* A tweak of the caps system so that new caps have random paths instead of a fixed path

* This allows caps requests to be routed to regions where the agent is currently a root agent instead of the region that they logged into as it did previously.   
* This fixes a wide variety of bugs related to 'can't do X once i've crossed a border'.
* The first seed cap request fails, the second one works.  (this generates an error message on the console)
* Experimental.

2 files changed, 31 insertions, 2 deletions

diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index ba8a356..957c75c 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -1867,8 +1867,25 @@ namespace OpenSim.Region.Environment.Scenes
         /// <param name="agentId"></param>   
         /// <param name="capsObjectPath"></param>         
         public void AddCapsHandler(LLUUID agentId)
-        {                             
-            String capsObjectPath = GetCapsPath(agentId);                
+        {       
+            // Here we clear out old Caps handlers for the agent
+            // this is required because we potentially have multiple simulators in an instance nearby.
+            Caps oldcap = null;
+            lock (m_capsHandlers)
+            {
+                if (m_capsHandlers.ContainsKey(agentId))
+                    oldcap = m_capsHandlers[agentId];
+            }
+            if (oldcap != null)
+            {
+                oldcap.DeregisterHandlers();
+            }
+
+            // Generate a new base caps path LLUUID.Random().ToString() instead of agentId.ToString()
+            // If the caps paths are not different for each region, the client and sim will do weird 
+            // things like send the request to a region the agent is no longer in.
+
+            String capsObjectPath = GetNewCapsPath(agentId);                
 
             m_log.DebugFormat(
                 "[CAPS]: Setting up CAPS handler for root agent {0} in {1}",
diff --git a/OpenSim/Region/Environment/Scenes/SceneBase.cs b/OpenSim/Region/Environment/Scenes/SceneBase.cs
index 5551173..f863bff 100644
--- a/OpenSim/Region/Environment/Scenes/SceneBase.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneBase.cs
@@ -214,5 +214,17 @@ namespace OpenSim.Region.Environment.Scenes
             
             return null;
         }
+        public string GetNewCapsPath(LLUUID agentID)
+        {
+            if (capsPaths.ContainsKey(agentID))
+            {
+                capsPaths[agentID] = LLUUID.Random().ToString();
+            }
+            else
+            {
+                capsPaths.Add(agentID, LLUUID.Random().ToString());
+            }
+            return GetCapsPath(agentID);
+        }
     }
 }