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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 ..errors import ResponseError |
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from ..providers.response import FinishReason, Sources |
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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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label = "Perplexity Labs" |
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url = "https://labs.perplexity.ai" |
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working = True |
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active_by_default = True |
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default_model = "r1-1776" |
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models = [ |
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default_model, |
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"sonar-pro", |
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"sonar", |
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"sonar-reasoning", |
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"sonar-reasoning-pro", |
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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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"Origin": cls.url, |
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"Referer": f"{cls.url}/", |
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} |
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async with StreamSession(headers=headers, proxy=proxy, impersonate="chrome") 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.get( |
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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()).startswith("40") |
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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() == "6") |
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format_messages = [] |
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last_is_assistant = False |
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for message in messages: |
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if message["role"] == "assistant": |
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if last_is_assistant: |
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continue |
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last_is_assistant = True |
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else: |
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last_is_assistant = False |
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if isinstance(message["content"], str): |
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format_messages.append({ |
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"role": message["role"], |
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"content": message["content"] |
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}) |
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message_data = { |
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"version": "2.18", |
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"source": "default", |
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"model": model, |
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"messages": format_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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if not message.startswith("42"): |
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continue |
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parsed_data = json.loads(message[2:]) |
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message_type = parsed_data[0] |
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data = parsed_data[1] |
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if message_type.endswith("_query_progress") and data.get("status") == "failed": |
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error_message = data.get("text", "Unknown API error") |
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raise ResponseError(f"API Error: {error_message}\n") |
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if "output" in data: |
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if last_message == 0 and model == cls.default_model: |
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yield "<think>" |
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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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if data["citations"]: |
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yield Sources(data["citations"]) |
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yield FinishReason("stop") |
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break |
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except ResponseError as e: |
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raise e |
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except Exception as e: |
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raise ResponseError(f"Error processing message: {message}") from e |
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