from __future__ import annotations
import json, sys, asyncio
from functools import partialmethod
from aiohttp import StreamReader
from aiohttp.base_protocol import BaseProtocol
from curl_cffi.requests import AsyncSession as BaseSession
from curl_cffi.requests import Response
from curl_cffi import AsyncCurl
is_newer_0_5_9 = hasattr(AsyncCurl, "remove_handle")
is_newer_0_5_8 = hasattr(BaseSession, "_set_cookies")
class StreamResponse:
def __init__(self, inner: Response, content: StreamReader, request):
self.inner = inner
self.content = content
self.request = request
self.status_code = inner.status_code
self.reason = inner.reason
self.ok = inner.ok
self.headers = inner.headers
self.cookies = inner.cookies
async def text(self) -> str:
content = await self.content.read()
return content.decode()
def raise_for_status(self):
if not self.ok:
raise RuntimeError(f"HTTP Error {self.status_code}: {self.reason}")
async def json(self, **kwargs):
return json.loads(await self.content.read(), **kwargs)
class StreamRequest:
def __init__(self, session: AsyncSession, method: str, url: str, **kwargs):
self.session = session
self.loop = session.loop if session.loop else asyncio.get_running_loop()
self.content = StreamReader(
BaseProtocol(session.loop),
sys.maxsize,
loop=session.loop
)
self.method = method
self.url = url
if "proxy" in kwargs:
proxy = kwargs.pop("proxy")
if proxy:
kwargs["proxies"] = {"http": proxy, "https": proxy}
self.options = kwargs
def on_content(self, data):
if not self.enter.done():
self.enter.set_result(None)
self.content.feed_data(data)
def on_done(self, task):
if not self.enter.done():
self.enter.set_result(None)
self.content.feed_eof()
async def __aenter__(self) -> StreamResponse:
self.curl = await self.session.pop_curl()
self.enter = self.loop.create_future()
request, _, header_buffer = self.session._set_curl_options(
self.curl,
self.method,
self.url,
content_callback=self.on_content,
**self.options
)
if is_newer_0_5_9:
self.handle = self.session.acurl.add_handle(self.curl)
else:
await self.session.acurl.add_handle(self.curl, False)
self.handle = self.session.acurl._curl2future[self.curl]
self.handle.add_done_callback(self.on_done)
await self.enter
if is_newer_0_5_8:
response = self.session._parse_response(self.curl, _, header_buffer)
response.request = request
else:
response = self.session._parse_response(self.curl, request, _, header_buffer)
return StreamResponse(
response,
self.content,
request
)
async def __aexit__(self, exc_type, exc, tb):
if not self.handle.done():
self.session.acurl.set_result(self.curl)
self.curl.clean_after_perform()
self.curl.reset()
self.session.push_curl(self.curl)
class AsyncSession(BaseSession):
def request(
self,
method: str,
url: str,
**kwargs
) -> StreamRequest:
return StreamRequest(self, method, url, **kwargs)
head = partialmethod(request, "HEAD")
get = partialmethod(request, "GET")
post = partialmethod(request, "POST")
put = partialmethod(request, "PUT")
patch = partialmethod(request, "PATCH")
delete = partialmethod(request, "DELETE")
