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 - 2012 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 application's emergency exit
  37          *
  38          * @param       $message                The optional message we shall output on exit
  39          * @param       $code                   Error code from exception
  40          * @param       $extraData              Extra information from exceptions
  41          * @param       $silentMode             Whether silent mode is turned on
  42          * @return      void
  43          * @todo        This method is old code and needs heavy rewrite and should be moved to ApplicationHelper
  44          */
  45         public static final function app_exit ($message = '', $code = false, $extraData = '', $silentMode = false) {
  46                 // Is this method already called?
  47                 if (isset($GLOBALS['app_die_called'])) {
  48                         // Then output the text directly
  49                         exit($message);
  50                 } // END - if
  51
  52                 // This method shall not be called twice
  53                 $GLOBALS['app_die_called'] = true;
  54
  55                 // Is a message set?
  56                 if (empty($message)) {
  57                         // No message provided
  58                         $message = 'No message provided!';
  59                 } // END - if
  60
  61                 // Get config instance
  62                 $configInstance = FrameworkConfiguration::getSelfInstance();
  63
  64                 // Do we have debug installation?
  65                 if (($configInstance->getConfigEntry('product_install_mode') == 'productive') || ($silentMode === true)) {
  66                         // Abort here
  67                         exit();
  68                 } // END - if
  69
  70                 // Get some instances
  71                 $tpl = FrameworkConfiguration::getSelfInstance()->getConfigEntry('web_template_class');
  72                 $languageInstance = LanguageSystem::getSelfInstance();
  73
  74                 // Initialize template instance here to avoid warnings in IDE
  75                 $templateInstance = NULL;
  76
  77                 // Get response instance
  78                 $responseInstance = ApplicationHelper::getSelfInstance()->getResponseInstance();
  79
  80                 // Is the template engine loaded?
  81                 if ((class_exists($tpl)) && (is_object($languageInstance))) {
  82                         // Use the template engine for putting out (nicer look) the message
  83                         try {
  84                                 // Get the template instance from our object factory
  85                                 $templateInstance = ObjectFactory::createObjectByName($tpl);
  86                         } catch (FrameworkException $e) {
  87                                 exit(sprintf("[Main:] Could not initialize template engine for reason: <span class=\"exception_reason\">%s</span>",
  88                                         $e->getMessage()
  89                                 ));
  90                         }
  91
  92                         // Get and prepare backtrace for output
  93                         $backtraceArray = debug_backtrace();
  94                         $backtrace = '';
  95                         foreach ($backtraceArray as $key => $trace) {
  96                                 // Set missing array elements
  97                                 if (!isset($trace['file'])) {
  98                                         $trace['file'] = __FILE__;
  99                                 } // END - if
 100                                 if (!isset($trace['line'])) {
 101                                         $trace['line'] = __LINE__;
 102                                 } // END - if
 103                                 if (!isset($trace['args'])) {
 104                                         $trace['args'] = array();
 105                                 } // END - if
 106
 107                                 // Add the traceback path to the final output
 108                                 $backtrace .= sprintf("<span class=\"backtrace_file\">%s</span>:%d, <span class=\"backtrace_function\">%s(%d)</span><br />\n",
 109                                         basename($trace['file']),
 110                                         $trace['line'],
 111                                         $trace['function'],
 112                                         count($trace['args'])
 113                                 );
 114                         } // END - foreach
 115
 116                         // Init application instance
 117                         $applicationInstance = NULL;
 118
 119                         // Is the class there?
 120                         if (class_exists('ApplicationHelper')) {
 121                                 // Get application instance
 122                                 $applicationInstance = ApplicationHelper::getSelfInstance();
 123
 124                                 // Assign application data
 125                                 $templateInstance->assignApplicationData($applicationInstance);
 126                         } // END - if
 127
 128                         // We only try this
 129                         try {
 130                                 // Assign variables
 131                                 $templateInstance->assignVariable('message', $message);
 132                                 $templateInstance->assignVariable('code', $code);
 133                                 $templateInstance->assignVariable('extra', $extraData);
 134                                 $templateInstance->assignVariable('backtrace', $backtrace);
 135                                 $templateInstance->assignVariable('total_includes', ClassLoader::getSelfInstance()->getTotal());
 136                                 $templateInstance->assignVariable('total_objects', ObjectFactory::getTotal());
 137                                 $templateInstance->assignVariable('title', $languageInstance->getMessage('emergency_exit_title'));
 138
 139                                 // Load the template
 140                                 $templateInstance->loadCodeTemplate('emergency_exit');
 141
 142                                 // Compile the template
 143                                 $templateInstance->compileTemplate();
 144
 145                                 // Compile all variables
 146                                 $templateInstance->compileVariables();
 147
 148                                 // Transfer data to response
 149                                 $templateInstance->transferToResponse($responseInstance);
 150
 151                                 // Flush the response
 152                                 $responseInstance->flushBuffer();
 153                         } catch (FileIoException $e) {
 154                                 // Even the template 'emergency_exit' wasn't found so output both message
 155                                 exit($message . ', exception: ' . $e->getMessage());
 156                         }
 157
 158                         // Good bye...
 159                         exit();
 160                 } else {
 161                         // Output message and die
 162                         exit(sprintf("[Main:] Emergency exit reached: <span class=\"emergency_span\">%s</span>",
 163                                 $message
 164                         ));
 165                 }
 166         }
 167
 168         /**
 169          * Determines the correct absolute path for all includes only once per run.
 170          * Other calls of this method are being "cached".
 171          *
 172          * @return      $corePath       Base path (core) for all includes
 173          */
 174         protected static final function detectCorePath () {
 175                 // Is it not set?
 176                 if (empty(self::$corePath)) {
 177                         // Auto-detect our core path
 178                         self::$corePath = str_replace("\\", '/', dirname(__FILE__));
 179                 } // END - if
 180
 181                 // Return it
 182                 return self::$corePath;
 183         }
 184
 185         /**
 186          * The application's main entry point. This class isolates some local
 187          * variables which shall not become visible to outside because of security
 188          * concerns. We are doing this here to "emulate" the well-known entry
 189          * point in Java.
 190          *
 191          * @return      void
 192          */
 193         public static final function main () {
 194                 // Load config file
 195                 require(self::detectCorePath() . '/inc/config.php');
 196
 197                 // Load all include files
 198                 require($cfg->getConfigEntry('base_path') . 'inc/includes.php');
 199
 200                 // Load all framework classes
 201                 require($cfg->getConfigEntry('base_path') . 'inc/classes.php');
 202
 203                 // Include the application selector
 204                 require($cfg->getConfigEntry('base_path') . 'inc/selector.php');
 205         } // END - main()
 206 } // END - class
 207
 208 // Developer mode active? Comment out if no dev!
 209 define('DEVELOPER', true);
 210
 211 // Log all exceptions (only debug! This option can create large error logs)
 212 //define('LOG_EXCEPTIONS', true);
 213
 214 //xdebug_start_trace();
 215
 216 // Do not remove the following line:
 217 ApplicationEntryPoint::main();
 218
 219 // [EOF]
 220 ?>