import json
|
from datetime import datetime
|
|
import httpx
|
from typing import Union, Dict, List
|
from fastapi import HTTPException
|
from starlette import status
|
|
from app.config.config import settings
|
from app.utils.rsa_crypto import RagflowCrypto
|
|
|
class DifyService:
|
def __init__(self, base_url: str):
|
self.base_url = base_url
|
|
def _handle_response(self, response: httpx.Response) -> Union[Dict, List]:
|
if response.status_code != 200:
|
if response.status_code == 201:
|
return response.json()
|
return {}
|
|
data = response.json()
|
ret_code = data.get("retcode")
|
if ret_code == 401:
|
raise HTTPException(
|
status_code=status.HTTP_401_UNAUTHORIZED,
|
detail="登录过期",
|
)
|
# if ret_code != 0:
|
# return {}
|
|
# 检查返回的数据类型
|
if isinstance(data.get("data"), dict):
|
return data.get("data", {})
|
elif isinstance(data.get("data"), list):
|
return data.get("data", [])
|
else:
|
return data
|
|
async def register(self, username: str, password: str):
|
password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
|
async with httpx.AsyncClient() as client:
|
response = await client.post(
|
f"{self.base_url}/v1/user/register",
|
headers={'Content-Type': 'application/json'},
|
json={"nickname": username, "email": f"{username}@example.com", "password": password}
|
)
|
if response.status_code != 200:
|
raise Exception(f"Ragflow registration failed: {response.text}")
|
return self._handle_response(response)
|
|
async def login(self, username: str, password: str) -> str:
|
password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
|
async with httpx.AsyncClient() as client:
|
response = await client.post(
|
f"{self.base_url}/v1/user/login",
|
headers={'Content-Type': 'application/json'},
|
json={"email": f"{username}@example.com", "password": password}
|
)
|
if response.status_code != 200:
|
raise Exception(f"Ragflow login failed: {response.text}")
|
authorization = response.headers.get('Authorization')
|
if not authorization:
|
raise Exception("Authorization header not found in response")
|
return authorization
|
|
async def chat(self, token: str, user_id: int, message: str, upload_file_id: str, conversation_id: str):
|
|
target_url = f"{self.base_url}/v1/chat-messages"
|
files = []
|
if upload_file_id:
|
files = [
|
{
|
"type": "image",
|
"transfer_method": "local_file",
|
"url": "",
|
"upload_file_id": upload_file_id
|
}
|
]
|
data = {
|
"inputs": {},
|
"query": message,
|
"response_mode": "streaming",
|
"conversation_id": conversation_id,
|
"user": str(user_id),
|
"files": files
|
}
|
|
async with httpx.AsyncClient(timeout=300.0) as client:
|
headers = {
|
'Content-Type': 'application/json',
|
'Authorization': f'Bearer {token}'
|
}
|
async with client.stream("POST", target_url, data=json.dumps(data), headers=headers) as response:
|
if response.status_code == 200:
|
try:
|
async for answer in response.aiter_text():
|
# print(f"response of ragflow chat: {answer}")
|
yield answer
|
except GeneratorExit as e:
|
print(e)
|
return
|
else:
|
yield f"Error: {response.status_code}"
|
|
|
|
async def get_session_history(self, token: str, conversation_id: str, user: str):
|
url = f"{self.base_url}/v1/messages"
|
params = {
|
'user': user,
|
'conversation_id': conversation_id
|
}
|
headers = {"Authorization": f'Bearer {token}'}
|
async with httpx.AsyncClient() as client:
|
response = await client.get(url, params=params, headers=headers)
|
# print(response.text)
|
# print(response.status_code)
|
# print(response.res)
|
data = self._handle_response(response)
|
# print("----------------data----------------------:", data)
|
|
return data
|
|
async def upload(self, token: str, filename: str, file: bytes, user_id) -> dict:
|
url = f"{self.base_url}/v1/files/upload"
|
headers = {
|
# 'Content-Type': 'application/json',
|
'Authorization': f'Bearer {token}'
|
}
|
data = {
|
'user': str(user_id)
|
}
|
# 创建表单数据，包含文件
|
files = {"file": (filename, file)}
|
async with httpx.AsyncClient() as client:
|
response = await client.post(url, headers=headers, files=files, data=data)
|
data = self._handle_response(response)
|
|
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()
|
|
# 打开一个文件用于写入
|
with open(f"app/images/{filename}", 'wb') as f:
|
# 写入请求的内容
|
f.write(response.content)
|
|
|
async def workflow(self, token: str, user_id: int, inputs: dict):
|
|
target_url = f"{self.base_url}/v1/workflows/run"
|
data = {
|
"inputs": inputs,
|
"response_mode": "streaming",
|
"user": str(user_id),
|
"files":[]
|
}
|
|
async with httpx.AsyncClient(timeout=1800) as client:
|
headers = {
|
'Content-Type': 'application/json',
|
'Authorization': f'Bearer {token}'
|
}
|
async with client.stream("POST", target_url, data=json.dumps(data), headers=headers) as response:
|
if response.status_code == 200:
|
try:
|
async for answer in response.aiter_text():
|
# print(f"response of ragflow chat: {answer}")
|
yield answer
|
except GeneratorExit as e:
|
print(e)
|
return
|
else:
|
yield f"Error: {response.status_code}"
|
|
|
|
if __name__ == "__main__":
|
async def a():
|
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
|
|
asyncio.run(a())
|
