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view core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php @ 19:fa3358dc1485 tip
Add ndrum files
author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | c2387f117808 |
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<?php namespace Drupal\Core\StackMiddleware; use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpKernel\HttpKernelInterface; /** * Provides a middleware to determine the content type upon the accept header. * * @todo This is a temporary solution, remove this in https://www.drupal.org/node/2364011 */ class NegotiationMiddleware implements HttpKernelInterface { /** * The wrapped HTTP kernel. * * @var \Symfony\Component\HttpKernel\HttpKernelInterface */ protected $app; /** * Contains a hashmap of format as key and mimetype as value. * * @var array */ protected $formats = []; /** * Constructs a new NegotiationMiddleware. * * @param \Symfony\Component\HttpKernel\HttpKernelInterface $app * The wrapper HTTP kernel */ public function __construct(HttpKernelInterface $app) { $this->app = $app; } /** * {@inheritdoc} */ public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = TRUE) { // Register available mime types. foreach ($this->formats as $format => $mime_type) { $request->setFormat($format, $mime_type); } // Determine the request format using the negotiator. if ($requested_format = $this->getContentType($request)) { $request->setRequestFormat($requested_format); } return $this->app->handle($request, $type, $catch); } /** * Registers a format for a given MIME type. * * @param string $format * The format. * @param string $mime_type * The MIME type. * * @return $this */ public function registerFormat($format, $mime_type) { $this->formats[$format] = $mime_type; return $this; } /** * Gets the normalized type of a request. * * The normalized type is a short, lowercase version of the format, such as * 'html', 'json' or 'atom'. * * @param \Symfony\Component\HttpFoundation\Request $request * The request object from which to extract the content type. * * @return string * The normalized type of a given request. */ protected function getContentType(Request $request) { // AJAX iframe uploads need special handling, because they contain a JSON // response wrapped in <textarea>. if ($request->request->get('ajax_iframe_upload', FALSE)) { return 'iframeupload'; } if ($request->query->has('_format')) { return $request->query->get('_format'); } // No format was specified in the request. return NULL; } }