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Use TLSv1.2 for fake servers in tests (#8208)

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Some Linux distros have begun disabling TLSv1.0 and TLSv1.1 by default
for security reasons, for example in Fedora 33 onwards:

https://fedoraproject.org/wiki/Changes/StrongCryptoSettings2

Use TLSv1.2 for the fake TLS servers created in the test suite, to avoid
failures due to OpenSSL disallowing TLSv1.0:

    <twisted.python.failure.Failure OpenSSL.SSL.Error: [('SSL routines',
    'ssl_choose_client_version', 'unsupported protocol')]>

Signed-off-by: Dan Callaghan <djc@djc.id.au>
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Dan Callaghan 2020-09-11 04:49:08 +10:00 committed by GitHub
parent 95d869c357
commit c312ee3cde
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2 changed files with 2 additions and 1 deletions
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1
changelog.d/8208.misc Normal file
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@ -0,0 +1 @@
Fix tests on distros which disable TLSv1.0. Contributed by @danc86.

2
tests/http/__init__.py
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@ -145,7 +145,7 @@ class TestServerTLSConnectionFactory:
self._cert_file = create_test_cert_file(sanlist) self._cert_file = create_test_cert_file(sanlist)
def serverConnectionForTLS(self, tlsProtocol): def serverConnectionForTLS(self, tlsProtocol):
ctx = SSL.Context(SSL.TLSv1_METHOD) ctx = SSL.Context(SSL.SSLv23_METHOD)
ctx.use_certificate_file(self._cert_file) ctx.use_certificate_file(self._cert_file)
ctx.use_privatekey_file(get_test_key_file()) ctx.use_privatekey_file(get_test_key_file())
return Connection(ctx, None) return Connection(ctx, None)