rag-gateway.git

			@@ -1,17 +1,24 @@
			import json
			import re
			import uuid

			from fastapi import WebSocket, WebSocketDisconnect, APIRouter, Depends
			import asyncio
			import websockets
			from sqlalchemy.orm import Session

			from Log import logger
			from app.api import get_current_user_websocket
			from app.config.config import settings
			from app.models.agent_model import AgentModel, AgentType
			from app.models.base_model import get_db
			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.token import get_bisheng_token, get_ragflow_token
			from app.service.service_token import get_bisheng_token, get_ragflow_token
			from app.service.session import SessionService

			router = APIRouter()

			@@ -23,6 +30,7 @@
			chat_id: str,
			current_user: UserModel = Depends(get_current_user_websocket),
			db: Session = Depends(get_db)):
			tasks = []
			await websocket.accept()
			print(f"Client {agent_id} connected")

			@@ -38,7 +46,7 @@
			return

			if agent_type == AgentType.RAGFLOW:
			ragflow_service = RagflowService(settings.ragflow_base_url)
			ragflow_service = RagflowService(settings.fwr_base_url)
			token = get_ragflow_token(db, current_user.id)
			try:
			async def forward_to_ragflow():
			@@ -52,6 +60,7 @@
			if len(chat_history) == 0:
			chat_history = await ragflow_service.set_session(token, agent_id,
			message, chat_id, True)
			# print("chat_history------------------------", chat_history)
			if len(chat_history) == 0:
			result = {"message": "内部错误：创建会话失败", "type": "close"}
			await websocket.send_json(result)
			@@ -63,17 +72,18 @@
			"doc_ids": message.get("doc_ids", []),
			"role": "user"
			})
			complete_response = ""
			async for rag_response in ragflow_service.chat(token, chat_id, chat_history):
			try:
			print(f"Received from ragflow: {rag_response}")
			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
			text = rag_response[5:].strip()
			else:
			# 否则，保持原样
			text = rag_response
			complete_response += text
			try:
			json_data = json.loads(text)
			json_data = json.loads(complete_response)
			data = json_data.get("data")
			if data is True: # 完成输出
			result = {"message": "", "type": "close"}
			@@ -82,27 +92,49 @@
			result = {"message": "内部错误：" + answer, "type": "message"}
			else: # 正常输出
			answer = data.get("answer", "")
			result = {"message": answer, "type": "message"}
			except json.JSONDecodeError:
			result = {"message": text, "type": "message"}
			reference = data.get("reference", {})
			result = {"message": answer, "type": "message", "reference": reference}
			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"Forwarded to client {chat_id}: {result}")
			except Exception as e:
			result = {"message": f"内部错误： {e}", "type": "close"}
			await websocket.send_json(result)
			print(f"Error process message of ragflow: {e}")
			print(f"Error process message of ragflow: {e2}")
			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 = [
			asyncio.create_task(forward_to_ragflow())
			]
			await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
			except WebSocketDisconnect:
			print(f"Client {chat_id} disconnected")
			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

			elif agent_type == AgentType.BISHENG:
			token = get_bisheng_token(db, current_user.id)
			service_uri = f"{settings.bisheng_websocket_url}/api/v1/assistant/chat/{agent_id}?t=&chat_id={chat_id}"
			service_uri = f"{settings.sgb_websocket_url}/api/v1/assistant/chat/{agent_id}?t=&chat_id={chat_id}"
			headers = {'cookie': f"access_token_cookie={token};"}

			async with websockets.connect(service_uri, extra_headers=headers) as service_websocket:
			@@ -155,8 +187,238 @@
			except asyncio.CancelledError:
			pass

			except WebSocketDisconnect:
			print(f"Client {chat_id} disconnected")
			except WebSocketDisconnect as e:
			print(f"WebSocket connection closed with code {e.code}: {e.reason}")
			await websocket.close()
			await service_websocket.close()
			except Exception as e:
			print(f"Exception occurred: {e}")

			finally:
			print("Cleaning up resources of bisheng")
			# 取消所有任务
			for task in tasks:
			if not task.done():
			task.cancel()
			try:
			await task
			except asyncio.CancelledError:
			pass
			elif agent_type == AgentType.BASIC:
			try:
			service = BasicService(base_url=settings.basic_base_url)
			while True:
			# 接收前端消息
			message = await websocket.receive_json()
			question = message.get("message")
			try:
			SessionService(db).create_session(
			chat_id,
			question,
			agent_id,
			AgentType.BASIC,
			current_user.id
			)
			except Exception as e:
			logger.error(e)
			if not question:
			await websocket.send_json({"message": "Invalid request", "type": "error"})
			continue
			logger.error(agent.type)
			if agent.type == "questionTalk":

			try:
			data = await service.questions_talk(question, chat_id)
			output = data.get("output", "")
			file_name = data.get("filename", "")

			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, "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)
			except Exception as e2:

			result = {"message": f"内部错误： {e2}", "type": "close"}
			logger.error(str(e2))
			logger.error(f"Error process message of basic chuti agent: {e2}")
			await websocket.send_json(result)

			else:
			logger.error("---------------------excel_talk-----------------------------")
			async for data in service.excel_talk(question, chat_id):
			logger.error(data)
			output = data.get("output", "")
			excel_name = data.get("excel_name", "")
			image_name = data.get("image_name", "")

			def build_file_url(name, file_type):
			if not name:
			return None
			return (f"/api/files/download/?agent_id={agent_id}&file_id={name}"
			f"&file_type={file_type}")
			excel_url = build_file_url(excel_name, 'excel')
			image_url = build_file_url(image_name, 'image')
			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
			data["excel_url"] = excel_url
			data["image_url"] = image_url
			await websocket.send_json(data)
			except Exception as e:
			logger.error(e)
			await websocket.send_json({"message": "出现错误！", "type": "error"})
			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:
			image_list = []
			is_image = False
			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):
			if "![](https://res.stepfun.com/" in answer and image_list:
			is_image = True
			pattern = r'!\[\] *\(https://res\.stepfun\.com/image_gen/[^)]+\)'
			url_image = image_list.pop()
			new_answer = re.sub(pattern, url_image, answer)
			answer_str += new_answer
			else:
			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":
			images_url = []
			# 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[-1].get("message_files")
			# for msg_file in message_files:
			# await dify_service.save_images(msg_file.get("url"), msg_file.get("id")+".png")
			# images_url.append(msg_file.get("id"))
			# result = {"message": answer_str, "type": "close"} # , "message_files": images_url
			if image_list and not is_image:
			answer_str += image_list[-1]
			result = {"message": answer_str,
			"type": "close"} # , "message_files": images_url
			try:
			SessionService(db).update_session(chat_id,
			message={"role": "assistant", "content": {"answer":answer_str, "images":images_url}},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":
			await dify_service.save_images(data.get("url"), data.get("id") + ".png")
			image_list.append(f"![](/api/files/image/{data.get('id')})")
			# result = {"message": answer_str, "type": "message"}
			continue
			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)