Set up default protection ruleset for default and release branches

* fix tocken auth

* Further fixes to the token overwriting issue and restoration of hot reloading of tokens.json.

.asf.yaml

@@ -24,9 +24,28 @@ github:
     - olap
     - lakehouse
     - mcp
+    - ai
   enabled_merge_buttons:
-    squash:  true
-    merge:   false
-    rebase:  false
+    squash: true
+    merge: false
+    rebase: false
+  features:
+    issues: true
+    projects: true
+  rulesets:
+    - name: "Default Branch Protection"
+      type: branch
+      branches:
+        includes:
+          - "~DEFAULT_BRANCH"
+          - "release/*"
+          - "rel/*"
+        excludes: []
+      bypass_teams:
+        - root
+      restrict_deletion: true
+      restrict_force_push: true
 notifications:
-  pullrequests_status:  commits@doris.apache.org
+  issues: commits@doris.apache.org
+  commits: commits@doris.apache.org
+  pullrequests: commits@doris.apache.org

.dockerignore

@@ -0,0 +1,2 @@
+**/.venv
+**/venv

.env.example

@@ -14,58 +14,512 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
+# ===================================================================
+# Doris MCP Server Environment Configuration Example
+# ===================================================================
+# Copy this file to .env and modify the configuration values as needed
 
-# Doris MCP Server Environment Configuration
-# Copy this file to .env and modify the values as needed
+# ===================================================================
+# Database Connection Configuration
+# ===================================================================
 
-# Database Configuration
+# Doris FE (Frontend) connection settings
 DORIS_HOST=localhost
 DORIS_PORT=9030
 DORIS_USER=root
-DORIS_PASSWORD=your_password_here
-DORIS_DATABASE=your_database_name
+DORIS_PASSWORD=
+DORIS_DATABASE=information_schema
 
-# Connection Pool Settings
-DORIS_MIN_CONNECTIONS=5
+# Doris FE HTTP API port (for Profile and other HTTP APIs)
+DORIS_FE_HTTP_PORT=8030
+
+# Doris BE (Backend) nodes configuration (optional, for external access)
+# Format: host1,host2,host3 (if empty, will use "show backends" to get BE nodes)
+DORIS_BE_HOSTS=
+DORIS_BE_WEBSERVER_PORT=8040
+
+# Connection pool configuration
 DORIS_MAX_CONNECTIONS=20
 DORIS_CONNECTION_TIMEOUT=30
 DORIS_HEALTH_CHECK_INTERVAL=60
 DORIS_MAX_CONNECTION_AGE=3600
 
-# Security Settings
+# Arrow Flight SQL Configuration (Required for ADBC tools)
+# FE_ARROW_FLIGHT_SQL_PORT=
+# BE_ARROW_FLIGHT_SQL_PORT=
+
+# ===================================================================
+# Security Configuration
+# ===================================================================
+
+# Independent Authentication Switches - NEW DESIGN!
+# Each authentication method can be enabled/disabled independently
+# Any enabled method that succeeds will allow access
+# If all methods are disabled, anonymous access is allowed
+
+# Legacy configuration - kept for backward compatibility
+# AUTH_TYPE is now deprecated - use individual switches above
 AUTH_TYPE=token
-TOKEN_SECRET=your_256_bit_secret_key_here
+
+# Token Authentication (Default method - simple and effective)
+ENABLE_TOKEN_AUTH=false
+
+# JWT Authentication (For stateless applications)
+ENABLE_JWT_AUTH=false
+
+# OAuth 2.0/OIDC Authentication (For enterprise integration)
+ENABLE_OAUTH_AUTH=false
+
+# ===================================================================
+# Token Authentication Configuration (Enable with ENABLE_TOKEN_AUTH=true)
+# ===================================================================
+
+# Basic token authentication settings
+TOKEN_FILE_PATH=tokens.json
+ENABLE_TOKEN_EXPIRY=true
+DEFAULT_TOKEN_EXPIRY_HOURS=720
+TOKEN_HASH_ALGORITHM=sha256
+
+# ===================================================================
+# Token Management Security Configuration (NEW in v0.6.0) - CRITICAL SECURITY SETTINGS
+# ===================================================================
+
+# HTTP Token Management Endpoints (DISABLED BY DEFAULT FOR SECURITY)
+# WARNING: These endpoints allow creation, deletion, and management of authentication tokens
+# Only enable if you need HTTP-based token management and understand the security implications
+ENABLE_HTTP_TOKEN_MANAGEMENT=true
+
+# Admin Authentication Token (REQUIRED if HTTP token management is enabled)
+# This token is required to access HTTP token management endpoints
+# SECURITY: Generate a secure random token in production - NEVER use default values
+TOKEN_MANAGEMENT_ADMIN_TOKEN=
+
+# IP Address Restrictions for Token Management (CRITICAL SECURITY CONTROL)
+# Only these IP addresses/networks can access token management endpoints
+# DEFAULT: localhost only (most secure) - add other IPs/networks only if necessary
+# Format: comma-separated list of IPs and CIDR networks
+# Examples:
+#   - Localhost only: 127.0.0.1,::1
+#   - Private network: 127.0.0.1,192.168.1.0/24,10.0.0.0/8
+#   - Specific IPs: 127.0.0.1,192.168.1.10,192.168.1.11
+TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,::1
+
+# Require Admin Authentication (ENABLED BY DEFAULT FOR SECURITY)
+# When true, all token management operations require valid admin token
+# When false, only IP restrictions apply (NOT RECOMMENDED for production)
+REQUIRE_ADMIN_AUTH=true
+
+# ===================================================================
+# JWT Authentication Configuration (Enable with ENABLE_JWT_AUTH=true)
+# ===================================================================
+
+# JWT token settings (when ENABLE_JWT_AUTH=true)
+JWT_SECRET_KEY=your_jwt_secret_key_here_change_in_production
+JWT_ALGORITHM=HS256
+JWT_EXPIRATION_HOURS=24
+JWT_ISSUER=doris-mcp-server
+JWT_AUDIENCE=doris-mcp-client
+
+# JWT token validation settings
+JWT_VERIFY_SIGNATURE=true
+JWT_VERIFY_EXPIRATION=true
+JWT_VERIFY_AUDIENCE=true
+JWT_VERIFY_ISSUER=true
+
+# JWT refresh token settings
+ENABLE_JWT_REFRESH=true
+JWT_REFRESH_EXPIRATION_DAYS=30
+JWT_REFRESH_SECRET_KEY=your_jwt_refresh_secret_key_here
+
+# JWT user claims configuration
+JWT_USER_ID_CLAIM=user_id
+JWT_ROLES_CLAIM=roles
+JWT_PERMISSIONS_CLAIM=permissions
+JWT_SECURITY_LEVEL_CLAIM=security_level
+
+# ===================================================================
+# OAuth 2.0 / OpenID Connect Configuration (Enable with ENABLE_OAUTH_AUTH=true)
+# ===================================================================
+
+# OAuth provider settings (when ENABLE_OAUTH_AUTH=true)
+OAUTH_PROVIDER_TYPE=generic
+OAUTH_CLIENT_ID=your_oauth_client_id
+OAUTH_CLIENT_SECRET=your_oauth_client_secret
+OAUTH_REDIRECT_URI=http://localhost:3000/auth/callback
+
+# OAuth endpoints (for generic provider)
+OAUTH_AUTHORIZATION_URL=https://your-provider.com/auth
+OAUTH_TOKEN_URL=https://your-provider.com/token
+OAUTH_USERINFO_URL=https://your-provider.com/userinfo
+OAUTH_JWKS_URL=https://your-provider.com/.well-known/jwks.json
+
+# OAuth scope and claims
+OAUTH_SCOPE=openid profile email
+OAUTH_USER_ID_CLAIM=sub
+OAUTH_USERNAME_CLAIM=preferred_username
+OAUTH_EMAIL_CLAIM=email
+OAUTH_ROLES_CLAIM=roles
+OAUTH_GROUPS_CLAIM=groups
+
+# OAuth session settings
+OAUTH_SESSION_SECRET=your_oauth_session_secret_here
+OAUTH_SESSION_EXPIRY=3600
+OAUTH_STATE_EXPIRY=300
+
+# Popular OAuth providers presets (uncomment and configure as needed)
+
+# Google OAuth Configuration
+# OAUTH_PROVIDER_TYPE=google
+# OAUTH_CLIENT_ID=your_google_client_id.apps.googleusercontent.com
+# OAUTH_CLIENT_SECRET=your_google_client_secret
+# OAUTH_AUTHORIZATION_URL=https://accounts.google.com/o/oauth2/auth
+# OAUTH_TOKEN_URL=https://oauth2.googleapis.com/token
+# OAUTH_USERINFO_URL=https://www.googleapis.com/oauth2/v1/userinfo
+# OAUTH_JWKS_URL=https://www.googleapis.com/oauth2/v3/certs
+# OAUTH_SCOPE=openid profile email
+
+# Microsoft Azure AD Configuration
+# OAUTH_PROVIDER_TYPE=azure
+# OAUTH_CLIENT_ID=your_azure_client_id
+# OAUTH_CLIENT_SECRET=your_azure_client_secret
+# OAUTH_TENANT_ID=your_tenant_id
+# OAUTH_AUTHORIZATION_URL=https://login.microsoftonline.com/{tenant}/oauth2/v2.0/authorize
+# OAUTH_TOKEN_URL=https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token
+# OAUTH_USERINFO_URL=https://graph.microsoft.com/v1.0/me
+# OAUTH_JWKS_URL=https://login.microsoftonline.com/{tenant}/discovery/v2.0/keys
+# OAUTH_SCOPE=openid profile email
+
+# GitHub OAuth Configuration
+# OAUTH_PROVIDER_TYPE=github
+# OAUTH_CLIENT_ID=your_github_client_id
+# OAUTH_CLIENT_SECRET=your_github_client_secret
+# OAUTH_AUTHORIZATION_URL=https://github.com/login/oauth/authorize
+# OAUTH_TOKEN_URL=https://github.com/login/oauth/access_token
+# OAUTH_USERINFO_URL=https://api.github.com/user
+# OAUTH_SCOPE=user:email
+
+# GitLab OAuth Configuration
+# OAUTH_PROVIDER_TYPE=gitlab
+# OAUTH_CLIENT_ID=your_gitlab_client_id  
+# OAUTH_CLIENT_SECRET=your_gitlab_client_secret
+# OAUTH_AUTHORIZATION_URL=https://gitlab.com/oauth/authorize
+# OAUTH_TOKEN_URL=https://gitlab.com/oauth/token
+# OAUTH_USERINFO_URL=https://gitlab.com/api/v4/user
+# OAUTH_SCOPE=read_user
+
+# Keycloak OAuth Configuration
+# OAUTH_PROVIDER_TYPE=keycloak
+# OAUTH_CLIENT_ID=your_keycloak_client_id
+# OAUTH_CLIENT_SECRET=your_keycloak_client_secret
+# OAUTH_REALM=your_realm
+# OAUTH_SERVER_URL=https://your-keycloak-server.com
+# OAUTH_AUTHORIZATION_URL=https://your-keycloak-server.com/auth/realms/{realm}/protocol/openid-connect/auth
+# OAUTH_TOKEN_URL=https://your-keycloak-server.com/auth/realms/{realm}/protocol/openid-connect/token
+# OAUTH_USERINFO_URL=https://your-keycloak-server.com/auth/realms/{realm}/protocol/openid-connect/userinfo
+# OAUTH_JWKS_URL=https://your-keycloak-server.com/auth/realms/{realm}/protocol/openid-connect/certs
+# OAUTH_SCOPE=openid profile email
+
+# Legacy token settings (for backward compatibility)
+TOKEN_SECRET=your_secret_key_here
 TOKEN_EXPIRY=3600
+
+# SQL security check
+ENABLE_SECURITY_CHECK=true
+
+# Blocked keywords (comma separated)
+BLOCKED_KEYWORDS=DROP,CREATE,ALTER,TRUNCATE,DELETE,INSERT,UPDATE,GRANT,REVOKE,EXEC,EXECUTE,SHUTDOWN,KILL
+
+# Query limits
+MAX_QUERY_COMPLEXITY=100
 MAX_RESULT_ROWS=10000
+
+# Data masking
 ENABLE_MASKING=true
 
-# Performance Settings
+# ===================================================================
+# Performance Configuration
+# ===================================================================
+
+# Query cache
 ENABLE_QUERY_CACHE=true
 CACHE_TTL=300
 MAX_CACHE_SIZE=1000
+
+# Concurrency control
 MAX_CONCURRENT_QUERIES=50
 QUERY_TIMEOUT=300
 
-# Logging Configuration
-LOG_LEVEL=INFO
-LOG_FILE_PATH=./log/doris-mcp-server.log
-ENABLE_AUDIT=true
-AUDIT_FILE_PATH=./log/doris-mcp-audit.log
+# Response content size limit (characters)
+MAX_RESPONSE_CONTENT_SIZE=4096
 
-# Monitoring Settings
+# ===================================================================
+# ADBC (Arrow Flight SQL) Configuration
+# ===================================================================
+# Enable/disable ADBC tools
+ADBC_ENABLED=true
+
+# Default ADBC query parameters
+ADBC_DEFAULT_MAX_ROWS=100000
+ADBC_DEFAULT_TIMEOUT=60
+# Format: "arrow", "pandas", "dict"
+ADBC_DEFAULT_RETURN_FORMAT=arrow
+
+# ADBC connection timeout
+ADBC_CONNECTION_TIMEOUT=300
+
+# ===================================================================
+# Logging Configuration
+# ===================================================================
+
+# Basic logging configuration
+LOG_LEVEL=INFO
+LOG_FILE_PATH=
+
+# Audit logging
+ENABLE_AUDIT=true
+AUDIT_FILE_PATH=
+
+# Log file rotation configuration
+LOG_MAX_FILE_SIZE=10485760
+LOG_BACKUP_COUNT=5
+
+# ===================================================================
+# Log Cleanup Configuration - NEW!
+# ===================================================================
+
+# Enable automatic log cleanup
+ENABLE_LOG_CLEANUP=true
+
+# Maximum age of log files in days (files older than this will be deleted)
+LOG_MAX_AGE_DAYS=30
+
+# Cleanup check interval in hours
+LOG_CLEANUP_INTERVAL_HOURS=24
+
+# ===================================================================
+# Monitoring Configuration
+# ===================================================================
+
+# Metrics collection
 ENABLE_METRICS=true
 METRICS_PORT=3001
-METRICS_PATH=/metrics
 HEALTH_CHECK_PORT=3002
-HEALTH_CHECK_PATH=/health
+
+# Alert configuration
 ENABLE_ALERTS=false
 ALERT_WEBHOOK_URL=
 
-# Server Settings
+# ===================================================================
+# Server Configuration
+# ===================================================================
+
+# Basic server information
 SERVER_NAME=doris-mcp-server
-SERVER_VERSION=0.3.0
+SERVER_VERSION=0.6.0
 SERVER_PORT=3000
 
-# Development Settings (for development environment only)
-DEBUG=false
-VERBOSE=false 
+# Temporary files directory
+TEMP_FILES_DIR=tmp
+
+# ===================================================================
+# Configuration Examples for Different Environments
+# ===================================================================
+
+# Development Environment Example:
+# LOG_LEVEL=DEBUG
+# LOG_MAX_AGE_DAYS=7
+# LOG_CLEANUP_INTERVAL_HOURS=6
+# ENABLE_SECURITY_CHECK=false
+
+# Production Environment Example:
+# LOG_LEVEL=INFO
+# LOG_MAX_AGE_DAYS=30
+# LOG_CLEANUP_INTERVAL_HOURS=24
+# ENABLE_SECURITY_CHECK=true
+# ENABLE_LOG_CLEANUP=true
+
+# Testing Environment Example:
+# LOG_LEVEL=WARNING
+# LOG_MAX_AGE_DAYS=3
+# LOG_CLEANUP_INTERVAL_HOURS=1
+# MAX_RESULT_ROWS=1000
+
+# ===================================================================
+# Advanced Configuration Notes
+# ===================================================================
+
+# 1. Log Cleanup Feature:
+#    - ENABLE_LOG_CLEANUP: Controls whether to enable automatic cleanup
+#    - LOG_MAX_AGE_DAYS: File retention days, recommended 30 days for production, 7 days for development
+#    - LOG_CLEANUP_INTERVAL_HOURS: Check frequency, recommended 24 hours
+
+# 2. Security Best Practices:
+#    - NEW: Enable individual authentication methods using ENABLE_TOKEN_AUTH, ENABLE_JWT_AUTH, ENABLE_OAUTH_AUTH
+#    - When all methods are disabled, ALL requests are allowed with anonymous access
+#    - Authentication methods work independently - any one succeeding allows access
+#    - Token Auth: Change default tokens (DEFAULT_ADMIN_TOKEN, etc.) in production
+#    - JWT Auth: Change JWT_SECRET_KEY and JWT_REFRESH_SECRET_KEY in production
+#    - OAuth Auth: Configure OAuth provider settings and secure client secrets
+#    - Must change TOKEN_SECRET in production environment (legacy compatibility)
+#    - Adjust BLOCKED_KEYWORDS according to business needs
+#    - Enable ENABLE_SECURITY_CHECK and ENABLE_MASKING
+#    - NEW v0.6.0: Token Management Security (CRITICAL):
+#      * ENABLE_HTTP_TOKEN_MANAGEMENT=false by default (SECURE BY DEFAULT)
+#      * Only enable if you need HTTP token management endpoints
+#      * TOKEN_MANAGEMENT_ADMIN_TOKEN: Use secure random token in production
+#      * TOKEN_MANAGEMENT_ALLOWED_IPS: Restrict to localhost (127.0.0.1,::1) only
+#      * REQUIRE_ADMIN_AUTH=true: Always require admin authentication
+#      * Never expose token management endpoints to external networks
+
+# 3. Performance Tuning:
+#    - Adjust MAX_CONCURRENT_QUERIES based on hardware resources
+#    - Adjust QUERY_TIMEOUT based on query complexity
+#    - Adjust MAX_CACHE_SIZE based on memory size
+
+# 4. Connection Pool Optimization:
+#    - DORIS_MAX_CONNECTIONS recommended to be 2-4 times the number of CPU cores
+#    - DORIS_CONNECTION_TIMEOUT adjust based on network latency
+#    - DORIS_MAX_CONNECTION_AGE recommended 1 hour to avoid long connection issues
+
+# 5. ADBC (Arrow Flight SQL) Configuration:
+#    - FE_ARROW_FLIGHT_SQL_PORT and BE_ARROW_FLIGHT_SQL_PORT: Required for ADBC functionality
+#    - ADBC_DEFAULT_MAX_ROWS: Default maximum rows for ADBC queries (recommended: 100000)
+#    - ADBC_DEFAULT_TIMEOUT: Default timeout for ADBC queries in seconds (recommended: 60)
+#    - ADBC_DEFAULT_RETURN_FORMAT: Default return format (arrow/pandas/dict, recommended: arrow)
+#    - ADBC_CONNECTION_TIMEOUT: Connection timeout for ADBC (recommended: 30)
+#    - ADBC_ENABLED: Enable or disable ADBC tools (true/false)
+#    - Prerequisites: Install adbc_driver_manager, adbc_driver_flightsql, pyarrow packages
+
+# 6. Authentication Configuration Guide - UPDATED DESIGN!
+#    
+#    Independent Authentication Control (NEW):
+#    - ENABLE_TOKEN_AUTH=false (default): Disable token authentication
+#    - ENABLE_JWT_AUTH=false (default): Disable JWT authentication  
+#    - ENABLE_OAUTH_AUTH=false (default): Disable OAuth authentication
+#    - When all methods are disabled, no authentication is required (anonymous access)
+#    - When multiple methods are enabled, any one succeeding allows access
+#    - Recommended for development/testing: all false, production: enable needed methods
+#    
+#    Token Authentication (ENABLE_TOKEN_AUTH=true) - Recommended for most use cases:
+#    - Simple and secure token-based authentication
+#    - Configurable default tokens via environment variables
+#    - Support for custom tokens via TOKEN_* environment variables
+#    - Token file configuration via tokens.json
+#    - Built-in token management HTTP endpoints
+#    - No user management complexity - pure API access control
+#    
+#    JWT Authentication (ENABLE_JWT_AUTH=true) - For stateless applications:
+#    - JSON Web Token based authentication
+#    - Configurable token expiration and refresh
+#    - Support for standard JWT claims
+#    - RSA/ECDSA/HS256 algorithm support
+#    - Suitable for microservices and distributed systems
+#    
+#    OAuth 2.0/OIDC (ENABLE_OAUTH_AUTH=true) - For enterprise integration:
+#    - Integration with external identity providers
+#    - Support for popular providers (Google, Microsoft, GitHub, GitLab, Keycloak)
+#    - OpenID Connect compatibility
+#    - Automatic user provisioning from provider
+#    - Secure authorization code flow
+#    
+#    Authentication Method Selection Guide:
+#    - No Auth (all switches false): Development, testing, trusted networks
+#    - Token Auth only: Small teams, simple deployment, direct API access
+#    - JWT Auth only: Stateless apps, microservices, mobile clients
+#    - OAuth Auth only: Enterprise SSO, large teams, external identity providers
+#    - Multiple methods: Flexible access, different client types, migration scenarios 
+
+# 7. Token Management Security Configuration Guide (NEW in v0.6.0) - CRITICAL!
+#    
+#    ⚠️ SECURITY WARNING: Token management endpoints are POWERFUL and DANGEROUS
+#    They allow creation, revocation, and management of authentication tokens.
+#    Improper configuration can lead to complete system compromise.
+#    
+#    🔒 SECURE BY DEFAULT:
+#    - ENABLE_HTTP_TOKEN_MANAGEMENT=false (disabled by default)
+#    - REQUIRE_ADMIN_AUTH=true (admin auth required by default)  
+#    - TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,::1 (localhost only by default)
+#    
+#    🛡️ SECURITY LAYERS (Applied in order):
+#    1. Configuration Check: HTTP token management must be explicitly enabled
+#    2. IP Restrictions: Only allowed IP addresses/networks can access endpoints
+#    3. Admin Authentication: Valid admin token required for all operations
+#    
+#    📋 CONFIGURATION OPTIONS:
+#    
+#    Disable Token Management (RECOMMENDED for most deployments):
+#    ENABLE_HTTP_TOKEN_MANAGEMENT=false
+#    # All token management endpoints will return 403 Forbidden
+#    
+#    Enable with Maximum Security (Production):
+#    ENABLE_HTTP_TOKEN_MANAGEMENT=true
+#    TOKEN_MANAGEMENT_ADMIN_TOKEN=<secure-random-token-256-bit>
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,::1
+#    REQUIRE_ADMIN_AUTH=true
+#    
+#    Enable for Private Network (Advanced):
+#    ENABLE_HTTP_TOKEN_MANAGEMENT=true
+#    TOKEN_MANAGEMENT_ADMIN_TOKEN=<secure-random-token-256-bit>
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,192.168.1.0/24,10.0.0.0/8
+#    REQUIRE_ADMIN_AUTH=true
+#    
+#    🔑 ADMIN TOKEN GENERATION:
+#    # Generate secure admin token (Linux/macOS):
+#    openssl rand -hex 32
+#    
+#    # Generate secure admin token (Python):
+#    python -c "import secrets; print(secrets.token_urlsafe(32))"
+#    
+#    🌐 IP CONFIGURATION EXAMPLES:
+#    # Localhost only (most secure):
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,::1
+#    
+#    # Private network + localhost:
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,::1,192.168.1.0/24,10.0.0.0/8
+#    
+#    # Specific servers only:
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,192.168.1.10,192.168.1.11
+#    
+#    # Corporate network (be careful):
+#    TOKEN_MANAGEMENT_ALLOWED_IPS=127.0.0.1,172.16.0.0/12,192.168.0.0/16
+#    
+#    🚫 NEVER DO THIS (Security Anti-Patterns):
+#    # NEVER allow all IPs:
+#    # TOKEN_MANAGEMENT_ALLOWED_IPS=0.0.0.0/0  # DANGEROUS!
+#    
+#    # NEVER disable admin auth in production:
+#    # REQUIRE_ADMIN_AUTH=false  # DANGEROUS!
+#    
+#    # NEVER use weak admin tokens:
+#    # TOKEN_MANAGEMENT_ADMIN_TOKEN=admin  # DANGEROUS!
+#    # TOKEN_MANAGEMENT_ADMIN_TOKEN=123456  # DANGEROUS!
+#    
+#    📊 ENDPOINT SECURITY TESTING:
+#    # Test security (should fail):
+#    curl -X POST http://external-ip:3000/token/create
+#    # Expected: 403 Forbidden (IP not allowed)
+#    
+#    # Test without auth (should fail):
+#    curl -X POST http://127.0.0.1:3000/token/create
+#    # Expected: 401 Unauthorized (missing admin token)
+#    
+#    # Test with valid auth (should succeed if enabled):
+#    curl -H "Authorization: Bearer your-admin-token" http://127.0.0.1:3000/token/stats
+#    # Expected: 200 OK with token statistics
+#    
+#    🔍 MONITORING & AUDITING:
+#    # All token management access attempts are logged:
+#    tail -f logs/doris_mcp_server_audit.log | grep "token management"
+#    
+#    # Monitor security events:
+#    tail -f logs/doris_mcp_server_info.log | grep -E "(access denied|token management)"
+#    
+#    ✅ SECURITY BEST PRACTICES:
+#    - Keep ENABLE_HTTP_TOKEN_MANAGEMENT=false unless absolutely necessary
+#    - Use file-based token management (tokens.json) instead of HTTP endpoints
+#    - Generate strong admin tokens using cryptographically secure methods
+#    - Restrict access to localhost (127.0.0.1,::1) whenever possible
+#    - Never expose token management endpoints to public internet
+#    - Regularly audit token management access logs
+#    - Use firewall rules as additional protection layer
+#    - Consider VPN access for remote token management needs

.gitignore

@@ -0,0 +1,23 @@
+*.log
+*.log.*
+*.bak
+logs
+/configs/*.py
+.vscode/
+__pycache__/
+*.log
+
+.python-version
+Pipfile.lock
+poetry.lock
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+.idea/
+.coverage
+coverage.xml

Dockerfile

@@ -32,6 +32,7 @@ RUN apt-get update && apt-get install -y \
     g++ \
     pkg-config \
     default-libmysqlclient-dev \
+    dos2unix \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy requirements file
@@ -43,12 +44,13 @@ RUN pip install --no-cache-dir -r requirements.txt
 # Copy application code
 COPY . .
 
+# Convert line endings for shell scripts and ensure proper execution format
+RUN find . -name "*.sh" -exec dos2unix {} \; && \
+    find . -name "*.sh" -exec chmod +x {} \;
+
 # Create necessary directories
 RUN mkdir -p /app/logs /app/config /app/data
 
-# Set permissions
-RUN chmod +x /app/start.sh
-
 # Create non-root user
 RUN groupadd -r doris && useradd -r -g doris doris
 RUN chown -R doris:doris /app
@@ -62,4 +64,4 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
 EXPOSE 3000 3001 3002
 
 # Start command
-CMD ["/app/start.sh"] 
+CMD ["/app/start_server.sh"]

doris_mcp_client/README.md

@@ -133,9 +133,6 @@ async def database_operations(client):
     
     # Get table schema
     schema = await client.get_table_schema("table_name", "db_name")
-    
-    # Column data analysis
-    analysis = await client.analyze_column("table", "column", "basic")
 ```
 
 ## 🧪 Testing
@@ -177,7 +174,6 @@ python test_unified_client.py benchmark
   2. get_table_list: Get table list for specified database
   3. get_table_schema: Get table structure information
   4. exec_query: Execute SQL query
-  5. column_analysis: Analyze column data distribution and statistics
   ...
 
 🧪 Testing basic functionality...
@@ -189,8 +185,6 @@ python test_unified_client.py benchmark
    ✅ SSB query successful
 4️⃣ Getting table structure...
    ✅ Table structure retrieved successfully
-5️⃣ Column data analysis...
-   ✅ Column analysis successful
 
 ✅ HTTP mode testing completed!
 ```
@@ -255,12 +249,6 @@ async def comprehensive_example():
         # Get table schema
         schema_result = await client.get_table_schema("lineorder", "ssb")
         print(f"Table schema: {schema_result}")
-        
-        # Column analysis
-        analysis_result = await client.analyze_column(
-            "lineorder", "lo_orderkey", "basic"
-        )
-        print(f"Column analysis: {analysis_result}")
     
     await client.connect_and_run(demo_operations)
 

doris_mcp_client/client.py

@@ -323,7 +323,7 @@ class DorisUnifiedClient:
             async with streamablehttp_client(
                 self.config.server_url,
                 timeout=timedelta(seconds=self.config.timeout)
-            ) as (read, write):
+            ) as (read, write, _):
                 async with ClientSession(read, write) as session:
                     self.session = session
                     self._init_sub_clients()
@@ -422,18 +422,14 @@ class DorisUnifiedClient:
 
         return await self.call_tool(tool_name, kwargs)
 
-    async def analyze_column(self, table_name: str, column_name: str, analysis_type: str = "basic", **kwargs) -> dict[str, Any]:
-        """Analyze column"""
-        tool_name = await self._find_tool_by_pattern(["column_analysis", "analyze_column", "column"])
+    async def get_memory_stats(self, tracker_type: str = "overview", include_details: bool = True, **kwargs) -> dict[str, Any]:
+        """Get memory statistics"""
+        tool_name = await self._find_tool_by_pattern(["memory", "realtime_memory"])
         if not tool_name:
-            return {"success": False, "error": "Column analysis tool not found"}
-
-        arguments = {
-            "table_name": table_name,
-            "column_name": column_name,
-            "analysis_type": analysis_type,
-            **kwargs
-        }
+            return {"success": False, "error": "Memory stats tool not found"}
+        
+        arguments = {"tracker_type": tracker_type, "include_details": include_details}
+        arguments.update(kwargs)
         return await self.call_tool(tool_name, arguments)
 
     async def call_tool_by_function(self, function_description: str, arguments: dict[str, Any]) -> dict[str, Any]:
@@ -467,7 +463,7 @@ async def create_http_client(server_url: str, timeout: int = 60) -> DorisUnified
 # Example usage
 async def example_stdio():
     """stdio mode example"""
-    client = await create_stdio_client("python", ["doris_mcp_server/main.py"])
+    client = await create_stdio_client("python", ["-m", "doris_mcp_server.main", "--transport", "stdio"])
 
     async def test_client(client: DorisUnifiedClient):
         # Get server capabilities
@@ -510,4 +506,4 @@ if __name__ == "__main__":
     asyncio.run(example_stdio())
 
     # Run HTTP example
-    # asyncio.run(example_http()) 
+    # asyncio.run(example_http()) 

doris_mcp_server/auth/__init__.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Doris MCP Server Authentication Module
+Provides JWT-based, Token-based, and OAuth 2.0/OIDC authentication and authorization services
+"""
+
+from .jwt_manager import JWTManager
+from .key_manager import KeyManager
+from .token_validators import TokenValidator, TokenBlacklist
+from .auth_middleware import AuthMiddleware
+from .token_manager import TokenManager, TokenInfo, TokenValidationResult
+from .token_handlers import TokenHandlers
+from .oauth_client import OAuthClient, OAuthStateManager
+from .oauth_provider import OAuthAuthenticationProvider
+from .oauth_types import (
+    OAuthProvider, OAuthState, OAuthTokens, OAuthUserInfo,
+    OIDCDiscovery, OAuthError, OAuthProviderConfig
+)
+
+__all__ = [
+    "JWTManager",
+    "KeyManager", 
+    "TokenValidator",
+    "TokenBlacklist",
+    "AuthMiddleware",
+    "TokenManager",
+    "TokenInfo", 
+    "TokenValidationResult",
+    "TokenHandlers",
+    "OAuthClient",
+    "OAuthStateManager",
+    "OAuthAuthenticationProvider",
+    "OAuthProvider",
+    "OAuthState",
+    "OAuthTokens",
+    "OAuthUserInfo",
+    "OIDCDiscovery",
+    "OAuthError",
+    "OAuthProviderConfig"
+]

doris_mcp_server/auth/auth_middleware.py

@@ -0,0 +1,271 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Authentication Middleware Module
+Provides middleware for JWT authentication in HTTP and MCP contexts
+"""
+
+from typing import Optional, Dict, Any, Callable, Awaitable
+from datetime import datetime
+
+from .jwt_manager import JWTManager
+from ..utils.security import AuthContext, SecurityLevel
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class AuthMiddleware:
+    """Authentication Middleware
+    
+    Provides JWT authentication functionality for HTTP and MCP requests
+    """
+    
+    def __init__(self, jwt_manager: JWTManager):
+        """Initialize authentication middleware
+        
+        Args:
+            jwt_manager: JWT manager instance
+        """
+        self.jwt_manager = jwt_manager
+        logger.info("AuthMiddleware initialized")
+    
+    def extract_token_from_header(self, authorization: str) -> Optional[str]:
+        """Extract JWT token from Authorization header
+        
+        Args:
+            authorization: Authorization header value
+            
+        Returns:
+            JWT token string, or None if not found
+        """
+        if not authorization:
+            return None
+        
+        # Support Bearer format
+        if authorization.startswith('Bearer '):
+            return authorization[7:]  # Remove "Bearer " prefix
+        
+        # Support direct token format
+        if not authorization.startswith('Basic '):
+            return authorization
+        
+        return None
+    
+    async def authenticate_request(self, auth_info: Dict[str, Any]) -> AuthContext:
+        """Authenticate request and return authentication context
+        
+        Args:
+            auth_info: Authentication information dictionary
+            
+        Returns:
+            AuthContext authentication context
+            
+        Raises:
+            ValueError: Authentication failed
+        """
+        try:
+            auth_type = auth_info.get("type", "jwt")
+            
+            if auth_type == "jwt" or auth_type == "token":
+                return await self._authenticate_jwt(auth_info)
+            else:
+                raise ValueError(f"Unsupported authentication type: {auth_type}")
+                
+        except Exception as e:
+            logger.error(f"Request authentication failed: {e}")
+            raise
+    
+    async def _authenticate_jwt(self, auth_info: Dict[str, Any]) -> AuthContext:
+        """JWT authentication processing
+        
+        Args:
+            auth_info: Authentication information containing JWT token
+            
+        Returns:
+            AuthContext authentication context
+        """
+        # Get token
+        token = auth_info.get("token")
+        if not token:
+            # Try to get from Authorization header
+            authorization = auth_info.get("authorization")
+            token = self.extract_token_from_header(authorization)
+        
+        if not token:
+            raise ValueError("Missing JWT token")
+        
+        try:
+            # Validate token
+            validation_result = await self.jwt_manager.validate_token(token, 'access')
+            payload = validation_result['payload']
+            
+            # Build authentication context
+            auth_context = AuthContext(
+                token_id=payload.get('jti', ''),
+                user_id=payload.get('sub'),
+                roles=payload.get('roles', []),
+                permissions=payload.get('permissions', []),
+                security_level=SecurityLevel(payload.get('security_level', 'internal')),
+                session_id=payload.get('jti'),  # Use JWT ID as session ID
+                login_time=datetime.fromtimestamp(payload.get('iat', 0)),
+                last_activity=datetime.utcnow(),
+                token=token  # Store raw token for token-bound database configuration
+            )
+            
+            logger.info(f"JWT authentication successful for user: {auth_context.user_id}")
+            return auth_context
+            
+        except Exception as e:
+            logger.error(f"JWT authentication failed: {e}")
+            raise ValueError(f"JWT authentication failed: {str(e)}")
+    
+    async def create_auth_response_headers(self, auth_context: AuthContext) -> Dict[str, str]:
+        """Create authentication response headers
+        
+        Args:
+            auth_context: Authentication context
+            
+        Returns:
+            Response headers dictionary
+        """
+        return {
+            'X-Auth-User': auth_context.user_id,
+            'X-Auth-Roles': ','.join(auth_context.roles),
+            'X-Auth-Session': auth_context.session_id,
+            'X-Auth-Security-Level': auth_context.security_level.value
+        }
+    
+    def create_http_middleware(self, skip_paths: Optional[list] = None):
+        """Create HTTP middleware function
+        
+        Args:
+            skip_paths: List of paths to skip authentication
+            
+        Returns:
+            ASGI middleware function
+        """
+        skip_paths = skip_paths or ['/health', '/docs', '/openapi.json']
+        
+        async def middleware(scope, receive, send):
+            """HTTP authentication middleware"""
+            if scope['type'] != 'http':
+                # Pass through non-HTTP requests directly
+                return await self.app(scope, receive, send)
+            
+            path = scope.get('path', '')
+            
+            # Check if authentication should be skipped
+            if any(path.startswith(skip) for skip in skip_paths):
+                return await self.app(scope, receive, send)
+            
+            # Extract authentication information
+            headers = dict(scope.get('headers', []))
+            authorization = headers.get(b'authorization', b'').decode()
+            
+            try:
+                # Perform authentication
+                auth_info = {
+                    'type': 'jwt',
+                    'authorization': authorization
+                }
+                auth_context = await self.authenticate_request(auth_info)
+                
+                # Add authentication context to scope
+                scope['auth_context'] = auth_context
+                
+                # Create response wrapper to add authentication headers
+                async def send_wrapper(message):
+                    if message['type'] == 'http.response.start':
+                        headers = dict(message.get('headers', []))
+                        auth_headers = await self.create_auth_response_headers(auth_context)
+                        
+                        for key, value in auth_headers.items():
+                            headers[key.encode()] = value.encode()
+                        
+                        message['headers'] = list(headers.items())
+                    
+                    await send(message)
+                
+                return await self.app(scope, receive, send_wrapper)
+                
+            except Exception as e:
+                # Authentication failed, return 401 error
+                response_body = f'{{"error": "Authentication failed", "message": "{str(e)}"}}'
+                
+                await send({
+                    'type': 'http.response.start',
+                    'status': 401,
+                    'headers': [
+                        (b'content-type', b'application/json'),
+                        (b'www-authenticate', b'Bearer')
+                    ]
+                })
+                await send({
+                    'type': 'http.response.body',
+                    'body': response_body.encode()
+                })
+        
+        return middleware
+    
+    async def authenticate_mcp_request(self, headers: Dict[str, str]) -> AuthContext:
+        """Authenticate MCP request
+        
+        Args:
+            headers: MCP request headers
+            
+        Returns:
+            AuthContext authentication context
+        """
+        try:
+            # Extract authentication information from multiple possible header fields
+            authorization = (
+                headers.get('Authorization') or 
+                headers.get('authorization') or
+                headers.get('X-Auth-Token') or
+                headers.get('x-auth-token')
+            )
+            
+            auth_info = {
+                'type': 'jwt',
+                'authorization': authorization
+            }
+            
+            return await self.authenticate_request(auth_info)
+            
+        except Exception as e:
+            logger.error(f"MCP request authentication failed: {e}")
+            raise
+
+
+class AuthenticationError(Exception):
+    """Authentication error exception"""
+    
+    def __init__(self, message: str, error_code: str = "AUTH_FAILED"):
+        self.message = message
+        self.error_code = error_code
+        super().__init__(message)
+
+
+class AuthorizationError(Exception):
+    """Authorization error exception"""
+    
+    def __init__(self, message: str, error_code: str = "ACCESS_DENIED"):
+        self.message = message
+        self.error_code = error_code
+        super().__init__(message)

doris_mcp_server/auth/jwt_manager.py

@@ -0,0 +1,471 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+JWT Manager Module
+Provides comprehensive JWT token management including generation, validation, refresh and revocation
+"""
+
+import time
+import uuid
+import asyncio
+from typing import Dict, Any, Optional, Tuple
+from datetime import datetime, timedelta
+
+try:
+    import jwt
+except ImportError:
+    raise ImportError("PyJWT is required for JWT functionality. Install with: pip install PyJWT[crypto]")
+
+from .key_manager import KeyManager
+from .token_validators import TokenValidator, TokenBlacklist
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class JWTManager:
+    """JWT Token Manager
+    
+    Provides comprehensive JWT token lifecycle management, including:
+    - Token generation and signing
+    - Token validation and parsing
+    - Token refresh mechanism
+    - Token revocation and blacklist
+    - Automatic key rotation
+    """
+    
+    def __init__(self, config):
+        """Initialize JWT manager
+        
+        Args:
+            config: DorisConfig configuration object (with security attribute)
+        """
+        self.config = config
+        # Access JWT settings through the security configuration
+        if hasattr(config, 'security'):
+            security_config = config.security
+        else:
+            # Fallback if config is passed directly as SecurityConfig
+            security_config = config
+            
+        self.algorithm = security_config.jwt_algorithm
+        self.issuer = security_config.jwt_issuer
+        self.audience = security_config.jwt_audience
+        self.access_token_expiry = security_config.jwt_access_token_expiry
+        self.refresh_token_expiry = security_config.jwt_refresh_token_expiry
+        self.enable_refresh = security_config.enable_token_refresh
+        self.enable_revocation = security_config.enable_token_revocation
+        
+        # Initialize components
+        self.key_manager = KeyManager(config)
+        self.token_blacklist = TokenBlacklist()
+        self.validator = TokenValidator(config, self.token_blacklist)
+        
+        # Automatic key rotation task
+        self._key_rotation_task = None
+        
+        logger.info(f"JWTManager initialized with algorithm: {self.algorithm}")
+    
+    async def initialize(self) -> bool:
+        """Initialize JWT manager"""
+        try:
+            # Initialize key manager
+            if not await self.key_manager.initialize():
+                logger.error("Failed to initialize key manager")
+                return False
+            
+            # Start token validator
+            await self.validator.start()
+            
+            # Start automatic key rotation
+            if self.key_manager.key_rotation_interval > 0:
+                self._key_rotation_task = asyncio.create_task(self._auto_key_rotation())
+            
+            logger.info("JWTManager initialization completed")
+            return True
+            
+        except Exception as e:
+            logger.error(f"Failed to initialize JWTManager: {e}")
+            return False
+    
+    async def shutdown(self):
+        """Shutdown JWT manager"""
+        try:
+            # Stop key rotation task
+            if self._key_rotation_task:
+                self._key_rotation_task.cancel()
+                try:
+                    await self._key_rotation_task
+                except asyncio.CancelledError:
+                    pass
+            
+            # Stop validator
+            await self.validator.stop()
+            
+            logger.info("JWTManager shutdown completed")
+            
+        except Exception as e:
+            logger.error(f"Error during JWTManager shutdown: {e}")
+    
+    async def generate_tokens(self, user_info: Dict[str, Any], 
+                            custom_claims: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
+        """Generate access token and refresh token
+        
+        Args:
+            user_info: User information dictionary, containing user_id, roles, permissions, etc.
+            custom_claims: Custom claims
+            
+        Returns:
+            Dictionary containing access_token and refresh_token
+        """
+        try:
+            current_time = int(time.time())
+            jti = str(uuid.uuid4())
+            
+            # Build base payload
+            base_payload = {
+                'iss': self.issuer,
+                'aud': self.audience,
+                'iat': current_time,
+                'jti': jti,
+                'sub': user_info.get('user_id'),
+                'roles': user_info.get('roles', []),
+                'permissions': user_info.get('permissions', []),
+                'security_level': user_info.get('security_level', 'internal')
+            }
+            
+            # Add custom claims
+            if custom_claims:
+                base_payload.update(custom_claims)
+            
+            # Generate access token
+            access_payload = base_payload.copy()
+            access_payload.update({
+                'exp': current_time + self.access_token_expiry,
+                'token_type': 'access'
+            })
+            
+            access_token = await self._sign_token(access_payload)
+            
+            result = {
+                'access_token': access_token,
+                'token_type': 'Bearer',
+                'expires_in': self.access_token_expiry,
+                'user_id': user_info.get('user_id'),
+                'issued_at': current_time
+            }
+            
+            # Generate refresh token (if enabled)
+            if self.enable_refresh:
+                refresh_jti = str(uuid.uuid4())
+                refresh_payload = {
+                    'iss': self.issuer,
+                    'aud': self.audience,
+                    'iat': current_time,
+                    'exp': current_time + self.refresh_token_expiry,
+                    'jti': refresh_jti,
+                    'sub': user_info.get('user_id'),
+                    'token_type': 'refresh',
+                    'access_jti': jti  # Associated access token ID
+                }
+                
+                refresh_token = await self._sign_token(refresh_payload)
+                result.update({
+                    'refresh_token': refresh_token,
+                    'refresh_expires_in': self.refresh_token_expiry
+                })
+            
+            logger.info(f"Generated tokens for user: {user_info.get('user_id')}")
+            return result
+            
+        except Exception as e:
+            logger.error(f"Failed to generate tokens: {e}")
+            raise
+    
+    async def _sign_token(self, payload: Dict[str, Any]) -> str:
+        """Sign JWT token
+        
+        Args:
+            payload: JWT payload
+            
+        Returns:
+            Signed JWT token
+        """
+        try:
+            signing_key = self.key_manager.get_private_key()
+            
+            if self.algorithm == "HS256":
+                # Symmetric key signing
+                token = jwt.encode(payload, signing_key, algorithm=self.algorithm)
+            else:
+                # Asymmetric key signing
+                token = jwt.encode(payload, signing_key, algorithm=self.algorithm)
+            
+            return token
+            
+        except Exception as e:
+            logger.error(f"Failed to sign token: {e}")
+            raise
+    
+    async def validate_token(self, token: str, token_type: str = 'access') -> Dict[str, Any]:
+        """Validate JWT token
+        
+        Args:
+            token: JWT token string
+            token_type: Token type ('access' or 'refresh')
+            
+        Returns:
+            Validation result and user information
+            
+        Raises:
+            ValueError: Token validation failed
+        """
+        try:
+            # Decode token
+            verification_key = self.key_manager.get_public_key()
+            
+            # Get security configuration
+            if hasattr(self.config, 'security'):
+                security_config = self.config.security
+            else:
+                security_config = self.config
+            
+            # JWT decoding options
+            options = {
+                'verify_signature': security_config.jwt_verify_signature,
+                'verify_exp': security_config.jwt_require_exp,
+                'verify_iat': security_config.jwt_require_iat,
+                'verify_nbf': security_config.jwt_require_nbf,
+                'verify_aud': security_config.jwt_verify_audience,
+                'verify_iss': security_config.jwt_verify_issuer,
+            }
+            
+            # Decode JWT
+            payload = jwt.decode(
+                token,
+                verification_key,
+                algorithms=[self.algorithm],
+                audience=self.audience if security_config.jwt_verify_audience else None,
+                issuer=self.issuer if security_config.jwt_verify_issuer else None,
+                leeway=security_config.jwt_leeway,
+                options=options
+            )
+            
+            # Check token type
+            if payload.get('token_type') != token_type:
+                raise ValueError(f"Invalid token type: expected {token_type}")
+            
+            # Use validator for additional checks
+            validation_result = await self.validator.validate_claims(payload)
+            
+            logger.info(f"Token validation successful for user: {payload.get('sub')}")
+            return validation_result
+            
+        except jwt.ExpiredSignatureError:
+            raise ValueError("Token has expired")
+        except jwt.InvalidTokenError as e:
+            raise ValueError(f"Invalid token: {str(e)}")
+        except Exception as e:
+            logger.error(f"Token validation failed: {e}")
+            raise ValueError(f"Token validation failed: {str(e)}")
+    
+    async def refresh_token(self, refresh_token: str) -> Dict[str, Any]:
+        """Refresh access token
+        
+        Args:
+            refresh_token: Refresh token
+            
+        Returns:
+            New token pair
+        """
+        if not self.enable_refresh:
+            raise ValueError("Token refresh is disabled")
+        
+        try:
+            # Validate refresh token
+            refresh_result = await self.validate_token(refresh_token, 'refresh')
+            refresh_payload = refresh_result['payload']
+            
+            # Revoke associated access token (if revocation is enabled)
+            if self.enable_revocation:
+                access_jti = refresh_payload.get('access_jti')
+                if access_jti:
+                    # Should revoke old access token here, but since we don't know its expiration time,
+                    # in practice might need to store more information or use different strategy
+                    pass
+            
+            # Build new user information
+            user_info = {
+                'user_id': refresh_payload.get('sub'),
+                'roles': refresh_payload.get('roles', []),
+                'permissions': refresh_payload.get('permissions', []),
+                'security_level': refresh_payload.get('security_level', 'internal')
+            }
+            
+            # Generate new token pair
+            new_tokens = await self.generate_tokens(user_info)
+            
+            logger.info(f"Token refreshed for user: {user_info['user_id']}")
+            return new_tokens
+            
+        except Exception as e:
+            logger.error(f"Token refresh failed: {e}")
+            raise
+    
+    async def revoke_token(self, token: str) -> bool:
+        """Revoke token
+        
+        Args:
+            token: Token to revoke
+            
+        Returns:
+            Whether revocation was successful
+        """
+        if not self.enable_revocation:
+            logger.warning("Token revocation is disabled")
+            return False
+        
+        try:
+            # Decode token to get JTI and expiration time
+            verification_key = self.key_manager.get_public_key()
+            payload = jwt.decode(
+                token,
+                verification_key,
+                algorithms=[self.algorithm],
+                options={'verify_exp': False}  # Allow decoding expired tokens
+            )
+            
+            jti = payload.get('jti')
+            exp = payload.get('exp')
+            
+            if not jti or not exp:
+                logger.error("Token missing required claims for revocation")
+                return False
+            
+            # Add to blacklist
+            await self.validator.revoke_token(jti, exp)
+            
+            logger.info(f"Token {jti} revoked successfully")
+            return True
+            
+        except Exception as e:
+            logger.error(f"Token revocation failed: {e}")
+            return False
+    
+    async def decode_token_unsafe(self, token: str) -> Dict[str, Any]:
+        """Decode token without verifying signature (for debugging only)
+        
+        Args:
+            token: JWT token
+            
+        Returns:
+            Token payload
+        """
+        try:
+            payload = jwt.decode(token, options={'verify_signature': False})
+            return payload
+        except Exception as e:
+            logger.error(f"Failed to decode token: {e}")
+            raise
+    
+    async def get_token_info(self, token: str) -> Dict[str, Any]:
+        """Get token information (without verifying signature)
+        
+        Args:
+            token: JWT token
+            
+        Returns:
+            Token information
+        """
+        try:
+            payload = await self.decode_token_unsafe(token)
+            
+            return {
+                'jti': payload.get('jti'),
+                'sub': payload.get('sub'),
+                'iss': payload.get('iss'),
+                'aud': payload.get('aud'),
+                'iat': payload.get('iat'),
+                'exp': payload.get('exp'),
+                'token_type': payload.get('token_type'),
+                'roles': payload.get('roles'),
+                'permissions': payload.get('permissions'),
+                'security_level': payload.get('security_level'),
+                'is_expired': payload.get('exp', 0) < time.time() if payload.get('exp') else None
+            }
+            
+        except Exception as e:
+            logger.error(f"Failed to get token info: {e}")
+            raise
+    
+    async def _auto_key_rotation(self):
+        """Automatic key rotation task"""
+        while True:
+            try:
+                # Check if key rotation is needed
+                if await self.key_manager.is_key_expired():
+                    logger.info("Key rotation needed, rotating keys...")
+                    await self.key_manager.rotate_keys()
+                
+                # Wait until next check
+                await asyncio.sleep(3600)  # Check every hour
+                
+            except asyncio.CancelledError:
+                break
+            except Exception as e:
+                logger.error(f"Error in auto key rotation: {e}")
+                # Wait longer before retry after error
+                await asyncio.sleep(3600)
+    
+    async def get_public_key_info(self) -> Dict[str, Any]:
+        """Get public key information (for client verification)
+        
+        Returns:
+            Public key information
+        """
+        key_info = await self.key_manager.get_key_info()
+        public_key_pem = await self.key_manager.export_public_key_pem()
+        
+        return {
+            'algorithm': self.algorithm,
+            'public_key_pem': public_key_pem,
+            'key_info': key_info
+        }
+    
+    async def get_manager_stats(self) -> Dict[str, Any]:
+        """Get manager statistics
+        
+        Returns:
+            Statistics information
+        """
+        key_info = await self.key_manager.get_key_info()
+        validation_stats = await self.validator.get_validation_stats()
+        
+        return {
+            'jwt_config': {
+                'algorithm': self.algorithm,
+                'issuer': self.issuer,
+                'audience': self.audience,
+                'access_token_expiry': self.access_token_expiry,
+                'refresh_token_expiry': self.refresh_token_expiry,
+                'enable_refresh': self.enable_refresh,
+                'enable_revocation': self.enable_revocation
+            },
+            'key_manager': key_info,
+            'validator': validation_stats
+        }

doris_mcp_server/auth/key_manager.py

@@ -0,0 +1,343 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+JWT Key Management Module
+Provides secure key generation, loading, rotation and management for JWT tokens
+"""
+
+import os
+import time
+import secrets
+from pathlib import Path
+from typing import Optional, Tuple, Union
+from datetime import datetime, timedelta
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import rsa, ec
+from cryptography.hazmat.backends import default_backend
+
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class KeyManager:
+    """JWT Key Manager
+    
+    Responsible for generating, loading, rotating and securely storing JWT signing keys
+    Supports RSA and EC algorithms, provides automatic key rotation functionality
+    """
+    
+    def __init__(self, config):
+        """Initialize key manager
+        
+        Args:
+            config: DorisConfig configuration object (with security attribute)
+        """
+        self.config = config
+        # Access JWT settings through the security configuration
+        if hasattr(config, 'security'):
+            security_config = config.security
+        else:
+            # Fallback if config is passed directly as SecurityConfig
+            security_config = config
+            
+        self.algorithm = security_config.jwt_algorithm
+        self.key_rotation_interval = security_config.key_rotation_interval
+        self.private_key_path = security_config.jwt_private_key_path
+        self.public_key_path = security_config.jwt_public_key_path
+        self.secret_key = security_config.jwt_secret_key
+        
+        # Key storage
+        self._private_key = None
+        self._public_key = None
+        self._secret_key = None
+        self._key_generated_at = None
+        
+        logger.info(f"KeyManager initialized with algorithm: {self.algorithm}")
+    
+    async def initialize(self) -> bool:
+        """Initialize key manager, load or generate keys"""
+        try:
+            if self.algorithm == "HS256":
+                await self._initialize_symmetric_key()
+            else:
+                await self._initialize_asymmetric_keys()
+            
+            logger.info("KeyManager initialization completed")
+            return True
+            
+        except Exception as e:
+            logger.error(f"Failed to initialize KeyManager: {e}")
+            return False
+    
+    async def _initialize_symmetric_key(self):
+        """Initialize symmetric key (HS256)"""
+        if self.secret_key:
+            # Use configured key
+            self._secret_key = self.secret_key.encode()
+            logger.info("Loaded symmetric key from configuration")
+        else:
+            # Generate new key
+            self._secret_key = await self.generate_symmetric_key()
+            logger.info("Generated new symmetric key")
+        
+        self._key_generated_at = datetime.utcnow()
+    
+    async def _initialize_asymmetric_keys(self):
+        """Initialize asymmetric key pair (RS256/ES256)"""
+        # Try to load keys from files
+        if await self._load_keys_from_files():
+            logger.info("Loaded asymmetric keys from files")
+            return
+        
+        # Try to load from environment variables
+        if await self._load_keys_from_env():
+            logger.info("Loaded asymmetric keys from environment")
+            return
+        
+        # Generate new key pair
+        await self.generate_key_pair()
+        logger.info("Generated new asymmetric key pair")
+    
+    async def _load_keys_from_files(self) -> bool:
+        """Load keys from files"""
+        try:
+            if not self.private_key_path or not self.public_key_path:
+                return False
+            
+            private_path = Path(self.private_key_path)
+            public_path = Path(self.public_key_path)
+            
+            if not (private_path.exists() and public_path.exists()):
+                return False
+            
+            # Read private key
+            with open(private_path, 'rb') as f:
+                private_key_data = f.read()
+            self._private_key = serialization.load_pem_private_key(
+                private_key_data, password=None, backend=default_backend()
+            )
+            
+            # Read public key
+            with open(public_path, 'rb') as f:
+                public_key_data = f.read()
+            self._public_key = serialization.load_pem_public_key(
+                public_key_data, backend=default_backend()
+            )
+            
+            # Get key generation time (using file modification time)
+            self._key_generated_at = datetime.fromtimestamp(private_path.stat().st_mtime)
+            
+            return True
+            
+        except Exception as e:
+            logger.error(f"Failed to load keys from files: {e}")
+            return False
+    
+    async def _load_keys_from_env(self) -> bool:
+        """Load keys from environment variables"""
+        try:
+            private_key_env = os.getenv('JWT_PRIVATE_KEY')
+            public_key_env = os.getenv('JWT_PUBLIC_KEY')
+            
+            if not (private_key_env and public_key_env):
+                return False
+            
+            # Parse private key
+            self._private_key = serialization.load_pem_private_key(
+                private_key_env.encode(), password=None, backend=default_backend()
+            )
+            
+            # Parse public key
+            self._public_key = serialization.load_pem_public_key(
+                public_key_env.encode(), backend=default_backend()
+            )
+            
+            self._key_generated_at = datetime.utcnow()
+            return True
+            
+        except Exception as e:
+            logger.error(f"Failed to load keys from environment: {e}")
+            return False
+    
+    async def generate_symmetric_key(self, length: int = 32) -> bytes:
+        """Generate symmetric key
+        
+        Args:
+            length: Key length (bytes), default 32 bytes (256 bits)
+            
+        Returns:
+            Generated key
+        """
+        return secrets.token_bytes(length)
+    
+    async def generate_key_pair(self) -> Tuple[bytes, bytes]:
+        """Generate asymmetric key pair
+        
+        Returns:
+            (private key PEM, public key PEM) tuple
+        """
+        try:
+            if self.algorithm == "RS256":
+                private_key = rsa.generate_private_key(
+                    public_exponent=65537,
+                    key_size=2048,
+                    backend=default_backend()
+                )
+            elif self.algorithm == "ES256":
+                private_key = ec.generate_private_key(
+                    ec.SECP256R1(), backend=default_backend()
+                )
+            else:
+                raise ValueError(f"Unsupported algorithm for key generation: {self.algorithm}")
+            
+            # Get public key
+            public_key = private_key.public_key()
+            
+            # Serialize private key
+            private_pem = private_key.private_bytes(
+                encoding=serialization.Encoding.PEM,
+                format=serialization.PrivateFormat.PKCS8,
+                encryption_algorithm=serialization.NoEncryption()
+            )
+            
+            # Serialize public key
+            public_pem = public_key.public_bytes(
+                encoding=serialization.Encoding.PEM,
+                format=serialization.PublicFormat.SubjectPublicKeyInfo
+            )
+            
+            # Store keys
+            self._private_key = private_key
+            self._public_key = public_key
+            self._key_generated_at = datetime.utcnow()
+            
+            # If file paths are configured, save to files
+            if self.private_key_path and self.public_key_path:
+                await self._save_keys_to_files(private_pem, public_pem)
+            
+            logger.info(f"Generated new {self.algorithm} key pair")
+            return private_pem, public_pem
+            
+        except Exception as e:
+            logger.error(f"Failed to generate key pair: {e}")
+            raise
+    
+    async def _save_keys_to_files(self, private_pem: bytes, public_pem: bytes):
+        """Save keys to files"""
+        try:
+            # Ensure directories exist
+            private_path = Path(self.private_key_path)
+            public_path = Path(self.public_key_path)
+            
+            private_path.parent.mkdir(parents=True, exist_ok=True)
+            public_path.parent.mkdir(parents=True, exist_ok=True)
+            
+            # Save private key (set secure permissions)
+            with open(private_path, 'wb') as f:
+                f.write(private_pem)
+            os.chmod(private_path, 0o600)  # Only owner can read/write
+            
+            # Save public key
+            with open(public_path, 'wb') as f:
+                f.write(public_pem)
+            os.chmod(public_path, 0o644)  # Owner read/write, others read only
+            
+            logger.info(f"Saved keys to files: {private_path}, {public_path}")
+            
+        except Exception as e:
+            logger.error(f"Failed to save keys to files: {e}")
+            raise
+    
+    def get_private_key(self):
+        """Get private key for signing"""
+        if self.algorithm == "HS256":
+            return self._secret_key
+        else:
+            return self._private_key
+    
+    def get_public_key(self):
+        """Get public key for verification"""
+        if self.algorithm == "HS256":
+            return self._secret_key
+        else:
+            return self._public_key
+    
+    def get_algorithm(self) -> str:
+        """Get signing algorithm"""
+        return self.algorithm
+    
+    async def is_key_expired(self) -> bool:
+        """Check if key is expired"""
+        if not self._key_generated_at:
+            return True
+        
+        expiry_time = self._key_generated_at + timedelta(seconds=self.key_rotation_interval)
+        return datetime.utcnow() > expiry_time
+    
+    async def rotate_keys(self) -> bool:
+        """Rotate keys"""
+        try:
+            logger.info("Starting key rotation")
+            
+            if self.algorithm == "HS256":
+                # Generate new symmetric key
+                self._secret_key = await self.generate_symmetric_key()
+                self._key_generated_at = datetime.utcnow()
+            else:
+                # Generate new asymmetric key pair
+                await self.generate_key_pair()
+            
+            logger.info("Key rotation completed successfully")
+            return True
+            
+        except Exception as e:
+            logger.error(f"Key rotation failed: {e}")
+            return False
+    
+    async def get_key_info(self) -> dict:
+        """Get key information"""
+        return {
+            "algorithm": self.algorithm,
+            "key_generated_at": self._key_generated_at.isoformat() if self._key_generated_at else None,
+            "key_expires_at": (
+                self._key_generated_at + timedelta(seconds=self.key_rotation_interval)
+            ).isoformat() if self._key_generated_at else None,
+            "is_expired": await self.is_key_expired(),
+            "has_private_key": self._private_key is not None or self._secret_key is not None,
+            "has_public_key": self._public_key is not None or self._secret_key is not None
+        }
+    
+    async def export_public_key_pem(self) -> Optional[str]:
+        """Export public key in PEM format"""
+        if self.algorithm == "HS256":
+            return None  # Symmetric key not exported
+        
+        if not self._public_key:
+            return None
+        
+        try:
+            public_pem = self._public_key.public_bytes(
+                encoding=serialization.Encoding.PEM,
+                format=serialization.PublicFormat.SubjectPublicKeyInfo
+            )
+            return public_pem.decode()
+            
+        except Exception as e:
+            logger.error(f"Failed to export public key: {e}")
+            return None

doris_mcp_server/auth/oauth_client.py

@@ -0,0 +1,536 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+OAuth 2.0/OIDC Client Manager
+Provides OAuth authentication client implementation with PKCE and OIDC support
+"""
+
+import base64
+import hashlib
+import secrets
+import uuid
+from datetime import datetime, timedelta
+from typing import Dict, Optional, Any, Tuple
+from urllib.parse import urlencode, parse_qs, urlparse
+import asyncio
+import json
+
+try:
+    import aiohttp
+except ImportError:
+    raise ImportError("aiohttp is required for OAuth functionality. Install with: pip install aiohttp")
+
+from .oauth_types import (
+    OAuthProvider, OAuthState, OAuthTokens, OAuthUserInfo, 
+    OIDCDiscovery, OAuthError, OAuthProviderConfig, OAUTH_PROVIDERS
+)
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class OAuthStateManager:
+    """Manages OAuth state parameters for CSRF protection"""
+    
+    def __init__(self, state_expiry: int = 600):
+        """Initialize state manager
+        
+        Args:
+            state_expiry: State expiry time in seconds
+        """
+        self.state_expiry = state_expiry
+        self._states: Dict[str, OAuthState] = {}
+        self._cleanup_task = None
+        
+        logger.info("OAuthStateManager initialized")
+    
+    async def start(self):
+        """Start periodic cleanup task"""
+        self._cleanup_task = asyncio.create_task(self._periodic_cleanup())
+        logger.info("OAuth state manager started")
+    
+    async def stop(self):
+        """Stop periodic cleanup task"""
+        if self._cleanup_task:
+            self._cleanup_task.cancel()
+            try:
+                await self._cleanup_task
+            except asyncio.CancelledError:
+                pass
+        logger.info("OAuth state manager stopped")
+    
+    def create_state(self, redirect_uri: str, pkce_enabled: bool = True, 
+                    nonce_enabled: bool = True) -> OAuthState:
+        """Create new OAuth state
+        
+        Args:
+            redirect_uri: OAuth redirect URI
+            pkce_enabled: Whether to enable PKCE
+            nonce_enabled: Whether to enable nonce (for OIDC)
+            
+        Returns:
+            OAuth state object
+        """
+        state = secrets.token_urlsafe(32)
+        nonce = secrets.token_urlsafe(32) if nonce_enabled else None
+        
+        pkce_verifier = None
+        pkce_challenge = None
+        if pkce_enabled:
+            pkce_verifier = base64.urlsafe_b64encode(secrets.token_bytes(32)).decode('utf-8').rstrip('=')
+            challenge_bytes = hashlib.sha256(pkce_verifier.encode()).digest()
+            pkce_challenge = base64.urlsafe_b64encode(challenge_bytes).decode('utf-8').rstrip('=')
+        
+        oauth_state = OAuthState(
+            state=state,
+            nonce=nonce,
+            pkce_verifier=pkce_verifier,
+            pkce_challenge=pkce_challenge,
+            redirect_uri=redirect_uri,
+            created_at=datetime.utcnow(),
+            expires_at=datetime.utcnow() + timedelta(seconds=self.state_expiry)
+        )
+        
+        self._states[state] = oauth_state
+        logger.debug(f"Created OAuth state: {state}")
+        return oauth_state
+    
+    def get_state(self, state: str) -> Optional[OAuthState]:
+        """Get OAuth state by state parameter
+        
+        Args:
+            state: State parameter
+            
+        Returns:
+            OAuth state object or None if not found/expired
+        """
+        oauth_state = self._states.get(state)
+        if oauth_state and oauth_state.expires_at > datetime.utcnow():
+            return oauth_state
+        elif oauth_state:
+            # Remove expired state
+            del self._states[state]
+            logger.debug(f"Removed expired OAuth state: {state}")
+        return None
+    
+    def consume_state(self, state: str) -> Optional[OAuthState]:
+        """Get and remove OAuth state
+        
+        Args:
+            state: State parameter
+            
+        Returns:
+            OAuth state object or None if not found/expired
+        """
+        oauth_state = self.get_state(state)
+        if oauth_state:
+            del self._states[state]
+            logger.debug(f"Consumed OAuth state: {state}")
+        return oauth_state
+    
+    async def _periodic_cleanup(self):
+        """Periodic cleanup of expired states"""
+        while True:
+            try:
+                await asyncio.sleep(300)  # Clean up every 5 minutes
+                current_time = datetime.utcnow()
+                expired_states = [
+                    state for state, oauth_state in self._states.items()
+                    if oauth_state.expires_at <= current_time
+                ]
+                
+                for state in expired_states:
+                    del self._states[state]
+                
+                if expired_states:
+                    logger.info(f"Cleaned up {len(expired_states)} expired OAuth states")
+                    
+            except asyncio.CancelledError:
+                break
+            except Exception as e:
+                logger.error(f"Error during OAuth state cleanup: {e}")
+
+
+class OAuthClient:
+    """OAuth 2.0/OIDC Client implementation"""
+    
+    def __init__(self, config):
+        """Initialize OAuth client
+        
+        Args:
+            config: DorisConfig with OAuth configuration
+        """
+        self.config = config
+        
+        # Access OAuth settings through security configuration
+        if hasattr(config, 'security'):
+            security_config = config.security
+        else:
+            security_config = config
+            
+        self.enabled = security_config.oauth_enabled
+        if not self.enabled:
+            logger.info("OAuth client disabled by configuration")
+            return
+            
+        # Build provider configuration
+        self.provider_config = self._build_provider_config(security_config)
+        self.state_manager = OAuthStateManager(security_config.oauth_state_expiry)
+        
+        # HTTP client session
+        self._session: Optional[aiohttp.ClientSession] = None
+        
+        # Discovery cache
+        self._discovery_cache: Optional[OIDCDiscovery] = None
+        self._discovery_cache_time: Optional[datetime] = None
+        
+        logger.info(f"OAuthClient initialized for provider: {self.provider_config.provider.value}")
+    
+    def _build_provider_config(self, security_config) -> OAuthProviderConfig:
+        """Build OAuth provider configuration
+        
+        Args:
+            security_config: Security configuration object
+            
+        Returns:
+            OAuth provider configuration
+        """
+        try:
+            provider = OAuthProvider(security_config.oauth_provider)
+        except ValueError:
+            provider = OAuthProvider.CUSTOM
+        
+        # Get default configuration for known providers
+        defaults = OAUTH_PROVIDERS.get(provider, {})
+        
+        return OAuthProviderConfig(
+            provider=provider,
+            client_id=security_config.oauth_client_id,
+            client_secret=security_config.oauth_client_secret,
+            redirect_uri=security_config.oauth_redirect_uri,
+            scopes=security_config.oauth_scopes or defaults.get("scopes", ["openid", "email", "profile"]),
+            
+            # Endpoints (use configured or defaults)
+            authorization_endpoint=security_config.oauth_authorization_endpoint or defaults.get("authorization_endpoint", ""),
+            token_endpoint=security_config.oauth_token_endpoint or defaults.get("token_endpoint", ""),
+            userinfo_endpoint=security_config.oauth_userinfo_endpoint or defaults.get("userinfo_endpoint"),
+            jwks_uri=security_config.oauth_jwks_uri or defaults.get("jwks_uri"),
+            
+            # Discovery
+            discovery_url=security_config.oidc_discovery_url or defaults.get("discovery_url"),
+            
+            # Settings
+            pkce_enabled=security_config.oauth_pkce_enabled,
+            nonce_enabled=security_config.oauth_nonce_enabled,
+            
+            # User mapping
+            user_id_claim=security_config.oauth_user_id_claim or defaults.get("user_id_claim", "sub"),
+            email_claim=security_config.oauth_email_claim or defaults.get("email_claim", "email"),
+            name_claim=security_config.oauth_name_claim or defaults.get("name_claim", "name"),
+            roles_claim=security_config.oauth_roles_claim,
+            default_roles=security_config.oauth_default_roles
+        )
+    
+    async def initialize(self) -> bool:
+        """Initialize OAuth client
+        
+        Returns:
+            True if initialization successful
+        """
+        if not self.enabled:
+            return True
+            
+        try:
+            # Create HTTP session
+            self._session = aiohttp.ClientSession()
+            
+            # Start state manager
+            await self.state_manager.start()
+            
+            # Perform OIDC discovery if configured
+            if self.provider_config.discovery_url:
+                await self._discover_oidc_endpoints()
+            
+            logger.info("OAuth client initialization completed")
+            return True
+            
+        except Exception as e:
+            logger.error(f"Failed to initialize OAuth client: {e}")
+            return False
+    
+    async def shutdown(self):
+        """Shutdown OAuth client"""
+        if not self.enabled:
+            return
+            
+        try:
+            # Stop state manager
+            await self.state_manager.stop()
+            
+            # Close HTTP session
+            if self._session:
+                await self._session.close()
+            
+            logger.info("OAuth client shutdown completed")
+            
+        except Exception as e:
+            logger.error(f"Error during OAuth client shutdown: {e}")
+    
+    async def _discover_oidc_endpoints(self):
+        """Discover OIDC endpoints using discovery URL"""
+        try:
+            # Check cache first
+            if (self._discovery_cache and self._discovery_cache_time and 
+                datetime.utcnow() - self._discovery_cache_time < timedelta(hours=1)):
+                return self._discovery_cache
+            
+            logger.info(f"Discovering OIDC endpoints: {self.provider_config.discovery_url}")
+            
+            async with self._session.get(self.provider_config.discovery_url) as response:
+                response.raise_for_status()
+                data = await response.json()
+            
+            discovery = OIDCDiscovery(
+                issuer=data["issuer"],
+                authorization_endpoint=data["authorization_endpoint"],
+                token_endpoint=data["token_endpoint"],
+                userinfo_endpoint=data.get("userinfo_endpoint"),
+                jwks_uri=data.get("jwks_uri"),
+                scopes_supported=data.get("scopes_supported"),
+                response_types_supported=data.get("response_types_supported"),
+                subject_types_supported=data.get("subject_types_supported"),
+                id_token_signing_alg_values_supported=data.get("id_token_signing_alg_values_supported")
+            )
+            
+            # Update provider configuration with discovered endpoints
+            if not self.provider_config.authorization_endpoint:
+                self.provider_config.authorization_endpoint = discovery.authorization_endpoint
+            if not self.provider_config.token_endpoint:
+                self.provider_config.token_endpoint = discovery.token_endpoint
+            if not self.provider_config.userinfo_endpoint:
+                self.provider_config.userinfo_endpoint = discovery.userinfo_endpoint
+            if not self.provider_config.jwks_uri:
+                self.provider_config.jwks_uri = discovery.jwks_uri
+            
+            # Cache discovery result
+            self._discovery_cache = discovery
+            self._discovery_cache_time = datetime.utcnow()
+            
+            logger.info("OIDC endpoint discovery completed successfully")
+            return discovery
+            
+        except Exception as e:
+            logger.error(f"OIDC endpoint discovery failed: {e}")
+            raise
+    
+    def build_authorization_url(self) -> Tuple[str, OAuthState]:
+        """Build OAuth authorization URL
+        
+        Returns:
+            Tuple of (authorization_url, oauth_state)
+        """
+        if not self.enabled:
+            raise ValueError("OAuth client is not enabled")
+            
+        # Create state for CSRF protection
+        oauth_state = self.state_manager.create_state(
+            redirect_uri=self.provider_config.redirect_uri,
+            pkce_enabled=self.provider_config.pkce_enabled,
+            nonce_enabled=self.provider_config.nonce_enabled
+        )
+        
+        # Build authorization parameters
+        params = {
+            'response_type': 'code',
+            'client_id': self.provider_config.client_id,
+            'redirect_uri': self.provider_config.redirect_uri,
+            'scope': ' '.join(self.provider_config.scopes),
+            'state': oauth_state.state
+        }
+        
+        # Add PKCE challenge
+        if oauth_state.pkce_challenge:
+            params['code_challenge'] = oauth_state.pkce_challenge
+            params['code_challenge_method'] = 'S256'
+        
+        # Add nonce for OIDC
+        if oauth_state.nonce:
+            params['nonce'] = oauth_state.nonce
+        
+        # Build URL
+        authorization_url = f"{self.provider_config.authorization_endpoint}?{urlencode(params)}"
+        
+        logger.info(f"Built OAuth authorization URL for state: {oauth_state.state}")
+        return authorization_url, oauth_state
+    
+    async def exchange_code_for_tokens(self, code: str, state: str) -> Tuple[OAuthTokens, OAuthState]:
+        """Exchange authorization code for tokens
+        
+        Args:
+            code: Authorization code
+            state: State parameter
+            
+        Returns:
+            Tuple of (OAuth tokens, OAuth state)
+            
+        Raises:
+            ValueError: If state is invalid or exchange fails
+        """
+        if not self.enabled:
+            raise ValueError("OAuth client is not enabled")
+        
+        # Validate and consume state
+        oauth_state = self.state_manager.consume_state(state)
+        if not oauth_state:
+            raise ValueError("Invalid or expired state parameter")
+        
+        try:
+            # Prepare token request
+            data = {
+                'grant_type': 'authorization_code',
+                'client_id': self.provider_config.client_id,
+                'client_secret': self.provider_config.client_secret,
+                'code': code,
+                'redirect_uri': oauth_state.redirect_uri
+            }
+            
+            # Add PKCE verifier
+            if oauth_state.pkce_verifier:
+                data['code_verifier'] = oauth_state.pkce_verifier
+            
+            # Make token request
+            async with self._session.post(
+                self.provider_config.token_endpoint,
+                data=data,
+                headers={'Content-Type': 'application/x-www-form-urlencoded'}
+            ) as response:
+                response_data = await response.json()
+                
+                if response.status != 200:
+                    error_msg = response_data.get('error_description', response_data.get('error', 'Token exchange failed'))
+                    raise ValueError(f"Token exchange failed: {error_msg}")
+                
+                tokens = OAuthTokens(
+                    access_token=response_data['access_token'],
+                    token_type=response_data.get('token_type', 'Bearer'),
+                    expires_in=response_data.get('expires_in'),
+                    refresh_token=response_data.get('refresh_token'),
+                    scope=response_data.get('scope'),
+                    id_token=response_data.get('id_token')
+                )
+                
+                logger.info("Successfully exchanged authorization code for tokens")
+                return tokens, oauth_state
+                
+        except Exception as e:
+            logger.error(f"Token exchange failed: {e}")
+            raise ValueError(f"Token exchange failed: {str(e)}")
+    
+    async def get_user_info(self, tokens: OAuthTokens) -> OAuthUserInfo:
+        """Get user information from OAuth provider
+        
+        Args:
+            tokens: OAuth tokens
+            
+        Returns:
+            OAuth user information
+        """
+        if not self.enabled:
+            raise ValueError("OAuth client is not enabled")
+        
+        if not self.provider_config.userinfo_endpoint:
+            raise ValueError("Userinfo endpoint not configured")
+        
+        try:
+            # Make userinfo request
+            headers = {'Authorization': f'{tokens.token_type} {tokens.access_token}'}
+            
+            async with self._session.get(
+                self.provider_config.userinfo_endpoint,
+                headers=headers
+            ) as response:
+                response.raise_for_status()
+                user_data = await response.json()
+            
+            # Extract user information using configured claims
+            user_info = OAuthUserInfo(
+                sub=str(user_data.get(self.provider_config.user_id_claim, '')),
+                email=user_data.get(self.provider_config.email_claim),
+                name=user_data.get(self.provider_config.name_claim),
+                given_name=user_data.get('given_name'),
+                family_name=user_data.get('family_name'),
+                picture=user_data.get('picture'),
+                locale=user_data.get('locale'),
+                email_verified=user_data.get('email_verified'),
+                roles=user_data.get(self.provider_config.roles_claim, self.provider_config.default_roles.copy()),
+                raw_claims=user_data
+            )
+            
+            logger.info(f"Retrieved user info for user: {user_info.sub}")
+            return user_info
+            
+        except Exception as e:
+            logger.error(f"Failed to get user info: {e}")
+            raise ValueError(f"Failed to get user info: {str(e)}")
+    
+    async def refresh_tokens(self, refresh_token: str) -> OAuthTokens:
+        """Refresh OAuth tokens
+        
+        Args:
+            refresh_token: Refresh token
+            
+        Returns:
+            New OAuth tokens
+        """
+        if not self.enabled:
+            raise ValueError("OAuth client is not enabled")
+        
+        try:
+            data = {
+                'grant_type': 'refresh_token',
+                'client_id': self.provider_config.client_id,
+                'client_secret': self.provider_config.client_secret,
+                'refresh_token': refresh_token
+            }
+            
+            async with self._session.post(
+                self.provider_config.token_endpoint,
+                data=data,
+                headers={'Content-Type': 'application/x-www-form-urlencoded'}
+            ) as response:
+                response_data = await response.json()
+                
+                if response.status != 200:
+                    error_msg = response_data.get('error_description', response_data.get('error', 'Token refresh failed'))
+                    raise ValueError(f"Token refresh failed: {error_msg}")
+                
+                tokens = OAuthTokens(
+                    access_token=response_data['access_token'],
+                    token_type=response_data.get('token_type', 'Bearer'),
+                    expires_in=response_data.get('expires_in'),
+                    refresh_token=response_data.get('refresh_token', refresh_token),  # Keep old if not provided
+                    scope=response_data.get('scope'),
+                    id_token=response_data.get('id_token')
+                )
+                
+                logger.info("Successfully refreshed OAuth tokens")
+                return tokens
+                
+        except Exception as e:
+            logger.error(f"Token refresh failed: {e}")
+            raise ValueError(f"Token refresh failed: {str(e)}")

doris_mcp_server/auth/oauth_handlers.py

@@ -0,0 +1,312 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+OAuth HTTP Handlers
+Provides HTTP endpoints for OAuth authentication flow
+"""
+
+from typing import Dict, Any
+from urllib.parse import parse_qs, urlparse
+import json
+
+from starlette.responses import JSONResponse, RedirectResponse, HTMLResponse
+from starlette.requests import Request
+
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class OAuthHandlers:
+    """OAuth HTTP request handlers"""
+    
+    def __init__(self, security_manager):
+        """Initialize OAuth handlers
+        
+        Args:
+            security_manager: DorisSecurityManager instance
+        """
+        self.security_manager = security_manager
+        logger.info("OAuth handlers initialized")
+    
+    async def handle_login(self, request: Request) -> JSONResponse:
+        """Handle OAuth login initiation
+        
+        Returns JSON with authorization URL and state
+        """
+        try:
+            # Check if OAuth is enabled
+            oauth_info = self.security_manager.get_oauth_provider_info()
+            if not oauth_info.get("enabled"):
+                return JSONResponse(
+                    {"error": "OAuth authentication is not enabled"},
+                    status_code=400
+                )
+            
+            # Get authorization URL
+            authorization_url, state = self.security_manager.get_oauth_authorization_url()
+            
+            return JSONResponse({
+                "authorization_url": authorization_url,
+                "state": state,
+                "provider": oauth_info.get("provider"),
+                "message": "Navigate to authorization_url to complete OAuth login"
+            })
+            
+        except Exception as e:
+            logger.error(f"OAuth login initiation failed: {e}")
+            return JSONResponse(
+                {"error": f"OAuth login failed: {str(e)}"},
+                status_code=500
+            )
+    
+    async def handle_callback(self, request: Request) -> JSONResponse:
+        """Handle OAuth callback
+        
+        Processes the OAuth callback and returns authentication result
+        """
+        try:
+            # Get query parameters
+            query_params = dict(request.query_params)
+            
+            # Check for error in callback
+            if "error" in query_params:
+                error_description = query_params.get("error_description", "Unknown error")
+                logger.warning(f"OAuth callback error: {query_params['error']} - {error_description}")
+                return JSONResponse(
+                    {
+                        "error": query_params["error"],
+                        "error_description": error_description,
+                        "error_uri": query_params.get("error_uri")
+                    },
+                    status_code=400
+                )
+            
+            # Extract required parameters
+            code = query_params.get("code")
+            state = query_params.get("state")
+            
+            if not code or not state:
+                return JSONResponse(
+                    {"error": "Missing required parameters: code and state"},
+                    status_code=400
+                )
+            
+            # Handle OAuth callback
+            auth_context = await self.security_manager.handle_oauth_callback(code, state)
+            
+            # Return successful authentication response
+            return JSONResponse({
+                "success": True,
+                "user_id": auth_context.user_id,
+                "roles": auth_context.roles,
+                "permissions": auth_context.permissions,
+                "security_level": auth_context.security_level.value,
+                "session_id": auth_context.session_id,
+                "message": "OAuth authentication successful"
+            })
+            
+        except Exception as e:
+            logger.error(f"OAuth callback handling failed: {e}")
+            return JSONResponse(
+                {"error": f"OAuth callback failed: {str(e)}"},
+                status_code=500
+            )
+    
+    async def handle_provider_info(self, request: Request) -> JSONResponse:
+        """Handle OAuth provider information request
+        
+        Returns information about the configured OAuth provider
+        """
+        try:
+            provider_info = self.security_manager.get_oauth_provider_info()
+            return JSONResponse(provider_info)
+            
+        except Exception as e:
+            logger.error(f"Failed to get OAuth provider info: {e}")
+            return JSONResponse(
+                {"error": f"Failed to get provider info: {str(e)}"},
+                status_code=500
+            )
+    
+    async def handle_demo_page(self, request: Request) -> HTMLResponse:
+        """Handle OAuth demo page
+        
+        Returns a simple HTML page for testing OAuth flow
+        """
+        oauth_info = self.security_manager.get_oauth_provider_info()
+        if not oauth_info.get("enabled"):
+            return HTMLResponse("""
+                <html>
+                    <head><title>OAuth Demo</title></head>
+                    <body>
+                        <h1>OAuth Demo</h1>
+                        <p style="color: red;">OAuth authentication is not enabled.</p>
+                        <p>Please configure OAuth settings in your security configuration.</p>
+                    </body>
+                </html>
+            """)
+        
+        html_content = f"""
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Doris MCP Server - OAuth Demo</title>
+    <style>
+        body {{
+            font-family: Arial, sans-serif;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 20px;
+        }}
+        .info {{
+            background-color: #f0f8ff;
+            padding: 15px;
+            border-left: 4px solid #0066cc;
+            margin: 20px 0;
+        }}
+        .error {{
+            background-color: #ffe6e6;
+            padding: 15px;
+            border-left: 4px solid #cc0000;
+            margin: 20px 0;
+        }}
+        .success {{
+            background-color: #e6ffe6;
+            padding: 15px;
+            border-left: 4px solid #00cc00;
+            margin: 20px 0;
+        }}
+        button {{
+            background-color: #0066cc;
+            color: white;
+            padding: 10px 20px;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 16px;
+        }}
+        button:hover {{
+            background-color: #0052a3;
+        }}
+        pre {{
+            background-color: #f5f5f5;
+            padding: 10px;
+            border-radius: 4px;
+            overflow-x: auto;
+        }}
+    </style>
+</head>
+<body>
+    <h1>Doris MCP Server - OAuth Demo</h1>
+    
+    <div class="info">
+        <h3>OAuth Configuration</h3>
+        <p><strong>Provider:</strong> {oauth_info.get('provider', 'N/A')}</p>
+        <p><strong>Client ID:</strong> {oauth_info.get('client_id', 'N/A')}</p>
+        <p><strong>Scopes:</strong> {', '.join(oauth_info.get('scopes', []))}</p>
+        <p><strong>PKCE Enabled:</strong> {oauth_info.get('pkce_enabled', False)}</p>
+    </div>
+    
+    <div>
+        <h3>OAuth Authentication Test</h3>
+        <p>Click the button below to start OAuth authentication flow:</p>
+        <button onclick="startOAuthFlow()">Start OAuth Login</button>
+    </div>
+    
+    <div id="result" style="margin-top: 20px;"></div>
+    
+    <div>
+        <h3>API Endpoints</h3>
+        <ul>
+            <li><code>GET /auth/login</code> - Initiate OAuth login</li>
+            <li><code>GET /auth/callback</code> - OAuth callback handler</li>
+            <li><code>GET /auth/provider</code> - Provider information</li>
+        </ul>
+    </div>
+
+    <script>
+        async function startOAuthFlow() {{
+            const resultDiv = document.getElementById('result');
+            resultDiv.innerHTML = '<div class="info">Initiating OAuth flow...</div>';
+            
+            try {{
+                const response = await fetch('/auth/login');
+                const data = await response.json();
+                
+                if (response.ok) {{
+                    resultDiv.innerHTML = `
+                        <div class="success">
+                            <h4>OAuth URL Generated Successfully</h4>
+                            <p><strong>State:</strong> ${{data.state}}</p>
+                            <p><strong>Provider:</strong> ${{data.provider}}</p>
+                            <p><a href="${{data.authorization_url}}" target="_blank">Click here to authenticate</a></p>
+                            <p><em>Note: After authentication, you will be redirected to the callback URL.</em></p>
+                        </div>
+                    `;
+                    
+                    // Automatically redirect to OAuth provider
+                    // window.open(data.authorization_url, '_blank');
+                }} else {{
+                    resultDiv.innerHTML = `
+                        <div class="error">
+                            <h4>Error</h4>
+                            <p>${{data.error}}</p>
+                        </div>
+                    `;
+                }}
+            }} catch (error) {{
+                resultDiv.innerHTML = `
+                    <div class="error">
+                        <h4>Network Error</h4>
+                        <p>${{error.message}}</p>
+                    </div>
+                `;
+            }}
+        }}
+        
+        // Handle OAuth callback result if present in URL
+        window.addEventListener('load', function() {{
+            const urlParams = new URLSearchParams(window.location.search);
+            if (urlParams.has('code') && urlParams.has('state')) {{
+                const resultDiv = document.getElementById('result');
+                resultDiv.innerHTML = `
+                    <div class="success">
+                        <h4>OAuth Callback Received</h4>
+                        <p>Code: ${{urlParams.get('code')}}</p>
+                        <p>State: ${{urlParams.get('state')}}</p>
+                        <p>The authentication was successful!</p>
+                    </div>
+                `;
+            }} else if (urlParams.has('error')) {{
+                const resultDiv = document.getElementById('result');
+                resultDiv.innerHTML = `
+                    <div class="error">
+                        <h4>OAuth Error</h4>
+                        <p>Error: ${{urlParams.get('error')}}</p>
+                        <p>Description: ${{urlParams.get('error_description') || 'No description'}}</p>
+                    </div>
+                `;
+            }}
+        }});
+    </script>
+</body>
+</html>
+        """
+        
+        return HTMLResponse(html_content)

doris_mcp_server/auth/oauth_provider.py

@@ -0,0 +1,289 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+OAuth Authentication Provider
+Integrates OAuth 2.0/OIDC authentication with the existing authentication framework
+"""
+
+from typing import Dict, Any, Optional, Tuple
+from datetime import datetime
+
+from .oauth_client import OAuthClient
+from .oauth_types import OAuthTokens, OAuthUserInfo, OAuthState
+from ..utils.security import AuthContext, SecurityLevel
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class OAuthAuthenticationProvider:
+    """OAuth authentication provider for Doris MCP Server"""
+    
+    def __init__(self, config):
+        """Initialize OAuth authentication provider
+        
+        Args:
+            config: DorisConfig with OAuth configuration
+        """
+        self.config = config
+        self.oauth_client = OAuthClient(config)
+        self.enabled = self.oauth_client.enabled
+        
+        logger.info(f"OAuthAuthenticationProvider initialized (enabled: {self.enabled})")
+    
+    async def initialize(self) -> bool:
+        """Initialize OAuth authentication provider
+        
+        Returns:
+            True if initialization successful
+        """
+        if not self.enabled:
+            return True
+            
+        success = await self.oauth_client.initialize()
+        if success:
+            logger.info("OAuth authentication provider initialized successfully")
+        else:
+            logger.error("Failed to initialize OAuth authentication provider")
+        return success
+    
+    async def shutdown(self):
+        """Shutdown OAuth authentication provider"""
+        if self.enabled:
+            await self.oauth_client.shutdown()
+            logger.info("OAuth authentication provider shutdown completed")
+    
+    def get_authorization_url(self) -> Tuple[str, str]:
+        """Get OAuth authorization URL
+        
+        Returns:
+            Tuple of (authorization_url, state)
+        """
+        if not self.enabled:
+            raise ValueError("OAuth authentication is not enabled")
+            
+        authorization_url, oauth_state = self.oauth_client.build_authorization_url()
+        return authorization_url, oauth_state.state
+    
+    async def handle_callback(self, code: str, state: str) -> AuthContext:
+        """Handle OAuth callback and create authentication context
+        
+        Args:
+            code: Authorization code from OAuth provider
+            state: State parameter for CSRF protection
+            
+        Returns:
+            AuthContext for the authenticated user
+            
+        Raises:
+            ValueError: If authentication fails
+        """
+        if not self.enabled:
+            raise ValueError("OAuth authentication is not enabled")
+        
+        try:
+            # Exchange code for tokens
+            tokens, oauth_state = await self.oauth_client.exchange_code_for_tokens(code, state)
+            
+            # Get user information
+            user_info = await self.oauth_client.get_user_info(tokens)
+            
+            # Create authentication context
+            auth_context = await self._create_auth_context(user_info, tokens)
+            
+            logger.info(f"OAuth authentication successful for user: {auth_context.user_id}")
+            return auth_context
+            
+        except Exception as e:
+            logger.error(f"OAuth callback handling failed: {e}")
+            raise ValueError(f"OAuth authentication failed: {str(e)}")
+    
+    async def authenticate_with_token(self, access_token: str) -> AuthContext:
+        """Authenticate using OAuth access token
+        
+        Args:
+            access_token: OAuth access token
+            
+        Returns:
+            AuthContext for the authenticated user
+        """
+        if not self.enabled:
+            raise ValueError("OAuth authentication is not enabled")
+        
+        try:
+            # Create token object
+            tokens = OAuthTokens(access_token=access_token)
+            
+            # Get user information
+            user_info = await self.oauth_client.get_user_info(tokens)
+            
+            # Create authentication context
+            auth_context = await self._create_auth_context(user_info, tokens)
+            
+            logger.info(f"OAuth token authentication successful for user: {auth_context.user_id}")
+            return auth_context
+            
+        except Exception as e:
+            logger.error(f"OAuth token authentication failed: {e}")
+            raise ValueError(f"OAuth token authentication failed: {str(e)}")
+    
+    async def refresh_authentication(self, refresh_token: str) -> Tuple[AuthContext, str]:
+        """Refresh OAuth authentication
+        
+        Args:
+            refresh_token: OAuth refresh token
+            
+        Returns:
+            Tuple of (AuthContext, new_access_token)
+        """
+        if not self.enabled:
+            raise ValueError("OAuth authentication is not enabled")
+        
+        try:
+            # Refresh tokens
+            tokens = await self.oauth_client.refresh_tokens(refresh_token)
+            
+            # Get updated user information
+            user_info = await self.oauth_client.get_user_info(tokens)
+            
+            # Create authentication context
+            auth_context = await self._create_auth_context(user_info, tokens)
+            
+            logger.info(f"OAuth refresh successful for user: {auth_context.user_id}")
+            return auth_context, tokens.access_token
+            
+        except Exception as e:
+            logger.error(f"OAuth refresh failed: {e}")
+            raise ValueError(f"OAuth refresh failed: {str(e)}")
+    
+    async def _create_auth_context(self, user_info: OAuthUserInfo, tokens: OAuthTokens) -> AuthContext:
+        """Create authentication context from OAuth user info
+        
+        Args:
+            user_info: OAuth user information
+            tokens: OAuth tokens
+            
+        Returns:
+            AuthContext for the user
+        """
+        # Determine security level based on roles or email domain
+        security_level = await self._determine_security_level(user_info)
+        
+        # Map OAuth roles to application permissions
+        permissions = await self._map_permissions(user_info.roles)
+        
+        # Generate session ID
+        session_id = f"oauth_{user_info.sub}_{datetime.utcnow().timestamp()}"
+        
+        return AuthContext(
+            token_id=f"oauth_{user_info.sub}",
+            user_id=user_info.sub,
+            roles=user_info.roles,
+            permissions=permissions,
+            security_level=security_level,
+            session_id=session_id,
+            login_time=datetime.utcnow(),
+            last_activity=datetime.utcnow(),
+            token=""  # OAuth doesn't have raw token, use empty string
+        )
+    
+    async def _determine_security_level(self, user_info: OAuthUserInfo) -> SecurityLevel:
+        """Determine security level for OAuth user
+        
+        Args:
+            user_info: OAuth user information
+            
+        Returns:
+            SecurityLevel for the user
+        """
+        # Check if user has admin roles
+        admin_roles = {"admin", "administrator", "data_admin", "super_admin"}
+        if any(role.lower() in admin_roles for role in user_info.roles):
+            return SecurityLevel.SECRET
+        
+        # Check email domain for internal users
+        if user_info.email:
+            # You can configure trusted domains for internal access
+            trusted_domains = ["yourcompany.com", "internal.org"]  # Configure as needed
+            email_domain = user_info.email.split("@")[-1].lower()
+            if email_domain in trusted_domains:
+                return SecurityLevel.CONFIDENTIAL
+        
+        # Check for special roles
+        elevated_roles = {"data_analyst", "developer", "manager"}
+        if any(role.lower() in elevated_roles for role in user_info.roles):
+            return SecurityLevel.CONFIDENTIAL
+        
+        # Default to internal level for OAuth users
+        return SecurityLevel.INTERNAL
+    
+    async def _map_permissions(self, roles: list[str]) -> list[str]:
+        """Map OAuth roles to application permissions
+        
+        Args:
+            roles: OAuth user roles
+            
+        Returns:
+            List of application permissions
+        """
+        permissions = set()
+        
+        # Role to permission mapping
+        role_permissions = {
+            "admin": ["admin", "read_data", "write_data", "manage_users"],
+            "administrator": ["admin", "read_data", "write_data", "manage_users"],
+            "data_admin": ["admin", "read_data", "write_data"],
+            "super_admin": ["admin", "read_data", "write_data", "manage_users", "system_admin"],
+            "data_analyst": ["read_data", "query_database"],
+            "developer": ["read_data", "query_database", "debug"],
+            "viewer": ["read_data"],
+            "user": ["read_data"],
+            "oauth_user": ["read_data"]  # Default OAuth user permission
+        }
+        
+        # Map roles to permissions
+        for role in roles:
+            role_lower = role.lower()
+            if role_lower in role_permissions:
+                permissions.update(role_permissions[role_lower])
+        
+        # Ensure OAuth users have at least basic permissions
+        if not permissions:
+            permissions.add("read_data")
+        
+        return list(permissions)
+    
+    def get_provider_info(self) -> Dict[str, Any]:
+        """Get OAuth provider information
+        
+        Returns:
+            Provider information dictionary
+        """
+        if not self.enabled:
+            return {"enabled": False}
+        
+        config = self.oauth_client.provider_config
+        return {
+            "enabled": True,
+            "provider": config.provider.value,
+            "client_id": config.client_id,
+            "scopes": config.scopes,
+            "redirect_uri": config.redirect_uri,
+            "pkce_enabled": config.pkce_enabled,
+            "nonce_enabled": config.nonce_enabled
+        }

doris_mcp_server/auth/oauth_types.py

@@ -0,0 +1,196 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+OAuth 2.0/OIDC Type Definitions
+Provides data types and models for OAuth authentication flow
+"""
+
+from dataclasses import dataclass
+from datetime import datetime
+from enum import Enum
+from typing import Dict, Any, Optional, List
+
+
+class OAuthProvider(Enum):
+    """OAuth provider enumeration"""
+    GOOGLE = "google"
+    MICROSOFT = "microsoft"
+    GITHUB = "github"
+    CUSTOM = "custom"
+
+
+class OAuthGrantType(Enum):
+    """OAuth grant type enumeration"""
+    AUTHORIZATION_CODE = "authorization_code"
+    REFRESH_TOKEN = "refresh_token"
+
+
+@dataclass
+class OAuthState:
+    """OAuth state parameter for CSRF protection"""
+    state: str
+    nonce: Optional[str] = None
+    pkce_verifier: Optional[str] = None
+    pkce_challenge: Optional[str] = None
+    redirect_uri: str = ""
+    created_at: datetime = None
+    expires_at: datetime = None
+    
+    def __post_init__(self):
+        if self.created_at is None:
+            self.created_at = datetime.utcnow()
+
+
+@dataclass
+class OAuthTokens:
+    """OAuth token response"""
+    access_token: str
+    token_type: str = "Bearer"
+    expires_in: Optional[int] = None
+    refresh_token: Optional[str] = None
+    scope: Optional[str] = None
+    id_token: Optional[str] = None  # OIDC ID token
+    created_at: datetime = None
+    
+    def __post_init__(self):
+        if self.created_at is None:
+            self.created_at = datetime.utcnow()
+
+
+@dataclass
+class OAuthUserInfo:
+    """OAuth/OIDC user information"""
+    sub: str  # Subject identifier
+    email: Optional[str] = None
+    email_verified: Optional[bool] = None
+    name: Optional[str] = None
+    given_name: Optional[str] = None
+    family_name: Optional[str] = None
+    picture: Optional[str] = None
+    locale: Optional[str] = None
+    roles: List[str] = None
+    raw_claims: Dict[str, Any] = None
+    
+    def __post_init__(self):
+        if self.roles is None:
+            self.roles = []
+        if self.raw_claims is None:
+            self.raw_claims = {}
+
+
+@dataclass
+class OIDCDiscovery:
+    """OIDC Discovery document"""
+    issuer: str
+    authorization_endpoint: str
+    token_endpoint: str
+    userinfo_endpoint: Optional[str] = None
+    jwks_uri: Optional[str] = None
+    scopes_supported: List[str] = None
+    response_types_supported: List[str] = None
+    subject_types_supported: List[str] = None
+    id_token_signing_alg_values_supported: List[str] = None
+    
+    def __post_init__(self):
+        if self.scopes_supported is None:
+            self.scopes_supported = ["openid"]
+        if self.response_types_supported is None:
+            self.response_types_supported = ["code"]
+        if self.subject_types_supported is None:
+            self.subject_types_supported = ["public"]
+        if self.id_token_signing_alg_values_supported is None:
+            self.id_token_signing_alg_values_supported = ["RS256"]
+
+
+@dataclass
+class OAuthError:
+    """OAuth error response"""
+    error: str
+    error_description: Optional[str] = None
+    error_uri: Optional[str] = None
+    state: Optional[str] = None
+
+
+@dataclass
+class OAuthProviderConfig:
+    """OAuth provider configuration"""
+    provider: OAuthProvider
+    client_id: str
+    client_secret: str
+    redirect_uri: str
+    scopes: List[str]
+    
+    # Endpoints
+    authorization_endpoint: str
+    token_endpoint: str
+    userinfo_endpoint: Optional[str] = None
+    jwks_uri: Optional[str] = None
+    
+    # Discovery
+    discovery_url: Optional[str] = None
+    
+    # Settings
+    pkce_enabled: bool = True
+    nonce_enabled: bool = True
+    
+    # User mapping
+    user_id_claim: str = "sub"
+    email_claim: str = "email"
+    name_claim: str = "name"
+    roles_claim: str = "roles"
+    default_roles: List[str] = None
+    
+    def __post_init__(self):
+        if self.default_roles is None:
+            self.default_roles = ["oauth_user"]
+
+
+# Pre-defined provider configurations
+OAUTH_PROVIDERS = {
+    OAuthProvider.GOOGLE: {
+        "authorization_endpoint": "https://accounts.google.com/o/oauth2/auth",
+        "token_endpoint": "https://oauth2.googleapis.com/token",
+        "userinfo_endpoint": "https://openidconnect.googleapis.com/v1/userinfo",
+        "jwks_uri": "https://www.googleapis.com/oauth2/v3/certs",
+        "discovery_url": "https://accounts.google.com/.well-known/openid_configuration",
+        "scopes": ["openid", "email", "profile"],
+        "user_id_claim": "sub",
+        "email_claim": "email",
+        "name_claim": "name"
+    },
+    OAuthProvider.MICROSOFT: {
+        "authorization_endpoint": "https://login.microsoftonline.com/common/oauth2/v2.0/authorize",
+        "token_endpoint": "https://login.microsoftonline.com/common/oauth2/v2.0/token",
+        "userinfo_endpoint": "https://graph.microsoft.com/v1.0/me",
+        "jwks_uri": "https://login.microsoftonline.com/common/discovery/v2.0/keys",
+        "discovery_url": "https://login.microsoftonline.com/common/v2.0/.well-known/openid_configuration",
+        "scopes": ["openid", "profile", "email", "User.Read"],
+        "user_id_claim": "sub",
+        "email_claim": "email",
+        "name_claim": "name"
+    },
+    OAuthProvider.GITHUB: {
+        "authorization_endpoint": "https://github.com/login/oauth/authorize",
+        "token_endpoint": "https://github.com/login/oauth/access_token",
+        "userinfo_endpoint": "https://api.github.com/user",
+        "scopes": ["user:email", "read:user"],
+        "user_id_claim": "id",
+        "email_claim": "email",
+        "name_claim": "name"
+    }
+}

doris_mcp_server/auth/token_handlers.py

@@ -0,0 +1,677 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Token Authentication HTTP Handlers
+
+Provides HTTP endpoints for token management including creation, revocation,
+listing, and statistics. Used for administrative token management in HTTP mode.
+"""
+
+import json
+from typing import Dict, Any
+
+from starlette.requests import Request
+from starlette.responses import JSONResponse, HTMLResponse
+
+from ..utils.logger import get_logger
+from ..utils.security import SecurityLevel
+from ..utils.config import DatabaseConfig
+from .token_security_middleware import TokenSecurityMiddleware
+
+
+class TokenHandlers:
+    """Token Authentication HTTP Handlers"""
+    
+    def __init__(self, security_manager, config=None):
+        self.security_manager = security_manager
+        self.logger = get_logger(__name__)
+        
+        # Initialize security middleware if config is provided
+        if config:
+            self.security_middleware = TokenSecurityMiddleware(config)
+        else:
+            self.security_middleware = None
+            self.logger.warning("Token handlers initialized without security middleware - access control disabled")
+    
+    async def handle_create_token(self, request: Request) -> JSONResponse:
+        """Handle token creation request"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                return security_response
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                return JSONResponse({
+                    "error": "Token authentication is not enabled"
+                }, status_code=503)
+            
+            # Parse request data
+            if request.method == "GET":
+                # GET request with query parameters
+                query_params = dict(request.query_params)
+                token_id = query_params.get("token_id")
+                expires_hours_str = query_params.get("expires_hours")
+                description = query_params.get("description", "")
+                custom_token = query_params.get("custom_token")
+                # Database configuration from query params
+                db_config = None
+                if query_params.get("db_host"):
+                    db_config = DatabaseConfig(
+                        host=query_params.get("db_host", "localhost"),
+                        port=int(query_params.get("db_port", "9030")),
+                        user=query_params.get("db_user", "root"),
+                        password=query_params.get("db_password", ""),
+                        database=query_params.get("db_database", "information_schema"),
+                        fe_http_port=int(query_params.get("db_fe_http_port", "8030"))
+                    )
+            else:
+                # POST request with JSON body
+                try:
+                    body = await request.json()
+                except:
+                    return JSONResponse({
+                        "error": "Invalid JSON body"
+                    }, status_code=400)
+                
+                token_id = body.get("token_id")
+                expires_hours_str = body.get("expires_hours")
+                description = body.get("description", "")
+                custom_token = body.get("custom_token")
+                # Database configuration from JSON body
+                db_config = None
+                if body.get("database_config"):
+                    db_data = body["database_config"]
+                    try:
+                        db_config = DatabaseConfig(
+                            host=db_data.get("host", "localhost"),
+                            port=int(db_data.get("port", 9030)),
+                            user=db_data.get("user", "root"),
+                            password=db_data.get("password", ""),
+                            database=db_data.get("database", "information_schema"),
+                            fe_http_port=int(db_data.get("fe_http_port", 8030))
+                        )
+                    except (ValueError, TypeError) as e:
+                        return JSONResponse({
+                            "error": f"Invalid database configuration: {str(e)}"
+                        }, status_code=400)
+            
+            # Validate required fields
+            if not token_id:
+                return JSONResponse({
+                    "error": "token_id is required"
+                }, status_code=400)
+            
+            # Parse expires_hours
+            expires_hours = None
+            if expires_hours_str:
+                try:
+                    expires_hours = int(expires_hours_str)
+                except ValueError:
+                    return JSONResponse({
+                        "error": "expires_hours must be an integer"
+                    }, status_code=400)
+            
+            # Create token using the actual API
+            try:
+                token = await self.security_manager.create_token(
+                    token_id=token_id,
+                    expires_hours=expires_hours,
+                    description=description,
+                    custom_token=custom_token,
+                    database_config=db_config
+                )
+                
+                return JSONResponse({
+                    "success": True,
+                    "token_id": token_id,
+                    "token": token,
+                    "expires_hours": expires_hours,
+                    "description": description,
+                    "message": "Token created successfully"
+                })
+                
+            except Exception as e:
+                self.logger.error(f"Token creation failed: {e}")
+                return JSONResponse({
+                    "error": f"Token creation failed: {str(e)}"
+                }, status_code=400)
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_create_token: {e}")
+            return JSONResponse({
+                "error": f"Internal server error: {str(e)}"
+            }, status_code=500)
+    
+    async def handle_revoke_token(self, request: Request) -> JSONResponse:
+        """Handle token revocation request"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                return security_response
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                return JSONResponse({
+                    "error": "Token authentication is not enabled"
+                }, status_code=503)
+            
+            # Get token_id from query parameters or path
+            token_id = request.query_params.get("token_id")
+            if not token_id and request.method == "DELETE":
+                # Try to get from path: /token/revoke/{token_id}
+                path_parts = str(request.url.path).split("/")
+                if len(path_parts) >= 4:
+                    token_id = path_parts[-1]
+            
+            if not token_id:
+                return JSONResponse({
+                    "error": "token_id is required"
+                }, status_code=400)
+            
+            # Revoke token
+            success = await self.security_manager.revoke_token(token_id)
+            
+            if success:
+                return JSONResponse({
+                    "success": True,
+                    "token_id": token_id,
+                    "message": "Token revoked successfully"
+                })
+            else:
+                return JSONResponse({
+                    "success": False,
+                    "token_id": token_id,
+                    "message": "Token not found or already revoked"
+                }, status_code=404)
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_revoke_token: {e}")
+            return JSONResponse({
+                "error": f"Internal server error: {str(e)}"
+            }, status_code=500)
+    
+    async def handle_list_tokens(self, request: Request) -> JSONResponse:
+        """Handle token listing request"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                return security_response
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                return JSONResponse({
+                    "error": "Token authentication is not enabled"
+                }, status_code=503)
+            
+            # Get tokens list
+            tokens = await self.security_manager.list_tokens()
+            
+            return JSONResponse({
+                "success": True,
+                "count": len(tokens),
+                "tokens": tokens
+            })
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_list_tokens: {e}")
+            return JSONResponse({
+                "error": f"Internal server error: {str(e)}"
+            }, status_code=500)
+    
+    async def handle_token_stats(self, request: Request) -> JSONResponse:
+        """Handle token statistics request"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                return security_response
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                return JSONResponse({
+                    "error": "Token authentication is not enabled"
+                }, status_code=503)
+            
+            # Get token statistics
+            stats = self.security_manager.get_token_stats()
+            
+            return JSONResponse({
+                "success": True,
+                "stats": stats
+            })
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_token_stats: {e}")
+            return JSONResponse({
+                "error": f"Internal server error: {str(e)}"
+            }, status_code=500)
+    
+    async def handle_cleanup_tokens(self, request: Request) -> JSONResponse:
+        """Handle expired tokens cleanup request"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                return security_response
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                return JSONResponse({
+                    "error": "Token authentication is not enabled"
+                }, status_code=503)
+            
+            # Cleanup expired tokens
+            cleaned_count = await self.security_manager.cleanup_expired_tokens()
+            
+            return JSONResponse({
+                "success": True,
+                "cleaned_count": cleaned_count,
+                "message": f"Cleaned up {cleaned_count} expired tokens"
+            })
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_cleanup_tokens: {e}")
+            return JSONResponse({
+                "error": f"Internal server error: {str(e)}"
+            }, status_code=500)
+    
+    async def handle_management_page(self, request: Request) -> HTMLResponse:
+        """Handle token management demo page"""
+        # Apply security checks
+        if self.security_middleware:
+            security_response = await self.security_middleware.check_token_management_access(request)
+            if security_response:
+                # Convert JSON response to HTML for demo page
+                error_data = security_response.body.decode('utf-8') if hasattr(security_response, 'body') else '{"error": "Access denied"}'
+                try:
+                    error_info = json.loads(error_data)
+                except:
+                    error_info = {"error": "Access denied"}
+                
+                error_html = f"""
+                <!DOCTYPE html>
+                <html>
+                <head>
+                    <title>Access Denied - Token Management</title>
+                    <style>
+                        body {{ font-family: Arial, sans-serif; margin: 50px; background: #f5f5f5; }}
+                        .container {{ max-width: 600px; margin: 0 auto; background: white; padding: 30px; border-radius: 8px; }}
+                        .error {{ color: #dc3545; background: #f8d7da; border: 1px solid #f5c6cb; padding: 15px; border-radius: 5px; }}
+                        .security-info {{ background: #d1ecf1; border: 1px solid #bee5eb; padding: 15px; border-radius: 5px; margin-top: 20px; }}
+                    </style>
+                </head>
+                <body>
+                    <div class="container">
+                        <h1>🔐 Token Management - Access Denied</h1>
+                        <div class="error">
+                            <h3>Access Denied</h3>
+                            <p><strong>Error:</strong> {error_info.get('error', 'Access denied')}</p>
+                            <p><strong>Message:</strong> {error_info.get('message', 'Token management access is restricted')}</p>
+                            {'<p><strong>Your IP:</strong> ' + str(error_info.get('client_ip', 'Unknown')) + '</p>' if 'client_ip' in error_info else ''}
+                        </div>
+                        
+                        <div class="security-info">
+                            <h3>🛡️ Security Information</h3>
+                            <p>Token management endpoints are protected by the following security measures:</p>
+                            <ul>
+                                <li><strong>IP Restrictions:</strong> Only localhost/127.0.0.1 access allowed</li>
+                                <li><strong>Admin Authentication:</strong> Valid admin token required</li>
+                                <li><strong>Configuration Control:</strong> Must be explicitly enabled</li>
+                            </ul>
+                            <p>If you need access, please:</p>
+                            <ol>
+                                <li>Access from the server host (127.0.0.1)</li>
+                                <li>Ensure HTTP token management is enabled in configuration</li>
+                                <li>Provide valid admin authentication</li>
+                            </ol>
+                        </div>
+                    </div>
+                </body>
+                </html>
+                """
+                return HTMLResponse(error_html, status_code=security_response.status_code)
+        
+        try:
+            # Check if token manager is available
+            if not self.security_manager.auth_provider.token_manager:
+                html_content = """
+                <!DOCTYPE html>
+                <html>
+                <head>
+                    <title>Token Management - Not Available</title>
+                    <style>
+                        body { font-family: Arial, sans-serif; margin: 50px; }
+                        .error { color: red; font-size: 18px; }
+                    </style>
+                </head>
+                <body>
+                    <h1>Token Management</h1>
+                    <div class="error">Token authentication is not enabled on this server.</div>
+                </body>
+                </html>
+                """
+                return HTMLResponse(html_content)
+            
+            # Get current stats for demo
+            stats = self.security_manager.get_token_stats()
+            
+            html_content = f"""
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <title>Doris MCP Server - Token Management</title>
+                <style>
+                    body {{ font-family: Arial, sans-serif; margin: 50px; background: #f5f5f5; }}
+                    .container {{ max-width: 1200px; margin: 0 auto; background: white; padding: 30px; border-radius: 8px; }}
+                    h1 {{ color: #333; }}
+                    .section {{ margin: 30px 0; padding: 20px; border: 1px solid #ddd; border-radius: 5px; }}
+                    .stats {{ display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; }}
+                    .stat-item {{ padding: 15px; background: #f8f9fa; border-radius: 5px; text-align: center; }}
+                    .stat-value {{ font-size: 24px; font-weight: bold; color: #007bff; }}
+                    .form-group {{ margin: 15px 0; }}
+                    .form-group label {{ display: block; margin-bottom: 5px; font-weight: bold; }}
+                    .form-group input, .form-group textarea {{ width: 100%; padding: 8px; border: 1px solid #ddd; border-radius: 4px; }}
+                    button {{ padding: 10px 20px; margin: 5px; border: none; border-radius: 4px; cursor: pointer; }}
+                    .btn-primary {{ background: #007bff; color: white; }}
+                    .btn-danger {{ background: #dc3545; color: white; }}
+                    .btn-success {{ background: #28a745; color: white; }}
+                    .response {{ margin: 15px 0; padding: 15px; border-radius: 5px; }}
+                    .response.success {{ background: #d4edda; border: 1px solid #c3e6cb; }}
+                    .response.error {{ background: #f8d7da; border: 1px solid #f5c6cb; }}
+                    .token-list {{ margin: 15px 0; }}
+                    .token-item {{ padding: 10px; margin: 5px 0; background: #f8f9fa; border-radius: 4px; }}
+                    pre {{ background: #f8f9fa; padding: 10px; border-radius: 4px; overflow-x: auto; }}
+                </style>
+            </head>
+            <body>
+                <div class="container">
+                    <h1>🔐 Doris MCP Server - Token Management</h1>
+                    
+                    <div class="section">
+                        <h2>📊 Token Statistics</h2>
+                        <div class="stats">
+                            <div class="stat-item">
+                                <div class="stat-value">{stats.get('total_tokens', 0)}</div>
+                                <div>Total Tokens</div>
+                            </div>
+                            <div class="stat-item">
+                                <div class="stat-value">{stats.get('active_tokens', 0)}</div>
+                                <div>Active Tokens</div>
+                            </div>
+                            <div class="stat-item">
+                                <div class="stat-value">{stats.get('expired_tokens', 0)}</div>
+                                <div>Expired Tokens</div>
+                            </div>
+                        </div>
+                        <p><strong>Token Expiry:</strong> {'Enabled' if stats.get('expiry_enabled') else 'Disabled'}</p>
+                        <p><strong>Default Expiry:</strong> {stats.get('default_expiry_hours', 0)} hours</p>
+                    </div>
+                    
+                    <div class="section">
+                        <h2>➕ Create New Token</h2>
+                        <form id="createTokenForm">
+                            <div class="form-group">
+                                <label for="token_id">Token ID (required):</label>
+                                <input type="text" id="token_id" name="token_id" placeholder="e.g., my-app-token" required>
+                            </div>
+                            <div class="form-group">
+                                <label for="expires_hours">Expires Hours (optional):</label>
+                                <input type="number" id="expires_hours" name="expires_hours" placeholder="e.g., 720 (30 days), leave empty for default">
+                            </div>
+                            <div class="form-group">
+                                <label for="description">Description (optional):</label>
+                                <textarea id="description" name="description" placeholder="Token description"></textarea>
+                            </div>
+                            <div class="form-group">
+                                <label for="custom_token">Custom Token (optional):</label>
+                                <input type="text" id="custom_token" name="custom_token" placeholder="Leave empty to auto-generate">
+                                <small style="color: #666; display: block; margin-top: 5px;">If not provided, a secure token will be generated automatically</small>
+                            </div>
+                            
+                            <div class="section" style="margin: 20px 0; padding: 15px; background: #f8f9fa; border-radius: 5px;">
+                                <h3>🗄️ Database Configuration (Optional)</h3>
+                                <p style="color: #666; font-size: 14px; margin-bottom: 15px;">Configure database connection for this token. Leave empty to use system defaults.</p>
+                                
+                                <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 10px;">
+                                    <div class="form-group">
+                                        <label for="db_host">Host:</label>
+                                        <input type="text" id="db_host" name="db_host" placeholder="localhost">
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="db_port">Port:</label>
+                                        <input type="number" id="db_port" name="db_port" placeholder="9030">
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="db_user">User:</label>
+                                        <input type="text" id="db_user" name="db_user" placeholder="root">
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="db_password">Password:</label>
+                                        <input type="password" id="db_password" name="db_password" placeholder="(optional)">
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="db_database">Database:</label>
+                                        <input type="text" id="db_database" name="db_database" placeholder="information_schema">
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="db_fe_http_port">FE HTTP Port:</label>
+                                        <input type="number" id="db_fe_http_port" name="db_fe_http_port" placeholder="8030">
+                                    </div>
+                                </div>
+                            </div>
+                            
+                            <button type="submit" class="btn-primary">Create Token</button>
+                        </form>
+                        <div id="createTokenResponse"></div>
+                    </div>
+                    
+                    <div class="section">
+                        <h2>📋 Token Management</h2>
+                        <button id="listTokensBtn" class="btn-success">Refresh Token List</button>
+                        <button id="cleanupTokensBtn" class="btn-primary">Cleanup Expired Tokens</button>
+                        <div id="tokenListResponse"></div>
+                        
+                        <h3>Revoke Token</h3>
+                        <div class="form-group">
+                            <input type="text" id="revokeTokenId" placeholder="Enter token ID to revoke">
+                            <button id="revokeTokenBtn" class="btn-danger">Revoke Token</button>
+                        </div>
+                        <div id="revokeTokenResponse"></div>
+                    </div>
+                    
+                    <div class="section">
+                        <h2>🔧 API Endpoints</h2>
+                        <p>Use these endpoints for programmatic token management:</p>
+                        <ul>
+                            <li><strong>POST /token/create</strong> - Create new token</li>
+                            <li><strong>DELETE /token/revoke?token_id=...</strong> - Revoke token</li>
+                            <li><strong>GET /token/list</strong> - List all tokens</li>
+                            <li><strong>GET /token/stats</strong> - Get token statistics</li>
+                            <li><strong>POST /token/cleanup</strong> - Cleanup expired tokens</li>
+                        </ul>
+                    </div>
+                </div>
+                
+                <script>
+                    // Get admin token from URL parameters
+                    const urlParams = new URLSearchParams(window.location.search);
+                    const adminToken = urlParams.get('admin_token');
+                    
+                    // Create request headers with admin token
+                    function getAuthHeaders() {{
+                        if (adminToken) {{
+                            return {{
+                                'Content-Type': 'application/json',
+                                'Authorization': `Bearer ${{adminToken}}`
+                            }};
+                        }} else {{
+                            return {{'Content-Type': 'application/json'}};
+                        }}
+                    }}
+                    
+                    // Create URL with admin token parameter
+                    function getAuthURL(baseUrl) {{
+                        if (adminToken) {{
+                            const separator = baseUrl.includes('?') ? '&' : '?';
+                            return `${{baseUrl}}${{separator}}admin_token=${{encodeURIComponent(adminToken)}}`;
+                        }}
+                        return baseUrl;
+                    }}
+                    
+                    function showResponse(elementId, data, isSuccess = true) {{
+                        const element = document.getElementById(elementId);
+                        element.innerHTML = '<pre>' + JSON.stringify(data, null, 2) + '</pre>';
+                        element.className = 'response ' + (isSuccess ? 'success' : 'error');
+                    }}
+                    
+                    // Create token form - updated to match actual API
+                    document.getElementById('createTokenForm').addEventListener('submit', async (e) => {{
+                        e.preventDefault();
+                        const formData = new FormData(e.target);
+                        const data = Object.fromEntries(formData.entries());
+                        
+                        // Remove empty fields for optional parameters
+                        if (!data.expires_hours) delete data.expires_hours;
+                        if (!data.description) delete data.description;
+                        if (!data.custom_token) delete data.custom_token;
+                        
+                        // Handle database configuration
+                        if (data.db_host) {{
+                            data.database_config = {{
+                                host: data.db_host,
+                                port: data.db_port ? parseInt(data.db_port) : 9030,
+                                user: data.db_user || 'root',
+                                password: data.db_password || '',
+                                database: data.db_database || 'information_schema',
+                                fe_http_port: data.db_fe_http_port ? parseInt(data.db_fe_http_port) : 8030
+                            }};
+                        }}
+                        
+                        // Remove individual database fields from data
+                        delete data.db_host;
+                        delete data.db_port;
+                        delete data.db_user;
+                        delete data.db_password;
+                        delete data.db_database;
+                        delete data.db_fe_http_port;
+                        
+                        try {{
+                            const response = await fetch(getAuthURL('/token/create'), {{
+                                method: 'POST',
+                                headers: getAuthHeaders(),
+                                body: JSON.stringify(data)
+                            }});
+                            const result = await response.json();
+                            showResponse('createTokenResponse', result, response.ok);
+                            
+                            // Refresh token list if creation was successful
+                            if (response.ok) {{
+                                document.getElementById('listTokensBtn').click();
+                            }}
+                        }} catch (error) {{
+                            showResponse('createTokenResponse', {{error: error.message}}, false);
+                        }}
+                    }});
+                    
+                    // List tokens
+                    document.getElementById('listTokensBtn').addEventListener('click', async () => {{
+                        try {{
+                            const response = await fetch(getAuthURL('/token/list'), {{
+                                headers: getAuthHeaders()
+                            }});
+                            const result = await response.json();
+                            showResponse('tokenListResponse', result, response.ok);
+                        }} catch (error) {{
+                            showResponse('tokenListResponse', {{error: error.message}}, false);
+                        }}
+                    }});
+                    
+                    // Cleanup tokens
+                    document.getElementById('cleanupTokensBtn').addEventListener('click', async () => {{
+                        try {{
+                            const response = await fetch(getAuthURL('/token/cleanup'), {{
+                                method: 'POST',
+                                headers: getAuthHeaders()
+                            }});
+                            const result = await response.json();
+                            showResponse('tokenListResponse', result, response.ok);
+                        }} catch (error) {{
+                            showResponse('tokenListResponse', {{error: error.message}}, false);
+                        }}
+                    }});
+                    
+                    // Revoke token
+                    document.getElementById('revokeTokenBtn').addEventListener('click', async () => {{
+                        const tokenId = document.getElementById('revokeTokenId').value;
+                        if (!tokenId) {{
+                            showResponse('revokeTokenResponse', {{error: 'Token ID is required'}}, false);
+                            return;
+                        }}
+                        
+                        try {{
+                            const response = await fetch(getAuthURL(`/token/revoke?token_id=${{encodeURIComponent(tokenId)}}`), {{
+                                method: 'DELETE',
+                                headers: getAuthHeaders()
+                            }});
+                            const result = await response.json();
+                            showResponse('revokeTokenResponse', result, response.ok);
+                            
+                            // Refresh token list if revocation was successful
+                            if (response.ok) {{
+                                document.getElementById('listTokensBtn').click();
+                                document.getElementById('revokeTokenId').value = '';
+                            }}
+                        }} catch (error) {{
+                            showResponse('revokeTokenResponse', {{error: error.message}}, false);
+                        }}
+                    }});
+                    
+                    // Load token list on page load
+                    document.getElementById('listTokensBtn').click();
+                </script>
+            </body>
+            </html>
+            """
+            
+            return HTMLResponse(html_content)
+            
+        except Exception as e:
+            self.logger.error(f"Error in handle_demo_page: {e}")
+            error_html = f"""
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <title>Token Management Error</title>
+                <style>body {{ font-family: Arial, sans-serif; margin: 50px; }}</style>
+            </head>
+            <body>
+                <h1>Token Management Error</h1>
+                <p>Error loading token management page: {str(e)}</p>
+            </body>
+            </html>
+            """
+            return HTMLResponse(error_html, status_code=500)

doris_mcp_server/auth/token_manager.py

@@ -0,0 +1,827 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Token Authentication Management Module
+
+Provides enterprise-grade token authentication system with configurable tokens,
+expiration management, role-based access control and secure token storage.
+"""
+
+import hashlib
+import json
+import os
+import secrets
+import time
+import asyncio
+from dataclasses import dataclass, field
+from datetime import datetime, timedelta
+from typing import Dict, List, Optional, Any
+from pathlib import Path
+
+from ..utils.logger import get_logger
+from ..utils.security import SecurityLevel
+
+
+@dataclass
+class DatabaseConfig:
+    """Database connection configuration for token binding"""
+    
+    host: str
+    port: int = 9030
+    user: str = ""
+    password: str = ""
+    database: str = "information_schema"
+    charset: str = "UTF8"
+    fe_http_port: int = 8030
+
+
+@dataclass
+class TokenInfo:
+    """Token information structure with optional database binding"""
+    
+    token_id: str  # Unique token identifier for audit and management
+    created_at: datetime = field(default_factory=datetime.utcnow)
+    expires_at: Optional[datetime] = None
+    last_used: Optional[datetime] = None
+    description: str = ""  # Optional description for token purpose
+    is_active: bool = True
+    database_config: Optional[DatabaseConfig] = None  # Optional database binding
+
+
+@dataclass
+class TokenValidationResult:
+    """Token validation result"""
+    
+    is_valid: bool
+    token_info: Optional[TokenInfo] = None
+    error_message: Optional[str] = None
+
+
+class TokenManager:
+    """Enterprise Token Authentication Manager
+    
+    Features:
+    - Configurable token storage (file-based or environment variables)
+    - Token expiration management
+    - Secure token hashing
+    - Role-based access control
+    - Token lifecycle management
+    """
+    
+    def __init__(self, config):
+        self.config = config
+        self.logger = get_logger(__name__)
+        
+        # Token storage
+        self._tokens: Dict[str, TokenInfo] = {}  # token_hash -> TokenInfo
+        self._token_ids: Dict[str, str] = {}     # token_id -> token_hash
+        
+        # Configuration
+        self.token_file_path = getattr(config.security, 'token_file_path', 'tokens.json')
+        self.enable_token_expiry = getattr(config.security, 'enable_token_expiry', True)
+        self.default_token_expiry_hours = getattr(config.security, 'default_token_expiry_hours', 24 * 30)  # 30 days
+        self.token_hash_algorithm = getattr(config.security, 'token_hash_algorithm', 'sha256')
+        
+        # Hot reload configuration
+        self.enable_hot_reload = True
+        self.hot_reload_interval = 10  # Check every 10 seconds
+        self._file_last_modified = 0
+        self._hot_reload_task = None
+        
+        # Initialize with default tokens if none exist
+        self._initialize_default_tokens()
+        
+        # Load tokens from configuration
+        self._load_tokens()
+        
+        # Start hot reload monitoring
+        if self.enable_hot_reload:
+            self._start_hot_reload()
+        
+        self.logger.info(f"TokenManager initialized with {len(self._tokens)} tokens, hot reload: {self.enable_hot_reload}")
+    
+    def _initialize_default_tokens(self):
+        """Initialize default tokens for basic authentication (configurable via environment)"""
+        # Default token configurations (can be overridden by environment variables)
+        default_tokens = [
+            {
+                'token_id': 'admin-token',
+                'token': os.getenv('DEFAULT_ADMIN_TOKEN', 'doris_admin_token_123456'),
+                'description': os.getenv('DEFAULT_ADMIN_DESCRIPTION', 'Default admin API access token'),
+                'expires_hours': None  # Never expires
+            },
+            {
+                'token_id': 'analyst-token', 
+                'token': os.getenv('DEFAULT_ANALYST_TOKEN', 'doris_analyst_token_123456'),
+                'description': os.getenv('DEFAULT_ANALYST_DESCRIPTION', 'Default data analysis API access token'),
+                'expires_hours': None  # Never expires
+            },
+            {
+                'token_id': 'readonly-token',
+                'token': os.getenv('DEFAULT_READONLY_TOKEN', 'doris_readonly_token_123456'),
+                'description': os.getenv('DEFAULT_READONLY_DESCRIPTION', 'Default read-only API access token'),
+                'expires_hours': None  # Never expires
+            }
+        ]
+        
+        
+        # Only add default tokens if no custom tokens are defined via environment variables
+        # Check if any TOKEN_* environment variables exist (excluding system and legacy configs)
+        excluded_prefixes = ('DEFAULT_', 'TOKEN_FILE_PATH', 'TOKEN_HASH_')
+        excluded_vars = {'TOKEN_SECRET', 'TOKEN_EXPIRY'}
+        
+        custom_tokens_exist = any(
+            key.startswith('TOKEN_') and 
+            not key.startswith(excluded_prefixes) and 
+            not key.endswith(('_EXPIRES_HOURS', '_DESCRIPTION')) and
+            key not in excluded_vars
+            for key in os.environ.keys()
+        )
+        
+        # Also check if token file exists and has content
+        token_file_exists = False
+        if os.path.exists(self.token_file_path):
+            try:
+                with open(self.token_file_path, 'r') as f:
+                    content = f.read().strip()
+                    if content and content != '{}':
+                        token_file_exists = True
+            except:
+                pass
+        
+        # Add default tokens only if no custom configuration exists
+        if not custom_tokens_exist and not token_file_exists:
+            for token_config in default_tokens:
+                self._add_token_from_config(token_config)
+            
+            self.logger.info(f"Initialized {len(default_tokens)} default tokens (no custom config found)")
+        else:
+            self.logger.info("Skipped default tokens initialization (custom tokens detected)")
+    
+    def _add_token_from_config(self, token_config: Dict[str, Any]):
+        """Add token from configuration with optional database binding"""
+        try:
+            # Calculate expiration time
+            expires_at = None
+            if self.enable_token_expiry:
+                expires_hours = token_config.get('expires_hours', self.default_token_expiry_hours)
+                if expires_hours is not None:
+                    expires_at = datetime.utcnow() + timedelta(hours=expires_hours)
+            
+            # Parse database configuration if provided
+            database_config = None
+            if 'database_config' in token_config:
+                db_config = token_config['database_config']
+                database_config = DatabaseConfig(
+                    host=db_config.get('host', 'localhost'),
+                    port=db_config.get('port', 9030),
+                    user=db_config.get('user', 'root'),
+                    password=db_config.get('password', ''),
+                    database=db_config.get('database', 'information_schema'),
+                    charset=db_config.get('charset', 'UTF8'),
+                    fe_http_port=db_config.get('fe_http_port', 8030)
+                )
+            
+            # Create token info
+            token_info = TokenInfo(
+                token_id=token_config['token_id'],
+                expires_at=expires_at,
+                description=token_config.get('description', ''),
+                is_active=token_config.get('is_active', True),
+                database_config=database_config
+            )
+            
+            # Hash the token
+            raw_token = token_config['token']
+            token_hash = self._hash_token(raw_token)
+            
+            # Store token
+            self._tokens[token_hash] = token_info
+            self._token_ids[token_info.token_id] = token_hash
+            
+            db_info = f" with DB binding ({database_config.host})" if database_config else ""
+            self.logger.debug(f"Added token '{token_info.token_id}'{db_info}")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to add token from config: {e}")
+            raise
+    
+    def _load_tokens(self):
+        """Load tokens from configuration sources"""
+        # 1. Load from environment variables
+        self._load_tokens_from_env()
+        
+        # 2. Load from token file if exists
+        if os.path.exists(self.token_file_path):
+            self._load_tokens_from_file()
+        
+        self.logger.info(f"Token loading completed, total tokens: {len(self._tokens)}")
+    
+    def _load_tokens_from_env(self):
+        """Load tokens from environment variables
+        
+        Simplified format: 
+        TOKEN_<ID>=<token>
+        TOKEN_<ID>_EXPIRES_HOURS=<hours>
+        TOKEN_<ID>_DESCRIPTION=<description>
+        """
+        token_prefixes = set()
+        
+        # Find all TOKEN_ environment variables (exclude legacy and system variables)
+        excluded_token_vars = {
+            'TOKEN_SECRET',           # Legacy token secret
+            'TOKEN_EXPIRY',           # Legacy token expiry
+            'TOKEN_FILE_PATH',        # System config
+            'TOKEN_HASH_ALGORITHM'    # System config
+        }
+        
+        for key in os.environ:
+            if (key.startswith('TOKEN_') and 
+                not key.endswith(('_EXPIRES_HOURS', '_DESCRIPTION')) and
+                key not in excluded_token_vars):
+                token_id = key[6:]  # Remove 'TOKEN_' prefix
+                token_prefixes.add(token_id)
+        
+        # Load each token
+        for token_id in token_prefixes:
+            try:
+                token = os.environ.get(f'TOKEN_{token_id}')
+                if not token:
+                    continue
+                
+                expires_hours_str = os.environ.get(f'TOKEN_{token_id}_EXPIRES_HOURS', str(self.default_token_expiry_hours))
+                description = os.environ.get(f'TOKEN_{token_id}_DESCRIPTION', f'Environment token {token_id}')
+                
+                expires_hours = None
+                try:
+                    if expires_hours_str and expires_hours_str.lower() != 'none':
+                        expires_hours = int(expires_hours_str)
+                except ValueError:
+                    expires_hours = self.default_token_expiry_hours
+                
+                # Add token
+                token_config = {
+                    'token_id': token_id.lower(),
+                    'token': token,
+                    'expires_hours': expires_hours,
+                    'description': description
+                }
+                
+                self._add_token_from_config(token_config)
+                
+            except Exception as e:
+                self.logger.error(f"Failed to load token {token_id} from environment: {e}")
+    
+    def _load_tokens_from_file(self):
+        """Load tokens from JSON file"""
+        try:
+            with open(self.token_file_path, 'r', encoding='utf-8') as f:
+                tokens_data = json.load(f)
+            
+            if isinstance(tokens_data, dict) and 'tokens' in tokens_data:
+                tokens_list = tokens_data['tokens']
+            elif isinstance(tokens_data, list):
+                tokens_list = tokens_data
+            else:
+                self.logger.error(f"Invalid token file format: {self.token_file_path}")
+                return
+            
+            for token_config in tokens_list:
+                self._add_token_from_config(token_config)
+            
+            self.logger.info(f"Loaded {len(tokens_list)} tokens from file: {self.token_file_path}")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to load tokens from file {self.token_file_path}: {e}")
+    
+    def _hash_token(self, token: str) -> str:
+        """Hash token for secure storage"""
+        if self.token_hash_algorithm == 'sha256':
+            return hashlib.sha256(token.encode('utf-8')).hexdigest()
+        elif self.token_hash_algorithm == 'sha512':
+            return hashlib.sha512(token.encode('utf-8')).hexdigest()
+        else:
+            # Fallback to sha256
+            return hashlib.sha256(token.encode('utf-8')).hexdigest()
+    
+    async def validate_token(self, token: str) -> TokenValidationResult:
+        """Validate token and return user information"""
+        try:
+            # Hash the provided token
+            token_hash = self._hash_token(token)
+            
+            # Find token info
+            token_info = self._tokens.get(token_hash)
+            if not token_info:
+                return TokenValidationResult(
+                    is_valid=False,
+                    error_message="Invalid token"
+                )
+            
+            # Check if token is active
+            if not token_info.is_active:
+                return TokenValidationResult(
+                    is_valid=False,
+                    error_message="Token is inactive"
+                )
+            
+            # Check expiration
+            if token_info.expires_at and datetime.utcnow() > token_info.expires_at:
+                return TokenValidationResult(
+                    is_valid=False,
+                    error_message="Token has expired"
+                )
+            
+            # Update last used time
+            token_info.last_used = datetime.utcnow()
+            
+            return TokenValidationResult(
+                is_valid=True,
+                token_info=token_info
+            )
+            
+        except Exception as e:
+            self.logger.error(f"Token validation error: {e}")
+            return TokenValidationResult(
+                is_valid=False,
+                error_message=f"Token validation failed: {str(e)}"
+            )
+    
+    def generate_token(self, length: int = 32) -> str:
+        """Generate a cryptographically secure random token"""
+        return secrets.token_urlsafe(length)
+    
+    async def create_token(
+        self,
+        token_id: str,
+        expires_hours: Optional[int] = None,
+        description: str = "",
+        custom_token: Optional[str] = None,
+        database_config: Optional[DatabaseConfig] = None
+    ) -> str:
+        """Create a new token"""
+        try:
+            # Check if token_id already exists
+            if token_id in self._token_ids:
+                raise ValueError(f"Token ID '{token_id}' already exists")
+            
+            # Generate or use provided token
+            if custom_token:
+                raw_token = custom_token
+            else:
+                raw_token = self.generate_token()
+            
+            # Calculate expiration
+            expires_at = None
+            if expires_hours is not None:
+                expires_at = datetime.utcnow() + timedelta(hours=expires_hours)
+            elif self.enable_token_expiry:
+                expires_at = datetime.utcnow() + timedelta(hours=self.default_token_expiry_hours)
+            
+            # Create token info
+            token_info = TokenInfo(
+                token_id=token_id,
+                expires_at=expires_at,
+                description=description,
+                database_config=database_config
+            )
+            
+            # Hash and store token
+            token_hash = self._hash_token(raw_token)
+            self._tokens[token_hash] = token_info
+            self._token_ids[token_id] = token_hash
+            
+            self.logger.info(f"Created new token '{token_id}'")
+            
+            # Save token to file
+            self._save_token_to_file(token_id, raw_token, token_info)
+            
+            return raw_token
+            
+        except Exception as e:
+            self.logger.error(f"Failed to create token: {e}")
+            raise
+    
+    async def revoke_token(self, token_id: str) -> bool:
+        """Revoke a token by token ID"""
+        try:
+            if token_id not in self._token_ids:
+                self.logger.warning(f"Token ID '{token_id}' not found")
+                return False
+            
+            # Get token hash and remove from storage
+            token_hash = self._token_ids[token_id]
+            if token_hash in self._tokens:
+                del self._tokens[token_hash]
+            del self._token_ids[token_id]
+            
+            self.logger.info(f"Revoked token '{token_id}'")
+            
+            # Save updated tokens to file
+            self._remove_token_from_file(token_id)
+            
+            return True
+            
+        except Exception as e:
+            self.logger.error(f"Failed to revoke token '{token_id}': {e}")
+            return False
+    
+    def _save_tokens_to_file(self):
+        """Save current tokens to JSON file"""
+        try:
+            # Convert current tokens to file format
+            tokens_list = []
+            
+            for token_hash, token_info in self._tokens.items():
+                # Find the raw token for this token_info
+                raw_token = None
+                for tid, thash in self._token_ids.items():
+                    if thash == token_hash and tid == token_info.token_id:
+                        # We can't recover the original token from hash, 
+                        # so we'll create a placeholder for existing tokens
+                        raw_token = f"<existing_token_hash_{token_hash[:8]}>"
+                        break
+                
+                if raw_token is None:
+                    continue
+                
+                token_config = {
+                    "token_id": token_info.token_id,
+                    "token": raw_token,
+                    "description": token_info.description,
+                    "expires_hours": None,
+                    "is_active": token_info.is_active
+                }
+                
+                # Add expiration info
+                if token_info.expires_at:
+                    # Calculate remaining hours from now
+                    remaining = token_info.expires_at - datetime.utcnow()
+                    if remaining.total_seconds() > 0:
+                        token_config["expires_hours"] = int(remaining.total_seconds() / 3600)
+                    else:
+                        token_config["expires_hours"] = 0
+                
+                # Add database config if present
+                if token_info.database_config:
+                    token_config["database_config"] = {
+                        "host": token_info.database_config.host,
+                        "port": token_info.database_config.port,
+                        "user": token_info.database_config.user,
+                        "password": token_info.database_config.password,
+                        "database": token_info.database_config.database,
+                        "charset": token_info.database_config.charset,
+                        "fe_http_port": token_info.database_config.fe_http_port
+                    }
+                
+                tokens_list.append(token_config)
+            
+            # Create file content
+            file_content = {
+                "version": "1.0",
+                "description": "Doris MCP Server Token configuration file",
+                "created_at": datetime.utcnow().isoformat() + "Z",
+                "tokens": tokens_list,
+                "notes": [
+                    "This file is automatically updated when tokens are created or revoked",
+                    "Please backup this file before making manual changes",
+                    "Tokens with hash placeholders were loaded from previous configuration"
+                ]
+            }
+            
+            # Save to file
+            with open(self.token_file_path, 'w', encoding='utf-8') as f:
+                json.dump(file_content, f, indent=2, ensure_ascii=False)
+            
+            self.logger.info(f"Saved {len(tokens_list)} tokens to file: {self.token_file_path}")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to save tokens to file {self.token_file_path}: {e}")
+    
+    def _save_token_to_file(self, token_id: str, raw_token: str, token_info: TokenInfo):
+        """Save a single new token to file (for newly created tokens only)"""
+        try:
+            # Load existing file
+            existing_data = {"tokens": []}
+            if os.path.exists(self.token_file_path):
+                try:
+                    with open(self.token_file_path, 'r', encoding='utf-8') as f:
+                        existing_data = json.load(f)
+                except Exception as e:
+                    self.logger.warning(f"Could not load existing token file: {e}")
+            
+            # Ensure tokens list exists
+            if 'tokens' not in existing_data or not isinstance(existing_data['tokens'], list):
+                existing_data['tokens'] = []
+            
+            # Check if token already exists in file
+            token_exists = False
+            for i, token_config in enumerate(existing_data['tokens']):
+                if token_config.get('token_id') == token_id:
+                    # Update existing token
+                    existing_data['tokens'][i] = self._token_info_to_config(token_id, raw_token, token_info)
+                    token_exists = True
+                    break
+            
+            # Add new token if it doesn't exist
+            if not token_exists:
+                new_token_config = self._token_info_to_config(token_id, raw_token, token_info)
+                existing_data['tokens'].append(new_token_config)
+            
+            # Update metadata
+            existing_data.update({
+                "version": "1.0",
+                "description": "Doris MCP Server Token configuration file",
+                "updated_at": datetime.utcnow().isoformat() + "Z"
+            })
+            
+            # Save to file
+            with open(self.token_file_path, 'w', encoding='utf-8') as f:
+                json.dump(existing_data, f, indent=2, ensure_ascii=False)
+            
+            self.logger.info(f"Saved token '{token_id}' to file: {self.token_file_path}")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to save token '{token_id}' to file: {e}")
+    
+    def _token_info_to_config(self, token_id: str, raw_token: str, token_info: TokenInfo) -> dict:
+        """Convert TokenInfo to file configuration format"""
+        token_config = {
+            "token_id": token_id,
+            "token": raw_token,
+            "description": token_info.description,
+            "expires_hours": None,
+            "is_active": token_info.is_active
+        }
+        
+        # Add expiration info
+        if token_info.expires_at:
+            # Calculate remaining hours from creation time
+            remaining = token_info.expires_at - token_info.created_at
+            token_config["expires_hours"] = int(remaining.total_seconds() / 3600) if remaining.total_seconds() > 0 else None
+        
+        # Add database config if present
+        if token_info.database_config:
+            token_config["database_config"] = {
+                "host": token_info.database_config.host,
+                "port": token_info.database_config.port,
+                "user": token_info.database_config.user,
+                "password": token_info.database_config.password,
+                "database": token_info.database_config.database,
+                "charset": token_info.database_config.charset,
+                "fe_http_port": token_info.database_config.fe_http_port
+            }
+        
+        return token_config
+    
+    def _remove_token_from_file(self, token_id: str):
+        """Remove a token from the JSON file"""
+        try:
+            if not os.path.exists(self.token_file_path):
+                return
+            
+            # Load existing file
+            with open(self.token_file_path, 'r', encoding='utf-8') as f:
+                existing_data = json.load(f)
+            
+            if 'tokens' not in existing_data or not isinstance(existing_data['tokens'], list):
+                return
+            
+            # Remove the token
+            original_count = len(existing_data['tokens'])
+            existing_data['tokens'] = [
+                token for token in existing_data['tokens'] 
+                if token.get('token_id') != token_id
+            ]
+            
+            if len(existing_data['tokens']) < original_count:
+                # Update metadata
+                existing_data.update({
+                    "version": "1.0", 
+                    "description": "Doris MCP Server Token configuration file",
+                    "updated_at": datetime.utcnow().isoformat() + "Z"
+                })
+                
+                # Save to file
+                with open(self.token_file_path, 'w', encoding='utf-8') as f:
+                    json.dump(existing_data, f, indent=2, ensure_ascii=False)
+                
+                self.logger.info(f"Removed token '{token_id}' from file: {self.token_file_path}")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to remove token '{token_id}' from file: {e}")
+    
+    async def list_tokens(self) -> List[Dict[str, Any]]:
+        """List all tokens (without sensitive data)"""
+        tokens = []
+        
+        for token_hash, token_info in self._tokens.items():
+            token_data = {
+                'token_id': token_info.token_id,
+                'created_at': token_info.created_at.isoformat(),
+                'expires_at': token_info.expires_at.isoformat() if token_info.expires_at else None,
+                'last_used': token_info.last_used.isoformat() if token_info.last_used else None,
+                'is_active': token_info.is_active,
+                'description': token_info.description,
+                'is_expired': token_info.expires_at and datetime.utcnow() > token_info.expires_at if token_info.expires_at else False
+            }
+            
+            # Add database binding info (without sensitive data)
+            if token_info.database_config:
+                token_data['database_binding'] = {
+                    'host': token_info.database_config.host,
+                    'port': token_info.database_config.port,
+                    'user': token_info.database_config.user,
+                    'database': token_info.database_config.database,
+                    'has_password': bool(token_info.database_config.password)
+                }
+            else:
+                token_data['database_binding'] = None
+                
+            tokens.append(token_data)
+        
+        # Sort by creation time
+        tokens.sort(key=lambda x: x['created_at'], reverse=True)
+        
+        return tokens
+    
+    async def cleanup_expired_tokens(self) -> int:
+        """Remove expired tokens and return count"""
+        if not self.enable_token_expiry:
+            return 0
+        
+        now = datetime.utcnow()
+        expired_tokens = []
+        
+        # Find expired tokens
+        for token_hash, token_info in self._tokens.items():
+            if token_info.expires_at and now > token_info.expires_at:
+                expired_tokens.append((token_hash, token_info.token_id))
+        
+        # Remove expired tokens
+        for token_hash, token_id in expired_tokens:
+            del self._tokens[token_hash]
+            if token_id in self._token_ids:
+                del self._token_ids[token_id]
+        
+        if expired_tokens:
+            self.logger.info(f"Cleaned up {len(expired_tokens)} expired tokens")
+        
+        return len(expired_tokens)
+    
+    async def save_tokens_to_file(self, file_path: Optional[str] = None) -> bool:
+        """Save current tokens to JSON file"""
+        try:
+            file_path = file_path or self.token_file_path
+            tokens_list = await self.list_tokens()
+            
+            tokens_data = {
+                'version': '1.0',
+                'created_at': datetime.utcnow().isoformat(),
+                'tokens': tokens_list
+            }
+            
+            with open(file_path, 'w', encoding='utf-8') as f:
+                json.dump(tokens_data, f, indent=2, ensure_ascii=False)
+            
+            self.logger.info(f"Saved {len(tokens_list)} tokens to file: {file_path}")
+            return True
+            
+        except Exception as e:
+            self.logger.error(f"Failed to save tokens to file: {e}")
+            return False
+    
+    def get_database_config_by_token(self, token: str) -> Optional[DatabaseConfig]:
+        """Get database configuration bound to a token
+        
+        Args:
+            token: The raw token string
+            
+        Returns:
+            DatabaseConfig if token exists and has database binding, None otherwise
+        """
+        try:
+            token_hash = self._hash_token(token)
+            token_info = self._tokens.get(token_hash)
+            
+            if not token_info or not token_info.is_active:
+                return None
+                
+            # Check expiration
+            if token_info.expires_at and datetime.utcnow() > token_info.expires_at:
+                return None
+                
+            return token_info.database_config
+            
+        except Exception as e:
+            self.logger.error(f"Failed to get database config for token: {e}")
+            return None
+    
+    def get_token_stats(self) -> Dict[str, Any]:
+        """Get token statistics"""
+        now = datetime.utcnow()
+        total_tokens = len(self._tokens)
+        active_tokens = sum(1 for info in self._tokens.values() if info.is_active)
+        expired_tokens = sum(1 for info in self._tokens.values() 
+                           if info.expires_at and now > info.expires_at)
+        tokens_with_db = sum(1 for info in self._tokens.values() 
+                           if info.database_config is not None)
+        
+        return {
+            'total_tokens': total_tokens,
+            'active_tokens': active_tokens,
+            'expired_tokens': expired_tokens,
+            'tokens_with_database_binding': tokens_with_db,
+            'expiry_enabled': self.enable_token_expiry,
+            'default_expiry_hours': self.default_token_expiry_hours,
+            'hot_reload_enabled': self.enable_hot_reload,
+            'last_file_check': datetime.fromtimestamp(self._file_last_modified).isoformat() if self._file_last_modified else None
+        }
+    
+    def _start_hot_reload(self):
+        """Start hot reload monitoring task"""
+        if self._hot_reload_task:
+            return  # Already running
+        
+        # Update initial file modification time
+        self._update_file_modified_time()
+        
+        # Start monitoring task
+        self._hot_reload_task = asyncio.create_task(self._hot_reload_monitor())
+        self.logger.info(f"Started hot reload monitoring for {self.token_file_path}")
+    
+    def stop_hot_reload(self):
+        """Stop hot reload monitoring"""
+        if self._hot_reload_task:
+            self._hot_reload_task.cancel()
+            self._hot_reload_task = None
+            self.logger.info("Stopped hot reload monitoring")
+    
+    def _update_file_modified_time(self):
+        """Update the last modified time of tokens file"""
+        try:
+            if os.path.exists(self.token_file_path):
+                self._file_last_modified = os.path.getmtime(self.token_file_path)
+        except Exception as e:
+            self.logger.debug(f"Failed to get file modification time: {e}")
+    
+    async def _hot_reload_monitor(self):
+        """Background task to monitor tokens.json file changes"""
+        while True:
+            try:
+                await asyncio.sleep(self.hot_reload_interval)
+                
+                if not os.path.exists(self.token_file_path):
+                    continue
+                
+                # Check if file was modified
+                current_mtime = os.path.getmtime(self.token_file_path)
+                if current_mtime > self._file_last_modified:
+                    self.logger.info(f"Detected changes in {self.token_file_path}, reloading tokens...")
+                    
+                    try:
+                        # Backup current tokens
+                        old_tokens = self._tokens.copy()
+                        old_token_ids = self._token_ids.copy()
+                        
+                        # Clear and reload
+                        self._tokens.clear()
+                        self._token_ids.clear()
+                        
+                        # Reinitialize default tokens
+                        self._initialize_default_tokens()
+                        
+                        # Load from file
+                        self._load_tokens_from_file()
+                        
+                        # Update modification time
+                        self._file_last_modified = current_mtime
+                        
+                        self.logger.info(f"Hot reload completed, {len(self._tokens)} tokens loaded")
+                        
+                    except Exception as reload_error:
+                        # Restore backup on failure
+                        self.logger.error(f"Hot reload failed, restoring previous tokens: {reload_error}")
+                        self._tokens = old_tokens
+                        self._token_ids = old_token_ids
+                
+            except asyncio.CancelledError:
+                self.logger.info("Hot reload monitor stopped")
+                break
+            except Exception as e:
+                self.logger.error(f"Error in hot reload monitor: {e}")

doris_mcp_server/auth/token_security_middleware.py

@@ -0,0 +1,227 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Token Management Security Middleware
+
+Provides comprehensive security controls for token management endpoints including
+IP restrictions, admin authentication, and configuration-based access control.
+"""
+
+import hashlib
+import hmac
+import ipaddress
+import secrets
+import time
+from typing import Optional, List, Dict, Any
+from starlette.requests import Request
+from starlette.responses import JSONResponse
+
+from ..utils.logger import get_logger
+from ..utils.config import DorisConfig
+
+
+class TokenSecurityMiddleware:
+    """Security middleware for token management endpoints"""
+    
+    def __init__(self, config: DorisConfig):
+        self.config = config
+        self.logger = get_logger(__name__)
+        
+        # Initialize admin token hash if provided
+        self._admin_token_hash = None
+        if config.security.token_management_admin_token:
+            self._admin_token_hash = self._hash_token(config.security.token_management_admin_token)
+            
+        # Normalize allowed IPs
+        self._allowed_networks = self._parse_allowed_networks(
+            config.security.token_management_allowed_ips
+        )
+        
+        self.logger.info(f"Token management security initialized: "
+                        f"HTTP endpoints {'enabled' if config.security.enable_http_token_management else 'disabled'}, "
+                        f"Admin auth {'required' if config.security.require_admin_auth else 'optional'}, "
+                        f"Allowed networks: {len(self._allowed_networks)}")
+    
+    def _hash_token(self, token: str) -> str:
+        """Hash token using SHA-256"""
+        return hashlib.sha256(token.encode('utf-8')).hexdigest()
+    
+    def _parse_allowed_networks(self, allowed_ips: List[str]) -> List[ipaddress.IPv4Network | ipaddress.IPv6Network]:
+        """Parse allowed IP addresses and networks"""
+        networks = []
+        for ip_str in allowed_ips:
+            try:
+                # Try to parse as network (CIDR notation)
+                if '/' in ip_str:
+                    networks.append(ipaddress.ip_network(ip_str, strict=False))
+                else:
+                    # Parse as single IP and convert to /32 network
+                    ip = ipaddress.ip_address(ip_str)
+                    if isinstance(ip, ipaddress.IPv4Address):
+                        networks.append(ipaddress.IPv4Network(f"{ip}/32"))
+                    else:
+                        networks.append(ipaddress.IPv6Network(f"{ip}/128"))
+            except ValueError as e:
+                self.logger.warning(f"Invalid IP/network '{ip_str}': {e}")
+        
+        return networks
+    
+    def _get_client_ip(self, request: Request) -> str:
+        """Extract client IP from request, considering proxies"""
+        # Check X-Forwarded-For header first (for proxy setups)
+        forwarded_for = request.headers.get('X-Forwarded-For')
+        if forwarded_for:
+            # Take the first IP (original client)
+            client_ip = forwarded_for.split(',')[0].strip()
+        elif request.headers.get('X-Real-IP'):
+            client_ip = request.headers.get('X-Real-IP')
+        else:
+            # Direct connection
+            client_ip = request.client.host if request.client else "unknown"
+        
+        return client_ip
+    
+    def _is_ip_allowed(self, client_ip: str) -> bool:
+        """Check if client IP is in allowed networks"""
+        try:
+            client_addr = ipaddress.ip_address(client_ip)
+            
+            for network in self._allowed_networks:
+                if client_addr in network:
+                    return True
+                    
+            return False
+            
+        except ValueError:
+            self.logger.warning(f"Invalid client IP format: {client_ip}")
+            return False
+    
+    def _extract_admin_token(self, request: Request) -> Optional[str]:
+        """Extract admin token from request headers"""
+        # Try Authorization header first
+        auth_header = request.headers.get('Authorization', '')
+        if auth_header.startswith('Bearer '):
+            return auth_header[7:]
+        elif auth_header.startswith('Token '):
+            return auth_header[6:]
+        
+        # Try X-Admin-Token header
+        admin_token = request.headers.get('X-Admin-Token', '')
+        if admin_token:
+            return admin_token
+        
+        # Try query parameter as fallback (not recommended for production)
+        admin_token = request.query_params.get('admin_token', '')
+        if admin_token:
+            self.logger.warning("Admin token passed via query parameter - this is insecure for production")
+            return admin_token
+        
+        return None
+    
+    def _verify_admin_token(self, provided_token: str) -> bool:
+        """Verify provided admin token against configured token"""
+        if not self._admin_token_hash:
+            self.logger.warning("No admin token configured for token management")
+            return False
+        
+        provided_hash = self._hash_token(provided_token)
+        
+        # Use constant-time comparison to prevent timing attacks
+        return hmac.compare_digest(self._admin_token_hash, provided_hash)
+    
+    async def check_token_management_access(self, request: Request) -> Optional[JSONResponse]:
+        """
+        Check if request is authorized for token management operations
+        
+        Returns:
+            None if access is granted
+            JSONResponse with error if access is denied
+        """
+        
+        # Check if HTTP token management is enabled
+        if not self.config.security.enable_http_token_management:
+            self.logger.warning(f"Token management endpoint access denied - HTTP management disabled: {request.url.path}")
+            return JSONResponse({
+                "error": "Token management endpoints are disabled for security",
+                "message": "HTTP token management is disabled. Use file-based token management instead.",
+                "suggestion": "Edit tokens.json file directly or enable HTTP management with proper security configuration"
+            }, status_code=403)
+        
+        # Extract client IP
+        client_ip = self._get_client_ip(request)
+        
+        # Check IP restrictions
+        if not self._is_ip_allowed(client_ip):
+            self.logger.warning(f"Token management access denied for IP {client_ip}: not in allowed list")
+            return JSONResponse({
+                "error": "Access denied - IP not allowed",
+                "client_ip": client_ip,
+                "message": "Token management is restricted to specific IP addresses",
+                "allowed_networks": [str(net) for net in self._allowed_networks]
+            }, status_code=403)
+        
+        # Check admin authentication if required
+        if self.config.security.require_admin_auth:
+            admin_token = self._extract_admin_token(request)
+            
+            if not admin_token:
+                self.logger.warning(f"Token management access denied for IP {client_ip}: missing admin token")
+                return JSONResponse({
+                    "error": "Admin authentication required",
+                    "message": "Token management requires admin authentication",
+                    "hint": "Provide admin token in Authorization header: 'Bearer <admin_token>' or 'X-Admin-Token: <admin_token>'"
+                }, status_code=401)
+            
+            if not self._verify_admin_token(admin_token):
+                self.logger.warning(f"Token management access denied for IP {client_ip}: invalid admin token")
+                return JSONResponse({
+                    "error": "Invalid admin token",
+                    "message": "The provided admin token is invalid"
+                }, status_code=401)
+        
+        # Log successful access
+        self.logger.info(f"Token management access granted for IP {client_ip} to {request.url.path}")
+        
+        # Access granted
+        return None
+    
+    def get_security_info(self) -> Dict[str, Any]:
+        """Get current security configuration info (for demo/status pages)"""
+        return {
+            "http_token_management_enabled": self.config.security.enable_http_token_management,
+            "admin_auth_required": self.config.security.require_admin_auth,
+            "admin_token_configured": bool(self._admin_token_hash),
+            "allowed_networks_count": len(self._allowed_networks),
+            "allowed_networks": [str(net) for net in self._allowed_networks],
+            "security_features": [
+                "IP address restrictions",
+                "Admin token authentication" if self.config.security.require_admin_auth else "Optional admin authentication",
+                "Secure token hashing",
+                "Request logging and auditing"
+            ]
+        }
+    
+    def generate_admin_token(self) -> str:
+        """Generate a secure admin token"""
+        return secrets.token_urlsafe(32)
+
+
+# Convenience function for middleware creation
+def create_token_security_middleware(config: DorisConfig) -> TokenSecurityMiddleware:
+    """Create token security middleware with configuration"""
+    return TokenSecurityMiddleware(config)

doris_mcp_server/auth/token_validators.py

@@ -0,0 +1,365 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+JWT Token Validation Module
+Provides token validation, blacklist management and security features
+"""
+
+import time
+import asyncio
+from typing import Dict, Set, Optional, Any
+from datetime import datetime, timedelta
+from collections import defaultdict
+
+from ..utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+class TokenBlacklist:
+    """JWT Token Blacklist Manager
+    
+    Manages revoked tokens to prevent revoked tokens from being used again
+    Supports both in-memory and persistent storage
+    """
+    
+    def __init__(self, cleanup_interval: int = 3600):
+        """Initialize token blacklist
+        
+        Args:
+            cleanup_interval: Interval for cleaning up expired tokens (seconds)
+        """
+        self.cleanup_interval = cleanup_interval
+        # Storage format: {token_jti: expiry_timestamp}
+        self._blacklisted_tokens: Dict[str, float] = {}
+        self._cleanup_task = None
+        
+        logger.info("TokenBlacklist initialized")
+    
+    async def start(self):
+        """Start blacklist manager"""
+        self._cleanup_task = asyncio.create_task(self._periodic_cleanup())
+        logger.info("TokenBlacklist started with periodic cleanup")
+    
+    async def stop(self):
+        """Stop blacklist manager"""
+        if self._cleanup_task:
+            self._cleanup_task.cancel()
+            try:
+                await self._cleanup_task
+            except asyncio.CancelledError:
+                pass
+        logger.info("TokenBlacklist stopped")
+    
+    async def add_token(self, jti: str, exp: float):
+        """Add token to blacklist
+        
+        Args:
+            jti: JWT ID (unique identifier)
+            exp: Token expiration timestamp
+        """
+        self._blacklisted_tokens[jti] = exp
+        logger.info(f"Token {jti} added to blacklist")
+    
+    async def is_blacklisted(self, jti: str) -> bool:
+        """Check if token is blacklisted
+        
+        Args:
+            jti: JWT ID
+            
+        Returns:
+            True if blacklisted, False otherwise
+        """
+        return jti in self._blacklisted_tokens
+    
+    async def remove_token(self, jti: str) -> bool:
+        """Remove token from blacklist
+        
+        Args:
+            jti: JWT ID
+            
+        Returns:
+            True if removed, False if not found
+        """
+        if jti in self._blacklisted_tokens:
+            del self._blacklisted_tokens[jti]
+            logger.info(f"Token {jti} removed from blacklist")
+            return True
+        return False
+    
+    async def cleanup_expired(self) -> int:
+        """Clean up expired blacklisted tokens
+        
+        Returns:
+            Number of tokens cleaned up
+        """
+        current_time = time.time()
+        expired_tokens = [
+            jti for jti, exp in self._blacklisted_tokens.items()
+            if exp <= current_time
+        ]
+        
+        for jti in expired_tokens:
+            del self._blacklisted_tokens[jti]
+        
+        if expired_tokens:
+            logger.info(f"Cleaned up {len(expired_tokens)} expired tokens from blacklist")
+        
+        return len(expired_tokens)
+    
+    async def get_stats(self) -> Dict[str, Any]:
+        """Get blacklist statistics"""
+        current_time = time.time()
+        active_tokens = sum(1 for exp in self._blacklisted_tokens.values() if exp > current_time)
+        
+        return {
+            "total_blacklisted": len(self._blacklisted_tokens),
+            "active_blacklisted": active_tokens,
+            "expired_blacklisted": len(self._blacklisted_tokens) - active_tokens,
+            "cleanup_interval": self.cleanup_interval
+        }
+    
+    async def _periodic_cleanup(self):
+        """Periodically clean up expired tokens"""
+        while True:
+            try:
+                await asyncio.sleep(self.cleanup_interval)
+                await self.cleanup_expired()
+            except asyncio.CancelledError:
+                break
+            except Exception as e:
+                logger.error(f"Error during periodic cleanup: {e}")
+
+
+class RateLimiter:
+    """Token usage rate limiter"""
+    
+    def __init__(self, max_requests: int = 100, time_window: int = 3600):
+        """Initialize rate limiter
+        
+        Args:
+            max_requests: Maximum requests within time window
+            time_window: Time window in seconds
+        """
+        self.max_requests = max_requests
+        self.time_window = time_window
+        # Storage format: {user_id: [timestamp1, timestamp2, ...]}
+        self._request_history: Dict[str, list] = defaultdict(list)
+        
+        logger.info(f"RateLimiter initialized: {max_requests} requests per {time_window} seconds")
+    
+    async def is_allowed(self, user_id: str) -> bool:
+        """Check if user is allowed to make request
+        
+        Args:
+            user_id: User ID
+            
+        Returns:
+            True if allowed, False otherwise
+        """
+        current_time = time.time()
+        user_requests = self._request_history[user_id]
+        
+        # Clean up expired request records
+        cutoff_time = current_time - self.time_window
+        user_requests[:] = [t for t in user_requests if t > cutoff_time]
+        
+        # Check if limit exceeded
+        if len(user_requests) >= self.max_requests:
+            logger.warning(f"Rate limit exceeded for user {user_id}")
+            return False
+        
+        # Record current request
+        user_requests.append(current_time)
+        return True
+    
+    async def get_usage(self, user_id: str) -> Dict[str, Any]:
+        """Get user usage information
+        
+        Args:
+            user_id: User ID
+            
+        Returns:
+            Usage statistics
+        """
+        current_time = time.time()
+        user_requests = self._request_history[user_id]
+        
+        # Clean up expired records
+        cutoff_time = current_time - self.time_window
+        active_requests = [t for t in user_requests if t > cutoff_time]
+        
+        return {
+            "user_id": user_id,
+            "requests_in_window": len(active_requests),
+            "max_requests": self.max_requests,
+            "time_window": self.time_window,
+            "remaining_requests": max(0, self.max_requests - len(active_requests))
+        }
+
+
+class TokenValidator:
+    """JWT Token Validator
+    
+    Provides comprehensive JWT token validation functionality, including signature verification,
+    claim validation, blacklist checking and rate limiting
+    """
+    
+    def __init__(self, config, blacklist: Optional[TokenBlacklist] = None):
+        """Initialize token validator
+        
+        Args:
+            config: DorisConfig configuration object (with security attribute)
+            blacklist: Token blacklist manager
+        """
+        self.config = config
+        self.blacklist = blacklist or TokenBlacklist()
+        self.rate_limiter = RateLimiter()
+        
+        # Access JWT settings through the security configuration
+        if hasattr(config, 'security'):
+            security_config = config.security
+        else:
+            # Fallback if config is passed directly as SecurityConfig
+            security_config = config
+        
+        # Validation options
+        self.verify_signature = security_config.jwt_verify_signature
+        self.verify_audience = security_config.jwt_verify_audience
+        self.verify_issuer = security_config.jwt_verify_issuer
+        self.require_exp = security_config.jwt_require_exp
+        self.require_iat = security_config.jwt_require_iat
+        self.require_nbf = security_config.jwt_require_nbf
+        self.leeway = security_config.jwt_leeway
+        
+        # Expected values
+        self.expected_audience = security_config.jwt_audience
+        self.expected_issuer = security_config.jwt_issuer
+        
+        logger.info("TokenValidator initialized")
+    
+    async def validate_claims(self, payload: Dict[str, Any]) -> Dict[str, Any]:
+        """Validate JWT claims
+        
+        Args:
+            payload: JWT payload
+            
+        Returns:
+            Validation result
+            
+        Raises:
+            ValueError: Validation failed
+        """
+        current_time = time.time()
+        
+        # Validate issuer
+        if self.verify_issuer:
+            if payload.get('iss') != self.expected_issuer:
+                raise ValueError(f"Invalid issuer: expected {self.expected_issuer}")
+        
+        # Validate audience
+        if self.verify_audience:
+            aud = payload.get('aud')
+            if isinstance(aud, list):
+                if self.expected_audience not in aud:
+                    raise ValueError(f"Invalid audience: {self.expected_audience} not in {aud}")
+            elif aud != self.expected_audience:
+                raise ValueError(f"Invalid audience: expected {self.expected_audience}")
+        
+        # Validate expiration time
+        if self.require_exp or 'exp' in payload:
+            exp = payload.get('exp')
+            if not exp:
+                raise ValueError("Missing 'exp' claim")
+            if current_time > exp + self.leeway:
+                raise ValueError("Token has expired")
+        
+        # Validate not before time
+        if self.require_nbf or 'nbf' in payload:
+            nbf = payload.get('nbf')
+            if not nbf:
+                raise ValueError("Missing 'nbf' claim")
+            if current_time < nbf - self.leeway:
+                raise ValueError("Token not yet valid")
+        
+        # Validate issued at time
+        if self.require_iat or 'iat' in payload:
+            iat = payload.get('iat')
+            if not iat:
+                raise ValueError("Missing 'iat' claim")
+            # Allow some clock skew, but cannot be future time
+            if iat > current_time + self.leeway:
+                raise ValueError("Token issued in the future")
+        
+        # Check blacklist
+        jti = payload.get('jti')
+        if jti and await self.blacklist.is_blacklisted(jti):
+            raise ValueError("Token has been revoked")
+        
+        # Rate limit check
+        user_id = payload.get('sub')
+        if user_id:
+            if not await self.rate_limiter.is_allowed(user_id):
+                raise ValueError("Rate limit exceeded")
+        
+        return {
+            "valid": True,
+            "user_id": user_id,
+            "payload": payload
+        }
+    
+    async def start(self):
+        """Start validator"""
+        await self.blacklist.start()
+        logger.info("TokenValidator started")
+    
+    async def stop(self):
+        """Stop validator"""
+        await self.blacklist.stop()
+        logger.info("TokenValidator stopped")
+    
+    async def revoke_token(self, jti: str, exp: float):
+        """Revoke token
+        
+        Args:
+            jti: JWT ID
+            exp: Token expiration time
+        """
+        await self.blacklist.add_token(jti, exp)
+        logger.info(f"Token {jti} has been revoked")
+    
+    async def get_validation_stats(self) -> Dict[str, Any]:
+        """Get validation statistics"""
+        blacklist_stats = await self.blacklist.get_stats()
+        
+        return {
+            "blacklist": blacklist_stats,
+            "validation_config": {
+                "verify_signature": self.verify_signature,
+                "verify_audience": self.verify_audience,
+                "verify_issuer": self.verify_issuer,
+                "require_exp": self.require_exp,
+                "require_iat": self.require_iat,
+                "require_nbf": self.require_nbf,
+                "leeway": self.leeway
+            }
+        }
+    
+    async def get_user_rate_limit_info(self, user_id: str) -> Dict[str, Any]:
+        """Get user rate limit information"""
+        return await self.rate_limiter.get_usage(user_id)

doris_mcp_server/main.py

@@ -28,15 +28,183 @@ import json
 import logging
 from typing import Any
 
-from mcp.server import Server
-from mcp.server.models import InitializationOptions
+# MCP version compatibility handling
+MCP_VERSION = 'unknown'
+Server = None
+InitializationOptions = None
+Prompt = None
+Resource = None
+TextContent = None
+Tool = None
 
-from mcp.types import (
-    Prompt,
-    Resource,
-    TextContent,
-    Tool,
-)
+def _import_mcp_with_compatibility():
+    """Import MCP components with multi-version compatibility"""
+    global MCP_VERSION, Server, InitializationOptions, Prompt, Resource, TextContent, Tool
+    
+    try:
+        # Strategy 1: Try direct server-only imports to avoid client-side issues
+        from mcp.server import Server as _Server
+        from mcp.server.models import InitializationOptions as _InitOptions
+        from mcp.types import (
+            Prompt as _Prompt,
+            Resource as _Resource, 
+            TextContent as _TextContent,
+            Tool as _Tool,
+        )
+        
+        # Assign to globals
+        Server = _Server
+        InitializationOptions = _InitOptions
+        Prompt = _Prompt
+        Resource = _Resource
+        TextContent = _TextContent
+        Tool = _Tool
+        
+        # Try to get version safely
+        try:
+            import mcp
+            MCP_VERSION = getattr(mcp, '__version__', None)
+            if not MCP_VERSION:
+                # Fallback: try to get version from package metadata
+                try:
+                    import importlib.metadata
+                    MCP_VERSION = importlib.metadata.version('mcp')
+                except Exception:
+                    # Second fallback: try pkg_resources
+                    try:
+                        import pkg_resources
+                        MCP_VERSION = pkg_resources.get_distribution('mcp').version
+                    except Exception:
+                        MCP_VERSION = 'detected-but-version-unknown'
+        except Exception:
+            # Version detection failed, but imports worked
+            try:
+                import importlib.metadata
+                MCP_VERSION = importlib.metadata.version('mcp')
+            except Exception:
+                try:
+                    import pkg_resources
+                    MCP_VERSION = pkg_resources.get_distribution('mcp').version
+                except Exception:
+                    MCP_VERSION = 'imported-successfully'
+            
+        logger = logging.getLogger(__name__)
+        logger.info(f"MCP components imported successfully, version: {MCP_VERSION}")
+        return True
+        
+    except Exception as import_error:
+        logger = logging.getLogger(__name__)
+        
+        # Strategy 2: Handle RequestContext compatibility issues in 1.9.x versions
+        error_str = str(import_error).lower()
+        if 'requestcontext' in error_str and 'too few arguments' in error_str:
+            logger.warning(f"Detected MCP RequestContext compatibility issue: {import_error}")
+            logger.info("Attempting comprehensive workaround for MCP 1.9.x RequestContext issue...")
+            
+            try:
+                # Comprehensive monkey patch approach
+                import sys
+                import types
+                
+                # Create and install mock modules before any MCP imports
+                if 'mcp.shared.context' not in sys.modules:
+                    mock_context_module = types.ModuleType('mcp.shared.context')
+                    
+                    class FlexibleRequestContext:
+                        """Flexible RequestContext that accepts variable arguments"""
+                        def __init__(self, *args, **kwargs):
+                            self.args = args
+                            self.kwargs = kwargs
+                        
+                        def __class_getitem__(cls, params):
+                            # Accept any number of parameters and return cls
+                            return cls
+                        
+                        # Add other methods that might be called
+                        def __getattr__(self, name):
+                            return lambda *args, **kwargs: None
+                    
+                    mock_context_module.RequestContext = FlexibleRequestContext
+                    sys.modules['mcp.shared.context'] = mock_context_module
+                
+                # Also patch the typing system to be more permissive  
+                original_check_generic = None
+                try:
+                    import typing
+                    if hasattr(typing, '_check_generic'):
+                        original_check_generic = typing._check_generic
+                        def permissive_check_generic(cls, params, elen):
+                            # Don't enforce strict parameter count checking
+                            return
+                        typing._check_generic = permissive_check_generic
+                except Exception:
+                    pass
+                
+                # Clear any cached imports that might have failed
+                modules_to_clear = [k for k in sys.modules.keys() if k.startswith('mcp.')]
+                for module in modules_to_clear:
+                    if module in sys.modules:
+                        del sys.modules[module]
+                
+                # Now try importing again with the patches in place
+                from mcp.server import Server as _Server
+                from mcp.server.models import InitializationOptions as _InitOptions
+                from mcp.types import (
+                    Prompt as _Prompt,
+                    Resource as _Resource, 
+                    TextContent as _TextContent,
+                    Tool as _Tool,
+                )
+                
+                # Assign to globals
+                Server = _Server
+                InitializationOptions = _InitOptions
+                Prompt = _Prompt
+                Resource = _Resource
+                TextContent = _TextContent
+                Tool = _Tool
+                
+                # Try to detect actual version even in compatibility mode
+                try:
+                    import importlib.metadata
+                    actual_version = importlib.metadata.version('mcp')
+                    MCP_VERSION = f'compatibility-mode-{actual_version}'
+                except Exception:
+                    try:
+                        import pkg_resources
+                        actual_version = pkg_resources.get_distribution('mcp').version
+                        MCP_VERSION = f'compatibility-mode-{actual_version}'
+                    except Exception:
+                        MCP_VERSION = 'compatibility-mode-1.9.x'
+                
+                logger.info("MCP 1.9.x compatibility workaround successful!")
+                
+                # Restore original typing function if we patched it
+                if original_check_generic:
+                    typing._check_generic = original_check_generic
+                
+                return True
+                
+            except Exception as workaround_error:
+                logger.error(f"MCP compatibility workaround failed: {workaround_error}")
+                
+                # Restore original typing function if we patched it
+                if original_check_generic:
+                    try:
+                        import typing
+                        typing._check_generic = original_check_generic
+                    except Exception:
+                        pass
+        
+        logger.error(f"Failed to import MCP components: {import_error}")
+        return False
+
+# Perform MCP import with compatibility handling
+if not _import_mcp_with_compatibility():
+    raise ImportError(
+        "Failed to import MCP components. Please ensure MCP is properly installed. "
+        "Supported versions: 1.8.x, 1.9.x"
+    )
 
 from .tools.tools_manager import DorisToolsManager
 from .tools.prompts_manager import DorisPromptsManager
@@ -44,11 +212,16 @@ from .tools.resources_manager import DorisResourcesManager
 from .utils.config import DorisConfig
 from .utils.db import DorisConnectionManager
 from .utils.security import DorisSecurityManager
+import os
 
-# Configure logging
-logging.basicConfig(level=logging.INFO)
+# Configure logging - will be properly initialized later
 logger = logging.getLogger(__name__)
 
+# Create a default config instance for getting default values
+_default_config = DorisConfig()
+
+
+
 
 class DorisServer:
     """Apache Doris MCP Server main class"""
@@ -57,20 +230,101 @@ class DorisServer:
         self.config = config
         self.server = Server("doris-mcp-server")
 
-        # Initialize security manager
+        # Initialize security manager (without connection_manager initially)
         self.security_manager = DorisSecurityManager(config)
 
-        # Initialize connection manager, pass in security manager
-        self.connection_manager = DorisConnectionManager(config, self.security_manager)
+        # Initialize connection manager, pass in security manager and token manager for token-bound DB config
+        token_manager = self.security_manager.auth_provider.token_manager if hasattr(self.security_manager, 'auth_provider') and hasattr(self.security_manager.auth_provider, 'token_manager') else None
+        self.connection_manager = DorisConnectionManager(config, self.security_manager, token_manager)
+        
+        # Set connection manager reference in security manager for database validation
+        self.security_manager.connection_manager = self.connection_manager
 
         # Initialize independent managers
         self.resources_manager = DorisResourcesManager(self.connection_manager)
         self.tools_manager = DorisToolsManager(self.connection_manager)
         self.prompts_manager = DorisPromptsManager(self.connection_manager)
 
-        self.logger = logging.getLogger(f"{__name__}.DorisServer")
+        # Import here to avoid circular imports
+        from .utils.logger import get_logger
+        self.logger = get_logger(f"{__name__}.DorisServer")
         self._setup_handlers()
 
+    async def _extract_auth_info_from_scope(self, scope, headers):
+        """Extract authentication information from ASGI scope and headers"""
+        auth_info = {}
+        
+        # Extract client IP
+        client = scope.get("client")
+        if client:
+            auth_info["client_ip"] = client[0]
+        else:
+            auth_info["client_ip"] = "unknown"
+        
+        # Extract token from Authorization header
+        authorization = headers.get(b'authorization', b'').decode('utf-8')
+        if authorization:
+            if authorization.startswith('Bearer '):
+                auth_info["token"] = authorization[7:]
+                auth_info["authorization"] = authorization
+            elif authorization.startswith('Token '):
+                auth_info["token"] = authorization[6:]
+                auth_info["authorization"] = authorization
+        
+        # Extract token from query parameters (for compatibility)
+        query_string = scope.get("query_string", b"").decode('utf-8')
+        if query_string and "token=" in query_string:
+            import urllib.parse
+            query_params = urllib.parse.parse_qs(query_string)
+            if "token" in query_params:
+                auth_info["token"] = query_params["token"][0]
+        
+        # If no token found, this will be handled by the authentication system
+        # (either return anonymous context if auth disabled, or raise error if auth enabled)
+        
+        return auth_info
+
+    def _get_mcp_capabilities(self):
+        """Get MCP capabilities with version compatibility"""
+        try:
+            # For MCP 1.9.x and newer
+            from mcp.server.lowlevel.server import NotificationOptions
+            
+            return self.server.get_capabilities(
+                notification_options=NotificationOptions(
+                    prompts_changed=True,
+                    resources_changed=True,
+                    tools_changed=True
+                ),
+                experimental_capabilities={}
+            )
+        except TypeError:
+            try:
+                # For MCP 1.8.x
+                from mcp.server.lowlevel.server import NotificationOptions
+                
+                return self.server.get_capabilities(
+                    notification_options=NotificationOptions(
+                        prompts_changed=True,
+                        resources_changed=True,
+                        tools_changed=True
+                    ),
+                    experimental_capabilities={}
+                )
+            except Exception as e:
+                self.logger.warning(f"Could not get capabilities with NotificationOptions: {e}")
+                # Fallback for older versions
+                try:
+                    return self.server.get_capabilities()
+                except Exception as fallback_e:
+                    self.logger.error(f"Failed to get capabilities: {fallback_e}")
+                    # Return minimal capabilities
+                    return {
+                        "resources": {},
+                        "tools": {},
+                        "prompts": {}
+                    }
+
     def _setup_handlers(self):
         """Setup MCP protocol handlers"""
 
@@ -174,12 +428,24 @@ class DorisServer:
         self.logger.info("Starting Doris MCP Server (stdio mode)")
 
         try:
-            # Ensure connection manager is initialized
-            await self.connection_manager.initialize()
-            self.logger.info("Connection manager initialization completed")
+            # Initialize security manager first (includes JWT setup if enabled)
+            await self.security_manager.initialize()
+            self.logger.info("Security manager initialization completed")
+            
+            # For stdio mode, we must establish a working database connection
+            # Use the dedicated stdio mode initialization method
+            await self.connection_manager.initialize_for_stdio_mode()
 
-            # Start stdio server - using simpler approach
-            from mcp.server.stdio import stdio_server
+            # Start stdio server - using compatible import approach
+            try:
+                from mcp.server.stdio import stdio_server
+            except ImportError:
+                # Fallback for different MCP versions
+                try:
+                    from mcp.server import stdio_server
+                except ImportError as stdio_import_error:
+                    self.logger.error(f"Failed to import stdio_server: {stdio_import_error}")
+                    raise RuntimeError("stdio_server module not available in this MCP version")
             
             self.logger.info("Creating stdio_server transport...")
             
@@ -189,22 +455,12 @@ class DorisServer:
                     read_stream, write_stream = streams
                     self.logger.info("stdio_server streams created successfully")
                     
-                    # Create initialization options
-                    # MCP 1.8.0 requires parameters for get_capabilities
-                    from mcp.server.lowlevel.server import NotificationOptions
-                    
-                    capabilities = self.server.get_capabilities(
-                        notification_options=NotificationOptions(
-                            prompts_changed=True,
-                            resources_changed=True,
-                            tools_changed=True
-                        ),
-                        experimental_capabilities={}
-                    )
+                    # Create initialization options with version compatibility
+                    capabilities = self._get_mcp_capabilities()
                     
                     init_options = InitializationOptions(
                         server_name="doris-mcp-server",
-                        server_version="1.0.0",
+                        server_version=os.getenv("SERVER_VERSION", _default_config.server_version),
                         capabilities=capabilities,
                     )
                     self.logger.info("Initialization options created successfully")
@@ -237,13 +493,21 @@ class DorisServer:
 
 
 
-    async def start_http(self, host: str = "localhost", port: int = 3000):
-        """Start Streamable HTTP transport mode"""
-        self.logger.info(f"Starting Doris MCP Server (Streamable HTTP mode) - {host}:{port}")
+    async def start_http(self, host: str = os.getenv("SERVER_HOST", _default_config.database.host), port: int = os.getenv("SERVER_PORT", _default_config.server_port), workers: int = 1):
+        """Start Streamable HTTP transport mode with workers support"""
+        self.logger.info(f"Starting Doris MCP Server (Streamable HTTP mode) - {host}:{port}, workers: {workers}")
 
         try:
-            # Ensure connection manager is initialized
-            await self.connection_manager.initialize()
+            # Initialize security manager first (includes JWT setup if enabled)  
+            await self.security_manager.initialize()
+            self.logger.info("Security manager initialization completed")
+            
+            # For HTTP mode, try to initialize global connection pool with graceful degradation
+            global_pool_created = await self.connection_manager.initialize_for_http_mode()
+            if global_pool_created:
+                self.logger.info("Global database connection pool available for HTTP mode")
+            else:
+                self.logger.info("HTTP mode running without global database pool, will use token-bound configurations")
 
             # Use Starlette and StreamableHTTPSessionManager according to official example
             import uvicorn
@@ -251,9 +515,9 @@ class DorisServer:
             from collections.abc import AsyncIterator
             from mcp.server.streamable_http_manager import StreamableHTTPSessionManager
             from starlette.applications import Starlette
-            from starlette.routing import Mount, Route
+            from starlette.routing import Route
             from starlette.responses import JSONResponse, Response
-            from starlette.types import Receive, Scope, Send
+            from starlette.types import Scope
             
             # Create session manager
             session_manager = StreamableHTTPSessionManager(
@@ -268,6 +532,44 @@ class DorisServer:
             async def health_check(request):
                 return JSONResponse({"status": "healthy", "service": "doris-mcp-server"})
             
+            # OAuth endpoints
+            from .auth.oauth_handlers import OAuthHandlers
+            oauth_handlers = OAuthHandlers(self.security_manager)
+            
+            async def oauth_login(request):
+                return await oauth_handlers.handle_login(request)
+            
+            async def oauth_callback(request):
+                return await oauth_handlers.handle_callback(request)
+            
+            async def oauth_provider_info(request):
+                return await oauth_handlers.handle_provider_info(request)
+                
+            async def oauth_demo(request):
+                return await oauth_handlers.handle_demo_page(request)
+            
+            # Token management endpoints
+            from .auth.token_handlers import TokenHandlers
+            token_handlers = TokenHandlers(self.security_manager, self.config)
+            
+            async def token_create(request):
+                return await token_handlers.handle_create_token(request)
+            
+            async def token_revoke(request):
+                return await token_handlers.handle_revoke_token(request)
+            
+            async def token_list(request):
+                return await token_handlers.handle_list_tokens(request)
+            
+            async def token_stats(request):
+                return await token_handlers.handle_token_stats(request)
+            
+            async def token_cleanup(request):
+                return await token_handlers.handle_cleanup_tokens(request)
+                
+            async def token_management(request):
+                return await token_handlers.handle_management_page(request)
+            
             # Lifecycle manager - simplified since we manage session_manager externally
             @contextlib.asynccontextmanager
             async def lifespan(app: Starlette) -> AsyncIterator[None]:
@@ -283,6 +585,18 @@ class DorisServer:
                 debug=True,
                 routes=[
                     Route("/health", health_check, methods=["GET"]),
+                    # OAuth endpoints
+                    Route("/auth/login", oauth_login, methods=["GET"]),
+                    Route("/auth/callback", oauth_callback, methods=["GET"]),
+                    Route("/auth/provider", oauth_provider_info, methods=["GET"]),
+                    Route("/auth/demo", oauth_demo, methods=["GET"]),
+                    # Token management endpoints
+                    Route("/token/create", token_create, methods=["GET", "POST"]),
+                    Route("/token/revoke", token_revoke, methods=["GET", "DELETE"]),
+                    Route("/token/list", token_list, methods=["GET"]),
+                    Route("/token/stats", token_stats, methods=["GET"]),
+                    Route("/token/cleanup", token_cleanup, methods=["GET", "POST"]),
+                    Route("/token/management", token_management, methods=["GET"]),
                 ],
                 lifespan=lifespan,
             )
@@ -300,8 +614,10 @@ class DorisServer:
                     self.logger.info(f"Received request for path: {path}")
                     
                     try:
-                        # Handle health check
-                        if path.startswith("/health"):
+                        # Handle health check, auth, and token management endpoints  
+                        if (path.startswith("/health") or 
+                            path.startswith("/auth/") or 
+                            path.startswith("/token/")):
                             await starlette_app(scope, receive, send)
                             return
                         
@@ -314,6 +630,39 @@ class DorisServer:
                             self.logger.info(f"MCP Request - Method: {method}")
                             self.logger.info(f"MCP Request - Headers: {headers}")
                             
+                            # Authentication check for MCP requests
+                            try:
+                                # Extract authentication information
+                                auth_info = await self._extract_auth_info_from_scope(scope, headers)
+
+                                # Authenticate the request
+                                auth_context = await self.security_manager.authenticate_request(auth_info)
+                                self.logger.info(f"MCP request authenticated: token_id={auth_context.token_id}, client_ip={auth_context.client_ip}")
+
+                                # Store auth context in scope for potential use by tools/resources
+                                scope["auth_context"] = auth_context
+
+                                # FIX for Issue #62 Bug 1: Set auth_context in context variable
+                                # This allows tools to access token information for token-bound database configuration
+                                # CRITICAL: Use the global ContextVar from security.py to ensure same instance is used everywhere
+                                try:
+                                    from .utils.security import mcp_auth_context_var
+                                    mcp_auth_context_var.set(auth_context)
+                                    self.logger.debug(f"Set auth_context in context variable with token: {bool(hasattr(auth_context, 'token') and auth_context.token)}")
+                                except Exception as ctx_error:
+                                    self.logger.warning(f"Failed to set auth_context in context variable: {ctx_error}")
+
+                            except Exception as auth_error:
+                                self.logger.error(f"MCP authentication failed: {auth_error}")
+                                # Return 401 Unauthorized
+                                from starlette.responses import JSONResponse
+                                response = JSONResponse(
+                                    {"error": "Authentication required", "message": str(auth_error)},
+                                    status_code=401
+                                )
+                                await response(scope, receive, send)
+                                return
+                            
                             # Handle Dify compatibility for GET requests
                             if method == "GET":
                                 accept_header = headers.get(b'accept', b'').decode('utf-8')
@@ -356,19 +705,35 @@ class DorisServer:
                     self.logger.warning(f"Unsupported scope type: {scope['type']}")
                     return
             
-            # Start uvicorn server with session manager lifecycle
-            config = uvicorn.Config(
-                app=mcp_app,
-                host=host,
-                port=port,
-                log_level="info"
-            )
-            server = uvicorn.Server(config)
-            
-            # Run session manager and server together
-            async with session_manager.run():
-                self.logger.info("Session manager started, now starting HTTP server")
-                await server.serve()
+            # Choose startup method based on worker count
+            if workers > 1:
+                self.logger.info(f"Using multi-process mode with {workers} workers")
+                self.logger.info("Note: Multi-worker mode provides full MCP functionality with independent worker processes")
+                
+                # Use the dedicated multiworker app module with full MCP support
+                uvicorn.run(
+                    "doris_mcp_server.multiworker_app:app",
+                    host=host,
+                    port=port,
+                    workers=workers,
+                    log_level="info"
+                )
+                
+            else:
+                self.logger.info("Using single-process mode")
+                # Single worker mode, use original logic with session manager lifecycle
+                config = uvicorn.Config(
+                    app=mcp_app,
+                    host=host,
+                    port=port,
+                    log_level="info"
+                )
+                server = uvicorn.Server(config)
+                
+                # Run session manager and server together
+                async with session_manager.run():
+                    self.logger.info("Session manager started, now starting HTTP server")
+                    await server.serve()
 
         except Exception as e:
             self.logger.error(f"Streamable HTTP server startup failed: {e}")
@@ -383,10 +748,16 @@ class DorisServer:
                     self.logger.error(f"  Exception {i+1}: {type(exc).__name__}: {exc}")
             raise
 
+
+
     async def shutdown(self):
         """Shutdown server"""
         self.logger.info("Shutting down Doris MCP Server")
         try:
+            # Shutdown security manager first (includes JWT cleanup)
+            await self.security_manager.shutdown()
+            self.logger.info("Security manager shutdown completed")
+            
             await self.connection_manager.close()
             self.logger.info("Doris MCP Server has been shut down")
         except Exception as e:
@@ -406,6 +777,11 @@ Transport Modes:
 Examples:
   python -m doris_mcp_server --transport stdio
   python -m doris_mcp_server --transport http --host 0.0.0.0 --port 3000
+  python -m doris_mcp_server --transport stdio --doris-host localhost --doris-port 9030
+  python -m doris_mcp_server --transport http --doris-user admin --doris-database test_db
+  
+  # Backward compatibility: --db-* parameters are also supported
+  python -m doris_mcp_server --transport stdio --db-host localhost --db-port 9030
         """
     )
 
@@ -413,91 +789,151 @@ Examples:
         "--transport",
         type=str,
         choices=["stdio", "http"],
-        default="stdio",
-        help="Transport protocol type: stdio (local), http (Streamable HTTP)",
+        default=os.getenv("TRANSPORT", _default_config.transport),
+        help=f"Transport protocol type: stdio (local), http (Streamable HTTP) (default: {_default_config.transport})",
     )
 
     parser.add_argument(
         "--host",
         type=str,
-        default="localhost",
-        help="Host address for HTTP mode (default: localhost)",
+        default=os.getenv("SERVER_HOST", _default_config.server_host),
+        help=f"Host address for HTTP mode (default: {_default_config.server_host})",
     )
 
     parser.add_argument(
-        "--port", type=int, default=3000, help="Port number for HTTP mode (default: 3000)"
+        "--port",
+        type=int,
+        default=3000,
+        help="Port number for HTTP mode (default: 3000)"
     )
 
     parser.add_argument(
-        "--db-host",
+        "--workers",
+        type=int,
+        default=1,
+        help="Number of worker processes for HTTP mode (default: 1, use 0 for auto-detect CPU cores)"
+    )
+
+    parser.add_argument(
+        "--doris-host", "--db-host",
         type=str,
-        default="localhost",
-        help="Doris database host address (default: localhost)",
+        default=os.getenv("DORIS_HOST", _default_config.database.host),
+        help=f"Doris database host address (default: {_default_config.database.host})",
     )
 
     parser.add_argument(
-        "--db-port", type=int, default=9030, help="Doris database port number (default: 9030)"
+        "--doris-port", "--db-port", type=int, default=9030, help="Doris database port number (default: 9030)"
     )
 
     parser.add_argument(
-        "--db-user", type=str, default="root", help="Doris database username (default: root)"
+        "--doris-user", "--db-user", type=str, default=os.getenv("DORIS_USER", _default_config.database.user), help=f"Doris database username (default: {_default_config.database.user})"
     )
 
-    parser.add_argument("--db-password", type=str, default="", help="Doris database password")
+    parser.add_argument("--doris-password", "--db-password", type=str, default=os.getenv("DORIS_PASSWORD", ""), help="Doris database password")
 
     parser.add_argument(
-        "--db-database",
+        "--doris-database", "--db-database",
         type=str,
-        default="information_schema",
-        help="Doris database name (default: information_schema)",
+        default=os.getenv("DORIS_DATABASE", _default_config.database.database),
+        help=f"Doris database name (default: {_default_config.database.database})",
     )
 
     parser.add_argument(
         "--log-level",
         type=str,
         choices=["DEBUG", "INFO", "WARNING", "ERROR"],
-        default="INFO",
-        help="Log level (default: INFO)",
+        default=os.getenv("LOG_LEVEL", _default_config.logging.level),
+        help=f"Log level (default: {_default_config.logging.level})",
     )
 
     return parser
 
 
-async def main():
-    """Main function"""
+def update_configuration(config: DorisConfig):
+    """Update doris configuration object"""
+    # For some arguments, if not specified, environment variables or default configurations will be used as default values
     parser = create_arg_parser()
     args = parser.parse_args()
 
-    # Set log level
-    logging.getLogger().setLevel(getattr(logging, args.log_level))
-
-    # Create configuration - priority: command line arguments > .env file > default values
-    config = DorisConfig.from_env()  # First load from .env file and environment variables
-    
+    # Update config values
     # Command line arguments override configuration (if provided)
-    if args.db_host != "localhost":  # If not default value, use command line argument
-        config.database.host = args.db_host
-    if args.db_port != 9030:
-        config.database.port = args.db_port
-    if args.db_user != "root":
-        config.database.user = args.db_user
-    if args.db_password:  # Use password if provided
-        config.database.password = args.db_password
-    if args.db_database != "information_schema":
-        config.database.database = args.db_database
-    if args.log_level != "INFO":
+    # basic
+    if args.transport != _default_config.transport:
+        config.transport = args.transport
+    if args.host != _default_config.server_host:
+        config.server_host = args.host
+    if args.port != _default_config.server_port:
+        config.server_port = args.port
+    server_name = os.getenv("SERVER_NAME")
+    if server_name:
+        config.server_name = server_name
+    server_version = os.getenv("SERVER_VERSION")
+    if server_version:
+        config.server_version = server_version
+ 
+    # database
+    if args.doris_host != _default_config.database.host:  # If not default value, use command line argument
+        config.database.host = args.doris_host
+    if args.doris_port != _default_config.database.port:
+        config.database.port = args.doris_port
+    if args.doris_user != _default_config.database.user:
+        config.database.user = args.doris_user
+    if args.doris_password:  # Use password if provided
+        config.database.password = args.doris_password
+    if args.doris_database != _default_config.database.database:
+        config.database.database = args.doris_database
+
+    # logging
+    if args.log_level != _default_config.logging.level:
         config.logging.level = args.log_level
+    
+    # workers (add to config for HTTP mode)
+    if hasattr(args, 'workers'):
+        config.workers = args.workers
+
+
+async def main():
+    """Main function"""
+    # Create configuration - priority: command line arguments > env variables > .env file > default values
+    # First load from .env file and environment variables
+    config = DorisConfig.from_env()
+ 
+    # Then parse the command line arguments, and update the config object.
+    update_configuration(config)
+
+    # Initialize enhanced logging system
+    from .utils.config import ConfigManager
+    config_manager = ConfigManager(config)
+    config_manager.setup_logging()
+    
+    # Get logger with proper configuration
+    from .utils.logger import get_logger, log_system_info
+    logger = get_logger(__name__)
+    
+    # Log system information for debugging
+    log_system_info()
+    
+    logger.info("Starting Doris MCP Server...")
+    logger.info(f"Transport: {config.transport}")
+    logger.info(f"Log Level: {config.logging.level}")
 
     # Create server instance
     server = DorisServer(config)
 
     try:
-        if args.transport == "stdio":
+        if config.transport == "stdio":
             await server.start_stdio()
-        elif args.transport == "http":
-            await server.start_http(args.host, args.port)
+        elif config.transport == "http":
+            # Get workers configuration with auto-detection support
+            workers = getattr(config, 'workers', 1)
+            if workers == 0:
+                import multiprocessing
+                workers = multiprocessing.cpu_count()
+                logger.info(f"Auto-detected {workers} CPU cores for worker processes")
+            
+            await server.start_http(config.server_host, config.server_port, workers)
         else:
-            logger.error(f"Unsupported transport protocol: {args.transport}")
+            logger.error(f"Unsupported transport protocol: {config.transport}")
             await server.shutdown()
             return 1
 
@@ -517,6 +953,10 @@ async def main():
             await server.shutdown()
         except Exception as shutdown_error:
             logger.error(f"Error occurred while shutting down server: {shutdown_error}")
+        
+        # Shutdown logging system
+        from .utils.logger import shutdown_logging
+        shutdown_logging()
 
     return 0
 

doris_mcp_server/multiworker_app.py

@@ -0,0 +1,627 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Multi-worker application module for doris-mcp-server
+
+This module provides full MCP functionality with multi-worker support.
+Each worker process creates its own MCP server and session manager using the same
+robust architecture as the single-worker mode.
+"""
+
+import os
+import asyncio
+from contextlib import asynccontextmanager
+import json
+import logging
+from typing import Any
+
+# Import MCP components with compatibility handling
+# Use the same import strategy as main.py for consistency
+MCP_VERSION = 'unknown'
+Server = None
+InitializationOptions = None
+Prompt = None
+Resource = None
+TextContent = None
+Tool = None
+
+def _import_mcp_with_compatibility():
+    """Import MCP components with multi-version compatibility"""
+    global MCP_VERSION, Server, InitializationOptions, Prompt, Resource, TextContent, Tool
+    
+    try:
+        # Strategy 1: Try direct server-only imports to avoid client-side issues
+        from mcp.server import Server as _Server
+        from mcp.server.models import InitializationOptions as _InitOptions
+        from mcp.types import (
+            Prompt as _Prompt,
+            Resource as _Resource, 
+            TextContent as _TextContent,
+            Tool as _Tool,
+        )
+        
+        # Assign to globals
+        Server = _Server
+        InitializationOptions = _InitOptions
+        Prompt = _Prompt
+        Resource = _Resource
+        TextContent = _TextContent
+        Tool = _Tool
+        
+        # Try to get version safely
+        try:
+            import mcp
+            MCP_VERSION = getattr(mcp, '__version__', None)
+            if not MCP_VERSION:
+                # Fallback: try to get version from package metadata
+                try:
+                    import importlib.metadata
+                    MCP_VERSION = importlib.metadata.version('mcp')
+                except Exception:
+                    # Second fallback: try pkg_resources
+                    try:
+                        import pkg_resources
+                        MCP_VERSION = pkg_resources.get_distribution('mcp').version
+                    except Exception:
+                        MCP_VERSION = 'detected-but-version-unknown'
+        except Exception:
+            # Version detection failed, but imports worked
+            try:
+                import importlib.metadata
+                MCP_VERSION = importlib.metadata.version('mcp')
+            except Exception:
+                try:
+                    import pkg_resources
+                    MCP_VERSION = pkg_resources.get_distribution('mcp').version
+                except Exception:
+                    MCP_VERSION = 'imported-successfully'
+            
+        logger = logging.getLogger(__name__)
+        logger.info(f"MCP components imported successfully in multiworker, version: {MCP_VERSION}")
+        return True
+        
+    except Exception as import_error:
+        logger = logging.getLogger(__name__)
+        
+        # Strategy 2: Handle RequestContext compatibility issues in 1.9.x versions
+        error_str = str(import_error).lower()
+        if 'requestcontext' in error_str and 'too few arguments' in error_str:
+            logger.warning(f"Detected MCP RequestContext compatibility issue: {import_error}")
+            logger.info("Attempting comprehensive workaround for MCP 1.9.x RequestContext issue...")
+            
+            try:
+                # Comprehensive monkey patch approach
+                import sys
+                import types
+                
+                # Create and install mock modules before any MCP imports
+                if 'mcp.shared.context' not in sys.modules:
+                    mock_context_module = types.ModuleType('mcp.shared.context')
+                    
+                    class FlexibleRequestContext:
+                        """Flexible RequestContext that accepts variable arguments"""
+                        def __init__(self, *args, **kwargs):
+                            self.args = args
+                            self.kwargs = kwargs
+                        
+                        def __class_getitem__(cls, params):
+                            # Accept any number of parameters and return cls
+                            return cls
+                        
+                        # Add other methods that might be called
+                        def __getattr__(self, name):
+                            return lambda *args, **kwargs: None
+                    
+                    mock_context_module.RequestContext = FlexibleRequestContext
+                    sys.modules['mcp.shared.context'] = mock_context_module
+                
+                # Also patch the typing system to be more permissive  
+                original_check_generic = None
+                try:
+                    import typing
+                    if hasattr(typing, '_check_generic'):
+                        original_check_generic = typing._check_generic
+                        def permissive_check_generic(cls, params, elen):
+                            # Don't enforce strict parameter count checking
+                            return
+                        typing._check_generic = permissive_check_generic
+                except Exception:
+                    pass
+                
+                # Clear any cached imports that might have failed
+                modules_to_clear = [k for k in sys.modules.keys() if k.startswith('mcp.')]
+                for module in modules_to_clear:
+                    if module in sys.modules:
+                        del sys.modules[module]
+                
+                # Now try importing again with the patches in place
+                from mcp.server import Server as _Server
+                from mcp.server.models import InitializationOptions as _InitOptions
+                from mcp.types import (
+                    Prompt as _Prompt,
+                    Resource as _Resource, 
+                    TextContent as _TextContent,
+                    Tool as _Tool,
+                )
+                
+                # Assign to globals
+                Server = _Server
+                InitializationOptions = _InitOptions
+                Prompt = _Prompt
+                Resource = _Resource
+                TextContent = _TextContent
+                Tool = _Tool
+                
+                # Try to detect actual version even in compatibility mode
+                try:
+                    import importlib.metadata
+                    actual_version = importlib.metadata.version('mcp')
+                    MCP_VERSION = f'compatibility-mode-{actual_version}'
+                except Exception:
+                    try:
+                        import pkg_resources
+                        actual_version = pkg_resources.get_distribution('mcp').version
+                        MCP_VERSION = f'compatibility-mode-{actual_version}'
+                    except Exception:
+                        MCP_VERSION = 'compatibility-mode-1.9.x'
+                
+                logger.info("MCP 1.9.x compatibility workaround successful in multiworker!")
+                
+                # Restore original typing function if we patched it
+                if original_check_generic:
+                    typing._check_generic = original_check_generic
+                
+                return True
+                
+            except Exception as workaround_error:
+                logger.error(f"MCP compatibility workaround failed in multiworker: {workaround_error}")
+                
+                # Restore original typing function if we patched it
+                if original_check_generic:
+                    try:
+                        import typing
+                        typing._check_generic = original_check_generic
+                    except Exception:
+                        pass
+        
+        logger.error(f"Failed to import MCP components in multiworker: {import_error}")
+        return False
+
+# Perform MCP import with compatibility handling
+if not _import_mcp_with_compatibility():
+    raise ImportError(
+        "Failed to import MCP components in multiworker. Please ensure MCP is properly installed. "
+        "Supported versions: 1.8.x, 1.9.x"
+    )
+
+from starlette.applications import Starlette
+from starlette.routing import Route
+from starlette.responses import JSONResponse, Response
+
+# Import Doris MCP components
+from .tools.tools_manager import DorisToolsManager
+from .tools.prompts_manager import DorisPromptsManager
+from .tools.resources_manager import DorisResourcesManager
+from .utils.config import DorisConfig
+from .utils.db import DorisConnectionManager
+from .utils.security import DorisSecurityManager
+
+# Global variables for worker-specific instances
+_worker_server = None
+_worker_session_manager = None
+_worker_connection_manager = None
+_worker_security_manager = None
+_worker_session_manager_context = None
+_worker_initialized = False
+
+def get_mcp_capabilities():
+    """Get MCP capabilities for worker - use the same logic as main.py"""
+    try:
+        # For MCP 1.9.x and newer
+        from mcp.server.lowlevel.server import NotificationOptions
+        
+        capabilities = {
+            "resources": {},
+            "tools": {},
+            "prompts": {},
+            "notification_options": {
+                "prompts_changed": True,
+                "resources_changed": True,
+                "tools_changed": True
+            }
+        }
+        return capabilities
+    except Exception as e:
+        # Import logger properly
+        from .utils.logger import get_logger
+        logger = get_logger(__name__)
+        logger.warning(f"Failed to get full capabilities in multiworker: {e}")
+        return {
+            "resources": {},
+            "tools": {},
+            "prompts": {}
+        }
+
+async def initialize_worker():
+    """Initialize MCP server and managers for this worker process"""
+    global _worker_server, _worker_session_manager, _worker_connection_manager, _worker_security_manager, _worker_session_manager_context, _worker_initialized, _oauth_handlers, _token_handlers
+    
+    if _worker_initialized:
+        return
+    
+    try:
+        # Import logger properly
+        from .utils.logger import get_logger
+        logger = get_logger(__name__)
+        
+        logger.info(f"Initializing MCP worker process {os.getpid()}")
+        
+        # Create configuration
+        config = DorisConfig.from_env()
+        
+        # Initialize enhanced logging system
+        from .utils.config import ConfigManager
+        config_manager = ConfigManager(config)
+        config_manager.setup_logging()
+        
+        # Create security manager
+        _worker_security_manager = DorisSecurityManager(config)
+        
+        # Initialize security manager first (includes JWT setup if enabled)
+        await _worker_security_manager.initialize()
+        logger.info(f"Worker {os.getpid()} security manager initialization completed")
+        
+        # Create connection manager with token manager for token-bound DB config
+        token_manager = _worker_security_manager.auth_provider.token_manager if hasattr(_worker_security_manager, 'auth_provider') and hasattr(_worker_security_manager.auth_provider, 'token_manager') else None
+        _worker_connection_manager = DorisConnectionManager(config, _worker_security_manager, token_manager)
+        
+        # Set connection manager reference in security manager for database validation
+        _worker_security_manager.connection_manager = _worker_connection_manager
+        
+        await _worker_connection_manager.initialize()
+        
+        # Create MCP server
+        _worker_server = Server("doris-mcp-server")
+        
+        # Create managers
+        resources_manager = DorisResourcesManager(_worker_connection_manager)
+        tools_manager = DorisToolsManager(_worker_connection_manager)
+        prompts_manager = DorisPromptsManager(_worker_connection_manager)
+        
+        # Setup MCP handlers
+        @_worker_server.list_resources()
+        async def handle_list_resources() -> list[Resource]:
+            """Handle resource list request"""
+            try:
+                logger.info("Handling resource list request in worker")
+                resources = await resources_manager.list_resources()
+                logger.info(f"Returning {len(resources)} resources from worker")
+                return resources
+            except Exception as e:
+                logger.error(f"Failed to handle resource list request in worker: {e}")
+                return []
+
+        @_worker_server.read_resource()
+        async def handle_read_resource(uri: str) -> str:
+            """Handle resource read request"""
+            try:
+                logger.info(f"Handling resource read request in worker: {uri}")
+                content = await resources_manager.read_resource(uri)
+                return content
+            except Exception as e:
+                logger.error(f"Failed to handle resource read request in worker: {e}")
+                return json.dumps(
+                    {"error": f"Failed to read resource: {str(e)}", "uri": uri},
+                    ensure_ascii=False,
+                    indent=2,
+                )
+
+        @_worker_server.list_tools()
+        async def handle_list_tools() -> list[Tool]:
+            """Handle tool list request"""
+            try:
+                logger.info("Handling tool list request in worker")
+                tools = await tools_manager.list_tools()
+                logger.info(f"Returning {len(tools)} tools from worker")
+                return tools
+            except Exception as e:
+                logger.error(f"Failed to handle tool list request in worker: {e}")
+                return []
+
+        @_worker_server.call_tool()
+        async def handle_call_tool(name: str, arguments: dict[str, Any]) -> list[TextContent]:
+            """Handle tool call request"""
+            try:
+                logger.info(f"Handling tool call request in worker: {name}")
+                result = await tools_manager.call_tool(name, arguments)
+                return [TextContent(type="text", text=result)]
+            except Exception as e:
+                logger.error(f"Failed to handle tool call request in worker: {e}")
+                error_result = json.dumps(
+                    {
+                        "error": f"Tool call failed: {str(e)}",
+                        "tool_name": name,
+                        "arguments": arguments,
+                    },
+                    ensure_ascii=False,
+                    indent=2,
+                )
+                return [TextContent(type="text", text=error_result)]
+
+        @_worker_server.list_prompts()
+        async def handle_list_prompts() -> list[Prompt]:
+            """Handle prompt list request"""
+            try:
+                logger.info("Handling prompt list request in worker")
+                prompts = await prompts_manager.list_prompts()
+                logger.info(f"Returning {len(prompts)} prompts from worker")
+                return prompts
+            except Exception as e:
+                logger.error(f"Failed to handle prompt list request in worker: {e}")
+                return []
+
+        @_worker_server.get_prompt()
+        async def handle_get_prompt(name: str, arguments: dict[str, Any]) -> str:
+            """Handle prompt get request"""
+            try:
+                logger.info(f"Handling prompt get request in worker: {name}")
+                result = await prompts_manager.get_prompt(name, arguments)
+                return result
+            except Exception as e:
+                logger.error(f"Failed to handle prompt get request in worker: {e}")
+                error_result = json.dumps(
+                    {
+                        "error": f"Failed to get prompt: {str(e)}",
+                        "prompt_name": name,
+                        "arguments": arguments,
+                    },
+                    ensure_ascii=False,
+                    indent=2,
+                )
+                return error_result
+        
+        # Create session manager for this worker
+        from mcp.server.streamable_http_manager import StreamableHTTPSessionManager
+        
+        _worker_session_manager = StreamableHTTPSessionManager(
+            app=_worker_server,
+            json_response=True,
+            stateless=True  # Use stateless mode for multi-worker compatibility
+        )
+        
+        # Start the session manager context
+        _worker_session_manager_context = _worker_session_manager.run()
+        await _worker_session_manager_context.__aenter__()
+        
+        # Initialize OAuth and Token handlers
+        from .auth.oauth_handlers import OAuthHandlers
+        from .auth.token_handlers import TokenHandlers
+        _oauth_handlers = OAuthHandlers(_worker_security_manager)
+        _token_handlers = TokenHandlers(_worker_security_manager, config)
+        
+        _worker_initialized = True
+        logger.info(f"Worker {os.getpid()} MCP initialization completed successfully")
+        
+    except Exception as e:
+        from .utils.logger import get_logger
+        logger = get_logger(__name__)
+        logger.error(f"Failed to initialize worker {os.getpid()}: {e}")
+        import traceback
+        logger.error("Complete error stack:")
+        logger.error(traceback.format_exc())
+        raise
+
+async def health_check(request):
+    """Health check endpoint that shows worker PID"""
+    return JSONResponse({
+        "status": "healthy",
+        "service": "doris-mcp-server",
+        "worker_pid": os.getpid(),
+        "worker_mode": "multi-process-full-mcp",
+        "mcp_initialized": _worker_initialized,
+        "mcp_version": MCP_VERSION
+    })
+
+# OAuth and Token handlers (initialize after worker setup)
+_oauth_handlers = None
+_token_handlers = None
+
+async def oauth_login(request):
+    """OAuth login endpoint"""
+    if not _oauth_handlers:
+        return JSONResponse({"error": "OAuth not initialized"}, status_code=503)
+    return await _oauth_handlers.handle_login(request)
+
+async def oauth_callback(request):
+    """OAuth callback endpoint"""
+    if not _oauth_handlers:
+        return JSONResponse({"error": "OAuth not initialized"}, status_code=503)
+    return await _oauth_handlers.handle_callback(request)
+
+async def oauth_provider_info(request):
+    """OAuth provider info endpoint"""
+    if not _oauth_handlers:
+        return JSONResponse({"error": "OAuth not initialized"}, status_code=503)
+    return await _oauth_handlers.handle_provider_info(request)
+
+async def oauth_demo(request):
+    """OAuth demo page endpoint"""
+    if not _oauth_handlers:
+        from starlette.responses import HTMLResponse
+        return HTMLResponse("<h1>OAuth not initialized</h1>")
+    return await _oauth_handlers.handle_demo_page(request)
+
+# Token management endpoints
+async def token_create(request):
+    """Token creation endpoint"""
+    if not _token_handlers:
+        return JSONResponse({"error": "Token handlers not initialized"}, status_code=503)
+    return await _token_handlers.handle_create_token(request)
+
+async def token_revoke(request):
+    """Token revocation endpoint"""
+    if not _token_handlers:
+        return JSONResponse({"error": "Token handlers not initialized"}, status_code=503)
+    return await _token_handlers.handle_revoke_token(request)
+
+async def token_list(request):
+    """Token listing endpoint"""
+    if not _token_handlers:
+        return JSONResponse({"error": "Token handlers not initialized"}, status_code=503)
+    return await _token_handlers.handle_list_tokens(request)
+
+async def token_stats(request):
+    """Token statistics endpoint"""
+    if not _token_handlers:
+        return JSONResponse({"error": "Token handlers not initialized"}, status_code=503)
+    return await _token_handlers.handle_token_stats(request)
+
+async def token_cleanup(request):
+    """Token cleanup endpoint"""
+    if not _token_handlers:
+        return JSONResponse({"error": "Token handlers not initialized"}, status_code=503)
+    return await _token_handlers.handle_cleanup_tokens(request)
+
+async def token_management(request):
+    """Token management page endpoint"""
+    if not _token_handlers:
+        from starlette.responses import HTMLResponse
+        return HTMLResponse("<h1>Token handlers not initialized</h1>")
+    return await _token_handlers.handle_management_page(request)
+
+async def root_info(request):
+    """Root endpoint"""
+    return JSONResponse({
+        "service": "doris-mcp-server",
+        "mode": "multi-worker-full-mcp",
+        "worker_pid": os.getpid(),
+        "mcp_initialized": _worker_initialized,
+        "mcp_version": MCP_VERSION,
+        "endpoints": {
+            "health": "/health",
+            "mcp": "/mcp"
+        }
+    })
+
+@asynccontextmanager
+async def lifespan(app):
+    """Application lifespan manager"""
+    # Startup
+    try:
+        await initialize_worker()
+        # Import logger properly
+        from .utils.logger import get_logger
+        logger = get_logger(__name__)
+        logger.info(f"Worker {os.getpid()} startup completed")
+        
+        yield
+        
+    finally:
+        # Shutdown
+        from .utils.logger import get_logger
+        logger = get_logger(__name__)
+        
+        # Close session manager context
+        if _worker_session_manager_context:
+            try:
+                await _worker_session_manager_context.__aexit__(None, None, None)
+                logger.info(f"Worker {os.getpid()} session manager context closed")
+            except Exception as e:
+                logger.error(f"Error closing worker session manager context: {e}")
+        
+        if _worker_connection_manager:
+            try:
+                await _worker_connection_manager.close()
+                logger.info(f"Worker {os.getpid()} connection manager closed")
+            except Exception as e:
+                logger.error(f"Error closing worker connection manager: {e}")
+        
+        if _worker_security_manager:
+            try:
+                await _worker_security_manager.shutdown()
+                logger.info(f"Worker {os.getpid()} security manager shutdown completed")
+            except Exception as e:
+                logger.error(f"Error shutting down worker security manager: {e}")
+        
+        # Shutdown logging system
+        try:
+            from .utils.logger import shutdown_logging
+            shutdown_logging()
+        except Exception as e:
+            logger.error(f"Error shutting down logging system: {e}")
+
+async def mcp_asgi_app(scope, receive, send):
+    """ASGI app that handles MCP requests"""
+    if not _worker_initialized:
+        # Send error response if worker not initialized
+        await send({
+            'type': 'http.response.start',
+            'status': 503,
+            'headers': [(b'content-type', b'application/json')]
+        })
+        await send({
+            'type': 'http.response.body',
+            'body': b'{"error": "Worker not initialized"}'
+        })
+        return
+    
+    # Import logger properly
+    from .utils.logger import get_logger
+    logger = get_logger(__name__)
+    
+    # Get request path for logging
+    path = scope.get('path', '')
+    method = scope.get('method', 'UNKNOWN')
+    logger.debug(f"Worker {os.getpid()} handling MCP request: {method} {path}")
+    
+    # Handle the request directly without nested run context
+    await _worker_session_manager.handle_request(scope, receive, send)
+
+# Create Starlette app with basic routes
+basic_app = Starlette(
+    debug=True,
+    routes=[
+        Route("/", root_info, methods=["GET"]),
+        Route("/health", health_check, methods=["GET"]),
+        # OAuth endpoints
+        Route("/auth/login", oauth_login, methods=["GET"]),
+        Route("/auth/callback", oauth_callback, methods=["GET"]),
+        Route("/auth/provider", oauth_provider_info, methods=["GET"]),
+        Route("/auth/demo", oauth_demo, methods=["GET"]),
+        # Token management endpoints
+        Route("/token/create", token_create, methods=["GET", "POST"]),
+        Route("/token/revoke", token_revoke, methods=["GET", "DELETE"]),
+        Route("/token/list", token_list, methods=["GET"]),
+        Route("/token/stats", token_stats, methods=["GET"]),
+        Route("/token/cleanup", token_cleanup, methods=["GET", "POST"]),
+        Route("/token/management", token_management, methods=["GET"]),
+    ],
+    lifespan=lifespan
+)
+
+# Create main ASGI app that routes between basic app and MCP
+async def app(scope, receive, send):
+    """Main ASGI app that routes requests"""
+    path = scope.get('path', '/')
+    
+    if path == "/mcp" or path.startswith('/mcp/'):
+        # Handle MCP requests with session manager
+        await mcp_asgi_app(scope, receive, send)
+    else:
+        # Handle other requests with basic Starlette app (includes auth endpoints)
+        await basic_app(scope, receive, send)

doris_mcp_server/tools/prompts_manager.py

@@ -31,6 +31,7 @@ from mcp.types import (
 )
 
 from ..utils.db import DorisConnectionManager
+from ..utils.sql_security_utils import get_auth_context
 
 
 class PromptTemplate:
@@ -422,7 +423,8 @@ Please generate accurate and efficient SQL queries based on the above requiremen
             AND table_type = 'BASE TABLE'
             """
 
-            db_result = await connection.execute(db_info_sql)
+            auth_context = get_auth_context()
+            db_result = await connection.execute(db_info_sql, auth_context=auth_context)
             db_info = db_result.data[0] if db_result.data else {}
 
             # Get main table list
@@ -438,7 +440,7 @@ Please generate accurate and efficient SQL queries based on the above requiremen
             LIMIT 10
             """
 
-            tables_result = await connection.execute(tables_sql)
+            tables_result = await connection.execute(tables_sql, auth_context=auth_context)
 
             context = f"""Current database statistics:
 - Total number of tables: {db_info.get("table_count", 0)}

doris_mcp_server/tools/resources_manager.py

@@ -26,6 +26,7 @@ from typing import Any
 from mcp.types import Resource
 
 from ..utils.db import DorisConnectionManager
+from ..utils.sql_security_utils import get_auth_context
 
 
 class TableMetadata:
@@ -169,7 +170,8 @@ class DorisResourcesManager:
         ORDER BY table_name
         """
 
-        result = await connection.execute(tables_query)
+        auth_context = get_auth_context()
+        result = await connection.execute(tables_query, auth_context=auth_context)
         tables = []
 
         for row in result.data:
@@ -204,7 +206,8 @@ class DorisResourcesManager:
         ORDER BY ordinal_position
         """
 
-        result = await connection.execute(columns_query, (table_name,))
+        auth_context = get_auth_context()
+        result = await connection.execute(columns_query, params=(table_name,), auth_context=auth_context)
         return [dict(row) for row in result.data]
 
     async def _get_view_metadata(self) -> list[ViewMetadata]:
@@ -226,7 +229,8 @@ class DorisResourcesManager:
         ORDER BY table_name
         """
 
-        result = await connection.execute(views_query)
+        auth_context = get_auth_context()
+        result = await connection.execute(views_query, auth_context=auth_context)
         views = []
 
         for row in result.data:
@@ -257,7 +261,8 @@ class DorisResourcesManager:
         AND table_name = %s
         """
 
-        table_result = await connection.execute(table_info_query, (table_name,))
+        auth_context = get_auth_context()
+        table_result = await connection.execute(table_info_query, params=(table_name,), auth_context=auth_context)
         if not table_result.data:
             raise ValueError(f"Table {table_name} does not exist")
 
@@ -295,7 +300,8 @@ class DorisResourcesManager:
         ORDER BY index_name, seq_in_index
         """
 
-        result = await connection.execute(indexes_query, (table_name,))
+        auth_context = get_auth_context()
+        result = await connection.execute(indexes_query, params=(table_name,), auth_context=auth_context)
         return [dict(row) for row in result.data]
 
     async def _get_view_definition(self, view_name: str) -> str:
@@ -312,7 +318,8 @@ class DorisResourcesManager:
         AND table_name = %s
         """
 
-        result = await connection.execute(view_query, (view_name,))
+        auth_context = get_auth_context()
+        result = await connection.execute(view_query, params=(view_name,), auth_context=auth_context)
         if not result.data:
             raise ValueError(f"View {view_name} does not exist")
 
@@ -340,7 +347,8 @@ class DorisResourcesManager:
         AND table_type = 'BASE TABLE'
         """
 
-        table_result = await connection.execute(table_stats_query)
+        auth_context = get_auth_context()
+        table_result = await connection.execute(table_stats_query, auth_context=auth_context)
         table_stats = table_result.data[0] if table_result.data else {}
 
         # Get view statistics
@@ -350,7 +358,7 @@ class DorisResourcesManager:
         WHERE table_schema = DATABASE()
         """
 
-        view_result = await connection.execute(view_stats_query)
+        view_result = await connection.execute(view_stats_query, auth_context=auth_context)
         view_stats = view_result.data[0] if view_result.data else {}
 
         stats_info = {

doris_mcp_server/utils/adbc_query_tools.py

@@ -0,0 +1,542 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+"""
+Apache Doris ADBC Query Tools
+High-performance data querying using Apache Arrow Flight SQL protocol
+"""
+
+import os
+import socket
+import time
+from datetime import datetime
+from typing import Any, Dict, List, Optional
+
+from ..utils.logger import get_logger
+from ..utils.db import DorisConnectionManager
+from ..utils.sql_security_utils import get_auth_context
+
+logger = get_logger(__name__)
+
+
+def _convert_numpy_types(obj):
+    """Convert numpy types to native Python types for JSON serialization"""
+    try:
+        # Import numpy only when needed
+        import numpy as np
+        import pandas as pd
+        
+        if isinstance(obj, np.integer):
+            return int(obj)
+        elif isinstance(obj, np.floating):
+            return float(obj)
+        elif isinstance(obj, np.bool_):
+            return bool(obj)
+        elif isinstance(obj, np.ndarray):
+            return obj.tolist()
+        elif isinstance(obj, (pd.Timestamp, pd.NaT.__class__)):
+            return str(obj)
+        elif pd.isna(obj):
+            return None
+        else:
+            return obj
+    except ImportError:
+        # If numpy/pandas not available, return as-is
+        return obj
+
+
+def _convert_dataframe_to_json_serializable(df):
+    """Convert DataFrame to JSON serializable format"""
+    try:
+        import pandas as pd
+        import numpy as np
+        
+        # Convert DataFrame to records
+        records = df.to_dict('records')
+        
+        # Convert each record's values
+        converted_records = []
+        for record in records:
+            converted_record = {}
+            for key, value in record.items():
+                converted_record[key] = _convert_numpy_types(value)
+            converted_records.append(converted_record)
+        
+        return converted_records
+    except ImportError:
+        # Fallback to basic dict conversion
+        return df.to_dict('records')
+
+
+class DorisADBCQueryTools:
+    """ADBC Query Tools for high-performance data transfer using Arrow Flight SQL"""
+    
+    def __init__(self, connection_manager: DorisConnectionManager):
+        self.connection_manager = connection_manager
+        self.adbc_client = None
+        self.flight_sql_module = None
+        self.adbc_manager_module = None
+        
+    async def exec_adbc_query(
+        self,
+        sql: str,
+        max_rows: int | None = None,
+        timeout: int | None = None,
+        return_format: str | None = None
+    ) -> Dict[str, Any]:
+        """
+        Execute SQL query using ADBC (Arrow Flight SQL) protocol
+        
+        Args:
+            sql: SQL statement to execute
+            max_rows: Maximum number of rows to return (uses config default if None)
+            timeout: Query timeout in seconds (uses config default if None)
+            return_format: Format for returned data ("arrow", "pandas", "dict", uses config default if None)
+            
+        Returns:
+            Query results in specified format with metadata
+        """
+        try:
+            start_time = time.time()
+            
+            # Use configuration defaults if parameters not specified
+            adbc_config = self.connection_manager.config.adbc
+            max_rows = max_rows if max_rows is not None else adbc_config.default_max_rows
+            timeout = timeout if timeout is not None else adbc_config.default_timeout
+            return_format = return_format if return_format is not None else adbc_config.default_return_format
+            
+            # Step 1: Check environment variables and port availability
+            port_check_result = await self._check_arrow_flight_ports()
+            if not port_check_result["success"]:
+                return port_check_result
+                
+            # Step 2: Import required ADBC modules
+            import_result = await self._import_adbc_modules()
+            if not import_result["success"]:
+                return import_result
+                
+            # Step 3: Create ADBC connection
+            connection_result = await self._create_adbc_connection()
+            if not connection_result["success"]:
+                return connection_result
+                
+            # Step 4: Execute query using ADBC
+            query_result = await self._execute_query_with_adbc(
+                sql, max_rows, timeout, return_format
+            )
+            
+            execution_time = time.time() - start_time
+            
+            if query_result["success"]:
+                query_result["execution_time"] = round(execution_time, 3)
+                query_result["protocol"] = "ADBC_Arrow_Flight_SQL"
+                query_result["timestamp"] = datetime.now().isoformat()
+                
+            return query_result
+            
+        except Exception as e:
+            logger.error(f"ADBC query execution failed: {str(e)}")
+            return {
+                "success": False,
+                "error": f"ADBC query execution failed: {str(e)}",
+                "error_type": "execution_error",
+                "timestamp": datetime.now().isoformat()
+            }
+    
+    async def _check_arrow_flight_ports(self) -> Dict[str, Any]:
+        """Check Arrow Flight SQL port configuration and availability"""
+        try:
+            # Check environment variables
+            fe_port = os.getenv("FE_ARROW_FLIGHT_SQL_PORT")
+            be_port = os.getenv("BE_ARROW_FLIGHT_SQL_PORT")
+            
+            if not fe_port:
+                return {
+                    "success": False,
+                    "error": "Missing environment variable FE_ARROW_FLIGHT_SQL_PORT, please configure Arrow Flight SQL FE port in .env file",
+                    "error_type": "missing_fe_port_config"
+                }
+                
+            if not be_port:
+                return {
+                    "success": False,
+                    "error": "Missing environment variable BE_ARROW_FLIGHT_SQL_PORT, please configure Arrow Flight SQL BE port in .env file",
+                    "error_type": "missing_be_port_config"
+                }
+            
+            # Convert to integer and validate
+            try:
+                fe_port = int(fe_port)
+                be_port = int(be_port)
+            except ValueError:
+                return {
+                    "success": False,
+                    "error": "Invalid Arrow Flight SQL port configuration, please ensure FE_ARROW_FLIGHT_SQL_PORT and BE_ARROW_FLIGHT_SQL_PORT are valid numbers",
+                    "error_type": "invalid_port_format"
+                }
+            
+            # Get host address
+            db_config = self.connection_manager.config.database
+            fe_host = db_config.host
+            
+            # Check FE Arrow Flight SQL port availability
+            fe_available = self._check_port_connectivity(fe_host, fe_port)
+            if not fe_available:
+                return {
+                    "success": False,
+                    "error": f"Cannot connect to FE Arrow Flight SQL port {fe_host}:{fe_port}, please check if service is running",
+                    "error_type": "fe_port_unavailable",
+                    "fe_host": fe_host,
+                    "fe_port": fe_port
+                }
+            
+            # Get BE host list
+            be_hosts = await self._get_be_hosts()
+            if not be_hosts:
+                return {
+                    "success": False,
+                    "error": "Cannot get BE node information, please check cluster status",
+                    "error_type": "no_be_hosts"
+                }
+            
+            # Check at least one BE Arrow Flight SQL port availability
+            be_available_count = 0
+            be_check_results = []
+            
+            for be_host in be_hosts[:3]:  # Check first 3 BE nodes
+                be_available = self._check_port_connectivity(be_host, be_port)
+                be_check_results.append({
+                    "host": be_host,
+                    "port": be_port,
+                    "available": be_available
+                })
+                if be_available:
+                    be_available_count += 1
+            
+            if be_available_count == 0:
+                return {
+                    "success": False,
+                    "error": f"Cannot connect to any BE Arrow Flight SQL port (port: {be_port}), please check if BE services are running",
+                    "error_type": "no_be_ports_available",
+                    "be_check_results": be_check_results
+                }
+            
+            return {
+                "success": True,
+                "fe_host": fe_host,
+                "fe_port": fe_port,
+                "be_port": be_port,
+                "be_hosts": be_hosts,
+                "be_available_count": be_available_count,
+                "be_check_results": be_check_results
+            }
+            
+        except Exception as e:
+            logger.error(f"Arrow Flight port check failed: {str(e)}")
+            return {
+                "success": False,
+                "error": f"Arrow Flight port check failed: {str(e)}",
+                "error_type": "port_check_error"
+            }
+    
+    def _check_port_connectivity(self, host: str, port: int, timeout: int | None = None) -> bool:
+        """Check port connectivity"""
+        try:
+            # Use config timeout if not specified
+            if timeout is None:
+                timeout = self.connection_manager.config.adbc.connection_timeout
+            
+            with socket.create_connection((host, port), timeout=timeout):
+                return True
+        except (socket.timeout, socket.error, OSError):
+            return False
+    
+    async def _get_be_hosts(self) -> List[str]:
+        """Get BE host list"""
+        try:
+            db_config = self.connection_manager.config.database
+            
+            # Use configured BE hosts first
+            if db_config.be_hosts:
+                logger.info(f"Using configured BE hosts: {db_config.be_hosts}")
+                return db_config.be_hosts
+            
+            # Get BE nodes via SHOW BACKENDS
+            logger.info("No BE hosts configured, getting BE node information via SHOW BACKENDS")
+            connection = await self.connection_manager.get_connection("query")
+            auth_context = get_auth_context()
+            result = await connection.execute("SHOW BACKENDS", auth_context=auth_context)
+            
+            be_hosts = []
+            for row in result.data:
+                host = row.get("Host")
+                alive = row.get("Alive", "").lower()
+                if host and alive == "true":
+                    be_hosts.append(host)
+            
+            logger.info(f"Got {len(be_hosts)} active BE nodes from SHOW BACKENDS")
+            return be_hosts
+            
+        except Exception as e:
+            logger.error(f"Failed to get BE hosts: {str(e)}")
+            return []
+    
+    async def _import_adbc_modules(self) -> Dict[str, Any]:
+        """Import ADBC related modules"""
+        try:
+            # Import ADBC Driver Manager
+            try:
+                import adbc_driver_manager
+                self.adbc_manager_module = adbc_driver_manager
+            except ImportError:
+                return {
+                    "success": False,
+                    "error": "Missing adbc_driver_manager module, please install: pip install adbc_driver_manager",
+                    "error_type": "missing_adbc_manager"
+                }
+            
+            # Import ADBC Flight SQL Driver
+            try:
+                import adbc_driver_flightsql.dbapi as flight_sql
+                self.flight_sql_module = flight_sql
+            except ImportError:
+                return {
+                    "success": False,
+                    "error": "Missing adbc_driver_flightsql module, please install: pip install adbc_driver_flightsql",
+                    "error_type": "missing_flight_sql_driver"
+                }
+            
+            return {
+                "success": True,
+                "adbc_manager_version": getattr(adbc_driver_manager, '__version__', 'unknown'),
+                "flight_sql_version": getattr(flight_sql, '__version__', 'unknown')
+            }
+            
+        except Exception as e:
+            logger.error(f"ADBC module import failed: {str(e)}")
+            return {
+                "success": False,
+                "error": f"ADBC module import failed: {str(e)}",
+                "error_type": "import_error"
+            }
+    
+    async def _create_adbc_connection(self) -> Dict[str, Any]:
+        """Create ADBC connection"""
+        try:
+            db_config = self.connection_manager.config.database
+            fe_port = int(os.getenv("FE_ARROW_FLIGHT_SQL_PORT"))
+            
+            # Build connection URI
+            uri = f"grpc://{db_config.host}:{fe_port}"
+            
+            # Create database connection parameters
+            db_kwargs = {
+                self.adbc_manager_module.DatabaseOptions.USERNAME.value: db_config.user,
+                self.adbc_manager_module.DatabaseOptions.PASSWORD.value: db_config.password,
+            }
+            
+            # Create connection
+            self.adbc_client = self.flight_sql_module.connect(
+                uri=uri,
+                db_kwargs=db_kwargs
+            )
+            
+            return {
+                "success": True,
+                "uri": uri,
+                "connection_established": True
+            }
+            
+        except Exception as e:
+            logger.error(f"Failed to create ADBC connection: {str(e)}")
+            return {
+                "success": False,
+                "error": f"Failed to create ADBC connection: {str(e)}",
+                "error_type": "connection_error"
+            }
+    
+    async def _execute_query_with_adbc(
+        self,
+        sql: str,
+        max_rows: int,
+        timeout: int,
+        return_format: str
+    ) -> Dict[str, Any]:
+        """Execute query using ADBC"""
+        try:
+            if not self.adbc_client:
+                return {
+                    "success": False,
+                    "error": "ADBC connection not established",
+                    "error_type": "no_connection"
+                }
+            
+            # SECURITY FIX: Perform SQL security validation before executing
+            auth_context = get_auth_context()
+            if self.connection_manager.security_manager:
+                # Always perform security validation, even without auth_context
+                # Use a default context for basic SQL security checks
+                validation_result = await self.connection_manager.security_manager.validate_sql_security(sql, auth_context)
+                if not validation_result.is_valid:
+                    return {
+                        "success": False,
+                        "error": f"SQL security validation failed: {validation_result.error_message}",
+                        "error_type": "security_violation",
+                        "risk_level": validation_result.risk_level
+                    }
+            
+            cursor = self.adbc_client.cursor()
+            start_time = time.time()
+            
+            # Execute query
+            cursor.execute(sql)
+            
+            # Get results based on return format
+            if return_format == "arrow":
+                # Return Arrow format
+                arrow_data = cursor.fetchallarrow()
+                
+                # Limit rows
+                if len(arrow_data) > max_rows:
+                    arrow_data = arrow_data.slice(0, max_rows)
+                
+                # Convert Arrow data to serializable format
+                preview_df = arrow_data.to_pandas().head(10) if len(arrow_data) > 0 else None
+                result_data = {
+                    "format": "arrow",
+                    "num_rows": len(arrow_data),
+                    "num_columns": len(arrow_data.schema),
+                    "column_names": arrow_data.schema.names,
+                    "column_types": [str(field.type) for field in arrow_data.schema],
+                    "data_preview": _convert_dataframe_to_json_serializable(preview_df) if preview_df is not None else [],
+                    "total_bytes": arrow_data.nbytes if hasattr(arrow_data, 'nbytes') else 0
+                }
+                
+            elif return_format == "pandas":
+                # Return Pandas DataFrame
+                df = cursor.fetch_df()
+                
+                # Limit rows
+                if len(df) > max_rows:
+                    df = df.head(max_rows)
+                
+                result_data = {
+                    "format": "pandas",
+                    "num_rows": len(df),
+                    "num_columns": len(df.columns),
+                    "column_names": df.columns.tolist(),
+                    "column_types": df.dtypes.astype(str).tolist(),
+                    "data": _convert_dataframe_to_json_serializable(df),
+                    "memory_usage": int(df.memory_usage(deep=True).sum())
+                }
+                
+            else:  # return_format == "dict"
+                # Return dictionary format
+                arrow_data = cursor.fetchallarrow()
+                df = arrow_data.to_pandas()
+                
+                # Limit rows
+                if len(df) > max_rows:
+                    df = df.head(max_rows)
+                
+                result_data = {
+                    "format": "dict",
+                    "num_rows": len(df),
+                    "num_columns": len(df.columns),
+                    "column_names": df.columns.tolist(),
+                    "column_types": df.dtypes.astype(str).tolist(),
+                    "data": _convert_dataframe_to_json_serializable(df)
+                }
+            
+            execution_time = time.time() - start_time
+            
+            cursor.close()
+            
+            return {
+                "success": True,
+                "result": result_data,
+                "execution_time": round(execution_time, 3),
+                "sql": sql,
+                "max_rows_applied": len(result_data.get("data", [])) >= max_rows
+            }
+            
+        except Exception as e:
+            logger.error(f"ADBC query execution failed: {str(e)}")
+            return {
+                "success": False,
+                "error": f"ADBC query execution failed: {str(e)}",
+                "error_type": "query_execution_error",
+                "sql": sql
+            }
+    
+    async def get_adbc_connection_info(self) -> Dict[str, Any]:
+        """Get ADBC connection information and status"""
+        try:
+            # Check port status
+            port_status = await self._check_arrow_flight_ports()
+            
+            # Check module status
+            module_status = await self._import_adbc_modules()
+            
+            # Get configuration information
+            db_config = self.connection_manager.config.database
+            fe_port = os.getenv("FE_ARROW_FLIGHT_SQL_PORT")
+            be_port = os.getenv("BE_ARROW_FLIGHT_SQL_PORT")
+            
+            connection_info = {
+                "adbc_available": module_status["success"],
+                "ports_available": port_status["success"],
+                "configuration": {
+                    "fe_host": db_config.host,
+                    "fe_arrow_flight_port": fe_port,
+                    "be_arrow_flight_port": be_port,
+                    "user": db_config.user
+                },
+                "port_status": port_status,
+                "module_status": module_status,
+                "timestamp": datetime.now().isoformat()
+            }
+            
+            if port_status["success"] and module_status["success"]:
+                connection_info["status"] = "ready"
+                connection_info["message"] = "ADBC Arrow Flight SQL connection ready"
+            else:
+                connection_info["status"] = "not_ready"
+                errors = []
+                if not port_status["success"]:
+                    errors.append(port_status["error"])
+                if not module_status["success"]:
+                    errors.append(module_status["error"])
+                connection_info["message"] = "; ".join(errors)
+            
+            return connection_info
+            
+        except Exception as e:
+            logger.error(f"Failed to get ADBC connection information: {str(e)}")
+            return {
+                "status": "error",
+                "error": f"Failed to get ADBC connection information: {str(e)}",
+                "timestamp": datetime.now().isoformat()
+            }
+    
+    def __del__(self):
+        """Cleanup resources"""
+        try:
+            if self.adbc_client:
+                self.adbc_client.close()
+        except:
+            pass 

doris_mcp_server/utils/config.py

@@ -32,6 +32,8 @@ try:
 except ImportError:
     load_dotenv = None
 
+from .logger import get_logger
+
 
 @dataclass
 class DatabaseConfig:
@@ -41,38 +43,105 @@ class DatabaseConfig:
     port: int = 9030
     user: str = "root"
     password: str = ""
-    database: str = "test"
-    charset: str = "utf8mb4"
+    database: str = "information_schema"
+    charset: str = "UTF8"
+
+    # FE HTTP API port for profile and other HTTP APIs
+    fe_http_port: int = 8030
+    
+    # BE nodes configuration for external access
+    # If be_hosts is empty, will use "show backends" to get BE nodes
+    be_hosts: list[str] = field(default_factory=list)
+    be_webserver_port: int = 8040
+
+    # Arrow Flight SQL Configuration (Required for ADBC tools)
+    fe_arrow_flight_sql_port: int | None = None
+    be_arrow_flight_sql_port: int | None = None
 
     # Connection pool configuration
-    min_connections: int = 5
+    # Note: min_connections is fixed at 0 to avoid at_eof connection issues
+    # This prevents pre-creation of connections which can cause state problems
+    _min_connections: int = field(default=0, init=False)  # Internal use only, always 0
     max_connections: int = 20
     connection_timeout: int = 30
     health_check_interval: int = 60
     max_connection_age: int = 3600
 
+    @property
+    def min_connections(self) -> int:
+        """Minimum connections is always 0 to prevent at_eof issues"""
+        return self._min_connections
+
 
 @dataclass
 class SecurityConfig:
     """Security configuration"""
 
-    # Authentication configuration
-    auth_type: str = "token"  # token, basic, oauth
-    token_secret: str = "default_secret"
+    # Independent authentication switches - any one enabled allows that method
+    enable_token_auth: bool = False  # Enable token-based authentication (default: disabled)
+    enable_jwt_auth: bool = False    # Enable JWT authentication (default: disabled)
+    enable_oauth_auth: bool = False  # Enable OAuth 2.0/OIDC authentication (default: disabled)
+    
+    # Legacy configuration (kept for backward compatibility)
+    auth_type: str = "token"  # jwt, token, basic, oauth (deprecated: use individual switches)
+    token_secret: str = "default_secret"  # Legacy token secret for backward compatibility
     token_expiry: int = 3600
+    
+    # Enhanced Token Authentication Configuration
+    token_file_path: str = "tokens.json"  # Path to token configuration file
+    enable_token_expiry: bool = True  # Enable token expiration
+    default_token_expiry_hours: int = 24 * 30  # Default expiry: 30 days
+    token_hash_algorithm: str = "sha256"  # Token hashing algorithm: sha256, sha512
+    
+    # Token Management Security (New in v0.6.0)
+    enable_http_token_management: bool = False  # Enable HTTP token management endpoints (default: disabled for security)
+    token_management_admin_token: str = ""  # Admin token for token management endpoints (required if HTTP management enabled)
+    token_management_allowed_ips: list[str] = field(default_factory=lambda: ["127.0.0.1", "::1", "localhost"])  # Allowed IPs for token management
+    require_admin_auth: bool = True  # Require admin authentication for token management (default: true)
+    
+    # JWT Configuration
+    jwt_algorithm: str = "RS256"  # RS256, ES256, HS256
+    jwt_issuer: str = "doris-mcp-server"
+    jwt_audience: str = "doris-mcp-client"
+    jwt_private_key_path: str = ""
+    jwt_public_key_path: str = ""
+    jwt_secret_key: str = ""  # Only used for HS256 algorithm
+    jwt_access_token_expiry: int = 3600  # 1 hour
+    jwt_refresh_token_expiry: int = 86400  # 24 hours
+    enable_token_refresh: bool = True
+    enable_token_revocation: bool = True
+    key_rotation_interval: int = 30 * 24 * 3600  # 30 days in seconds
+    
+    # JWT Security Features
+    jwt_require_iat: bool = True  # Require "issued at" claim
+    jwt_require_exp: bool = True  # Require "expires at" claim
+    jwt_require_nbf: bool = False  # Require "not before" claim
+    jwt_leeway: int = 10  # Clock skew tolerance in seconds
+    jwt_verify_signature: bool = True  # Verify JWT signature
+    jwt_verify_audience: bool = True  # Verify audience claim
+    jwt_verify_issuer: bool = True  # Verify issuer claim
 
     # SQL security configuration
+    enable_security_check: bool = True  # Main switch: whether to enable SQL security check
     blocked_keywords: list[str] = field(
         default_factory=lambda: [
+            # DDL Operations (Data Definition Language)
             "DROP",
-            "DELETE",
-            "TRUNCATE",
+            "CREATE", 
             "ALTER",
-            "CREATE",
+            "TRUNCATE",
+            # DML Operations (Data Manipulation Language)
+            "DELETE",
             "INSERT",
             "UPDATE",
+            # DCL Operations (Data Control Language)
             "GRANT",
             "REVOKE",
+            # System Operations
+            "EXEC",
+            "EXECUTE", 
+            "SHUTDOWN",
+            "KILL",
         ]
     )
     max_query_complexity: int = 100
@@ -85,6 +154,45 @@ class SecurityConfig:
     enable_masking: bool = True
     masking_rules: list[dict[str, Any]] = field(default_factory=list)
 
+    # OAuth 2.0/OIDC Configuration
+    oauth_enabled: bool = False
+    oauth_provider: str = ""  # 'google', 'microsoft', 'github', 'custom'
+    oauth_client_id: str = ""
+    oauth_client_secret: str = ""
+    oauth_redirect_uri: str = "http://localhost:3000/auth/callback"
+    
+    # OIDC Discovery
+    oidc_discovery_url: str = ""  # e.g., https://accounts.google.com/.well-known/openid_configuration
+    oauth_authorization_endpoint: str = ""
+    oauth_token_endpoint: str = ""
+    oauth_userinfo_endpoint: str = ""
+    oauth_jwks_uri: str = ""
+    
+    # OAuth Scopes and Settings
+    oauth_scopes: list[str] = field(default_factory=list)
+    oauth_state_expiry: int = 600  # State parameter expiry in seconds (10 minutes)
+    oauth_pkce_enabled: bool = True  # Enable PKCE for better security
+    oauth_nonce_enabled: bool = True  # Enable nonce for OIDC
+    
+    # User Mapping Configuration
+    oauth_user_id_claim: str = "sub"  # JWT claim for user ID
+    oauth_email_claim: str = "email"
+    oauth_name_claim: str = "name"
+    oauth_roles_claim: str = "roles"  # Custom claim for roles
+    oauth_default_roles: list[str] = field(default_factory=lambda: ["oauth_user"])
+    
+    def __post_init__(self):
+        """Initialize default OAuth scopes based on provider"""
+        if not self.oauth_scopes and self.oauth_provider:
+            if self.oauth_provider == "google":
+                self.oauth_scopes = ["openid", "email", "profile"]
+            elif self.oauth_provider == "microsoft":
+                self.oauth_scopes = ["openid", "profile", "email", "User.Read"]
+            elif self.oauth_provider == "github":
+                self.oauth_scopes = ["user:email", "read:user"]
+            else:
+                self.oauth_scopes = ["openid", "email", "profile"]
+
 
 @dataclass
 class PerformanceConfig:
@@ -102,6 +210,52 @@ class PerformanceConfig:
     # Connection pool optimization configuration
     connection_pool_size: int = 20
     idle_timeout: int = 1800
+    
+    # Response content size limit (characters)
+    max_response_content_size: int = 4096
+
+
+@dataclass
+class DataQualityConfig:
+    """Data quality analysis configuration"""
+
+    # Column analysis configuration
+    max_columns_per_batch: int = 20  # Maximum columns to analyze in a single batch
+    default_sample_size: int = 100000  # Default sample size for analysis
+    
+    # Sampling strategy configuration
+    small_table_threshold: int = 100000  # Tables smaller than this use full table analysis
+    medium_table_threshold: int = 1000000  # Tables smaller than this use simple LIMIT sampling
+    # Tables larger than medium_table_threshold use systematic sampling
+    
+    # Performance optimization
+    enable_batch_analysis: bool = True  # Enable batch analysis for multiple columns
+    batch_timeout: int = 300  # Timeout for batch analysis in seconds
+    
+    # Accuracy vs Performance trade-off
+    enable_fast_mode: bool = False  # Use approximate algorithms for faster results
+    fast_mode_sample_size: int = 10000  # Sample size for fast mode
+    
+    # Statistical analysis configuration
+    enable_distribution_analysis: bool = True  # Enable distribution analysis
+    histogram_bins: int = 20  # Number of bins for histogram analysis
+    percentile_levels: list[float] = field(default_factory=lambda: [0.25, 0.5, 0.75, 0.95, 0.99])  # Percentile levels to calculate
+
+
+@dataclass
+class ADBCConfig:
+    """ADBC (Arrow Flight SQL) configuration"""
+
+    # Default query parameters
+    default_max_rows: int = 100000
+    default_timeout: int = 60
+    default_return_format: str = "arrow"  # "arrow", "pandas", "dict"
+    
+    # Connection timeout for ADBC
+    connection_timeout: int = 30
+    
+    # Whether to enable ADBC tools
+    enabled: bool = True
 
 
 @dataclass
@@ -117,6 +271,11 @@ class LoggingConfig:
     # Audit log configuration
     enable_audit: bool = True
     audit_file_path: str | None = None
+    
+    # Log cleanup configuration
+    enable_cleanup: bool = True
+    max_age_days: int = 30
+    cleanup_interval_hours: int = 24
 
 
 @dataclass
@@ -125,11 +284,11 @@ class MonitoringConfig:
 
     # Metrics collection configuration
     enable_metrics: bool = True
-    metrics_port: int = 8081
+    metrics_port: int = 3001
     metrics_path: str = "/metrics"
 
     # Health check configuration
-    health_check_port: int = 8082
+    health_check_port: int = 3002
     health_check_path: str = "/health"
 
     # Alert configuration
@@ -143,15 +302,22 @@ class DorisConfig:
 
     # Basic configuration
     server_name: str = "doris-mcp-server"
-    server_version: str = "1.0.0"
-    server_port: int = 8080
+    server_version: str = "0.4.1"
+    server_host: str = "localhost"
+    server_port: int = 3000
+    transport: str = "stdio"
+    
+    # Temporary files configuration
+    temp_files_dir: str = "tmp"  # Temporary files directory for Explain and Profile outputs
 
     # Sub-configuration modules
     database: DatabaseConfig = field(default_factory=DatabaseConfig)
     security: SecurityConfig = field(default_factory=SecurityConfig)
     performance: PerformanceConfig = field(default_factory=PerformanceConfig)
+    data_quality: DataQualityConfig = field(default_factory=DataQualityConfig)
     logging: LoggingConfig = field(default_factory=LoggingConfig)
     monitoring: MonitoringConfig = field(default_factory=MonitoringConfig)
+    adbc: ADBCConfig = field(default_factory=ADBCConfig)
 
     # Custom configuration
     custom_config: dict[str, Any] = field(default_factory=dict)
@@ -180,6 +346,9 @@ class DorisConfig:
     @classmethod
     def from_env(cls, env_file: str | None = None) -> "DorisConfig":
         """Load configuration from environment variables
+
+        The kv pairs in the. env file will be loaded as environment variables,
+        but the existing environment variables will not be overridden.
         
         Args:
             env_file: .env file path, if None, search in the following order:
@@ -199,7 +368,7 @@ class DorisConfig:
                 env_files = [".env", ".env.local", ".env.production", ".env.development"]
                 for env_path in env_files:
                     if Path(env_path).exists():
-                        load_dotenv(env_path)
+                        load_dotenv(env_path, override=False)
                         logging.getLogger(__name__).info(f"Loaded environment configuration file: {env_path}")
                         break
                 else:
@@ -209,17 +378,45 @@ class DorisConfig:
 
         config = cls()
 
-        # Database configuration
-        config.database.host = os.getenv("DORIS_HOST", config.database.host)
-        config.database.port = int(os.getenv("DORIS_PORT", str(config.database.port)))
-        config.database.user = os.getenv("DORIS_USER", config.database.user)
-        config.database.password = os.getenv("DORIS_PASSWORD", config.database.password)
-        config.database.database = os.getenv("DORIS_DATABASE", config.database.database)
+        # Database configuration - handle empty strings properly
+        doris_host = os.getenv("DORIS_HOST", "").strip()
+        config.database.host = doris_host if doris_host else config.database.host
+        
+        doris_port = os.getenv("DORIS_PORT", "").strip()
+        if doris_port and doris_port.isdigit():
+            config.database.port = int(doris_port)
+        
+        doris_user = os.getenv("DORIS_USER", "").strip()
+        config.database.user = doris_user if doris_user else config.database.user
+        
+        doris_password = os.getenv("DORIS_PASSWORD", "")
+        config.database.password = doris_password if doris_password else config.database.password
+        
+        doris_database = os.getenv("DORIS_DATABASE", "").strip()
+        config.database.database = doris_database if doris_database else config.database.database
+        
+        doris_fe_http_port = os.getenv("DORIS_FE_HTTP_PORT", "").strip()
+        if doris_fe_http_port and doris_fe_http_port.isdigit():
+            config.database.fe_http_port = int(doris_fe_http_port)
+        
+        # BE nodes configuration
+        be_hosts_env = os.getenv("DORIS_BE_HOSTS", "")
+        if be_hosts_env:
+            config.database.be_hosts = [host.strip() for host in be_hosts_env.split(",") if host.strip()]
+        be_webserver_port = os.getenv("DORIS_BE_WEBSERVER_PORT", "").strip()
+        if be_webserver_port and be_webserver_port.isdigit():
+            config.database.be_webserver_port = int(be_webserver_port)
+        
+        # Arrow Flight SQL Configuration
+        fe_arrow_port_env = os.getenv("FE_ARROW_FLIGHT_SQL_PORT")
+        if fe_arrow_port_env:
+            config.database.fe_arrow_flight_sql_port = int(fe_arrow_port_env)
+        
+        be_arrow_port_env = os.getenv("BE_ARROW_FLIGHT_SQL_PORT")
+        if be_arrow_port_env:
+            config.database.be_arrow_flight_sql_port = int(be_arrow_port_env)
 
         # Connection pool configuration
-        config.database.min_connections = int(
-            os.getenv("DORIS_MIN_CONNECTIONS", str(config.database.min_connections))
-        )
         config.database.max_connections = int(
             os.getenv("DORIS_MAX_CONNECTIONS", str(config.database.max_connections))
         )
@@ -234,6 +431,10 @@ class DorisConfig:
         )
 
         # Security configuration
+        # Independent authentication switches
+        config.security.enable_token_auth = os.getenv("ENABLE_TOKEN_AUTH", str(config.security.enable_token_auth)).lower() == "true"
+        config.security.enable_jwt_auth = os.getenv("ENABLE_JWT_AUTH", str(config.security.enable_jwt_auth)).lower() == "true"
+        config.security.enable_oauth_auth = os.getenv("ENABLE_OAUTH_AUTH", str(config.security.enable_oauth_auth)).lower() == "true"
         config.security.auth_type = os.getenv("AUTH_TYPE", config.security.auth_type)
         config.security.token_secret = os.getenv("TOKEN_SECRET", config.security.token_secret)
         config.security.token_expiry = int(
@@ -245,9 +446,50 @@ class DorisConfig:
         config.security.max_query_complexity = int(
             os.getenv("MAX_QUERY_COMPLEXITY", str(config.security.max_query_complexity))
         )
+        config.security.enable_security_check = (
+            os.getenv("ENABLE_SECURITY_CHECK", str(config.security.enable_security_check).lower()).lower() == "true"
+        )
+        
+        # Handle blocked keywords environment variable configuration
+        # Format: BLOCKED_KEYWORDS="DROP,DELETE,TRUNCATE,ALTER,CREATE,INSERT,UPDATE,GRANT,REVOKE"
+        blocked_keywords_env = os.getenv("BLOCKED_KEYWORDS", "")
+        if blocked_keywords_env:
+            # If environment variable is provided, use keywords list from environment variable
+            config.security.blocked_keywords = [
+                keyword.strip().upper() 
+                for keyword in blocked_keywords_env.split(",") 
+                if keyword.strip()
+            ]
+        # If environment variable is empty, keep default configuration unchanged
+        
         config.security.enable_masking = (
             os.getenv("ENABLE_MASKING", str(config.security.enable_masking).lower()).lower() == "true"
         )
+        
+        # Enhanced Token Authentication configuration
+        config.security.token_file_path = os.getenv("TOKEN_FILE_PATH", config.security.token_file_path)
+        config.security.enable_token_expiry = (
+            os.getenv("ENABLE_TOKEN_EXPIRY", str(config.security.enable_token_expiry).lower()).lower() == "true"
+        )
+        config.security.default_token_expiry_hours = int(
+            os.getenv("DEFAULT_TOKEN_EXPIRY_HOURS", str(config.security.default_token_expiry_hours))
+        )
+        config.security.token_hash_algorithm = os.getenv("TOKEN_HASH_ALGORITHM", config.security.token_hash_algorithm)
+        
+        # Token Management Security Configuration (New in v0.6.0)
+        config.security.enable_http_token_management = (
+            os.getenv("ENABLE_HTTP_TOKEN_MANAGEMENT", str(config.security.enable_http_token_management).lower()).lower() == "true"
+        )
+        config.security.token_management_admin_token = os.getenv("TOKEN_MANAGEMENT_ADMIN_TOKEN", config.security.token_management_admin_token)
+        
+        # Parse allowed IPs from comma-separated string
+        allowed_ips_str = os.getenv("TOKEN_MANAGEMENT_ALLOWED_IPS", "")
+        if allowed_ips_str:
+            config.security.token_management_allowed_ips = [ip.strip() for ip in allowed_ips_str.split(",") if ip.strip()]
+        
+        config.security.require_admin_auth = (
+            os.getenv("REQUIRE_ADMIN_AUTH", str(config.security.require_admin_auth).lower()).lower() == "true"
+        )
 
         # Performance configuration
         config.performance.enable_query_cache = (
@@ -265,6 +507,9 @@ class DorisConfig:
         config.performance.query_timeout = int(
             os.getenv("QUERY_TIMEOUT", str(config.performance.query_timeout))
         )
+        config.performance.max_response_content_size = int(
+            os.getenv("MAX_RESPONSE_CONTENT_SIZE", str(config.performance.max_response_content_size))
+        )
 
         # Logging configuration
         config.logging.level = os.getenv("LOG_LEVEL", config.logging.level)
@@ -273,6 +518,15 @@ class DorisConfig:
             os.getenv("ENABLE_AUDIT", str(config.logging.enable_audit).lower()).lower() == "true"
         )
         config.logging.audit_file_path = os.getenv("AUDIT_FILE_PATH", config.logging.audit_file_path)
+        config.logging.enable_cleanup = (
+            os.getenv("ENABLE_LOG_CLEANUP", str(config.logging.enable_cleanup).lower()).lower() == "true"
+        )
+        config.logging.max_age_days = int(
+            os.getenv("LOG_MAX_AGE_DAYS", str(config.logging.max_age_days))
+        )
+        config.logging.cleanup_interval_hours = int(
+            os.getenv("LOG_CLEANUP_INTERVAL_HOURS", str(config.logging.cleanup_interval_hours))
+        )
 
         # Monitoring configuration
         config.monitoring.enable_metrics = (
@@ -289,10 +543,60 @@ class DorisConfig:
         )
         config.monitoring.alert_webhook_url = os.getenv("ALERT_WEBHOOK_URL", config.monitoring.alert_webhook_url)
 
+        # ADBC configuration
+        config.adbc.default_max_rows = int(
+            os.getenv("ADBC_DEFAULT_MAX_ROWS", str(config.adbc.default_max_rows))
+        )
+        config.adbc.default_timeout = int(
+            os.getenv("ADBC_DEFAULT_TIMEOUT", str(config.adbc.default_timeout))
+        )
+        config.adbc.default_return_format = os.getenv("ADBC_DEFAULT_RETURN_FORMAT", config.adbc.default_return_format)
+        config.adbc.connection_timeout = int(
+            os.getenv("ADBC_CONNECTION_TIMEOUT", str(config.adbc.connection_timeout))
+        )
+        config.adbc.enabled = (
+            os.getenv("ADBC_ENABLED", str(config.adbc.enabled).lower()).lower() == "true"
+        )
+
+        # Data quality configuration
+        config.data_quality.max_columns_per_batch = int(
+            os.getenv("DATA_QUALITY_MAX_COLUMNS_PER_BATCH", str(config.data_quality.max_columns_per_batch))
+        )
+        config.data_quality.default_sample_size = int(
+            os.getenv("DATA_QUALITY_DEFAULT_SAMPLE_SIZE", str(config.data_quality.default_sample_size))
+        )
+        config.data_quality.small_table_threshold = int(
+            os.getenv("DATA_QUALITY_SMALL_TABLE_THRESHOLD", str(config.data_quality.small_table_threshold))
+        )
+        config.data_quality.medium_table_threshold = int(
+            os.getenv("DATA_QUALITY_MEDIUM_TABLE_THRESHOLD", str(config.data_quality.medium_table_threshold))
+        )
+        config.data_quality.enable_batch_analysis = (
+            os.getenv("DATA_QUALITY_ENABLE_BATCH_ANALYSIS", str(config.data_quality.enable_batch_analysis).lower()).lower() == "true"
+        )
+        config.data_quality.batch_timeout = int(
+            os.getenv("DATA_QUALITY_BATCH_TIMEOUT", str(config.data_quality.batch_timeout))
+        )
+        config.data_quality.enable_fast_mode = (
+            os.getenv("DATA_QUALITY_ENABLE_FAST_MODE", str(config.data_quality.enable_fast_mode).lower()).lower() == "true"
+        )
+        config.data_quality.fast_mode_sample_size = int(
+            os.getenv("DATA_QUALITY_FAST_MODE_SAMPLE_SIZE", str(config.data_quality.fast_mode_sample_size))
+        )
+        config.data_quality.enable_distribution_analysis = (
+            os.getenv("DATA_QUALITY_ENABLE_DISTRIBUTION_ANALYSIS", str(config.data_quality.enable_distribution_analysis).lower()).lower() == "true"
+        )
+        config.data_quality.histogram_bins = int(
+            os.getenv("DATA_QUALITY_HISTOGRAM_BINS", str(config.data_quality.histogram_bins))
+        )
+
         # Server configuration
         config.server_name = os.getenv("SERVER_NAME", config.server_name)
         config.server_version = os.getenv("SERVER_VERSION", config.server_version)
-        config.server_port = int(os.getenv("SERVER_PORT", str(config.server_port)))
+        server_port = os.getenv("SERVER_PORT", "").strip()
+        if server_port and server_port.isdigit():
+            config.server_port = int(server_port)
+        config.temp_files_dir = os.getenv("TEMP_FILES_DIR", config.temp_files_dir)
 
         return config
 
@@ -302,7 +606,7 @@ class DorisConfig:
         config = cls()
 
         # Update basic configuration
-        for key in ["server_name", "server_version", "server_port"]:
+        for key in ["server_name", "server_version", "server_port", "temp_files_dir"]:
             if key in config_data:
                 setattr(config, key, config_data[key])
 
@@ -327,6 +631,13 @@ class DorisConfig:
                 if hasattr(config.performance, key):
                     setattr(config.performance, key, value)
 
+        # Update data quality configuration
+        if "data_quality" in config_data:
+            dq_config = config_data["data_quality"]
+            for key, value in dq_config.items():
+                if hasattr(config.data_quality, key):
+                    setattr(config.data_quality, key, value)
+
         # Update logging configuration
         if "logging" in config_data:
             log_config = config_data["logging"]
@@ -341,6 +652,13 @@ class DorisConfig:
                 if hasattr(config.monitoring, key):
                     setattr(config.monitoring, key, value)
 
+        # Update ADBC configuration
+        if "adbc" in config_data:
+            adbc_config = config_data["adbc"]
+            for key, value in adbc_config.items():
+                if hasattr(config.adbc, key):
+                    setattr(config.adbc, key, value)
+
         # Custom configuration
         config.custom_config = config_data.get("custom", {})
 
@@ -352,6 +670,7 @@ class DorisConfig:
             "server_name": self.server_name,
             "server_version": self.server_version,
             "server_port": self.server_port,
+            "temp_files_dir": self.temp_files_dir,
             "database": {
                 "host": self.database.host,
                 "port": self.database.port,
@@ -359,7 +678,12 @@ class DorisConfig:
                 "password": "***",  # Hide password
                 "database": self.database.database,
                 "charset": self.database.charset,
-                "min_connections": self.database.min_connections,
+                "fe_http_port": self.database.fe_http_port,
+                "be_hosts": self.database.be_hosts,
+                "be_webserver_port": self.database.be_webserver_port,
+                "fe_arrow_flight_sql_port": self.database.fe_arrow_flight_sql_port,
+                "be_arrow_flight_sql_port": self.database.be_arrow_flight_sql_port,
+                "min_connections": self.database.min_connections,  # Always 0, shown for reference
                 "max_connections": self.database.max_connections,
                 "connection_timeout": self.database.connection_timeout,
                 "health_check_interval": self.database.health_check_interval,
@@ -369,6 +693,7 @@ class DorisConfig:
                 "auth_type": self.security.auth_type,
                 "token_secret": "***",  # Hide secret key
                 "token_expiry": self.security.token_expiry,
+                "enable_security_check": self.security.enable_security_check,
                 "blocked_keywords": self.security.blocked_keywords,
                 "max_query_complexity": self.security.max_query_complexity,
                 "max_result_rows": self.security.max_result_rows,
@@ -384,6 +709,20 @@ class DorisConfig:
                 "query_timeout": self.performance.query_timeout,
                 "connection_pool_size": self.performance.connection_pool_size,
                 "idle_timeout": self.performance.idle_timeout,
+                "max_response_content_size": self.performance.max_response_content_size,
+            },
+            "data_quality": {
+                "max_columns_per_batch": self.data_quality.max_columns_per_batch,
+                "default_sample_size": self.data_quality.default_sample_size,
+                "small_table_threshold": self.data_quality.small_table_threshold,
+                "medium_table_threshold": self.data_quality.medium_table_threshold,
+                "enable_batch_analysis": self.data_quality.enable_batch_analysis,
+                "batch_timeout": self.data_quality.batch_timeout,
+                "enable_fast_mode": self.data_quality.enable_fast_mode,
+                "fast_mode_sample_size": self.data_quality.fast_mode_sample_size,
+                "enable_distribution_analysis": self.data_quality.enable_distribution_analysis,
+                "histogram_bins": self.data_quality.histogram_bins,
+                "percentile_levels": self.data_quality.percentile_levels,
             },
             "logging": {
                 "level": self.logging.level,
@@ -393,6 +732,9 @@ class DorisConfig:
                 "backup_count": self.logging.backup_count,
                 "enable_audit": self.logging.enable_audit,
                 "audit_file_path": self.logging.audit_file_path,
+                "enable_cleanup": self.logging.enable_cleanup,
+                "max_age_days": self.logging.max_age_days,
+                "cleanup_interval_hours": self.logging.cleanup_interval_hours,
             },
             "monitoring": {
                 "enable_metrics": self.monitoring.enable_metrics,
@@ -403,6 +745,13 @@ class DorisConfig:
                 "enable_alerts": self.monitoring.enable_alerts,
                 "alert_webhook_url": self.monitoring.alert_webhook_url,
             },
+            "adbc": {
+                "default_max_rows": self.adbc.default_max_rows,
+                "default_timeout": self.adbc.default_timeout,
+                "default_return_format": self.adbc.default_return_format,
+                "connection_timeout": self.adbc.connection_timeout,
+                "enabled": self.adbc.enabled,
+            },
             "custom": self.custom_config,
         }
 
@@ -435,11 +784,8 @@ class DorisConfig:
         if not self.database.user:
             errors.append("Database username cannot be empty")
 
-        if self.database.min_connections <= 0:
-            errors.append("Minimum connections must be greater than 0")
-
-        if self.database.max_connections <= self.database.min_connections:
-            errors.append("Maximum connections must be greater than minimum connections")
+        if self.database.max_connections <= 0:
+            errors.append("Maximum connections must be greater than 0")
 
         # Validate security configuration
         if self.security.auth_type not in ["token", "basic", "oauth"]:
@@ -464,6 +810,31 @@ class DorisConfig:
         if self.performance.query_timeout <= 0:
             errors.append("Query timeout must be greater than 0")
 
+        # Validate data quality configuration
+        if self.data_quality.max_columns_per_batch <= 0:
+            errors.append("Max columns per batch must be greater than 0")
+
+        if self.data_quality.default_sample_size <= 0:
+            errors.append("Default sample size must be greater than 0")
+
+        if self.data_quality.small_table_threshold <= 0:
+            errors.append("Small table threshold must be greater than 0")
+
+        if self.data_quality.medium_table_threshold <= 0:
+            errors.append("Medium table threshold must be greater than 0")
+
+        if self.data_quality.small_table_threshold >= self.data_quality.medium_table_threshold:
+            errors.append("Small table threshold must be less than medium table threshold")
+
+        if self.data_quality.batch_timeout <= 0:
+            errors.append("Batch timeout must be greater than 0")
+
+        if self.data_quality.fast_mode_sample_size <= 0:
+            errors.append("Fast mode sample size must be greater than 0")
+
+        if self.data_quality.histogram_bins <= 0:
+            errors.append("Histogram bins must be greater than 0")
+
         # Validate logging configuration
         if self.logging.level not in ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]:
             errors.append("Log level must be one of DEBUG, INFO, WARNING, ERROR, or CRITICAL")
@@ -473,6 +844,12 @@ class DorisConfig:
 
         if self.logging.backup_count < 0:
             errors.append("Log backup count cannot be negative")
+        
+        if self.logging.max_age_days <= 0:
+            errors.append("Log max age days must be greater than 0")
+        
+        if self.logging.cleanup_interval_hours <= 0:
+            errors.append("Log cleanup interval hours must be greater than 0")
 
         # Validate monitoring configuration
         if not (1 <= self.monitoring.metrics_port <= 65535):
@@ -481,6 +858,19 @@ class DorisConfig:
         if not (1 <= self.monitoring.health_check_port <= 65535):
             errors.append("Health check port must be in the range 1-65535")
 
+        # Validate ADBC configuration
+        if self.adbc.default_max_rows <= 0:
+            errors.append("ADBC default max rows must be greater than 0")
+
+        if self.adbc.default_timeout <= 0:
+            errors.append("ADBC default timeout must be greater than 0")
+
+        if self.adbc.default_return_format not in ["arrow", "pandas", "dict"]:
+            errors.append("ADBC default return format must be one of arrow, pandas, or dict")
+
+        if self.adbc.connection_timeout <= 0:
+            errors.append("ADBC connection timeout must be greater than 0")
+
         return errors
 
     def get_connection_string(self) -> str:
@@ -492,7 +882,7 @@ class DorisConfig:
         return {
             "server": f"{self.server_name} v{self.server_version}",
             "database": f"{self.database.host}:{self.database.port}/{self.database.database}",
-            "connection_pool": f"{self.database.min_connections}-{self.database.max_connections}",
+            "connection_pool": f"0-{self.database.max_connections} (min fixed at 0 for stability)",
             "security": {
                 "auth_type": self.security.auth_type,
                 "masking_enabled": self.security.enable_masking,
@@ -518,56 +908,50 @@ class ConfigManager:
         self.logger = logging.getLogger(__name__)
 
     def setup_logging(self):
-        """Setup logging configuration"""
-        # Configure root logger
-        root_logger = logging.getLogger()
-        root_logger.setLevel(getattr(logging, self.config.logging.level.upper()))
-
-        # Clear existing handlers
-        for handler in root_logger.handlers[:]:
-            root_logger.removeHandler(handler)
-
-        # Create formatter
-        formatter = logging.Formatter(self.config.logging.format)
-
-        # Console handler
-        console_handler = logging.StreamHandler()
-        console_handler.setFormatter(formatter)
-        root_logger.addHandler(console_handler)
-
-        # File handler (if configured)
+        """Setup logging configuration using enhanced logger"""
+        from .logger import setup_logging, get_logger
+        import sys
+        
+        # Determine log directory
+        log_dir = "logs"
         if self.config.logging.file_path:
-            try:
-                from logging.handlers import RotatingFileHandler
-
-                file_handler = RotatingFileHandler(
-                    self.config.logging.file_path,
-                    maxBytes=self.config.logging.max_file_size,
-                    backupCount=self.config.logging.backup_count,
-                    encoding="utf-8",
-                )
-                file_handler.setFormatter(formatter)
-                root_logger.addHandler(file_handler)
-            except Exception as e:
-                self.logger.warning(f"Failed to setup file logging: {e}")
-
-        # Audit log handler (if configured)
-        if self.config.logging.enable_audit and self.config.logging.audit_file_path:
-            try:
-                from logging.handlers import RotatingFileHandler
-
-                audit_logger = logging.getLogger("audit")
-                audit_handler = RotatingFileHandler(
-                    self.config.logging.audit_file_path,
-                    maxBytes=self.config.logging.max_file_size,
-                    backupCount=self.config.logging.backup_count,
-                    encoding="utf-8",
-                )
-                audit_handler.setFormatter(formatter)
-                audit_logger.addHandler(audit_handler)
-                audit_logger.setLevel(logging.INFO)
-            except Exception as e:
-                self.logger.warning(f"Failed to setup audit logging: {e}")
+            # Extract directory from file path if provided
+            from pathlib import Path
+            log_dir = str(Path(self.config.logging.file_path).parent)
+        
+        # Detect if we're in stdio mode by checking if this is likely MCP stdio communication
+        # In stdio mode, we shouldn't output to console as it interferes with JSON protocol
+        is_stdio_mode = (
+            self.config.transport == "stdio" or 
+            "--transport" in sys.argv and "stdio" in sys.argv or
+            not sys.stdout.isatty()  # Not a terminal (likely piped/redirected)
+        )
+        
+        # Setup enhanced logging with cleanup functionality
+        setup_logging(
+            level=self.config.logging.level,
+            log_dir=log_dir,
+            enable_console=not is_stdio_mode,  # Disable console logging in stdio mode
+            enable_file=True,
+            enable_audit=self.config.logging.enable_audit,
+            audit_file=self.config.logging.audit_file_path,
+            max_file_size=self.config.logging.max_file_size,
+            backup_count=self.config.logging.backup_count,
+            enable_cleanup=self.config.logging.enable_cleanup,
+            max_age_days=self.config.logging.max_age_days,
+            cleanup_interval_hours=self.config.logging.cleanup_interval_hours
+        )
+        
+        # Update logger to use new system
+        self.logger = get_logger(__name__)
+        
+        self.logger.info("Enhanced logging system with cleanup initialized successfully")
+        self.logger.info(f"Log directory: {log_dir}")
+        self.logger.info(f"Log level: {self.config.logging.level}")
+        self.logger.info(f"Audit logging: {'Enabled' if self.config.logging.enable_audit else 'Disabled'}")
+        self.logger.info(f"Log cleanup: {'Enabled' if self.config.logging.enable_cleanup else 'Disabled'}")
+        if self.config.logging.enable_cleanup:
+            self.logger.info(f"Cleanup config: Max age {self.config.logging.max_age_days} days, interval {self.config.logging.cleanup_interval_hours}h")
 
     def validate_config(self) -> bool:
         """Validate configuration"""

doris_mcp_server/utils/data_exploration_tools.py

@@ -0,0 +1,771 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Data Exploration Tools Module
+Provides table data distribution analysis and exploration capabilities
+"""
+
+import time
+import math
+from datetime import datetime
+from typing import Any, Dict, List, Optional, Union
+
+from .db import DorisConnectionManager
+from .logger import get_logger
+from .sql_security_utils import (
+    SQLSecurityError,
+    validate_identifier,
+    quote_identifier,
+    build_table_reference,
+    get_auth_context
+)
+
+logger = get_logger(__name__)
+
+
+class DataExplorationTools:
+    """Data exploration tools for table distribution analysis"""
+    
+    def __init__(self, connection_manager: DorisConnectionManager):
+        self.connection_manager = connection_manager
+        logger.info("DataExplorationTools initialized")
+    
+
+    
+    # ==================== Private Helper Methods ====================
+    
+    def _build_full_table_name(self, table_name: str, catalog_name: Optional[str], db_name: Optional[str]) -> str:
+        """Build full table name with catalog and database using three-part naming convention"""
+        # SECURITY FIX: Use build_table_reference for safe identifier handling
+        effective_catalog = catalog_name if catalog_name else "internal"
+        
+        if db_name:
+            return build_table_reference(table_name, db_name, effective_catalog)
+        else:
+            return build_table_reference(table_name, catalog_name=effective_catalog)
+    
+    async def _get_table_basic_info(self, connection, table_name: str) -> Optional[Dict]:
+        """Get basic table information including row count"""
+        try:
+            # SECURITY FIX: Get auth_context for security validation
+            # table_name should already be validated by _build_full_table_name
+            auth_context = get_auth_context()
+            
+            count_sql = f"SELECT COUNT(*) as row_count FROM {table_name}"
+            result = await connection.execute(count_sql, auth_context=auth_context)
+            
+            if result.data:
+                return {"row_count": result.data[0]["row_count"]}
+            return None
+        except SQLSecurityError as e:
+            logger.warning(f"Security validation failed for table {table_name}: {str(e)}")
+            return {"row_count": 0}
+        except Exception as e:
+            logger.warning(f"Failed to get basic info for table {table_name}: {str(e)}")
+            return {"row_count": 0}
+    
+    async def _get_table_columns_info(self, connection, table_name: str, catalog_name: Optional[str], db_name: Optional[str]) -> List[Dict]:
+        """Get detailed column information"""
+        try:
+            # SECURITY FIX: Validate identifiers and use parameterized query
+            auth_context = get_auth_context()
+            
+            try:
+                validate_identifier(table_name, "table name")
+                if db_name:
+                    validate_identifier(db_name, "database name")
+            except SQLSecurityError as e:
+                logger.warning(f"Invalid identifier rejected: {e}")
+                return []
+            
+            # Build parameterized query
+            params = [table_name]
+            where_conditions = ["table_name = %s"]
+            
+            if db_name:
+                where_conditions.append("table_schema = %s")
+                params.append(db_name)
+            else:
+                where_conditions.append("table_schema = DATABASE()")
+            
+            columns_sql = f"""
+            SELECT 
+                column_name,
+                data_type,
+                is_nullable,
+                column_comment,
+                ordinal_position
+            FROM information_schema.columns 
+            WHERE {' AND '.join(where_conditions)}
+            ORDER BY ordinal_position
+            """
+            
+            result = await connection.execute(columns_sql, params=tuple(params), auth_context=auth_context)
+            return result.data if result.data else []
+            
+        except SQLSecurityError as e:
+            logger.warning(f"Security validation failed: {str(e)}")
+            return []
+        except Exception as e:
+            logger.warning(f"Failed to get columns info for table {table_name}: {str(e)}")
+            return []
+    
+    async def _determine_sampling_strategy(self, connection, table_name: str, total_rows: int, sample_size: int) -> Dict[str, Any]:
+        """Determine optimal sampling strategy based on table size"""
+        if total_rows <= sample_size:
+            # Use all data if table is small enough
+            return {
+                "total_rows": total_rows,
+                "sample_size": total_rows,
+                "sampling_method": "full_scan",
+                "sampling_ratio": 1.0,
+                "use_sampling": False,
+                "sample_table_expression": table_name
+            }
+        else:
+            # Use random sampling for large tables
+            sampling_ratio = sample_size / total_rows
+            return {
+                "total_rows": total_rows,
+                "sample_size": sample_size,
+                "sampling_method": "random_sample",
+                "sampling_ratio": round(sampling_ratio, 4),
+                "use_sampling": True,
+                "sample_table_expression": f"(SELECT * FROM {table_name} ORDER BY RAND() LIMIT {sample_size}) as sample_table"
+            }
+    
+    def _select_analysis_columns(self, columns_info: List[Dict], include_all: bool) -> List[Dict]:
+        """Select columns for analysis based on strategy"""
+        if include_all:
+            return columns_info
+        
+        # If not analyzing all columns, prioritize key columns
+        priority_keywords = ['id', 'key', 'code', 'status', 'type', 'amount', 'count', 'date', 'time']
+        
+        priority_columns = []
+        other_columns = []
+        
+        for col in columns_info:
+            col_name_lower = col["column_name"].lower()
+            if any(keyword in col_name_lower for keyword in priority_keywords):
+                priority_columns.append(col)
+            else:
+                other_columns.append(col)
+        
+        # Return priority columns plus first 10 other columns
+        return priority_columns + other_columns[:10]
+    
+    def _is_numeric_type(self, data_type: str) -> bool:
+        """Check if column type is numeric"""
+        numeric_types = [
+            'tinyint', 'smallint', 'int', 'bigint', 'largeint',
+            'float', 'double', 'decimal', 'numeric'
+        ]
+        return any(num_type in data_type.lower() for num_type in numeric_types)
+    
+    def _is_categorical_type(self, data_type: str) -> bool:
+        """Check if column type is categorical"""
+        categorical_types = ['varchar', 'char', 'string', 'text', 'enum']
+        return any(cat_type in data_type.lower() for cat_type in categorical_types)
+    
+    def _is_temporal_type(self, data_type: str) -> bool:
+        """Check if column type is temporal"""
+        temporal_types = ['date', 'datetime', 'timestamp', 'time']
+        return any(temp_type in data_type.lower() for temp_type in temporal_types)
+    
+    async def _analyze_numeric_distributions(self, connection, table_name: str, numeric_columns: List[Dict], sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze distribution patterns for numeric columns"""
+        numeric_analysis = {}
+        
+        for column in numeric_columns:
+            col_name = column["column_name"]
+            try:
+                # Basic statistics
+                table_expr = sampling_info.get("sample_table_expression", table_name)
+                stats_sql = f"""
+                SELECT 
+                    COUNT({col_name}) as count,
+                    MIN({col_name}) as min_value,
+                    MAX({col_name}) as max_value,
+                    AVG({col_name}) as mean_value,
+                    STDDEV({col_name}) as std_dev
+                FROM {table_expr}
+                WHERE {col_name} IS NOT NULL
+                """
+                
+                auth_context = get_auth_context()
+                stats_result = await connection.execute(stats_sql, auth_context=auth_context)
+                
+                if stats_result.data and stats_result.data[0]["count"] > 0:
+                    stats = stats_result.data[0]
+                    
+                    # Percentiles calculation
+                    percentiles = await self._calculate_percentiles(connection, table_name, col_name, sampling_info)
+                    
+                    # Outlier detection
+                    outliers = await self._detect_numeric_outliers(connection, table_name, col_name, percentiles, sampling_info)
+                    
+                    # Distribution shape analysis
+                    distribution_shape = await self._analyze_distribution_shape(
+                        connection, table_name, col_name, stats, percentiles, sampling_info
+                    )
+                    
+                    numeric_analysis[col_name] = {
+                        "data_type": column["data_type"],
+                        "statistics": {
+                            "count": stats["count"],
+                            "mean": round(float(stats["mean_value"]), 4) if stats["mean_value"] else None,
+                            "std": round(float(stats["std_dev"]), 4) if stats["std_dev"] else None,
+                            "min": float(stats["min_value"]) if stats["min_value"] else None,
+                            "max": float(stats["max_value"]) if stats["max_value"] else None,
+                            **percentiles
+                        },
+                        "distribution_shape": distribution_shape,
+                        "outliers": outliers
+                    }
+                    
+            except Exception as e:
+                logger.warning(f"Failed to analyze numeric column {col_name}: {str(e)}")
+                numeric_analysis[col_name] = {"error": str(e)}
+        
+        return numeric_analysis
+    
+    async def _calculate_percentiles(self, connection, table_name: str, col_name: str, sampling_info: Dict) -> Dict[str, float]:
+        """Calculate percentiles for numeric column"""
+        try:
+            table_expr = sampling_info.get("sample_table_expression", table_name)
+            percentile_sql = f"""
+            SELECT 
+                PERCENTILE({col_name}, 0.25) as p25,
+                PERCENTILE({col_name}, 0.50) as p50,
+                PERCENTILE({col_name}, 0.75) as p75,
+                PERCENTILE({col_name}, 0.90) as p90,
+                PERCENTILE({col_name}, 0.95) as p95,
+                PERCENTILE({col_name}, 0.99) as p99
+            FROM {table_expr}
+            WHERE {col_name} IS NOT NULL
+            """
+            
+            auth_context = get_auth_context()
+            result = await connection.execute(percentile_sql, auth_context=auth_context)
+            
+            if result.data:
+                data = result.data[0]
+                return {
+                    "25%": round(float(data["p25"]), 4) if data["p25"] else None,
+                    "50%": round(float(data["p50"]), 4) if data["p50"] else None,
+                    "75%": round(float(data["p75"]), 4) if data["p75"] else None,
+                    "90%": round(float(data["p90"]), 4) if data["p90"] else None,
+                    "95%": round(float(data["p95"]), 4) if data["p95"] else None,
+                    "99%": round(float(data["p99"]), 4) if data["p99"] else None
+                }
+        except Exception as e:
+            logger.warning(f"Failed to calculate percentiles for {col_name}: {str(e)}")
+        
+        return {}
+    
+    async def _detect_numeric_outliers(self, connection, table_name: str, col_name: str, percentiles: Dict, sampling_info: Dict) -> Dict[str, Any]:
+        """Detect outliers using IQR method"""
+        try:
+            if "25%" not in percentiles or "75%" not in percentiles:
+                return {"outlier_count": 0, "outlier_rate": 0.0}
+            
+            q1 = percentiles["25%"]
+            q3 = percentiles["75%"]
+            iqr = q3 - q1
+            
+            lower_bound = q1 - 1.5 * iqr
+            upper_bound = q3 + 1.5 * iqr
+            
+            table_expr = sampling_info.get("sample_table_expression", table_name)
+            outlier_sql = f"""
+            SELECT 
+                COUNT(*) as total_count,
+                SUM(CASE WHEN {col_name} < {lower_bound} OR {col_name} > {upper_bound} THEN 1 ELSE 0 END) as outlier_count
+            FROM {table_expr}
+            WHERE {col_name} IS NOT NULL
+            """
+            
+            auth_context = get_auth_context()
+            result = await connection.execute(outlier_sql, auth_context=auth_context)
+            
+            if result.data:
+                data = result.data[0]
+                total_count = data["total_count"]
+                outlier_count = data["outlier_count"]
+                outlier_rate = outlier_count / total_count if total_count > 0 else 0
+                
+                return {
+                    "outlier_count": outlier_count,
+                    "outlier_rate": round(outlier_rate, 4),
+                    "outlier_threshold_lower": round(lower_bound, 4),
+                    "outlier_threshold_upper": round(upper_bound, 4),
+                    "iqr": round(iqr, 4)
+                }
+                
+        except Exception as e:
+            logger.warning(f"Failed to detect outliers for {col_name}: {str(e)}")
+        
+        return {"outlier_count": 0, "outlier_rate": 0.0}
+    
+    async def _analyze_distribution_shape(self, connection, table_name: str, col_name: str, stats: Dict, percentiles: Dict, sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze the shape of data distribution"""
+        try:
+            mean = stats.get("mean_value", 0)
+            median = percentiles.get("50%", 0)
+            
+            if mean is None or median is None:
+                return {"distribution_type": "unknown"}
+            
+            # Calculate skewness indicator
+            if abs(mean - median) < 0.01:
+                skew_indicator = "symmetric"
+            elif mean > median:
+                skew_indicator = "right_skewed"
+            else:
+                skew_indicator = "left_skewed"
+            
+            # Estimate kurtosis based on percentile spread
+            if "25%" in percentiles and "75%" in percentiles:
+                iqr = percentiles["75%"] - percentiles["25%"]
+                range_90 = percentiles.get("90%", percentiles["75%"]) - percentiles.get("10%", percentiles["25%"])
+                
+                if iqr > 0:
+                    kurtosis_indicator = "normal" if 2.5 <= range_90/iqr <= 3.5 else ("heavy_tailed" if range_90/iqr > 3.5 else "light_tailed")
+                else:
+                    kurtosis_indicator = "unknown"
+            else:
+                kurtosis_indicator = "unknown"
+            
+            return {
+                "skewness_indicator": skew_indicator,
+                "kurtosis_indicator": kurtosis_indicator,
+                "distribution_type": self._classify_distribution_type(skew_indicator, kurtosis_indicator),
+                "mean_median_ratio": round(mean / median, 4) if median != 0 else None
+            }
+            
+        except Exception as e:
+            logger.warning(f"Failed to analyze distribution shape for {col_name}: {str(e)}")
+            return {"distribution_type": "unknown"}
+    
+    def _classify_distribution_type(self, skew: str, kurtosis: str) -> str:
+        """Classify distribution type based on skewness and kurtosis"""
+        if skew == "symmetric" and kurtosis == "normal":
+            return "approximately_normal"
+        elif skew == "right_skewed":
+            return "right_skewed"
+        elif skew == "left_skewed":
+            return "left_skewed"
+        elif kurtosis == "heavy_tailed":
+            return "heavy_tailed"
+        else:
+            return "non_normal"
+    
+    async def _analyze_categorical_distributions(self, connection, table_name: str, categorical_columns: List[Dict], sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze distribution patterns for categorical columns"""
+        categorical_analysis = {}
+        
+        for column in categorical_columns:
+            col_name = column["column_name"]
+            try:
+                # Basic cardinality and distribution
+                cardinality_sql = f"""
+                SELECT 
+                    COUNT(DISTINCT {col_name}) as cardinality,
+                    COUNT({col_name}) as non_null_count
+                FROM {table_name}
+                WHERE {col_name} IS NOT NULL
+                {sampling_info.get('sample_query_suffix', '')}
+                """
+                
+                auth_context = get_auth_context()
+                cardinality_result = await connection.execute(cardinality_sql, auth_context=auth_context)
+                
+                if cardinality_result.data:
+                    cardinality_data = cardinality_result.data[0]
+                    cardinality = cardinality_data["cardinality"]
+                    non_null_count = cardinality_data["non_null_count"]
+                    
+                    # Value distribution (top values)
+                    value_distribution = await self._get_categorical_value_distribution(
+                        connection, table_name, col_name, sampling_info, non_null_count
+                    )
+                    
+                    # Calculate entropy and concentration
+                    entropy = self._calculate_entropy(value_distribution)
+                    concentration_ratio = value_distribution[0]["percentage"] if value_distribution else 0
+                    
+                    categorical_analysis[col_name] = {
+                        "data_type": column["data_type"],
+                        "cardinality": cardinality,
+                        "non_null_count": non_null_count,
+                        "value_distribution": value_distribution,
+                        "entropy": round(entropy, 3),
+                        "concentration_ratio": round(concentration_ratio, 4),
+                        "diversity_score": round(cardinality / non_null_count, 4) if non_null_count > 0 else 0
+                    }
+                    
+            except Exception as e:
+                logger.warning(f"Failed to analyze categorical column {col_name}: {str(e)}")
+                categorical_analysis[col_name] = {"error": str(e)}
+        
+        return categorical_analysis
+    
+    async def _get_categorical_value_distribution(self, connection, table_name: str, col_name: str, sampling_info: Dict, total_count: int) -> List[Dict]:
+        """Get value distribution for categorical column"""
+        try:
+            # Use sample table expression if sampling is enabled
+            table_expr = sampling_info.get("sample_table_expression", table_name)
+            
+            distribution_sql = f"""
+            SELECT 
+                {col_name} as value,
+                COUNT(*) as count
+            FROM {table_expr}
+            WHERE {col_name} IS NOT NULL
+            GROUP BY {col_name}
+            ORDER BY COUNT(*) DESC
+            LIMIT 20
+            """
+            
+            auth_context = get_auth_context()
+            result = await connection.execute(distribution_sql, auth_context=auth_context)
+            
+            if result.data:
+                distribution = []
+                for row in result.data:
+                    count = row["count"]
+                    percentage = count / total_count if total_count > 0 else 0
+                    distribution.append({
+                        "value": str(row["value"]),
+                        "count": count,
+                        "percentage": round(percentage, 4)
+                    })
+                return distribution
+            
+        except Exception as e:
+            logger.warning(f"Failed to get value distribution for {col_name}: {str(e)}")
+        
+        return []
+    
+    def _calculate_entropy(self, value_distribution: List[Dict]) -> float:
+        """Calculate Shannon entropy for categorical distribution"""
+        if not value_distribution:
+            return 0.0
+        
+        entropy = 0.0
+        for item in value_distribution:
+            p = item["percentage"]
+            if p > 0:
+                entropy -= p * math.log2(p)
+        
+        return entropy
+    
+    async def _analyze_temporal_distributions(self, connection, table_name: str, temporal_columns: List[Dict], sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze distribution patterns for temporal columns"""
+        temporal_analysis = {}
+        
+        for column in temporal_columns:
+            col_name = column["column_name"]
+            try:
+                # Date range analysis
+                table_expr = sampling_info.get("sample_table_expression", table_name)
+                range_sql = f"""
+                SELECT 
+                    MIN({col_name}) as earliest,
+                    MAX({col_name}) as latest,
+                    COUNT({col_name}) as non_null_count
+                FROM {table_expr}
+                WHERE {col_name} IS NOT NULL
+                """
+                
+                auth_context = get_auth_context()
+                range_result = await connection.execute(range_sql, auth_context=auth_context)
+                
+                if range_result.data and range_result.data[0]["non_null_count"] > 0:
+                    range_data = range_result.data[0]
+                    earliest = range_data["earliest"]
+                    latest = range_data["latest"]
+                    
+                    # Calculate span
+                    date_span_info = self._calculate_date_span(earliest, latest)
+                    
+                    # Temporal patterns analysis
+                    temporal_patterns = await self._analyze_temporal_patterns(
+                        connection, table_name, col_name, sampling_info
+                    )
+                    
+                    temporal_analysis[col_name] = {
+                        "data_type": column["data_type"],
+                        "non_null_count": range_data["non_null_count"],
+                        "date_range": {
+                            "earliest": str(earliest),
+                            "latest": str(latest),
+                            **date_span_info
+                        },
+                        "temporal_patterns": temporal_patterns
+                    }
+                    
+            except Exception as e:
+                logger.warning(f"Failed to analyze temporal column {col_name}: {str(e)}")
+                temporal_analysis[col_name] = {"error": str(e)}
+        
+        return temporal_analysis
+    
+    def _calculate_date_span(self, earliest, latest) -> Dict[str, Any]:
+        """Calculate date span information"""
+        try:
+            if isinstance(earliest, str):
+                earliest = datetime.fromisoformat(earliest.replace('Z', '+00:00'))
+            if isinstance(latest, str):
+                latest = datetime.fromisoformat(latest.replace('Z', '+00:00'))
+            
+            span = latest - earliest
+            span_days = span.days
+            
+            return {
+                "span_days": span_days,
+                "span_years": round(span_days / 365.25, 2),
+                "span_description": self._describe_time_span(span_days)
+            }
+            
+        except Exception as e:
+            logger.warning(f"Failed to calculate date span: {str(e)}")
+            return {"span_days": 0}
+    
+    def _describe_time_span(self, days: int) -> str:
+        """Describe time span in human readable format"""
+        if days < 1:
+            return "less_than_day"
+        elif days < 7:
+            return "days"
+        elif days < 30:
+            return "weeks"
+        elif days < 365:
+            return "months"
+        else:
+            return "years"
+    
+    async def _analyze_temporal_patterns(self, connection, table_name: str, col_name: str, sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze temporal patterns like seasonality and trends"""
+        try:
+            table_expr = sampling_info.get("sample_table_expression", table_name)
+            # Weekly pattern analysis
+            weekly_pattern_sql = f"""
+            SELECT 
+                DAYOFWEEK({col_name}) as day_of_week,
+                COUNT(*) as count
+            FROM {table_expr}
+            WHERE {col_name} IS NOT NULL
+            GROUP BY DAYOFWEEK({col_name})
+            ORDER BY day_of_week
+            """
+            
+            auth_context = get_auth_context()
+            weekly_result = await connection.execute(weekly_pattern_sql, auth_context=auth_context)
+            
+            weekly_pattern = []
+            if weekly_result.data:
+                total_records = sum(row["count"] for row in weekly_result.data)
+                for row in weekly_result.data:
+                    percentage = row["count"] / total_records if total_records > 0 else 0
+                    weekly_pattern.append(round(percentage, 3))
+            
+            # Monthly trend analysis (simplified)
+            monthly_trend_sql = f"""
+            SELECT 
+                YEAR({col_name}) as year,
+                MONTH({col_name}) as month,
+                COUNT(*) as count
+            FROM {table_expr}
+            WHERE {col_name} IS NOT NULL
+            GROUP BY YEAR({col_name}), MONTH({col_name})
+            ORDER BY year, month
+            LIMIT 12
+            """
+            
+            monthly_result = await connection.execute(monthly_trend_sql, auth_context=auth_context)
+            monthly_trend = "stable"  # Simplified trend analysis
+            
+            if monthly_result.data and len(monthly_result.data) > 3:
+                counts = [row["count"] for row in monthly_result.data]
+                if len(counts) > 1:
+                    trend_direction = "increasing" if counts[-1] > counts[0] else "decreasing"
+                    monthly_trend = trend_direction
+            
+            return {
+                "weekly_pattern": weekly_pattern,
+                "monthly_trend": monthly_trend,
+                "seasonal_component": self._estimate_seasonality(weekly_pattern)
+            }
+            
+        except Exception as e:
+            logger.warning(f"Failed to analyze temporal patterns for {col_name}: {str(e)}")
+            return {"weekly_pattern": [], "monthly_trend": "unknown"}
+    
+    def _estimate_seasonality(self, weekly_pattern: List[float]) -> float:
+        """Estimate seasonality strength based on weekly pattern variance"""
+        if len(weekly_pattern) < 7:
+            return 0.0
+        
+        mean_percentage = sum(weekly_pattern) / len(weekly_pattern)
+        variance = sum((x - mean_percentage) ** 2 for x in weekly_pattern) / len(weekly_pattern)
+        
+        # Normalize variance to 0-1 scale as seasonality indicator
+        seasonality = min(variance * 10, 1.0)  # Scaling factor
+        return round(seasonality, 3)
+    
+    async def _generate_data_quality_insights(self, connection, table_name: str, columns: List[Dict], sampling_info: Dict) -> Dict[str, Any]:
+        """Generate overall data quality insights"""
+        try:
+            total_columns = len(columns)
+            
+            # Calculate null rates across all columns
+            null_analysis = await self._analyze_overall_null_rates(connection, table_name, columns, sampling_info)
+            
+            # Identify potential data quality issues
+            quality_issues = []
+            
+            # High null rate columns
+            high_null_columns = [col for col, rate in null_analysis["column_null_rates"].items() if rate > 0.2]
+            if high_null_columns:
+                quality_issues.append({
+                    "issue_type": "high_null_rates",
+                    "severity": "medium",
+                    "affected_columns": high_null_columns,
+                    "description": f"{len(high_null_columns)} columns have null rates > 20%"
+                })
+            
+            # Calculate overall data quality score
+            avg_null_rate = sum(null_analysis["column_null_rates"].values()) / len(null_analysis["column_null_rates"]) if null_analysis["column_null_rates"] else 0
+            data_quality_score = max(0, 1 - avg_null_rate)
+            
+            return {
+                "total_columns_analyzed": total_columns,
+                "null_analysis": null_analysis,
+                "data_quality_score": round(data_quality_score, 3),
+                "quality_issues": quality_issues,
+                "recommendations": self._generate_quality_recommendations(quality_issues, null_analysis)
+            }
+            
+        except Exception as e:
+            logger.warning(f"Failed to generate data quality insights: {str(e)}")
+            return {"data_quality_score": 0.0, "error": str(e)}
+    
+    async def _analyze_overall_null_rates(self, connection, table_name: str, columns: List[Dict], sampling_info: Dict) -> Dict[str, Any]:
+        """Analyze null rates across all columns"""
+        column_null_rates = {}
+        total_null_count = 0
+        total_cell_count = 0
+        
+        for column in columns:
+            col_name = column["column_name"]
+            try:
+                table_expr = sampling_info.get("sample_table_expression", table_name)
+                null_sql = f"""
+                SELECT 
+                    COUNT(*) as total_count,
+                    COUNT({col_name}) as non_null_count
+                FROM {table_expr}
+                """
+                
+                auth_context = get_auth_context()
+                result = await connection.execute(null_sql, auth_context=auth_context)
+                if result.data:
+                    data = result.data[0]
+                    total_count = data["total_count"]
+                    non_null_count = data["non_null_count"]
+                    null_count = total_count - non_null_count
+                    null_rate = null_count / total_count if total_count > 0 else 0
+                    
+                    column_null_rates[col_name] = round(null_rate, 4)
+                    total_null_count += null_count
+                    total_cell_count += total_count
+                    
+            except Exception as e:
+                logger.warning(f"Failed to analyze null rate for column {col_name}: {str(e)}")
+                column_null_rates[col_name] = 0.0
+        
+        overall_null_rate = total_null_count / total_cell_count if total_cell_count > 0 else 0
+        
+        return {
+            "column_null_rates": column_null_rates,
+            "overall_null_rate": round(overall_null_rate, 4),
+            "columns_with_nulls": len([rate for rate in column_null_rates.values() if rate > 0])
+        }
+    
+    def _generate_quality_recommendations(self, quality_issues: List[Dict], null_analysis: Dict) -> List[Dict]:
+        """Generate data quality improvement recommendations"""
+        recommendations = []
+        
+        # Recommendations based on null analysis
+        overall_null_rate = null_analysis.get("overall_null_rate", 0)
+        if overall_null_rate > 0.1:
+            recommendations.append({
+                "type": "data_completeness",
+                "priority": "high" if overall_null_rate > 0.3 else "medium",
+                "description": f"Overall null rate is {overall_null_rate:.1%}",
+                "action": "Review data collection and validation processes"
+            })
+        
+        # Recommendations based on quality issues
+        for issue in quality_issues:
+            if issue["issue_type"] == "high_null_rates":
+                recommendations.append({
+                    "type": "column_completeness",
+                    "priority": issue["severity"],
+                    "description": issue["description"],
+                    "action": f"Focus on improving data completeness for: {', '.join(issue['affected_columns'][:3])}"
+                })
+        
+        return recommendations
+    
+    def _generate_analysis_summary(self, distribution_analysis: Dict[str, Any]) -> Dict[str, Any]:
+        """Generate high-level summary of distribution analysis"""
+        summary = {
+            "numeric_columns_count": len(distribution_analysis.get("numeric_columns", {})),
+            "categorical_columns_count": len(distribution_analysis.get("categorical_columns", {})),
+            "temporal_columns_count": len(distribution_analysis.get("temporal_columns", {}))
+        }
+        
+        # Identify interesting patterns
+        patterns = []
+        
+        # Check for highly skewed numeric columns
+        numeric_cols = distribution_analysis.get("numeric_columns", {})
+        skewed_cols = [
+            col for col, info in numeric_cols.items() 
+            if isinstance(info, dict) and 
+            info.get("distribution_shape", {}).get("skewness_indicator") in ["right_skewed", "left_skewed"]
+        ]
+        
+        if skewed_cols:
+            patterns.append(f"Found {len(skewed_cols)} skewed numeric columns")
+        
+        # Check for high cardinality categorical columns
+        categorical_cols = distribution_analysis.get("categorical_columns", {})
+        high_cardinality_cols = [
+            col for col, info in categorical_cols.items()
+            if isinstance(info, dict) and info.get("cardinality", 0) > 1000
+        ]
+        
+        if high_cardinality_cols:
+            patterns.append(f"Found {len(high_cardinality_cols)} high cardinality categorical columns")
+        
+        summary["notable_patterns"] = patterns
+        
+        return summary 

doris_mcp_server/utils/logger.py

@@ -15,77 +15,573 @@
 # specific language governing permissions and limitations
 # under the License.
 """
-Logging configuration for Doris MCP Server.
+Enhanced Logging configuration for Doris MCP Server.
+Features:
+- Log level-based file separation
+- Timestamped log entries
+- Automatic log rotation
+- Comprehensive logging coverage
 """
 
 import logging
 import logging.config
+import logging.handlers
 import sys
+import os
+import asyncio
+import time
 from pathlib import Path
-from typing import Any
+from typing import Any, Optional
+from datetime import datetime, timedelta
+import threading
 
 
-def setup_logging(
-    level: str = "INFO",
-    log_file: str | None = None,
-    log_format: str | None = None,
-) -> None:
-    """
-    Setup logging configuration.
+class TimestampedFormatter(logging.Formatter):
+    """Custom formatter with enhanced timestamp and structured format"""
+    
+    def __init__(self, fmt=None, datefmt=None, style='%'):
+        if fmt is None:
+            fmt = "%(asctime)s.%(msecs)03d %(level_aligned)s %(name)s:%(lineno)d - %(message)s"
+        if datefmt is None:
+            datefmt = "%Y-%m-%d %H:%M:%S"
+        super().__init__(fmt, datefmt, style)
+    
+    def format(self, record):
+        """Format log record with enhanced information and proper alignment"""
+        # Add process info if available
+        if hasattr(record, 'process') and record.process:
+            record.process_info = f"[PID:{record.process}]"
+        else:
+            record.process_info = ""
+        
+        # Add thread info if available
+        if hasattr(record, 'thread') and record.thread:
+            record.thread_info = f"[TID:{record.thread}]"
+        else:
+            record.thread_info = ""
+        
+        # Format with proper alignment after the level name
+        # Calculate padding needed for alignment
+        level_name = record.levelname
+        max_level_length = 8  # Length of "CRITICAL"
+        padding = max_level_length - len(level_name)
+        record.level_aligned = f"[{level_name}]{' ' * padding}"
+        
+        return super().format(record)
 
-    Args:
-        level: Logging level (DEBUG, INFO, WARNING, ERROR)
-        log_file: Optional log file path
-        log_format: Optional custom log format
-    """
-    if log_format is None:
-        log_format = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
 
-    # Base configuration
-    config: dict[str, Any] = {
-        "version": 1,
-        "disable_existing_loggers": False,
-        "formatters": {
-            "default": {"format": log_format, "datefmt": "%Y-%m-%d %H:%M:%S"}
-        },
-        "handlers": {
-            "console": {
-                "class": "logging.StreamHandler",
-                "level": level,
-                "formatter": "default",
-                "stream": sys.stdout,
-            }
-        },
-        "root": {"level": level, "handlers": ["console"]},
-        "loggers": {
-            "doris_mcp_server": {
-                "level": level,
-                "handlers": ["console"],
-                "propagate": False,
-            }
-        },
-    }
-
-    # Add file handler if log_file is specified
-    if log_file:
+class LevelBasedFileHandler(logging.Handler):
+    """Custom handler that writes different log levels to different files"""
+    
+    def __init__(self, log_dir: str, base_name: str = "doris_mcp_server", 
+                 max_bytes: int = 10*1024*1024, backup_count: int = 5):
+        super().__init__()
+        self.log_dir = Path(log_dir)
+        self.base_name = base_name
+        self.max_bytes = max_bytes
+        self.backup_count = backup_count
+        
         # Ensure log directory exists
-        log_path = Path(log_file)
-        log_path.parent.mkdir(parents=True, exist_ok=True)
-
-        config["handlers"]["file"] = {
-            "class": "logging.handlers.RotatingFileHandler",
-            "level": level,
-            "formatter": "default",
-            "filename": log_file,
-            "maxBytes": 10485760,  # 10MB
-            "backupCount": 5,
+        self.log_dir.mkdir(parents=True, exist_ok=True)
+        
+        # Create handlers for different log levels
+        self.handlers = {}
+        self._setup_level_handlers()
+    
+    def _setup_level_handlers(self):
+        """Setup rotating file handlers for different log levels"""
+        level_files = {
+            'DEBUG': 'debug.log',
+            'INFO': 'info.log', 
+            'WARNING': 'warning.log',
+            'ERROR': 'error.log',
+            'CRITICAL': 'critical.log'
         }
+        
+        formatter = TimestampedFormatter()
+        
+        for level, filename in level_files.items():
+            file_path = self.log_dir / f"{self.base_name}_{filename}"
+            handler = logging.handlers.RotatingFileHandler(
+                file_path, 
+                maxBytes=self.max_bytes,
+                backupCount=self.backup_count,
+                encoding='utf-8'
+            )
+            handler.setFormatter(formatter)
+            handler.setLevel(getattr(logging, level))
+            self.handlers[level] = handler
+    
+    def emit(self, record):
+        """Emit log record to appropriate level-based file"""
+        level_name = record.levelname
+        if level_name in self.handlers:
+            try:
+                self.handlers[level_name].emit(record)
+            except Exception:
+                self.handleError(record)
+    
+    def close(self):
+        """Close all handlers"""
+        for handler in self.handlers.values():
+            handler.close()
+        super().close()
 
-        # Add file handler to root and package loggers
-        config["root"]["handlers"].append("file")
-        config["loggers"]["doris_mcp_server"]["handlers"].append("file")
 
-    logging.config.dictConfig(config)
+class LogCleanupManager:
+    """Log file cleanup manager for automatic maintenance"""
+    
+    def __init__(self, log_dir: str, max_age_days: int = 30, cleanup_interval_hours: int = 24):
+        """
+        Initialize log cleanup manager.
+        
+        Args:
+            log_dir: Directory containing log files
+            max_age_days: Maximum age of log files in days (default: 30 days)
+            cleanup_interval_hours: Cleanup interval in hours (default: 24 hours)
+        """
+        self.log_dir = Path(log_dir)
+        self.max_age_days = max_age_days
+        self.cleanup_interval_hours = cleanup_interval_hours
+        self.cleanup_thread = None
+        self.stop_event = threading.Event()
+        self.logger = None
+    
+    def start_cleanup_scheduler(self):
+        """Start the cleanup scheduler in a background thread"""
+        if self.cleanup_thread and self.cleanup_thread.is_alive():
+            return
+        
+        self.stop_event.clear()
+        self.cleanup_thread = threading.Thread(target=self._cleanup_loop, daemon=True)
+        self.cleanup_thread.start()
+        
+        # Get logger for this class
+        if not self.logger:
+            self.logger = logging.getLogger("doris_mcp_server.log_cleanup")
+        
+        self.logger.info(f"Log cleanup scheduler started - cleanup every {self.cleanup_interval_hours}h, max age {self.max_age_days} days")
+    
+    def stop_cleanup_scheduler(self):
+        """Stop the cleanup scheduler"""
+        if self.cleanup_thread and self.cleanup_thread.is_alive():
+            self.stop_event.set()
+            self.cleanup_thread.join(timeout=5)
+            if self.logger:
+                self.logger.info("Log cleanup scheduler stopped")
+    
+    def _cleanup_loop(self):
+        """Background loop for periodic cleanup"""
+        while not self.stop_event.is_set():
+            try:
+                self.cleanup_old_logs()
+                # Sleep for the specified interval, but check stop event every 60 seconds
+                for _ in range(self.cleanup_interval_hours * 60):  # Convert hours to minutes
+                    if self.stop_event.wait(60):  # Wait 60 seconds or until stop event
+                        break
+            except Exception as e:
+                if self.logger:
+                    self.logger.error(f"Error in log cleanup loop: {e}")
+                # Sleep for 5 minutes before retrying
+                self.stop_event.wait(300)
+    
+    def cleanup_old_logs(self):
+        """Clean up old log files based on age"""
+        if not self.log_dir.exists():
+            return
+        
+        current_time = datetime.now()
+        cutoff_time = current_time - timedelta(days=self.max_age_days)
+        
+        cleaned_files = []
+        cleaned_size = 0
+        
+        # Pattern for log files (including backup files)
+        log_patterns = [
+            "doris_mcp_server_*.log",
+            "doris_mcp_server_*.log.*"  # Backup files
+        ]
+        
+        for pattern in log_patterns:
+            for log_file in self.log_dir.glob(pattern):
+                try:
+                    # Get file modification time
+                    file_mtime = datetime.fromtimestamp(log_file.stat().st_mtime)
+                    
+                    if file_mtime < cutoff_time:
+                        file_size = log_file.stat().st_size
+                        log_file.unlink()  # Delete the file
+                        cleaned_files.append(log_file.name)
+                        cleaned_size += file_size
+                        
+                except Exception as e:
+                    if self.logger:
+                        self.logger.warning(f"Failed to cleanup log file {log_file}: {e}")
+        
+        if cleaned_files and self.logger:
+            size_mb = cleaned_size / (1024 * 1024)
+            self.logger.info(f"Cleaned up {len(cleaned_files)} old log files, freed {size_mb:.2f} MB")
+            self.logger.debug(f"Cleaned files: {', '.join(cleaned_files)}")
+    
+    def get_cleanup_stats(self) -> dict:
+        """Get statistics about log files and cleanup status"""
+        if not self.log_dir.exists():
+            return {"error": "Log directory does not exist"}
+        
+        stats = {
+            "log_directory": str(self.log_dir.absolute()),
+            "max_age_days": self.max_age_days,
+            "cleanup_interval_hours": self.cleanup_interval_hours,
+            "scheduler_running": self.cleanup_thread and self.cleanup_thread.is_alive(),
+            "total_files": 0,
+            "total_size_mb": 0,
+            "files_by_age": {"recent": 0, "old": 0},
+            "oldest_file": None,
+            "newest_file": None
+        }
+        
+        current_time = datetime.now()
+        cutoff_time = current_time - timedelta(days=self.max_age_days)
+        oldest_time = None
+        newest_time = None
+        
+        log_patterns = ["doris_mcp_server_*.log", "doris_mcp_server_*.log.*"]
+        
+        for pattern in log_patterns:
+            for log_file in self.log_dir.glob(pattern):
+                try:
+                    file_stat = log_file.stat()
+                    file_mtime = datetime.fromtimestamp(file_stat.st_mtime)
+                    
+                    stats["total_files"] += 1
+                    stats["total_size_mb"] += file_stat.st_size / (1024 * 1024)
+                    
+                    if file_mtime < cutoff_time:
+                        stats["files_by_age"]["old"] += 1
+                    else:
+                        stats["files_by_age"]["recent"] += 1
+                    
+                    if oldest_time is None or file_mtime < oldest_time:
+                        oldest_time = file_mtime
+                        stats["oldest_file"] = {"name": log_file.name, "age_days": (current_time - file_mtime).days}
+                    
+                    if newest_time is None or file_mtime > newest_time:
+                        newest_time = file_mtime
+                        stats["newest_file"] = {"name": log_file.name, "age_days": (current_time - file_mtime).days}
+                        
+                except Exception:
+                    continue
+        
+        stats["total_size_mb"] = round(stats["total_size_mb"], 2)
+        
+        return stats
+
+
+class DorisLoggerManager:
+    """Centralized logger manager for Doris MCP Server"""
+    
+    def __init__(self):
+        self.is_initialized = False
+        self.log_dir = None
+        self.config = None
+        self.loggers = {}
+        self.cleanup_manager = None
+    
+    def setup_logging(self, 
+                     level: str = "INFO",
+                     log_dir: str = "logs",
+                     enable_console: bool = True,
+                     enable_file: bool = True,
+                     enable_audit: bool = True,
+                     audit_file: Optional[str] = None,
+                     max_file_size: int = 10*1024*1024,
+                     backup_count: int = 5,
+                     enable_cleanup: bool = True,
+                     max_age_days: int = 30,
+                     cleanup_interval_hours: int = 24) -> None:
+        """
+        Setup comprehensive logging configuration.
+        
+        Args:
+            level: Base logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
+            log_dir: Directory for log files
+            enable_console: Enable console output
+            enable_file: Enable file logging
+            enable_audit: Enable audit logging
+            audit_file: Custom audit log file path
+            max_file_size: Maximum size per log file (bytes)
+            backup_count: Number of backup files to keep
+            enable_cleanup: Enable automatic log cleanup
+            max_age_days: Maximum age of log files in days (default: 30)
+            cleanup_interval_hours: Cleanup interval in hours (default: 24)
+        """
+        if self.is_initialized:
+            return
+        
+        self.log_dir = Path(log_dir)
+        log_dir_writable = True  # Initialize the variable
+        
+        # Try to create log directory, fallback to console-only if fails
+        try:
+            self.log_dir.mkdir(parents=True, exist_ok=True)
+        except (OSError, PermissionError) as e:
+            # If we can't create log directory (e.g., read-only filesystem in stdio mode),
+            # fall back to console-only logging
+            log_dir_writable = False
+            enable_file = False
+            enable_audit = False
+            enable_cleanup = False
+            # Don't use print() in stdio mode as it interferes with MCP JSON protocol
+            # Log the warning through the logging system instead, which will be handled after setup
+        
+        # Clear existing handlers
+        root_logger = logging.getLogger()
+        for handler in root_logger.handlers[:]:
+            root_logger.removeHandler(handler)
+        
+        # Set root logger level
+        root_logger.setLevel(logging.DEBUG)  # Allow all levels, handlers will filter
+        
+        handlers = []
+        
+        # Console handler
+        if enable_console:
+            console_handler = logging.StreamHandler(sys.stdout)
+            console_handler.setLevel(getattr(logging, level.upper()))
+            console_formatter = TimestampedFormatter(
+                fmt="%(asctime)s.%(msecs)03d %(level_aligned)s %(name)s - %(message)s",
+                datefmt="%Y-%m-%d %H:%M:%S"
+            )
+            console_handler.setFormatter(console_formatter)
+            handlers.append(console_handler)
+        
+        # Level-based file handlers
+        if enable_file:
+            level_handler = LevelBasedFileHandler(
+                log_dir=str(self.log_dir),
+                base_name="doris_mcp_server",
+                max_bytes=max_file_size,
+                backup_count=backup_count
+            )
+            level_handler.setLevel(logging.DEBUG)  # Accept all levels
+            handlers.append(level_handler)
+        
+        # Combined application log (all levels in one file)
+        if enable_file:
+            app_log_file = self.log_dir / "doris_mcp_server_all.log"
+            app_handler = logging.handlers.RotatingFileHandler(
+                app_log_file,
+                maxBytes=max_file_size,
+                backupCount=backup_count,
+                encoding='utf-8'
+            )
+            app_handler.setLevel(getattr(logging, level.upper()))
+            app_formatter = TimestampedFormatter()
+            app_handler.setFormatter(app_formatter)
+            handlers.append(app_handler)
+        
+        # Audit logger (separate from main logging)
+        if enable_audit:
+            audit_file_path = audit_file or str(self.log_dir / "doris_mcp_server_audit.log")
+            audit_logger = logging.getLogger("audit")
+            audit_logger.setLevel(logging.INFO)
+            
+            # Clear existing audit handlers
+            for handler in audit_logger.handlers[:]:
+                audit_logger.removeHandler(handler)
+            
+            audit_handler = logging.handlers.RotatingFileHandler(
+                audit_file_path,
+                maxBytes=max_file_size,
+                backupCount=backup_count,
+                encoding='utf-8'
+            )
+            audit_formatter = TimestampedFormatter(
+                fmt="%(asctime)s.%(msecs)03d [AUDIT] %(name)s - %(message)s",
+                datefmt="%Y-%m-%d %H:%M:%S"
+            )
+            audit_handler.setFormatter(audit_formatter)
+            audit_logger.addHandler(audit_handler)
+            audit_logger.propagate = False  # Don't propagate to root logger
+        
+        # Add all handlers to root logger
+        for handler in handlers:
+            root_logger.addHandler(handler)
+        
+        # Setup package-specific loggers
+        self._setup_package_loggers(level)
+        
+        # Setup log cleanup manager
+        if enable_cleanup and enable_file:
+            self.cleanup_manager = LogCleanupManager(
+                log_dir=str(self.log_dir),
+                max_age_days=max_age_days,
+                cleanup_interval_hours=cleanup_interval_hours
+            )
+            self.cleanup_manager.start_cleanup_scheduler()
+        
+        self.is_initialized = True
+        
+        # Log initialization message
+        logger = self.get_logger("doris_mcp_server.logger")
+        logger.info("=" * 80)
+        logger.info("Doris MCP Server Logging System Initialized")
+        logger.info(f"Log Level: {level}")
+        if log_dir_writable:
+            logger.info(f"Log Directory: {self.log_dir.absolute()}")
+        else:
+            logger.info("Log Directory: Not available (console-only mode)")
+        logger.info(f"Console Logging: {'Enabled' if enable_console else 'Disabled'}")
+        logger.info(f"File Logging: {'Enabled' if enable_file else 'Disabled (fallback mode)'}")
+        logger.info(f"Audit Logging: {'Enabled' if enable_audit else 'Disabled (fallback mode)'}")
+        logger.info(f"Log Cleanup: {'Enabled' if enable_cleanup and enable_file else 'Disabled (fallback mode)'}")
+        if enable_cleanup and enable_file:
+            logger.info(f"Cleanup Settings: Max age {max_age_days} days, interval {cleanup_interval_hours}h")
+        if not log_dir_writable:
+            logger.warning("Running in console-only logging mode due to filesystem permissions")
+            logger.warning(f"Could not create log directory '{log_dir}' - stdio mode fallback enabled")
+        logger.info("=" * 80)
+    
+    def _setup_package_loggers(self, level: str):
+        """Setup specific loggers for different modules"""
+        package_loggers = [
+            "doris_mcp_server",
+            "doris_mcp_server.main",
+            "doris_mcp_server.utils",
+            "doris_mcp_server.tools",
+            "doris_mcp_client"
+        ]
+        
+        for logger_name in package_loggers:
+            logger = logging.getLogger(logger_name)
+            logger.setLevel(getattr(logging, level.upper()))
+            # Don't add handlers here - they inherit from root logger
+    
+    def get_logger(self, name: str) -> logging.Logger:
+        """
+        Get a logger instance with proper configuration.
+        
+        Args:
+            name: Logger name (usually __name__)
+            
+        Returns:
+            Configured logger instance
+        """
+        if name not in self.loggers:
+            logger = logging.getLogger(name)
+            self.loggers[name] = logger
+        
+        return self.loggers[name]
+    
+    def get_audit_logger(self) -> logging.Logger:
+        """Get the audit logger"""
+        return logging.getLogger("audit")
+    
+    def log_system_info(self):
+        """Log system information for debugging"""
+        logger = self.get_logger("doris_mcp_server.system")
+        logger.info("System Information:")
+        logger.info(f"Python Version: {sys.version}")
+        logger.info(f"Platform: {sys.platform}")
+        logger.info(f"Working Directory: {os.getcwd()}")
+        logger.info(f"Process ID: {os.getpid()}")
+        
+        # Log environment variables (filtered)
+        env_vars = ["LOG_LEVEL", "LOG_FILE_PATH", "ENABLE_AUDIT", "AUDIT_FILE_PATH"]
+        for var in env_vars:
+            value = os.getenv(var, "Not Set")
+            logger.info(f"Environment {var}: {value}")
+    
+    def get_cleanup_stats(self) -> dict:
+        """Get log cleanup statistics"""
+        if self.cleanup_manager:
+            return self.cleanup_manager.get_cleanup_stats()
+        else:
+            return {"error": "Log cleanup is not enabled"}
+    
+    def manual_cleanup(self) -> dict:
+        """Manually trigger log cleanup and return statistics"""
+        if self.cleanup_manager:
+            self.cleanup_manager.cleanup_old_logs()
+            return self.cleanup_manager.get_cleanup_stats()
+        else:
+            return {"error": "Log cleanup is not enabled"}
+    
+    def shutdown(self):
+        """Shutdown logging system"""
+        if not self.is_initialized:
+            return
+        
+        logger = self.get_logger("doris_mcp_server.logger")
+        logger.info("Shutting down logging system...")
+        
+        # Stop cleanup manager
+        if self.cleanup_manager:
+            self.cleanup_manager.stop_cleanup_scheduler()
+        
+        # Close all handlers
+        root_logger = logging.getLogger()
+        for handler in root_logger.handlers[:]:
+            try:
+                handler.close()
+            except Exception as e:
+                print(f"Error closing handler: {e}")
+        
+        # Close audit logger handlers
+        audit_logger = logging.getLogger("audit")
+        for handler in audit_logger.handlers[:]:
+            try:
+                handler.close()
+            except Exception as e:
+                print(f"Error closing audit handler: {e}")
+        
+        self.is_initialized = False
+
+
+# Global logger manager instance
+_logger_manager = DorisLoggerManager()
+
+
+def setup_logging(level: str = "INFO",
+                 log_dir: str = "logs",
+                 enable_console: bool = True,
+                 enable_file: bool = True,
+                 enable_audit: bool = True,
+                 audit_file: Optional[str] = None,
+                 max_file_size: int = 10*1024*1024,
+                 backup_count: int = 5,
+                 enable_cleanup: bool = True,
+                 max_age_days: int = 30,
+                 cleanup_interval_hours: int = 24) -> None:
+    """
+    Setup logging configuration (convenience function).
+    
+    Args:
+        level: Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
+        log_dir: Directory for log files
+        enable_console: Enable console output
+        enable_file: Enable file logging
+        enable_audit: Enable audit logging
+        audit_file: Custom audit log file path
+        max_file_size: Maximum size per log file (bytes)
+        backup_count: Number of backup files to keep
+        enable_cleanup: Enable automatic log cleanup
+        max_age_days: Maximum age of log files in days (default: 30)
+        cleanup_interval_hours: Cleanup interval in hours (default: 24)
+    """
+    _logger_manager.setup_logging(
+        level=level,
+        log_dir=log_dir,
+        enable_console=enable_console,
+        enable_file=enable_file,
+        enable_audit=enable_audit,
+        audit_file=audit_file,
+        max_file_size=max_file_size,
+        backup_count=backup_count,
+        enable_cleanup=enable_cleanup,
+        max_age_days=max_age_days,
+        cleanup_interval_hours=cleanup_interval_hours
+    )
 
 
 def get_logger(name: str) -> logging.Logger:
@@ -93,9 +589,60 @@ def get_logger(name: str) -> logging.Logger:
     Get a logger instance.
 
     Args:
-        name: Logger name
+        name: Logger name (usually __name__)
 
     Returns:
-        Logger instance
+        Configured logger instance
     """
-    return logging.getLogger(name)
+    return _logger_manager.get_logger(name)
+
+
+def get_audit_logger() -> logging.Logger:
+    """Get the audit logger"""
+    return _logger_manager.get_audit_logger()
+
+
+def log_system_info():
+    """Log system information for debugging"""
+    _logger_manager.log_system_info()
+
+
+def get_cleanup_stats() -> dict:
+    """Get log cleanup statistics"""
+    return _logger_manager.get_cleanup_stats()
+
+
+def manual_cleanup() -> dict:
+    """Manually trigger log cleanup and return statistics"""
+    return _logger_manager.manual_cleanup()
+
+
+def shutdown_logging():
+    """Shutdown logging system"""
+    _logger_manager.shutdown()
+
+
+# Compatibility function for existing code
+def setup_logging_old(level: str = "INFO",
+                     log_file: str | None = None,
+                     log_format: str | None = None) -> None:
+    """
+    Legacy setup function for backward compatibility.
+    
+    Args:
+        level: Logging level (DEBUG, INFO, WARNING, ERROR)
+        log_file: Optional log file path (deprecated - use log_dir instead)
+        log_format: Optional custom log format (deprecated)
+    """
+    # Extract directory from log_file if provided
+    log_dir = "logs"
+    if log_file:
+        log_dir = str(Path(log_file).parent)
+    
+    setup_logging(
+        level=level,
+        log_dir=log_dir,
+        enable_console=True,
+        enable_file=True,
+        enable_audit=True
+    )

doris_mcp_server/utils/query_executor.py

@@ -33,7 +33,11 @@ from datetime import datetime, timedelta, date
 from typing import Any, Dict
 from decimal import Decimal
 
+import sqlparse
+
 from .db import DorisConnectionManager, QueryResult
+from .logger import get_logger
+from .sql_security_utils import get_auth_context
 
 
 @dataclass
@@ -92,7 +96,7 @@ class QueryCache:
         self.max_size = max_size
         self.default_ttl = default_ttl
         self.cache: dict[str, CachedQuery] = {}
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
 
     def _generate_cache_key(
         self, sql: str, parameters: dict[str, Any] | None = None
@@ -194,7 +198,7 @@ class QueryOptimizer:
 
     def __init__(self, config):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         self.optimization_rules = self._load_optimization_rules()
 
     def _load_optimization_rules(self) -> list[dict[str, Any]]:
@@ -318,7 +322,7 @@ class DorisQueryExecutor:
     def __init__(self, connection_manager: DorisConnectionManager, config=None):
         self.connection_manager = connection_manager
         self.config = config or self._create_default_config()
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
 
         # Initialize components
         cache_config = getattr(self.config, 'performance', None)
@@ -425,27 +429,27 @@ class DorisQueryExecutor:
         self, query_request: QueryRequest, auth_context
     ) -> QueryResult:
         """Internal query execution"""
+        
+        # Database configuration should already be handled during authentication
+        # No need to configure again during query execution
+        
         # Optimize query
         optimized_sql = await self.query_optimizer.optimize_query(
             query_request.sql, {"user_roles": getattr(auth_context, 'roles', [])}
         )
 
         # Execute query
-        connection = await self.connection_manager.get_connection(
-            query_request.session_id
-        )
-
         # Set timeout if specified
         if query_request.timeout:
             try:
                 result = await asyncio.wait_for(
-                    connection.execute(optimized_sql, query_request.parameters, auth_context),
+                    self.connection_manager.execute_query(query_request.session_id, optimized_sql, query_request.parameters, auth_context),
                     timeout=query_request.timeout
                 )
             except asyncio.TimeoutError:
                 raise Exception(f"Query timeout after {query_request.timeout} seconds")
         else:
-            result = await connection.execute(optimized_sql, query_request.parameters, auth_context)
+            result = await self.connection_manager.execute_query(query_request.session_id, optimized_sql, query_request.parameters, auth_context)
 
         return result
 
@@ -466,6 +470,51 @@ class DorisQueryExecutor:
                 f"Slow query detected: {execution_time:.2f}s (threshold: {self.slow_query_threshold}s)"
             )
 
+    async def execute_batch_sqls_for_mcp(
+            self, sqls: list[str],
+            timeout: int = 30,
+            session_id: str = "mcp_session",
+            user_id: str = "mcp_user",
+            auth_context=None
+    ) -> dict[str, Any]:
+        """Execute multiple sqls in batch"""
+        if not sqls:
+            return {
+                "success": False,
+                "error": "SQL query is required",
+                "data": None
+            }
+        query_requests = [
+            QueryRequest(
+                sql=sql,
+                session_id=session_id,
+                user_id=user_id,
+                timeout=timeout,
+                cache_enabled=False
+            )
+            for sql in sqls
+        ]
+        query_results = await self.execute_batch_queries(query_requests, auth_context)
+        # Serialize data for JSON response
+        results = [
+            {
+                "data": [self._serialize_row_data(data) for data in result.data],
+                "row_count": result.row_count,
+                "execution_time": result.execution_time,
+                "metadata": {
+                    "columns": result.metadata.get("columns", []),
+                    "query": result.sql
+                }
+            }
+            for result in query_results
+        ]
+
+        return {
+            "success": True,
+            "multiple_results": True,
+            "results": results
+        }
+
     async def execute_batch_queries(
         self, query_requests: list[QueryRequest], auth_context=None
     ) -> list[QueryResult]:
@@ -483,20 +532,24 @@ class DorisQueryExecutor:
             self.execute_query(request, auth_context) for request in query_requests
         ]
 
-        try:
-            results = await asyncio.gather(*tasks, return_exceptions=True)
-        except Exception as e:
-            self.logger.error(f"Batch query execution failed: {e}")
-            raise
+        query_results = []
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        for result in results:
+            if isinstance(result, Exception):
+                self.logger.error(f"Batch query execution failed: {result}")
+                raise result
+            else:
+                query_results.append(result)
 
-        return results
+        return query_results
 
     async def explain_query(self, sql: str, session_id: str) -> dict[str, Any]:
         """Get query execution plan"""
         explain_sql = f"EXPLAIN {sql}"
 
         connection = await self.connection_manager.get_connection(session_id)
-        result = await connection.execute(explain_sql)
+        auth_context = get_auth_context()
+        result = await connection.execute(explain_sql, auth_context=auth_context)
 
         return {
             "query": sql,
@@ -540,87 +593,192 @@ class DorisQueryExecutor:
         await self.query_cache.clear_all()
 
     async def execute_sql_for_mcp(
-        self, 
-        sql: str, 
-        limit: int = 1000, 
+        self,
+        sql: str,
+        limit: int = 1000,
         timeout: int = 30,
         session_id: str = "mcp_session",
-        user_id: str = "mcp_user"
+        user_id: str = "mcp_user",
+        auth_context = None  # FIX for Issue #62 Bug 1: Accept auth_context with token
     ) -> Dict[str, Any]:
-        """Execute SQL query for MCP interface - unified method"""
-        try:
-            if not sql:
-                return {
-                    "success": False,
-                    "error": "SQL query is required",
-                    "data": None
-                }
+        """Execute SQL query for MCP interface - unified method
 
-            # Add LIMIT if not present and it's a SELECT query
-            if sql.upper().startswith("SELECT") and "LIMIT" not in sql.upper():
-                if sql.endswith(";"):
-                    sql = sql[:-1]
-                sql = f"{sql} LIMIT {limit}"
+        FIX for Issue #62 Bug 1: Now accepts auth_context parameter to support token-bound database configuration
+        """
+        max_retries = 2
+        retry_count = 0
 
-            # Create auth context for MCP calls
-            class MockAuthContext:
-                def __init__(self):
-                    self.user_id = user_id
-                    self.roles = ["data_analyst"]
-                    self.permissions = ["read_data", "execute_query"]
-                    self.session_id = session_id
-                    self.security_level = "internal"
+        while retry_count <= max_retries:
+            try:
+                if not sql:
+                    return {
+                        "success": False,
+                        "error": "SQL query is required",
+                        "data": None
+                    }
 
-            auth_context = MockAuthContext()
-            
-            # Create query request
-            query_request = QueryRequest(
-                sql=sql,
-                session_id=session_id,
-                user_id=user_id,
-                timeout=timeout,
-                cache_enabled=True
-            )
-            
-            # Execute query
-            result = await self.execute_query(query_request, auth_context)
-            
-            # Process results
-            processed_data = []
-            if result.data:
+                # Import required security modules
+                from .security import DorisSecurityManager, AuthContext, SecurityLevel
+
+                # FIX: Use provided auth_context if available (contains token for DB config)
+                # Otherwise create default auth context for backward compatibility
+                if auth_context is None:
+                    auth_context = AuthContext(
+                        user_id=user_id,
+                        roles=["read_only_user"],  # Restrictive role for MCP interface
+                        permissions=["read_data"],  # Only read permissions
+                        session_id=session_id,
+                        security_level=SecurityLevel.INTERNAL,
+                        token=""  # No token in default context
+                    )
+                else:
+                    # Use provided auth_context (may contain token for database configuration)
+                    self.logger.debug(f"Using provided auth_context with token: {bool(hasattr(auth_context, 'token') and auth_context.token)}")
+
+                # Perform SQL security validation if enabled
+                if hasattr(self.connection_manager, 'config') and hasattr(self.connection_manager.config, 'security'):
+                    if self.connection_manager.config.security.enable_security_check:
+                        try:
+                            # 🔧 FIX: Use existing security_manager to avoid creating multiple TokenManager instances
+                            # Creating new DorisSecurityManager each time causes multiple hot reload monitors
+                            security_manager = getattr(self.connection_manager, 'security_manager', None)
+                            if not security_manager:
+                                # Fallback: create new one only if not available (should rarely happen)
+                                self.logger.warning("No existing security_manager, creating new instance")
+                                security_manager = DorisSecurityManager(self.connection_manager.config)
+                            validation_result = await security_manager.validate_sql_security(sql, auth_context)
+
+                            if not validation_result.is_valid:
+                                self.logger.warning(f"SQL security validation failed for query: {sql[:100]}...")
+                                return {
+                                    "success": False,
+                                    "error": f"SQL security validation failed: {validation_result.error_message}",
+                                    "error_type": "security_violation",
+                                    "blocked_operations": validation_result.blocked_operations,
+                                    "risk_level": validation_result.risk_level,
+                                    "data": None,
+                                    "metadata": {
+                                        "query": sql,
+                                        "validation_details": {
+                                            "blocked_operations": validation_result.blocked_operations,
+                                            "risk_level": validation_result.risk_level
+                                        }
+                                    }
+                                }
+                            else:
+                                self.logger.debug(f"SQL security validation passed for query: {sql[:100]}...")
+                        except Exception as security_error:
+                            self.logger.error(f"Security validation error: {str(security_error)}")
+                            # In case of security validation error, fail safe
+                            return {
+                                "success": False,
+                                "error": f"Security validation system error: {str(security_error)}",
+                                "error_type": "security_system_error",
+                                "data": None,
+                                "metadata": {
+                                    "query": sql,
+                                    "security_error": str(security_error)
+                                }
+                            }
+                    else:
+                        self.logger.info("SQL security check is disabled in configuration")
+                else:
+                    self.logger.warning("Security configuration not found, proceeding without validation")
+
+                # Add LIMIT if not present and it's a SELECT query
+                if sql.upper().startswith("SELECT") and "LIMIT" not in sql.upper():
+                    if sql.endswith(";"):
+                        sql = sql[:-1]
+                    sql = f"{sql} LIMIT {limit}"
+                
+                all_statements = [
+                    s.strip()
+                    for s in sqlparse.split(sql)
+                    if s.strip()
+                ]
+                if len(all_statements) > 1:
+                    return await self.execute_batch_sqls_for_mcp(sqls=all_statements, timeout=timeout,
+                                                                 session_id=session_id, user_id=user_id,
+                                                                 auth_context=auth_context)
+                # Create query request
+                query_request = QueryRequest(
+                    sql=sql,
+                    session_id=session_id,
+                    user_id=user_id,
+                    timeout=timeout,
+                    cache_enabled=False  # Disable cache for MCP calls to ensure fresh data
+                )
+                
+                # Execute query with retry logic
+                result = await self.execute_query(query_request, auth_context)
+                
+                # Serialize data for JSON response
+                serialized_data = []
                 for row in result.data:
-                    processed_row = self._serialize_row_data(row)
-                    processed_data.append(processed_row)
+                    serialized_data.append(self._serialize_row_data(row))
 
-            return {
-                "success": True,
-                "data": processed_data,
-                "metadata": {
+                return {
+                    "success": True,
+                    "data": serialized_data,
                     "row_count": result.row_count,
                     "execution_time": result.execution_time,
-                    "columns": result.metadata.get("columns", []),
-                    "query": sql
-                },
-                "error": None
-            }
-
-        except Exception as e:
-            error_msg = str(e)
-            self.logger.error(f"SQL execution error: {error_msg}")
-            
-            # Analyze error for better user feedback
-            error_analysis = self._analyze_error(error_msg)
-            
-            return {
-                "success": False,
-                "error": error_analysis.get("user_message", error_msg),
-                "error_type": error_analysis.get("error_type", "execution_error"),
-                "data": None,
-                "metadata": {
-                    "query": sql,
-                    "error_details": error_msg
+                    "metadata": {
+                        "columns": result.metadata.get("columns", []),
+                        "query": sql
+                    }
                 }
+                
+            except Exception as e:
+                error_msg = str(e)
+                error_str = error_msg.lower()
+                
+                # Check if it's a connection-related error that we should retry
+                connection_errors = [
+                    "at_eof", "connection", "closed", "nonetype", 
+                    "transport", "reader", "broken pipe", "connection reset"
+                ]
+                
+                is_connection_error = any(err in error_str for err in connection_errors)
+                
+                if is_connection_error and retry_count < max_retries:
+                    retry_count += 1
+                    self.logger.warning(f"Connection error detected, retrying ({retry_count}/{max_retries}): {e}")
+                    
+                    # Release the problematic connection
+                    try:
+                        await self.connection_manager.release_connection(session_id)
+                    except Exception:
+                        pass  # Ignore cleanup errors
+                    
+                    # Wait a bit before retry
+                    await asyncio.sleep(0.5 * retry_count)
+                    continue
+                else:
+                    # If we've exhausted retries or it's not a connection error, return error
+                    error_analysis = self._analyze_error(error_msg)
+                    
+                    return {
+                        "success": False,
+                        "error": error_analysis.get("user_message", error_msg),
+                        "error_type": error_analysis.get("error_type", "general_error"),
+                        "data": None,
+                        "metadata": {
+                            "query": sql,
+                            "error_details": error_msg,
+                            "retry_count": retry_count
+                        }
+                    }
+        
+        # This should never be reached, but just in case
+        return {
+            "success": False,
+            "error": "Maximum retries exceeded",
+            "data": None,
+            "metadata": {
+                "query": sql,
+                "retry_count": retry_count
             }
+        }
 
     def _serialize_row_data(self, row_data: Dict[str, Any]) -> Dict[str, Any]:
         """Serialize row data for JSON response"""
@@ -649,7 +807,12 @@ class DorisQueryExecutor:
         """Analyze error message and provide user-friendly feedback"""
         error_msg_lower = error_message.lower()
         
-        if "table" in error_msg_lower and "doesn't exist" in error_msg_lower:
+        if "at_eof" in error_msg_lower or "nonetype" in error_msg_lower and "at_eof" in error_msg_lower:
+            return {
+                "error_type": "connection_lost",
+                "user_message": "Database connection was lost. The query has been automatically retried. If this persists, please restart the server."
+            }
+        elif "table" in error_msg_lower and "doesn't exist" in error_msg_lower:
             return {
                 "error_type": "table_not_found",
                 "user_message": "The specified table does not exist. Please check the table name and database."
@@ -674,6 +837,11 @@ class DorisQueryExecutor:
                 "error_type": "timeout",
                 "user_message": "Query execution timed out. Try simplifying your query or adding more specific filters."
             }
+        elif "connection" in error_msg_lower and ("closed" in error_msg_lower or "reset" in error_msg_lower):
+            return {
+                "error_type": "connection_error",
+                "user_message": "Database connection was interrupted. The query has been automatically retried."
+            }
         else:
             return {
                 "error_type": "general_error",
@@ -701,7 +869,7 @@ class QueryPerformanceMonitor:
 
     def __init__(self, query_executor: DorisQueryExecutor):
         self.query_executor = query_executor
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         self.performance_records = []
 
     async def record_query_performance(
@@ -785,32 +953,51 @@ class QueryPerformanceMonitor:
 
 # Unified convenience function for MCP integration
 async def execute_sql_query(sql: str, connection_manager: DorisConnectionManager, **kwargs) -> Dict[str, Any]:
-    """Execute SQL query - unified convenience function for MCP tools"""
+    """Execute SQL query - unified convenience function for MCP tools
+
+    This function now includes security validation to ensure safe query execution.
+    All queries are validated against the configured security policies before execution.
+
+    FIX for Issue #62 Bug 1: Now supports auth_context parameter for token-bound database configuration
+    FIX for Issue #58 Problem 2: Removed executor.close() to prevent ClosedResourceError in multi-worker mode
+    """
     try:
-        # Create query executor
+        # Create query executor with the connection manager's configuration
         executor = DorisQueryExecutor(connection_manager)
-        
-        try:
-            # Extract parameters from kwargs or use defaults
-            limit = kwargs.get("limit", 1000)
-            timeout = kwargs.get("timeout", 30)
-            session_id = kwargs.get("session_id", "mcp_session")
-            user_id = kwargs.get("user_id", "mcp_user")
-            
-            result = await executor.execute_sql_for_mcp(
-                sql=sql,
-                limit=limit,
-                timeout=timeout,
-                session_id=session_id,
-                user_id=user_id
-            )
-            return result
-        finally:
-            await executor.close()
-            
+
+        # Extract parameters from kwargs or use defaults
+        limit = kwargs.get("limit", 1000)
+        timeout = kwargs.get("timeout", 30)
+        session_id = kwargs.get("session_id", "mcp_session")
+        user_id = kwargs.get("user_id", "mcp_user")
+        auth_context = kwargs.get("auth_context", None)  # FIX: Extract auth_context
+
+        # The execute_sql_for_mcp method now includes security validation
+        result = await executor.execute_sql_for_mcp(
+            sql=sql,
+            limit=limit,
+            timeout=timeout,
+            session_id=session_id,
+            user_id=user_id,
+            auth_context=auth_context  # FIX: Pass auth_context with token
+        )
+
+        # FIX for Issue #58 Problem 2: Do NOT close executor here
+        # In multi-worker mode, closing here causes ClosedResourceError
+        # The executor's resources (cache, background tasks) will be managed
+        # by the connection_manager lifecycle and Python's garbage collection
+        # This prevents premature cleanup while MCP session manager is still processing
+
+        return result
+
     except Exception as e:
         return {
             "success": False,
             "error": f"Query execution failed: {str(e)}",
-            "data": None
+            "error_type": "execution_error",
+            "data": None,
+            "metadata": {
+                "query": sql,
+                "execution_error": str(e)
+            }
         }

doris_mcp_server/utils/security.py

@@ -20,18 +20,25 @@ Doris Security Management Module
 Implements enterprise-level authentication, authorization, SQL security validation and data masking functionality
 """
 
-import hashlib
 import logging
 import re
-from dataclasses import dataclass
+from contextvars import ContextVar
+from dataclasses import dataclass, field
 from datetime import datetime
 from enum import Enum
-from typing import Any
+from typing import Any, Optional
 
 import sqlparse
 from sqlparse.sql import Statement
 from sqlparse.tokens import Keyword, Name
 
+from .logger import get_logger
+from .config import DatabaseConfig
+
+# Global ContextVar for auth_context - must be a single instance shared across all modules
+# This allows token-bound database configuration to work correctly in concurrent requests
+mcp_auth_context_var: ContextVar['AuthContext'] = ContextVar('mcp_auth_context', default=None)
+
 
 class SecurityLevel(Enum):
     """Security level enumeration"""
@@ -44,15 +51,18 @@ class SecurityLevel(Enum):
 
 @dataclass
 class AuthContext:
-    """Authentication context"""
+    """Authentication context for audit and session tracking"""
 
-    user_id: str
-    roles: list[str]
-    permissions: list[str]
-    session_id: str
-    login_time: datetime | None = None
+    token_id: str = ""  # Token identifier for audit logging  
+    user_id: str = ""  # User identifier
+    roles: list[str] = field(default_factory=list)  # User roles
+    permissions: list[str] = field(default_factory=list)  # User permissions
+    security_level: 'SecurityLevel' = field(default_factory=lambda: SecurityLevel.INTERNAL)  # Security level
+    client_ip: str = "unknown"  # Client IP address
+    session_id: str = ""  # Session identifier
+    login_time: datetime = field(default_factory=datetime.utcnow)
     last_activity: datetime | None = None
-    security_level: SecurityLevel = SecurityLevel.INTERNAL
+    token: str = ""  # Raw token for token-bound database configuration
 
 
 @dataclass
@@ -85,12 +95,13 @@ class DorisSecurityManager:
     Provides complete security control functionality, including authentication, authorization, SQL security validation and data masking
     """
 
-    def __init__(self, config):
+    def __init__(self, config, connection_manager=None):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
+        self.connection_manager = connection_manager
 
         # Initialize security components
-        self.auth_provider = AuthenticationProvider(config)
+        self.auth_provider = AuthenticationProvider(config, self)
         self.authz_provider = AuthorizationProvider(config)
         self.sql_validator = SQLSecurityValidator(config)
         self.masking_processor = DataMaskingProcessor(config)
@@ -99,32 +110,56 @@ class DorisSecurityManager:
         self.blocked_keywords = self._load_blocked_keywords()
         self.sensitive_tables = self._load_sensitive_tables()
         self.masking_rules = self._load_masking_rules()
+        
+        # Track initialization state
+        self._initialized = False
+
+    async def initialize(self):
+        """Initialize security manager components"""
+        if self._initialized:
+            return
+            
+        try:
+            # Initialize authentication provider (for JWT setup)
+            await self.auth_provider.initialize()
+            
+            self._initialized = True
+            self.logger.info("DorisSecurityManager initialized successfully")
+            
+        except Exception as e:
+            self.logger.error(f"Failed to initialize DorisSecurityManager: {e}")
+            raise
+
+    async def shutdown(self):
+        """Shutdown security manager components"""
+        try:
+            await self.auth_provider.shutdown()
+            self._initialized = False
+            self.logger.info("DorisSecurityManager shutdown completed")
+            
+        except Exception as e:
+            self.logger.error(f"Error during DorisSecurityManager shutdown: {e}")
+            raise
 
     def _load_blocked_keywords(self) -> set[str]:
-        """Load blocked SQL keywords"""
-        default_blocked = {
-            "DROP",
-            "DELETE",
-            "TRUNCATE",
-            "ALTER",
-            "CREATE",
-            "INSERT",
-            "UPDATE",
-            "GRANT",
-            "REVOKE",
-            "EXEC",
-            "EXECUTE",
-            "SHUTDOWN",
-            "KILL",
-        }
-
-        # Load custom rules from configuration file
+        """Load blocked SQL keywords from configuration"""
+        # Load keywords from configuration, unified source of truth
         if hasattr(self.config, 'get'):
-            custom_blocked = set(self.config.get("blocked_keywords", []))
+            # Dictionary-style configuration
+            blocked_keywords = self.config.get("blocked_keywords", [])
+        elif hasattr(self.config, 'security') and hasattr(self.config.security, 'blocked_keywords'):
+            # DorisConfig object, get through security.blocked_keywords
+            blocked_keywords = self.config.security.blocked_keywords
         else:
-            custom_blocked = set()
+            # Fallback to default if no configuration available
+            blocked_keywords = [
+                "DROP", "CREATE", "ALTER", "TRUNCATE",
+                "DELETE", "INSERT", "UPDATE", 
+                "GRANT", "REVOKE",
+                "EXEC", "EXECUTE", "SHUTDOWN", "KILL"
+            ]
 
-        return default_blocked.union(custom_blocked)
+        return set(blocked_keywords)
 
     def _load_sensitive_tables(self) -> dict[str, SecurityLevel]:
         """Load sensitive table configuration"""
@@ -189,8 +224,59 @@ class DorisSecurityManager:
         return default_rules
 
     async def authenticate_request(self, auth_info: dict[str, Any]) -> AuthContext:
-        """Validate request authentication information"""
-        return await self.auth_provider.authenticate(auth_info)
+        """Validate request authentication information
+        
+        Tries authentication methods in order: Token -> JWT -> OAuth
+        Any one method succeeding allows access
+        If all methods are disabled, returns anonymous context
+        """
+        # Check if any authentication method is enabled
+        if not (self.config.security.enable_token_auth or 
+                self.config.security.enable_jwt_auth or 
+                self.config.security.enable_oauth_auth):
+            self.logger.debug("All authentication methods are disabled")
+            # Return anonymous context when no authentication is enabled
+            return AuthContext(
+                token_id="anonymous",
+                user_id="anonymous",
+                roles=["anonymous"],
+                permissions=["read"],
+                security_level=SecurityLevel.PUBLIC,
+                client_ip=auth_info.get("client_ip", "unknown"),
+                session_id="anonymous_session"
+            )
+        
+        # Try authentication methods in order of preference
+        last_error = None
+        
+        # 1. Try Token authentication first (most common)
+        if self.config.security.enable_token_auth:
+            try:
+                return await self.auth_provider.authenticate_token(auth_info)
+            except Exception as e:
+                self.logger.debug(f"Token authentication failed: {e}")
+                last_error = e
+        
+        # 2. Try JWT authentication
+        if self.config.security.enable_jwt_auth:
+            try:
+                return await self.auth_provider.authenticate_jwt(auth_info)
+            except Exception as e:
+                self.logger.debug(f"JWT authentication failed: {e}")
+                last_error = e
+        
+        # 3. Try OAuth authentication
+        if self.config.security.enable_oauth_auth:
+            try:
+                return await self.auth_provider.authenticate_oauth(auth_info)
+            except Exception as e:
+                self.logger.debug(f"OAuth authentication failed: {e}")
+                last_error = e
+        
+        # All enabled authentication methods failed
+        error_message = f"Authentication failed: {str(last_error)}" if last_error else "No authentication method succeeded"
+        self.logger.warning(f"Authentication failed for client {auth_info.get('client_ip', 'unknown')}: {error_message}")
+        raise ValueError(error_message)
 
     async def authorize_resource_access(
         self, auth_context: AuthContext, resource_uri: str
@@ -212,43 +298,362 @@ class DorisSecurityManager:
         """Apply data masking processing"""
         return await self.masking_processor.process(data, auth_context)
 
+    # OAuth-specific methods
+    def get_oauth_authorization_url(self) -> tuple[str, str]:
+        """Get OAuth authorization URL
+        
+        Returns:
+            Tuple of (authorization_url, state)
+        """
+        if not self.auth_provider.oauth_provider:
+            raise ValueError("OAuth is not enabled")
+        return self.auth_provider.oauth_provider.get_authorization_url()
+
+    async def handle_oauth_callback(self, code: str, state: str) -> AuthContext:
+        """Handle OAuth callback
+        
+        Args:
+            code: Authorization code from OAuth provider
+            state: State parameter for CSRF protection
+            
+        Returns:
+            AuthContext for authenticated user
+        """
+        if not self.auth_provider.oauth_provider:
+            raise ValueError("OAuth is not enabled")
+        return await self.auth_provider.oauth_provider.handle_callback(code, state)
+
+    def get_oauth_provider_info(self) -> dict[str, Any]:
+        """Get OAuth provider information
+        
+        Returns:
+            OAuth provider information
+        """
+        if not self.auth_provider.oauth_provider:
+            return {"enabled": False}
+        return self.auth_provider.oauth_provider.get_provider_info()
+
+    # Token management methods
+    async def create_token(
+        self,
+        token_id: str,
+        expires_hours: Optional[int] = None,
+        description: str = "",
+        custom_token: Optional[str] = None,
+        database_config: Optional[DatabaseConfig] = None
+    ) -> str:
+        """Create a new API access token
+        
+        Args:
+            token_id: Unique token identifier for audit and management
+            expires_hours: Token expiration in hours (None for no expiration)
+            description: Token description for management purposes
+            custom_token: Custom token string (if None, generates random token)
+            database_config: Optional database configuration for this token
+            
+        Returns:
+            Generated token string
+        """
+        if not self.auth_provider.token_manager:
+            raise ValueError("Token manager not initialized")
+        
+        return await self.auth_provider.token_manager.create_token(
+            token_id=token_id,
+            expires_hours=expires_hours,
+            description=description,
+            custom_token=custom_token,
+            database_config=database_config
+        )
+    
+    async def revoke_token(self, token_id: str) -> bool:
+        """Revoke a token by token ID
+        
+        Args:
+            token_id: Token ID to revoke
+            
+        Returns:
+            True if token was revoked successfully
+        """
+        if not self.auth_provider.token_manager:
+            raise ValueError("Token manager not initialized")
+        
+        return await self.auth_provider.token_manager.revoke_token(token_id)
+    
+    async def list_tokens(self) -> list[dict[str, Any]]:
+        """List all tokens (without sensitive data)
+        
+        Returns:
+            List of token information
+        """
+        if not self.auth_provider.token_manager:
+            raise ValueError("Token manager not initialized")
+        
+        return await self.auth_provider.token_manager.list_tokens()
+    
+    async def cleanup_expired_tokens(self) -> int:
+        """Remove expired tokens and return count
+        
+        Returns:
+            Number of expired tokens removed
+        """
+        if not self.auth_provider.token_manager:
+            return 0
+        
+        return await self.auth_provider.token_manager.cleanup_expired_tokens()
+    
+    def get_token_stats(self) -> dict[str, Any]:
+        """Get token statistics
+        
+        Returns:
+            Token statistics dictionary
+        """
+        if not self.auth_provider.token_manager:
+            return {"error": "Token manager not initialized"}
+        
+        return self.auth_provider.token_manager.get_token_stats()
+    
+    async def _validate_token_database_config(self, token: str, token_info) -> None:
+        """Validate database configuration for token immediately during authentication
+        
+        This ensures database connectivity issues are caught at authentication time,
+        not during query execution, providing better user experience.
+        
+        Args:
+            token: Raw authentication token
+            token_info: TokenInfo object from token validation
+            
+        Raises:
+            ValueError: If database configuration is invalid or connection fails
+        """
+        try:
+            if not self.connection_manager:
+                self.logger.warning("Connection manager not available for immediate database validation")
+                return
+            
+            # Configure and test database connection for this token
+            success, config_source = await self.connection_manager.configure_for_token(token)
+            
+            if success:
+                self.logger.info(f"Database configuration validated successfully for token {token_info.token_id} (source: {config_source})")
+            else:
+                raise ValueError("Database configuration validation failed")
+                
+        except Exception as e:
+            error_msg = f"Database configuration validation failed for token {token_info.token_id}: {str(e)}"
+            self.logger.error(error_msg)
+            raise ValueError(error_msg)
+
 
 class AuthenticationProvider:
     """Authentication provider"""
 
-    def __init__(self, config):
+    def __init__(self, config, security_manager=None):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         self.session_cache = {}
-
-    async def authenticate(self, auth_info: dict[str, Any]) -> AuthContext:
-        """Perform identity authentication"""
-        auth_type = auth_info.get("type", "token")
-
-        if auth_type == "token":
-            return await self._authenticate_token(auth_info)
-        elif auth_type == "basic":
-            return await self._authenticate_basic(auth_info)
+        self.jwt_manager = None
+        self.oauth_provider = None
+        self.token_manager = None
+        self.security_manager = security_manager
+        
+        # Initialize authentication providers based on individual switches
+        auth_methods_enabled = []
+        
+        # Initialize Token manager if enabled
+        if config.security.enable_token_auth:
+            self._initialize_token_manager()
+            auth_methods_enabled.append("Token")
+            
+        # Initialize JWT manager if enabled
+        if config.security.enable_jwt_auth:
+            self._initialize_jwt_manager()
+            auth_methods_enabled.append("JWT")
+            
+        # Initialize OAuth provider if enabled
+        if config.security.enable_oauth_auth or (hasattr(config.security, 'oauth_enabled') and config.security.oauth_enabled):
+            self._initialize_oauth_provider()
+            auth_methods_enabled.append("OAuth")
+            
+        if auth_methods_enabled:
+            self.logger.info(f"Authentication enabled with methods: {', '.join(auth_methods_enabled)}")
         else:
-            raise ValueError(f"Unsupported authentication type: {auth_type}")
+            self.logger.info("All authentication methods are disabled - anonymous access allowed")
+
+    def _initialize_jwt_manager(self):
+        """Initialize JWT manager"""
+        try:
+            from ..auth.jwt_manager import JWTManager
+            self.jwt_manager = JWTManager(self.config)
+            self.logger.info("JWT manager initialized")
+        except ImportError as e:
+            self.logger.error(f"Failed to import JWT manager: {e}")
+            raise
+        except Exception as e:
+            self.logger.error(f"Failed to initialize JWT manager: {e}")
+            raise
+
+    def _initialize_token_manager(self):
+        """Initialize Token manager"""
+        try:
+            from ..auth.token_manager import TokenManager
+            self.token_manager = TokenManager(self.config)
+            self.logger.info("Token manager initialized")
+        except ImportError as e:
+            self.logger.error(f"Failed to import Token manager: {e}")
+            raise
+        except Exception as e:
+            self.logger.error(f"Failed to initialize Token manager: {e}")
+            raise
+
+    def _initialize_oauth_provider(self):
+        """Initialize OAuth provider"""
+        try:
+            from ..auth.oauth_provider import OAuthAuthenticationProvider
+            self.oauth_provider = OAuthAuthenticationProvider(self.config)
+            self.logger.info("OAuth provider initialized")
+        except ImportError as e:
+            self.logger.error(f"Failed to import OAuth provider: {e}")
+            raise
+        except Exception as e:
+            self.logger.error(f"Failed to initialize OAuth provider: {e}")
+            raise
+
+    async def initialize(self):
+        """Initialize authentication provider asynchronously"""
+        if self.jwt_manager:
+            success = await self.jwt_manager.initialize()
+            if not success:
+                raise RuntimeError("Failed to initialize JWT manager")
+            self.logger.info("JWT authentication provider initialized successfully")
+        
+        if self.token_manager:
+            # Token manager doesn't need async initialization, just log success
+            self.logger.info("Token authentication provider initialized successfully")
+            
+        if self.oauth_provider:
+            success = await self.oauth_provider.initialize()
+            if not success:
+                raise RuntimeError("Failed to initialize OAuth provider")
+            self.logger.info("OAuth authentication provider initialized successfully")
+
+    async def shutdown(self):
+        """Shutdown authentication provider"""
+        if self.jwt_manager:
+            await self.jwt_manager.shutdown()
+            self.logger.info("JWT authentication provider shutdown completed")
+        
+        if self.token_manager:
+            # Token manager doesn't need async shutdown, just log
+            self.logger.info("Token authentication provider shutdown completed")
+            
+        if self.oauth_provider:
+            await self.oauth_provider.shutdown()
+            self.logger.info("OAuth authentication provider shutdown completed")
+
+    async def authenticate_token(self, auth_info: dict[str, Any]) -> AuthContext:
+        """Perform token authentication"""
+        if not self.config.security.enable_token_auth:
+            raise ValueError("Token authentication is not enabled")
+        return await self._authenticate_token(auth_info)
+    
+    async def authenticate_jwt(self, auth_info: dict[str, Any]) -> AuthContext:
+        """Perform JWT authentication"""
+        if not self.config.security.enable_jwt_auth:
+            raise ValueError("JWT authentication is not enabled")
+        return await self._authenticate_jwt(auth_info)
+    
+    async def authenticate_oauth(self, auth_info: dict[str, Any]) -> AuthContext:
+        """Perform OAuth authentication"""
+        if not self.config.security.enable_oauth_auth:
+            raise ValueError("OAuth authentication is not enabled")
+        return await self._authenticate_oauth(auth_info)
+
+    async def _authenticate_jwt(self, auth_info: dict[str, Any]) -> AuthContext:
+        """JWT authentication"""
+        if not self.jwt_manager:
+            raise ValueError("JWT manager not initialized")
+        
+        token = auth_info.get("token")
+        if not token:
+            # Try to extract from Authorization header
+            authorization = auth_info.get("authorization")
+            if authorization and authorization.startswith('Bearer '):
+                token = authorization[7:]
+            
+        if not token:
+            raise ValueError("Missing JWT token")
+
+        try:
+            # Use JWT middleware for authentication
+            from ..auth.auth_middleware import AuthMiddleware
+            middleware = AuthMiddleware(self.jwt_manager)
+            return await middleware.authenticate_request(auth_info)
+            
+        except Exception as e:
+            self.logger.error(f"JWT authentication failed: {e}")
+            raise ValueError(f"JWT authentication failed: {str(e)}")
+
+    async def _authenticate_oauth(self, auth_info: dict[str, Any]) -> AuthContext:
+        """OAuth authentication"""
+        if not self.oauth_provider:
+            raise ValueError("OAuth provider not initialized")
+        
+        # Handle different OAuth authentication scenarios
+        if "access_token" in auth_info:
+            # Direct OAuth access token authentication
+            return await self.oauth_provider.authenticate_with_token(auth_info["access_token"])
+        elif "code" in auth_info and "state" in auth_info:
+            # OAuth callback authentication
+            return await self.oauth_provider.handle_callback(auth_info["code"], auth_info["state"])
+        else:
+            raise ValueError("OAuth authentication requires either access_token or code+state")
 
     async def _authenticate_token(self, auth_info: dict[str, Any]) -> AuthContext:
         """Token authentication"""
+        if not self.token_manager:
+            raise ValueError("Token manager not initialized")
+            
         token = auth_info.get("token")
+        if not token:
+            # Try to extract from Authorization header
+            authorization = auth_info.get("authorization")
+            if authorization and authorization.startswith('Bearer '):
+                token = authorization[7:]
+            elif authorization and authorization.startswith('Token '):
+                token = authorization[6:]
+                
         if not token:
             raise ValueError("Missing authentication token")
 
-        # Validate token (simplified implementation, should validate JWT or query authentication service in practice)
-        user_info = await self._validate_token(token)
-
-        return AuthContext(
-            user_id=user_info["user_id"],
-            roles=user_info["roles"],
-            permissions=user_info["permissions"],
-            session_id=auth_info.get("session_id", "default"),
-            login_time=datetime.utcnow(),
-            security_level=SecurityLevel(user_info.get("security_level", "internal")),
-        )
+        try:
+            # Validate token using TokenManager
+            validation_result = await self.token_manager.validate_token(token)
+            
+            if not validation_result.is_valid:
+                raise ValueError(f"Token validation failed: {validation_result.error_message}")
+            
+            token_info = validation_result.token_info
+            
+            # Immediately validate database configuration for this token
+            if self.security_manager:
+                await self.security_manager._validate_token_database_config(token, token_info)
+            
+            return AuthContext(
+                token_id=token_info.token_id,
+                user_id=token_info.token_id,  # Use token_id as user_id for token auth
+                roles=["token_user"],  # Default role for token users
+                permissions=["read", "write"],  # Default permissions for token users
+                security_level=SecurityLevel.INTERNAL,
+                client_ip=auth_info.get("client_ip", "unknown"),
+                session_id=auth_info.get("session_id", f"session_{token_info.token_id}"),
+                login_time=datetime.utcnow(),
+                last_activity=token_info.last_used,
+                token=token  # Store raw token for token-bound database configuration
+            )
+            
+        except Exception as e:
+            self.logger.error(f"Token authentication failed: {e}")
+            raise ValueError(f"Token authentication failed: {str(e)}")
 
     async def _authenticate_basic(self, auth_info: dict[str, Any]) -> AuthContext:
         """Basic authentication (username password)"""
@@ -328,7 +733,7 @@ class AuthorizationProvider:
 
     def __init__(self, config):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         self.permission_cache = {}
         
         # Load sensitive tables configuration
@@ -471,43 +876,80 @@ class SQLSecurityValidator:
 
     def __init__(self, config):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         
         # Handle DorisConfig object or dictionary configuration
         if hasattr(config, 'get'):
             # Dictionary configuration
             self.blocked_keywords = set(config.get("blocked_keywords", []))
             self.max_query_complexity = config.get("max_query_complexity", 100)
+            self.enable_security_check = config.get("enable_security_check", True)
+        elif hasattr(config, 'security'):
+            # DorisConfig object with security attribute - unified source from config
+            self.blocked_keywords = set(config.security.blocked_keywords)
+            self.max_query_complexity = config.security.max_query_complexity
+            self.enable_security_check = getattr(config.security, 'enable_security_check', True)
         else:
-            # DorisConfig object, use default values
-            self.blocked_keywords = set(["DROP", "DELETE", "TRUNCATE", "ALTER", "CREATE", "INSERT", "UPDATE"])
+            # Fallback to default if no configuration available
+            self.blocked_keywords = set([
+                "DROP", "CREATE", "ALTER", "TRUNCATE",
+                "DELETE", "INSERT", "UPDATE", 
+                "GRANT", "REVOKE",
+                "EXEC", "EXECUTE", "SHUTDOWN", "KILL"
+            ])
             self.max_query_complexity = 100
+            self.enable_security_check = True
 
     async def validate(self, sql: str, auth_context: AuthContext) -> ValidationResult:
         """Validate SQL query security"""
+        # If security check is disabled, always return valid
+        if not self.enable_security_check:
+            self.logger.debug("SQL security check is disabled, allowing all queries")
+            return ValidationResult(is_valid=True)
+
         try:
-            # Parse SQL statement
-            parsed = sqlparse.parse(sql)[0]
+            # SECURITY FIX: Parse ALL SQL statements, not just the first one
+            # This prevents bypassing security checks by injecting additional statements
+            all_statements = sqlparse.parse(sql)
 
-            # Check blocked operations first (more specific)
-            keyword_result = await self._check_blocked_keywords(parsed)
-            if not keyword_result.is_valid:
-                return keyword_result
+            if not all_statements:
+                return ValidationResult(
+                    is_valid=False,
+                    error_message="Empty or invalid SQL statement",
+                    risk_level="medium"
+                )
 
-            # Check SQL injection risks
-            injection_result = await self._check_sql_injection(sql, parsed)
-            if not injection_result.is_valid:
-                return injection_result
+            # SECURITY FIX: Validate each statement individually
+            for idx, parsed in enumerate(all_statements):
+                # Skip empty statements (e.g., from trailing semicolons)
+                if not parsed.tokens or str(parsed).strip() == '':
+                    continue
 
-            # Check query complexity
-            complexity_result = await self._check_query_complexity(parsed)
-            if not complexity_result.is_valid:
-                return complexity_result
+                self.logger.debug(f"Validating SQL statement {idx + 1}/{len(all_statements)}: {str(parsed)[:100]}...")
 
-            # Check table access permissions
-            table_result = await self._check_table_access(parsed, auth_context)
-            if not table_result.is_valid:
-                return table_result
+                # Check blocked operations first (more specific)
+                keyword_result = await self._check_blocked_keywords(parsed)
+                if not keyword_result.is_valid:
+                    keyword_result.error_message = f"Statement {idx + 1}: {keyword_result.error_message}"
+                    return keyword_result
+
+                # Check SQL injection risks
+                injection_result = await self._check_sql_injection(sql, parsed)
+                if not injection_result.is_valid:
+                    injection_result.error_message = f"Statement {idx + 1}: {injection_result.error_message}"
+                    return injection_result
+
+                # Check query complexity
+                complexity_result = await self._check_query_complexity(parsed)
+                if not complexity_result.is_valid:
+                    complexity_result.error_message = f"Statement {idx + 1}: {complexity_result.error_message}"
+                    return complexity_result
+
+                # Check table access permissions
+                table_result = await self._check_table_access(parsed, auth_context)
+                if not table_result.is_valid:
+                    table_result.error_message = f"Statement {idx + 1}: {table_result.error_message}"
+                    return table_result
 
             return ValidationResult(is_valid=True)
 
@@ -522,28 +964,69 @@ class SQLSecurityValidator:
     async def _check_sql_injection(
         self, sql: str, parsed: Statement
     ) -> ValidationResult:
-        """Check SQL injection risks"""
-        # Check common SQL injection patterns
+        """Check SQL injection risks with improved pattern detection
+
+        FIX for Issue #62 Bug 2: Improved patterns to reduce false positives
+        Now better distinguishes between legitimate SQL (like BETWEEN...AND) and injection attempts
+        """
+        # Improved injection patterns that are more specific and less prone to false positives
         injection_patterns = [
-            r"(\s|^)(union|select|insert|update|delete|drop|create|alter)\s+.*\s+(union|select|insert|update|delete|drop|create|alter)",
-            r"(\s|^)(or|and)\s+\d+\s*=\s*\d+",
-            r"(\s|^)(or|and)\s+['\"].*['\"]",
-            r";\s*(drop|delete|truncate|alter|create)",
-            r"(exec|execute|sp_|xp_)",
-            r"(script|javascript|vbscript)",
-            r"(char|ascii|substring|concat)\s*\(",
+            # Stacked queries with dangerous operations (true injection risk)
+            r";\s*(DROP|DELETE|TRUNCATE|ALTER|CREATE|INSERT|UPDATE)\s+",
+
+            # UNION-based injection (but allow legitimate UNION queries)
+            # Only flag if UNION is followed by suspicious patterns like SELECT with WHERE 1=1
+            r"UNION\s+(ALL\s+)?SELECT\s+.*\s+(WHERE|AND|OR)\s+\d+\s*=\s*\d+",
+
+            # Boolean-based blind injection with comments (true injection pattern)
+            r"(WHERE|AND|OR)\s+\d+\s*=\s*\d+\s*(--|#|/\*)",
+
+            # Quote-based injection attempts (but not in legitimate strings)
+            r"(WHERE|AND|OR)\s+(['\"])[^\2]*\2\s*=\s*\2[^\2]*\2",
+
+            # Time-based blind injection
+            r"(SLEEP|WAITFOR|BENCHMARK)\s*\(",
+
+            # System stored procedure injection
+            r"(EXEC|EXECUTE|SP_|XP_)\s*\(",
+
+            # Script injection attempts
+            r"<\s*(SCRIPT|JAVASCRIPT|VBSCRIPT)",
         ]
 
-        sql_lower = sql.lower()
+        # FIX: Don't flag legitimate SQL functions and keywords
+        # These patterns are too broad and cause false positives:
+        # - REMOVED: r"(char|ascii|substring|concat)\s*\(" - These are legitimate SQL functions
+        # - REMOVED: r"(\s|^)(or|and)\s+\d+\s*=\s*\d+" - This flags BETWEEN...AND constructs
+        # - REMOVED: r"(\s|^)(or|and)\s+['\"].*['\"]" - This is too broad
+
+        sql_upper = sql.upper()
+
+        # Special case: Allow BETWEEN...AND which is legitimate SQL
+        # This prevents false positives like "WHERE dt BETWEEN '2025-01-01' AND '2025-01-31'"
+        if "BETWEEN" in sql_upper and "AND" in sql_upper:
+            # This is likely a BETWEEN clause, not injection
+            # Check if AND appears in a BETWEEN context
+            between_pattern = r"BETWEEN\s+[^\s]+\s+AND\s+[^\s]+"
+            if re.search(between_pattern, sql_upper, re.IGNORECASE):
+                # Remove BETWEEN clauses before checking other patterns
+                sql_cleaned = re.sub(between_pattern, "BETWEEN_CLAUSE", sql_upper, flags=re.IGNORECASE)
+                sql_to_check = sql_cleaned
+            else:
+                sql_to_check = sql_upper
+        else:
+            sql_to_check = sql_upper
+
         for pattern in injection_patterns:
-            if re.search(pattern, sql_lower, re.IGNORECASE):
+            if re.search(pattern, sql_to_check, re.IGNORECASE):
+                self.logger.warning(f"Potential SQL injection pattern detected: {pattern}")
                 return ValidationResult(
                     is_valid=False,
                     error_message="Potential SQL injection risk detected",
                     risk_level="high",
                 )
 
-        # Check suspicious quotes and comments
+        # Check suspicious quotes and comments (with improved detection)
         if self._has_suspicious_quotes_or_comments(sql):
             return ValidationResult(
                 is_valid=False,
@@ -554,19 +1037,67 @@ class SQLSecurityValidator:
         return ValidationResult(is_valid=True)
 
     def _has_suspicious_quotes_or_comments(self, sql: str) -> bool:
-        """Check suspicious quote and comment patterns"""
-        # Check unmatched quotes
-        single_quotes = sql.count("'")
-        double_quotes = sql.count('"')
+        """Check suspicious quote and comment patterns with improved detection
 
-        if single_quotes % 2 != 0 or double_quotes % 2 != 0:
-            return True
+        FIX for Issue #62 Bug 2: Improved detection to reduce false positives
+        Now distinguishes between legitimate comments/strings and injection attempts
+        """
+        try:
+            # Use sqlparse to parse the SQL and distinguish between code and comments/strings
+            import sqlparse
+            from sqlparse.tokens import Comment, String
 
-        # Check SQL comments
-        if "--" in sql or "/*" in sql:
-            return True
+            # Parse the SQL
+            parsed = sqlparse.parse(sql)
+            if not parsed:
+                # If parsing fails, be conservative
+                return True
 
-        return False
+            statement = parsed[0]
+
+            # Check for unmatched quotes ONLY in non-string tokens
+            # This prevents false positives from legitimate string content
+            non_string_content = []
+            has_string_tokens = False
+
+            for token in statement.flatten():
+                if token.ttype in (String.Single, String.Double):
+                    has_string_tokens = True
+                    # Skip string content - quotes inside strings are legitimate
+                    continue
+                elif token.ttype in (Comment.Single, Comment.Multi):
+                    # Comments are generally OK, but check for suspicious injection patterns
+                    comment_value = str(token).lower()
+                    # Check if comment contains dangerous SQL keywords
+                    dangerous_in_comments = ['drop', 'delete', 'insert', 'update', 'union', 'exec', 'execute']
+                    if any(keyword in comment_value for keyword in dangerous_in_comments):
+                        self.logger.warning(f"Suspicious SQL keyword in comment: {token}")
+                        return True
+                    # Normal comments are OK
+                    continue
+                else:
+                    # Accumulate non-string, non-comment content
+                    non_string_content.append(str(token))
+
+            # Check for unmatched quotes in non-string content
+            non_string_text = ''.join(non_string_content)
+            single_quotes = non_string_text.count("'")
+            double_quotes = non_string_text.count('"')
+
+            # Only flag if there are unmatched quotes in actual SQL code (not in strings)
+            if single_quotes % 2 != 0 or double_quotes % 2 != 0:
+                return True
+
+            # FIX: Don't flag legitimate SQL comments
+            # Comments are OK as long as they don't contain dangerous patterns (already checked above)
+
+            return False
+
+        except Exception as e:
+            self.logger.debug(f"SQL parsing error in quote/comment check: {e}")
+            # On parsing error, fall back to conservative check
+            # But be more lenient than before
+            return False  # Don't flag on parse errors to reduce false positives
 
     async def _check_blocked_keywords(self, parsed: Statement) -> ValidationResult:
         """Check blocked keywords"""
@@ -628,6 +1159,10 @@ class SQLSecurityValidator:
         self, parsed: Statement, auth_context: AuthContext
     ) -> ValidationResult:
         """Check table access permissions"""
+        # If no auth_context, skip table access checks (rely on other security checks)
+        if auth_context is None:
+            return ValidationResult(is_valid=True)
+        
         # Extract table names from query
         tables = self._extract_table_names(parsed)
 
@@ -676,7 +1211,7 @@ class DataMaskingProcessor:
 
     def __init__(self, config):
         self.config = config
-        self.logger = logging.getLogger(__name__)
+        self.logger = get_logger(__name__)
         self.masking_algorithms = self._init_masking_algorithms()
         self.masking_rules = self._load_masking_rules()
     

doris_mcp_server/utils/security_analytics_tools.py

@@ -0,0 +1,788 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+Security Analytics Tools Module
+Provides data access analysis, user behavior monitoring, and security insights
+"""
+
+import time
+from datetime import datetime, timedelta
+from typing import Any, Dict, List, Optional
+from collections import Counter, defaultdict
+
+from .db import DorisConnectionManager
+from .logger import get_logger
+from .sql_security_utils import get_auth_context
+
+logger = get_logger(__name__)
+
+
+class SecurityAnalyticsTools:
+    """Security analytics tools for access pattern analysis and user monitoring"""
+    
+    def __init__(self, connection_manager: DorisConnectionManager):
+        self.connection_manager = connection_manager
+        logger.info("SecurityAnalyticsTools initialized")
+    
+    async def analyze_data_access_patterns(
+        self, 
+        days: int = 7,
+        include_system_users: bool = False,
+        min_query_threshold: int = 5
+    ) -> Dict[str, Any]:
+        """
+        Analyze data access patterns for users and roles
+        
+        Args:
+            days: Number of days to analyze
+            include_system_users: Whether to include system/service users
+            min_query_threshold: Minimum queries for a user to be included in analysis
+        
+        Returns:
+            Comprehensive access pattern analysis
+        """
+        try:
+            start_time = time.time()
+            
+            # 🚀 PROGRESS: Initialize security analysis
+            logger.info("=" * 70)
+            logger.info(f"🔒 Starting Data Access Pattern Analysis")
+            logger.info(f"📅 Analysis period: {days} days")
+            logger.info(f"👥 Include system users: {include_system_users}")
+            logger.info(f"🎯 Min query threshold: {min_query_threshold}")
+            logger.info("=" * 70)
+            
+            connection = await self.connection_manager.get_connection("query")
+            
+            # Define analysis period
+            end_date = datetime.now()
+            start_date = end_date - timedelta(days=days)
+            
+            logger.info(f"📊 Period: {start_date.strftime('%Y-%m-%d')} to {end_date.strftime('%Y-%m-%d')}")
+            
+            # 🚀 PROGRESS: Step 1 - Get audit log data
+            logger.info("📋 Step 1/5: Retrieving audit log data...")
+            audit_start = time.time()
+            audit_data = await self._get_audit_log_data(connection, start_date, end_date, include_system_users)
+            audit_time = time.time() - audit_start
+            
+            if not audit_data:
+                logger.warning("⚠️ No audit data available for the specified period")
+                return {
+                    "error": "No audit data available for the specified period",
+                    "analysis_period": {
+                        "start_date": start_date.isoformat(),
+                        "end_date": end_date.isoformat(),
+                        "days": days
+                    }
+                }
+            
+            logger.info(f"✅ Retrieved {len(audit_data)} audit records in {audit_time:.2f}s")
+            
+            # 🚀 PROGRESS: Step 2 - Analyze user access patterns
+            logger.info("👤 Step 2/5: Analyzing user access patterns...")
+            user_start = time.time()
+            user_access_analysis = await self._analyze_user_access_patterns(
+                audit_data, min_query_threshold
+            )
+            user_time = time.time() - user_start
+            logger.info(f"✅ Analyzed {len(user_access_analysis)} users in {user_time:.2f}s")
+            
+            # 🚀 PROGRESS: Step 3 - Analyze role-based access
+            logger.info("🎭 Step 3/5: Analyzing role-based access patterns...")
+            role_start = time.time()
+            role_access_analysis = await self._analyze_role_access_patterns(
+                connection, user_access_analysis
+            )
+            role_time = time.time() - role_start
+            logger.info(f"✅ Role analysis completed in {role_time:.2f}s")
+            
+            # 🚀 PROGRESS: Step 4 - Detect security anomalies
+            logger.info("🚨 Step 4/5: Detecting security anomalies...")
+            anomaly_start = time.time()
+            security_alerts = await self._detect_security_anomalies(
+                audit_data, user_access_analysis
+            )
+            anomaly_time = time.time() - anomaly_start
+            logger.info(f"✅ Found {len(security_alerts)} security alerts in {anomaly_time:.2f}s")
+            
+            # Log alert summary
+            if security_alerts:
+                high_alerts = sum(1 for alert in security_alerts if alert.get("severity") == "high")
+                medium_alerts = sum(1 for alert in security_alerts if alert.get("severity") == "medium")
+                logger.info(f"🚨 Alert breakdown: {high_alerts} high, {medium_alerts} medium")
+            
+            # 🚀 PROGRESS: Step 5 - Generate access insights
+            logger.info("💡 Step 5/5: Generating access insights...")
+            insights_start = time.time()
+            access_insights = await self._generate_access_insights(
+                user_access_analysis, role_access_analysis
+            )
+            insights_time = time.time() - insights_start
+            logger.info(f"✅ Access insights generated in {insights_time:.2f}s")
+            
+            execution_time = time.time() - start_time
+            
+            return {
+                "analysis_period": {
+                    "start_date": start_date.isoformat(),
+                    "end_date": end_date.isoformat(),
+                    "days": days
+                },
+                "analysis_timestamp": datetime.now().isoformat(),
+                "execution_time_seconds": round(execution_time, 3),
+                "user_access_summary": self._generate_user_access_summary(user_access_analysis),
+                "user_access_details": user_access_analysis,
+                "role_analysis": role_access_analysis,
+                "security_alerts": security_alerts,
+                "access_insights": access_insights,
+                "recommendations": self._generate_security_recommendations(security_alerts, access_insights)
+            }
+            
+        except Exception as e:
+            logger.error(f"Data access pattern analysis failed: {str(e)}")
+            return {
+                "error": str(e),
+                "analysis_timestamp": datetime.now().isoformat()
+            }
+    
+    # ==================== Private Helper Methods ====================
+    
+    async def _get_audit_log_data(self, connection, start_date: datetime, end_date: datetime, include_system_users: bool) -> List[Dict]:
+        """Retrieve audit log data for the specified period"""
+        try:
+            # System users filter
+            system_user_filter = ""
+            if not include_system_users:
+                system_users = ['root', 'admin', 'system', 'doris', 'information_schema']
+                user_list = ','.join([f'"{user}"' for user in system_users])
+                system_user_filter = f"AND `user` NOT IN ({user_list})"
+            
+            audit_sql = f"""
+            SELECT 
+                `user` as user_name,
+                `client_ip` as host,
+                `time` as query_time,
+                `stmt` as sql_statement,
+                `state` as query_status,
+                `scan_bytes` as scan_bytes,
+                `scan_rows` as scan_rows,
+                `return_rows` as return_rows,
+                `query_time` as execution_time_ms
+            FROM internal.__internal_schema.audit_log 
+            WHERE `time` >= '{start_date.strftime('%Y-%m-%d %H:%M:%S')}'
+                AND `time` <= '{end_date.strftime('%Y-%m-%d %H:%M:%S')}'
+                AND `stmt` IS NOT NULL
+                AND `stmt` != ''
+                {system_user_filter}
+            ORDER BY `time` DESC
+            LIMIT 10000
+            """
+            
+            # SECURITY FIX: Pass auth_context to execute
+            auth_context = get_auth_context()
+            result = await connection.execute(audit_sql, auth_context=auth_context)
+            return result.data if result.data else []
+            
+        except Exception as e:
+            logger.warning(f"Failed to get audit log data: {str(e)}")
+            # Try alternative method without detailed metrics
+            try:
+                simple_audit_sql = f"""
+                SELECT 
+                    `user` as user_name,
+                    `client_ip` as host,
+                    `time` as query_time,
+                    `stmt` as sql_statement,
+                    `state` as query_status
+                FROM internal.__internal_schema.audit_log 
+                WHERE `time` >= '{start_date.strftime('%Y-%m-%d %H:%M:%S')}'
+                    AND `time` <= '{end_date.strftime('%Y-%m-%d %H:%M:%S')}'
+                    AND `stmt` IS NOT NULL
+                    {system_user_filter}
+                ORDER BY `time` DESC
+                LIMIT 10000
+                """
+                
+                auth_context = get_auth_context()
+                result = await connection.execute(simple_audit_sql, auth_context=auth_context)
+                return result.data if result.data else []
+                
+            except Exception as e2:
+                logger.error(f"Failed to get simplified audit log data: {str(e2)}")
+                return []
+    
+    async def _analyze_user_access_patterns(self, audit_data: List[Dict], min_query_threshold: int) -> List[Dict]:
+        """Analyze access patterns for individual users"""
+        user_stats = defaultdict(lambda: {
+            "total_queries": 0,
+            "unique_tables_accessed": set(),
+            "hosts": set(),
+            "query_types": Counter(),
+            "query_times": [],
+            "failed_queries": 0,
+            "data_volume_read_bytes": 0,
+            "data_volume_read_rows": 0,
+            "hourly_pattern": [0] * 24,
+            "daily_pattern": [0] * 7,
+            "query_statements": []
+        })
+        
+        # Process audit data
+        for entry in audit_data:
+            user_name = entry.get("user_name", "unknown")
+            query_time = entry.get("query_time")
+            sql_statement = entry.get("sql_statement", "")
+            query_status = entry.get("query_status", "")
+            
+            stats = user_stats[user_name]
+            stats["total_queries"] += 1
+            
+            # Extract table names from SQL
+            tables = self._extract_table_names_from_sql(sql_statement)
+            stats["unique_tables_accessed"].update(tables)
+            
+            # Host tracking
+            if entry.get("host"):
+                stats["hosts"].add(entry["host"])
+            
+            # Query type analysis
+            query_type = self._classify_query_type(sql_statement)
+            stats["query_types"][query_type] += 1
+            
+            # Query time patterns
+            if query_time:
+                try:
+                    if isinstance(query_time, str):
+                        query_dt = datetime.fromisoformat(query_time.replace('Z', '+00:00'))
+                    else:
+                        query_dt = query_time
+                    
+                    stats["query_times"].append(query_dt)
+                    stats["hourly_pattern"][query_dt.hour] += 1
+                    stats["daily_pattern"][query_dt.weekday()] += 1
+                except Exception:
+                    pass
+            
+            # Error tracking
+            if query_status and "error" in query_status.lower():
+                stats["failed_queries"] += 1
+            
+            # Data volume tracking
+            if entry.get("scan_bytes"):
+                try:
+                    stats["data_volume_read_bytes"] += int(entry["scan_bytes"])
+                except (ValueError, TypeError):
+                    pass
+            
+            if entry.get("scan_rows"):
+                try:
+                    stats["data_volume_read_rows"] += int(entry["scan_rows"])
+                except (ValueError, TypeError):
+                    pass
+            
+            # Store sample queries
+            if len(stats["query_statements"]) < 10:
+                stats["query_statements"].append({
+                    "sql": sql_statement[:200] + "..." if len(sql_statement) > 200 else sql_statement,
+                    "timestamp": str(query_time),
+                    "type": query_type
+                })
+        
+        # Convert to analysis results
+        user_analysis = []
+        for user_name, stats in user_stats.items():
+            if stats["total_queries"] >= min_query_threshold:
+                # Calculate patterns and insights
+                access_pattern = self._classify_access_pattern(stats["hourly_pattern"])
+                table_access_frequency = dict(Counter(
+                    table for entry in audit_data 
+                    if entry.get("user_name") == user_name
+                    for table in self._extract_table_names_from_sql(entry.get("sql_statement", ""))
+                ).most_common(10))
+                
+                user_analysis.append({
+                    "user_name": user_name,
+                    "access_stats": {
+                        "total_queries": stats["total_queries"],
+                        "unique_tables_accessed": len(stats["unique_tables_accessed"]),
+                        "unique_hosts": len(stats["hosts"]),
+                        "data_volume_read_gb": round(stats["data_volume_read_bytes"] / (1024**3), 3),
+                        "data_volume_read_rows": stats["data_volume_read_rows"],
+                        "failed_queries": stats["failed_queries"],
+                        "success_rate": round((stats["total_queries"] - stats["failed_queries"]) / stats["total_queries"], 3) if stats["total_queries"] > 0 else 0,
+                        "peak_access_hour": stats["hourly_pattern"].index(max(stats["hourly_pattern"])) if max(stats["hourly_pattern"]) > 0 else None,
+                        "access_pattern": access_pattern
+                    },
+                    "query_type_distribution": dict(stats["query_types"]),
+                    "table_access_frequency": table_access_frequency,
+                    "hosts_used": list(stats["hosts"]),
+                    "sample_queries": stats["query_statements"],
+                    "temporal_patterns": {
+                        "hourly_distribution": stats["hourly_pattern"],
+                        "daily_distribution": stats["daily_pattern"]
+                    }
+                })
+        
+        return sorted(user_analysis, key=lambda x: x["access_stats"]["total_queries"], reverse=True)
+    
+    def _extract_table_names_from_sql(self, sql: str) -> List[str]:
+        """Extract table names from SQL statement (simplified implementation)"""
+        if not sql:
+            return []
+        
+        import re
+        
+        # Simple regex patterns to match table names
+        patterns = [
+            r'\bFROM\s+([a-zA-Z_][a-zA-Z0-9_]*(?:\.[a-zA-Z_][a-zA-Z0-9_]*)*)',
+            r'\bJOIN\s+([a-zA-Z_][a-zA-Z0-9_]*(?:\.[a-zA-Z_][a-zA-Z0-9_]*)*)',
+            r'\bINTO\s+([a-zA-Z_][a-zA-Z0-9_]*(?:\.[a-zA-Z_][a-zA-Z0-9_]*)*)',
+            r'\bUPDATE\s+([a-zA-Z_][a-zA-Z0-9_]*(?:\.[a-zA-Z_][a-zA-Z0-9_]*)*)',
+            r'\bDELETE\s+FROM\s+([a-zA-Z_][a-zA-Z0-9_]*(?:\.[a-zA-Z_][a-zA-Z0-9_]*)*)'
+        ]
+        
+        tables = []
+        for pattern in patterns:
+            matches = re.findall(pattern, sql, re.IGNORECASE)
+            tables.extend(matches)
+        
+        # Clean up table names (remove quotes, aliases, etc.)
+        cleaned_tables = []
+        for table in tables:
+            # Remove backticks, quotes, and get just the table name
+            clean_table = table.strip('`"\'').split(' ')[0]
+            if clean_table and not clean_table.upper() in ['SELECT', 'WHERE', 'AND', 'OR']:
+                cleaned_tables.append(clean_table)
+        
+        return list(set(cleaned_tables))
+    
+    def _classify_query_type(self, sql: str) -> str:
+        """Classify SQL query type"""
+        if not sql:
+            return "unknown"
+        
+        sql_upper = sql.upper().strip()
+        
+        if sql_upper.startswith('SELECT'):
+            return "SELECT"
+        elif sql_upper.startswith('INSERT'):
+            return "INSERT"
+        elif sql_upper.startswith('UPDATE'):
+            return "UPDATE"
+        elif sql_upper.startswith('DELETE'):
+            return "DELETE"
+        elif sql_upper.startswith('CREATE'):
+            return "CREATE"
+        elif sql_upper.startswith('ALTER'):
+            return "ALTER"
+        elif sql_upper.startswith('DROP'):
+            return "DROP"
+        elif sql_upper.startswith('SHOW'):
+            return "SHOW"
+        elif sql_upper.startswith('DESCRIBE') or sql_upper.startswith('DESC'):
+            return "DESCRIBE"
+        else:
+            return "OTHER"
+    
+    def _classify_access_pattern(self, hourly_pattern: List[int]) -> str:
+        """Classify user access pattern based on hourly distribution"""
+        if not hourly_pattern or max(hourly_pattern) == 0:
+            return "no_pattern"
+        
+        # Find peak hours
+        max_queries = max(hourly_pattern)
+        peak_hours = [i for i, count in enumerate(hourly_pattern) if count == max_queries]
+        
+        # Business hours: 9-17
+        business_hours = set(range(9, 18))
+        peak_in_business_hours = any(hour in business_hours for hour in peak_hours)
+        
+        # Night hours: 22-6
+        night_hours = set(list(range(22, 24)) + list(range(0, 7)))
+        peak_in_night_hours = any(hour in night_hours for hour in peak_hours)
+        
+        if peak_in_business_hours and not peak_in_night_hours:
+            return "regular_business_hours"
+        elif peak_in_night_hours:
+            return "night_shift_or_batch"
+        elif len(peak_hours) > 6:  # Distributed throughout day
+            return "distributed_access"
+        else:
+            return "irregular_pattern"
+    
+    async def _analyze_role_access_patterns(self, connection, user_access_analysis: List[Dict]) -> Dict[str, Any]:
+        """Analyze access patterns by role"""
+        try:
+            # Get user roles information
+            user_roles = await self._get_user_roles(connection)
+            
+            # Group users by roles
+            role_stats = defaultdict(lambda: {
+                "user_count": 0,
+                "total_queries": 0,
+                "unique_tables": set(),
+                "query_types": Counter(),
+                "avg_queries_per_user": 0,
+                "users": []
+            })
+            
+            # Process user access data
+            for user_data in user_access_analysis:
+                user_name = user_data["user_name"]
+                user_stats = user_data["access_stats"]
+                query_types = user_data["query_type_distribution"]
+                
+                # Get user roles (default to 'unknown' if not found)
+                roles = user_roles.get(user_name, ["unknown"])
+                
+                for role in roles:
+                    stats = role_stats[role]
+                    stats["user_count"] += 1
+                    stats["total_queries"] += user_stats["total_queries"]
+                    stats["users"].append(user_name)
+                    
+                    # Aggregate query types
+                    for query_type, count in query_types.items():
+                        stats["query_types"][query_type] += count
+            
+            # Calculate role analysis
+            role_analysis = {}
+            for role, stats in role_stats.items():
+                if stats["user_count"] > 0:
+                    avg_queries = stats["total_queries"] / stats["user_count"]
+                    
+                    # Calculate privilege usage (simplified)
+                    total_role_queries = sum(stats["query_types"].values())
+                    privilege_usage = {}
+                    if total_role_queries > 0:
+                        privilege_usage = {
+                            query_type: round(count / total_role_queries, 3)
+                            for query_type, count in stats["query_types"].items()
+                        }
+                    
+                    role_analysis[role] = {
+                        "user_count": stats["user_count"],
+                        "users": stats["users"],
+                        "total_queries": stats["total_queries"],
+                        "avg_queries_per_user": round(avg_queries, 1),
+                        "query_type_distribution": dict(stats["query_types"]),
+                        "privilege_usage": privilege_usage,
+                        "activity_level": self._classify_role_activity_level(avg_queries)
+                    }
+            
+            return role_analysis
+            
+        except Exception as e:
+            logger.warning(f"Failed to analyze role access patterns: {str(e)}")
+            return {}
+    
+    async def _get_user_roles(self, connection) -> Dict[str, List[str]]:
+        """Get user roles mapping"""
+        try:
+            # Try to get user role information
+            roles_sql = """
+            SELECT 
+                User as user_name,
+                COALESCE(Default_role, 'default') as role_name
+            FROM mysql.user
+            """
+            
+            auth_context = get_auth_context()
+            result = await connection.execute(roles_sql, auth_context=auth_context)
+            
+            user_roles = defaultdict(list)
+            if result.data:
+                for row in result.data:
+                    user_name = row.get("user_name", "")
+                    role_name = row.get("role_name", "default")
+                    if user_name:
+                        user_roles[user_name].append(role_name)
+            
+            return dict(user_roles)
+            
+        except Exception as e:
+            logger.warning(f"Failed to get user roles: {str(e)}")
+            return {}
+    
+    def _classify_role_activity_level(self, avg_queries: float) -> str:
+        """Classify role activity level based on average queries"""
+        if avg_queries > 100:
+            return "high"
+        elif avg_queries > 20:
+            return "medium"
+        elif avg_queries > 5:
+            return "low"
+        else:
+            return "minimal"
+    
+    async def _detect_security_anomalies(self, audit_data: List[Dict], user_access_analysis: List[Dict]) -> List[Dict]:
+        """Detect potential security anomalies"""
+        alerts = []
+        
+        # 1. Detect unusual access times
+        for user_data in user_access_analysis:
+            user_name = user_data["user_name"]
+            hourly_pattern = user_data["temporal_patterns"]["hourly_distribution"]
+            
+            # Check for significant night-time activity
+            night_queries = sum(hourly_pattern[22:24]) + sum(hourly_pattern[0:6])
+            total_queries = sum(hourly_pattern)
+            
+            if total_queries > 0 and night_queries / total_queries > 0.3:  # >30% night activity
+                alerts.append({
+                    "alert_type": "unusual_access_time",
+                    "severity": "medium",
+                    "user": user_name,
+                    "description": f"User {user_name} has {night_queries/total_queries:.1%} of queries during night hours",
+                    "night_query_percentage": round(night_queries/total_queries, 3),
+                    "timestamp": datetime.now().isoformat()
+                })
+        
+        # 2. Detect users with high failure rates
+        for user_data in user_access_analysis:
+            user_name = user_data["user_name"]
+            success_rate = user_data["access_stats"]["success_rate"]
+            total_queries = user_data["access_stats"]["total_queries"]
+            
+            if total_queries > 10 and success_rate < 0.8:  # <80% success rate
+                alerts.append({
+                    "alert_type": "high_failure_rate",
+                    "severity": "medium",
+                    "user": user_name,
+                    "description": f"User {user_name} has low query success rate ({success_rate:.1%})",
+                    "success_rate": success_rate,
+                    "total_queries": total_queries,
+                    "timestamp": datetime.now().isoformat()
+                })
+        
+        # 3. Detect unusual data volume access
+        data_volumes = [user["access_stats"]["data_volume_read_gb"] for user in user_access_analysis]
+        if data_volumes:
+            avg_volume = sum(data_volumes) / len(data_volumes)
+            std_dev = (sum((x - avg_volume) ** 2 for x in data_volumes) / len(data_volumes)) ** 0.5
+            threshold = avg_volume + 2 * std_dev  # 2 standard deviations above mean
+            
+            for user_data in user_access_analysis:
+                user_name = user_data["user_name"]
+                volume = user_data["access_stats"]["data_volume_read_gb"]
+                
+                if volume > threshold and volume > 1.0:  # >1GB and above threshold
+                    alerts.append({
+                        "alert_type": "unusual_data_volume",
+                        "severity": "high" if volume > threshold * 2 else "medium",
+                        "user": user_name,
+                        "description": f"User {user_name} read {volume:.2f}GB (threshold: {threshold:.2f}GB)",
+                        "data_volume_gb": volume,
+                        "threshold_gb": round(threshold, 2),
+                        "timestamp": datetime.now().isoformat()
+                    })
+        
+        # 4. Detect users accessing many different tables
+        for user_data in user_access_analysis:
+            user_name = user_data["user_name"]
+            unique_tables = user_data["access_stats"]["unique_tables_accessed"]
+            total_queries = user_data["access_stats"]["total_queries"]
+            
+            # High table diversity might indicate privilege escalation or data mining
+            if unique_tables > 20 and total_queries > 50:
+                alerts.append({
+                    "alert_type": "broad_table_access",
+                    "severity": "medium",
+                    "user": user_name,
+                    "description": f"User {user_name} accessed {unique_tables} different tables",
+                    "unique_tables_count": unique_tables,
+                    "total_queries": total_queries,
+                    "timestamp": datetime.now().isoformat()
+                })
+        
+        return sorted(alerts, key=lambda x: {"high": 3, "medium": 2, "low": 1}.get(x["severity"], 0), reverse=True)
+    
+    async def _generate_access_insights(self, user_access_analysis: List[Dict], role_analysis: Dict[str, Any]) -> Dict[str, Any]:
+        """Generate access insights and patterns"""
+        insights = {
+            "user_behavior_patterns": {},
+            "role_effectiveness": {},
+            "security_posture": {}
+        }
+        
+        # User behavior patterns
+        if user_access_analysis:
+            total_users = len(user_access_analysis)
+            active_users = len([u for u in user_access_analysis if u["access_stats"]["total_queries"] > 10])
+            power_users = len([u for u in user_access_analysis if u["access_stats"]["total_queries"] > 100])
+            
+            # Access pattern distribution
+            pattern_distribution = Counter(
+                user["access_stats"]["access_pattern"] for user in user_access_analysis
+            )
+            
+            insights["user_behavior_patterns"] = {
+                "total_users_analyzed": total_users,
+                "active_users": active_users,
+                "power_users": power_users,
+                "access_pattern_distribution": dict(pattern_distribution),
+                "avg_queries_per_user": round(
+                    sum(u["access_stats"]["total_queries"] for u in user_access_analysis) / total_users, 1
+                ) if total_users > 0 else 0
+            }
+        
+        # Role effectiveness
+        if role_analysis:
+            most_active_role = max(role_analysis.items(), key=lambda x: x[1]["total_queries"])
+            least_active_role = min(role_analysis.items(), key=lambda x: x[1]["total_queries"])
+            
+            insights["role_effectiveness"] = {
+                "total_roles": len(role_analysis),
+                "most_active_role": {
+                    "role": most_active_role[0],
+                    "total_queries": most_active_role[1]["total_queries"],
+                    "user_count": most_active_role[1]["user_count"]
+                },
+                "least_active_role": {
+                    "role": least_active_role[0],
+                    "total_queries": least_active_role[1]["total_queries"],
+                    "user_count": least_active_role[1]["user_count"]
+                },
+                "avg_users_per_role": round(
+                    sum(role_info["user_count"] for role_info in role_analysis.values()) / len(role_analysis), 1
+                )
+            }
+        
+        # Security posture assessment
+        if user_access_analysis:
+            users_with_failures = len([u for u in user_access_analysis if u["access_stats"]["failed_queries"] > 0])
+            users_night_access = len([
+                u for u in user_access_analysis 
+                if any(u["temporal_patterns"]["hourly_distribution"][hour] > 0 for hour in list(range(22, 24)) + list(range(0, 6)))
+            ])
+            
+            insights["security_posture"] = {
+                "users_with_query_failures": users_with_failures,
+                "users_with_night_access": users_night_access,
+                "security_score": self._calculate_security_score(user_access_analysis),
+                "risk_level": self._assess_overall_risk_level(user_access_analysis)
+            }
+        
+        return insights
+    
+    def _calculate_security_score(self, user_access_analysis: List[Dict]) -> float:
+        """Calculate overall security score (0-1, higher is better)"""
+        if not user_access_analysis:
+            return 0.0
+        
+        total_users = len(user_access_analysis)
+        
+        # Factors that contribute to security score
+        users_with_high_success_rate = len([u for u in user_access_analysis if u["access_stats"]["success_rate"] > 0.9])
+        users_with_normal_patterns = len([u for u in user_access_analysis if u["access_stats"]["access_pattern"] == "regular_business_hours"])
+        
+        success_rate_score = users_with_high_success_rate / total_users
+        pattern_score = users_with_normal_patterns / total_users
+        
+        # Combined score
+        overall_score = (success_rate_score * 0.6 + pattern_score * 0.4)
+        return round(overall_score, 3)
+    
+    def _assess_overall_risk_level(self, user_access_analysis: List[Dict]) -> str:
+        """Assess overall security risk level"""
+        security_score = self._calculate_security_score(user_access_analysis)
+        
+        if security_score > 0.8:
+            return "low"
+        elif security_score > 0.6:
+            return "medium"
+        else:
+            return "high"
+    
+    def _generate_user_access_summary(self, user_access_analysis: List[Dict]) -> Dict[str, Any]:
+        """Generate summary statistics for user access"""
+        if not user_access_analysis:
+            return {
+                "total_users": 0,
+                "active_users": 0,
+                "high_activity_users": 0,
+                "dormant_users": 0
+            }
+        
+        total_users = len(user_access_analysis)
+        active_users = len([u for u in user_access_analysis if u["access_stats"]["total_queries"] > 10])
+        high_activity_users = len([u for u in user_access_analysis if u["access_stats"]["total_queries"] > 100])
+        dormant_users = total_users - active_users
+        
+        return {
+            "total_users": total_users,
+            "active_users": active_users,
+            "high_activity_users": high_activity_users,
+            "dormant_users": dormant_users,
+            "activity_distribution": {
+                "high": high_activity_users,
+                "medium": active_users - high_activity_users,
+                "low": dormant_users
+            }
+        }
+    
+    def _generate_security_recommendations(self, security_alerts: List[Dict], access_insights: Dict[str, Any]) -> List[Dict]:
+        """Generate security recommendations based on analysis"""
+        recommendations = []
+        
+        # Recommendations based on alerts
+        if security_alerts:
+            high_severity_alerts = [alert for alert in security_alerts if alert["severity"] == "high"]
+            if high_severity_alerts:
+                recommendations.append({
+                    "type": "urgent_security_review",
+                    "priority": "high",
+                    "description": f"Found {len(high_severity_alerts)} high-severity security alerts",
+                    "action": "Immediate review of flagged users and access patterns required",
+                    "affected_users": list(set(alert["user"] for alert in high_severity_alerts if "user" in alert))
+                })
+            
+            # Night access recommendations
+            night_access_alerts = [alert for alert in security_alerts if alert["alert_type"] == "unusual_access_time"]
+            if night_access_alerts:
+                recommendations.append({
+                    "type": "access_time_policy",
+                    "priority": "medium",
+                    "description": f"{len(night_access_alerts)} users have significant night-time access",
+                    "action": "Review access time policies and consider time-based restrictions",
+                    "affected_users": [alert["user"] for alert in night_access_alerts]
+                })
+        
+        # Recommendations based on insights
+        security_posture = access_insights.get("security_posture", {})
+        risk_level = security_posture.get("risk_level", "unknown")
+        
+        if risk_level == "high":
+            recommendations.append({
+                "type": "overall_security_improvement",
+                "priority": "high",
+                "description": "Overall security posture indicates high risk",
+                "action": "Comprehensive security audit and policy review recommended"
+            })
+        
+        # Role-based recommendations
+        role_effectiveness = access_insights.get("role_effectiveness", {})
+        if role_effectiveness and role_effectiveness.get("total_roles", 0) < 3:
+            recommendations.append({
+                "type": "role_management",
+                "priority": "medium",
+                "description": "Limited role diversity detected",
+                "action": "Consider implementing more granular role-based access control"
+            })
+        
+        return recommendations 

doris_mcp_server/utils/sql_security_utils.py

@@ -0,0 +1,301 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+SQL Security Utilities Module
+
+Provides SQL identifier validation, escaping, and safe query building utilities
+to prevent SQL injection attacks.
+"""
+
+import re
+from contextvars import ContextVar
+from typing import Optional, Tuple, List, Any
+
+from .logger import get_logger
+
+logger = get_logger(__name__)
+
+# Context variable for auth_context (set by HTTP middleware)
+auth_context_var: ContextVar = ContextVar('mcp_auth_context', default=None)
+
+
+class SQLSecurityError(Exception):
+    """Exception raised for SQL security validation failures"""
+    pass
+
+
+class SQLSecurityUtils:
+    """
+    SQL Security Utilities for preventing SQL injection attacks.
+    
+    Provides:
+    - Identifier validation (database names, table names, column names)
+    - Safe identifier quoting with backticks
+    - Safe table reference building
+    - Auth context retrieval from context variables
+    """
+    
+    # Valid SQL identifier pattern: letters, numbers, underscores
+    # Must start with letter or underscore, not a number
+    # Supports Unicode letters for international database/table names
+    IDENTIFIER_PATTERN = re.compile(r'^[a-zA-Z_\u4e00-\u9fff][a-zA-Z0-9_\u4e00-\u9fff]*$')
+    
+    # Maximum identifier length (MySQL/Doris standard)
+    MAX_IDENTIFIER_LENGTH = 64
+    
+    # SQL reserved keywords that should be quoted
+    SQL_KEYWORDS = {
+        'SELECT', 'FROM', 'WHERE', 'INSERT', 'UPDATE', 'DELETE', 'DROP', 
+        'CREATE', 'ALTER', 'TABLE', 'DATABASE', 'INDEX', 'VIEW', 'AND', 
+        'OR', 'NOT', 'NULL', 'TRUE', 'FALSE', 'IN', 'LIKE', 'BETWEEN',
+        'JOIN', 'LEFT', 'RIGHT', 'INNER', 'OUTER', 'ON', 'AS', 'ORDER',
+        'BY', 'GROUP', 'HAVING', 'LIMIT', 'OFFSET', 'UNION', 'ALL',
+        'DISTINCT', 'INTO', 'VALUES', 'SET', 'DEFAULT', 'PRIMARY', 'KEY',
+        'FOREIGN', 'REFERENCES', 'CHECK', 'UNIQUE', 'CONSTRAINT'
+    }
+    
+    @classmethod
+    def validate_identifier(cls, name: str, identifier_type: str = "identifier") -> str:
+        """
+        Validate a SQL identifier (database name, table name, column name, etc.)
+        
+        Args:
+            name: The identifier to validate
+            identifier_type: Type description for error messages (e.g., "database name", "table name")
+        
+        Returns:
+            The validated identifier (unchanged if valid)
+            
+        Raises:
+            SQLSecurityError: If the identifier is invalid
+        """
+        if not name:
+            raise SQLSecurityError(f"Empty {identifier_type} is not allowed")
+        
+        if not isinstance(name, str):
+            raise SQLSecurityError(f"Invalid {identifier_type}: must be a string, got {type(name).__name__}")
+        
+        # Strip whitespace
+        name = name.strip()
+        
+        if not name:
+            raise SQLSecurityError(f"Empty {identifier_type} is not allowed")
+        
+        # Check length
+        if len(name) > cls.MAX_IDENTIFIER_LENGTH:
+            raise SQLSecurityError(
+                f"Invalid {identifier_type}: '{name[:20]}...' exceeds maximum length of {cls.MAX_IDENTIFIER_LENGTH} characters"
+            )
+        
+        # Check for dangerous characters that could be SQL injection
+        dangerous_chars = ["'", '"', ';', '--', '/*', '*/', '\\', '\x00']
+        for char in dangerous_chars:
+            if char in name:
+                raise SQLSecurityError(
+                    f"Invalid {identifier_type}: '{name}' contains forbidden character '{char}'"
+                )
+        
+        # Validate pattern
+        if not cls.IDENTIFIER_PATTERN.match(name):
+            raise SQLSecurityError(
+                f"Invalid {identifier_type}: '{name}' contains invalid characters. "
+                f"Only letters, numbers, and underscores are allowed, and must start with a letter or underscore."
+            )
+        
+        logger.debug(f"Validated {identifier_type}: {name}")
+        return name
+    
+    @classmethod
+    def quote_identifier(cls, name: str, identifier_type: str = "identifier") -> str:
+        """
+        Safely quote a SQL identifier using backticks.
+        
+        Args:
+            name: The identifier to quote
+            identifier_type: Type description for error messages
+        
+        Returns:
+            The quoted identifier (e.g., `table_name`)
+            
+        Raises:
+            SQLSecurityError: If the identifier is invalid
+        """
+        # First validate the identifier
+        validated_name = cls.validate_identifier(name, identifier_type)
+        
+        # Escape any backticks within the name (double them)
+        escaped_name = validated_name.replace('`', '``')
+        
+        return f"`{escaped_name}`"
+    
+    @classmethod
+    def build_table_reference(
+        cls, 
+        table_name: str, 
+        db_name: Optional[str] = None, 
+        catalog_name: Optional[str] = None,
+        quote: bool = True
+    ) -> str:
+        """
+        Build a safe, fully-qualified table reference.
+        
+        Args:
+            table_name: The table name (required)
+            db_name: The database name (optional)
+            catalog_name: The catalog name (optional)
+            quote: Whether to quote identifiers with backticks (default: True)
+        
+        Returns:
+            A safe table reference string (e.g., `catalog`.`db`.`table`)
+            
+        Raises:
+            SQLSecurityError: If any identifier is invalid
+        """
+        parts = []
+        
+        if catalog_name:
+            if quote:
+                parts.append(cls.quote_identifier(catalog_name, "catalog name"))
+            else:
+                parts.append(cls.validate_identifier(catalog_name, "catalog name"))
+        
+        if db_name:
+            if quote:
+                parts.append(cls.quote_identifier(db_name, "database name"))
+            else:
+                parts.append(cls.validate_identifier(db_name, "database name"))
+        
+        if quote:
+            parts.append(cls.quote_identifier(table_name, "table name"))
+        else:
+            parts.append(cls.validate_identifier(table_name, "table name"))
+        
+        return '.'.join(parts)
+    
+    @classmethod
+    def build_column_reference(
+        cls,
+        column_name: str,
+        table_name: Optional[str] = None,
+        quote: bool = True
+    ) -> str:
+        """
+        Build a safe column reference.
+        
+        Args:
+            column_name: The column name (required)
+            table_name: The table name (optional, for qualified references)
+            quote: Whether to quote identifiers with backticks (default: True)
+        
+        Returns:
+            A safe column reference string (e.g., `table`.`column`)
+            
+        Raises:
+            SQLSecurityError: If any identifier is invalid
+        """
+        parts = []
+        
+        if table_name:
+            if quote:
+                parts.append(cls.quote_identifier(table_name, "table name"))
+            else:
+                parts.append(cls.validate_identifier(table_name, "table name"))
+        
+        if quote:
+            parts.append(cls.quote_identifier(column_name, "column name"))
+        else:
+            parts.append(cls.validate_identifier(column_name, "column name"))
+        
+        return '.'.join(parts)
+    
+    @classmethod
+    def validate_and_build_where_condition(
+        cls,
+        column_name: str,
+        operator: str = "=",
+        use_param: bool = True
+    ) -> Tuple[str, bool]:
+        """
+        Build a safe WHERE condition for a column.
+        
+        Args:
+            column_name: The column name
+            operator: The comparison operator (=, !=, <, >, <=, >=, LIKE, IN)
+            use_param: Whether to use parameterized placeholder (%s)
+        
+        Returns:
+            Tuple of (condition_string, needs_param)
+            e.g., ("`column` = %s", True) or ("`column` = DATABASE()", False)
+            
+        Raises:
+            SQLSecurityError: If column name is invalid or operator is not allowed
+        """
+        # Validate column name
+        quoted_column = cls.quote_identifier(column_name, "column name")
+        
+        # Validate operator
+        allowed_operators = {'=', '!=', '<>', '<', '>', '<=', '>=', 'LIKE', 'IN', 'IS'}
+        if operator.upper() not in allowed_operators:
+            raise SQLSecurityError(f"Invalid operator: '{operator}'. Allowed: {allowed_operators}")
+        
+        if use_param:
+            return f"{quoted_column} {operator} %s", True
+        else:
+            return f"{quoted_column} {operator}", False
+    
+    @staticmethod
+    def get_auth_context():
+        """
+        Get auth_context from the context variable.
+        
+        This retrieves the auth_context that was set by the HTTP middleware
+        during request processing.
+        
+        Returns:
+            The auth_context object, or None if not available
+        """
+        try:
+            auth_context = auth_context_var.get()
+            if auth_context:
+                logger.debug(f"Retrieved auth_context from context variable")
+            return auth_context
+        except Exception as e:
+            logger.debug(f"Could not retrieve auth_context: {e}")
+            return None
+    
+    @staticmethod
+    def set_auth_context(auth_context):
+        """
+        Set auth_context in the context variable.
+        
+        This is typically called by the HTTP middleware during request processing.
+        
+        Args:
+            auth_context: The auth_context object to set
+        """
+        auth_context_var.set(auth_context)
+        logger.debug("Set auth_context in context variable")
+
+
+# Convenience functions for direct use
+validate_identifier = SQLSecurityUtils.validate_identifier
+quote_identifier = SQLSecurityUtils.quote_identifier
+build_table_reference = SQLSecurityUtils.build_table_reference
+build_column_reference = SQLSecurityUtils.build_column_reference
+get_auth_context = SQLSecurityUtils.get_auth_context
+set_auth_context = SQLSecurityUtils.set_auth_context
+

examples/cursor/README.md

@@ -0,0 +1,147 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+
+# Cursor Example: Integrating Doris MCP Server
+
+This guide provides step-by-step instructions on how to integrate the `doris-mcp-server` with the [Cursor](https://cursor.sh/) IDE. This integration allows you to interact with your Apache Doris database using natural language queries directly within Cursor's AI chat.
+
+## Table of Contents
+
+* [Prerequisites](#prerequisites)
+* [Step 1: Set Up the Project](#step-1-set-up-the-project)
+* [Step 2: Configure the MCP Server in Cursor](#step-2-configure-the-mcp-server-in-cursor)
+* [Step 3: Verify the Integration](#step-3-verify-the-integration)
+* [Step 4: Query Your Database](#step-4-query-your-database)
+
+  * [Example 1: List Tables](#example-1-list-tables)
+  * [Example 2: Analyze Sales Trends](#example-2-analyze-sales-trends)
+
+---
+
+### Prerequisites
+
+Before you begin, ensure you have the following installed and configured:
+
+* The **Cursor** IDE
+* **Git** for cloning the repository
+* Access to an **Apache Doris** cluster (FE host, port, username, and password)
+* **uv**, a fast Python package installer and runner
+
+You can install `uv` with one of the following commands:
+
+```bash
+# For macOS (recommended)
+brew install uv
+
+# For other systems using pipx
+pipx install uv
+```
+
+---
+
+### Step 1: Set Up the Project
+
+First, clone the `doris-mcp-server` repository to your local machine:
+
+```bash
+git clone https://github.com/apache/doris-mcp-server.git
+
+cd doris-mcp-server
+```
+
+The necessary dependencies are listed in `requirements.txt` and will be managed automatically by `uv` in the next step.
+
+---
+
+### Step 2: Configure the MCP Server in Cursor
+
+1. Open the cloned `doris-mcp-server` directory in Cursor.
+2. Click the ⚙️ icon (top-right), then go to **Tools & Integrations**.
+   ![add MCP Server](../images/cursor_add_mcp.png)
+3. Click **Add a custom MCP Server**.
+4. Paste the following JSON configuration:
+
+```json
+{
+  "mcpServers": {
+    "doris-mcp": {
+      "command": "uv",
+      "args": [
+        "run",
+        "--project",
+        "/path/to/your/doris-mcp-server",
+        "doris-mcp-server"
+      ],  
+      "env": {
+        "DORIS_HOST": "your_doris_fe_host",
+        "DORIS_PORT": "9030",
+        "DORIS_USER": "your_username",
+        "DORIS_PASSWORD": "your_password",
+        "DORIS_DATABASE": "ssb"
+      }
+    }
+  }
+}
+```
+
+> ⚠️ **Important:**
+>
+> * Replace `"/path/to/your/doris-mcp-server"` with the **absolute path** to your local project directory.
+> * Fill in your actual Doris FE host, username, password, and database name.
+
+---
+
+### Step 3: Verify the Integration
+
+Once saved, go back to the **Settings** panel. If everything is configured correctly, you’ll see a green status dot next to `doris-mcp-server`, along with available tools like `exec_query`.
+
+![MCP Server](../images/cursor_doris-mcp.png)
+
+---
+
+### Step 4: Query Your Database
+
+You can now chat with Cursor Agent to run SQL queries against your Doris database.
+
+1. Open the chat panel using `Cmd + K` (macOS) or `Ctrl + K` (Windows/Linux), or click the chat icon in the top-right.
+2. Switch to **Agent Mode**.
+3. Start asking questions using natural language.
+
+![ask](../images/cursor_agent.png)
+
+---
+
+#### Example 1: List Tables
+
+> **Prompt:** What tables are in the `ssb` database?
+
+The agent will call the `get_db_table_list` tool and return the results.
+
+![ask](../images/cursor_ask1.png)
+
+---
+
+#### Example 2: Analyze Sales Trends
+
+> **Prompt:** What has been the sales trend over the past ten years in the `ssb` database, and which year had the fastest growth?
+
+The agent will generate an appropriate SQL query, send it to the MCP server, and interpret the results to give you growth trends and highlights.
+
+![ask](../images/cursor_ask2.png)

examples/dify/README.md

@@ -0,0 +1,156 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+
+# Dify Example: Integrating Doris MCP Server
+
+This document demonstrates how to integrate and use `doris-mcp-server` in Dify to perform Doris SQL calls via MCP.
+
+## Table of Contents
+
+- [Prerequisites](#prerequisites)  
+- [Starting the MCP Server](#starting-the-mcp-server)  
+- [Ngrok Tunnel (Optional)](#ngrok-tunnel-optional)  
+- [Installing & Configuring the Plugin in Dify](#installing--configuring-the-plugin-in-dify)  
+- [Creating a Dify App](#creating-a-dify-app)  
+- [Adding MCP Tools](#adding-mcp-tools)  
+- [Example Calls](#example-calls)
+
+
+-----
+
+### Prerequisites
+
+First, install `mcp-doris-server`:
+
+```bash
+pip install mcp-doris-server
+```
+
+## Starting the MCP Server
+
+Run the startup script:
+
+```bash
+# Full configuration with database connection
+doris-mcp-server \
+    --transport http \
+    --host 0.0.0.0 \
+    --port 3000 \
+    --db-host 127.0.0.1 \
+    --db-port 9030 \
+    --db-user root \
+    --db-password your_password
+```
+
+If successful, you'll see logs similar to this:
+
+![Server start logs](../images/dify_start_server.png)
+
+-----
+
+## Ngrok Tunnel (Optional)
+
+If your Dify deployment requires a publicly accessible endpoint, you can use the **ngrok** tool. Ngrok is a third-party service that securely exposes local servers to the internet.
+
+
+-----
+
+## Installing & Configuring the Plugin in Dify
+
+1.  In the Dify console, go to **Plugin Marketplace**, search for, and install **MCP‑SSE / StreamableHTTP**:
+ ![Install plugin](../images/dify_install_plugin.png)
+
+2.  After installation, click **Configure** and set the URL to your public or local address. For example, if you're using `ngrok`, this should be the public URL `ngrok` provides, in the format `https://<your-domain>/mcp`. If Dify can directly access your local server, use `http://localhost:3000/mcp`.
+
+    ```json
+    {
+      "doris_mcp_server": {
+        "transport": "streamable_http",
+        "url": "https://<your-domain>/mcp"
+      }
+    }
+    ```
+     ![Configure plugin](../images/dify_config_mcp.png)
+
+3.  Click **Save**. If configured correctly, you'll see a green **Authorized** indicator:
+
+   ![Authorized](../images/dify_authorized.png)
+
+-----
+
+## Creating a Dify App
+
+1.  In the Dify console, click **New App** → **Blank App**.
+![Create app](../images/dify_create_app.png)
+
+2.  Select **Agent** as the template and set the **App Name** (e.g., `Doris ChatBI`).
+![Agent setup](../images/dify_agent_setup.png)
+
+
+3.  Import from DSL,[dify_doris_dsl.yml](dify_doris_dsl.yml)
+
+-----
+
+## Instructions & Tool Configuration
+
+### Instruction Block
+
+Paste the following into the **Instruction** field:
+
+```
+<instruction>
+Use MCP tools to complete tasks as much as possible. Carefully read the annotations, method names, and parameter descriptions of each tool. Please follow these steps:
+1. Analyze the user's question and match the most appropriate tool.
+2. Use tool names and parameters exactly as defined; do not invent new ones.
+3. Pass parameters in the required JSON format.
+4. When calling tools, use:
+   {"mcp_sse_call_tool": {"tool_name": "<tool_name>", "arguments": "{}"}}
+5. Output plain text only—no XML tags.
+<input>
+User question: user_query
+</input>
+<output>
+Return tool results or a final answer, including analysis.
+</output>
+</instruction>
+```
+
+### Adding MCP Tools
+
+In the **Tools** pane, click **Add** twice to add two entries, both named `mcp_sse` (they will inherit the transport and URL from the plugin):
+![Add tools](../images/dify_add_tools.png)
+
+-----
+
+## Example Calls
+
+### List Tables in Database
+
+  * **User**: What tables are in the database?
+
+  * **Result**: Dify will call the MCP tool to run `SHOW TABLES` and return the list.
+  ![Query tables](../images/dify_query_tabels.png)
+
+### Sales Trend Over Ten Years
+
+  * **User**: What has been the sales trend over the past ten years in the ssb database, and which year had the fastest growth?
+
+  * **Result**: The tool will execute the SQL, calculate growth rates, and return data.
+  ![Sales trend](../images/dify_sale_trend.png)

examples/dify/dify_doris_dsl.yml

@@ -0,0 +1,127 @@
+app:
+  description: ''
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: agent-chat
+  name: doris
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/deepseek:0.0.5@21408d5c48cd9f18d66b08883d0999fe89e6d049c891324c2229dea23b9665d5
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: junjiem/mcp_sse:0.2.1@53cc613667fcf91dd7208dd5f6d2c8df3c7ff0af8b79e8f3c0a430f1b39bda4c
+kind: app
+model_config:
+  agent_mode:
+    enabled: true
+    max_iteration: 10
+    prompt: null
+    strategy: function_call
+    tools:
+    - enabled: true
+      isDeleted: false
+      notAuthor: false
+      provider_id: junjiem/mcp_sse/mcp_sse
+      provider_name: junjiem/mcp_sse/mcp_sse
+      provider_type: builtin
+      tool_label: 获取 MCP 工具列表
+      tool_name: mcp_sse_list_tools
+      tool_parameters:
+        prompts_as_tools: 1
+        resources_as_tools: 1
+        servers_config: null
+    - enabled: true
+      isDeleted: false
+      notAuthor: false
+      provider_id: junjiem/mcp_sse/mcp_sse
+      provider_name: junjiem/mcp_sse/mcp_sse
+      provider_type: builtin
+      tool_label: 调用 MCP 工具
+      tool_name: mcp_sse_call_tool
+      tool_parameters:
+        arguments: ''
+        prompts_as_tools: ''
+        resources_as_tools: ''
+        servers_config: ''
+        tool_name: ''
+  annotation_reply:
+    enabled: false
+  chat_prompt_config: {}
+  completion_prompt_config: {}
+  dataset_configs:
+    datasets:
+      datasets: []
+    reranking_enable: true
+    reranking_mode: reranking_model
+    reranking_model:
+      reranking_model_name: ''
+      reranking_provider_name: ''
+    retrieval_model: multiple
+    top_k: 4
+  dataset_query_variable: ''
+  external_data_tools: []
+  file_upload:
+    allowed_file_extensions:
+    - .JPG
+    - .JPEG
+    - .PNG
+    - .GIF
+    - .WEBP
+    - .SVG
+    - .MP4
+    - .MOV
+    - .MPEG
+    - .WEBM
+    allowed_file_types: []
+    allowed_file_upload_methods:
+    - remote_url
+    - local_file
+    enabled: false
+    image:
+      detail: high
+      enabled: false
+      number_limits: 3
+      transfer_methods:
+      - remote_url
+      - local_file
+    number_limits: 3
+  model:
+    completion_params:
+      stop: []
+    mode: chat
+    name: deepseek-chat
+    provider: langgenius/deepseek/deepseek
+  more_like_this:
+    enabled: false
+  opening_statement: ''
+  pre_prompt: "<instruction>\nUse MCP tools to complete tasks as much as possible.\
+    \ Carefully read the annotations, method names, and parameter descriptions of\
+    \ each tool. Please follow these steps:\n1. Analyze the user's question and match\
+    \ the most appropriate tool.\n2. Use tool names and parameters exactly as defined;\
+    \ do not invent new ones.\n3. Pass parameters in the required JSON format.\n4.\
+    \ When calling tools, use:\n   {\"mcp_sse_call_tool\": {\"tool_name\": \"<tool_name>\"\
+    , \"arguments\": \"{}\"}}\n5. Output plain text only—no XML tags.\n<input>\nUser\
+    \ question: user_query\n</input>\n<output>\nReturn tool results or a final answer,\
+    \ including analysis.\n</output>\n</instruction>"
+  prompt_type: simple
+  retriever_resource:
+    enabled: true
+  sensitive_word_avoidance:
+    configs: []
+    enabled: false
+    type: ''
+  speech_to_text:
+    enabled: false
+  suggested_questions: []
+  suggested_questions_after_answer:
+    enabled: false
+  text_to_speech:
+    enabled: false
+    language: ''
+    voice: ''
+  user_input_form: []
+version: 0.3.0

pyproject.toml

@@ -20,7 +20,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "doris-mcp-server"
-version = "0.3.0"
+version = "0.6.1"
 description = "Enterprise-grade Model Context Protocol (MCP) server implementation for Apache Doris"
 authors = [
     {name = "Yijia Su", email = "freeoneplus@apache.org"}
@@ -42,10 +42,14 @@ classifiers = [
 
 dependencies = [
     # Core MCP dependencies
-    "mcp>=1.0.0",
+    "mcp>=1.8.0,<2.0.0",
     # Database drivers
     "aiomysql>=0.2.0",
     "PyMySQL>=1.1.0",
+    # ADBC (Arrow Flight SQL) dependencies
+    "adbc-driver-manager>=0.8.0",
+    "adbc-driver-flightsql>=0.8.0",
+    "pyarrow>=14.0.0",
     # Async and utility libraries
     "asyncio-mqtt>=0.16.0",
     "aiofiles>=23.0.0",

requirements-dev.txt

@@ -1,21 +1,5 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-# 开发依赖 - 从 pyproject.toml 自动生成
-# 安装命令: pip install -r requirements-dev.txt
+# Development dependencies - auto-generated from pyproject.toml
+# Installation command: pip install -r requirements-dev.txt
 
 pytest>=7.4.0
 pytest-asyncio>=0.23.0

requirements.txt

@@ -1,26 +1,13 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-# 主要依赖 - 从 pyproject.toml 自动生成
-# 请不要手动编辑此文件，使用 python generate_requirements.py 重新生成
+# Main dependencies - auto-generated from pyproject.toml
+# Do not edit this file manually, use 'python generate_requirements.py' to regenerate
 
-# === 核心依赖 ===
-mcp>=1.0.0
+# === Core Dependencies ===
+mcp>=1.8.0,<2.0.0
 aiomysql>=0.2.0
 PyMySQL>=1.1.0
+adbc-driver-manager>=0.8.0
+adbc-driver-flightsql>=0.8.0
+pyarrow>=14.0.0
 asyncio-mqtt>=0.16.0
 aiofiles>=23.0.0
 aiohttp>=3.9.0
@@ -53,8 +40,11 @@ click>=8.1.0
 typer>=0.9.0
 requests>=2.31.0
 tqdm>=4.66.0
+pytest>=8.4.0
+pytest-asyncio>=1.0.0
+pytest-cov>=6.1.1
 
-# === 开发依赖 ===
+# === Development Dependencies ===
 pytest>=7.4.0
 pytest-asyncio>=0.23.0
 pytest-cov>=4.1.0

start_server.sh

@@ -64,9 +64,11 @@ else
 fi
 
 # Set HTTP-specific environment variables
+# FIX for Issue #62 Bug 4: Use SERVER_PORT instead of MCP_PORT for consistency with code
 export MCP_TRANSPORT_TYPE="http"
 export MCP_HOST="${MCP_HOST:-0.0.0.0}"
-export MCP_PORT="${MCP_PORT:-3000}"
+export SERVER_PORT="${SERVER_PORT:-3000}"  # Changed from MCP_PORT to SERVER_PORT
+export WORKERS="${WORKERS:-1}"
 export ALLOWED_ORIGINS="${ALLOWED_ORIGINS:-*}"
 export LOG_LEVEL="${LOG_LEVEL:-info}"
 export MCP_ALLOW_CREDENTIALS="${MCP_ALLOW_CREDENTIALS:-false}"
@@ -76,14 +78,15 @@ export MCP_DEBUG_ADAPTER="true"
 export PYTHONPATH="$(pwd):$PYTHONPATH"
 
 echo -e "${GREEN}Starting MCP server (Streamable HTTP mode)...${NC}"
-echo -e "${YELLOW}Service will run on http://${MCP_HOST}:${MCP_PORT}/mcp${NC}"
-echo -e "${YELLOW}Health Check: http://${MCP_HOST}:${MCP_PORT}/health${NC}"
-echo -e "${YELLOW}MCP Endpoint: http://${MCP_HOST}:${MCP_PORT}/mcp${NC}"
-echo -e "${YELLOW}Local access: http://localhost:${MCP_PORT}/mcp${NC}"
+echo -e "${YELLOW}Service will run on http://${MCP_HOST}:${SERVER_PORT}/mcp${NC}"
+echo -e "${YELLOW}Health Check: http://${MCP_HOST}:${SERVER_PORT}/health${NC}"
+echo -e "${YELLOW}MCP Endpoint: http://${MCP_HOST}:${SERVER_PORT}/mcp${NC}"
+echo -e "${YELLOW}Local access: http://localhost:${SERVER_PORT}/mcp${NC}"
+echo -e "${YELLOW}Workers: ${WORKERS}${NC}"
 echo -e "${YELLOW}Use Ctrl+C to stop the service${NC}"
 
 # Start the server in HTTP mode (Streamable HTTP)
-python -m doris_mcp_server.main --transport http --host ${MCP_HOST} --port ${MCP_PORT}
+python -m doris_mcp_server.main --transport http --host ${MCP_HOST} --port ${SERVER_PORT} --workers ${WORKERS}
 
 # Check exit status
 if [ $? -ne 0 ]; then
@@ -95,4 +98,4 @@ fi
 echo -e "${YELLOW}Tip: If the page displays abnormally, please clear your browser cache or use incognito mode${NC}"
 echo -e "${YELLOW}Chrome browser clear cache shortcut: Ctrl+Shift+Del (Windows) or Cmd+Shift+Del (Mac)${NC}"
 echo -e "${CYAN}For testing HTTP endpoints, you can use:${NC}"
-echo -e "${CYAN}  curl -X POST http://localhost:${MCP_PORT}/mcp -H 'Content-Type: application/json' -d '{\"method\":\"tools/list\"}'${NC}" 
+echo -e "${CYAN}  curl -X POST http://localhost:${SERVER_PORT}/mcp -H 'Content-Type: application/json' -d '{\"method\":\"tools/list\"}'${NC}" 

test/conftest.py

@@ -47,22 +47,29 @@ def event_loop():
 
 @pytest.fixture
 def test_config():
-    """Provide test configuration"""
-    return {
-        "doris_host": "localhost",
-        "doris_port": 9030,
-        "doris_user": "test_user",
-        "doris_password": "test_password",
-        "doris_database": "test_db",
-        "blocked_keywords": ["DROP", "DELETE", "TRUNCATE", "ALTER", "CREATE", "INSERT", "UPDATE"],
-        "sensitive_tables": {
-            "user_info": "confidential",
-            "payment_records": "secret",
-            "employee_data": "confidential",
-            "public_reports": "public"
-        },
-        "max_query_complexity": 100
-    }
+    """Test configuration fixture"""
+    from doris_mcp_server.utils.config import DorisConfig, DatabaseConfig, SecurityConfig
+    
+    config = DorisConfig()
+    
+    # Database configuration
+    config.database.host = "localhost"
+    config.database.port = 9030
+    config.database.user = "test_user"
+    config.database.password = "test_password"
+    config.database.database = "test_db"
+    config.database.health_check_interval = 60
+    config.database.max_connections = 20
+    config.database.connection_timeout = 30
+    config.database.max_connection_age = 3600
+    
+    # Security configuration
+    config.security.enable_masking = True
+    config.security.auth_type = "token"
+    config.security.token_secret = "test_secret"
+    config.security.token_expiry = 3600
+    
+    return config
 
 
 @pytest.fixture

test/integration/test_end_to_end.py

@@ -34,17 +34,9 @@ class TestEndToEndIntegration:
     @pytest.fixture
     def mock_config(self):
         """Create mock configuration"""
-        from doris_mcp_server.utils.config import DatabaseConfig, SecurityConfig
+        from doris_mcp_server.utils.config import ADBCConfig, DatabaseConfig, SecurityConfig
         
         config = Mock(spec=DorisConfig)
-        config.doris_host = "localhost"
-        config.doris_port = 9030
-        config.doris_user = "test_user"
-        config.doris_password = "test_password"
-        config.doris_database = "test_db"
-        config.server_host = "localhost"
-        config.server_port = 8000
-        config.enable_security = True
         
         # Add database config
         config.database = Mock(spec=DatabaseConfig)
@@ -54,7 +46,6 @@ class TestEndToEndIntegration:
         config.database.password = "test_password"
         config.database.database = "test_db"
         config.database.health_check_interval = 60
-        config.database.min_connections = 5
         config.database.max_connections = 20
         config.database.connection_timeout = 30
         config.database.max_connection_age = 3600
@@ -65,7 +56,12 @@ class TestEndToEndIntegration:
         config.security.auth_type = "token"
         config.security.token_secret = "test_secret"
         config.security.token_expiry = 3600
+        config.security.blocked_keywords = ["DROP"]
         
+        # Add adbc config
+        config.adbc = Mock(spec=ADBCConfig)
+        config.adbc.enabled = True
+
         return config
 
     @pytest.fixture
@@ -239,7 +235,7 @@ class TestEndToEndIntegration:
     @pytest.mark.asyncio
     async def test_tool_execution_with_security(self, doris_server):
         """Test tool execution with security checks"""
-        with patch.object(doris_server.tools_manager.query_executor, 'execute_query') as mock_execute:
+        with patch.object(doris_server.tools_manager.connection_manager, 'execute_query') as mock_execute:
             mock_execute.return_value = [{"Database": "test_db"}]
             
             # Test tool execution through tools manager
@@ -266,7 +262,7 @@ class TestEndToEndIntegration:
     @pytest.mark.asyncio
     async def test_performance_monitoring_integration(self, doris_server):
         """Test performance monitoring integration"""
-        with patch.object(doris_server.tools_manager.query_executor, 'execute_query') as mock_execute:
+        with patch.object(doris_server.tools_manager.connection_manager, 'execute_query') as mock_execute:
             mock_execute.return_value = [
                 {
                     "query_count": 1500,
@@ -277,10 +273,7 @@ class TestEndToEndIntegration:
             ]
             
             # Test performance stats tool
-            result = await doris_server.tools_manager.call_tool("performance_stats", {
-                "metric_type": "queries",
-                "time_range": "1h"
-            })
+            result = await doris_server.tools_manager.call_tool("get_db_list", {})
             result_data = json.loads(result)
             
             # Accept either success result or error (due to mock environment)
@@ -296,4 +289,4 @@ class TestEndToEndIntegration:
         # Verify tools are available - use list_tools instead
         import asyncio
         tools = asyncio.run(doris_server.tools_manager.list_tools())
-        assert len(tools) > 0 
+        assert len(tools) > 0 

test/security/test_sql_injection.py

@@ -0,0 +1,367 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+"""
+SQL Security Test Suite for Apache Doris MCP Server
+
+Tests for:
+1. SQL injection prevention via identifier validation
+2. Multi-statement SQL parsing in security validator
+3. auth_context enforcement
+"""
+
+import pytest
+import asyncio
+from unittest.mock import MagicMock, AsyncMock, patch
+
+
+class TestSQLSecurityUtils:
+    """Test cases for sql_security_utils module"""
+    
+    def test_validate_identifier_accepts_valid_names(self):
+        """Test that valid identifiers are accepted"""
+        from doris_mcp_server.utils.sql_security_utils import validate_identifier
+        
+        valid_names = [
+            "users",
+            "my_table",
+            "Table123",
+            "_private_table",
+            "CamelCaseTable",
+            "table_with_numbers_123",
+        ]
+        
+        for name in valid_names:
+            result = validate_identifier(name, "table")
+            assert result == name, f"Valid identifier '{name}' should be accepted"
+    
+    def test_validate_identifier_rejects_sql_injection(self):
+        """Test that SQL injection attempts are rejected"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier, 
+            SQLSecurityError
+        )
+        
+        injection_attempts = [
+            # Basic SQL injection
+            "'; DROP TABLE users; --",
+            "table' OR '1'='1",
+            "table'; DELETE FROM users; --",
+            
+            # Union-based injection
+            "table' UNION SELECT * FROM passwords --",
+            
+            # Comment injection
+            "table/**/OR/**/1=1",
+            "table--comment",
+            
+            # Special characters
+            "table`; DROP TABLE users;",
+            'table"; DROP TABLE users;',
+            "table\"; DELETE FROM",
+            
+            # Backtick escape attempt
+            "analytics`; SELECT * FROM sensitive_table;--",
+            
+            # Whitespace injection
+            "table name with spaces",
+            "table\ttab",
+            "table\nnewline",
+        ]
+        
+        for injection in injection_attempts:
+            with pytest.raises(SQLSecurityError):
+                validate_identifier(injection, "table")
+    
+    def test_validate_identifier_rejects_empty(self):
+        """Test that empty identifiers are rejected"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier, 
+            SQLSecurityError
+        )
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier("", "table")
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(None, "table")
+    
+    def test_validate_identifier_rejects_too_long(self):
+        """Test that identifiers exceeding max length are rejected"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier, 
+            SQLSecurityError
+        )
+        
+        # Doris identifier max length is typically 64 characters
+        long_name = "a" * 100
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(long_name, "table")
+    
+    def test_quote_identifier_adds_backticks(self):
+        """Test that quote_identifier properly escapes identifiers"""
+        from doris_mcp_server.utils.sql_security_utils import quote_identifier
+        
+        assert quote_identifier("my_table", "table") == "`my_table`"
+        assert quote_identifier("users", "table") == "`users`"
+        assert quote_identifier("Table123", "table") == "`Table123`"
+    
+    def test_quote_identifier_validates_first(self):
+        """Test that quote_identifier validates before quoting"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            quote_identifier, 
+            SQLSecurityError
+        )
+        
+        with pytest.raises(SQLSecurityError):
+            quote_identifier("'; DROP TABLE users; --", "table")
+
+
+class TestSQLSecurityValidator:
+    """Test cases for SQLSecurityValidator multi-statement parsing"""
+    
+    @pytest.fixture
+    def dict_config(self):
+        """Create dictionary configuration"""
+        return {
+            "blocked_keywords": [
+                "DROP", "CREATE", "ALTER", "TRUNCATE",
+                "DELETE", "INSERT", "UPDATE",
+                "GRANT", "REVOKE", "EXEC", "EXECUTE"
+            ],
+            "max_query_complexity": 100,
+            "enable_security_check": True
+        }
+    
+    @pytest.fixture
+    def mock_auth_context(self):
+        """Create mock auth context"""
+        from doris_mcp_server.utils.security import AuthContext, SecurityLevel
+        return AuthContext(
+            user_id="test_user",
+            roles=["user"],
+            security_level=SecurityLevel.INTERNAL
+        )
+    
+    @pytest.mark.asyncio
+    async def test_validates_all_statements(self, dict_config, mock_auth_context):
+        """Test that validator checks ALL SQL statements, not just the first"""
+        from doris_mcp_server.utils.security import SQLSecurityValidator
+        
+        validator = SQLSecurityValidator(dict_config)
+        
+        # Multi-statement with injection in second statement
+        # This should be BLOCKED
+        malicious_sql = "SELECT 1; DROP TABLE users; SELECT 2"
+        
+        result = await validator.validate(malicious_sql, mock_auth_context)
+        
+        assert not result.is_valid, "Multi-statement injection should be blocked"
+        # Check for either DROP keyword detection or SQL injection detection
+        error_upper = result.error_message.upper()
+        assert ("DROP" in error_upper or 
+                "INJECTION" in error_upper or 
+                "BLOCKED" in error_upper), f"Expected DROP/injection/blocked in: {result.error_message}"
+    
+    @pytest.mark.asyncio
+    async def test_blocks_hidden_dangerous_statement(self, dict_config, mock_auth_context):
+        """Test that dangerous statements hidden after safe ones are blocked"""
+        from doris_mcp_server.utils.security import SQLSecurityValidator
+        
+        validator = SQLSecurityValidator(dict_config)
+        
+        # Safe statement followed by dangerous one
+        malicious_sql = """
+        SELECT * FROM users WHERE id = 1;
+        DELETE FROM audit_log;
+        SELECT 1;
+        """
+        
+        result = await validator.validate(malicious_sql, mock_auth_context)
+        
+        assert not result.is_valid, "Hidden DELETE statement should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_allows_safe_multi_statement(self, dict_config, mock_auth_context):
+        """Test that multiple safe SELECT statements are allowed"""
+        from doris_mcp_server.utils.security import SQLSecurityValidator
+        
+        validator = SQLSecurityValidator(dict_config)
+        
+        safe_sql = """
+        SELECT * FROM users;
+        SELECT COUNT(*) FROM orders;
+        SELECT id, name FROM products;
+        """
+        
+        result = await validator.validate(safe_sql, mock_auth_context)
+        
+        assert result.is_valid, f"Multiple safe SELECT statements should be allowed, got: {result.error_message}"
+    
+    @pytest.mark.asyncio
+    async def test_context_switch_injection_blocked(self, dict_config, mock_auth_context):
+        """Test that context switch SQL injection is blocked"""
+        from doris_mcp_server.utils.security import SQLSecurityValidator
+        
+        validator = SQLSecurityValidator(dict_config)
+        
+        # Simulating the exec_query_for_mcp attack vector
+        injected_sql = """
+        USE `analytics`; SELECT * FROM sensitive_table;-- `;
+        SELECT * FROM public_table;
+        """
+        
+        result = await validator.validate(injected_sql, mock_auth_context)
+        
+        # The validator should process all statements
+        # Even if USE is allowed, subsequent unauthorized access should be caught
+        # by table access checks (if configured)
+
+
+class TestExecQueryForMCP:
+    """Test cases for exec_query_for_mcp function"""
+    
+    @pytest.mark.asyncio
+    async def test_rejects_malicious_db_name(self):
+        """Test that malicious db_name is rejected"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        # The attack vector from security report
+        malicious_db_name = "analytics`; SELECT * FROM sensitive_table;--"
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(malicious_db_name, "database name")
+    
+    @pytest.mark.asyncio
+    async def test_rejects_malicious_catalog_name(self):
+        """Test that malicious catalog_name is rejected"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        malicious_catalog_name = "internal'; DROP DATABASE production;--"
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(malicious_catalog_name, "catalog name")
+
+
+class TestDependencyAnalysisTools:
+    """Test cases for dependency_analysis_tools security fixes"""
+    
+    @pytest.mark.asyncio
+    async def test_get_tables_metadata_rejects_injection(self):
+        """Test that _get_tables_metadata rejects SQL injection"""
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        # The attack vector from security report
+        injection_db_name = "test_db' OR '1'='1' --"
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(injection_db_name, "database name")
+
+
+class TestAuthContextEnforcement:
+    """Test cases for auth_context enforcement"""
+    
+    def test_execute_requires_auth_context_for_security(self):
+        """Test that security checks require auth_context"""
+        # This test documents the expected behavior:
+        # When auth_context is None, security checks are skipped
+        # When auth_context is provided, security checks are performed
+        
+        # The fix ensures all execute() calls pass auth_context
+        pass
+    
+    @pytest.mark.asyncio
+    async def test_get_auth_context_returns_context(self):
+        """Test that get_auth_context retrieves context from ContextVar"""
+        from doris_mcp_server.utils.sql_security_utils import get_auth_context
+        
+        # When no context is set, should return None
+        result = get_auth_context()
+        # This is expected - context is set by HTTP middleware
+        assert result is None or hasattr(result, 'user_id')
+
+
+class TestIntegrationScenarios:
+    """Integration test scenarios for security fixes"""
+    
+    def test_attack_scenario_1_permission_bypass(self):
+        """
+        Attack Scenario 1: Permission Bypass in Multi-Tenant Environment
+        
+        Expected: User can only query their own database (db_name="tenant_a_db")
+        Attack: Inject "tenant_a_db' OR '1'='1' --" to query ALL databases
+        Result: Should be BLOCKED by validate_identifier()
+        """
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier("tenant_a_db' OR '1'='1' --", "database name")
+    
+    def test_attack_scenario_2_union_injection(self):
+        """
+        Attack Scenario 2: UNION-based Information Disclosure
+        
+        Attack: Inject UNION SELECT to extract sensitive data
+        Result: Should be BLOCKED
+        """
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(
+                "test' UNION SELECT password FROM users --",
+                "database name"
+            )
+    
+    def test_attack_scenario_3_backtick_escape(self):
+        """
+        Attack Scenario 3: Backtick Escape Attempt
+        
+        Attack: Use backticks to break out of quoted identifier
+        Result: Should be BLOCKED
+        """
+        from doris_mcp_server.utils.sql_security_utils import (
+            validate_identifier,
+            SQLSecurityError
+        )
+        
+        with pytest.raises(SQLSecurityError):
+            validate_identifier(
+                "analytics`; SELECT * FROM sensitive_table;--",
+                "database name"
+            )
+
+
+# Run tests with: pytest tests/test_sql_security.py -v
+if __name__ == "__main__":
+    pytest.main([__file__, "-v", "--tb=short"])
+

test/security/test_sql_injection_api.py

@@ -0,0 +1,871 @@
+#!/usr/bin/env python3
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+"""
+SQL Injection API Integration Tests
+
+This module tests SQL injection prevention through the MCP HTTP API.
+It sends malicious payloads and verifies they are properly blocked.
+
+Prerequisites:
+    - MCP server running on localhost:3000
+    - Run with: pytest test/security/test_sql_injection_api.py -v
+
+Usage:
+    # Start server first
+    bash start_server.sh
+    
+    # Run tests
+    pytest test/security/test_sql_injection_api.py -v --no-cov
+"""
+
+import pytest
+import httpx
+import json
+import asyncio
+from typing import Optional
+
+
+# Server configuration
+MCP_BASE_URL = "http://localhost:3000"
+MCP_ENDPOINT = f"{MCP_BASE_URL}/mcp"
+HEALTH_ENDPOINT = f"{MCP_BASE_URL}/health"
+TIMEOUT = 30.0
+
+
+class MCPClient:
+    """Simple MCP HTTP client for testing"""
+    
+    def __init__(self, base_url: str = MCP_BASE_URL):
+        self.base_url = base_url
+        self.mcp_endpoint = f"{base_url}/mcp"
+        self.session_id: Optional[str] = None
+        self.request_id = 0
+        self.client = httpx.AsyncClient(timeout=TIMEOUT)
+    
+    async def close(self):
+        await self.client.aclose()
+    
+    def _next_id(self) -> int:
+        self.request_id += 1
+        return self.request_id
+    
+    async def initialize(self) -> dict:
+        """Initialize MCP session"""
+        response = await self.client.post(
+            self.mcp_endpoint,
+            headers={
+                "Content-Type": "application/json",
+                "Accept": "application/json, text/event-stream"
+            },
+            json={
+                "jsonrpc": "2.0",
+                "method": "initialize",
+                "params": {
+                    "protocolVersion": "2024-11-05",
+                    "capabilities": {},
+                    "clientInfo": {
+                        "name": "sql-injection-test",
+                        "version": "1.0.0"
+                    }
+                },
+                "id": self._next_id()
+            }
+        )
+        
+        # Extract session ID from response header
+        self.session_id = response.headers.get("mcp-session-id")
+        return self._parse_response(response.text)
+    
+    async def call_tool(self, tool_name: str, arguments: dict) -> dict:
+        """Call an MCP tool"""
+        if not self.session_id:
+            await self.initialize()
+        
+        response = await self.client.post(
+            self.mcp_endpoint,
+            headers={
+                "Content-Type": "application/json",
+                "Accept": "application/json, text/event-stream",
+                "mcp-session-id": self.session_id
+            },
+            json={
+                "jsonrpc": "2.0",
+                "method": "tools/call",
+                "params": {
+                    "name": tool_name,
+                    "arguments": arguments
+                },
+                "id": self._next_id()
+            }
+        )
+        
+        return self._parse_response(response.text)
+    
+    def _parse_response(self, text: str) -> dict:
+        """Parse JSON response"""
+        try:
+            return json.loads(text)
+        except json.JSONDecodeError:
+            # Try SSE format
+            lines = text.strip().split("\n")
+            for line in lines:
+                if line.startswith("data: "):
+                    try:
+                        return json.loads(line[6:])
+                    except json.JSONDecodeError:
+                        continue
+            return {"raw": text}
+
+
+def print_result(test_name: str, payload: dict, result: dict):
+    """Print test result in a readable format"""
+    print(f"\n{'='*60}")
+    print(f"TEST: {test_name}")
+    print(f"{'='*60}")
+    print(f"PAYLOAD: {json.dumps(payload, ensure_ascii=False)}")
+    print(f"{'-'*60}")
+    
+    # Extract inner result content
+    if "result" in result and "content" in result.get("result", {}):
+        for item in result["result"]["content"]:
+            if item.get("type") == "text":
+                try:
+                    inner = json.loads(item["text"])
+                    print("RESPONSE:")
+                    print(f"  success: {inner.get('success')}")
+                    if inner.get('error'):
+                        print(f"  error: {inner.get('error')}")
+                    if inner.get('error_type'):
+                        print(f"  error_type: {inner.get('error_type')}")
+                    if inner.get('risk_level'):
+                        print(f"  risk_level: {inner.get('risk_level')}")
+                    if inner.get('message'):
+                        print(f"  message: {inner.get('message')}")
+                    if inner.get('data') is not None and inner.get('success'):
+                        data_str = json.dumps(inner.get('data'), ensure_ascii=False)
+                        if len(data_str) > 200:
+                            data_str = data_str[:200] + "..."
+                        print(f"  data: {data_str}")
+                except (json.JSONDecodeError, TypeError):
+                    print(f"RESPONSE (raw): {item.get('text', '')[:500]}")
+    elif "error" in result:
+        print(f"RESPONSE ERROR: {result['error']}")
+    else:
+        print(f"RESPONSE (raw): {json.dumps(result, ensure_ascii=False)[:500]}")
+    
+    print(f"{'='*60}\n")
+
+
+class TestSQLInjectionAPI:
+    """Test SQL injection prevention through MCP API"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.fixture
+    def is_server_running(self):
+        """Check if MCP server is running"""
+        import httpx
+        try:
+            response = httpx.get(HEALTH_ENDPOINT, timeout=5.0)
+            return response.status_code == 200
+        except Exception:
+            return False
+    
+    @pytest.mark.asyncio
+    async def test_server_health(self):
+        """Test that MCP server is running and healthy"""
+        async with httpx.AsyncClient() as client:
+            response = await client.get(HEALTH_ENDPOINT)
+            assert response.status_code == 200
+            data = response.json()
+            assert data["status"] == "healthy"
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_with_drop_injection(self, mcp_client):
+        """Test exec_query rejects DROP TABLE injection"""
+        # Classic SQL injection: append DROP TABLE
+        payload = {"sql": "SELECT * FROM users; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("DROP TABLE Injection", payload, result)
+        
+        # Should return error, not execute the DROP
+        assert self._is_blocked_or_error(result), \
+            f"DROP TABLE injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_with_union_injection(self, mcp_client):
+        """Test exec_query blocks UNION-based injection attempts"""
+        # UNION injection to extract data from other tables
+        payload = {"sql": "SELECT id FROM users UNION SELECT password FROM admin_users"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("UNION Injection", payload, result)
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_with_delete_injection(self, mcp_client):
+        """Test exec_query rejects DELETE injection"""
+        payload = {"sql": "SELECT 1; DELETE FROM users WHERE 1=1; SELECT 2"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("DELETE Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"DELETE injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_with_update_injection(self, mcp_client):
+        """Test exec_query rejects UPDATE injection"""
+        payload = {"sql": "SELECT 1; UPDATE users SET role='admin' WHERE id=1; --"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("UPDATE Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"UPDATE injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_db_name_injection(self, mcp_client):
+        """Test exec_query rejects SQL injection via db_name parameter"""
+        # Attack vector: inject SQL via db_name parameter
+        payload = {"sql": "SELECT 1", "db_name": "test'; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("db_name Parameter Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_query_catalog_name_injection(self, mcp_client):
+        """Test exec_query rejects SQL injection via catalog_name parameter"""
+        # Attack vector: inject SQL via catalog_name parameter
+        payload = {"sql": "SELECT 1", "catalog_name": "internal`; SELECT * FROM mysql.user; --"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("catalog_name Parameter Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"catalog_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_schema_injection(self, mcp_client):
+        """Test get_table_schema rejects SQL injection via table_name"""
+        # Attack vector: inject SQL via table_name parameter
+        payload = {"table_name": "users'; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("get_table_schema", payload)
+        print_result("table_name Injection (get_table_schema)", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_schema_db_injection(self, mcp_client):
+        """Test get_table_schema rejects SQL injection via db_name"""
+        payload = {"table_name": "users", "db_name": "test' OR '1'='1"}
+        result = await mcp_client.call_tool("get_table_schema", payload)
+        print_result("db_name Injection (get_table_schema)", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"db_name injection in get_table_schema should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_analyze_dependencies_injection(self, mcp_client):
+        """Test analyze_dependencies rejects SQL injection"""
+        # This was the original vulnerability reported
+        payload = {"table_name": "users", "db_name": "test_db' OR '1'='1' --"}
+        result = await mcp_client.call_tool("analyze_dependencies", payload)
+        print_result("analyze_dependencies Injection (Original Report)", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"analyze_dependencies db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_stacked_queries_injection(self, mcp_client):
+        """Test that stacked queries (multiple statements) are blocked"""
+        # Multiple statements injection
+        payload = {"sql": "SELECT * FROM users WHERE id = 1; INSERT INTO audit_log VALUES (NULL, 'hacked', NOW()); SELECT 1;"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Stacked Queries (INSERT) Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"Stacked queries with INSERT should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_comment_based_injection(self, mcp_client):
+        """Test that comment-based injection is blocked"""
+        # Using comments to bypass filters
+        payload = {"sql": "SELECT * FROM users WHERE id = 1/**/OR/**/1=1"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Comment-based Injection", payload, result)
+    
+    @pytest.mark.asyncio
+    async def test_hex_encoded_injection(self, mcp_client):
+        """Test that hex-encoded injection attempts are handled"""
+        # Hex-encoded 'DROP' attempt
+        payload = {"sql": "SELECT 0x44524F50205441424C4520757365727320"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Hex Encoded Injection", payload, result)
+    
+    @pytest.mark.asyncio
+    async def test_backtick_escape_injection(self, mcp_client):
+        """Test backtick escape injection is blocked"""
+        # Attempt to escape backtick quoting
+        payload = {"sql": "SELECT 1", "db_name": "analytics`; SELECT * FROM sensitive_table;--"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Backtick Escape Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            f"Backtick escape injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_valid_query_succeeds(self, mcp_client):
+        """Test that valid queries still work"""
+        # Simple valid query should work
+        payload = {"sql": "SELECT 1 AS test_value"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Valid Query (should succeed)", payload, result)
+    
+    @pytest.mark.asyncio
+    async def test_valid_show_databases(self, mcp_client):
+        """Test that SHOW DATABASES works"""
+        payload = {"sql": "SHOW DATABASES"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("SHOW DATABASES (should succeed)", payload, result)
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        
+        # Check for JSON-RPC error
+        if "error" in result:
+            return True
+        
+        # Check for error in result content
+        if "result" in result:
+            result_content = result.get("result", {})
+            if isinstance(result_content, dict):
+                # Check for isError flag
+                if result_content.get("isError"):
+                    return True
+                # Check content array for error messages
+                content = result_content.get("content", [])
+                for item in content:
+                    if isinstance(item, dict):
+                        text = item.get("text", "")
+                        # Parse the JSON text content
+                        try:
+                            text_data = json.loads(text)
+                            # Check for success: false
+                            if text_data.get("success") is False:
+                                return True
+                            # Check for error field
+                            if text_data.get("error"):
+                                return True
+                        except (json.JSONDecodeError, TypeError):
+                            pass
+                        # Check text for security keywords
+                        if any(keyword in text.lower() for keyword in [
+                            "error", "blocked", "invalid", "security",
+                            "injection", "denied", "forbidden", "not allowed",
+                            "security_violation", "risk_level"
+                        ]):
+                            return True
+        
+        # Check raw text response
+        raw = result.get("raw", "")
+        if isinstance(raw, str) and any(keyword in raw.lower() for keyword in [
+            "error", "blocked", "invalid", "security"
+        ]):
+            return True
+        
+        return False
+
+
+class TestIdentifierInjectionAPI:
+    """Test identifier-based SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_table_name_with_semicolon(self, mcp_client):
+        """Test table name containing semicolon is rejected"""
+        payload = {"table_name": "users; DROP TABLE users"}
+        result = await mcp_client.call_tool("get_table_schema", payload)
+        print_result("Table Name with Semicolon", payload, result)
+        
+        # Should be blocked by identifier validation
+        assert self._contains_error_indicator(result), \
+            f"Table name with semicolon should be rejected"
+    
+    @pytest.mark.asyncio
+    async def test_table_name_with_quotes(self, mcp_client):
+        """Test table name containing quotes is rejected"""
+        payload = {"table_name": "users' OR '1'='1"}
+        result = await mcp_client.call_tool("get_table_schema", payload)
+        print_result("Table Name with Quotes", payload, result)
+        
+        assert self._contains_error_indicator(result), \
+            f"Table name with quotes should be rejected"
+    
+    @pytest.mark.asyncio  
+    async def test_db_name_with_special_chars(self, mcp_client):
+        """Test database name with special characters is rejected"""
+        special_chars = [
+            "test;db",
+            "test'db",
+            "test\"db",
+            "test`db",
+            "test--db",
+            "test/*db*/",
+        ]
+        
+        for db_name in special_chars:
+            payload = {"table_name": "users", "db_name": db_name}
+            result = await mcp_client.call_tool("get_table_schema", payload)
+            print_result(f"Special Char in db_name: {db_name}", payload, result)
+            
+            assert self._contains_error_indicator(result), \
+                f"db_name '{db_name}' should be rejected"
+    
+    @pytest.mark.asyncio
+    async def test_valid_identifiers_accepted(self, mcp_client):
+        """Test that valid identifiers are accepted"""
+        valid_names = [
+            "users",
+            "my_table",
+            "Table123",
+            "_internal_table",
+        ]
+        
+        for table_name in valid_names:
+            payload = {"table_name": table_name}
+            result = await mcp_client.call_tool("get_table_schema", payload)
+            print_result(f"Valid Identifier: {table_name}", payload, result)
+    
+    def _contains_error_indicator(self, result: dict) -> bool:
+        """Check if result contains error indicators"""
+        if not result:
+            return True
+        
+        # Check for JSON-RPC error
+        if "error" in result:
+            return True
+        
+        # Check result content
+        result_str = json.dumps(result).lower()
+        error_keywords = [
+            "error", "invalid", "illegal", "blocked",
+            "security", "injection", "denied", "forbidden"
+        ]
+        
+        return any(keyword in result_str for keyword in error_keywords)
+
+
+class TestMultiStatementInjectionAPI:
+    """Test multi-statement SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_hidden_drop_after_select(self, mcp_client):
+        """Test DROP hidden after legitimate SELECT is blocked"""
+        payload = {"sql": "SELECT id, name FROM users WHERE status = 'active'; DROP TABLE audit_log; SELECT 1;"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Hidden DROP after SELECT", payload, result)
+        
+        assert self._is_dangerous_blocked(result), \
+            f"Hidden DROP statement should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_hidden_truncate_after_select(self, mcp_client):
+        """Test TRUNCATE hidden after SELECT is blocked"""
+        payload = {"sql": "SELECT 1; TRUNCATE TABLE users"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Hidden TRUNCATE after SELECT", payload, result)
+        
+        assert self._is_dangerous_blocked(result), \
+            f"Hidden TRUNCATE should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_hidden_grant_after_select(self, mcp_client):
+        """Test GRANT hidden after SELECT is blocked"""
+        payload = {"sql": "SELECT 1; GRANT ALL ON *.* TO 'hacker'@'%'"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Hidden GRANT after SELECT", payload, result)
+        
+        assert self._is_dangerous_blocked(result), \
+            f"Hidden GRANT should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_multiple_safe_selects_allowed(self, mcp_client):
+        """Test that multiple SELECT statements may be allowed"""
+        payload = {"sql": "SELECT 1; SELECT 2; SELECT 3;"}
+        result = await mcp_client.call_tool("exec_query", payload)
+        print_result("Multiple Safe SELECTs", payload, result)
+    
+    def _is_dangerous_blocked(self, result: dict) -> bool:
+        """Check if dangerous operation was blocked"""
+        if not result:
+            return True
+        
+        # Check for error
+        if "error" in result:
+            return True
+        
+        # Check result content for blocking indicators
+        result_str = json.dumps(result).lower()
+        block_indicators = [
+            "drop", "truncate", "grant", "revoke",
+            "blocked", "denied", "forbidden", "not allowed",
+            "security", "error"
+        ]
+        
+        return any(indicator in result_str for indicator in block_indicators)
+
+
+class TestADBCQueryInjectionAPI:
+    """Test ADBC query SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_exec_adbc_query_drop_injection(self, mcp_client):
+        """Test exec_adbc_query rejects DROP TABLE injection"""
+        payload = {"sql": "SELECT * FROM users; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("exec_adbc_query", payload)
+        print_result("ADBC DROP TABLE Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "ADBC DROP TABLE injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_adbc_query_delete_injection(self, mcp_client):
+        """Test exec_adbc_query rejects DELETE injection"""
+        payload = {"sql": "SELECT 1; DELETE FROM users; --"}
+        result = await mcp_client.call_tool("exec_adbc_query", payload)
+        print_result("ADBC DELETE Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "ADBC DELETE injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_exec_adbc_query_valid(self, mcp_client):
+        """Test exec_adbc_query allows valid queries"""
+        payload = {"sql": "SELECT 1 AS test"}
+        result = await mcp_client.call_tool("exec_adbc_query", payload)
+        print_result("ADBC Valid Query", payload, result)
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        if "error" in result:
+            return True
+        result_str = json.dumps(result).lower()
+        return any(kw in result_str for kw in ["error", "blocked", "invalid", "security", "injection"])
+
+
+class TestMetadataToolsInjectionAPI:
+    """Test metadata tools SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_get_db_table_list_db_injection(self, mcp_client):
+        """Test get_db_table_list rejects db_name injection"""
+        payload = {"db_name": "test'; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("get_db_table_list", payload)
+        print_result("get_db_table_list db_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_db_table_list_catalog_injection(self, mcp_client):
+        """Test get_db_table_list rejects catalog_name injection"""
+        payload = {"catalog_name": "internal`; SELECT * FROM mysql.user; --"}
+        result = await mcp_client.call_tool("get_db_table_list", payload)
+        print_result("get_db_table_list catalog_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "catalog_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_comment_injection(self, mcp_client):
+        """Test get_table_comment rejects table_name injection"""
+        payload = {"table_name": "users'; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("get_table_comment", payload)
+        print_result("get_table_comment table_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_column_comments_injection(self, mcp_client):
+        """Test get_table_column_comments rejects injection"""
+        payload = {"table_name": "users'; DROP TABLE users; --", "db_name": "test"}
+        result = await mcp_client.call_tool("get_table_column_comments", payload)
+        print_result("get_table_column_comments Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_indexes_injection(self, mcp_client):
+        """Test get_table_indexes rejects table_name injection"""
+        payload = {"table_name": "users; DROP TABLE users", "db_name": "test"}
+        result = await mcp_client.call_tool("get_table_indexes", payload)
+        print_result("get_table_indexes Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        if "error" in result:
+            return True
+        result_str = json.dumps(result).lower()
+        return any(kw in result_str for kw in ["error", "blocked", "invalid", "security", "injection"])
+
+
+class TestAnalyticsToolsInjectionAPI:
+    """Test analytics tools SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_analyze_columns_table_injection(self, mcp_client):
+        """Test analyze_columns rejects table_name injection"""
+        payload = {"table_name": "users'; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("analyze_columns", payload)
+        print_result("analyze_columns table_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_analyze_columns_db_injection(self, mcp_client):
+        """Test analyze_columns rejects db_name injection"""
+        payload = {"table_name": "users", "db_name": "test' OR '1'='1"}
+        result = await mcp_client.call_tool("analyze_columns", payload)
+        print_result("analyze_columns db_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_basic_info_injection(self, mcp_client):
+        """Test get_table_basic_info rejects injection"""
+        payload = {"table_name": "users; DROP TABLE audit_log"}
+        result = await mcp_client.call_tool("get_table_basic_info", payload)
+        print_result("get_table_basic_info Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_analyze_table_storage_injection(self, mcp_client):
+        """Test analyze_table_storage rejects injection"""
+        payload = {"table_name": "users`; SELECT * FROM sensitive; --"}
+        result = await mcp_client.call_tool("analyze_table_storage", payload)
+        print_result("analyze_table_storage Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_sql_explain_injection(self, mcp_client):
+        """Test get_sql_explain rejects SQL injection"""
+        payload = {"sql": "SELECT 1; DROP TABLE users; --"}
+        result = await mcp_client.call_tool("get_sql_explain", payload)
+        print_result("get_sql_explain SQL Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "SQL injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_sql_profile_injection(self, mcp_client):
+        """Test get_sql_profile rejects SQL injection"""
+        payload = {"sql": "SELECT 1; DELETE FROM audit_log; --"}
+        result = await mcp_client.call_tool("get_sql_profile", payload)
+        print_result("get_sql_profile SQL Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "SQL injection should be blocked"
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        if "error" in result:
+            return True
+        result_str = json.dumps(result).lower()
+        return any(kw in result_str for kw in ["error", "blocked", "invalid", "security", "injection"])
+
+
+class TestGovernanceToolsInjectionAPI:
+    """Test data governance tools SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_trace_column_lineage_table_injection(self, mcp_client):
+        """Test trace_column_lineage rejects table_name injection"""
+        payload = {"table_name": "users'; DROP TABLE users; --", "column_name": "id"}
+        result = await mcp_client.call_tool("trace_column_lineage", payload)
+        print_result("trace_column_lineage table_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_trace_column_lineage_column_injection(self, mcp_client):
+        """Test trace_column_lineage rejects column_name injection"""
+        payload = {"table_name": "users", "column_name": "id; DROP TABLE users"}
+        result = await mcp_client.call_tool("trace_column_lineage", payload)
+        print_result("trace_column_lineage column_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "column_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_monitor_data_freshness_injection(self, mcp_client):
+        """Test monitor_data_freshness rejects table_name injection"""
+        payload = {"table_name": "users`; SELECT * FROM passwords; --"}
+        result = await mcp_client.call_tool("monitor_data_freshness", payload)
+        print_result("monitor_data_freshness Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_analyze_data_access_patterns_injection(self, mcp_client):
+        """Test analyze_data_access_patterns rejects injection"""
+        payload = {"table_name": "users' UNION SELECT password FROM admin --"}
+        result = await mcp_client.call_tool("analyze_data_access_patterns", payload)
+        print_result("analyze_data_access_patterns Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        if "error" in result:
+            return True
+        result_str = json.dumps(result).lower()
+        return any(kw in result_str for kw in ["error", "blocked", "invalid", "security", "injection"])
+
+
+class TestPerformanceToolsInjectionAPI:
+    """Test performance analytics tools SQL injection prevention"""
+    
+    @pytest.fixture
+    async def mcp_client(self):
+        """Create MCP client instance"""
+        client = MCPClient()
+        yield client
+        await client.close()
+    
+    @pytest.mark.asyncio
+    async def test_analyze_slow_queries_db_injection(self, mcp_client):
+        """Test analyze_slow_queries_topn rejects db_name injection"""
+        payload = {"db_name": "test'; DROP TABLE audit_log; --"}
+        result = await mcp_client.call_tool("analyze_slow_queries_topn", payload)
+        print_result("analyze_slow_queries_topn db_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_analyze_resource_growth_db_injection(self, mcp_client):
+        """Test analyze_resource_growth_curves rejects db_name injection"""
+        payload = {"db_name": "test`; GRANT ALL ON *.* TO 'hacker'; --"}
+        result = await mcp_client.call_tool("analyze_resource_growth_curves", payload)
+        print_result("analyze_resource_growth_curves db_name Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "db_name injection should be blocked"
+    
+    @pytest.mark.asyncio
+    async def test_get_table_data_size_injection(self, mcp_client):
+        """Test get_table_data_size rejects table_name injection"""
+        payload = {"table_name": "users; TRUNCATE TABLE logs"}
+        result = await mcp_client.call_tool("get_table_data_size", payload)
+        print_result("get_table_data_size Injection", payload, result)
+        
+        assert self._is_blocked_or_error(result), \
+            "table_name injection should be blocked"
+    
+    def _is_blocked_or_error(self, result: dict) -> bool:
+        """Check if result indicates blocked or error"""
+        if not result:
+            return True
+        if "error" in result:
+            return True
+        result_str = json.dumps(result).lower()
+        return any(kw in result_str for kw in ["error", "blocked", "invalid", "security", "injection"])
+
+
+# Pytest configuration for async tests
+@pytest.fixture(scope="session")
+def event_loop():
+    """Create event loop for async tests"""
+    loop = asyncio.new_event_loop()
+    yield loop
+    loop.close()
+
+
+if __name__ == "__main__":
+    pytest.main([__file__, "-v", "--tb=short", "-x"])
+

test/test_config.json

@@ -44,17 +44,31 @@
     }
   },
   "expected_tools": [
+    "analyze_columns",
+    "analyze_data_access_patterns",
+    "analyze_data_flow_dependencies",
+    "analyze_resource_growth_curves",
+    "analyze_slow_queries_topn",
+    "analyze_table_storage",
+    "exec_adbc_query",
     "exec_query",
-    "get_db_list", 
+    "get_adbc_connection_info",
+    "get_catalog_list",
+    "get_db_list",
     "get_db_table_list",
-    "get_table_schema",
-    "get_table_comment",
-    "get_table_column_comments",
-    "get_table_indexes",
-    "column_analysis",
-    "performance_stats",
+    "get_memory_stats",
+    "get_monitoring_metrics",
     "get_recent_audit_logs",
-    "get_catalog_list"
+    "get_sql_explain",
+    "get_sql_profile",
+    "get_table_basic_info",
+    "get_table_column_comments",
+    "get_table_comment",
+    "get_table_data_size",
+    "get_table_indexes",
+    "get_table_schema",
+    "monitor_data_freshness",
+    "trace_column_lineage"
   ],
   "expected_resources": [
     "database",
@@ -66,4 +80,4 @@
     "data_analysis_helper",
     "schema_explorer"
   ]
-} 
+} 

test/test_config_loader.py

@@ -185,8 +185,9 @@ async def test_server_connectivity(transport: Optional[str] = None) -> bool:
                 logger.error(f"Connectivity test failed: {e}")
                 return False
         
-        result = await client.connect_and_run(test_connection)
-        return result
+        await client.connect_and_run(test_connection)
+        return True
+
     except Exception as e:
         logger.error(f"Failed to test server connectivity: {e}")
         return False
@@ -211,4 +212,4 @@ if __name__ == "__main__":
         stdio_ok = await test_server_connectivity("stdio")
         print(f"  Stdio connectivity: {'✓' if stdio_ok else '✗'}")
     
-    asyncio.run(main()) 
+    asyncio.run(main()) 

test/tools/test_tools_client_server.py

@@ -72,8 +72,7 @@ class TestToolsClientServer:
             
             return tools
         
-        result = await client.connect_and_run(test_callback)
-        assert len(result) > 0
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_call_tool_exec_query_via_client(self, client, test_config):
@@ -91,14 +90,13 @@ class TestToolsClientServer:
             assert "success" in result, "Result should contain 'success' field"
             
             if result["success"]:
-                assert "result" in result, "Successful result should contain 'result' field"
+                assert "data" in result, "Successful result should contain 'data' field"
             else:
                 assert "error" in result, "Failed result should contain 'error' field"
             
             return result
         
-        result = await client.connect_and_run(test_callback)
-        # Don't assert success=True as it depends on actual server state
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_call_tool_get_db_list_via_client(self, client, test_config):
@@ -115,8 +113,7 @@ class TestToolsClientServer:
             
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_call_tool_get_table_schema_via_client(self, client, test_config):
@@ -133,27 +130,7 @@ class TestToolsClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
-
-    @pytest.mark.asyncio
-    async def test_call_tool_performance_stats_via_client(self, client, test_config):
-        """Test calling performance_stats tool through client"""
-        if not test_config.is_performance_tests_enabled():
-            pytest.skip("Performance tests are disabled")
-        
-        async def test_callback(client_instance):
-            result = await client_instance.call_tool("performance_stats", {
-                "metric_type": "queries",
-                "time_range": "1h"
-            })
-            
-            # Verify result structure
-            assert "success" in result, "Result should contain 'success' field"
-            return result
-        
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_tool_error_handling_via_client(self, client, test_config):
@@ -168,8 +145,7 @@ class TestToolsClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_tool_with_auth_token_via_client(self, client, test_config):
@@ -188,5 +164,4 @@ class TestToolsClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result 
+        await client.connect_and_run(test_callback)

test/tools/test_tools_manager.py

@@ -36,11 +36,6 @@ class TestDorisToolsManager:
         from doris_mcp_server.utils.config import DatabaseConfig, SecurityConfig
         
         config = Mock(spec=DorisConfig)
-        config.doris_host = "localhost"
-        config.doris_port = 9030
-        config.doris_user = "test_user"
-        config.doris_password = "test_password"
-        config.doris_database = "test_db"
         
         # Add database config
         config.database = Mock(spec=DatabaseConfig)
@@ -50,7 +45,6 @@ class TestDorisToolsManager:
         config.database.password = "test_password"
         config.database.database = "test_db"
         config.database.health_check_interval = 60
-        config.database.min_connections = 5
         config.database.max_connections = 20
         config.database.connection_timeout = 30
         config.database.max_connection_age = 3600
@@ -235,62 +229,7 @@ class TestDorisToolsManager:
             elif "result" in result_data:
                 assert len(result_data["result"]) >= 0  # May be empty if no catalogs
 
-    @pytest.mark.asyncio
-    async def test_column_analysis_tool(self, tools_manager):
-        """Test column_analysis tool"""
-        with patch.object(tools_manager.query_executor, 'execute_query') as mock_execute:
-            # Mock basic analysis result
-            mock_execute.return_value = [
-                {
-                    "total_count": 1000,
-                    "null_count": 10,
-                    "distinct_count": 950,
-                    "min_value": 1,
-                    "max_value": 1000
-                }
-            ]
-            
-            arguments = {
-                "table_name": "users",
-                "column_name": "id",
-                "analysis_type": "basic"
-            }
-            
-            result = await tools_manager.call_tool("column_analysis", arguments)
-            result_data = json.loads(result) if isinstance(result, str) else result
-            
-            # Check if result has analysis field or result field
-            if "analysis" in result_data:
-                assert result_data["analysis"]["total_count"] == 1000
-            elif "result" in result_data:
-                assert "result" in result_data  # Just check result exists
 
-    @pytest.mark.asyncio
-    async def test_performance_stats_tool(self, tools_manager):
-        """Test performance_stats tool"""
-        with patch.object(tools_manager.query_executor, 'execute_query') as mock_execute:
-            mock_execute.return_value = [
-                {
-                    "query_count": 1500,
-                    "avg_execution_time": 0.25,
-                    "slow_query_count": 5,
-                    "error_count": 2
-                }
-            ]
-            
-            arguments = {
-                "metric_type": "queries",
-                "time_range": "1h"
-            }
-            
-            result = await tools_manager.call_tool("performance_stats", arguments)
-            result_data = json.loads(result) if isinstance(result, str) else result
-            
-            # Check if result has stats field or result field
-            if "stats" in result_data:
-                assert result_data["stats"]["query_count"] == 1500
-            elif "result" in result_data:
-                assert "result" in result_data  # Just check result exists
 
     @pytest.mark.asyncio
     async def test_invalid_tool_name(self, tools_manager):
@@ -328,4 +267,4 @@ class TestDorisToolsManager:
             
             # Required fields should be defined
             if 'required' in tool.inputSchema:
-                assert isinstance(tool.inputSchema['required'], list) 
+                assert isinstance(tool.inputSchema['required'], list) 

test/utils/test_db.py

@@ -0,0 +1,78 @@
+from unittest.mock import MagicMock
+import pytest
+
+from doris_mcp_server.utils.db import DorisConnection, DorisSessionCache
+
+
+@pytest.fixture
+def session_cache():
+    """Provides a DorisSessionCache instance with a mock connection manager."""
+    connection_manager = MagicMock()
+    cache = DorisSessionCache(connection_manager=connection_manager)
+    yield cache, connection_manager
+
+
+class TestDorisSessionCache:
+
+    def test_initialization(self, session_cache):
+        cache, _ = session_cache
+        assert cache.cache_system_session is True
+        assert cache.cache_user_session is False
+        assert not cache.cached
+
+    def test_should_cache(self, session_cache):
+        cache, _ = session_cache
+        assert cache._should_cache("query") is True
+        assert cache._should_cache("system") is True
+        assert cache._should_cache("user-test-session-id") is False
+
+        cache.cache_user_session = True
+        assert cache._should_cache("user-test-session-id") is True
+
+    def test_save_and_get_session(self, session_cache):
+        cache, _ = session_cache
+        mock_connection = MagicMock(spec=DorisConnection)
+        mock_connection.session_id = "query"
+
+        cache.save(mock_connection)
+        retrieved_conn = cache.get("query")
+        assert retrieved_conn is mock_connection
+
+        mock_user_connection = MagicMock(spec=DorisConnection)
+        mock_user_connection.session_id = "user-test-session-id"
+        cache.save(mock_user_connection)
+        assert cache.get("user-test-session-id") is None
+
+        cache.cache_user_session = True
+        cache.save(mock_user_connection)
+        retrieved_user_conn = cache.get("user-test-session-id")
+        assert retrieved_user_conn is mock_user_connection
+
+    def test_remove_session(self, session_cache):
+        cache, _ = session_cache
+        mock_connection = MagicMock(spec=DorisConnection)
+        mock_connection.session_id = "system"
+
+        cache.save(mock_connection)
+        assert cache.get("system") is not None
+
+        cache.remove("system")
+        assert cache.get("system") is None
+
+    def test_clear_cache(self, session_cache):
+        cache, connection_manager = session_cache
+        mock_conn1 = MagicMock(spec=DorisConnection)
+        mock_conn1.session_id = "query"
+        mock_conn2 = MagicMock(spec=DorisConnection)
+        mock_conn2.session_id = "system"
+
+        cache.save(mock_conn1)
+        cache.save(mock_conn2)
+        assert len(cache.cached) == 2
+
+        cache.clear()
+
+        assert not cache.cached
+        connection_manager.release_connection.assert_any_call("query", mock_conn1)
+        connection_manager.release_connection.assert_any_call("system", mock_conn2)
+        assert connection_manager.release_connection.call_count == 2

test/utils/test_query_executor.py

@@ -35,11 +35,6 @@ class TestDorisQueryExecutor:
         from doris_mcp_server.utils.config import DatabaseConfig, SecurityConfig
         
         config = Mock(spec=DorisConfig)
-        config.doris_host = "localhost"
-        config.doris_port = 9030
-        config.doris_user = "test_user"
-        config.doris_password = "test_password"
-        config.doris_database = "test_db"
         
         # Add database config
         config.database = Mock(spec=DatabaseConfig)
@@ -49,11 +44,17 @@ class TestDorisQueryExecutor:
         config.database.password = "test_password"
         config.database.database = "test_db"
         config.database.health_check_interval = 60
-        config.database.min_connections = 5
         config.database.max_connections = 20
         config.database.connection_timeout = 30
         config.database.max_connection_age = 3600
         
+        # Add security config
+        config.security = Mock(spec=SecurityConfig)
+        config.security.enable_masking = True
+        config.security.auth_type = "token"
+        config.security.token_secret = "test_secret"
+        config.security.token_expiry = 3600
+        
         return config
 
     @pytest.fixture
@@ -199,4 +200,74 @@ class TestDorisQueryExecutor:
             assert "success" in result
             if result["success"]:
                 assert "data" in result
-                assert "row_count" in result 
+                assert "row_count" in result 
+
+    @pytest.mark.asyncio
+    async def test_execute_multi_sql_statements(self, query_executor):
+        """Test execution of multiple SQL statements"""
+        from doris_mcp_server.utils.query_executor import QueryResult
+        
+        # Disable security check for this test
+        query_executor.connection_manager.config.security.enable_security_check = False
+        
+        with patch.object(query_executor, 'execute_query') as mock_execute:
+            # Mock results for three SQL statements
+            mock_execute.side_effect = [
+                QueryResult(
+                    data=[{"id": 1, "name": "张三"}],
+                    row_count=1,
+                    execution_time=0.1,
+                    sql="SELECT id, name FROM users WHERE id = 1",
+                    metadata={"columns": ["id", "name"]}
+                ),
+                QueryResult(
+                    data=[{"id": 2, "name": "李四"}],
+                    row_count=1,
+                    execution_time=0.12,
+                    sql="SELECT id, name FROM users WHERE id = 2",
+                    metadata={"columns": ["id", "name"]}
+                ),
+                QueryResult(
+                    data=[{"count": 100}],
+                    row_count=1,
+                    execution_time=0.08,
+                    sql="SELECT COUNT(*) as count FROM users",
+                    metadata={"columns": ["count"]}
+                )
+            ]
+            
+            # Execute multiple SQL statements separated by semicolons
+            multi_sql = """
+                SELECT id, name FROM users WHERE id = 1;
+                SELECT id, name FROM users WHERE id = 2;
+                SELECT COUNT(*) as count FROM users;
+            """
+            
+            result = await query_executor.execute_sql_for_mcp(multi_sql)
+            
+            # Verify the result structure for multiple statements
+            assert result["success"] is True
+            assert result["multiple_results"] is True
+            assert "results" in result
+            assert len(result["results"]) == 3
+            
+            # Verify first query result
+            assert result["results"][0]["data"] == [{"id": 1, "name": "张三"}]
+            assert result["results"][0]["row_count"] == 1
+            assert result["results"][0]["metadata"]["columns"] == ["id", "name"]
+            assert result["results"][0]["metadata"]["query"] == "SELECT id, name FROM users WHERE id = 1"
+            
+            # Verify second query result
+            assert result["results"][1]["data"] == [{"id": 2, "name": "李四"}]
+            assert result["results"][1]["row_count"] == 1
+            assert result["results"][1]["metadata"]["columns"] == ["id", "name"]
+            assert result["results"][1]["metadata"]["query"] == "SELECT id, name FROM users WHERE id = 2"
+            
+            # Verify third query result
+            assert result["results"][2]["data"] == [{"count": 100}]
+            assert result["results"][2]["row_count"] == 1
+            assert result["results"][2]["metadata"]["columns"] == ["count"]
+            assert result["results"][2]["metadata"]["query"] == "SELECT COUNT(*) as count FROM users"
+            
+            # Verify execute_query was called three times
+            assert mock_execute.call_count == 3

test/utils/test_query_executor_client_server.py

@@ -21,8 +21,6 @@ Tests the query execution functionality through actual MCP client-server communi
 Assumes the server is already running and configured properly
 """
 
-import asyncio
-import json
 import pytest
 import os
 import sys
@@ -66,14 +64,13 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             
             if result["success"]:
-                assert "result" in result, "Successful result should contain 'result' field"
+                assert "data" in result, "Successful result should contain 'data' field"
             else:
                 assert "error" in result, "Failed result should contain 'error' field"
             
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_show_databases_query_via_client(self, client, test_config):
@@ -87,8 +84,7 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_information_schema_query_via_client(self, client, test_config):
@@ -102,8 +98,7 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_query_with_max_rows_parameter_via_client(self, client, test_config):
@@ -118,8 +113,7 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_query_error_handling_via_client(self, client, test_config):
@@ -131,8 +125,7 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result
+        await client.connect_and_run(test_callback)
 
     @pytest.mark.asyncio
     async def test_query_with_auth_token_via_client(self, client, test_config):
@@ -152,5 +145,4 @@ class TestQueryExecutorClientServer:
             assert "success" in result, "Result should contain 'success' field"
             return result
         
-        result = await client.connect_and_run(test_callback)
-        assert "success" in result 
+        await client.connect_and_run(test_callback)

tokens.json

@@ -0,0 +1,64 @@
+{
+  "version": "1.0",
+  "description": "Doris MCP Server Token configuration file",
+  "created_at": "2025-09-01T00:00:00Z",
+  "tokens": [
+    {
+      "token_id": "admin-token",
+      "token": "doris_admin_token_123456",
+      "description": "Doris admin API access token",
+      "expires_hours": null,
+      "is_active": true,
+      "database_config": {
+        "host": "127.0.0.1",
+        "port": 9030,
+        "user": "root",
+        "password": "",
+        "database": "information_schema",
+        "charset": "UTF8",
+        "fe_http_port": 8030
+      }
+    },
+    {
+      "token_id": "analyst-token",
+      "token": "doris_analyst_token_123456",
+      "description": "Doris analyst API access token",
+      "expires_hours": 8760,
+      "is_active": true,
+      "database_config": {
+        "host": "127.0.0.1",
+        "port": 9030,
+        "user": "root",
+        "password": "",
+        "database": "information_schema",
+        "charset": "UTF8",
+        "fe_http_port": 8030
+      }
+    },
+    {
+      "token_id": "readonly-token",
+      "token": "doris_readonly_token_123456",
+      "description": "Doris readonly API access token",
+      "expires_hours": 4320,
+      "is_active": true,
+      "database_config": {
+        "host": "127.0.0.1",
+        "port": 9030,
+        "user": "root",
+        "password": "",
+        "database": "information_schema",
+        "charset": "UTF8",
+        "fe_http_port": 8030
+      }
+    }
+  ],
+  "notes": [
+    "The admin_token, analyst_token, readonly_token is default token,Please change the token before using in production!",
+    "The token_id is the key of the token,Please use the token_id to identify the token",
+    "The token is the value of the token,Please use the token to identify the token",
+    "The description is the description of the token,Please use the description to identify the token",
+    "The expires_hours is the expires hours of the token,Please use the expires_hours to identify the token",
+    "The is_active is the is active of the token,Please use the is_active to identify the token",
+    "The token_id, token, description, expires_hours, is_active is the metadata of the token,Please use the metadata to identify the token"
+  ]
+}

uv.lock

@@ -1,19 +1,3 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 version = 1
 revision = 1
 requires-python = ">=3.12"
@@ -22,6 +6,48 @@ resolution-markers = [
     "python_full_version < '3.13'",
 ]
 
+[[package]]
+name = "adbc-driver-flightsql"
+version = "1.7.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "adbc-driver-manager" },
+    { name = "importlib-resources" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/b8/d4/ebd3eed981c771565677084474cdf465141455b5deb1ca409c616609bfd7/adbc_driver_flightsql-1.7.0.tar.gz", hash = "sha256:5dca460a2c66e45b29208eaf41a7206f252177435fa48b16f19833b12586f7a0", size = 21247 }
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+]
+
+[[package]]
+name = "adbc-driver-manager"
+version = "1.7.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "typing-extensions" },
+]
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+    { url = "https://files.pythonhosted.org/packages/25/6e/9dfdb113294dcb24b4f53924cd4a9c9af3fbe45a9790c1327048df731246/adbc_driver_manager-1.7.0-cp313-cp313t-manylinux2014_x86_64.manylinux_2_17_x86_64.whl", hash = "sha256:4409ff53578e01842a8f57787ebfbfee790c1da01a6bd57fcb7701ed5d4dd4f7", size = 3016543 },
+]
+
 [[package]]
 name = "aiofiles"
 version = "24.1.0"
@@ -536,9 +562,11 @@ wheels = [
 
 [[package]]
 name = "doris-mcp-server"
-version = "0.3.0"
+version = "0.6.1"
 source = { editable = "." }
 dependencies = [
+    { name = "adbc-driver-flightsql" },
+    { name = "adbc-driver-manager" },
     { name = "aiofiles" },
     { name = "aiohttp" },
     { name = "aiomysql" },
@@ -555,6 +583,7 @@ dependencies = [
     { name = "pandas" },
     { name = "passlib", extra = ["bcrypt"] },
     { name = "prometheus-client" },
+    { name = "pyarrow" },
     { name = "pydantic" },
     { name = "pydantic-settings" },
     { name = "pyjwt" },
@@ -625,6 +654,8 @@ dev = [
 
 [package.metadata]
 requires-dist = [
+    { name = "adbc-driver-flightsql", specifier = ">=0.8.0" },
+    { name = "adbc-driver-manager", specifier = ">=0.8.0" },
     { name = "aiofiles", specifier = ">=23.0.0" },
     { name = "aiohttp", specifier = ">=3.9.0" },
     { name = "aiomysql", specifier = ">=0.2.0" },
@@ -642,7 +673,7 @@ requires-dist = [
     { name = "httpx", specifier = ">=0.26.0" },
     { name = "isort", marker = "extra == 'dev'", specifier = ">=5.13.0" },
     { name = "jaeger-client", marker = "extra == 'monitoring'", specifier = ">=4.8.0" },
-    { name = "mcp", specifier = ">=1.0.0" },
+    { name = "mcp", specifier = ">=1.8.0,<2.0.0" },
     { name = "mypy", marker = "extra == 'dev'", specifier = ">=1.8.0" },
     { name = "myst-parser", marker = "extra == 'dev'", specifier = ">=2.0.0" },
     { name = "myst-parser", marker = "extra == 'docs'", specifier = ">=2.0.0" },
@@ -656,6 +687,7 @@ requires-dist = [
     { name = "pre-commit", marker = "extra == 'dev'", specifier = ">=3.6.0" },
     { name = "prometheus-client", specifier = ">=0.19.0" },
     { name = "prometheus-client", marker = "extra == 'monitoring'", specifier = ">=0.19.0" },
+    { name = "pyarrow", specifier = ">=14.0.0" },
     { name = "pydantic", specifier = ">=2.5.0" },
     { name = "pydantic-settings", specifier = ">=2.1.0" },
     { name = "pyjwt", specifier = ">=2.8.0" },
@@ -948,6 +980,15 @@ wheels = [
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 ]
 
+[[package]]
+name = "importlib-resources"
+version = "6.5.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/cf/8c/f834fbf984f691b4f7ff60f50b514cc3de5cc08abfc3295564dd89c5e2e7/importlib_resources-6.5.2.tar.gz", hash = "sha256:185f87adef5bcc288449d98fb4fba07cea78bc036455dd44c5fc4a2fe78fed2c", size = 44693 }
+wheels = [
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+]
+
 [[package]]
 name = "iniconfig"
 version = "2.1.0"
@@ -1621,6 +1662,41 @@ wheels = [
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