rag-gateway/app/service/difyService.py

import json
from datetime import datetime
from urllib.parse import urlparse, parse_qs

import httpx
from typing import Union, Dict, List
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


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, token=None):
        if not token:
            token = await get_df_token()
        email = f"{username}@df.com"
        invite_res = await self.invite_workspaces_member(token, [email], "admin")
        # print(invite_res)
        if invite_res.get("result") != "success" or not invite_res.get("invitation_results"):
            # logger.error(invite_res)
            return {}
        invite_token = \
        parse_qs(urlparse(invite_res.get("invitation_results")[0].get("url", "")).query).get('token', [None])[0]
        # print(invite_token)
        if not invite_token:
            return {}
        await self.login(email, password, True, invite_token)
        activate_res = await self.activate(email, username, invite_token, "", "")
        activate_res["email"] = email
        activate_res["id"] = invite_token
        return activate_res


    async def invite_workspaces_member(self, token, emails: list, role: str):
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/console/api/workspaces/current/members/invite-email",
                headers={'Content-Type': 'application/json',"Authorization": f'Bearer {token}'},
                json={"emails": emails, "language":  "zh-Hans", "role": role}
            )
            print(response.text)
            return self._handle_response(response)

    async def login(self, email: str, password: str, remember_me,invite_token:str="") -> str:
        # password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
        data = {"email": email, "password": password, "remember_me": remember_me, "invite_token": invite_token,
         "language": "zh-Hans"}

        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/console/api/login",
                headers={'Content-Type': 'application/json'},
                json=data
            )
            if response.status_code != 200:
                raise Exception(f"df login failed: {response.text}")
            return self._handle_response(response)

    async def email_check(self, token, email: str):
        async with httpx.AsyncClient() as client:
            response = await client.get(
                f"{self.base_url}/console/api/activate/check?email={email}&token={token}",
                headers={'Content-Type': 'application/json'}
            )
            return self._handle_response(response)

    async def activate(self, email: str, name: str, token, workspace_id:str, access_token) -> str:
        # password = RagflowCrypto(settings.PUBLIC_KEY, settings.PRIVATE_KEY).encrypt(password)
        data = {"email": email, "name": name, "token": token, #  "workspace_id": workspace_id,
         "interface_language": "en-US", "timezone": "Asia/Shanghai"}
        print(data)
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/console/api/activate",
                headers={'Content-Type': 'application/json'},  # , 'Authorization': f'Bearer {access_token}'
                json=data
            )
            if response.status_code != 200:
                raise Exception(f"df login failed: {response.text}")
            return self._handle_response(response)

    async def invite_member_activate(self, token:str, email: str, name: str, password:str) -> str:
        invite_res  =  await self.invite_workspaces_member(token, [email], "admin")
        print(invite_res)
        if invite_res.get("result") != "success" or not invite_res.get("invitation_results"):
            # logger.error(invite_res)
            return {}
        invite_token = parse_qs(urlparse(invite_res.get("invitation_results")[0].get("url", "")).query).get('token', [None])[0]
        # print(invite_token)
        if not invite_token:
            return {}
        await self.login(email, password, True, invite_token)
        activate_res = await self.activate(email, name,invite_token, "", "")
        return activate_res



    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.invite_workspaces_member("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoiMjE0Y2I2ODctZTZlMC00ZTE2LWExNzUtYzcyNDNlMGRhMWEwIiwiZXhwIjoxNzMzNzI2NDA5LCJpc3MiOiJTRUxGX0hPU1RFRCIsInN1YiI6IkNvbnNvbGUgQVBJIFBhc3Nwb3J0In0.jLe1ODbcqCe79CDt6fFwnuuQL4I2FB9YTs9ynk4FeoQ", ["test05@163.com"],
        #                          "admin")

        # b = await a.email_check(
        #     "ebd36739-0272-4b3f-95ab-0c6ac1639831",
        #     "test05@163.com")
        # b = await a.login(
        #     "test05@163.com",
        #     "zhaoqg123456",
        #     True, "ebd36739-0272-4b3f-95ab-0c6ac1639831")



        # b = await a.activate(
        #     "test05@163.com",
        #     "test05", "ebd36739-0272-4b3f-95ab-0c6ac1639831", "", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoiNzg5OWUzOGQtNzczOS00NGNmLTgyODItZmFlMGZhNDJlZDYwIiwiZXhwIjoxNzMzNzI5NjQyLCJpc3MiOiJTRUxGX0hPU1RFRCIsInN1YiI6IkNvbnNvbGUgQVBJIFBhc3Nwb3J0In0.YMvypPnrvvUIfqzcESj820nP46IsFdTpF_YPz8_Exso")

        b = await a.invite_member_activate(
            "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoiMDE2NTcxNjAtZTllYi00NzVhLWIzMzYtZjlmZWJlY2I5YjczIiwiZXhwIjoxNzMzNzM0ODE0LCJpc3MiOiJTRUxGX0hPU1RFRCIsInN1YiI6IkNvbnNvbGUgQVBJIFBhc3Nwb3J0In0.khaXX3ndDe_pccEHcyTUcO2sgBCEfXCR74ZniP_b54Y",
                "zhao1@df.com",
                 "zhao1Q",
        "ZHAOQG123456")
        print(b)

    import asyncio

    asyncio.run(a())