interface/main/myadmin/libraries/grab_globals.lib.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5
   6 /**
   7  * This library grabs the names and values of the variables sent or posted to a
   8  * script in the $_* arrays and sets simple globals variables from them. It does
   9  * the same work for the $PHP_SELF, $HTTP_ACCEPT_LANGUAGE and
  10  * $HTTP_AUTHORIZATION variables.
  11  *
  12  * loic1 - 2001/25/11: use the new globals arrays defined with php 4.1+
  13  */
  14
  15 function PMA_gpc_extract($array, &$target) {
  16     if (!is_array($array)) {
  17         return FALSE;
  18     }
  19     $is_magic_quotes = get_magic_quotes_gpc();
  20     foreach($array AS $key => $value) {
  21         if (is_array($value)) {
  22             // there could be a variable coming from a cookie of
  23             // another application, with the same name as this array
  24             unset($target[$key]);
  25
  26             PMA_gpc_extract($value, $target[$key]);
  27         } else if ($is_magic_quotes) {
  28             $target[$key] = stripslashes($value);
  29         } else {
  30             $target[$key] = $value;
  31         }
  32     }
  33     return TRUE;
  34 }
  35
  36 if (!empty($_GET)) {
  37     PMA_gpc_extract($_GET, $GLOBALS);
  38 } // end if
  39
  40 if (!empty($_POST)) {
  41     PMA_gpc_extract($_POST, $GLOBALS);
  42 } // end if
  43
  44 if (!empty($_FILES)) {
  45     foreach($_FILES AS $name => $value) {
  46         $$name = $value['tmp_name'];
  47         ${$name . '_name'} = $value['name'];
  48     }
  49 } // end if
  50
  51 if (!empty($_SERVER)) {
  52     $server_vars = array('PHP_SELF', 'HTTP_ACCEPT_LANGUAGE', 'HTTP_AUTHORIZATION');
  53     foreach ($server_vars as $current) {
  54         if (isset($_SERVER[$current])) {
  55             $$current = $_SERVER[$current];
  56         } elseif (!isset($$current)) {
  57             $$current = '';
  58         }
  59     }
  60     unset($server_vars, $current);
  61 } // end if
  62
  63 // Security fix: disallow accessing serious server files via "?goto="
  64 if (isset($goto) && strpos(' ' . $goto, '/') > 0 && substr($goto, 0, 2) != './') {
  65     unset($goto);
  66 } // end if
  67
  68 ?>