mcp接口flask改成fastapi

This commit is contained in:
2025-10-21 09:34:16 +08:00
parent 6a9481b1f3
commit e57c7350fb

View File

@@ -13,8 +13,9 @@
# See the License for the specific language governing permissions and # See the License for the specific language governing permissions and
# limitations under the License. # limitations under the License.
# #
from flask import Response, request from typing import List, Optional, Dict, Any
from flask_login import current_user, login_required from fastapi import APIRouter, Depends, HTTPException, Query
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from api.db import VALID_MCP_SERVER_TYPES from api.db import VALID_MCP_SERVER_TYPES
from api.db.db_models import MCPServer from api.db.db_models import MCPServer
@@ -23,42 +24,161 @@ from api.db.services.user_service import TenantService
from api.settings import RetCode from api.settings import RetCode
from api.utils import get_uuid from api.utils import get_uuid
from api.utils.api_utils import get_data_error_result, get_json_result, server_error_response, validate_request, \ from api.utils.api_utils import get_data_error_result, get_json_result, server_error_response, \
get_mcp_tools get_mcp_tools
from api.utils.web_utils import get_float, safe_json_parse from api.utils.web_utils import get_float, safe_json_parse
from rag.utils.mcp_tool_call_conn import MCPToolCallSession, close_multiple_mcp_toolcall_sessions from rag.utils.mcp_tool_call_conn import MCPToolCallSession, close_multiple_mcp_toolcall_sessions
from pydantic import BaseModel
# Security
security = HTTPBearer()
@manager.route("/list", methods=["POST"]) # noqa: F821 # Pydantic models for request/response
@login_required class ListMCPRequest(BaseModel):
def list_mcp() -> Response: mcp_ids: List[str] = []
keywords = request.args.get("keywords", "")
page_number = int(request.args.get("page", 0)) class CreateMCPRequest(BaseModel):
items_per_page = int(request.args.get("page_size", 0)) name: str
orderby = request.args.get("orderby", "create_time") url: str
if request.args.get("desc", "true").lower() == "false": server_type: str
desc = False headers: Optional[Dict[str, Any]] = {}
variables: Optional[Dict[str, Any]] = {}
timeout: Optional[float] = 10
class UpdateMCPRequest(BaseModel):
mcp_id: str
name: Optional[str] = None
url: Optional[str] = None
server_type: Optional[str] = None
headers: Optional[Dict[str, Any]] = None
variables: Optional[Dict[str, Any]] = None
timeout: Optional[float] = None
class RemoveMCPRequest(BaseModel):
mcp_ids: List[str]
class ImportMCPRequest(BaseModel):
mcpServers: Dict[str, Dict[str, Any]]
timeout: Optional[float] = 10
class ExportMCPRequest(BaseModel):
mcp_ids: List[str]
class ListToolsRequest(BaseModel):
mcp_ids: List[str]
timeout: Optional[float] = 10
class TestToolRequest(BaseModel):
mcp_id: str
tool_name: str
arguments: Dict[str, Any]
timeout: Optional[float] = 10
class CacheToolsRequest(BaseModel):
mcp_id: str
tools: List[Dict[str, Any]]
class TestMCPRequest(BaseModel):
url: str
server_type: str
headers: Optional[Dict[str, Any]] = {}
variables: Optional[Dict[str, Any]] = {}
timeout: Optional[float] = 10
# Dependency injection
async def get_current_user(credentials: HTTPAuthorizationCredentials = Depends(security)):
"""获取当前用户"""
from api.db import StatusEnum
from api.db.services.user_service import UserService
from fastapi import HTTPException, status
import logging
try:
from itsdangerous.url_safe import URLSafeTimedSerializer as Serializer
except ImportError:
# 如果没有itsdangerous使用jwt作为替代
import jwt
Serializer = jwt
jwt = Serializer(secret_key=settings.SECRET_KEY)
authorization = credentials.credentials
if authorization:
try:
access_token = str(jwt.loads(authorization))
if not access_token or not access_token.strip():
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Authentication attempt with empty access token"
)
# Access tokens should be UUIDs (32 hex characters)
if len(access_token.strip()) < 32:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail=f"Authentication attempt with invalid token format: {len(access_token)} chars"
)
user = UserService.query(
access_token=access_token, status=StatusEnum.VALID.value
)
if user:
if not user[0].access_token or not user[0].access_token.strip():
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail=f"User {user[0].email} has empty access_token in database"
)
return user[0]
else: else:
desc = True raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Invalid access token"
)
except Exception as e:
logging.warning(f"load_user got exception {e}")
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Invalid access token"
)
else:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Authorization header required"
)
req = request.get_json() # Create router
mcp_ids = req.get("mcp_ids", []) router = APIRouter()
@router.post("/list")
async def list_mcp(
keywords: str = Query(""),
page: int = Query(0),
page_size: int = Query(0),
orderby: str = Query("create_time"),
desc: bool = Query(True),
req: ListMCPRequest = None,
current_user = Depends(get_current_user)
):
mcp_ids = req.mcp_ids if req else []
try: try:
servers = MCPServerService.get_servers(current_user.id, mcp_ids, 0, 0, orderby, desc, keywords) or [] servers = MCPServerService.get_servers(current_user.id, mcp_ids, 0, 0, orderby, desc, keywords) or []
total = len(servers) total = len(servers)
if page_number and items_per_page: if page and page_size:
servers = servers[(page_number - 1) * items_per_page : page_number * items_per_page] servers = servers[(page - 1) * page_size : page * page_size]
return get_json_result(data={"mcp_servers": servers, "total": total}) return get_json_result(data={"mcp_servers": servers, "total": total})
except Exception as e: except Exception as e:
return server_error_response(e) return server_error_response(e)
@manager.route("/detail", methods=["GET"]) # noqa: F821 @router.get("/detail")
@login_required async def detail(
def detail() -> Response: mcp_id: str = Query(...),
mcp_id = request.args["mcp_id"] current_user = Depends(get_current_user)
):
try: try:
mcp_server = MCPServerService.get_or_none(id=mcp_id, tenant_id=current_user.id) mcp_server = MCPServerService.get_or_none(id=mcp_id, tenant_id=current_user.id)
@@ -70,17 +190,16 @@ def detail() -> Response:
return server_error_response(e) return server_error_response(e)
@manager.route("/create", methods=["POST"]) # noqa: F821 @router.post("/create")
@login_required async def create(
@validate_request("name", "url", "server_type") req: CreateMCPRequest,
def create() -> Response: current_user = Depends(get_current_user)
req = request.get_json() ):
server_type = req.server_type
server_type = req.get("server_type", "")
if server_type not in VALID_MCP_SERVER_TYPES: if server_type not in VALID_MCP_SERVER_TYPES:
return get_data_error_result(message="Unsupported MCP server type.") return get_data_error_result(message="Unsupported MCP server type.")
server_name = req.get("name", "") server_name = req.name
if not server_name or len(server_name.encode("utf-8")) > 255: if not server_name or len(server_name.encode("utf-8")) > 255:
return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.") return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.")
@@ -88,20 +207,20 @@ def create() -> Response:
if e: if e:
return get_data_error_result(message="Duplicated MCP server name.") return get_data_error_result(message="Duplicated MCP server name.")
url = req.get("url", "") url = req.url
if not url: if not url:
return get_data_error_result(message="Invalid url.") return get_data_error_result(message="Invalid url.")
headers = safe_json_parse(req.get("headers", {})) headers = safe_json_parse(req.headers)
req["headers"] = headers variables = safe_json_parse(req.variables)
variables = safe_json_parse(req.get("variables", {}))
variables.pop("tools", None) variables.pop("tools", None)
timeout = get_float(req, "timeout", 10) timeout = req.timeout
try: try:
req["id"] = get_uuid() req_dict = req.dict()
req["tenant_id"] = current_user.id req_dict["id"] = get_uuid()
req_dict["tenant_id"] = current_user.id
e, _ = TenantService.get_by_id(current_user.id) e, _ = TenantService.get_by_id(current_user.id)
if not e: if not e:
@@ -115,49 +234,47 @@ def create() -> Response:
tools = server_tools[server_name] tools = server_tools[server_name]
tools = {tool["name"]: tool for tool in tools if isinstance(tool, dict) and "name" in tool} tools = {tool["name"]: tool for tool in tools if isinstance(tool, dict) and "name" in tool}
variables["tools"] = tools variables["tools"] = tools
req["variables"] = variables req_dict["variables"] = variables
if not MCPServerService.insert(**req): if not MCPServerService.insert(**req_dict):
return get_data_error_result("Failed to create MCP server.") return get_data_error_result("Failed to create MCP server.")
return get_json_result(data=req) return get_json_result(data=req_dict)
except Exception as e: except Exception as e:
return server_error_response(e) return server_error_response(e)
@manager.route("/update", methods=["POST"]) # noqa: F821 @router.post("/update")
@login_required async def update(
@validate_request("mcp_id") req: UpdateMCPRequest,
def update() -> Response: current_user = Depends(get_current_user)
req = request.get_json() ):
mcp_id = req.mcp_id
mcp_id = req.get("mcp_id", "")
e, mcp_server = MCPServerService.get_by_id(mcp_id) e, mcp_server = MCPServerService.get_by_id(mcp_id)
if not e or mcp_server.tenant_id != current_user.id: if not e or mcp_server.tenant_id != current_user.id:
return get_data_error_result(message=f"Cannot find MCP server {mcp_id} for user {current_user.id}") return get_data_error_result(message=f"Cannot find MCP server {mcp_id} for user {current_user.id}")
server_type = req.get("server_type", mcp_server.server_type) server_type = req.server_type if req.server_type is not None else mcp_server.server_type
if server_type and server_type not in VALID_MCP_SERVER_TYPES: if server_type and server_type not in VALID_MCP_SERVER_TYPES:
return get_data_error_result(message="Unsupported MCP server type.") return get_data_error_result(message="Unsupported MCP server type.")
server_name = req.get("name", mcp_server.name) server_name = req.name if req.name is not None else mcp_server.name
if server_name and len(server_name.encode("utf-8")) > 255: if server_name and len(server_name.encode("utf-8")) > 255:
return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.") return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.")
url = req.get("url", mcp_server.url) url = req.url if req.url is not None else mcp_server.url
if not url: if not url:
return get_data_error_result(message="Invalid url.") return get_data_error_result(message="Invalid url.")
headers = safe_json_parse(req.get("headers", mcp_server.headers)) headers = safe_json_parse(req.headers if req.headers is not None else mcp_server.headers)
req["headers"] = headers variables = safe_json_parse(req.variables if req.variables is not None else mcp_server.variables)
variables = safe_json_parse(req.get("variables", mcp_server.variables))
variables.pop("tools", None) variables.pop("tools", None)
timeout = get_float(req, "timeout", 10) timeout = req.timeout if req.timeout is not None else 10
try: try:
req["tenant_id"] = current_user.id req_dict = req.dict(exclude_unset=True)
req.pop("mcp_id", None) req_dict["tenant_id"] = current_user.id
req["id"] = mcp_id req_dict.pop("mcp_id", None)
req_dict["id"] = mcp_id
mcp_server = MCPServer(id=server_name, name=server_name, url=url, server_type=server_type, variables=variables, headers=headers) mcp_server = MCPServer(id=server_name, name=server_name, url=url, server_type=server_type, variables=variables, headers=headers)
server_tools, err_message = get_mcp_tools([mcp_server], timeout) server_tools, err_message = get_mcp_tools([mcp_server], timeout)
@@ -167,12 +284,12 @@ def update() -> Response:
tools = server_tools[server_name] tools = server_tools[server_name]
tools = {tool["name"]: tool for tool in tools if isinstance(tool, dict) and "name" in tool} tools = {tool["name"]: tool for tool in tools if isinstance(tool, dict) and "name" in tool}
variables["tools"] = tools variables["tools"] = tools
req["variables"] = variables req_dict["variables"] = variables
if not MCPServerService.filter_update([MCPServer.id == mcp_id, MCPServer.tenant_id == current_user.id], req): if not MCPServerService.filter_update([MCPServer.id == mcp_id, MCPServer.tenant_id == current_user.id], req_dict):
return get_data_error_result(message="Failed to updated MCP server.") return get_data_error_result(message="Failed to updated MCP server.")
e, updated_mcp = MCPServerService.get_by_id(req["id"]) e, updated_mcp = MCPServerService.get_by_id(req_dict["id"])
if not e: if not e:
return get_data_error_result(message="Failed to fetch updated MCP server.") return get_data_error_result(message="Failed to fetch updated MCP server.")