movim/app/controllers/ControllerBase.php

<?php

/**
 * @file Controller.php
 * This file is part of MOVIM.
 *
 * @brief Implements a request handler that ensures application worklfow.
 *
 * @author Movim Project <movim@movim.eu>
 *
 * @version 1.0
 * @date 13 October 2010
 *
 * Copyright (C)2010 Movim Project
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

class ControllerBase
{
    protected $default_handler = 'index';
    protected $token;

    public function __construct($token = 'q')
    {
        $this->load_language();
        $this->token = $token;
    }

    public function handle()
    {
        $r = new Route();
        // Note that the request is always specified by 'q'.
        if($request = $this->fetch_get('q')) {
            $this->run_req($request);
        } else {
            $this->error404();
        }
    }

    /**
     * Loads up the language, either from the User or default.
     */
    function load_language() {
        $user = new user();
        if($user->isLogged()) {
            try{
                $lang = $user->getConfig('language');
                load_language($lang);
            }
            catch(MovimException $e) {
                // Load default language.
                load_language(Conf::getServerConfElement('defLang'));
            }
        }
        else if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
            load_language_auto();
        }
        else {
            load_language(Conf::getServerConfElement('defLang'));
        }
    }

    /**
     * Attempts to call back the given function.
     */
    protected function run_req($request)
    {
 
        if(is_callable(array($this, $request))) {
            call_user_func(array($this, $request));
        } else {
            die('not found query');
        }
    }

    /**
     * Returns the value of a $_GET variable. Mainly used to avoid getting
     * notices from PHP when attempting to fetch an empty variable.
     * @param name is the desired variable's name.
     * @return the value of the requested variable, or FALSE.
     */
    protected function fetch_get($name)
    {
        if(isset($_GET[$name])) {
            return htmlentities($_GET[$name]);
        } else {
            return false;
        }
    }

    /**
     * Returns the value of a $_POST variable. Mainly used to avoid getting
     * notices from PHP when attempting to fetch an empty variable.
     * @param name is the desired variable's name.
     * @return the value of the requested variable, or FALSE.
     */
    protected function fetch_post($name)
    {
        if(isset($_POST[$name])) {
            return htmlentities($_POST[$name]);
        } else {
            return false;
        }
    }
    
    /**
     * Return a basic auth page for the administration area
     */
    protected function authenticate(){
        header('WWW-Authenticate: Basic realm="Enter admin username/password"');
        header('HTTP/1.0 401 Unauthorized');
        echo 'Why are you hitting cancel?';
        exit;
    }

    /**
     * Makes an error 404 page.
     */
    protected function error404()
    {
        ?>
        <style type="text/css">
            body { 
            }
            #content {
                margin: 0 auto;
                max-width: 1024px;
                font-family: sans-serif;
                font-size: 3em; 
                line-height: 1.5em; 
                text-align: center;
                padding: 1em 0em;
            }
            
            img.logo {
                display: block;
                float: right;
            }
        </style>

        <div id="content">
            404<br />

            <img src="<?php echo BASE_URI.'/themes/movim/img/yuno.png'; ?>" /> <br />

            Y U NO FOUND    
            <br />
            <a href="http://movim.eu/">
                <img class="logo" src="<?php echo BASE_URI.'themes/movim/img/logo_black.png'; ?>" />
            </a>    
        </div>

        <?php
    }
}

?>