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Location: kallithea/rhodecode/lib/middleware/https_fixup.py

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Marcin Kuzminski

Don't cache dulwich Repos, in pararell multithreaded evniroment dulwich pack file openers
can break badly. We need to create Repo() objects always for each call, even when it's
taken from cache.
Fixed issue with dulwich filedescriptor leak ref #573

# -*- coding: utf-8 -*-
"""
    rhodecode.lib.middleware.https_fixup
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    middleware to handle https correctly

    :created_on: May 23, 2010
    :author: marcink
    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
    :license: GPLv3, see COPYING for more details.
"""
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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, see <http://www.gnu.org/licenses/>.

from rhodecode.lib.utils2 import str2bool


class HttpsFixup(object):

    def __init__(self, app, config):
        self.application = app
        self.config = config

    def __call__(self, environ, start_response):
        self.__fixup(environ)
        return self.application(environ, start_response)

    def __fixup(self, environ):
        """
        Function to fixup the environ as needed. In order to use this
        middleware you should set this header inside your
        proxy ie. nginx, apache etc.
        """
        # DETECT PROTOCOL !
        if 'HTTP_X_URL_SCHEME' in environ:
            proto = environ.get('HTTP_X_URL_SCHEME')
        elif 'HTTP_X_FORWARDED_SCHEME' in environ:
            proto = environ.get('HTTP_X_FORWARDED_SCHEME')
        elif 'HTTP_X_FORWARDED_PROTO' in environ:
            proto = environ.get('HTTP_X_FORWARDED_PROTO')
        else:
            proto = 'http'
        org_proto = proto

        # if we have force, just override
        if str2bool(self.config.get('force_https')):
            proto = 'https'

        environ['wsgi.url_scheme'] = proto
        environ['wsgi._org_proto'] = org_proto