53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
"""
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websocket - WebSocket client library for Python
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Copyright (C) 2010 Hiroki Ohtani(liris)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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__all__ = ["HAVE_SSL", "ssl", "SSLError", "SSLWantReadError", "SSLWantWriteError"]
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try:
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import ssl
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from ssl import SSLError
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from ssl import SSLWantReadError
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from ssl import SSLWantWriteError
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if hasattr(ssl, 'SSLContext') and hasattr(ssl.SSLContext, 'check_hostname'):
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HAVE_CONTEXT_CHECK_HOSTNAME = True
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else:
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HAVE_CONTEXT_CHECK_HOSTNAME = False
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if hasattr(ssl, "match_hostname"):
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from ssl import match_hostname
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else:
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from backports.ssl_match_hostname import match_hostname
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__all__.append("match_hostname")
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__all__.append("HAVE_CONTEXT_CHECK_HOSTNAME")
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HAVE_SSL = True
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except ImportError:
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# dummy class of SSLError for ssl none-support environment.
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class SSLError(Exception):
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pass
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class SSLWantReadError(Exception):
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pass
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class SSLWantWriteError(Exception):
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pass
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ssl = lambda: None
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HAVE_SSL = False
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