function recaptcha_mailhide_filter in reCAPTCHA 6

Same name and namespace in other branches

1. 5.2 recaptcha_mailhide.module \recaptcha_mailhide_filter()

Implements hook_filter().

File

recaptcha_mailhide/recaptcha_mailhide.module, line 40

Protects email addresses using the reCAPTCHA web service.

Code

function recaptcha_mailhide_filter($op, $delta = 0, $format = -1, $text = '') {
  switch ($op) {
    case 'list':
      return array(
        0 => t('reCAPTCHA Mailhide'),
      );
    case 'description':
      return recaptcha_mailhide_filter_tips($delta, $format);
    case 'settings':
      _recaptcha_mailhide_load_library();
      $form['filter_recaptcha'] = array(
        '#type' => 'fieldset',
        '#title' => t('reCAPTCHA Mailhide Keys'),
        '#collapsible' => TRUE,
        '#collapsed' => FALSE,
      );
      $form['filter_recaptcha']['recaptcha_mailhide_public_key'] = array(
        '#type' => 'textfield',
        '#title' => t('Public Key'),
        '#default_value' => variable_get('recaptcha_mailhide_public_key', ''),
        '#maxlength' => 50,
        '#description' => t('Your public Mailhide key obtained from <a href="@url">reCAPTCHA</a>.', array(
          '@url' => 'https://www.google.com/recaptcha/mailhide/apikey',
        )),
      );
      $form['filter_recaptcha']['recaptcha_mailhide_private_key'] = array(
        '#type' => 'textfield',
        '#title' => t('Private Key'),
        '#default_value' => variable_get('recaptcha_mailhide_private_key', ''),
        '#maxlength' => 50,
        '#description' => t('Your private Mailhide key obtained from <a href="@url">reCAPTCHA</a>.', array(
          '@url' => 'https://www.google.com/recaptcha/mailhide/apikey',
        )),
      );
      return $form;
      break;
    case 'process':
      global $_recaptcha_mailhide_public_key, $_recaptcha_mailhide_private_key, $_recaptcha_mailhide_nokey_warn;
      _recaptcha_mailhide_load_library();
      $_recaptcha_mailhide_public_key = variable_get('recaptcha_mailhide_public_key', '');
      $_recaptcha_mailhide_private_key = variable_get('recaptcha_mailhide_private_key', '');
      $text = ' ' . $text . ' ';
      $text = preg_replace_callback("!(<p>|<li>|<br\\s*/?>|[ \n\r\t\\(])([A-Za-z0-9._-]+@[A-Za-z0-9._+-]+\\.[A-Za-z]{2,4})([.,?]?)(?=(</p>|</li>|<br\\s*/?>|[ \n\r\t\\)]))!i", '_recaptcha_replace', $text);
      $text = drupal_substr($text, 1, -1);
      unset($_recaptcha_mailhide_public_key);
      unset($_recaptcha_mailhide_private_key);
      unset($_recaptcha_mailhide_nokey_warn);
      return $text;
    default:
      return $text;
  }
}