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<?php |
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declare( strict_types = 1 ); |
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namespace WMDE\Fundraising\Frontend\App\EventHandlers; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\Event\KernelEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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/** |
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* Add indicator attribute `request_stack.is_json` to request for JSON/JSONP requests, |
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* based on the HTTP `Accept` (accepted content type) header. |
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* |
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* @todo When https://phabricator.wikimedia.org/T263436 is done, use Symfony's "_format" parameter instead, |
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* see https://symfony.com/doc/current/routing.html#special-parameters |
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*/ |
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class AddIndicatorAttributeForJsonRequests implements EventSubscriberInterface { |
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private const PRIORITY = 64; |
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public const REQUEST_IS_JSON_ATTRIBUTE = 'request_stack.is_json'; |
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public static function getSubscribedEvents() { |
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return [ |
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// Priority needs to be higher than the one for error handling interception, |
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// to be able to recognize JSON requests when creating an error handling response |
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KernelEvents::REQUEST => [ 'onKernelRequest', self::PRIORITY ], |
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]; |
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} |
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public function onKernelRequest( KernelEvent $event ): void { |
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$request = $event->getRequest(); |
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if ( $this->isJsonRequest( $request ) || $this->isJsonPRequest( $request ) ) { |
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$request->attributes->set( self::REQUEST_IS_JSON_ATTRIBUTE, true ); |
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} |
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} |
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private function isJsonRequest( Request $request ): bool { |
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return in_array( 'application/json', $request->getAcceptableContentTypes() ); |
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} |
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private function isJsonPRequest( Request $request ): bool { |
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return in_array( 'application/javascript', $request->getAcceptableContentTypes() ) |
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&& $request->get( 'callback', null ); |
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} |
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} |
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wmde /
FundraisingFrontend
