rag-gateway.git

			@@ -1,4 +1,5 @@
			import json
			import re
			import uuid

			from fastapi import WebSocket, WebSocketDisconnect, APIRouter, Depends
			@@ -250,37 +251,52 @@
			await websocket.send_json(result)

			else:
			message_data = {}
			logger.error("---------------------excel_talk-----------------------------")
			excel_url = ""
			image_url = ""
			image_name = ""
			excel_name = ""
			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", "")
			e_name = data.get("excel_name", "")
			i_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}")
			if e_name:
			excel_url = build_file_url(e_name, 'excel')
			excel_name = e_name
			if i_name:
			image_url = build_file_url(i_name, 'image')
			image_name = i_name
			if data["type"] == "message":
			message_data = {
			"content": output,
			"excel_url": excel_url,
			"image_url": image_url,
			"image_name": image_name,
			"excel_name": excel_name,
			"sql": data.get("sql", ""),
			"code": data.get("code", ""),
			"e": data.get("e", ""),
			"role": "assistant"}

			# 发送结果给客户端
			data["type"] = "message"
			# data["type"] = "message"
			data["message"] = output
			data["excel_url"] = excel_url
			data["image_url"] = image_url
			await websocket.send_json(data)
			if message_data:
			try:
			SessionService(db).update_session(chat_id,message=message_data)
			except Exception as e:
			logger.error(f"Unexpected error when update_session: {e}")
			except Exception as e:
			logger.error(e)
			await websocket.send_json({"message": "出现错误！", "type": "error"})
			@@ -293,11 +309,15 @@
			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', [])
			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"})
			@@ -316,8 +336,8 @@
			# 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)
			# 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
			@@ -333,28 +353,51 @@
			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)
			# logger.error(data)

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

			result = {"message": answer_str, "type": "message"}
			elif data.get("event") == "message_end":
			result = {"message": answer_str, "type": "close"}
			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": data, "conversation_id": data.get("conversation_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)