Implement the system status api endpoint. Closes #1936

app/Http/Controllers/Api/GeneralController.php

@@ -11,6 +11,7 @@
 
 namespace CachetHQ\Cachet\Http\Controllers\Api;
 
+use CachetHQ\Cachet\Integrations\Contracts\System;
 use CachetHQ\Cachet\Integrations\Releases;
 
 /**
@@ -44,4 +45,16 @@ class GeneralController extends AbstractApiController
             'latest'    => $latest,
         ])->item(CACHET_VERSION);
     }
+
+    /**
+     * Get the system status message.
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function status()
+    {
+        $system = app()->make(System::class)->getStatus();
+
+        return $this->item($system['system_message']);
+    }
 }

app/Http/Routes/ApiRoutes.php

@@ -33,6 +33,7 @@ class ApiRoutes
             $router->group(['middleware' => ['auth.api']], function (Registrar $router) {
                 $router->get('ping', 'GeneralController@ping');
                 $router->get('version', 'GeneralController@version');
+                $router->get('status', 'GeneralController@status');
 
                 $router->get('components', 'ComponentController@getComponents');
                 $router->get('components/groups', 'ComponentGroupController@getGroups');