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include private functions from twisted
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@ -16,10 +16,10 @@ import logging
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from zope.interface import implementer
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from OpenSSL import SSL, crypto
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from twisted.internet._idna import _idnaBytes
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from twisted.internet._sslverify import _defaultCurveName, _tolerateErrors
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from twisted.internet._sslverify import _defaultCurveName
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from twisted.internet.interfaces import IOpenSSLClientConnectionCreator
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from twisted.internet.ssl import CertificateOptions, ContextFactory
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from twisted.python.failure import Failure
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logger = logging.getLogger(__name__)
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@ -53,6 +53,39 @@ class ServerContextFactory(ContextFactory):
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return self._context
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def _idnaBytes(text):
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"""
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Convert some text typed by a human into some ASCII bytes. This is a
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copy of twisted.internet._idna._idnaBytes. For documentation, see the
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twisted documentation.
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"""
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try:
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import idna
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except ImportError:
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return text.encode("idna")
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else:
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return idna.encode(text)
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def _tolerateErrors(wrapped):
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"""
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Wrap up an info_callback for pyOpenSSL so that if something goes wrong
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the error is immediately logged and the connection is dropped if possible.
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This is a copy of twisted.internet._sslverify._tolerateErrors. For
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documentation, see the twisted documentation.
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"""
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def infoCallback(connection, where, ret):
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try:
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return wrapped(connection, where, ret)
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except: # noqa: E722, taken from the twisted implementation
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f = Failure()
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logger.exception("Error during info_callback")
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connection.get_app_data().failVerification(f)
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return infoCallback
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@implementer(IOpenSSLClientConnectionCreator)
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class ClientTLSOptions(object):
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"""
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