Store when a user knows another user based on phone number

Signed-off-by: Joas Schilling <coding@schilljs.com>

apps/provisioning_api/lib/Controller/UsersController.php

@@ -49,6 +49,8 @@
 use OC\Accounts\AccountManager;
 use OC\Authentication\Token\RemoteWipe;
 use OC\HintException;
+use OC\KnownUser\KnownUser;
+use OC\KnownUser\KnownUserMapper;
 use OCA\Provisioning_API\FederatedShareProviderFactory;
 use OCA\Settings\Mailer\NewUserMailHelper;
 use OCP\Accounts\IAccountManager;
@@ -89,6 +91,8 @@ class UsersController extends AUserData {
 	private $secureRandom;
 	/** @var RemoteWipe */
 	private $remoteWipe;
+	/** @var KnownUserMapper */
+	private $knownUserMapper;
 	/** @var IEventDispatcher */
 	private $eventDispatcher;
 
@@ -107,6 +111,7 @@ public function __construct(string $appName,
 								FederatedShareProviderFactory $federatedShareProviderFactory,
 								ISecureRandom $secureRandom,
 								RemoteWipe $remoteWipe,
+								KnownUserMapper $knownUserMapper,
 								IEventDispatcher $eventDispatcher) {
 		parent::__construct($appName,
 							$request,
@@ -125,6 +130,7 @@ public function __construct(string $appName,
 		$this->federatedShareProviderFactory = $federatedShareProviderFactory;
 		$this->secureRandom = $secureRandom;
 		$this->remoteWipe = $remoteWipe;
+		$this->knownUserMapper = $knownUserMapper;
 		$this->eventDispatcher = $eventDispatcher;
 	}
 
@@ -264,9 +270,25 @@ public function searchByPhoneNumbers(string $location, array $search): DataRespo
 		}
 
 		$matches = [];
+		$knownUsers = [];
 		foreach ($userMatches as $phone => $userId) {
 			// Not using the ICloudIdManager as that would run a search for each contact to find the display name in the address book
 			$matches[$normalizedNumberToKey[$phone]] = $userId . '@' . $cloudUrl;
+			$knownUsers[] = $userId;
+		}
+
+		/** @var IUser $user */
+		$user = $this->userSession->getUser();
+		$knownTo = $user->getUID();
+
+		// Cleanup all previous entries and only allow new matches
+		$this->knownUserMapper->deleteKnownTo($knownTo);
+
+		foreach ($knownUsers as $knownUser) {
+			$entity = new KnownUser();
+			$entity->setKnownTo($knownTo);
+			$entity->setKnownUser($knownUser);
+			$this->knownUserMapper->insert($entity);
 		}
 
 		return new DataResponse($matches);