from __future__ import annotations
import time
from hashlib import sha256
from aiohttp import BaseConnector, ClientSession
from ...errors import RateLimitError
from ...requests import raise_for_status
from ...requests.aiohttp import get_connector
from ...typing import AsyncResult, Messages
from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin
class AIChatFree(AsyncGeneratorProvider, ProviderModelMixin):
url = "https://aichatfree.info/"
working = False
supports_stream = True
supports_message_history = True
default_model = 'gemini-pro'
@classmethod
async def create_async_generator(
cls,
model: str,
messages: Messages,
proxy: str = None,
connector: BaseConnector = None,
**kwargs,
) -> AsyncResult:
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0",
"Accept": "*/*",
"Accept-Language": "en-US,en;q=0.5",
"Accept-Encoding": "gzip, deflate, br",
"Content-Type": "text/plain;charset=UTF-8",
"Referer": f"{cls.url}/",
"Origin": cls.url,
"Sec-Fetch-Dest": "empty",
"Sec-Fetch-Mode": "cors",
"Sec-Fetch-Site": "same-origin",
"Connection": "keep-alive",
"TE": "trailers",
}
async with ClientSession(
connector=get_connector(connector, proxy), headers=headers
) as session:
timestamp = int(time.time() * 1e3)
data = {
"messages": [
{
"role": "model" if message["role"] == "assistant" else "user",
"parts": [{"text": message["content"]}],
}
for message in messages
],
"time": timestamp,
"pass": None,
"sign": generate_signature(timestamp, messages[-1]["content"]),
}
async with session.post(
f"{cls.url}/api/generate", json=data, proxy=proxy
) as response:
if response.status == 500:
if "Quota exceeded" in await response.text():
raise RateLimitError(
f"Response {response.status}: Rate limit reached"
)
await raise_for_status(response)
async for chunk in response.content.iter_any():
yield chunk.decode(errors="ignore")
def generate_signature(time: int, text: str, secret: str = ""):
message = f"{time}:{text}:{secret}"
return sha256(message.encode()).hexdigest()
