feat(PublicFunctions): add getExApp method

CHANGELOG.md

@@ -13,6 +13,7 @@ Note: Nextcloud 27 is no longer supported since this version.
 
 - New OCS API endpoint to setAppInitProgress. The old one is marked as deprecated. #319
 - Added default timeout for requestToExApp function set to 3s. #277
+- Added new PublicFunction method `getExApp`. #326
 
 ### Changed
 

lib/PublicFunctions.php

@@ -101,4 +101,25 @@ public function asyncExAppRequestWithUserInit(
 		}
 		return $this->service->requestToExAppAsync($exApp, $route, $userId, $method, $params, $options, $request);
 	}
+
+	/**
+	 * Get basic ExApp info by appid
+	 *
+	 * @param string $appId
+	 *
+	 * @return array ExApp info (appid, version, name, enabled) or null if no ExApp found
+	 */
+	public function getExApp(string $appId): ?array {
+		$exApp = $this->exAppService->getExApp($appId);
+		if ($exApp !== null) {
+			$info = $exApp->jsonSerialize();
+			return [
+				'appid' => $info['appid'],
+				'version' => $info['version'],
+				'name' => $info['name'],
+				'enabled' => $info['enabled'],
+			];
+		}
+		return null;
+	}
 }