libraries/grab_globals.lib.php3

   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 '$HTTP_*_VARS' / $_* arrays and sets simple globals variables
   9  * from them. It does the same work for the $PHP_SELF variable.
  10  *
  11  * loic1 - 2001/25/11: use the new globals arrays defined with php 4.1+
  12  */
  13 if (!defined('PMA_GRAB_GLOBALS_INCLUDED')) {
  14     define('PMA_GRAB_GLOBALS_INCLUDED', 1);
  15
  16     function PMA_gpc_extract($array, &$target) {
  17         if (!is_array($array)) {
  18             return FALSE;
  19         }
  20         $is_magic_quotes = get_magic_quotes_gpc();
  21         reset($array);
  22         while (list($key, $value) = each($array)) {
  23             if (is_array($value)) {
  24                 PMA_gpc_extract($value, $target[$key]);
  25             } else if ($is_magic_quotes) {
  26                 $target[$key] = stripslashes($value);
  27             } else {
  28                 $target[$key] = $value;
  29             }
  30         }
  31         reset($array);
  32         return TRUE;
  33     }
  34
  35     if (!empty($_GET)) {
  36         PMA_gpc_extract($_GET, $GLOBALS);
  37     } else if (!empty($HTTP_GET_VARS)) {
  38         PMA_gpc_extract($HTTP_GET_VARS, $GLOBALS);
  39     } // end if
  40
  41     if (!empty($_POST)) {
  42         PMA_gpc_extract($_POST, $GLOBALS);
  43     } else if (!empty($HTTP_POST_VARS)) {
  44         PMA_gpc_extract($HTTP_POST_VARS, $GLOBALS);
  45     } // end if
  46
  47     if (!empty($_FILES)) {
  48         while (list($name, $value) = each($_FILES)) {
  49             $$name = $value['tmp_name'];
  50             ${$name . '_name'} = $value['name'];
  51         }
  52     } else if (!empty($HTTP_POST_FILES)) {
  53         while (list($name, $value) = each($HTTP_POST_FILES)) {
  54             $$name = $value['tmp_name'];
  55             ${$name . '_name'} = $value['name'];
  56         }
  57     } // end if
  58
  59     if (!empty($_SERVER) && isset($_SERVER['PHP_SELF'])) {
  60         $PHP_SELF = $_SERVER['PHP_SELF'];
  61     } else if (!empty($HTTP_SERVER_VARS) && isset($HTTP_SERVER_VARS['PHP_SELF'])) {
  62         $PHP_SELF = $HTTP_SERVER_VARS['PHP_SELF'];
  63     } // end if
  64
  65     // Securety fix: disallow accessing serious server files via "?goto="
  66     if (isset($goto) && strpos(' ' . $goto, '/') > 0 && substr($goto, 0, 2) != './') {
  67         unset($goto);
  68     } // end if
  69
  70 } // $__PMA_GRAB_GLOBALS_LIB__
  71 ?>