mirror of https://github.com/xtekky/gpt4free.git
93 lines
3.8 KiB
Python
93 lines
3.8 KiB
Python
from __future__ import annotations
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import os
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import ssl
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import time
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import uuid
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import json
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from aiohttp import ClientSession, TCPConnector, BaseConnector
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from g4f.requests import raise_for_status
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from ..typing import AsyncResult, Messages
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from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
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from ..errors import MissingAuthError
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from .helper import get_connector
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access_token = ""
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token_expires_at = 0
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class GigaChat(AsyncGeneratorProvider, ProviderModelMixin):
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url = "https://developers.sber.ru/gigachat"
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working = True
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supports_message_history = True
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supports_system_message = True
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supports_stream = True
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needs_auth = True
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default_model = "GigaChat:latest"
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models = ["GigaChat:latest", "GigaChat-Plus", "GigaChat-Pro"]
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@classmethod
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async def create_async_generator(
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cls,
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model: str,
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messages: Messages,
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stream: bool = True,
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proxy: str = None,
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api_key: str = None,
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coonector: BaseConnector = None,
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scope: str = "GIGACHAT_API_PERS",
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update_interval: float = 0,
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**kwargs
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) -> AsyncResult:
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global access_token, token_expires_at
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model = cls.get_model(model)
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if not api_key:
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raise MissingAuthError('Missing "api_key"')
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cafile = os.path.join(os.path.dirname(__file__), "gigachat_crt/russian_trusted_root_ca_pem.crt")
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ssl_context = ssl.create_default_context(cafile=cafile) if os.path.exists(cafile) else None
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if connector is None and ssl_context is not None:
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connector = TCPConnector(ssl_context=ssl_context)
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async with ClientSession(connector=get_connector(connector, proxy)) as session:
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if token_expires_at - int(time.time() * 1000) < 60000:
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async with session.post(url="https://ngw.devices.sberbank.ru:9443/api/v2/oauth",
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headers={"Authorization": f"Bearer {api_key}",
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"RqUID": str(uuid.uuid4()),
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"Content-Type": "application/x-www-form-urlencoded"},
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data={"scope": scope}) as response:
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await raise_for_status(response)
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data = await response.json()
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access_token = data['access_token']
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token_expires_at = data['expires_at']
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async with session.post(url="https://gigachat.devices.sberbank.ru/api/v1/chat/completions",
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headers={"Authorization": f"Bearer {access_token}"},
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json={
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"model": model,
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"messages": messages,
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"stream": stream,
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"update_interval": update_interval,
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**kwargs
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}) as response:
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await raise_for_status(response)
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async for line in response.content:
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if not stream:
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yield json.loads(line.decode("utf-8"))['choices'][0]['message']['content']
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return
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if line and line.startswith(b"data:"):
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line = line[6:-1] # remove "data: " prefix and "\n" suffix
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if line.strip() == b"[DONE]":
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return
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else:
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msg = json.loads(line.decode("utf-8"))['choices'][0]
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content = msg['delta']['content']
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if content:
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yield content
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if 'finish_reason' in msg:
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return
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