protected static function _changeExternalLinks(&$content)
{
if (empty($content)) {
return;
}
$dom = new Zend_Dom_Query();
$dom->setDocumentHtml($content, 'utf-8');
if ($dom->getDocumentErrors()) {
return;
}
$query = $dom->query('.externalLink');
if (!$query->count()) {
return;
}
$links = array();
/** @var DOMElement $a */
foreach ($query as $a) {
$link = $a->getAttribute('href');
if (empty($link)) {
continue;
}
$links[] = $link;
GFNLinkProxy_Api::preload($link);
}
foreach ($links as $link) {
$content = preg_replace_callback('#(<a[^>]+href=("|\')?)(' . preg_quote($link, '#') . ')(("|\')?[^>]+class=("|\')?[^"\']*externalLink[^"\']*("|\')?[^>]*>)#sU', array(__CLASS__, '_replace'), $content, 1);
}
}
