将flask改成fastapi

intergrations/chatgpt-on-wechat/plugins/ragflow_chat.py

@@ -0,0 +1,127 @@
+#
+#  Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed 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.
+#
+
+import logging
+import requests
+from bridge.context import ContextType  # Import Context, ContextType
+from bridge.reply import Reply, ReplyType  # Import Reply, ReplyType
+from plugins import Plugin, register  # Import Plugin and register
+from plugins.event import Event, EventContext, EventAction  # Import event-related classes
+
+@register(name="RAGFlowChat", desc="Use RAGFlow API to chat", version="1.0", author="Your Name")
+class RAGFlowChat(Plugin):
+    def __init__(self):
+        super().__init__()
+        # Load plugin configuration
+        self.cfg = self.load_config()
+        # Bind event handling function
+        self.handlers[Event.ON_HANDLE_CONTEXT] = self.on_handle_context
+        # Store conversation_id for each user
+        self.conversations = {}
+        logging.info("[RAGFlowChat] Plugin initialized")
+
+    def on_handle_context(self, e_context: EventContext):
+        context = e_context['context']
+        if context.type != ContextType.TEXT:
+            return  # Only process text messages
+
+        user_input = context.content.strip()
+        session_id = context['session_id']
+
+        # Call RAGFlow API to get a reply
+        reply_text = self.get_ragflow_reply(user_input, session_id)
+        if reply_text:
+            reply = Reply()
+            reply.type = ReplyType.TEXT
+            reply.content = reply_text
+            e_context['reply'] = reply
+            e_context.action = EventAction.BREAK_PASS  # Skip the default processing logic
+        else:
+            # If no reply is received, pass to the next plugin or default logic
+            e_context.action = EventAction.CONTINUE
+
+    def get_ragflow_reply(self, user_input, session_id):
+        # Get API_KEY and host address from the configuration
+        api_key = self.cfg.get("api_key")
+        host_address = self.cfg.get("host_address")
+        user_id = session_id  # Use session_id as user_id
+
+        if not api_key or not host_address:
+            logging.error("[RAGFlowChat] Missing configuration")
+            return "The plugin configuration is incomplete. Please check the configuration."
+
+        headers = {
+            "Authorization": f"Bearer {api_key}",
+            "Content-Type": "application/json"
+        }
+
+        # Step 1: Get or create conversation_id
+        conversation_id = self.conversations.get(user_id)
+        if not conversation_id:
+            # Create a new conversation
+            url_new_conversation = f"http://{host_address}/v1/api/new_conversation"
+            params_new_conversation = {
+                "user_id": user_id
+            }
+            try:
+                response = requests.get(url_new_conversation, headers=headers, params=params_new_conversation)
+                logging.debug(f"[RAGFlowChat] New conversation response: {response.text}")
+                if response.status_code == 200:
+                    data = response.json()
+                    if data.get("code") == 0:
+                        conversation_id = data["data"]["id"]
+                        self.conversations[user_id] = conversation_id
+                    else:
+                        logging.error(f"[RAGFlowChat] Failed to create conversation: {data.get('message')}")
+                        return f"Sorry, unable to create a conversation: {data.get('message')}"
+                else:
+                    logging.error(f"[RAGFlowChat] HTTP error when creating conversation: {response.status_code}")
+                    return f"Sorry, unable to connect to RAGFlow API (create conversation). HTTP status code: {response.status_code}"
+            except Exception as e:
+                logging.exception("[RAGFlowChat] Exception when creating conversation")
+                return f"Sorry, an internal error occurred: {str(e)}"
+
+        # Step 2: Send the message and get a reply
+        url_completion = f"http://{host_address}/v1/api/completion"
+        payload_completion = {
+            "conversation_id": conversation_id,
+            "messages": [
+                {
+                    "role": "user",
+                    "content": user_input
+                }
+            ],
+            "quote": False,
+            "stream": False
+        }
+
+        try:
+            response = requests.post(url_completion, headers=headers, json=payload_completion)
+            logging.debug(f"[RAGFlowChat] Completion response: {response.text}")
+            if response.status_code == 200:
+                data = response.json()
+                if data.get("code") == 0:
+                    answer = data["data"]["answer"]
+                    return answer
+                else:
+                    logging.error(f"[RAGFlowChat] Failed to get answer: {data.get('message')}")
+                    return f"Sorry, unable to get a reply: {data.get('message')}"
+            else:
+                logging.error(f"[RAGFlowChat] HTTP error when getting answer: {response.status_code}")
+                return f"Sorry, unable to connect to RAGFlow API (get reply). HTTP status code: {response.status_code}"
+        except Exception as e:
+            logging.exception("[RAGFlowChat] Exception when getting answer")
+            return f"Sorry, an internal error occurred: {str(e)}"