function AcceptHeaderMatcher::filter
Same name and namespace in other branches
- 9 core/modules/system/tests/modules/accept_header_routing_test/src/Routing/AcceptHeaderMatcher.php \Drupal\accept_header_routing_test\Routing\AcceptHeaderMatcher::filter()
- 8.9.x core/modules/system/tests/modules/accept_header_routing_test/src/Routing/AcceptHeaderMatcher.php \Drupal\accept_header_routing_test\Routing\AcceptHeaderMatcher::filter()
- 10 core/modules/system/tests/modules/accept_header_routing_test/src/Routing/AcceptHeaderMatcher.php \Drupal\accept_header_routing_test\Routing\AcceptHeaderMatcher::filter()
Overrides FilterInterface::filter
File
-
core/
modules/ system/ tests/ modules/ accept_header_routing_test/ src/ Routing/ AcceptHeaderMatcher.php, line 18
Class
- AcceptHeaderMatcher
- Filters routes based on the media type specified in the HTTP Accept headers.
Namespace
Drupal\accept_header_routing_test\RoutingCode
public function filter(RouteCollection $collection, Request $request) {
// Generates a list of Symfony formats matching the acceptable MIME types.
// @todo replace by proper content negotiation library.
$acceptable_mime_types = $request->getAcceptableContentTypes();
$acceptable_formats = array_filter(array_map([
$request,
'getFormat',
], $acceptable_mime_types));
$primary_format = $request->getRequestFormat();
foreach ($collection as $name => $route) {
// _format could be a |-delimited list of supported formats.
$supported_formats = array_filter(explode('|', $route->getRequirement('_format') ?? ''));
if (empty($supported_formats)) {
// No format restriction on the route, so it always matches. Move it to
// the end of the collection by re-adding it.
$collection->add($name, $route);
}
elseif (in_array($primary_format, $supported_formats)) {
// Perfect match, which will get a higher priority by leaving the route
// on top of the list.
}
elseif (in_array('*/*', $acceptable_mime_types) || array_intersect($acceptable_formats, $supported_formats)) {
// Move it to the end of the list.
$collection->add($name, $route);
}
else {
// Remove the route if it does not match at all.
$collection->remove($name);
}
}
if (count($collection)) {
return $collection;
}
// We do not throw a
// \Symfony\Component\Routing\Exception\ResourceNotFoundException here
// because we don't want to return a 404 status code, but rather a 406.
throw new NotAcceptableHttpException('No route found for the specified formats ' . implode(' ', $acceptable_mime_types));
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.