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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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connector: 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__), "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] |
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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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