Don't send notifications when within maintenance window. Fixes #2720

app/Bus/Handlers/Events/Component/SendComponentUpdateEmailNotificationHandler.php

@@ -12,12 +12,20 @@
 namespace CachetHQ\Cachet\Bus\Handlers\Events\Component;
 
 use CachetHQ\Cachet\Bus\Events\Component\ComponentStatusWasChangedEvent;
+use CachetHQ\Cachet\Integrations\Contracts\System;
 use CachetHQ\Cachet\Models\Component;
 use CachetHQ\Cachet\Models\Subscriber;
 use CachetHQ\Cachet\Notifications\Component\ComponentStatusChangedNotification;
 
 class SendComponentUpdateEmailNotificationHandler
 {
+    /**
+     * The system instance.
+     *
+     * @var \CachetHQ\Cachet\Integrations\Contracts\System
+     */
+    protected $system;
+
     /**
      * The subscriber instance.
      *
@@ -32,8 +40,9 @@ class SendComponentUpdateEmailNotificationHandler
      *
      * @return void
      */
-    public function __construct(Subscriber $subscriber)
+    public function __construct(System $system, Subscriber $subscriber)
     {
+        $this->system = $system;
         $this->subscriber = $subscriber;
     }
 
@@ -46,6 +55,11 @@ class SendComponentUpdateEmailNotificationHandler
      */
     public function handle(ComponentStatusWasChangedEvent $event)
     {
+        // Don't send component status updates if we're under maintenance.
+        if ($this->system->underMaintenance()) {
+            return false;
+        }
+
         $component = $event->component;
 
         // If we're silent, then don't send this.