From 28f41fceef54144cf87eaedd18d09a5a8b9cd5e1 Mon Sep 17 00:00:00 2001
From: zhaoqingang <zhaoqg0118@163.com>
Date: 星期三, 27 十一月 2024 09:40:58 +0800
Subject: [PATCH] dify 多次对话问题

---
 app/images/cbaa6dd5-1408-4914-b73b-53fcaaa1dfd1.png |    0 
 app/api/chat.py                                     |   44 ++++++++++++++++------
 main.py                                             |    2 +
 app/images/__init__.py                              |    0 
 app/service/basic.py                                |    6 ++
 app/service/difyService.py                          |   22 ++++++++--
 app/api/files.py                                    |   19 ++++++++-
 7 files changed, 73 insertions(+), 20 deletions(-)

diff --git a/app/api/chat.py b/app/api/chat.py
index cd5c060..7e85a8e 100644
--- a/app/api/chat.py
+++ b/app/api/chat.py
@@ -1,4 +1,5 @@
 import json
+import re
 import uuid
 
 from fastapi import WebSocket, WebSocketDisconnect, APIRouter, Depends
@@ -250,7 +251,9 @@
                         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", "")
@@ -293,7 +296,11 @@
         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}")
@@ -339,8 +346,14 @@
                                     else:  # 姝e父杈撳嚭
                                         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("鏈煡鏁版嵁浣擄細0---------------------------------")
@@ -349,22 +362,29 @@
 
                                         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}
+                                    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":[i.get("url") for i in message_files]}},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("淇濆瓨dify鐨勪細璇濆紓甯革紒")
                                         logger.error(e)
                                 elif data.get("event") == "message_file":
-
-                                    url = data.get("url", "")
-                                    result = {"message": url, "type": "image"}
+                                    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)
diff --git a/app/api/files.py b/app/api/files.py
index 7df40e1..2189f94 100644
--- a/app/api/files.py
+++ b/app/api/files.py
@@ -75,7 +75,7 @@
         if agent_id == "basic_excel_talk":
             # 澶勭悊鍗曚釜鏂囦欢鐨勬儏鍐�
             file_list = file
-            if len(file) == 1 and agent.agent_type != AgentType.BASIC:
+            if len(file) == 1:  # and agent.agent_type != AgentType.BASIC
                 file_list = [file[0]]  # 濡傛灉鍙湁涓�涓枃浠讹紝纭繚瀹冩槸涓�涓垪琛�
             service = BasicService(base_url=settings.basic_base_url)
             # 閬嶅巻file_list锛屽瓨鍒癴iles 鍒楄〃涓�
@@ -188,4 +188,19 @@
             headers={"Content-Disposition": f"attachment; filename={filename}"}
         )
     else:
-        return Response(code=400, msg="Unsupported file type")
\ No newline at end of file
+        return Response(code=400, msg="Unsupported file type")
+
+
+@router.get("/image/{imageId}", response_model=Response)
+async def download_image_file(imageId: str, db=Depends(get_db)):
+    file_path = f"app/images/{imageId}.png"
+
+    def generate():
+        with open(file_path, "rb") as file:
+            while True:
+                data = file.read(1048576)  # 璇诲彇1MB
+                if not data:
+                    break
+                yield data
+
+    return StreamingResponse(generate(), media_type="application/octet-stream")
\ No newline at end of file
diff --git a/app/images/__init__.py b/app/images/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/app/images/__init__.py
diff --git a/app/images/cbaa6dd5-1408-4914-b73b-53fcaaa1dfd1.png b/app/images/cbaa6dd5-1408-4914-b73b-53fcaaa1dfd1.png
new file mode 100644
index 0000000..8455366
--- /dev/null
+++ b/app/images/cbaa6dd5-1408-4914-b73b-53fcaaa1dfd1.png
Binary files differ
diff --git a/app/service/basic.py b/app/service/basic.py
index 26c15c1..b3ad295 100644
--- a/app/service/basic.py
+++ b/app/service/basic.py
@@ -13,7 +13,9 @@
     def _check_response(self, response: httpx.Response):
         """妫�鏌ュ搷搴斿苟澶勭悊閿欒"""
         if response.status_code not in [200, 201]:
-            raise Exception(f"Failed to fetch data from API: {response.text}")
+            # raise Exception(f"Failed to fetch data from API: {response.status_code}")
+            logger.error(f"Failed to fetch data from API:")
+            logger.error(response.status_code)
         response_data = response.json()
         return response_data
 
@@ -73,6 +75,8 @@
                         answer = json.loads(decoded_line)
                         yield answer
                     except GeneratorExit as e:
+                        logger.error("------------except GeneratorExit as e:---------------------")
+                        logger.error(e)
                         print(e)
                         yield {"message": "鍐呴儴閿欒", "type": "close"}
                     finally:
diff --git a/app/service/difyService.py b/app/service/difyService.py
index 9aee918..78daa44 100644
--- a/app/service/difyService.py
+++ b/app/service/difyService.py
@@ -6,7 +6,6 @@
 from fastapi import HTTPException
 from starlette import status
 
-from Log import logger
 from app.config.config import settings
 from app.utils.rsa_crypto import RagflowCrypto
 
@@ -83,7 +82,7 @@
             "inputs": {},
             "query": message,
             "response_mode": "streaming",
-            "conversation_id": "",
+            "conversation_id": conversation_id,
             "user": str(user_id),
             "files": files
         }
@@ -141,14 +140,27 @@
 
             return data
 
+    async def save_images(self, url: str, filename: str):
+        url = f"{self.base_url}{url}"
+
+        async with httpx.AsyncClient() as client:
+            response = await client.get(url)
+
+            response.raise_for_status()
+
+            # 鎵撳紑涓�涓枃浠剁敤浜庡啓鍏�
+            with open(f"app/images/{filename}", 'wb') as f:
+                # 鍐欏叆璇锋眰鐨勫唴瀹�
+                f.write(response.content)
+
 
 
 
 if __name__ == "__main__":
     async def a():
-        a = DifyService("http://192.168.20.119:11080")
-        b = await a.get_knowledge_list("ImY3ZTZlZWQwYTY2NTExZWY5ZmFiMDI0MmFjMTMwMDA2Ig.Zzxwmw.uI_HAWzOkipQuga1aeQtoeIc3IM", 1,
-                                 10)
+        a = DifyService("http://192.168.20.116")
+        b = await a.get_session_history("app-YmOAMDsPpDDlqryMHnc9TzTO", "f94c6328-8ff0-4713-af3f-e823d547682d",
+                                 "63")
         print(b)
 
     import asyncio
diff --git a/main.py b/main.py
index 2af3a01..f07896a 100644
--- a/main.py
+++ b/main.py
@@ -2,6 +2,7 @@
 # from apscheduler.schedulers.background import BackgroundScheduler
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from starlette.staticfiles import StaticFiles
 
 from app.api.auth import router as auth_router
 from app.api.canvas import canvas_router
@@ -71,6 +72,7 @@
 app.include_router(dialog_router, prefix='/api/dialog', tags=["dialog"])
 app.include_router(canvas_router, prefix='/api/canvas', tags=["canvas"])
 app.include_router(sync_router, prefix='/api/sync', tags=["sync"])
+app.mount("/static", StaticFiles(directory="app/images"), name="static")
 
 if __name__ == "__main__":
     import uvicorn

--
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