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   1  <?php
   2  // $Id: php.inc,v 1.1.2.4 2010/07/15 20:41:17 merlinofchaos Exp $
   3  
   4  /**
   5   * @file
   6   * Plugin to provide access control based on evaluated PHP.
   7   */
   8  
   9  /**
  10   * Plugins are described by creating a $plugin array which will be used
  11   * by the system that includes this file.
  12   */
  13  $plugin = array(
  14    'title' => t("PHP Code"),
  15    'description' => t('Control access through arbitrary PHP code.'),
  16    'callback' => 'ctools_php_ctools_access_check',
  17    'default' => array('description' => '', 'php' => ''),
  18    'settings form' => 'ctools_php_ctools_access_settings',
  19    'summary' => 'ctools_php_ctools_access_summary',
  20    'all contexts' => TRUE,
  21  );
  22  
  23  /**
  24   * Settings form for the 'by perm' access plugin
  25   *
  26   * @todo Need a way to provide a list of all available contexts to be used by
  27   *       the eval-ed PHP.
  28   */
  29  function ctools_php_ctools_access_settings(&$form, &$form_state, $conf) {
  30    $perms = array();
  31  
  32    $form['settings']['description'] = array(
  33      '#type' => 'textfield',
  34      '#title' => t('Administrative desc'),
  35      '#default_value' => $conf['description'],
  36      '#description' => t('A description for this test for administrative purposes.'),
  37    );
  38    $form['settings']['php'] = array(
  39      '#type' => 'textarea',
  40      '#title' => t('PHP Code'),
  41      '#default_value' => $conf['php'],
  42      '#description' =>  t('Access will be granted if the following PHP code returns <code>TRUE</code>. Do not include &lt;?php ?&gt;. Note that executing incorrect PHP-code can break your Drupal site. All contexts will be available in the <em>$contexts</em> variable.'),
  43    );
  44    if (!user_access('use PHP for block visibility')) {
  45      $form['settings']['php']['#disabled'] = TRUE;
  46      $form['settings']['php']['#value'] = $conf['php'];
  47      $form['settings']['php']['#description'] .= ' ' . t('You do not have sufficient permissions to edit PHP code.');
  48    }
  49  }
  50  
  51  /**
  52   * Check for access.
  53   */
  54  function ctools_php_ctools_access_check($__conf, $contexts) {
  55    $access = eval($__conf['php']);
  56    return $access;
  57  }
  58  
  59  /**
  60   * Provide a summary description based upon the checked roles.
  61   */
  62  function ctools_php_ctools_access_summary($conf, $contexts) {
  63    return !empty($conf['description']) ? check_plain($conf['description']) : t('No description');
  64  }