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from __future__ import annotations
import time, hashlib, random
from ..typing import AsyncResult, Messages
from ..requests import StreamSession
from .base_provider import AsyncGeneratorProvider
from ..errors import RateLimitError
domains = [
"https://s.aifree.site",
"https://v.aifree.site/"
]
class FreeGpt(AsyncGeneratorProvider):
url = "https://freegptsnav.aifree.site"
working = True
supports_message_history = True
supports_system_message = True
supports_gpt_35_turbo = True
@classmethod
async def create_async_generator(
cls,
model: str,
messages: Messages,
proxy: str = None,
timeout: int = 120,
**kwargs
) -> AsyncResult:
async with StreamSession(
impersonate="chrome107",
timeout=timeout,
proxies={"https": proxy}
) as session:
prompt = messages[-1]["content"]
timestamp = int(time.time())
data = {
"messages": messages,
"time": timestamp,
"pass": None,
"sign": generate_signature(timestamp, prompt)
}
domain = random.choice(domains)
async with session.post(f"{domain}/api/generate", json=data) as response:
response.raise_for_status()
async for chunk in response.iter_content():
chunk = chunk.decode()
if chunk == "当前地区当日额度已消耗完":
raise RateLimitError("Rate limit reached")
yield chunk
def generate_signature(timestamp: int, message: str, secret: str = ""):
data = f"{timestamp}:{message}:{secret}"
return hashlib.sha256(data.encode()).hexdigest()
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