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from __future__ import annotations |
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import json |
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from aiohttp import ClientSession |
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from ..typing import AsyncGenerator |
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from .base_provider import AsyncGeneratorProvider, format_prompt, get_cookies |
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class HuggingChat(AsyncGeneratorProvider): |
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url = "https://huggingface.co/chat" |
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needs_auth = True |
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working = True |
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model = "OpenAssistant/oasst-sft-6-llama-30b-xor" |
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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: list[dict[str, str]], |
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stream: bool = True, |
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proxy: str = None, |
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cookies: dict = None, |
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**kwargs |
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) -> AsyncGenerator: |
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model = model if model else cls.model |
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if proxy and "://" not in proxy: |
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proxy = f"http://{proxy}" |
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if not cookies: |
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cookies = get_cookies(".huggingface.co") |
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headers = { |
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'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36', |
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} |
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async with ClientSession( |
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cookies=cookies, |
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headers=headers |
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) as session: |
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async with session.post(f"{cls.url}/conversation", proxy=proxy, json={"model": model}) as response: |
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conversation_id = (await response.json())["conversationId"] |
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send = { |
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"inputs": format_prompt(messages), |
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"parameters": { |
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"temperature": 0.2, |
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"truncate": 1000, |
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"max_new_tokens": 1024, |
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"stop": ["</s>"], |
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"top_p": 0.95, |
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"repetition_penalty": 1.2, |
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"top_k": 50, |
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"return_full_text": False, |
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**kwargs |
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}, |
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"stream": stream, |
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"options": { |
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"id": "9e9b8bc4-6604-40c6-994e-8eb78fa32e37", |
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"response_id": "04ce2602-3bea-45e8-8efc-cef00680376a", |
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"is_retry": False, |
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"use_cache": False, |
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"web_search_id": "" |
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} |
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} |
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async with session.post(f"{cls.url}/conversation/{conversation_id}", proxy=proxy, json=send) as response: |
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if not stream: |
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data = await response.json() |
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if "error" in data: |
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raise RuntimeError(data["error"]) |
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elif isinstance(data, list): |
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yield data[0]["generated_text"].strip() |
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else: |
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raise RuntimeError(f"Response: {data}") |
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else: |
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start = "data:" |
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first = True |
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async for line in response.content: |
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line = line.decode("utf-8") |
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if line.startswith(start): |
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line = json.loads(line[len(start):-1]) |
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if "token" not in line: |
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raise RuntimeError(f"Response: {line}") |
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if not line["token"]["special"]: |
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if first: |
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yield line["token"]["text"].lstrip() |
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first = False |
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else: |
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yield line["token"]["text"] |
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async with session.delete(f"{cls.url}/conversation/{conversation_id}", proxy=proxy) as response: |
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response.raise_for_status() |
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@classmethod |
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@property |
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def params(cls): |
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params = [ |
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("model", "str"), |
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("messages", "list[dict[str, str]]"), |
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("stream", "bool"), |
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("proxy", "str"), |
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] |
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param = ", ".join([": ".join(p) for p in params]) |
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return f"g4f.provider.{cls.__name__} supports: ({param})" |
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