function _htmlpurifier_process_text in HTML Purifier 7.2

Same name and namespace in other branches

1. 7 htmlpurifier.module \_htmlpurifier_process_text()

Processes HTML according to a format and returns purified HTML. Makes a cache pass if possible.

@note We ignore $delta because the only difference it makes is in the configuration screen.

Parameters

string $text: Text to purify

object $filter: The filter object containing settings for the given format.

object $format: The format object of the text to be filtered.

string $langcode: The language code of the text to be filtered.

boolean $cache: Whether or not to check the cache.

2 calls to _htmlpurifier_process_text()

_htmlpurifier_process in ./htmlpurifier.module

Process callback, used by htmlpurifier_filter_info().

_htmlpurifier_settings in ./htmlpurifier.module

Generates a settings form for configuring HTML Purifier.

File

./htmlpurifier.module, line 443

Implements HTML Purifier as a Drupal filter.

Code

function _htmlpurifier_process_text($text, $filter, $format, $langcode, $cache = TRUE) {

  // No need to run the filter if there isn't anything to filter
  // See https://drupal.org/node/1821178
  if ($text === '') {
    return '';
  }
  $return = $text;
  $htmlpurifier_library = libraries_load('htmlpurifier');
  if ($htmlpurifier_library['installed']) {
    if ($cache) {
      $cid = $format->format . ':' . $langcode . ':' . hash('sha256', $text);
      $old = cache_get($cid, 'cache_htmlpurifier');
      if ($old) {
        return $old->data;
      }
    }
    $config_name = isset($filter->settings['htmlpurifier_config_name']) ? $filter->settings['htmlpurifier_config_name'] : 'htmlpurifier_basic';
    $config = _htmlpurifier_get_config($format->format, $config_name);
    $purifier = new HTMLPurifier($config);
    $return = $purifier
      ->purify($text);

    // If using Filter.ExtractStyleBlocks we need to handle the CSSTidy output
    if ($config
      ->get('Filter.ExtractStyleBlocks') == TRUE) {
      libraries_load('csstidy');

      // We're only going to bother if we're caching! - no caching? no style blocks!
      if ($cache) {

        // Get style blocks, cache them, and help hook_nodeapi find the cache
        $styles = $purifier->context
          ->get('StyleBlocks');
        cache_set('css:' . $cid, $styles, 'cache_htmlpurifier', CACHE_PERMANENT);
        $return = '<!-- HTML Purifier Cache #' . $cid . ' -->' . $return;
      }
    }
    if ($cache) {
      cache_set($cid, $return, 'cache_htmlpurifier', CACHE_PERMANENT);
      static $done = FALSE;
      $done = TRUE;
    }
  }
  else {
    drupal_set_message($htmlpurifier_library['error message'], 'error', FALSE);
  }
  return $return;
}