71 lines
2.9 KiB
Diff
71 lines
2.9 KiB
Diff
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diff --git a/Doc/library/http.client.rst b/Doc/library/http.client.rst
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index 2f59ece..d756916 100644
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--- a/Doc/library/http.client.rst
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+++ b/Doc/library/http.client.rst
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@@ -88,6 +88,11 @@ The module provides the following classes:
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:func:`ssl._create_unverified_context` can be passed to the *context*
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parameter.
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+ .. versionchanged:: 3.7.4
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+ This class now enables TLS 1.3
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+ :attr:`ssl.SSLContext.post_handshake_auth` for the default *context* or
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+ when *cert_file* is passed with a custom *context*.
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+
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.. deprecated:: 3.6
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*key_file* and *cert_file* are deprecated in favor of *context*.
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diff --git a/Lib/http/client.py b/Lib/http/client.py
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index 1a6bd8a..f0d2642 100644
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--- a/Lib/http/client.py
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+++ b/Lib/http/client.py
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@@ -1390,6 +1390,9 @@ else:
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self.cert_file = cert_file
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if context is None:
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context = ssl._create_default_https_context()
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+ # enable PHA for TLS 1.3 connections if available
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+ if context.post_handshake_auth is not None:
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+ context.post_handshake_auth = True
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will_verify = context.verify_mode != ssl.CERT_NONE
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if check_hostname is None:
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check_hostname = context.check_hostname
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@@ -1398,6 +1401,10 @@ else:
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"either CERT_OPTIONAL or CERT_REQUIRED")
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if key_file or cert_file:
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context.load_cert_chain(cert_file, key_file)
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+ # cert and key file means the user wants to authenticate.
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+ # enable TLS 1.3 PHA implicitly even for custom contexts.
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+ if context.post_handshake_auth is not None:
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+ context.post_handshake_auth = True
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self._context = context
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self._check_hostname = check_hostname
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diff --git a/Lib/test/test_httplib.py b/Lib/test/test_httplib.py
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index 714d521..5795b7a 100644
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--- a/Lib/test/test_httplib.py
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+++ b/Lib/test/test_httplib.py
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@@ -1709,6 +1709,24 @@ class HTTPSTest(TestCase):
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self.assertEqual(h, c.host)
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self.assertEqual(p, c.port)
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+ def test_tls13_pha(self):
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+ import ssl
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+ if not ssl.HAS_TLSv1_3:
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+ self.skipTest('TLS 1.3 support required')
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+ # just check status of PHA flag
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+ h = client.HTTPSConnection('localhost', 443)
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+ self.assertTrue(h._context.post_handshake_auth)
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+
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+ context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
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+ self.assertFalse(context.post_handshake_auth)
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+ h = client.HTTPSConnection('localhost', 443, context=context)
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+ self.assertIs(h._context, context)
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+ self.assertFalse(h._context.post_handshake_auth)
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+
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+ h = client.HTTPSConnection('localhost', 443, context=context,
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+ cert_file=CERT_localhost)
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+ self.assertTrue(h._context.post_handshake_auth)
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+
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class RequestBodyTest(TestCase):
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"""Test cases where a request includes a message body."""
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