public function testAccessors()
{
$link = new LinkHeader('value');
$urlParameters = ['foo' => 'bar'];
$link->setUrlParameters($urlParameters);
$resource = new \stdClass();
$link->setResource($resource);
$this->assertEquals($urlParameters, $link->getUrlParameters());
$this->assertEquals($resource, $link->getResource());
}
public function onKernelRequest(KernelEvent $event)
{
if (strtoupper($event->getRequest()->getMethod()) !== 'LINK' && strtoupper($event->getRequest()->getMethod()) !== 'UNLINK') {
return;
}
if (!$event->getRequest()->headers->has('link')) {
throw new BadRequestHttpException('Please specify at least one Link.');
}
$requestMethod = $this->urlMatcher->getContext()->getMethod();
$this->urlMatcher->getContext()->setMethod('GET');
$links = [];
/*
* Due to limitations, multiple same-name headers are sent as comma
* separated values.
*
* This breaks those headers into Link headers following the format
* http://tools.ietf.org/html/rfc2068#section-19.6.2.4
*/
foreach (explode(',', $event->getRequest()->headers->get('link')) as $header) {
$header = trim($header);
$link = new LinkHeader($header);
try {
if ($urlParameters = $this->urlMatcher->match($link->getValue())) {
$link->setUrlParameters($urlParameters);
}
} catch (ResourceNotFoundException $exception) {
}
try {
$link->setResource($this->resourceTransformer->getResourceProxy($link->getValue()));
} catch (InvalidArgumentException $e) {
}
$links[] = $link;
}
$this->urlMatcher->getContext()->setMethod($requestMethod);
$event->getRequest()->attributes->set('links', $links);
}
/**
* @param LinkHeader $link
* @param array $allowedRelations
*/
protected function checkRelation(LinkHeader $link, array $allowedRelations)
{
if (!in_array($link->getRelation(), $allowedRelations)) {
throw new BadRequestHttpException('Relation type "' . $link->getRelation() . '" is not allowed."');
}
}
private function createLinkHeader($definition, $resource)
{
$link = new LinkHeader($definition);
$link->setResource($resource);
return $link;
}
