index.php

   1 <?php
   2 //xdebug_start_trace();
   3 /**
   4  * The main class with the entry point to the whole application. This class
   5  * "emulates" Java(tm)'s entry point call. Additionally it covers local
   6  * variables from outside access to prevent possible attacks on uninitialized
   7  * local variables.
   8  *
   9  * But good little boys and girls would always initialize their variables... ;-)
  10  *
  11  * @author              Roland Haeder <webmaster@mxchange.org>
  12  * @version             0.0.0
  13  * @copyright   Copyright(c) 2007, 2008 Roland Haeder, this is free software
  14  * @license             GNU GPL 3.0 or any newer version
  15  * @link                http://www.ship-simu.org
  16  *
  17  * This program is free software: you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation, either version 3 of the License, or
  20  * (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  29  */
  30 class ApplicationEntryPoint {
  31         /**
  32          * The instances we want to remove after all is done
  33          *
  34          * @return      void
  35          */
  36         private static $instances = array (
  37                 'cfg',  // The configuration system
  38                 'loader',       // The class loader system
  39                 'debug',  // Debug output
  40                 'db',     // Database layer
  41                 'io',     // Base I/O system (local file [or network])
  42                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  43                 'lang',   // Language sub-system
  44                 'app',    // The ApplicationHelper instance
  45         );
  46
  47         /**
  48          * The application's emergency exit
  49          *
  50          * @param               $message        The optional message we shall output on exit
  51          * @return      void
  52          */
  53         public static function app_die ($message = "") {
  54                 // Is this method already called?
  55                 if (defined('EMERGENCY_EXIT_CALLED')) {
  56                         // Then output the text directly
  57                         die($message);
  58                 }
  59
  60                 // This method shall not be called twice
  61                 define('EMERGENCY_EXIT_CALLED', true);
  62
  63                 // Is a message set?
  64                 if (empty($message)) {
  65                         // No message provided
  66                         $message = "No message provided!";
  67                 }
  68
  69                 // Get some instances
  70                 $tpl = FrameworkConfiguration::getInstance()->readConfig('tpl_engine');
  71                 $lang = LanguageSystem::getInstance();
  72                 $io = FileIoHandler::getInstance();
  73
  74                 // Is the template engine loaded?
  75                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  76                         // Use the template engine for putting out (nicer look) the message
  77                         try {
  78                                 // Get the template instance from our object factory
  79                                 $tplEngine = ObjectFactory::createObjectByConfiguredName('tpl_engine', array(FrameworkConfiguration::getInstance()->readConfig('tpl_base_path'), $lang, $io));
  80                         } catch (BasePathIsEmptyException $e) {
  81                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  82                                         $e->getMessage()
  83                                 ));
  84                         } catch (InvalidBasePathStringException $e) {
  85                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  86                                         $e->getMessage()
  87                                 ));
  88                         } catch (BasePathIsNoDirectoryException $e) {
  89                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  90                                         $e->getMessage()
  91                                 ));
  92                         } catch (BasePathReadProtectedException $e) {
  93                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  94                                         $e->getMessage()
  95                                 ));
  96                         }
  97
  98                         // Backtrace holen und aufbereiten
  99                         $backtraceArray = debug_backtrace();
 100                         $backtrace = "";
 101                         foreach ($backtraceArray as $key=>$trace) {
 102                                 if (!isset($trace['file'])) $trace['file'] = __FILE__;
 103                                 if (!isset($trace['line'])) $trace['line'] = 5;
 104                                 if (!isset($trace['args'])) $trace['args'] = array();
 105                                 $backtrace .= "<span class=\"backtrace_file\">".basename($trace['file'])."</span>:".$trace['line'].", <span class=\"backtrace_function\">".$trace['function']."(".count($trace['args']).")</span><br />";
 106                         }
 107
 108                         // Assign variables
 109                         $tplEngine->assignVariable('message', $message);
 110                         $tplEngine->assignVariable('backtrace', $backtrace);
 111                         $tplEngine->assignVariable('total_objects', ObjectFactory::getTotal());
 112
 113                         // Load the template
 114                         $tplEngine->loadCodeTemplate('emergency_exit');
 115
 116                         // Compile the template
 117                         $tplEngine->compileTemplate();
 118
 119                         // Compile all variables
 120                         $tplEngine->compileVariables();
 121
 122                         // Output all
 123                         $tplEngine->output();
 124
 125                         // Good bye...
 126                         exit();
 127                 } else {
 128                         // Output message and die
 129                         die(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 130                                 $message
 131                         ));
 132                 }
 133         }
 134
 135         /**
 136          * The application's main entry point. This class isolates some local
 137          * variables which shall not become visible to outside because of security
 138          * concerns. We are doing this here to "emulate" the well-known entry
 139          * point in Java(tm).
 140          *
 141          * @return      void
 142          */
 143         public static function main () {
 144                 // Some non-global common arrays we need...
 145                 global $_SERVER;
 146
 147                 // Load config file
 148                 require(dirname(__FILE__) . '/inc/config.php');
 149
 150                 // Load all include files
 151                 require(PATH . 'inc/includes.php');
 152
 153                 // Load all framework classes
 154                 require(PATH . 'inc/classes.php');
 155
 156                 // Include the application selector
 157                 require(PATH . 'inc/selector.php');
 158
 159         } // END - main()
 160
 161 } // END - class
 162
 163 // Do not remove the following line:
 164 ApplicationEntryPoint::main();
 165
 166 // [EOF]
 167 ?>