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from __future__ import annotations |
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import json |
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from typing import AsyncGenerator, Optional, List, Dict, Union, Any |
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from aiohttp import ClientSession, BaseConnector, ClientResponse |
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from ...typing import AsyncResult, Messages |
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from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin |
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from ..helper import get_random_string, get_connector |
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from ...requests import raise_for_status |
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class Koala(AsyncGeneratorProvider, ProviderModelMixin): |
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url = "https://koala.sh/chat" |
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api_endpoint = "https://koala.sh/api/gpt/" |
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working = False |
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supports_message_history = True |
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default_model = 'gpt-4o-mini' |
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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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proxy: Optional[str] = None, |
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connector: Optional[BaseConnector] = None, |
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**kwargs: Any |
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) -> AsyncGenerator[Dict[str, Union[str, int, float, List[Dict[str, Any]], None]], None]: |
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if not model: |
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model = "gpt-4o-mini" |
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headers = { |
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"User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:122.0) Gecko/20100101 Firefox/122.0", |
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"Accept": "text/event-stream", |
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"Accept-Language": "de,en-US;q=0.7,en;q=0.3", |
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"Accept-Encoding": "gzip, deflate, br", |
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"Referer": f"{cls.url}", |
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"Flag-Real-Time-Data": "false", |
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"Visitor-ID": get_random_string(20), |
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"Origin": "https://koala.sh", |
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"Alt-Used": "koala.sh", |
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"Sec-Fetch-Dest": "empty", |
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"Sec-Fetch-Mode": "cors", |
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"Sec-Fetch-Site": "same-origin", |
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"TE": "trailers", |
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} |
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async with ClientSession(headers=headers, connector=get_connector(connector, proxy)) as session: |
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input_text = messages[-1]["content"] |
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system_messages = " ".join( |
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message["content"] for message in messages if message["role"] == "system" |
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) |
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if system_messages: |
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input_text += f" {system_messages}" |
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data = { |
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"input": input_text, |
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"inputHistory": [ |
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message["content"] |
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for message in messages[:-1] |
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if message["role"] == "user" |
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], |
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"outputHistory": [ |
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message["content"] |
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for message in messages |
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if message["role"] == "assistant" |
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], |
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"model": model, |
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} |
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async with session.post(f"{cls.api_endpoint}", json=data, proxy=proxy) as response: |
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await raise_for_status(response) |
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async for chunk in cls._parse_event_stream(response): |
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yield chunk |
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@staticmethod |
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async def _parse_event_stream(response: ClientResponse) -> AsyncGenerator[Dict[str, Any], None]: |
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async for chunk in response.content: |
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if chunk.startswith(b"data: "): |
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yield json.loads(chunk[6:]) |
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