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[utils] Default SSL to TLS. (Fixes #3727)

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On 2.x, we now try TLS first, and fall back to the compat 23 (basically anything) afterwards.
On 3.4+, we now use the proper function so that we get all the latest security configurations.
We allow SSLv3 though for the time being, since a lot of older pages use that.
On 3.3, we default to SSLv23 (basically "anything, including TLS") because that has the widest compatibility.
This commit is contained in:
Philipp Hagemeister
2014-09-12 07:50:31 +02:00
parent edb53e2dc3
commit aa37e3d486
1 changed files with 9 additions and 3 deletions
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12
youtube_dl/utils.py
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@@ -617,7 +617,7 @@ def make_HTTPS_handler(opts_no_check_certificate, **kwargs):
self.sock = sock self.sock = sock
self._tunnel() self._tunnel()
try: try:
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv3) self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_TLSv1)
except ssl.SSLError: except ssl.SSLError:
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23) self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23)
@@ -625,8 +625,14 @@ def make_HTTPS_handler(opts_no_check_certificate, **kwargs):
def https_open(self, req): def https_open(self, req):
return self.do_open(HTTPSConnectionV3, req) return self.do_open(HTTPSConnectionV3, req)
return HTTPSHandlerV3(**kwargs) return HTTPSHandlerV3(**kwargs)
else: elif hasattr(ssl, 'create_default_context'): # Python >= 3.4
context = ssl.SSLContext(ssl.PROTOCOL_SSLv3) context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
context.options &= ~ssl.OP_NO_SSLv3 # Allow older, not-as-secure SSLv3
if opts_no_check_certificate:
context.verify_mode = ssl.CERT_NONE
return compat_urllib_request.HTTPSHandler(context=context, **kwargs)
else: # Python < 3.4
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
context.verify_mode = (ssl.CERT_NONE context.verify_mode = (ssl.CERT_NONE
if opts_no_check_certificate if opts_no_check_certificate
else ssl.CERT_REQUIRED) else ssl.CERT_REQUIRED)