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"""
websocket - WebSocket client library for Python
Copyright (C) 2010 Hiroki Ohtani(liris)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1335 USA
"""
__all__ = ["HAVE_SSL", "ssl", "SSLError", "SSLWantReadError", "SSLWantWriteError"]
try:
import ssl
from ssl import SSLError
from ssl import SSLWantReadError
from ssl import SSLWantWriteError
if hasattr(ssl, 'SSLContext') and hasattr(ssl.SSLContext, 'check_hostname'):
HAVE_CONTEXT_CHECK_HOSTNAME = True
else:
HAVE_CONTEXT_CHECK_HOSTNAME = False
if hasattr(ssl, "match_hostname"):
from ssl import match_hostname
else:
from backports.ssl_match_hostname import match_hostname
__all__.append("match_hostname")
__all__.append("HAVE_CONTEXT_CHECK_HOSTNAME")
HAVE_SSL = True
except ImportError:
# dummy class of SSLError for ssl none-support environment.
class SSLError(Exception):
pass
class SSLWantReadError(Exception):
pass
class SSLWantWriteError(Exception):
pass
ssl = lambda: None
HAVE_SSL = False
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