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   1  <?php
   2  /**
   3   * Smarty plugin
   4   * @package Smarty
   5   * @subpackage plugins
   6   */
   7  
   8  /**#@+
   9   * @access private
  10   */
  11  /**
  12   * determines if a resource is trusted or not
  13   *
  14   * @param string $resource_type
  15   * @param string $resource_name
  16   * @return boolean
  17   */
  18  
  19   // $resource_type, $resource_name
  20  
  21  function smarty_core_is_trusted($params, &$smarty)
  22  {
  23      $_smarty_trusted = false;
  24      if ($params['resource_type'] == 'file') {
  25          if (!empty($smarty->trusted_dir)) {
  26              $_rp = realpath($params['resource_name']);
  27              foreach ((array)$smarty->trusted_dir as $curr_dir) {
  28                  if (!empty($curr_dir) && is_readable ($curr_dir)) {
  29                      $_cd = realpath($curr_dir);
  30                      if (strncmp($_rp, $_cd, strlen($_cd)) == 0
  31                          && $_rp{strlen($_cd)} == DIRECTORY_SEPARATOR ) {
  32                          $_smarty_trusted = true;
  33                          break;
  34                      }
  35                  }
  36              }
  37          }
  38  
  39      } else {
  40          // resource is not on local file system
  41          $_smarty_trusted = call_user_func_array($smarty->_plugins['resource'][$params['resource_type']][0][3],
  42                                                  array($params['resource_name'], $smarty));
  43      }
  44  
  45      return $_smarty_trusted;
  46  }
  47  
  48  /* vim: set expandtab: */
  49  
  50  ?>