Add new option --source-address

Closes #3618, fixes #721, fixes #2481, fixes #4551, closes #1020.

youtube_dl/utils.py

@@ -10,6 +10,7 @@ import ctypes
 import datetime
 import email.utils
 import errno
+import functools
 import gzip
 import itertools
 import io
@@ -34,7 +35,9 @@ from .compat import (
     compat_chr,
     compat_getenv,
     compat_html_entities,
+    compat_http_client,
     compat_parse_qs,
+    compat_socket_create_connection,
     compat_str,
     compat_urllib_error,
     compat_urllib_parse,
@@ -391,13 +394,14 @@ def formatSeconds(secs):
         return '%d' % secs
 
 
-def make_HTTPS_handler(opts_no_check_certificate, **kwargs):
+def make_HTTPS_handler(params, **kwargs):
+    opts_no_check_certificate = params.get('nocheckcertificate', False)
     if hasattr(ssl, 'create_default_context'):  # Python >= 3.4 or 2.7.9
         context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
         if opts_no_check_certificate:
             context.verify_mode = ssl.CERT_NONE
         try:
-            return compat_urllib_request.HTTPSHandler(context=context, **kwargs)
+            return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
         except TypeError:
             # Python 2.7.8
             # (create_default_context present but HTTPSHandler has no context=)
@@ -420,17 +424,14 @@ def make_HTTPS_handler(opts_no_check_certificate, **kwargs):
                 except ssl.SSLError:
                     self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23)
 
-        class HTTPSHandlerV3(compat_urllib_request.HTTPSHandler):
-            def https_open(self, req):
-                return self.do_open(HTTPSConnectionV3, req)
-        return HTTPSHandlerV3(**kwargs)
+        return YoutubeDLHTTPSHandler(params, https_conn_class=HTTPSConnectionV3, **kwargs)
     else:  # Python < 3.4
         context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
         context.verify_mode = (ssl.CERT_NONE
                                if opts_no_check_certificate
                                else ssl.CERT_REQUIRED)
         context.set_default_verify_paths()
-        return compat_urllib_request.HTTPSHandler(context=context, **kwargs)
+        return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
 
 
 class ExtractorError(Exception):
@@ -544,6 +545,26 @@ class ContentTooShortError(Exception):
         self.expected = expected
 
 
+def _create_http_connection(ydl_handler, http_class, is_https=False, *args, **kwargs):
+    hc = http_class(*args, **kwargs)
+    source_address = ydl_handler._params.get('source_address')
+    if source_address is not None:
+        sa = (source_address, 0)
+        if hasattr(hc, 'source_address'):  # Python 2.7+
+            hc.source_address = sa
+        else:  # Python 2.6
+            def _hc_connect(self, *args, **kwargs):
+                sock = compat_socket_create_connection(
+                    (self.host, self.port), self.timeout, sa)
+                if is_https:
+                    self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file)
+                else:
+                    self.sock = sock
+            hc.connect = functools.partial(_hc_connect, hc)
+
+    return hc
+
+
 class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     """Handler for HTTP requests and responses.
 
@@ -562,6 +583,15 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     public domain.
     """
 
+    def __init__(self, params, *args, **kwargs):
+        compat_urllib_request.HTTPHandler.__init__(self, *args, **kwargs)
+        self._params = params
+
+    def http_open(self, req):
+        return self.do_open(functools.partial(
+            _create_http_connection, self, compat_http_client.HTTPConnection),
+            req)
+
     @staticmethod
     def deflate(data):
         try:
@@ -631,6 +661,18 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     https_response = http_response
 
 
+class YoutubeDLHTTPSHandler(compat_urllib_request.HTTPSHandler):
+    def __init__(self, params, https_conn_class=None, *args, **kwargs):
+        compat_urllib_request.HTTPSHandler.__init__(self, *args, **kwargs)
+        self._https_conn_class = https_conn_class or compat_http_client.HTTPSConnection
+        self._params = params
+
+    def https_open(self, req):
+        return self.do_open(functools.partial(
+            _create_http_connection, self, self._https_conn_class, True),
+            req)
+
+
 def parse_iso8601(date_str, delimiter='T'):
     """ Return a UNIX timestamp from the given date """