Handle exception when saving calendar properties

UI/Scheduler/UIxCalendarProperties.m

@@ -1,6 +1,6 @@
 /* UIxCalendarProperties.m - this file is part of SOGo
  *
- * Copyright (C) 2008-2015 Inverse inc.
+ * Copyright (C) 2008-2018 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,8 +21,10 @@
 #import <Foundation/NSDictionary.h>
 #import <Foundation/NSValue.h>
 
+#import <NGObjWeb/NSException+HTTP.h>
 #import <NGObjWeb/WORequest.h>
 
+#import <SOGo/NSDictionary+Utilities.h>
 #import <SOGo/NSString+Utilities.h>
 
 #import <Appointments/SOGoWebAppointmentFolder.h>
@@ -73,12 +75,16 @@
 - (WOResponse *) savePropertiesAction
 {
   WORequest *request;
-  NSDictionary *params;
+  WOResponse *response;
+  NSDictionary *params, *message;
   id o, values;
 
   request = [context request];
   params = [[request contentAsString] objectFromJSONString];
+  response = [self responseWith204];
 
+  NS_DURING
+    {
       o = [params objectForKey: @"name"];
       if ([o isKindOfClass: [NSString class]])
         [calendar renameTo: o];
@@ -130,8 +136,17 @@
           if ([o isKindOfClass: [NSString class]])
             [calendar setNotifiedUserOnPersonalModifications: o];
         }
+    }
+  NS_HANDLER
+    {
+      message = [NSDictionary dictionaryWithObject: [localException reason] forKey: @"message"];
+      response = [self responseWithStatus: 400 /* Bad Request */
+                                andString: [message jsonRepresentation]];
 
-  return [self responseWith204];
+    }
+  NS_ENDHANDLER;
+
+  return response;
 }
 
 @end