from __future__ import annotations
import json
from functools import partialmethod
from typing import AsyncGenerator
from urllib.parse import urlparse
from curl_cffi.requests import AsyncSession, Session, Response
from .webdriver import WebDriver, WebDriverSession, bypass_cloudflare, get_driver_cookies
class StreamResponse:
"""
A wrapper class for handling asynchronous streaming responses.
Attributes:
inner (Response): The original Response object.
"""
def __init__(self, inner: Response) -> None:
"""Initialize the StreamResponse with the provided Response object."""
self.inner: Response = inner
async def text(self) -> str:
"""Asynchronously get the response text."""
return await self.inner.atext()
def raise_for_status(self) -> None:
"""Raise an HTTPError if one occurred."""
self.inner.raise_for_status()
async def json(self, **kwargs) -> dict:
"""Asynchronously parse the JSON response content."""
return json.loads(await self.inner.acontent(), **kwargs)
async def iter_lines(self) -> AsyncGenerator[bytes, None]:
"""Asynchronously iterate over the lines of the response."""
async for line in self.inner.aiter_lines():
yield line
async def iter_content(self) -> AsyncGenerator[bytes, None]:
"""Asynchronously iterate over the response content."""
async for chunk in self.inner.aiter_content():
yield chunk
async def __aenter__(self):
"""Asynchronously enter the runtime context for the response object."""
inner: Response = await self.inner
self.inner = inner
self.request = inner.request
self.status_code: int = inner.status_code
self.reason: str = inner.reason
self.ok: bool = inner.ok
self.headers = inner.headers
self.cookies = inner.cookies
return self
async def __aexit__(self, *args):
"""Asynchronously exit the runtime context for the response object."""
await self.inner.aclose()
class StreamSession(AsyncSession):
"""
An asynchronous session class for handling HTTP requests with streaming.
Inherits from AsyncSession.
"""
def request(
self, method: str, url: str, **kwargs
) -> StreamResponse:
"""Create and return a StreamResponse object for the given HTTP request."""
return StreamResponse(super().request(method, url, stream=True, **kwargs))
# Defining HTTP methods as partial methods of the request method.
head = partialmethod(request, "HEAD")
get = partialmethod(request, "GET")
post = partialmethod(request, "POST")
put = partialmethod(request, "PUT")
patch = partialmethod(request, "PATCH")
delete = partialmethod(request, "DELETE")
def get_session_from_browser(url: str, webdriver: WebDriver = None, proxy: str = None, timeout: int = 120) -> Session:
"""
Create a Session object using a WebDriver to handle cookies and headers.
Args:
url (str): The URL to navigate to using the WebDriver.
webdriver (WebDriver, optional): The WebDriver instance to use.
proxy (str, optional): Proxy server to use for the Session.
timeout (int, optional): Timeout in seconds for the WebDriver.
Returns:
Session: A Session object configured with cookies and headers from the WebDriver.
"""
with WebDriverSession(webdriver, "", proxy=proxy, virtual_display=True) as driver:
bypass_cloudflare(driver, url, timeout)
cookies = get_driver_cookies(driver)
user_agent = driver.execute_script("return navigator.userAgent")
parse = urlparse(url)
return Session(
cookies=cookies,
headers={
'accept': '*/*',
'authority': parse.netloc,
'origin': f'{parse.scheme}://{parse.netloc}',
'referer': url,
'sec-fetch-dest': 'empty',
'sec-fetch-mode': 'cors',
'sec-fetch-site': 'same-origin',
'user-agent': user_agent
},
proxies={"https": proxy, "http": proxy},
timeout=timeout,
impersonate="chrome110"
)
