index.php

   1 <?php
   2 // Developer mode active? Comment out if no dev!
   3 define('DEVELOPER', true);
   4
   5 //xdebug_start_trace();
   6 /**
   7  * The main class with the entry point to the whole application. This class
   8  * "emulates" Java(tm)'s entry point call. Additionally it covers local
   9  * variables from outside access to prevent possible attacks on uninitialized
  10  * local variables.
  11  *
  12  * But good little boys and girls would always initialize their variables... ;-)
  13  *
  14  * @author              Roland Haeder <webmaster@mxchange.org>
  15  * @version             0.0.0
  16  * @copyright   Copyright(c) 2007, 2008 Roland Haeder, this is free software
  17  * @license             GNU GPL 3.0 or any newer version
  18  * @link                http://www.ship-simu.org
  19  *
  20  * This program is free software: you can redistribute it and/or modify
  21  * it under the terms of the GNU General Public License as published by
  22  * the Free Software Foundation, either version 3 of the License, or
  23  * (at your option) any later version.
  24  *
  25  * This program is distributed in the hope that it will be useful,
  26  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  * GNU General Public License for more details.
  29  *
  30  * You should have received a copy of the GNU General Public License
  31  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  32  */
  33 class ApplicationEntryPoint {
  34         /**
  35          * The instances we want to remove after all is done
  36          *
  37          * @return      void
  38          */
  39         private static $instances = array (
  40                 'cfg',    // The configuration system
  41                 'loader', // The class loader system
  42                 'debug',  // Debug output
  43                 'db',     // Database layer
  44                 'io',     // Base I/O system (local file [or network])
  45                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  46                 'lang',   // Language sub-system
  47                 'app',    // The ApplicationHelper instance
  48         );
  49
  50         /**
  51          * The application's emergency exit
  52          *
  53          * @param               $message        The optional message we shall output on exit
  54          * @return      void
  55          */
  56         public static function app_die ($message = "") {
  57                 // Is this method already called?
  58                 if (defined('EMERGENCY_EXIT_CALLED')) {
  59                         // Then output the text directly
  60                         die($message);
  61                 }
  62
  63                 // This method shall not be called twice
  64                 define('EMERGENCY_EXIT_CALLED', true);
  65
  66                 // Is a message set?
  67                 if (empty($message)) {
  68                         // No message provided
  69                         $message = "No message provided!";
  70                 }
  71
  72                 // Get some instances
  73                 $tpl = FrameworkConfiguration::getInstance()->readConfig('tpl_engine');
  74                 $lang = LanguageSystem::getInstance();
  75                 $io = FileIoHandler::getInstance();
  76
  77                 // Is the template engine loaded?
  78                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  79                         // Use the template engine for putting out (nicer look) the message
  80                         try {
  81                                 // Get the template instance from our object factory
  82                                 $tplEngine = ObjectFactory::createObjectByConfiguredName('tpl_engine', array(FrameworkConfiguration::getInstance()->readConfig('tpl_base_path'), $lang, $io));
  83                         } catch (BasePathIsEmptyException $e) {
  84                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  85                                         $e->getMessage()
  86                                 ));
  87                         } catch (InvalidBasePathStringException $e) {
  88                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  89                                         $e->getMessage()
  90                                 ));
  91                         } catch (BasePathIsNoDirectoryException $e) {
  92                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  93                                         $e->getMessage()
  94                                 ));
  95                         } catch (BasePathReadProtectedException $e) {
  96                                 die(sprintf("[Main:] Could not initialize template engine for this reason: <strong>%s</strong>",
  97                                         $e->getMessage()
  98                                 ));
  99                         }
 100
 101                         // Backtrace holen und aufbereiten
 102                         $backtraceArray = debug_backtrace();
 103                         $backtrace = "";
 104                         foreach ($backtraceArray as $key=>$trace) {
 105                                 if (!isset($trace['file'])) $trace['file'] = __FILE__;
 106                                 if (!isset($trace['line'])) $trace['line'] = 5;
 107                                 if (!isset($trace['args'])) $trace['args'] = array();
 108                                 $backtrace .= "<span class=\"backtrace_file\">".basename($trace['file'])."</span>:".$trace['line'].", <span class=\"backtrace_function\">".$trace['function']."(".count($trace['args']).")</span><br />";
 109                         }
 110
 111                         // Assign variables
 112                         $tplEngine->assignVariable('message', $message);
 113                         $tplEngine->assignVariable('backtrace', $backtrace);
 114                         $tplEngine->assignVariable('total_objects', ObjectFactory::getTotal());
 115
 116                         // Load the template
 117                         $tplEngine->loadCodeTemplate('emergency_exit');
 118
 119                         // Compile the template
 120                         $tplEngine->compileTemplate();
 121
 122                         // Compile all variables
 123                         $tplEngine->compileVariables();
 124
 125                         // Output all
 126                         $tplEngine->output();
 127
 128                         // Good bye...
 129                         exit();
 130                 } else {
 131                         // Output message and die
 132                         die(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 133                                 $message
 134                         ));
 135                 }
 136         }
 137
 138         /**
 139          * The application's main entry point. This class isolates some local
 140          * variables which shall not become visible to outside because of security
 141          * concerns. We are doing this here to "emulate" the well-known entry
 142          * point in Java(tm).
 143          *
 144          * @return      void
 145          */
 146         public static function main () {
 147                 // Some non-global common arrays we need...
 148                 global $_SERVER;
 149
 150                 // Load config file
 151                 require(dirname(__FILE__) . '/inc/config.php');
 152
 153                 // Load all include files
 154                 require(PATH . 'inc/includes.php');
 155
 156                 // Load all framework classes
 157                 require(PATH . 'inc/classes.php');
 158
 159                 // Include the application selector
 160                 require(PATH . 'inc/selector.php');
 161
 162         } // END - main()
 163
 164 } // END - class
 165
 166 // Do not remove the following line:
 167 ApplicationEntryPoint::main();
 168
 169 // [EOF]
 170 ?>