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   1  <?php
   2  /** 
   3  *
   4  * @package phpBB3
   5  * @version $Id: common.php,v 1.201 2006/11/12 19:45:36 davidmj Exp $
   6  * @copyright (c) 2005 phpBB Group 
   7  * @license http://opensource.org/licenses/gpl-license.php GNU Public License 
   8  *
   9  * Minimum Requirement: PHP 4.3.3
  10  */
  11  
  12  /**
  13  */
  14  if (!defined('IN_PHPBB'))
  15  {
  16      exit;
  17  }
  18  
  19  $starttime = explode(' ', microtime());
  20  $starttime = $starttime[1] + $starttime[0];
  21  
  22  // Report all errors, except notices
  23  error_reporting(E_ALL ^ E_NOTICE);
  24  
  25  /*
  26  * Remove variables created by register_globals from the global scope
  27  * Thanks to Matt Kavanagh
  28  */
  29  function deregister_globals()
  30  {
  31      $not_unset = array(
  32          'GLOBALS'    => true,
  33          '_GET'        => true,
  34          '_POST'        => true,
  35          '_COOKIE'    => true,
  36          '_REQUEST'    => true,
  37          '_SERVER'    => true,
  38          '_SESSION'    => true,
  39          '_ENV'        => true,
  40          '_FILES'    => true,
  41          'phpEx'        => true,
  42          'phpbb_root_path'    => true
  43      );
  44  
  45      // Not only will array_merge and array_keys give a warning if
  46      // a parameter is not an array, array_merge will actually fail.
  47      // So we check if _SESSION has been initialised.
  48      if (!isset($_SESSION) || !is_array($_SESSION))
  49      {
  50          $_SESSION = array();
  51      }
  52  
  53      // Merge all into one extremely huge array; unset this later
  54      $input = array_merge(
  55          array_keys($_GET),
  56          array_keys($_POST),
  57          array_keys($_COOKIE),
  58          array_keys($_SERVER),
  59          array_keys($_SESSION),
  60          array_keys($_ENV),
  61          array_keys($_FILES)
  62      );
  63  
  64      foreach ($input as $varname)
  65      {
  66          if (isset($not_unset[$varname]))
  67          {
  68              // Hacking attempt. No point in continuing.
  69              exit;
  70          }
  71  
  72          unset($GLOBALS[$varname]);
  73      }
  74  
  75      unset($input);
  76  }
  77  
  78  // If we are on PHP >= 6.0.0 we do not need some code
  79  if (version_compare(phpversion(), '6.0.0-dev', '>='))
  80  {
  81      /**
  82      * @ignore
  83      */
  84      define('STRIP', false);
  85  }
  86  else
  87  {
  88      set_magic_quotes_runtime(0);
  89  
  90      // Be paranoid with passed vars
  91      if (@ini_get('register_globals') == '1' || strtolower(@ini_get('register_globals')) == 'on')
  92      {
  93          deregister_globals();
  94      }
  95  
  96      define('STRIP', (get_magic_quotes_gpc()) ? true : false);
  97  }
  98  
  99  if (defined('IN_CRON'))
 100  {
 101      chdir($phpbb_root_path);
 102      if (@function_exists('getcwd'))
 103      {
 104          $phpbb_root_path = getcwd() . '/';
 105      }
 106      else
 107      {
 108          // This is a best guess
 109          $phpbb_root_path = pathinfo($_SERVER['SCRIPT_FILENAME'], PATHINFO_DIRNAME) . '/';
 110      }
 111  }
 112  
 113  if (!file_exists($phpbb_root_path . 'config.' . $phpEx))
 114  {
 115      die("<p>The config.$phpEx file could not be found.</p><p><a href=\"{$phpbb_root_path}install/index.$phpEx\">Click here to install phpBB</a></p>");
 116  }
 117  
 118  require($phpbb_root_path . 'config.' . $phpEx);
 119  
 120  if (!defined('PHPBB_INSTALLED'))
 121  {
 122      // Redirect the user to the installer
 123      // We have to generate a full HTTP/1.1 header here since we can't guarantee to have any of the information
 124      // available as used by the redirect function
 125      $server_name = (!empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : getenv('SERVER_NAME');
 126      $server_port = (!empty($_SERVER['SERVER_PORT'])) ? (int) $_SERVER['SERVER_PORT'] : (int) getenv('SERVER_PORT');
 127      $secure = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 1 : 0;
 128  
 129      $script_name = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : getenv('PHP_SELF');
 130      if (!$script_name)
 131      {
 132          $script_name = (!empty($_SERVER['REQUEST_URI'])) ? $_SERVER['REQUEST_URI'] : getenv('REQUEST_URI');
 133      }
 134  
 135      // Replace any number of consecutive backslashes and/or slashes with a single slash
 136      // (could happen on some proxy setups and/or Windows servers)
 137      $script_path = trim(dirname($script_name)) . '/install/index.' . $phpEx;
 138      $script_path = preg_replace('#[\\\\/]{2,}#', '/', $script_path);
 139  
 140      $url = (($secure) ? 'https://' : 'http://') . $server_name;
 141  
 142      if ($server_port && (($secure && $server_port <> 443) || (!$secure && $server_port <> 80)))
 143      {
 144          $url .= ':' . $server_port;
 145      }
 146  
 147      $url .= $script_path;
 148      header('Location: ' . $url);
 149      exit;
 150  }
 151  
 152  if (defined('DEBUG_EXTRA'))
 153  {
 154      $base_memory_usage = 0;
 155      if (function_exists('memory_get_usage'))
 156      {
 157          $base_memory_usage = memory_get_usage();
 158      }
 159  }
 160  
 161  // Load Extensions
 162  if (!empty($load_extensions))
 163  {
 164      $load_extensions = explode(',', $load_extensions);
 165  
 166      foreach ($load_extensions as $extension)
 167      {
 168          @dl(trim($extension));
 169      }
 170  }
 171  
 172  // Include files
 173  require($phpbb_root_path . 'includes/acm/acm_' . $acm_type . '.' . $phpEx);
 174  require($phpbb_root_path . 'includes/cache.' . $phpEx);
 175  require($phpbb_root_path . 'includes/template.' . $phpEx);
 176  require($phpbb_root_path . 'includes/session.' . $phpEx);
 177  require($phpbb_root_path . 'includes/auth.' . $phpEx);
 178  require($phpbb_root_path . 'includes/functions.' . $phpEx);
 179  require($phpbb_root_path . 'includes/constants.' . $phpEx);
 180  require($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);
 181  require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);
 182  
 183  // Set PHP error handler to ours
 184  set_error_handler('msg_handler');
 185  
 186  // Instantiate some basic classes
 187  $user        = new user();
 188  $auth        = new auth();
 189  $template    = new template();
 190  $cache        = new cache();
 191  $db            = new $sql_db();
 192  
 193  // Connect to DB
 194  $db->sql_connect($dbhost, $dbuser, $dbpasswd, $dbname, $dbport, false);
 195  
 196  // We do not need this any longer, unset for safety purposes
 197  unset($dbpasswd);
 198  
 199  // Grab global variables, re-cache if necessary
 200  $config = $cache->obtain_config();
 201  
 202  // Disable board if the install/ directory is still present
 203  if (file_exists($phpbb_root_path . 'install') && !defined('ADMIN_START'))
 204  {
 205      $message = (!empty($config['board_disable_msg'])) ? $config['board_disable_msg'] : 'BOARD_DISABLE';
 206      trigger_error($message);
 207  }
 208  
 209  ?>