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from __future__ import annotations |
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import random |
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import json |
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from ..typing import AsyncResult, Messages |
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from ..requests import StreamSession, raise_for_status |
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from .base_provider import AsyncGeneratorProvider, ProviderModelMixin |
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API_URL = "https://www.perplexity.ai/socket.io/" |
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WS_URL = "wss://www.perplexity.ai/socket.io/" |
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class PerplexityLabs(AsyncGeneratorProvider, ProviderModelMixin): |
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url = "https://labs.perplexity.ai" |
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working = True |
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default_model = "llama-3.1-70b-instruct" |
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models = [ |
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"llama-3.1-sonar-large-128k-online", |
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"llama-3.1-sonar-small-128k-online", |
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"llama-3.1-sonar-large-128k-chat", |
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"llama-3.1-sonar-small-128k-chat", |
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"llama-3.1-8b-instruct", |
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"llama-3.1-70b-instruct", |
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"/models/LiquidCloud", |
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] |
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model_aliases = { |
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"sonar-online": "llama-3.1-sonar-large-128k-online", |
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"sonar-online": "sonar-small-128k-online", |
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"sonar-chat": "llama-3.1-sonar-large-128k-chat", |
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"sonar-chat": "llama-3.1-sonar-small-128k-chat", |
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"llama-3.1-8b": "llama-3.1-8b-instruct", |
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"llama-3.1-70b": "llama-3.1-70b-instruct", |
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"lfm-40b": "/models/LiquidCloud", |
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} |
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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: str = None, |
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**kwargs |
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) -> AsyncResult: |
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headers = { |
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"User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0", |
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"Accept": "*/*", |
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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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"Origin": cls.url, |
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"Connection": "keep-alive", |
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"Referer": f"{cls.url}/", |
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"Sec-Fetch-Dest": "empty", |
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"Sec-Fetch-Mode": "cors", |
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"Sec-Fetch-Site": "same-site", |
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"TE": "trailers", |
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} |
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async with StreamSession(headers=headers, proxies={"all": proxy}) as session: |
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t = format(random.getrandbits(32), "08x") |
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async with session.get( |
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f"{API_URL}?EIO=4&transport=polling&t={t}" |
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) as response: |
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await raise_for_status(response) |
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text = await response.text() |
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assert text.startswith("0") |
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sid = json.loads(text[1:])["sid"] |
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post_data = '40{"jwt":"anonymous-ask-user"}' |
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async with session.post( |
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f"{API_URL}?EIO=4&transport=polling&t={t}&sid={sid}", |
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data=post_data |
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) as response: |
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await raise_for_status(response) |
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assert await response.text() == "OK" |
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async with session.ws_connect(f"{WS_URL}?EIO=4&transport=websocket&sid={sid}", autoping=False) as ws: |
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await ws.send_str("2probe") |
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assert(await ws.receive_str() == "3probe") |
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await ws.send_str("5") |
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assert(await ws.receive_str()) |
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assert(await ws.receive_str() == "6") |
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message_data = { |
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"version": "2.5", |
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"source": "default", |
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"model": cls.get_model(model), |
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"messages": messages |
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} |
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await ws.send_str("42" + json.dumps(["perplexity_labs", message_data])) |
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last_message = 0 |
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while True: |
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message = await ws.receive_str() |
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if message == "2": |
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if last_message == 0: |
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raise RuntimeError("Unknown error") |
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await ws.send_str("3") |
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continue |
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try: |
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data = json.loads(message[2:])[1] |
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yield data["output"][last_message:] |
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last_message = len(data["output"]) |
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if data["final"]: |
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break |
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except: |
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raise RuntimeError(f"Message: {message}") |
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