index.php

   1 <?php
   2 // Developer mode active? Comment out if no dev!
   3 define('DEVELOPER', true);
   4 //xdebug_start_trace();
   5 /**
   6  * The main class with the entry point to the whole application. This class
   7  * "emulates" Java's entry point call. Additionally it covers local
   8  * variables from outside access to prevent possible attacks on uninitialized
   9  * local variables.
  10  *
  11  * But good little boys and girls would always initialize their variables... ;-)
  12  *
  13  * @author              Roland Haeder <webmaster@ship-simu.org>
  14  * @version             0.0.0
  15  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, this is free software
  16  * @license             GNU GPL 3.0 or any newer version
  17  * @link                http://www.ship-simu.org
  18  *
  19  * This program is free software: you can redistribute it and/or modify
  20  * it under the terms of the GNU General Public License as published by
  21  * the Free Software Foundation, either version 3 of the License, or
  22  * (at your option) any later version.
  23  *
  24  * This program is distributed in the hope that it will be useful,
  25  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27  * GNU General Public License for more details.
  28  *
  29  * You should have received a copy of the GNU General Public License
  30  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  31  */
  32 final class ApplicationEntryPoint {
  33         /**
  34          * Core path
  35          */
  36         private static $corePath = '';
  37
  38         /**
  39          * The instances we want to remove after all is done
  40          *
  41          * @return      void
  42          */
  43         private static $instances = array (
  44                 'cfg',    // The configuration system
  45                 'loader', // The class loader system
  46                 'debug',  // Debug output
  47                 'db',     // Database layer
  48                 'io',     // Base I/O system (local file [or network])
  49                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  50                 'lang',   // Language sub-system
  51                 'app',    // The ApplicationHelper instance
  52         );
  53
  54         /**
  55          * The application's emergency exit
  56          *
  57          * @param       $message                The optional message we shall output on exit
  58          * @param       $code                   Error code from exception
  59          * @param       $extraData              Extra information from exceptions
  60          * @param       $silentMode             Wether not silent mode is turned on
  61          * @return      void
  62          */
  63         public static function app_die ($message = '', $code = false, $extraData = '', $silentMode = false) {
  64                 // Is this method already called?
  65                 if (defined('EMERGENCY_EXIT_CALLED')) {
  66                         // Then output the text directly
  67                         die($message);
  68                 } // END - if
  69
  70                 // This method shall not be called twice
  71                 define('EMERGENCY_EXIT_CALLED', true);
  72
  73                 // Is a message set?
  74                 if (empty($message)) {
  75                         // No message provided
  76                         $message = 'No message provided!';
  77                 } // END - if
  78
  79                 // Get config instance
  80                 $configInstance = FrameworkConfiguration::getInstance();
  81
  82                 // Do we have debug installation?
  83                 if (($configInstance->readConfig('product_install_mode') == 'productive') || ($silentMode === true)) {
  84                         // Abort here
  85                         die();
  86                 } // END - if
  87
  88                 // Get some instances
  89                 $tpl = FrameworkConfiguration::getInstance()->readConfig('template_class');
  90                 $lang = LanguageSystem::getInstance();
  91
  92                 // Get response instance
  93                 $responseInstance = ApplicationHelper::getInstance()->getResponseInstance();
  94
  95                 // Is the template engine loaded?
  96                 if ((class_exists($tpl)) && (is_object($lang))) {
  97                         // Use the template engine for putting out (nicer look) the message
  98                         try {
  99                                 // Get the template instance from our object factory
 100                                 $templateInstance = ObjectFactory::createObjectByName($tpl, array(ApplicationHelper::getInstance()));
 101                         } catch (FrameworkException $e) {
 102                                 die(sprintf("[Main:] Could not initialize template engine for reason: <span class=\"exception_reason\">%s</span>",
 103                                         $e->getMessage()
 104                                 ));
 105                         }
 106
 107                         // Get and prepare backtrace for output
 108                         $backtraceArray = debug_backtrace();
 109                         $backtrace = '';
 110                         foreach ($backtraceArray as $key => $trace) {
 111                                 if (!isset($trace['file'])) $trace['file'] = __FILE__;
 112                                 if (!isset($trace['line'])) $trace['line'] = __LINE__;
 113                                 if (!isset($trace['args'])) $trace['args'] = array();
 114                                 $backtrace .= "<span class=\"backtrace_file\">".basename($trace['file'])."</span>:".$trace['line'].", <span class=\"backtrace_function\">".$trace['function']."(".count($trace['args']).")</span><br />";
 115                         } // END - foreach
 116
 117                         // Init application instance
 118                         $appInstance = null;
 119
 120                         // Is the class there?
 121                         if (class_exists('ApplicationHelper')) {
 122                                 // Get application instance
 123                                 $appInstance = ApplicationHelper::getInstance();
 124
 125                                 // Assign application data
 126                                 $templateInstance->assignApplicationData($appInstance);
 127                         } // END - if
 128
 129                         // Assign variables
 130                         $templateInstance->assignVariable('message', $message);
 131                         $templateInstance->assignVariable('code', $code);
 132                         $templateInstance->assignVariable('extra', $extraData);
 133                         $templateInstance->assignVariable('backtrace', $backtrace);
 134                         $templateInstance->assignVariable('total_includes', ClassLoader::getInstance()->getTotal());
 135                         $templateInstance->assignVariable('total_objects', ObjectFactory::getTotal());
 136                         $templateInstance->assignVariable('title', $lang->getMessage('emergency_exit_title'));
 137
 138                         // Load the template
 139                         $templateInstance->loadCodeTemplate('emergency_exit');
 140
 141                         // Compile the template
 142                         $templateInstance->compileTemplate();
 143
 144                         // Compile all variables
 145                         $templateInstance->compileVariables();
 146
 147                         // Transfer data to response
 148                         $templateInstance->transferToResponse($responseInstance);
 149
 150                         // Flush the response
 151                         $responseInstance->flushBuffer();
 152
 153                         // Good bye...
 154                         exit();
 155                 } else {
 156                         // Output message and die
 157                         die(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 158                                 $message
 159                         ));
 160                 }
 161         }
 162
 163         /**
 164          * Determines the correct absolute path for all includes
 165          *
 166          * @return      $basePath       Base path (core) for all includes
 167          */
 168         protected static function detectCorePath () {
 169                 // Is it not set?
 170                 if (empty(self::$corePath)) {
 171                         // Auto-detect our core path
 172                         self::$corePath = str_replace("\\", '/', dirname(__FILE__));
 173                 } // END - if
 174
 175                 // Return it
 176                 return self::$corePath;
 177         }
 178
 179         /**
 180          * The application's main entry point. This class isolates some local
 181          * variables which shall not become visible to outside because of security
 182          * concerns. We are doing this here to "emulate" the well-known entry
 183          * point in Java.
 184          *
 185          * @return      void
 186          */
 187         public static function main () {
 188                 // Load config file
 189                 require(self::detectCorePath() . '/inc/config.php');
 190
 191                 // Load all include files
 192                 require($cfg->readConfig('base_path') . 'inc/includes.php');
 193
 194                 // Load all framework classes
 195                 require($cfg->readConfig('base_path') . 'inc/classes.php');
 196
 197                 // Include the application selector
 198                 require($cfg->readConfig('base_path') . 'inc/selector.php');
 199         } // END - main()
 200
 201 } // END - class
 202
 203 // Do not remove the following line:
 204 ApplicationEntryPoint::main();
 205
 206 // [EOF]
 207 ?>