index.php

   1 <?php
   2 /**
   3  * The main class with the entry point to the whole application. This class
   4  * "emulates" Java'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             0.0.0
  12  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Core Developer Team
  13  * @license             GNU GPL 3.0 or any newer version
  14  * @link                http://www.ship-simu.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 final class ApplicationEntryPoint {
  30         /**
  31          * Core path
  32          */
  33         private static $corePath = '';
  34
  35         /**
  36          * The instances we want to remove after all is done
  37          *
  38          * @return      void
  39          */
  40         private static $instances = array (
  41                 'cfg',    // The configuration system
  42                 'loader', // The class loader system
  43                 'debug',  // Debug output
  44                 'db',     // Database layer
  45                 'io',     // Base I/O system (local file [or network])
  46                 'engine', // Template engine ( for ApplicationEntryPoint::app_die() )
  47                 'lang',   // Language sub-system
  48                 'app',    // The ApplicationHelper instance
  49         );
  50
  51         /**
  52          * The application's emergency exit
  53          *
  54          * @param       $message                The optional message we shall output on exit
  55          * @param       $code                   Error code from exception
  56          * @param       $extraData              Extra information from exceptions
  57          * @param       $silentMode             Wether not silent mode is turned on
  58          * @return      void
  59          * @todo        This method is old code and needs heavy rewrite
  60          */
  61         public static function app_die ($message = '', $code = false, $extraData = '', $silentMode = false) {
  62                 // Is this method already called?
  63                 if (isset($GLOBALS['app_die_called'])) {
  64                         // Then output the text directly
  65                         die($message);
  66                 } // END - if
  67
  68                 // This method shall not be called twice
  69                 $GLOBALS['app_die_called'] = true;
  70
  71                 // Is a message set?
  72                 if (empty($message)) {
  73                         // No message provided
  74                         $message = 'No message provided!';
  75                 } // END - if
  76
  77                 // Get config instance
  78                 $configInstance = FrameworkConfiguration::getInstance();
  79
  80                 // Do we have debug installation?
  81                 if (($configInstance->getConfigEntry('product_install_mode') == 'productive') || ($silentMode === true)) {
  82                         // Abort here
  83                         die();
  84                 } // END - if
  85
  86                 // Get some instances
  87                 $tpl = FrameworkConfiguration::getInstance()->getConfigEntry('web_template_class');
  88                 $languageInstance = LanguageSystem::getInstance();
  89
  90                 // Initialize template instance here to avoid warnings in IDE
  91                 $templateInstance = null;
  92
  93                 // Get response instance
  94                 $responseInstance = ApplicationHelper::getInstance()->getResponseInstance();
  95
  96                 // Is the template engine loaded?
  97                 if ((class_exists($tpl)) && (is_object($languageInstance))) {
  98                         // Use the template engine for putting out (nicer look) the message
  99                         try {
 100                                 // Get the template instance from our object factory
 101                                 $templateInstance = ObjectFactory::createObjectByName($tpl, array(ApplicationHelper::getInstance()));
 102                         } catch (FrameworkException $e) {
 103                                 die(sprintf("[Main:] Could not initialize template engine for reason: <span class=\"exception_reason\">%s</span>",
 104                                         $e->getMessage()
 105                                 ));
 106                         }
 107
 108                         // Get and prepare backtrace for output
 109                         $backtraceArray = debug_backtrace();
 110                         $backtrace = '';
 111                         foreach ($backtraceArray as $key => $trace) {
 112                                 if (!isset($trace['file'])) $trace['file'] = __FILE__;
 113                                 if (!isset($trace['line'])) $trace['line'] = __LINE__;
 114                                 if (!isset($trace['args'])) $trace['args'] = array();
 115                                 $backtrace .= sprintf("<span class=\"backtrace_file\">%s</span>:%d, <span class=\"backtrace_function\">%s(%d)</span><br />\n",
 116                                         basename($trace['file']),
 117                                         $trace['line'],
 118                                         $trace['function'],
 119                                         count($trace['args'])
 120                                 );
 121                         } // END - foreach
 122
 123                         // Init application instance
 124                         $appInstance = null;
 125
 126                         // Is the class there?
 127                         if (class_exists('ApplicationHelper')) {
 128                                 // Get application instance
 129                                 $appInstance = ApplicationHelper::getInstance();
 130
 131                                 // Assign application data
 132                                 $templateInstance->assignApplicationData($appInstance);
 133                         } // END - if
 134
 135                         // We only try this
 136                         try {
 137                                 // Assign variables
 138                                 $templateInstance->assignVariable('message', $message);
 139                                 $templateInstance->assignVariable('code', $code);
 140                                 $templateInstance->assignVariable('extra', $extraData);
 141                                 $templateInstance->assignVariable('backtrace', $backtrace);
 142                                 $templateInstance->assignVariable('total_includes', ClassLoader::getInstance()->getTotal());
 143                                 $templateInstance->assignVariable('total_objects', ObjectFactory::getTotal());
 144                                 $templateInstance->assignVariable('title', $languageInstance->getMessage('emergency_exit_title'));
 145
 146                                 // Load the template
 147                                 $templateInstance->loadCodeTemplate('emergency_exit');
 148
 149                                 // Compile the template
 150                                 $templateInstance->compileTemplate();
 151
 152                                 // Compile all variables
 153                                 $templateInstance->compileVariables();
 154
 155                                 // Transfer data to response
 156                                 $templateInstance->transferToResponse($responseInstance);
 157
 158                                 // Flush the response
 159                                 $responseInstance->flushBuffer();
 160                         } catch (FileIoException $e) {
 161                                 // Even the template 'emergency_exit' wasn't found so output both message
 162                                 die($message . ', exception: ' . $e->getMessage());
 163                         }
 164
 165                         // Good bye...
 166                         exit();
 167                 } else {
 168                         // Output message and die
 169                         die(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 170                                 $message
 171                         ));
 172                 }
 173         }
 174
 175         /**
 176          * Determines the correct absolute path for all includes only once per run.
 177          * Other calls of this method are being "cached".
 178          *
 179          * @return      $basePath       Base path (core) for all includes
 180          */
 181         protected static function detectCorePath () {
 182                 // Is it not set?
 183                 if (empty(self::$corePath)) {
 184                         // Auto-detect our core path
 185                         self::$corePath = str_replace("\\", '/', dirname(__FILE__));
 186                 } // END - if
 187
 188                 // Return it
 189                 return self::$corePath;
 190         }
 191
 192         /**
 193          * The application's main entry point. This class isolates some local
 194          * variables which shall not become visible to outside because of security
 195          * concerns. We are doing this here to "emulate" the well-known entry
 196          * point in Java.
 197          *
 198          * @return      void
 199          */
 200         public static function main () {
 201                 // Load config file
 202                 require(self::detectCorePath() . '/inc/config.php');
 203
 204                 // Load all include files
 205                 require($cfg->getConfigEntry('base_path') . 'inc/includes.php');
 206
 207                 // Load all framework classes
 208                 require($cfg->getConfigEntry('base_path') . 'inc/classes.php');
 209
 210                 // Include the application selector
 211                 require($cfg->getConfigEntry('base_path') . 'inc/selector.php');
 212         } // END - main()
 213 } // END - class
 214
 215 // Developer mode active? Comment out if no dev!
 216 define('DEVELOPER', true);
 217
 218 // Log all exceptions (only debug! This option can create large error logs)
 219 //define('LOG_EXCEPTIONS', true);
 220
 221 //xdebug_start_trace();
 222
 223 // Do not remove the following line:
 224 ApplicationEntryPoint::main();
 225
 226 // [EOF]
 227 ?>