Vishvananda Ishaya
a870dfae7d
* Cleans up service for objectstore and vncproxy * Fixes virt.fake to be runnable via a flag Change-Id: I18e05a4d727bbbd3481063623dc3b6ad52e233d4
136 lines
4.3 KiB
Python
136 lines
4.3 KiB
Python
#!/usr/bin/env python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2010 Openstack, LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Auth Components for VNC Console."""
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import time
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import urlparse
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import webob
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from nova import context
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from nova import flags
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from nova import log as logging
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from nova import manager
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from nova import rpc
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from nova import utils
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from nova import vnc
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LOG = logging.getLogger('nova.vncproxy')
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FLAGS = flags.FLAGS
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class VNCNovaAuthMiddleware(object):
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"""Implementation of Middleware to Handle Nova Auth."""
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def __init__(self, app):
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self.app = app
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self.token_cache = {}
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utils.LoopingCall(self.delete_expired_cache_items).start(1)
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@webob.dec.wsgify
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def __call__(self, req):
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token = req.params.get('token')
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if not token:
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referrer = req.environ.get('HTTP_REFERER')
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auth_params = urlparse.parse_qs(urlparse.urlparse(referrer).query)
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if 'token' in auth_params:
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token = auth_params['token'][0]
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connection_info = self.get_token_info(token)
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if not connection_info:
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LOG.audit(_("Unauthorized Access: (%s)"), req.environ)
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return webob.exc.HTTPForbidden(detail='Unauthorized')
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if req.path == vnc.proxy.WS_ENDPOINT:
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req.environ['vnc_host'] = connection_info['host']
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req.environ['vnc_port'] = int(connection_info['port'])
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return req.get_response(self.app)
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def get_token_info(self, token):
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if token in self.token_cache:
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return self.token_cache[token]
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rval = rpc.call(context.get_admin_context(),
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FLAGS.vncproxy_topic,
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{"method": "check_token", "args": {'token': token}})
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if rval:
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self.token_cache[token] = rval
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return rval
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def delete_expired_cache_items(self):
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now = time.time()
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to_delete = []
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for k, v in self.token_cache.items():
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if now - v['last_activity_at'] > FLAGS.vnc_token_ttl:
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to_delete.append(k)
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for k in to_delete:
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del self.token_cache[k]
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class LoggingMiddleware(object):
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"""Middleware for basic vnc-specific request logging."""
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def __init__(self, app):
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self.app = app
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@webob.dec.wsgify
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def __call__(self, req):
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if req.path == vnc.proxy.WS_ENDPOINT:
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LOG.info(_("Received Websocket Request: %s"), req.url)
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else:
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LOG.info(_("Received Request: %s"), req.url)
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return req.get_response(self.app)
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class VNCProxyAuthManager(manager.Manager):
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"""Manages token based authentication."""
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def __init__(self, scheduler_driver=None, *args, **kwargs):
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super(VNCProxyAuthManager, self).__init__(*args, **kwargs)
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self.tokens = {}
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utils.LoopingCall(self._delete_expired_tokens).start(1)
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def authorize_vnc_console(self, context, token, host, port):
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self.tokens[token] = {'host': host,
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'port': port,
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'last_activity_at': time.time()}
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token_dict = self.tokens[token]
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LOG.audit(_("Received Token: %(token)s, %(token_dict)s)"), locals())
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def check_token(self, context, token):
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token_valid = token in self.tokens
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LOG.audit(_("Checking Token: %(token)s, %(token_valid)s)"), locals())
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if token_valid:
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return self.tokens[token]
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def _delete_expired_tokens(self):
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now = time.time()
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to_delete = []
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for k, v in self.tokens.items():
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if now - v['last_activity_at'] > FLAGS.vnc_token_ttl:
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to_delete.append(k)
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for k in to_delete:
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LOG.audit(_("Deleting Expired Token: %s)"), k)
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del self.tokens[k]
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