from __future__ import annotations import os import ssl import time import uuid import json from aiohttp import ClientSession, TCPConnector, BaseConnector from g4f.requests import raise_for_status from ...typing import AsyncResult, Messages from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin from ...errors import MissingAuthError from ..helper import get_connector access_token = "" token_expires_at = 0 class GigaChat(AsyncGeneratorProvider, ProviderModelMixin): url = "https://developers.sber.ru/gigachat" working = True supports_message_history = True supports_system_message = True supports_stream = True needs_auth = True default_model = "GigaChat:latest" models = ["GigaChat:latest", "GigaChat-Plus", "GigaChat-Pro"] @classmethod async def create_async_generator( cls, model: str, messages: Messages, stream: bool = True, proxy: str = None, api_key: str = None, connector: BaseConnector = None, scope: str = "GIGACHAT_API_PERS", update_interval: float = 0, **kwargs ) -> AsyncResult: global access_token, token_expires_at model = cls.get_model(model) if not api_key: raise MissingAuthError('Missing "api_key"') cafile = os.path.join(os.path.dirname(__file__), "russian_trusted_root_ca_pem.crt") ssl_context = ssl.create_default_context(cafile=cafile) if os.path.exists(cafile) else None if connector is None and ssl_context is not None: connector = TCPConnector(ssl_context=ssl_context) async with ClientSession(connector=get_connector(connector, proxy)) as session: if token_expires_at - int(time.time() * 1000) < 60000: async with session.post(url="https://ngw.devices.sberbank.ru:9443/api/v2/oauth", headers={"Authorization": f"Bearer {api_key}", "RqUID": str(uuid.uuid4()), "Content-Type": "application/x-www-form-urlencoded"}, data={"scope": scope}) as response: await raise_for_status(response) data = await response.json() access_token = data['access_token'] token_expires_at = data['expires_at'] async with session.post(url="https://gigachat.devices.sberbank.ru/api/v1/chat/completions", headers={"Authorization": f"Bearer {access_token}"}, json={ "model": model, "messages": messages, "stream": stream, "update_interval": update_interval, **kwargs }) as response: await raise_for_status(response) async for line in response.content: if not stream: yield json.loads(line.decode("utf-8"))['choices'][0]['message']['content'] return if line and line.startswith(b"data:"): line = line[6:-1] # remove "data: " prefix and "\n" suffix if line.strip() == b"[DONE]": return else: msg = json.loads(line.decode("utf-8"))['choices'][0] content = msg['delta']['content'] if content: yield content if 'finish_reason' in msg: return