Root/
<?php /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* # ***** BEGIN LICENSE BLOCK ***** # This file is part of Plume Framework, a simple PHP Application Framework. # Copyright (C) 2001-2009 Loic d'Anterroches and contributors. # # Plume Framework is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # Plume Framework 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 Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # ***** END LICENSE BLOCK ***** */ /** * Readonly middleware. * * It is intercepting all the POST requests with a message telling * that the website is in read only mode. * * Optionally, a message at the top of the page is added to inform * that the website is in read only mode. * * Add the middleware at the top of your middleware list and * optionally add a message to be displayed in your configuration * file. * * Example: * * <pre> * $cfg['middleware_classes'] = array( * 'Pluf_Middleware_ReadOnly', * 'Pluf_Middleware_Csrf', * 'Pluf_Middleware_Session', * 'Pluf_Middleware_Translation', * ); * $cfg['read_only_mode_message'] = 'The server is in read only mode the ' * .'time to be migrated on another host.' * .'Thank you for your patience.'; * </pre> * * You can put HTML in your message. * */ class Pluf_Middleware_ReadOnly { /** * Process the request. * * @param Pluf_HTTP_Request The request * @return bool false */ function process_request(& $request ) { if ( $request ->method == 'POST' ) { $res = new Pluf_HTTP_Response( 'Server in read only mode' . "\n\n" . 'We are upgrading the system to make it better for you, please try again later...' , 'text/plain' ); $res ->status_code = 503; return $res ; } return false; } /** * Process the response of a view. * * If configured, add the message to inform that the website is in * read only mode. * * @param Pluf_HTTP_Request The request * @param Pluf_HTTP_Response The response * @return Pluf_HTTP_Response The response */ function process_response( $request , $response ) { if (!Pluf::f( 'read_only_mode_message' , false)) { return $response ; } if (!in_array( $response ->status_code, array (200, 201, 202, 203, 204, 205, 206, 404, 501))) { return $response ; } $ok = false; $cts = array ( 'text/html' , 'application/xhtml+xml' ); foreach ( $cts as $ct ) { if (false !== strripos ( $response ->headers[ 'Content-Type' ], $ct )) { $ok = true; break ; } } if ( $ok == false) { return $response ; } $message = Pluf::f( 'read_only_mode_message' ); $response ->content = str_replace ( '<body>' , '<body><div style="width: 50%; color: #c00; border: 2px solid #c00; padding: 5px; margin: 1em auto 2em; background-color: #fffde3">' . $message . '</div>' , $response ->content); return $response ; } } |