55 lines
2.1 KiB
Python
55 lines
2.1 KiB
Python
# 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.
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
|
|
from murano.common import wsgi
|
|
|
|
ssl_middleware_opts = [
|
|
cfg.StrOpt('secure_proxy_ssl_header',
|
|
default='X-Forwarded-Proto',
|
|
help="The HTTP Header that will be used to determine which "
|
|
"the original request protocol scheme was, even if it was "
|
|
"removed by an SSL terminator proxy.")
|
|
]
|
|
cfg.CONF.register_opts(ssl_middleware_opts)
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class SSLMiddleware(wsgi.Middleware):
|
|
"""Replaces the request wsgi.url_scheme environment
|
|
|
|
A middleware that replaces the request wsgi.url_scheme environment
|
|
variable with the value of HTTP header configured in
|
|
secure_proxy_ssl_header if exists in the incoming request.
|
|
This is useful if the server is behind a SSL termination proxy.
|
|
"""
|
|
|
|
@classmethod
|
|
def factory(cls, global_conf, **local_conf):
|
|
def filter(app):
|
|
return cls(app)
|
|
return filter
|
|
|
|
def __init__(self, application):
|
|
super(SSLMiddleware, self).__init__(application)
|
|
self.secure_proxy_ssl_header = 'HTTP_{0}'.format(
|
|
cfg.CONF.secure_proxy_ssl_header.upper().replace('-', '_'))
|
|
|
|
def process_request(self, req):
|
|
LOG.debug('Default url_scheme: {0}. {1}: {2}'.format(
|
|
req.environ['wsgi.url_scheme'], self.secure_proxy_ssl_header,
|
|
req.environ.get(self.secure_proxy_ssl_header)))
|
|
req.environ['wsgi.url_scheme'] = req.environ.get(
|
|
self.secure_proxy_ssl_header, req.environ['wsgi.url_scheme'])
|