Exclude specified users from activity expiration

lib/AppInfo/Application.php

@@ -115,6 +115,7 @@ public function register(IRegistrationContext $context): void {
 				$c->get(IManager::class),
 				$c->get('ActivityConnectionAdapter'),
 				$c->get(LoggerInterface::class),
+				$c->get(IConfig::class),
 			);
 		});
 

lib/Data.php

@@ -33,6 +33,7 @@
 use OCP\Activity\IFilter;
 use OCP\Activity\IManager;
 use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
 use OCP\IDBConnection;
 use Psr\Log\LoggerInterface;
 
@@ -48,7 +49,9 @@ class Data {
 	public function __construct(
 		protected IManager $activityManager,
 		protected IDBConnection $connection,
-		protected LoggerInterface $logger) {
+		protected LoggerInterface $logger,
+		protected IConfig $config,
+	) {
 	}
 
 	/**
@@ -347,11 +350,21 @@ public function validateFilter($filterValue) {
 	 */
 	public function expire($expireDays = 365) {
 		$ttl = (60 * 60 * 24 * max(1, $expireDays));
-
 		$timelimit = time() - $ttl;
-		$this->deleteActivities([
+		$conditions = [
 			'timestamp' => [$timelimit, '<'],
-		]);
+		];
+
+		$excludedUsers = $this->config->getSystemValue('activity_expire_exclude_users', []);
+		if (!empty($excludedUsers)) {
+			foreach ($excludedUsers as $user) {
+				$conditions[] = [
+					'affecteduser' => [$user, '!=']
+				];
+			}
+		}
+
+		$this->deleteActivities($conditions);
 	}
 
 	/**

tests/DataTest.php

@@ -26,6 +26,8 @@
 use OCA\Activity\Data;
 use OCP\Activity\IManager;
 use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IConfig;
 use OCP\IDBConnection;
 use OCP\IL10N;
 use OCP\IUserSession;
@@ -66,11 +68,13 @@ protected function setUp(): void {
 		$this->dbConnection = \OC::$server->get(IDBConnection::class);
 		$this->realActivityManager = \OC::$server->get(IManager::class);
 		$this->logger = \OC::$server->get(NullLogger::class);
+		$this->config = $this->createMock(IConfig::class);
 
 		$this->data = new Data(
 			$activityManager,
 			$this->dbConnection,
-			$this->logger
+			$this->logger,
+			$this->config
 		);
 	}