Chris@0
|
1 <?php
|
Chris@0
|
2
|
Chris@0
|
3 namespace Drupal\system\Controller;
|
Chris@0
|
4
|
Chris@0
|
5 use Drupal\Component\Utility\Crypt;
|
Chris@0
|
6 use Drupal\Component\Utility\Tags;
|
Chris@0
|
7 use Drupal\Core\Controller\ControllerBase;
|
Chris@0
|
8 use Drupal\Core\Entity\EntityAutocompleteMatcher;
|
Chris@0
|
9 use Drupal\Core\KeyValueStore\KeyValueStoreInterface;
|
Chris@0
|
10 use Drupal\Core\Site\Settings;
|
Chris@0
|
11 use Symfony\Component\DependencyInjection\ContainerInterface;
|
Chris@0
|
12 use Symfony\Component\HttpFoundation\JsonResponse;
|
Chris@0
|
13 use Symfony\Component\HttpFoundation\Request;
|
Chris@0
|
14 use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
|
Chris@0
|
15
|
Chris@0
|
16 /**
|
Chris@0
|
17 * Defines a route controller for entity autocomplete form elements.
|
Chris@0
|
18 */
|
Chris@0
|
19 class EntityAutocompleteController extends ControllerBase {
|
Chris@0
|
20
|
Chris@0
|
21 /**
|
Chris@0
|
22 * The autocomplete matcher for entity references.
|
Chris@0
|
23 *
|
Chris@0
|
24 * @var \Drupal\Core\Entity\EntityAutocompleteMatcher
|
Chris@0
|
25 */
|
Chris@0
|
26 protected $matcher;
|
Chris@0
|
27
|
Chris@0
|
28 /**
|
Chris@0
|
29 * The key value store.
|
Chris@0
|
30 *
|
Chris@0
|
31 * @var \Drupal\Core\KeyValueStore\KeyValueStoreInterface
|
Chris@0
|
32 */
|
Chris@0
|
33 protected $keyValue;
|
Chris@0
|
34
|
Chris@0
|
35 /**
|
Chris@0
|
36 * Constructs a EntityAutocompleteController object.
|
Chris@0
|
37 *
|
Chris@0
|
38 * @param \Drupal\Core\Entity\EntityAutocompleteMatcher $matcher
|
Chris@0
|
39 * The autocomplete matcher for entity references.
|
Chris@0
|
40 * @param \Drupal\Core\KeyValueStore\KeyValueStoreInterface $key_value
|
Chris@0
|
41 * The key value factory.
|
Chris@0
|
42 */
|
Chris@0
|
43 public function __construct(EntityAutocompleteMatcher $matcher, KeyValueStoreInterface $key_value) {
|
Chris@0
|
44 $this->matcher = $matcher;
|
Chris@0
|
45 $this->keyValue = $key_value;
|
Chris@0
|
46 }
|
Chris@0
|
47
|
Chris@0
|
48 /**
|
Chris@0
|
49 * {@inheritdoc}
|
Chris@0
|
50 */
|
Chris@0
|
51 public static function create(ContainerInterface $container) {
|
Chris@0
|
52 return new static(
|
Chris@0
|
53 $container->get('entity.autocomplete_matcher'),
|
Chris@0
|
54 $container->get('keyvalue')->get('entity_autocomplete')
|
Chris@0
|
55 );
|
Chris@0
|
56 }
|
Chris@0
|
57
|
Chris@0
|
58 /**
|
Chris@0
|
59 * Autocomplete the label of an entity.
|
Chris@0
|
60 *
|
Chris@0
|
61 * @param \Symfony\Component\HttpFoundation\Request $request
|
Chris@0
|
62 * The request object that contains the typed tags.
|
Chris@0
|
63 * @param string $target_type
|
Chris@0
|
64 * The ID of the target entity type.
|
Chris@0
|
65 * @param string $selection_handler
|
Chris@0
|
66 * The plugin ID of the entity reference selection handler.
|
Chris@0
|
67 * @param string $selection_settings_key
|
Chris@0
|
68 * The hashed key of the key/value entry that holds the selection handler
|
Chris@0
|
69 * settings.
|
Chris@0
|
70 *
|
Chris@0
|
71 * @return \Symfony\Component\HttpFoundation\JsonResponse
|
Chris@0
|
72 * The matched entity labels as a JSON response.
|
Chris@0
|
73 *
|
Chris@0
|
74 * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
|
Chris@0
|
75 * Thrown if the selection settings key is not found in the key/value store
|
Chris@0
|
76 * or if it does not match the stored data.
|
Chris@0
|
77 */
|
Chris@0
|
78 public function handleAutocomplete(Request $request, $target_type, $selection_handler, $selection_settings_key) {
|
Chris@0
|
79 $matches = [];
|
Chris@0
|
80 // Get the typed string from the URL, if it exists.
|
Chris@0
|
81 if ($input = $request->query->get('q')) {
|
Chris@0
|
82 $typed_string = Tags::explode($input);
|
Chris@17
|
83 $typed_string = mb_strtolower(array_pop($typed_string));
|
Chris@0
|
84
|
Chris@0
|
85 // Selection settings are passed in as a hashed key of a serialized array
|
Chris@0
|
86 // stored in the key/value store.
|
Chris@0
|
87 $selection_settings = $this->keyValue->get($selection_settings_key, FALSE);
|
Chris@0
|
88 if ($selection_settings !== FALSE) {
|
Chris@0
|
89 $selection_settings_hash = Crypt::hmacBase64(serialize($selection_settings) . $target_type . $selection_handler, Settings::getHashSalt());
|
Chris@0
|
90 if ($selection_settings_hash !== $selection_settings_key) {
|
Chris@0
|
91 // Disallow access when the selection settings hash does not match the
|
Chris@0
|
92 // passed-in key.
|
Chris@0
|
93 throw new AccessDeniedHttpException('Invalid selection settings key.');
|
Chris@0
|
94 }
|
Chris@0
|
95 }
|
Chris@0
|
96 else {
|
Chris@0
|
97 // Disallow access when the selection settings key is not found in the
|
Chris@0
|
98 // key/value store.
|
Chris@0
|
99 throw new AccessDeniedHttpException();
|
Chris@0
|
100 }
|
Chris@0
|
101
|
Chris@0
|
102 $matches = $this->matcher->getMatches($target_type, $selection_handler, $selection_settings, $typed_string);
|
Chris@0
|
103 }
|
Chris@0
|
104
|
Chris@0
|
105 return new JsonResponse($matches);
|
Chris@0
|
106 }
|
Chris@0
|
107
|
Chris@0
|
108 }
|