153 lines
5.2 KiB
Python
153 lines
5.2 KiB
Python
# Copyright (c) 2012 OpenStack Foundation
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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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'''
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Leverages nova/consoleauth/manager.py
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'''
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"""Auth Components for Consoles."""
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import time
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from eventlet import greenpool
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import oslo_cache
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from oslo_log import log as logging
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import oslo_messaging as messaging
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from oslo_serialization import jsonutils
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import mogan.conf
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from mogan.engine import rpcapi
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LOG = logging.getLogger(__name__)
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CONF = mogan.conf.CONF
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class ConsoleAuthManager(object):
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"""Manages token based authentication."""
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target = messaging.Target(version='1.0')
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def __init__(self, host, topic):
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super(ConsoleAuthManager, self).__init__()
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self.host = host
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self.topic = topic
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self._started = False
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self._cache = None
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self._cache_server = None
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self.engine_rpcapi = rpcapi.EngineAPI()
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def init_host(self):
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self._worker_pool = greenpool.GreenPool(
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size=CONF.engine.workers_pool_size)
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self._started = True
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def del_host(self):
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self._worker_pool.waitall()
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self._started = False
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def periodic_tasks(self, context, raise_on_error=False):
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pass
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@property
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def cache(self):
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if self._cache is None:
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CONF.set_default('backend', 'dogpile.cache.memcached', 'cache')
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CONF.set_default('enabled', True, 'cache')
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cache_region = oslo_cache.create_region()
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self._cache = oslo_cache.configure_cache_region(CONF, cache_region)
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return self._cache
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@property
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def cache_server(self):
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"""Init a permanent cache region for server token storage."""
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if self._cache_server is None:
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cache_ttl = CONF.cache.expiration_time
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try:
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CONF.set_override('expiration_time', None, 'cache')
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cache_region = oslo_cache.create_region()
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self._cache_server = oslo_cache.configure_cache_region(
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CONF, cache_region)
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finally:
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CONF.set_override('expiration_time', cache_ttl, 'cache')
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return self._cache_server
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def reset(self):
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LOG.info('Reloading Mogan engine RPC API')
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self.engine_rpcapi = rpcapi.EngineAPI()
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def _get_tokens_for_server(self, server_uuid):
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tokens_str = self.cache_server.get(server_uuid.encode('UTF-8'))
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if not tokens_str:
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tokens = []
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else:
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tokens = jsonutils.loads(tokens_str)
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return tokens
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def authorize_console(self, context, token, console_type, host, port,
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internal_access_path, server_uuid,
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access_url=None):
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token_dict = {'token': token,
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'server_uuid': server_uuid,
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'console_type': console_type,
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'host': host,
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'port': port,
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'internal_access_path': internal_access_path,
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'access_url': access_url,
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'last_activity_at': time.time()}
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data = jsonutils.dumps(token_dict)
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self.cache.set(token.encode('UTF-8'), data)
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tokens = self._get_tokens_for_server(server_uuid)
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# Remove the expired tokens from cache.
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token_values = self.cache.get_multi(
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[tok.encode('UTF-8') for tok in tokens])
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tokens = [name for name, value in zip(tokens, token_values)
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if value]
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tokens.append(token)
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self.cache_server.set(server_uuid.encode('UTF-8'),
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jsonutils.dumps(tokens))
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LOG.info("Received Token: %(token)s, %(token_dict)s",
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{'token': token, 'token_dict': token_dict})
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def _validate_token(self, context, token):
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server_uuid = token['server_uuid']
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if server_uuid is None:
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return False
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return True
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# TODO(need to validate the console port)
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# return self.compute_rpcapi.validate_console_port(
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# context, server, token['port'], token['console_type'])
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def check_token(self, context, token):
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token_str = self.cache.get(token.encode('UTF-8'))
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token_valid = bool(token_str)
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LOG.info("Checking Token: %(token)s, %(token_valid)s",
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{'token': token, 'token_valid': token_valid})
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if token_valid:
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token = jsonutils.loads(token_str)
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if self._validate_token(context, token):
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return token
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def delete_tokens_for_server(self, context, server_uuid):
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tokens = self._get_tokens_for_server(server_uuid)
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self.cache.delete_multi(
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[tok.encode('UTF-8') for tok in tokens])
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self.cache_server.delete(server_uuid.encode('UTF-8'))
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