#!/usr/bin/env python # -*- coding: utf-8 -*- # This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web) # Copyright (C) 2018 cervinko, janeczku, OzzieIsaacs # # 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 . class ReverseProxied(object): """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. Code courtesy of: http://flask.pocoo.org/snippets/35/ In nginx: location /myprefix { proxy_pass http://127.0.0.1:8083; 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; } """ def __init__(self, application): self.app = application 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.get('PATH_INFO', '') if path_info and path_info.startswith(script_name): environ['PATH_INFO'] = path_info[len(script_name):] scheme = environ.get('HTTP_X_SCHEME', '') if scheme: environ['wsgi.url_scheme'] = scheme servr = environ.get('HTTP_X_FORWARDED_HOST', '') if servr: environ['HTTP_HOST'] = servr return self.app(environ, start_response)