99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
# Copyright 2013 IBM Corp.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import ssl
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from oslo.config import cfg
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from neutron.openstack.common.gettextutils import _
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ssl_opts = [
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cfg.StrOpt('ca_file',
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default=None,
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help="CA certificate file to use to verify "
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"connecting clients"),
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cfg.StrOpt('cert_file',
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default=None,
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help="Certificate file to use when starting "
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"the server securely"),
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cfg.StrOpt('key_file',
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default=None,
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help="Private key file to use when starting "
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"the server securely"),
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]
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CONF = cfg.CONF
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CONF.register_opts(ssl_opts, "ssl")
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def is_enabled():
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cert_file = CONF.ssl.cert_file
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key_file = CONF.ssl.key_file
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ca_file = CONF.ssl.ca_file
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use_ssl = cert_file or key_file
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if cert_file and not os.path.exists(cert_file):
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raise RuntimeError(_("Unable to find cert_file : %s") % cert_file)
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if ca_file and not os.path.exists(ca_file):
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raise RuntimeError(_("Unable to find ca_file : %s") % ca_file)
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if key_file and not os.path.exists(key_file):
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raise RuntimeError(_("Unable to find key_file : %s") % key_file)
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if use_ssl and (not cert_file or not key_file):
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raise RuntimeError(_("When running server in SSL mode, you must "
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"specify both a cert_file and key_file "
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"option value in your configuration file"))
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return use_ssl
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def wrap(sock):
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ssl_kwargs = {
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'server_side': True,
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'certfile': CONF.ssl.cert_file,
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'keyfile': CONF.ssl.key_file,
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'cert_reqs': ssl.CERT_NONE,
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}
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if CONF.ssl.ca_file:
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ssl_kwargs['ca_certs'] = CONF.ssl.ca_file
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ssl_kwargs['cert_reqs'] = ssl.CERT_REQUIRED
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return ssl.wrap_socket(sock, **ssl_kwargs)
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_SSL_PROTOCOLS = {
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"tlsv1": ssl.PROTOCOL_TLSv1,
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"sslv23": ssl.PROTOCOL_SSLv23,
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"sslv3": ssl.PROTOCOL_SSLv3
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}
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try:
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_SSL_PROTOCOLS["sslv2"] = ssl.PROTOCOL_SSLv2
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except AttributeError:
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pass
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def validate_ssl_version(version):
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key = version.lower()
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try:
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return _SSL_PROTOCOLS[key]
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except KeyError:
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raise RuntimeError(_("Invalid SSL version : %s") % version)
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