Delete existing presences for a user ID when they log in again.

WARNING!!! This changes a default. The old default is to allow multiple
presences, the new default disables this. As the feature currently has no users,
this should not present any difficulty and will alleviate the presence
issues somewhat.

OpenSim/Services/PresenceService/PresenceService.cs

@@ -45,10 +45,20 @@ namespace OpenSim.Services.PresenceService
                 LogManager.GetLogger(
                 MethodBase.GetCurrentMethod().DeclaringType);
 
+        protected bool m_allowDuplicatePresences = false;
+
         public PresenceService(IConfigSource config)
             : base(config)
         {
             m_log.Debug("[PRESENCE SERVICE]: Starting presence service");
+
+            IConfig presenceConfig = config.Configs["PresenceService"];
+            if (presenceConfig != null)
+            {
+                m_allowDuplicatePresences =
+                        presenceConfig.GetBoolean("AllowDuplicatePresences",
+                                                  m_allowDuplicatePresences);
+            }
         }
 
         public bool LoginAgent(string userID, UUID sessionID,
@@ -57,6 +67,9 @@ namespace OpenSim.Services.PresenceService
             //PresenceData[] d = m_Database.Get("UserID", userID);
             //m_Database.Get("UserID", userID);
 
+            if (!m_allowDuplicatePresences)
+                m_Database.Delete("UserID", userID.ToString());
+
             PresenceData data = new PresenceData();
 
             data.UserID = userID;

bin/Robust.ini.example

@@ -107,6 +107,9 @@ ServiceConnectors = "8003/OpenSim.Server.Handlers.dll:AssetServiceConnector,8003
 [PresenceService]
     ; for the server connector
     LocalServiceModule = "OpenSim.Services.PresenceService.dll:PresenceService"
+    ; Set this to true to allow the use of advanced web services and multiple
+    ; bots using one account
+    AllowDuplicatePresences = false;
 
 [AvatarService]
     ; for the server connector