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gh-94172: urllib.request avoids deprecated key_file/cert_file by vstinner · Pull Request #94232 · python/cpython · GitHub
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gh-94172: urllib.request avoids deprecated key_file/cert_file #94232

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Merged
vstinner merged 1 commit into from
Jun 26, 2022
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gh-94172: urllib.request avoids deprecated key_file/cert_file #94232

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gh-94172: urllib.request avoids deprecated key_file/cert_file 
The urllib.request module no longer uses the deprecated key_file and
cert_file parameter of the http.client module.
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@vstinner
vstinner committed Jun 24, 2022
commit 0584d9941a24021f0e037a7e7d36884dd79fc22e
14 changes: 11 additions & 3 deletions Lib/urllib/request.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1990,9 +1990,17 @@ def http_error_default(self, url, fp, errcode, errmsg, headers):

if _have_ssl:
def _https_connection(self, host):
return http.client.HTTPSConnection(host,
key_file=self.key_file,
cert_file=self.cert_file)
if self.key_file or self.cert_file:
http_version = http.client.HTTPSConnection._http_vsn
context = http.client._create_https_context(http_version)
context.load_cert_chain(self.cert_file, self.key_file)
# cert and key file means the user wants to authenticate.
# enable TLS 1.3 PHA implicitly even for custom contexts.
if context.post_handshake_auth is not None:
context.post_handshake_auth = True

@vstinner vstinner Jun 24, 2022

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This post_handshake_auth code is already in _create_https_context(), but I copied Python 3.11 code which also checks again post_handshake_auth after calling load_cert_chain().

else:
context = None
return http.client.HTTPSConnection(host, context=context)

def open_https(self, url, data=None):
"""Use HTTPS protocol."""
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