public function FilterSpamspan::process in SpamSpan filter 8

Same name and namespace in other branches

1. 8.2 src/Plugin/Filter/FilterSpamspan.php \Drupal\spamspan\Plugin\Filter\FilterSpamspan::process()

Performs the filter processing.

Parameters

string $text: The text string to be filtered.

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

Return value

\Drupal\filter\FilterProcessResult The filtered text, wrapped in a FilterProcessResult object, and possibly with associated assets, cacheability metadata and placeholders.

Overrides FilterInterface::process

See also

\Drupal\filter\FilterProcessResult

File

src/Plugin/Filter/FilterSpamspan.php, line 63

Class

FilterSpamspan

Provides a filter to obfuscate email addresses.

Namespace

Drupal\spamspan\Plugin\Filter

Code

public function process($text, $langcode) {
  $this->textAltered = FALSE;

  // HTML image tags need to be handled separately, as they may contain base64
  // encoded images slowing down the email regex function.
  // Therefore, remove all image contents and add them back later.
  // See https://drupal.org/node/1243042 for details.
  $images = [
    [],
  ];
  preg_match_all(self::PATTERN_IMG_INLINE, $text, $images);
  $text = preg_replace(self::PATTERN_IMG_INLINE, self::PATTERN_IMG_PLACEHOLDER, $text);
  if (!empty($this->settings['spamspan_parse_dom'])) {
    $text = $this
      ->processAsDom($text, $this->textAltered);
  }
  else {
    $text = $this
      ->processAsText($text, $this->textAltered);
  }

  // Revert back to the original image contents.
  foreach ($images[0] as $image) {
    $text = preg_replace('/' . self::PATTERN_IMG_PLACEHOLDER . '/', $image, $text, 1);
  }
  $result = new FilterProcessResult($text);
  if ($this->textAltered) {
    $result
      ->addAttachments([
      'library' => [
        'spamspan/obfuscate',
      ],
    ]);
    if ($this->settings['spamspan_use_graphic']) {
      $result
        ->addAttachments([
        'library' => [
          'spamspan/atsign',
        ],
      ]);
    }
  }
  return $result;
}