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(tm)'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 class ApplicationEntryPoint {
  33         /**
  34          * The instances we want to remove after all is done
  35          *
  36          * @return      void
  37          */
  38         private static $instances = array (
  39                 'cfg',    // The configuration system
  40                 'loader', // The class loader system
  41                 'debug',  // Debug output
  42                 'db',     // Database layer
  43                 'io',     // Base I/O system (local file [or network])
  44                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  45                 'lang',   // Language sub-system
  46                 'app',    // The ApplicationHelper instance
  47         );
  48
  49         /**
  50          * The application's emergency exit
  51          *
  52          * @param               $message        The optional message we shall output on exit
  53          * @return      void
  54          */
  55         public static function app_die ($message = "") {
  56                 // Is this method already called?
  57                 if (defined('EMERGENCY_EXIT_CALLED')) {
  58                         // Then output the text directly
  59                         die($message);
  60                 }
  61
  62                 // This method shall not be called twice
  63                 define('EMERGENCY_EXIT_CALLED', true);
  64
  65                 // Is a message set?
  66                 if (empty($message)) {
  67                         // No message provided
  68                         $message = "No message provided!";
  69                 }
  70
  71                 // Get some instances
  72                 $tpl = FrameworkConfiguration::getInstance()->readConfig('tpl_engine');
  73                 $lang = LanguageSystem::getInstance();
  74                 $io = FileIoHandler::getInstance();
  75
  76                 // Is the template engine loaded?
  77                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  78                         // Use the template engine for putting out (nicer look) the message
  79                         try {
  80                                 // Get the template instance from our object factory
  81                                 $tplEngine = ObjectFactory::createObjectByConfiguredName('tpl_engine', array(FrameworkConfiguration::getInstance()->readConfig('tpl_base_path'), $lang, $io));
  82                         } catch (BasePathIsEmptyException $e) {
  83                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  84                                         $e->getMessage()
  85                                 ));
  86                         } catch (InvalidBasePathStringException $e) {
  87                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  88                                         $e->getMessage()
  89                                 ));
  90                         } catch (BasePathIsNoDirectoryException $e) {
  91                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  92                                         $e->getMessage()
  93                                 ));
  94                         } catch (BasePathReadProtectedException $e) {
  95                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  96                                         $e->getMessage()
  97                                 ));
  98                         }
  99
 100                         // Backtrace holen und aufbereiten
 101                         $backtraceArray = debug_backtrace();
 102                         $backtrace = "";
 103                         foreach ($backtraceArray as $key=>$trace) {
 104                                 if (!isset($trace['file'])) $trace['file'] = __FILE__;
 105                                 if (!isset($trace['line'])) $trace['line'] = 5;
 106                                 if (!isset($trace['args'])) $trace['args'] = array();
 107                                 $backtrace .= "<span class=\"backtrace_file\">".basename($trace['file'])."</span>:".$trace['line'].", <span class=\"backtrace_function\">".$trace['function']."(".count($trace['args']).")</span><br />";
 108                         }
 109
 110                         // Assign variables
 111                         $tplEngine->assignVariable('message', $message);
 112                         $tplEngine->assignVariable('backtrace', $backtrace);
 113                         $tplEngine->assignVariable('total_objects', ObjectFactory::getTotal());
 114
 115                         // Load the template
 116                         $tplEngine->loadCodeTemplate('emergency_exit');
 117
 118                         // Compile the template
 119                         $tplEngine->compileTemplate();
 120
 121                         // Compile all variables
 122                         $tplEngine->compileVariables();
 123
 124                         // Output all
 125                         $tplEngine->output();
 126
 127                         // Good bye...
 128                         exit();
 129                 } else {
 130                         // Output message and die
 131                         die(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 132                                 $message
 133                         ));
 134                 }
 135         }
 136
 137         /**
 138          * The application's main entry point. This class isolates some local
 139          * variables which shall not become visible to outside because of security
 140          * concerns. We are doing this here to "emulate" the well-known entry
 141          * point in Java(tm).
 142          *
 143          * @return      void
 144          */
 145         public static function main () {
 146                 // Some non-global common arrays we need...
 147                 global $_SERVER;
 148
 149                 // Load config file
 150                 require(dirname(__FILE__) . '/inc/config.php');
 151
 152                 // Load all include files
 153                 require(PATH . 'inc/includes.php');
 154
 155                 // Load all framework classes
 156                 require(PATH . 'inc/classes.php');
 157
 158                 // Include the application selector
 159                 require(PATH . 'inc/selector.php');
 160
 161         } // END - main()
 162
 163 } // END - class
 164
 165 // Do not remove the following line:
 166 ApplicationEntryPoint::main();
 167
 168 // [EOF]
 169 ?>