pagure-new/pagure/proxy.py

71 lines
2.6 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright © 2014 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2, or (at your option) any later
# version. This program is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY expressed or implied, including the
# implied warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details. You
# should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Any Red Hat trademarks that are incorporated in the source
# code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission
# of Red Hat, Inc.
#
'''
Makes pagure an application behind a reverse proxy and thus ensure the
redirects are using ``https``.
Source: http://flask.pocoo.org/snippets/35/ by Peter Hansen
'''
class ReverseProxied(object): # pragma: no cover
'''Wrap the application in this middleware and configure the
front-end server to add these headers, to let you quietly bind
this to a URL other than / and to an HTTP scheme that is
different than what is used locally.
In nginx:
location /myprefix {
proxy_pass http://192.168.0.1:5001;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Script-Name /myprefix;
}
In apache:
RequestHeader set X-Forwarded-Scheme https early
RequestHeader set X-Scheme https early
RequestHeader add X-Script-Name /myprefix early
RequestHeader set X-Forwarded-Proto https early
:param app: the WSGI application
'''
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
script_name = environ.get('HTTP_X_SCRIPT_NAME', '')
if script_name:
environ['SCRIPT_NAME'] = script_name
path_info = environ['PATH_INFO']
if path_info.startswith(script_name):
environ['PATH_INFO'] = path_info[len(script_name):]
server = environ.get('HTTP_X_FORWARDED_HOST', '')
if server:
environ['HTTP_HOST'] = server
scheme = environ.get('HTTP_X_SCHEME', '')
if scheme:
environ['wsgi.url_scheme'] = scheme
return self.app(environ, start_response)