function invisimail_filter in Invisimail 5

Same name and namespace in other branches

1. 6 invisimail.module \invisimail_filter()

Implementation of hook_filter().

File

./invisimail.module, line 43

This module provides a filter that will search content for email addresses and replace them with their ascii equivalents before display. This is not a complete protection from spam harvesters, but it is some help.

Code

function invisimail_filter($op, $delta = 0, $format = -1, $text = '') {
  if ($op == 'list') {
    return array(
      0 => t('Encode email addresses'),
    );
  }
  switch ($delta) {
    case 0:
      switch ($op) {
        case 'description':
          return t('Hide email addresses from spam-bots.');
        case 'prepare':
          return $text;
        case 'process':
          return invisimail($text, $format);
        case 'settings':
          $form['invisimail_settings'] = array(
            '#type' => 'fieldset',
            '#title' => t('Invisimail email address encoding filter'),
            '#collapsible' => true,
            '#collapsed' => true,
          );
          $form['invisimail_settings']['invisimail_js_' . $format] = array(
            '#type' => 'radios',
            '#title' => t('JavaScript'),
            '#default_value' => variable_get('invisimail_js_' . $format, FALSE),
            '#options' => array(
              FALSE => t('No JavaScript - greater compatibility'),
              TRUE => t('Use JavaScript - greater security'),
            ),
            '#description' => t('Selecting "Use JavaScript" will nearly guarantee protection from spam harvesters. However email addresses will not appear for browsers without JavaScript capability.'),
          );
          $form['invisimail_settings']['invisimail_link_' . $format] = array(
            '#type' => 'radios',
            '#title' => t('Auto-link Emails'),
            '#default_value' => variable_get('invisimail_link_' . $format, FALSE),
            '#options' => array(
              FALSE => t('Do not create links.'),
              TRUE => t('Automatically create links from email addresses.'),
            ),
            '#description' => t('Selecting "Automatically create links" will convert email addresses into a clickable "mailto:" link.'),
          );
          return $form;
      }
      break;
  }
}