[rh:requests] Add handler for requests HTTP library (#3668)

Adds support for HTTPS proxies and persistent connections (keep-alive)

Closes https://github.com/yt-dlp/yt-dlp/issues/1890
Resolves https://github.com/yt-dlp/yt-dlp/issues/4070
Resolves https://github.com/ytdl-org/youtube-dl/issues/32549
Resolves https://github.com/ytdl-org/youtube-dl/issues/14523
Resolves https://github.com/ytdl-org/youtube-dl/issues/13734

Authored by: coletdjnz, Grub4K, bashonly

yt_dlp/networking/_helper.py

@@ -11,7 +11,7 @@ import urllib.request
 
 from .exceptions import RequestError, UnsupportedRequest
 from ..dependencies import certifi
-from ..socks import ProxyType
+from ..socks import ProxyType, sockssocket
 from ..utils import format_field, traverse_obj
 
 if typing.TYPE_CHECKING:
@@ -224,6 +224,24 @@ def _socket_connect(ip_addr, timeout, source_address):
         raise
 
 
+def create_socks_proxy_socket(dest_addr, proxy_args, proxy_ip_addr, timeout, source_address):
+    af, socktype, proto, canonname, sa = proxy_ip_addr
+    sock = sockssocket(af, socktype, proto)
+    try:
+        connect_proxy_args = proxy_args.copy()
+        connect_proxy_args.update({'addr': sa[0], 'port': sa[1]})
+        sock.setproxy(**connect_proxy_args)
+        if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:  # noqa: E721
+            sock.settimeout(timeout)
+        if source_address:
+            sock.bind(source_address)
+        sock.connect(dest_addr)
+        return sock
+    except socket.error:
+        sock.close()
+        raise
+
+
 def create_connection(
     address,
     timeout=socket._GLOBAL_DEFAULT_TIMEOUT,