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 class ApplicationEntryPoint {
  11         /**
  12          * The instances we want to remove after all is done
  13          *
  14          * @return      void
  15          */
  16         private static $instances = array (
  17                 'cfg',  // The configuration system
  18                 'loader',       // The class loader system
  19                 'debug',  // Debug output
  20                 'db',     // Database layer
  21                 'io',     // Base I/O system (local file [or network])
  22                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  23                 'lang',   // Language sub-system
  24                 'app',    // The ApplicationHelper instance
  25         );
  26
  27         /**
  28          * The application's emergency exit
  29          *
  30          * @param               $message        The optional message we shall output on exit
  31          * @return      void
  32          */
  33         public static function app_die ($message = "") {
  34                 // Is a message set?
  35                 if (empty($message)) {
  36                         // No message provided
  37                         $message = "No message provided!";
  38                 }
  39
  40                 // Get some instances
  41                 $tpl = FrameworkConfiguration::getInstance()->readConfig("tpl_engine");
  42                 $lang = LanguageSystem::getInstance();
  43                 $io = FileIOHandler::getInstance();
  44
  45                 // Is the template engine loaded?
  46                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  47                         // Use the template engine for putting out (nicer look) the message
  48                         try {
  49                                 $eval = sprintf("$tplEngine = %s::create%s(\"%s%s\", LanguageSystem::getInstance(), FileIOHandler::getInstance());",
  50                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  51                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  52                                         PATH,
  53                                         FrameworkConfiguration::getInstance()->readConfig("tpl_base_path")
  54                                 );
  55                                 eval($eval);
  56                         } catch (BasePathIsEmptyException $e) {
  57                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  58                                         $e->getMessage()
  59                                 ));
  60                         } catch (InvalidBasePathStringException $e) {
  61                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  62                                         $e->getMessage()
  63                                 ));
  64                         } catch (BasePathIsNoDirectoryException $e) {
  65                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  66                                         $e->getMessage()
  67                                 ));
  68                         } catch (BasePathReadProtectedException $e) {
  69                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  70                                         $e->getMessage()
  71                                 ));
  72                         }
  73
  74                         // Assign message
  75                         $tplEngine->assignVariable("message", $message);
  76
  77                         // Load the template
  78                         $tplEngine->loadCodeTemplate("emergency_exit");
  79
  80                         // Compile the template
  81                         $tplEngine->compileTemplate();
  82
  83                         // Compile all variables
  84                         $tplEngine->compileVariables();
  85
  86                         // Output all
  87                         $tplEngine->output();
  88
  89                         // Good bye...
  90                         exit();
  91                 } else {
  92                         // Output message and die
  93                         die(sprintf("[Main:] Emergency exit reached: <strong>%s</strong>",
  94                                 $message
  95                         ));
  96                 }
  97         }
  98
  99         /**
 100          * The application's main entry point. This class isolates some local
 101          * variables which shall not become visible to outside because of security
 102          * concerns. We are doing this here to "emulate" the well-known entry
 103          * point in Java(tm).
 104          *
 105          * @return      void
 106          */
 107         public static function main () {
 108                 // Some non-global common arrays we need...
 109                 global $_SERVER;
 110
 111                 // Load config file
 112                 require(dirname(__FILE__) . "/inc/config.php");
 113
 114                 // Load all include files
 115                 require(PATH . "inc/includes.php");
 116
 117                 // Load all framework classes
 118                 require(PATH . "inc/classes.php");
 119
 120                 // Include the application selector
 121                 require(PATH . "inc/selector.php");
 122
 123         } // END - main()
 124
 125 } // END - class
 126
 127 // Do not remove the following line:
 128 ApplicationEntryPoint::main();
 129
 130 // [EOF]
 131 ?>