rag-gateway/app/service/bisheng.py

from datetime import datetime

import httpx

from app.config.config import settings
from app.utils.rsa_crypto import BishengCrypto


class BishengService:
    def __init__(self, base_url: str):
        self.base_url = base_url

    async def register(self, username: str, password: str):
        public_key = await self.get_public_key_api()
        password = BishengCrypto(public_key, settings.PRIVATE_KEY).encrypt(password)
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/api/v1/user/regist",
                json={"user_name": username, "password": password},
                headers={'Content-Type': 'application/json'}
            )
            if response.status_code != 200 and response.status_code != 201:
                raise Exception(f"Bisheng registration failed: {response.text}")

    async def login(self, username: str, password: str) -> str:
        public_key = await self.get_public_key_api()
        password = BishengCrypto(public_key, settings.PRIVATE_KEY).encrypt(password)
        async with httpx.AsyncClient() as client:
            response = await client.post(
                f"{self.base_url}/api/v1/user/login",
                json={"user_name": username, "password": password},
                headers={'Content-Type': 'application/json'}
            )
            if response.status_code != 200 and response.status_code != 201:
                raise Exception(f"Bisheng login failed: {response.text}")
            return response.json().get('data', {}).get('access_token')

    async def get_public_key_api(self) -> dict:
        async with httpx.AsyncClient() as client:
            response = await client.get(
                f"{self.base_url}/api/v1/user/public_key",
                headers={'Content-Type': 'application/json'}
            )
            if response.status_code != 200:
                raise Exception(f"Failed to get public key: {response.text}")
            return response.json().get('data', {}).get('public_key')

    async def get_chat_sessions(self, token: str) -> list:
        url = f"{self.base_url}/api/v1/chat/list?page=1&limit=40"
        headers = {'cookie': f"access_token_cookie={token};"}
        async with httpx.AsyncClient() as client:
            response = await client.get(url, headers=headers)
            if response.status_code != 200:
                raise Exception(f"Failed to fetch data from Bisheng API: {response.text}")

            data = response.json().get("data", [])
            result = [
                {
                    "id": item["chat_id"],
                    "name": item["latest_message"]["message"],
                    "updated_time": int(datetime.strptime(item["update_time"], "%Y-%m-%dT%H:%M:%S").timestamp() * 1000)
                }
                for item in data
            ]
            return result