index.php

   1 <?php
   2 /**
   3  * The main class with the entry point to the whole application. This class
   4  * "emulates" Java(tm)'s entry point call. Additionally it covers local
   5  * variables from outside access to prevent possible attacks on uninitialized
   6  * local variables.
   7  *
   8  * But good little boys and girls would always initialize their variables... ;-)
   9  *
  10  * @author              Roland Haeder <webmaster@ship-simu.org>
  11  * @version             0.0
  12  * @copyright   Copyright(c) 2007, 2008 Roland Haeder, this is free software
  13  * @license             GNU GPL 3.0 or any newer version
  14  *
  15  * This program is free software: you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation, either version 3 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  27  */
  28 class ApplicationEntryPoint {
  29         /**
  30          * The instances we want to remove after all is done
  31          *
  32          * @return      void
  33          */
  34         private static $instances = array (
  35                 'cfg',  // The configuration system
  36                 'loader',       // The class loader system
  37                 'debug',  // Debug output
  38                 'db',     // Database layer
  39                 'io',     // Base I/O system (local file [or network])
  40                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  41                 'lang',   // Language sub-system
  42                 'app',    // The ApplicationHelper instance
  43         );
  44
  45         /**
  46          * The application's emergency exit
  47          *
  48          * @param               $message        The optional message we shall output on exit
  49          * @return      void
  50          */
  51         public static function app_die ($message = "") {
  52                 // Is a message set?
  53                 if (empty($message)) {
  54                         // No message provided
  55                         $message = "No message provided!";
  56                 }
  57
  58                 // Get some instances
  59                 $tpl = FrameworkConfiguration::getInstance()->readConfig("tpl_engine");
  60                 $lang = LanguageSystem::getInstance();
  61                 $io = FileIOHandler::getInstance();
  62
  63                 // Is the template engine loaded?
  64                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  65                         // Use the template engine for putting out (nicer look) the message
  66                         try {
  67                                 $eval = sprintf("\$tplEngine = %s::create%s(\"%s%s\", LanguageSystem::getInstance(), FileIOHandler::getInstance());",
  68                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  69                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  70                                         PATH,
  71                                         FrameworkConfiguration::getInstance()->readConfig("tpl_base_path")
  72                                 );
  73                                 eval($eval);
  74                         } catch (BasePathIsEmptyException $e) {
  75                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  76                                         $e->getMessage()
  77                                 ));
  78                         } catch (InvalidBasePathStringException $e) {
  79                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  80                                         $e->getMessage()
  81                                 ));
  82                         } catch (BasePathIsNoDirectoryException $e) {
  83                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  84                                         $e->getMessage()
  85                                 ));
  86                         } catch (BasePathReadProtectedException $e) {
  87                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  88                                         $e->getMessage()
  89                                 ));
  90                         }
  91
  92                         // Assign message
  93                         $tplEngine->assignVariable("message", $message);
  94
  95                         // Load the template
  96                         $tplEngine->loadCodeTemplate("emergency_exit");
  97
  98                         // Compile the template
  99                         $tplEngine->compileTemplate();
 100
 101                         // Compile all variables
 102                         $tplEngine->compileVariables();
 103
 104                         // Output all
 105                         $tplEngine->output();
 106
 107                         // Good bye...
 108                         exit();
 109                 } else {
 110                         // Output message and die
 111                         die(sprintf("[Main:] Emergency exit reached: <strong>%s</strong>",
 112                                 $message
 113                         ));
 114                 }
 115         }
 116
 117         /**
 118          * The application's main entry point. This class isolates some local
 119          * variables which shall not become visible to outside because of security
 120          * concerns. We are doing this here to "emulate" the well-known entry
 121          * point in Java(tm).
 122          *
 123          * @return      void
 124          */
 125         public static function main () {
 126                 // Some non-global common arrays we need...
 127                 global $_SERVER;
 128
 129                 // Load config file
 130                 require(dirname(__FILE__) . "/inc/config.php");
 131
 132                 // Load all include files
 133                 require(PATH . "inc/includes.php");
 134
 135                 // Load all framework classes
 136                 require(PATH . "inc/classes.php");
 137
 138                 // Include the application selector
 139                 require(PATH . "inc/selector.php");
 140
 141         } // END - main()
 142
 143 } // END - class
 144
 145 // Do not remove the following line:
 146 ApplicationEntryPoint::main();
 147
 148 // [EOF]
 149 ?>