Merge pull request #221 from dwd/OF-910

OF-910 - Error stanzas to MUC room should remove occupants

src/java/org/jivesoftware/openfire/muc/spi/MultiUserChatServiceImpl.java

@@ -310,20 +310,26 @@ public class MultiUserChatServiceImpl implements Component, MultiUserChatService
                 if (process((IQ)packet)) {
                     return;
                 }
+            } else if (packet instanceof Message) {
+                Message msg = (Message) packet;
+                if (msg.getType() == Message.Type.error) {
+                    // Bounced message, drop user.
+                    removeUser(packet.getFrom());
+                    return;
                 }
-            // OF-670: Kick MUC users who return permanent error conditions;
-            // also detects S2S-based users from non-responsive domains.
-            if (packet.getError() != null &&
-            	packet.getError().getType().equals(PacketError.Type.cancel)) {
+            } else if (packet instanceof Presence) {
+                Presence pres = (Presence) packet;
+                if (pres.getType() == Presence.Type.error) {
+                    // Bounced presence, drop user.
                     removeUser(packet.getFrom());
+                    return;
+                }
             }
-            else {
             // The packet is a normal packet that should possibly be sent to the room                
-                JID receipient = packet.getTo();
-                String roomName = receipient != null ? receipient.getNode() : null;
+            JID recipient = packet.getTo();
+            String roomName = recipient != null ? recipient.getNode() : null;
             getChatUser(packet.getFrom(), roomName).process(packet);
         }
-        }
         catch (Exception e) {
             Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
         }