import httpx
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from typing import Union, Dict, List
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from fastapi import HTTPException
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from starlette import status
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from app.config.config import settings
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from app.utils.rsa_crypto import RagflowCrypto
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class RagflowService:
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def __init__(self, base_url: str):
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self.base_url = base_url
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def _handle_response(self, response: httpx.Response) -> Union[Dict, List]:
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if response.status_code != 200:
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return {}
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data = response.json()
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ret_code = data.get("retcode")
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if ret_code == 401:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="登录过期",
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)
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if ret_code != 0:
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return {}
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# 检查返回的数据类型
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if isinstance(data.get("data"), dict):
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return data.get("data", {})
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elif isinstance(data.get("data"), list):
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return data.get("data", [])
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else:
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return {}
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async def register(self, username: str, password: str):
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password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
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async with httpx.AsyncClient() as client:
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response = await client.post(
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f"{self.base_url}/v1/user/register",
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headers={'Content-Type': 'application/json'},
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json={"nickname": username, "email": f"{username}@example.com", "password": password}
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)
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if response.status_code != 200:
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raise Exception(f"Ragflow registration failed: {response.text}")
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return self._handle_response(response)
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async def login(self, username: str, password: str) -> str:
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password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
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async with httpx.AsyncClient() as client:
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response = await client.post(
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f"{self.base_url}/v1/user/login",
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headers={'Content-Type': 'application/json'},
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json={"email": f"{username}@example.com", "password": password}
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)
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if response.status_code != 200:
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raise Exception(f"Ragflow login failed: {response.text}")
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authorization = response.headers.get('Authorization')
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if not authorization:
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raise Exception("Authorization header not found in response")
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return authorization
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async def chat(self, token: str, chat_id: str, chat_history: list):
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data = {
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"conversation_id": chat_id,
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"messages": chat_history
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}
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print(f"send to ragflow chat: {data}")
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target_url = f"{self.base_url}/v1/conversation/completion"
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async with httpx.AsyncClient(timeout=300.0) as client:
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headers = {
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'Content-Type': 'application/json',
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'Authorization': token
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}
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async with client.stream("POST", target_url, json=data, headers=headers) as response:
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if response.status_code == 200:
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try:
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async for answer in response.aiter_text():
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print(f"response of ragflow chat: {answer}")
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yield answer
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except GeneratorExit as e:
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print(e)
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return
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else:
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yield f"Error: {response.status_code}"
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async def get_chat_sessions(self, token: str, dialog_id: str) -> list:
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url = f"{self.base_url}/v1/conversation/list?dialog_id={dialog_id}"
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headers = {"Authorization": token}
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async with httpx.AsyncClient() as client:
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response = await client.get(url, headers=headers)
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data = self._handle_response(response)
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result = [
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{
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"id": item["id"],
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"name": item["name"],
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"updated_time": item["update_time"]
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}
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for item in data
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]
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return result
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async def set_session(self, token: str, dialog_id: str, message: dict, chat_id: str, is_new: bool) -> list:
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url = f"{self.base_url}/v1/conversation/set?dialog_id={dialog_id}"
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headers = {"Authorization": token}
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data = {
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"dialog_id": dialog_id,
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"name": message["message"],
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"is_new": is_new,
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"conversation_id": chat_id,
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}
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async with httpx.AsyncClient() as client:
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response = await client.post(url, headers=headers, json=data)
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data = self._handle_response(response)
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return [
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{
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"content": "你好！ 我是你的助理，有什么可以帮到你的吗？",
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"role": "assistant"
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},
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{
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"content": message["message"],
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"doc_ids":message.get("doc_ids", []),
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"role": "user"
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}
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] if data else []
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async def get_session_history(self, token: str, chat_id: str) -> list:
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url = f"{self.base_url}/v1/conversation/get?conversation_id={chat_id}"
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headers = {"Authorization": token}
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async with httpx.AsyncClient() as client:
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response = await client.get(url, headers=headers)
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data = self._handle_response(response)
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return data.get("message", [])
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async def upload_and_parse(self, token: str, chat_id: str, filename: str, file: bytes) -> str:
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url = f"{self.base_url}/v1/document/upload_and_parse"
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headers = {"Authorization": token}
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data = {"conversation_id": chat_id}
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# 创建表单数据，包含文件
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files = {"file": (filename, file)}
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async with httpx.AsyncClient(timeout=60) as client:
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response = await client.post(url, headers=headers, files=files, data=data)
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data = self._handle_response(response)
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return data
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async def add_user_tenant(self, token: str, tenant_id: str, email: str, user_id: str) -> str:
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url = f"{self.base_url}/v1/tenant/{tenant_id}/user"
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headers = {"Authorization": token}
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data = {"email": email, "user_id": user_id}
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async with httpx.AsyncClient(timeout=60) as client:
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response = await client.post(url, headers=headers, json=data)
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if response.status_code != 200:
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raise Exception(f"Ragflow add user to tenant failed: {response.text}")
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