From f95f801f35aa201cbaffd7d881c07edc9398b570 Mon Sep 17 00:00:00 2001
From: zhaoqingang <zhaoqg0118@163.com>
Date: 星期一, 03 三月 2025 16:03:51 +0800
Subject: [PATCH] 增加外接知识库中转接口
---
app/service/v2/chat.py | 435 +++++++++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 394 insertions(+), 41 deletions(-)
diff --git a/app/service/v2/chat.py b/app/service/v2/chat.py
index 982ed43..33634a9 100644
--- a/app/service/v2/chat.py
+++ b/app/service/v2/chat.py
@@ -1,70 +1,423 @@
+import asyncio
+import io
import json
+import fitz
+from fastapi import HTTPException
+
from Log import logger
-from app.config.agent_base_url import RG_CHAT_DIALOG
+from app.config.agent_base_url import RG_CHAT_DIALOG, DF_CHAT_AGENT, DF_CHAT_PARAMETERS, RG_CHAT_SESSIONS, \
+ DF_CHAT_WORKFLOW, DF_UPLOAD_FILE, RG_ORIGINAL_URL
from app.config.config import settings
-from app.config.const import max_chunk_size
-from app.models.v2.session_model import ChatSessionDao
+from app.config.const import *
+from app.models import DialogModel, ApiTokenModel, UserTokenModel
+from app.models.v2.session_model import ChatSessionDao, ChatData
+from app.service.v2.app_driver.chat_agent import ChatAgent
+from app.service.v2.app_driver.chat_data import ChatBaseApply
from app.service.v2.app_driver.chat_dialog import ChatDialog
+from app.service.v2.app_driver.chat_workflow import ChatWorkflow
+from docx import Document
+from dashscope import get_tokenizer # dashscope鐗堟湰 >= 1.14.0
-async def service_chat_dialog(db, chat_id:str, question: str, session_id: str, user_id):
- token = "ragflow-YzMzE1NDRjYzMyZjExZWY5ZjkxMDI0Mm"
- url = settings.fwr_base_url+RG_CHAT_DIALOG.format(chat_id)
- chat = ChatDialog(token)
- request_data = {
- "question": question,
- "stream": True,
- "session_id": session_id
- }
- headers = {
- 'Content-Type': 'application/json',
- 'Authorization': f"Bearer {token}"
- }
+async def update_session_log(db, session_id: str, message: dict, conversation_id: str):
+ await ChatSessionDao(db).update_session_by_id(
+ session_id=session_id,
+ session=None,
+ message=message,
+ conversation_id=conversation_id
+ )
+
+
+async def add_session_log(db, session_id: str, question: str, chat_id: str, user_id, event_type: str,
+ conversation_id: str, agent_type):
try:
- await ChatSessionDao(db).update_or_insert_by_id(
+ session = await ChatSessionDao(db).update_or_insert_by_id(
session_id=session_id,
name=question[:255],
agent_id=chat_id,
- agent_type=1,
+ agent_type=agent_type,
tenant_id=user_id,
message={"role": "user", "content": question},
- conversation_id=session_id,
- event_type="message"
+ conversation_id=conversation_id,
+ event_type=event_type
)
+ return session
except Exception as e:
logger.error(e)
+ return None
+
+async def get_app_token(db, app_id):
+ app_token = db.query(UserTokenModel).filter_by(id=app_id).first()
+ if app_token:
+ return app_token.access_token
+ return ""
+
+
+
+async def get_chat_token(db, app_id):
+ app_token = db.query(ApiTokenModel).filter_by(app_id=app_id).first()
+ if app_token:
+ return app_token.token
+ return ""
+
+
+async def add_chat_token(db, data):
try:
- message = {"role": "assistant","answer":"", "reference": {}}
- async for ans in chat.chat_completions(url, request_data, headers):
+ api_token = ApiTokenModel(**data)
+ db.add(api_token)
+ db.commit()
+ except Exception as e:
+ logger.error(e)
+
+
+
+async def get_chat_info(db, chat_id: str):
+ return db.query(DialogModel).filter_by(id=chat_id, status=Dialog_STATSU_ON).first()
+
+
+async def get_chat_object(mode):
+ if mode == workflow_chat:
+ url = settings.dify_base_url + DF_CHAT_WORKFLOW
+ return ChatWorkflow(), url
+ else:
+ url = settings.dify_base_url + DF_CHAT_AGENT
+ return ChatAgent(), url
+
+
+async def service_chat_dialog(db, chat_id: str, question: str, session_id: str, user_id, mode: str):
+ conversation_id = ""
+ token = await get_chat_token(db, rg_api_token)
+ url = settings.fwr_base_url + RG_CHAT_DIALOG.format(chat_id)
+ chat = ChatDialog()
+ session = await add_session_log(db, session_id, question, chat_id, user_id, mode, session_id, 1)
+ if session:
+ conversation_id = session.conversation_id
+ message = {"role": "assistant", "answer": "", "reference": {}}
+ try:
+ async for ans in chat.chat_completions(url, await chat.request_data(question, conversation_id),
+ await chat.get_headers(token)):
+ data = {}
+ error = ""
+ status = http_200
if ans.get("code", None) == 102:
- error = ans.get("message", "璇疯緭鍏ヤ綘鐨勯棶棰橈紒")
- data = {"answer":error}
- event = "message"
+ error = ans.get("message", "error锛�")
+ status = http_400
+ event = smart_message_error
else:
if isinstance(ans.get("data"), bool) and ans.get("data") is True:
- data = {}
- event = "message_end"
+ event = smart_message_end
else:
data = ans.get("data", {})
- message = ans.get("data", {})
- event = "message"
- message_str = "data: " + json.dumps({"event": event, "data": data}, ensure_ascii=False) + "\n\n"
+ # conversation_id = data.get("session_id", "")
+ if "session_id" in data:
+ del data["session_id"]
+ message = data
+ event = smart_message_cover
+ message_str = "data: " + json.dumps(
+ {"event": event, "data": data, "error": error, "status": status, "session_id": session_id},
+ ensure_ascii=False) + "\n\n"
for i in range(0, len(message_str), max_chunk_size):
chunk = message_str[i:i + max_chunk_size]
# print(chunk)
yield chunk # 鍙戦�佸垎鍧楁秷鎭�
- await ChatSessionDao(db).update_session_by_id(
- session_id=session_id,
- session=None,
- message=message
- )
+ except Exception as e:
+
+ logger.error(e)
+ try:
+ yield "data: " + json.dumps({"message": smart_message_error,
+ "error": "\n**ERROR**: " + str(e), "status": http_500},
+ ensure_ascii=False) + "\n\n"
+ except:
+ ...
+ finally:
+ message["role"] = "assistant"
+ await update_session_log(db, session_id, message, conversation_id)
+
+async def data_process(data):
+ if isinstance(data, str):
+ return data.replace("dify", "smart")
+ elif isinstance(data, dict):
+ for k in list(data.keys()):
+ if isinstance(k, str) and "dify" in k:
+ new_k = k.replace("dify", "smart")
+ data[new_k] = await data_process(data[k])
+ del data[k]
+ else:
+ data[k] = await data_process(data[k])
+ return data
+ elif isinstance(data, list):
+ for i in range(len(data)):
+ data[i] = await data_process(data[i])
+ return data
+ else:
+ return data
+
+
+async def service_chat_workflow(db, chat_id: str, chat_data: ChatData, session_id: str, user_id, mode: str):
+ conversation_id = ""
+ answer_event = ""
+ answer_agent = ""
+ answer_workflow = ""
+ download_url = ""
+ message_id = ""
+ task_id = ""
+ error = ""
+ files = []
+ node_list = []
+ token = await get_chat_token(db, chat_id)
+ chat, url = await get_chat_object(mode)
+ if hasattr(chat_data, "query"):
+ query = chat_data.query
+ else:
+ query = "start new workflow"
+ session = await add_session_log(db, session_id,query if query else "start new conversation", chat_id, user_id, mode, conversation_id, 3)
+ if session:
+ conversation_id = session.conversation_id
+ try:
+ async for ans in chat.chat_completions(url,
+ await chat.request_data(query, conversation_id, str(user_id), chat_data),
+ await chat.get_headers(token)):
+ data = {}
+ status = http_200
+ conversation_id = ans.get("conversation_id")
+ task_id = ans.get("task_id")
+ if ans.get("event") == message_error:
+ error = ans.get("message", "鍙傛暟寮傚父锛�")
+ status = http_400
+ event = smart_message_error
+ elif ans.get("event") == message_agent:
+ data = {"answer": ans.get("answer", ""), "id": ans.get("message_id", "")}
+ answer_agent += ans.get("answer", "")
+ message_id = ans.get("message_id", "")
+ event = smart_message_stream
+ elif ans.get("event") == message_event:
+ data = {"answer": ans.get("answer", ""), "id": ans.get("message_id", "")}
+ answer_event += ans.get("answer", "")
+ message_id = ans.get("message_id", "")
+ event = smart_message_stream
+ elif ans.get("event") == message_file:
+ data = {"url": ans.get("url", ""), "id": ans.get("id", ""),
+ "type": ans.get("type", "")}
+ files.append(data)
+ event = smart_message_file
+ elif ans.get("event") in [workflow_started, node_started, node_finished]:
+ data = ans.get("data", {})
+ data["inputs"] = await data_process(data.get("inputs", {}))
+ data["outputs"] = await data_process(data.get("outputs", {}))
+ data["files"] = await data_process(data.get("files", []))
+ data["process_data"] = ""
+ if data.get("status") == "failed":
+ status = http_500
+ error = data.get("error", "")
+ node_list.append(ans)
+ event = [smart_workflow_started, smart_node_started, smart_node_finished][
+ [workflow_started, node_started, node_finished].index(ans.get("event"))]
+ elif ans.get("event") == workflow_finished:
+ data = ans.get("data", {})
+ answer_workflow = data.get("outputs", {}).get("output")
+ download_url = data.get("outputs", {}).get("download_url")
+ event = smart_workflow_finished
+ if data.get("status") == "failed":
+ status = http_500
+ error = data.get("error", "")
+ node_list.append(ans)
+
+ elif ans.get("event") == message_end:
+ event = smart_message_end
+ else:
+ continue
+
+ yield "data: " + json.dumps(
+ {"event": event, "data": data, "error": error, "status": status, "task_id": task_id,
+ "session_id": session_id},
+ ensure_ascii=False) + "\n\n"
+
except Exception as e:
logger.error(e)
- yield "data: " + json.dumps({"message": "message",
- "data": {"answer": "**ERROR**: " + str(e), "reference": []}},
- ensure_ascii=False) + "\n\n"
+ try:
+ yield "data: " + json.dumps({"message": smart_message_error,
+ "error": "\n**ERROR**: " + str(e), "status": http_500},
+ ensure_ascii=False) + "\n\n"
+ except:
+ ...
+ finally:
+ await update_session_log(db, session_id, {"role": "assistant", "answer": answer_event or answer_agent or answer_workflow or error,
+ "download_url":download_url,
+ "node_list": node_list, "task_id": task_id, "id": message_id,
+ "error": error}, conversation_id)
- yield "data: " + json.dumps({"message": "message_end",
- "data": {}},
- ensure_ascii=False) + "\n\n"
\ No newline at end of file
+
+async def service_chat_basic(db, chat_id: str, chat_data: ChatData, session_id: str, user_id, mode: str):
+ ...
+
+
+async def service_chat_parameters(db, chat_id, user_id):
+ chat_info = db.query(DialogModel).filter_by(id=chat_id).first()
+ if not chat_info:
+ return {}
+ return chat_info.parameters
+
+async def service_chat_sessions(db, chat_id, name):
+ token = await get_chat_token(db, rg_api_token)
+ # print(token)
+ if not token:
+ return {}
+ url = settings.fwr_base_url + RG_CHAT_SESSIONS.format(chat_id)
+ chat = ChatDialog()
+ return await chat.chat_sessions(url, {"name": name}, await chat.get_headers(token))
+
+
+async def service_chat_sessions_list(db, chat_id, current, page_size, user_id, keyword):
+ total, session_list = await ChatSessionDao(db).get_session_list(
+ user_id=user_id,
+ agent_id=chat_id,
+ keyword=keyword,
+ page=current,
+ page_size=page_size
+ )
+ return json.dumps({"total":total, "rows": [session.to_dict() for session in session_list]})
+
+
+
+async def service_chat_session_log(db, session_id):
+ session_log = await ChatSessionDao(db).get_session_by_id(session_id)
+ return json.dumps(session_log.log_to_json())
+
+
+
+async def service_chat_upload(db, chat_id, file, user_id):
+ files = []
+ token = await get_chat_token(db, chat_id)
+ if not token:
+ return files
+ url = settings.dify_base_url + DF_UPLOAD_FILE
+ chat = ChatBaseApply()
+ for f in file:
+ try:
+ file_content = await f.read()
+ file_upload = await chat.chat_upload(url, {"file": (f.filename, file_content)}, {"user": str(user_id)},
+ {'Authorization': f'Bearer {token}'})
+ try:
+ tokens = await read_file(file_content, f.filename, f.content_type)
+ file_upload["tokens"] = tokens
+ except:
+ ...
+ files.append(file_upload)
+ except Exception as e:
+ logger.error(e)
+ return json.dumps(files) if files else ""
+
+
+async def get_str_token(input_str):
+ # 鑾峰彇tokenizer瀵硅薄锛岀洰鍓嶅彧鏀寔閫氫箟鍗冮棶绯诲垪妯″瀷
+ tokenizer = get_tokenizer('qwen-turbo')
+ # 灏嗗瓧绗︿覆鍒囧垎鎴恡oken骞惰浆鎹负token id
+ tokens = tokenizer.encode(input_str)
+ return len(tokens)
+
+async def read_pdf(pdf_stream):
+ text = ""
+ with fitz.open(stream=pdf_stream, filetype="pdf") as pdf_document:
+ for page in pdf_document:
+ text += page.get_text()
+ return text
+
+
+async def read_word(word_stream):
+ # 浣跨敤 python-docx 鎵撳紑 Word 鏂囦欢娴�
+ doc = Document(io.BytesIO(word_stream))
+
+ # 鎻愬彇姣忎釜娈佃惤鐨勬枃鏈�
+ text = ""
+ for para in doc.paragraphs:
+ text += para.text
+
+ return text
+
+async def read_file(file, filename, content_type):
+ text = ""
+ if content_type == "application/pdf" or filename.endswith('.pdf'):
+
+ # 鎻愬彇 PDF 鍐呭
+ text = await read_pdf(file)
+ elif content_type == "application/vnd.openxmlformats-officedocument.wordprocessingml.document" or filename.endswith(
+ '.docx'):
+ text = await read_word(file)
+
+ return await get_str_token(text)
+
+
+async def service_chunk_retrieval(query, top_k, similarity_threshold, api_key):
+ print(query)
+
+ try:
+ request_data = json.loads(query)
+ except json.JSONDecodeError as e:
+ fixed_json = query.replace("'", '"')
+ print("Fixed JSON:", fixed_json)
+ request_data = json.loads(fixed_json)
+ payload = {
+ "question": request_data.get("query", ""),
+ "dataset_ids": request_data.get("dataset_ids", []),
+ "page_size": top_k,
+ "similarity_threshold": similarity_threshold
+ }
+ url = settings.fwr_base_url + RG_ORIGINAL_URL
+ # url = "http://192.168.20.116:11080/" + RG_ORIGINAL_URL
+ chat = ChatBaseApply()
+ response = await chat.chat_post(url, payload, await chat.get_headers(api_key))
+ if not response:
+ raise HTTPException(status_code=500, detail="鏈嶅姟寮傚父锛�")
+ print(response)
+ records = [
+ {
+ "content": chunk["content"],
+ "score": chunk["similarity"],
+ "title": chunk.get("document_keyword", "Unknown Document"),
+ "metadata": {"document_id": chunk["document_id"],
+ "path": f"{settings.fwr_base_url}/document/{chunk['document_id']}?ext={chunk.get('document_keyword').split('.')[-1]}&prefix=document",
+ 'highlight': chunk.get("highlight") , "image_id": chunk.get("image_id"), "positions": chunk.get("positions"),}
+ }
+ for chunk in response.get("data", {}).get("chunks", [])
+ ]
+ return records
+
+async def service_base_chunk_retrieval(query, knowledge_id, top_k, similarity_threshold, api_key):
+ # request_data = json.loads(query)
+ payload = {
+ "question": query,
+ "dataset_ids": [knowledge_id],
+ "page_size": top_k,
+ "similarity_threshold": similarity_threshold
+ }
+ url = settings.fwr_base_url + RG_ORIGINAL_URL
+ # url = "http://192.168.20.116:11080/" + RG_ORIGINAL_URL
+ chat = ChatBaseApply()
+ response = await chat.chat_post(url, payload, await chat.get_headers(api_key))
+ if not response:
+ raise HTTPException(status_code=500, detail="鏈嶅姟寮傚父锛�")
+ records = [
+ {
+ "content": chunk["content"],
+ "score": chunk["similarity"],
+ "title": chunk.get("document_keyword", "Unknown Document"),
+ "metadata": {"document_id": chunk["document_id"]}
+ }
+ for chunk in response.get("data", {}).get("chunks", [])
+ ]
+ return records
+
+
+
+if __name__ == "__main__":
+ q = json.dumps({"query": "璁惧", "dataset_ids": ["fc68db52f43111efb94a0242ac120004"]})
+ top_k = 2
+ similarity_threshold = 0.5
+ api_key = "ragflow-Y4MGYwY2JlZjM2YjExZWY4ZWU5MDI0Mm"
+ # a = service_chunk_retrieval(q, top_k, similarity_threshold, api_key)
+ # print(a)
+ async def a():
+ b = await service_chunk_retrieval(q, top_k, similarity_threshold, api_key)
+ print(b)
+ asyncio.run(a())
\ No newline at end of file
--
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