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@mxchange.org>
  11  * @version             0.3.0
  12  * @copyright   Copyright(c) 2007, 2008 Roland Haeder, this is free software
  13  * @license             GNU GPL 3.0 or any newer version
  14  * @link                http://www.mxchange.org
  15  *
  16  * This program is free software: you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation, either version 3 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  28  */
  29 class ApplicationEntryPoint {
  30         /**
  31          * The instances we want to remove after all is done
  32          *
  33          * @return      void
  34          */
  35         private static $instances = array (
  36                 'cfg',  // The configuration system
  37                 'loader',       // The class loader system
  38                 'debug',  // Debug output
  39                 'db',     // Database layer
  40                 'io',     // Base I/O system (local file [or network])
  41                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  42                 'lang',   // Language sub-system
  43                 'app',    // The ApplicationHelper instance
  44         );
  45
  46         /**
  47          * The application's emergency exit
  48          *
  49          * @param               $message        The optional message we shall output on exit
  50          * @return      void
  51          */
  52         public static function app_die ($message = "") {
  53                 // Is a message set?
  54                 if (empty($message)) {
  55                         // No message provided
  56                         $message = "No message provided!";
  57                 }
  58
  59                 // Get some instances
  60                 $tpl = FrameworkConfiguration::getInstance()->readConfig("tpl_engine");
  61                 $lang = LanguageSystem::getInstance();
  62                 $io = FileIOHandler::getInstance();
  63
  64                 // Is the template engine loaded?
  65                 if ((class_exists($tpl)) && (is_object($lang)) && (is_object($io))) {
  66                         // Use the template engine for putting out (nicer look) the message
  67                         try {
  68                                 $eval = sprintf("\$tplEngine = %s::create%s(\"%s%s\", \$lang, \$io);",
  69                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  70                                         FrameworkConfiguration::getInstance()->readConfig("tpl_engine"),
  71                                         PATH,
  72                                         FrameworkConfiguration::getInstance()->readConfig("tpl_base_path")
  73                                 );
  74                                 eval($eval);
  75                         } catch (BasePathIsEmptyException $e) {
  76                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  77                                         $e->getMessage()
  78                                 ));
  79                         } catch (InvalidBasePathStringException $e) {
  80                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  81                                         $e->getMessage()
  82                                 ));
  83                         } catch (BasePathIsNoDirectoryException $e) {
  84                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  85                                         $e->getMessage()
  86                                 ));
  87                         } catch (BasePathReadProtectedException $e) {
  88                                 die(sprintf("[Main:] Die Template-Engine konnte nicht initialisieren. Grund: <strong>%s</strong>",
  89                                         $e->getMessage()
  90                                 ));
  91                         }
  92
  93                         // Assign message
  94                         $tplEngine->assignVariable("message", $message);
  95
  96                         // Load the template
  97                         $tplEngine->loadCodeTemplate("emergency_exit");
  98
  99                         // Compile the template
 100                         $tplEngine->compileTemplate();
 101
 102                         // Compile all variables
 103                         $tplEngine->compileVariables();
 104
 105                         // Output all
 106                         $tplEngine->output();
 107
 108                         // Good bye...
 109                         exit();
 110                 } else {
 111                         // Output message and die
 112                         die(sprintf("[Main:] Emergency exit reached: <strong>%s</strong>",
 113                                 $message
 114                         ));
 115                 }
 116         }
 117
 118         /**
 119          * The application's main entry point. This class isolates some local
 120          * variables which shall not become visible to outside because of security
 121          * concerns. We are doing this here to "emulate" the well-known entry
 122          * point in Java(tm).
 123          *
 124          * @return      void
 125          */
 126         public static function main () {
 127                 // Some non-global common arrays we need...
 128                 global $_SERVER;
 129
 130                 // Load config file
 131                 require(dirname(__FILE__) . "/inc/config.php");
 132
 133                 // Load all include files
 134                 require(PATH . "inc/includes.php");
 135
 136                 // Load all framework classes
 137                 require(PATH . "inc/classes.php");
 138
 139                 // Include the application selector
 140                 require(PATH . "inc/selector.php");
 141
 142         } // END - main()
 143
 144 } // END - class
 145
 146 // Do not remove the following line:
 147 ApplicationEntryPoint::main();
 148
 149 // [EOF]
 150 ?>