does this fix 3.8?

test/test_networking.py

@@ -26,6 +26,7 @@ import zlib
 from email.message import Message
 from http.cookiejar import CookieJar
 
+from test.conftest import validate_and_send
 from test.helper import FakeYDL, http_server_port
 from yt_dlp.cookies import YoutubeDLCookieJar
 from yt_dlp.dependencies import brotli, requests, urllib3
@@ -52,8 +53,6 @@ from yt_dlp.networking.exceptions import (
 from yt_dlp.utils._utils import _YDLLogger as FakeLogger
 from yt_dlp.utils.networking import HTTPHeaderDict, std_headers
 
-from test.conftest import validate_and_send
-
 TEST_DIR = os.path.dirname(os.path.abspath(__file__))
 
 

yt_dlp/networking/_curlcffi.py

@@ -1,5 +1,6 @@
 import io
 import math
+import urllib.parse
 
 from ._helper import InstanceStoreMixin, select_proxy
 from .common import (
@@ -124,14 +125,13 @@ class CurlCFFIRH(ImpersonateRequestHandler, InstanceStoreMixin):
 
     def _send(self, request: Request):
         max_redirects_exceeded = False
-        cookiejar = request.extensions.get('cookiejar') or self.cookiejar
         session: curl_cffi.requests.Session = self._get_instance(
-            cookiejar=cookiejar if 'cookie' not in request.headers else None)
+            cookiejar=self._get_cookiejar(request) if 'cookie' not in request.headers else None)
 
         if self.verbose:
             session.curl.setopt(CurlOpt.VERBOSE, 1)
 
-        proxies = (request.proxies or self.proxies).copy()
+        proxies = self._get_proxies(request)
         if 'no' in proxies:
             session.curl.setopt(CurlOpt.NOPROXY, proxies['no'].encode())
             proxies.pop('no', None)
@@ -140,8 +140,11 @@ class CurlCFFIRH(ImpersonateRequestHandler, InstanceStoreMixin):
         proxy = select_proxy(request.url, proxies=proxies)
         if proxy:
             session.curl.setopt(CurlOpt.PROXY, proxy.encode())
-            if proxy.startswith('https'):
+            scheme = urllib.parse.urlparse(request.url).scheme.lower()
-                # enable HTTP CONNECT for https urls
+            if scheme != 'http':
+                # Enable HTTP CONNECT for HTTPS urls.
+                # Don't use CONNECT for http for compatibility with urllib behaviour.
+                # See: https://curl.se/libcurl/c/CURLOPT_HTTPPROXYTUNNEL.html
                 session.curl.setopt(CurlOpt.HTTPPROXYTUNNEL, 1)
 
         headers = self._get_impersonate_headers(request)
@@ -155,7 +158,7 @@ class CurlCFFIRH(ImpersonateRequestHandler, InstanceStoreMixin):
             if client_certificate_password:
                 session.curl.setopt(CurlOpt.KEYPASSWD, client_certificate_password.encode())
 
-        timeout = float(request.extensions.get('timeout') or self.timeout)
+        timeout = self._calculate_timeout(request)
 
         # set CURLOPT_LOW_SPEED_LIMIT and CURLOPT_LOW_SPEED_TIME to act as a read timeout. [1]
         # curl_cffi does not currently do this. [2]

yt_dlp/networking/_requests.py

@@ -297,8 +297,7 @@ class RequestsRH(RequestHandler, InstanceStoreMixin):
 
         max_redirects_exceeded = False
 
-        session = self._get_instance(
+        session = self._get_instance(cookiejar=self._get_cookiejar(request))
-            cookiejar=request.extensions.get('cookiejar') or self.cookiejar)
 
         try:
             requests_res = session.request(
@@ -306,8 +305,8 @@ class RequestsRH(RequestHandler, InstanceStoreMixin):
                 url=request.url,
                 data=request.data,
                 headers=headers,
-                timeout=float(request.extensions.get('timeout') or self.timeout),
+                timeout=self._calculate_timeout(request),
-                proxies=request.proxies or self.proxies,
+                proxies=self._get_proxies(request),
                 allow_redirects=True,
                 stream=True
             )

yt_dlp/networking/_urllib.py

@@ -389,11 +389,11 @@ class UrllibRH(RequestHandler, InstanceStoreMixin):
         )
 
         opener = self._get_instance(
-            proxies=request.proxies or self.proxies,
+            proxies=self._get_proxies(request),
-            cookiejar=request.extensions.get('cookiejar') or self.cookiejar
+            cookiejar=self._get_cookiejar(request)
         )
         try:
-            res = opener.open(urllib_req, timeout=float(request.extensions.get('timeout') or self.timeout))
+            res = opener.open(urllib_req, timeout=self._calculate_timeout(request))
         except urllib.error.HTTPError as e:
             if isinstance(e.fp, (http.client.HTTPResponse, urllib.response.addinfourl)):
                 # Prevent file object from being closed when urllib.error.HTTPError is destroyed.

yt_dlp/networking/_websockets.py

@@ -5,20 +5,26 @@ import logging
 import ssl
 import sys
 
-from ._helper import create_connection, select_proxy, make_socks_proxy_opts, create_socks_proxy_socket
+from ._helper import (
-from .common import Response, register_rh, Features
+    create_connection,
+    create_socks_proxy_socket,
+    make_socks_proxy_opts,
+    select_proxy,
+)
+from .common import Features, Response, register_rh
 from .exceptions import (
     CertificateVerifyError,
     HTTPError,
+    ProxyError,
     RequestError,
     SSLError,
-    TransportError, ProxyError,
+    TransportError,
 )
 from .websocket import WebSocketRequestHandler, WebSocketResponse
 from ..compat import functools
 from ..dependencies import websockets
-from ..utils import int_or_none
 from ..socks import ProxyError as SocksProxyError
+from ..utils import int_or_none
 
 if not websockets:
     raise ImportError('websockets is not installed')
@@ -98,10 +104,10 @@ class WebsocketsRH(WebSocketRequestHandler):
         extensions.pop('cookiejar', None)
 
     def _send(self, request):
-        timeout = float(request.extensions.get('timeout') or self.timeout)
+        timeout = self._calculate_timeout(request)
         headers = self._merge_headers(request.headers)
         if 'cookie' not in headers:
-            cookiejar = request.extensions.get('cookiejar') or self.cookiejar
+            cookiejar = self._get_cookiejar(request)
             cookie_header = cookiejar.get_cookie_header(request.url)
             if cookie_header:
                 headers['cookie'] = cookie_header
@@ -111,7 +117,7 @@ class WebsocketsRH(WebSocketRequestHandler):
             'source_address': (self.source_address, 0) if self.source_address else None,
             'timeout': timeout
         }
-        proxy = select_proxy(request.url, request.proxies or self.proxies or {})
+        proxy = select_proxy(request.url, self._get_proxies(request))
         try:
             if proxy:
                 socks_proxy_options = make_socks_proxy_opts(proxy)

yt_dlp/networking/common.py

@@ -272,6 +272,15 @@ class RequestHandler(abc.ABC):
     def _merge_headers(self, request_headers):
         return HTTPHeaderDict(self.headers, request_headers)
 
+    def _calculate_timeout(self, request):
+        return float(request.extensions.get('timeout') or self.timeout)
+
+    def _get_cookiejar(self, request):
+        return request.extensions.get('cookiejar') or self.cookiejar
+
+    def _get_proxies(self, request):
+        return (request.proxies or self.proxies).copy()
+
     def _check_url_scheme(self, request: Request):
         scheme = urllib.parse.urlparse(request.url).scheme.lower()
         if self._SUPPORTED_URL_SCHEMES is not None and scheme not in self._SUPPORTED_URL_SCHEMES:

yt_dlp/networking/impersonate.py

@@ -1,20 +1,18 @@
 from __future__ import annotations
+
 from abc import ABC
-from typing import Optional, Any
+from typing import Any, Optional, Tuple
 
 from .common import RequestHandler, register_preference
 from .exceptions import UnsupportedRequest
 from ..compat.types import NoneType
 from ..utils.networking import std_headers
 
-
+ImpersonateTarget = Tuple[str, Optional[str], Optional[str], Optional[str]]
-ImpersonateTarget = tuple[Optional[str], Optional[str], Optional[str], Optional[str]]
 
 
 def parse_impersonate_target(target: str) -> ImpersonateTarget:
     client = version = os = os_vers = None
-    if not target:
-        return client, version, os, os_vers
     parts = target.split(':')
     if len(parts):
         client = parts[0]

yt_dlp/networking/websocket.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 import abc
 
-from .common import Response, RequestHandler
+from .common import RequestHandler, Response
 
 
 class WebSocketResponse(Response):