138 lines
4.7 KiB
Python
Executable File
138 lines
4.7 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# pylint: disable-msg=C0103
|
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2010 United States Government as represented by the
|
|
# Administrator of the National Aeronautics and Space Administration.
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""Ajax Console Proxy Server"""
|
|
|
|
from eventlet import greenthread
|
|
from eventlet.green import urllib2
|
|
|
|
import exceptions
|
|
import gettext
|
|
import logging
|
|
import os
|
|
import sys
|
|
import time
|
|
import urlparse
|
|
|
|
# If ../nova/__init__.py exists, add ../ to Python search path, so that
|
|
# it will override what happens to be installed in /usr/(local/)lib/python...
|
|
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
|
|
os.pardir,
|
|
os.pardir))
|
|
if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
|
|
sys.path.insert(0, possible_topdir)
|
|
|
|
gettext.install('nova', unicode=1)
|
|
|
|
from nova import flags
|
|
from nova import log as logging
|
|
from nova import rpc
|
|
from nova import utils
|
|
from nova import wsgi
|
|
|
|
FLAGS = flags.FLAGS
|
|
|
|
flags.DEFINE_integer('ajax_console_idle_timeout', 300,
|
|
'Seconds before idle connection destroyed')
|
|
|
|
LOG = logging.getLogger('nova.ajax_console_proxy')
|
|
LOG.setLevel(logging.DEBUG)
|
|
LOG.addHandler(logging.StreamHandler())
|
|
|
|
|
|
class AjaxConsoleProxy(object):
|
|
tokens = {}
|
|
|
|
def __call__(self, env, start_response):
|
|
try:
|
|
req_url = '%s://%s%s?%s' % (env['wsgi.url_scheme'],
|
|
env['HTTP_HOST'],
|
|
env['PATH_INFO'],
|
|
env['QUERY_STRING'])
|
|
if 'HTTP_REFERER' in env:
|
|
auth_url = env['HTTP_REFERER']
|
|
else:
|
|
auth_url = req_url
|
|
|
|
auth_params = urlparse.parse_qs(urlparse.urlparse(auth_url).query)
|
|
parsed_url = urlparse.urlparse(req_url)
|
|
|
|
auth_info = AjaxConsoleProxy.tokens[auth_params['token'][0]]
|
|
args = auth_info['args']
|
|
auth_info['last_activity'] = time.time()
|
|
|
|
remote_url = ("http://%s:%s%s?token=%s" % (
|
|
str(args['host']),
|
|
str(args['port']),
|
|
parsed_url.path,
|
|
str(args['token'])))
|
|
|
|
opener = urllib2.urlopen(remote_url, env['wsgi.input'].read())
|
|
body = opener.read()
|
|
info = opener.info()
|
|
|
|
start_response("200 OK", info.dict.items())
|
|
return body
|
|
except (exceptions.KeyError):
|
|
if env['PATH_INFO'] != '/favicon.ico':
|
|
LOG.audit("Unauthorized request %s, %s"
|
|
% (req_url, str(env)))
|
|
start_response("401 NOT AUTHORIZED", [])
|
|
return "Not Authorized"
|
|
except Exception:
|
|
start_response("500 ERROR", [])
|
|
return "Server Error"
|
|
|
|
def register_listeners(self):
|
|
class Callback:
|
|
def __call__(self, data, message):
|
|
if data['method'] == 'authorize_ajax_console':
|
|
AjaxConsoleProxy.tokens[data['args']['token']] = \
|
|
{'args': data['args'], 'last_activity': time.time()}
|
|
|
|
conn = rpc.Connection.instance(new=True)
|
|
consumer = rpc.TopicConsumer(
|
|
connection=conn,
|
|
topic=FLAGS.ajax_console_proxy_topic)
|
|
consumer.register_callback(Callback())
|
|
|
|
def delete_expired_tokens():
|
|
now = time.time()
|
|
to_delete = []
|
|
for k, v in AjaxConsoleProxy.tokens.items():
|
|
if now - v['last_activity'] > FLAGS.ajax_console_idle_timeout:
|
|
to_delete.append(k)
|
|
|
|
for k in to_delete:
|
|
del AjaxConsoleProxy.tokens[k]
|
|
|
|
utils.LoopingCall(consumer.fetch, auto_ack=True,
|
|
enable_callbacks=True).start(0.1)
|
|
utils.LoopingCall(delete_expired_tokens).start(1)
|
|
|
|
if __name__ == '__main__':
|
|
utils.default_flagfile()
|
|
FLAGS(sys.argv)
|
|
server = wsgi.Server()
|
|
acp = AjaxConsoleProxy()
|
|
acp.register_listeners()
|
|
server.start(acp, FLAGS.ajax_console_proxy_port, host='0.0.0.0')
|
|
server.wait()
|