getResponse());
}
/**
* Construct.
*
* @param Response $response
*/
protected function __construct(Response $response)
{
$this->response = $response;
}
/**
* Returns the oembed endPoint.
*
* @return Url|null
*/
public function getEndPoint()
{
$html = $this->response->getHtmlContent();
if ($html && ($url = self::getEndPointFromDom($html))) {
try {
$endPoint = $this->response->getUrl()->createAbsolute($url);
} catch (Exception $exception) {
return null;
}
if ($endPoint->getExtension() !== 'xml' && !$endPoint->hasQueryParameter('format')) {
return $endPoint->withQueryParameter('format', 'json');
}
return $endPoint;
}
}
/**
* Extract oembed information from the elements
* Note: Some sites use instead.
*
* @param DOMDocument $html
*
* @return string|null
*/
protected static function getEndPointFromDom(DOMDocument $html)
{
foreach (['link', 'meta'] as $tagName) {
foreach ($html->getElementsByTagName($tagName) as $link) {
$rel = trim(strtolower($link->getAttribute('rel')));
$href = $link->getAttribute('href');
if (empty($href)) {
continue;
}
if ($rel === 'alternate') {
switch (strtolower($link->getAttribute('type'))) {
case 'application/json+oembed':
case 'application/xml+oembed':
case 'text/json+oembed':
case 'text/xml+oembed':
return $href;
}
}
}
}
}
}