rag-gateway.git

			@@ -14,6 +14,7 @@
			from app.models.user_model import UserModel
			from app.service.dialog import update_session_history
			from app.service.basic import BasicService
			from app.service.difyService import DifyService
			from app.service.ragflow import RagflowService
			from app.service.service_token import get_bisheng_token, get_ragflow_token
			from app.service.session import SessionService
			@@ -49,7 +50,6 @@
			try:
			async def forward_to_ragflow():
			while True:
			is_new = False
			message = await websocket.receive_json()
			print(f"Received from client {chat_id}: {message}")
			chat_history = message.get('chatHistory', [])
			@@ -57,7 +57,6 @@
			if len(chat_history) == 0:
			chat_history = await ragflow_service.get_session_history(token, chat_id)
			if len(chat_history) == 0:
			is_new = True
			chat_history = await ragflow_service.set_session(token, agent_id,
			message, chat_id, True)
			# print("chat_history------------------------", chat_history)
			@@ -103,8 +102,12 @@
			result = {"message": f"内部错误： {e2}", "type": "close"}
			await websocket.send_json(result)
			print(f"Error process message of ragflow: {e2}")
			dialog_chat_history = await ragflow_service.get_session_history(token, chat_id, 1)
			await update_session_history(db, dialog_chat_history, current_user.id, is_new)
			try:
			dialog_chat_history = await ragflow_service.get_session_history(token, chat_id, 1)
			await update_session_history(db, dialog_chat_history, current_user.id)
			except Exception as e:
			logger.error(e)
			logger.error("-----------------保存ragflow的历史会话异常-----------------")

			# 启动任务处理客户端消息
			tasks = [
			@@ -231,14 +234,14 @@
			excel_url = None
			if file_name:
			excel_url = f"/api/files/download/?agent_id=basic_question_talk&file_id={file_name}&file_type=word"
			result = {"message": output, "type": "message", "file_url": excel_url}
			result = {"message": output, "type": "message", "file_url": excel_url, "file_name":file_name}
			try:
			SessionService(db).update_session(chat_id,
			message={"role": "assistant", "content": result})
			except Exception as e:
			logger.error(e)
			logger.error("-----------------返回数据--------------------")
			await websocket.send_json(result \| data)
			await websocket.send_json(result)
			except Exception as e2:

			result = {"message": f"内部错误： {e2}", "type": "close"}
			@@ -259,10 +262,19 @@
			f"&file_type={file_type}")
			excel_url = build_file_url(excel_name, 'excel')
			image_url = build_file_url(image_name, 'image')
			try:
			SessionService(db).update_session(chat_id, message={"content": output, "role": "assistant"})
			except Exception as e:
			logger.error(f"Unexpected error when update_session: {e}")
			if excel_url or data.get("e", ""):
			try:
			SessionService(db).update_session(chat_id,
			message={
			"content": output,
			"excel_url": excel_url,
			"image_url": image_url,
			"sql": data.get("sql", ""),
			"code": data.get("code", ""),
			"e": data.get("e", ""),
			"role": "assistant"})
			except Exception as e:
			logger.error(f"Unexpected error when update_session: {e}")
			# 发送结果给客户端
			data["type"] = "message"
			data["message"] = output
			@@ -275,6 +287,118 @@
			finally:
			await websocket.close()
			print(f"Client {agent_id} disconnected")
			if agent_type == AgentType.DIFY:
			dify_service = DifyService(settings.dify_base_url)
			# token = get_dify_token(db, current_user.id)
			token = settings.dify_api_token
			try:
			async def forward_to_dify():
			while True:
			conversation_id = ""
			receive_message = await websocket.receive_json()
			print(f"Received from client {chat_id}: {receive_message}")
			upload_file_id = receive_message.get('upload_file_id', "")
			question = receive_message.get('message', "")
			if not question and not image_url:
			await websocket.send_json({"message": "Invalid request", "type": "error"})
			continue
			try:
			session = SessionService(db).create_session(
			chat_id,
			question,
			agent_id,
			AgentType.DIFY,
			current_user.id
			)
			conversation_id = session.conversation_id
			except Exception as e:
			logger.error(e)
			# complete_response = ""
			answer_str = ""
			async for rag_response in dify_service.chat(token, current_user.id, question, upload_file_id, conversation_id):
			# print("=============================================")
			# print(rag_response)
			try:
			if rag_response[:5] == "data:":
			# 如果是，则截取掉前5个字符，并去除首尾空白符
			complete_response = rag_response[5:].strip()
			else:
			# 否则，保持原样
			complete_response = rag_response
			# complete_response += text
			try:
			data = json.loads(complete_response)
			complete_response = ""
			# data = json_data.get("data")
			if data.get("event") == "agent_message":# "event": "message_end"
			if "answer" not in data or not data["answer"]: # 信息过滤
			logger.error("非法数据--------------------")
			# logger.error(data)

			continue
			else: # 正常输出
			answer = data.get("answer", "")
			if isinstance(answer, str):

			answer_str += answer

			elif isinstance(answer, dict):
			logger.error("未知数据体：0---------------------------------")
			logger.error(answer)
			answer_str += answer.get("action_input", "")

			result = {"message": answer_str, "type": "message"}
			elif data.get("event") == "message_end":
			message_files = []
			res_msg = await dify_service.get_session_history(token, data.get("conversation_id"), str(current_user.id))
			if len(res_msg) > 0:
			message_files = res_msg[0].get("message_files")

			result = {"message": answer_str, "type": "close", "message_files": message_files}
			try:
			SessionService(db).update_session(chat_id,
			message={"role": "assistant", "content": {"answer":answer_str, "images":[i.get("url") for i in message_files]}},conversation_id=data.get("conversation_id"))
			except Exception as e:
			logger.error("保存dify的会话异常！")
			logger.error(e)
			elif data.get("event") == "message_file":

			url = data.get("url", "")
			result = {"message": url, "type": "image"}
			else:
			continue
			await websocket.send_json(result)
			complete_response = ""
			except json.JSONDecodeError as e:
			print(f"Error decoding JSON: {e}")
			# print(f"Response text: {text}")
			except Exception as e2:
			result = {"message": f"内部错误： {e2}", "type": "close"}
			await websocket.send_json(result)
			print(f"Error process message of ragflow: {e2}")


			# 启动任务处理客户端消息
			tasks = [
			asyncio.create_task(forward_to_dify())
			]
			await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
			except WebSocketDisconnect as e1:
			print(f"Client {chat_id} disconnected: {e1}")
			await websocket.close()
			except Exception as e:
			print(f"Exception occurred: {e}")

			finally:
			print("Cleaning up resources of ragflow")
			# 取消所有任务
			for task in tasks:
			if not task.done():
			task.cancel()
			try:
			await task
			except asyncio.CancelledError:
			pass
			else:
			ret = {"message": "Agent not found", "type": "close"}
			await websocket.send_json(ret)