Add mute button.

marietje/api/urls.py

@@ -18,4 +18,5 @@ urlpatterns = [
     url(r'^upload', views.upload),
     url(r'^volumedown', views.volume_down),
     url(r'^volumeup', views.volume_up),
+    url(r'^mute', views.mute),
 ]

marietje/api/views.py

@@ -267,3 +267,13 @@ def volume_up(request):
     command = QueueCommand(queue=request.user.queue, command='volume_up')
     command.save()
     return JsonResponse({})
+
+
+@require_http_methods(["POST"])
+@api_auth_required
+def mute(request):
+    if not request.user.has_perm('queues.can_control_volume'):
+        return HttpResponseForbidden()
+    command = QueueCommand(queue=request.user.queue, command='mute')
+    command.save()
+    return JsonResponse({})