7 files changed, 145 insertions, 21 deletions

diff --git a/OpenSim/Services/Connectors/Asset/AssetServiceConnector.cs b/OpenSim/Services/Connectors/Asset/AssetServiceConnector.cs
index 65b3537..e63dd50 100644
--- a/OpenSim/Services/Connectors/Asset/AssetServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Asset/AssetServiceConnector.cs
@@ -30,6 +30,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
+using System.Timers;
 using Nini.Config;
 using OpenSim.Framework;
 using OpenSim.Framework.Console;
@@ -48,7 +49,9 @@ namespace OpenSim.Services.Connectors
 
         private string m_ServerURI = String.Empty;
         private IImprovedAssetCache m_Cache = null;
-
+        private int m_retryCounter;
+        private Dictionary<int, List<AssetBase>> m_retryQueue = new Dictionary<int, List<AssetBase>>();
+        private Timer m_retryTimer;
         public AssetServicesConnector()
         {
         }
@@ -85,6 +88,55 @@ namespace OpenSim.Services.Connectors
             MainConsole.Instance.Commands.AddCommand("asset", false, "dump asset",
                                           "dump asset <id> <file>",
                                           "dump one cached asset", HandleDumpAsset);
+
+            m_retryTimer = new Timer();
+            m_retryTimer.Elapsed += new ElapsedEventHandler(retryCheck);
+            m_retryTimer.Interval = 60000;
+        }
+
+        protected void retryCheck(object source, ElapsedEventArgs e)
+        {
+            m_retryCounter++;
+            if (m_retryCounter > 60) m_retryCounter -= 60;
+            List<int> keys = new List<int>();
+            foreach (int a in m_retryQueue.Keys)
+            {
+                keys.Add(a);
+            }
+            foreach (int a in keys)
+            {
+                //We exponentially fall back on frequency until we reach one attempt per hour
+                //The net result is that we end up in the queue for roughly 24 hours..
+                //24 hours worth of assets could be a lot, so the hope is that the region admin
+                //will have gotten the asset connector back online quickly!
+
+                int timefactor = a ^ 2; 
+                if (timefactor > 60)
+                {
+                    timefactor = 60;
+                }
+
+                //First, find out if we care about this timefactor
+                if (timefactor % a == 0)
+                {
+                    //Yes, we do!   
+                    List<AssetBase> retrylist = m_retryQueue[a];
+                    m_retryQueue.Remove(a);
+
+                    foreach(AssetBase ass in retrylist)
+                    {
+                        Store(ass); //Store my ass. This function will put it back in the dictionary if it fails
+                    }
+                }
+            }
+
+            if (m_retryQueue.Count == 0)
+            {
+                //It might only be one tick per minute, but I have
+                //repented and abandoned my wasteful ways
+                m_retryCounter = 0;
+                m_retryTimer.Stop();
+            }
         }
 
         protected void SetCache(IImprovedAssetCache cache)
@@ -204,11 +256,10 @@ namespace OpenSim.Services.Connectors
 
         public string Store(AssetBase asset)
         {
+            if (m_Cache != null)
+                m_Cache.Cache(asset);
             if (asset.Temporary || asset.Local)
             {
-                if (m_Cache != null)
-                    m_Cache.Cache(asset);
-
                 return asset.ID;
             }
 
@@ -219,23 +270,56 @@ namespace OpenSim.Services.Connectors
             {
                 newID = SynchronousRestObjectRequester.
                         MakeRequest<AssetBase, string>("POST", uri, asset);
+                if (newID == null)
+                {
+                    newID = UUID.Zero.ToString();
+                }
             }
             catch (Exception e)
             {
-                m_log.WarnFormat("[ASSET CONNECTOR]: Unable to send asset {0} to asset server. Reason: {1}", asset.ID, e.Message);
+                newID = UUID.Zero.ToString();
             }
 
-            if (newID != String.Empty)
+            if (newID == UUID.Zero.ToString())
             {
-                // Placing this here, so that this work with old asset servers that don't send any reply back
-                // SynchronousRestObjectRequester returns somethins that is not an empty string
-                if (newID != null)
-                    asset.ID = newID;
-
-                if (m_Cache != null)
-                    m_Cache.Cache(asset);
+                //The asset upload failed, put it in a queue for later
+                asset.UploadAttempts++;
+                if (asset.UploadAttempts > 30)
+                {
+                    //By this stage we've been in the queue for a good few hours;
+                    //We're going to drop the asset.
+                    m_log.ErrorFormat("[Assets] Dropping asset {0} - Upload has been in the queue for too long.", asset.ID.ToString());
+                }
+                else
+                {
+                    if (!m_retryQueue.ContainsKey(asset.UploadAttempts))
+                    {
+                        m_retryQueue.Add(asset.UploadAttempts, new List<AssetBase>());
+                    }
+                    List<AssetBase> m_queue = m_retryQueue[asset.UploadAttempts];
+                    m_queue.Add(asset);
+                    m_log.WarnFormat("[Assets] Upload failed: {0} - Requeuing asset for another run.", asset.ID.ToString());
+                    m_retryTimer.Start();
+                }
+            }
+            else
+            {
+                if (asset.UploadAttempts > 0)
+                {
+                    m_log.InfoFormat("[Assets] Upload of {0} succeeded after {1} failed attempts", asset.ID.ToString(), asset.UploadAttempts.ToString());
+                }
+                if (newID != String.Empty)
+                {
+                    // Placing this here, so that this work with old asset servers that don't send any reply back
+                    // SynchronousRestObjectRequester returns somethins that is not an empty string
+                    if (newID != null)
+                        asset.ID = newID;
+
+                    if (m_Cache != null)
+                        m_Cache.Cache(asset);
+                }
             }
-            return newID;
+            return asset.ID;
         }
 
         public bool UpdateContent(string id, byte[] data)
diff --git a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
index c426bba..6f159a0 100644
--- a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
@@ -87,7 +87,12 @@ namespace OpenSim.Services.Connectors.Hypergrid
             paramList.Add(hash);
 
             XmlRpcRequest request = new XmlRpcRequest("link_region", paramList);
-            string uri = "http://" + info.ExternalEndPoint.Address + ":" + info.HttpPort + "/";
+            IPEndPoint ext = info.ExternalEndPoint;
+            string uri = "";
+            if (ext != null)
+            {
+                uri = "http://" + ext.Address + ":" + info.HttpPort + "/";
+            }
             //m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Linking to " + uri);
             XmlRpcResponse response = null;
             try
@@ -189,7 +194,12 @@ namespace OpenSim.Services.Connectors.Hypergrid
             paramList.Add(hash);
 
             XmlRpcRequest request = new XmlRpcRequest("get_region", paramList);
-            string uri = "http://" + gatekeeper.ExternalEndPoint.Address + ":" + gatekeeper.HttpPort + "/";
+            IPEndPoint ext = gatekeeper.ExternalEndPoint;
+            string uri = "";
+            if (ext != null)
+            {
+                uri = "http://" + ext.Address + ":" + gatekeeper.HttpPort + "/";
+            }
             m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: contacting " + uri);
             XmlRpcResponse response = null;
             try
diff --git a/OpenSim/Services/Connectors/Land/LandServiceConnector.cs b/OpenSim/Services/Connectors/Land/LandServiceConnector.cs
index 06bc11c..0223a77 100644
--- a/OpenSim/Services/Connectors/Land/LandServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Land/LandServiceConnector.cs
@@ -83,6 +83,8 @@ namespace OpenSim.Services.Connectors
                 if (info != null) // just to be sure
                 {
                     XmlRpcRequest request = new XmlRpcRequest("land_data", paramList);
+                    
+                    //Possible nullref from info.externalendpoint will be caught here
                     string uri = "http://" + info.ExternalEndPoint.Address + ":" + info.HttpPort + "/";
                     XmlRpcResponse response = request.Send(uri, 10000);
                     if (response.IsFault)
diff --git a/OpenSim/Services/Connectors/Neighbour/NeighbourServiceConnector.cs b/OpenSim/Services/Connectors/Neighbour/NeighbourServiceConnector.cs
index 0a982f8..daf0439 100644
--- a/OpenSim/Services/Connectors/Neighbour/NeighbourServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Neighbour/NeighbourServiceConnector.cs
@@ -87,7 +87,9 @@ namespace OpenSim.Services.Connectors
 
         public bool DoHelloNeighbourCall(GridRegion region, RegionInfo thisRegion)
         {
-            string uri = "http://" + region.ExternalEndPoint.Address + ":" + region.HttpPort + "/region/" + thisRegion.RegionID + "/";
+            IPEndPoint ext = region.ExternalEndPoint;
+            if (ext == null) return false;
+            string uri = "http://" + ext.Address + ":" + region.HttpPort + "/region/" + thisRegion.RegionID + "/";
             //m_log.Debug("   >>> DoHelloNeighbourCall <<< " + uri);
 
             WebRequest HelloNeighbourRequest = WebRequest.Create(uri);
diff --git a/OpenSim/Services/Connectors/Presence/PresenceServiceConnector.cs b/OpenSim/Services/Connectors/Presence/PresenceServiceConnector.cs
index 41ebeaf..9f86078 100644
--- a/OpenSim/Services/Connectors/Presence/PresenceServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Presence/PresenceServiceConnector.cs
@@ -300,6 +300,14 @@ namespace OpenSim.Services.Connectors
                 {
                     pinfo = new PresenceInfo((Dictionary<string, object>)replyData["result"]);
                 }
+                else
+                {
+                    m_log.DebugFormat("[PRESENCE CONNECTOR]: Invalid reply (result not dictionary) received from presence server when querying for sessionID {0}", sessionID.ToString());
+                }
+            }
+            else
+            {
+                m_log.DebugFormat("[PRESENCE CONNECTOR]: Invalid reply received from presence server when querying for sessionID {0}", sessionID.ToString());
             }
 
             return pinfo;
diff --git a/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs b/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
index bea8172..496eb2c 100644
--- a/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
+++ b/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
@@ -122,6 +122,8 @@ namespace OpenSim.Services.Connectors.SimianGrid
 
         public string RegisterRegion(UUID scopeID, GridRegion regionInfo)
         {
+            IPEndPoint ext = regionInfo.ExternalEndPoint;
+            if (ext == null) return "Region registration for " + regionInfo.RegionName + " failed: Could not resolve EndPoint";
             // Generate and upload our map tile in PNG format to the SimianGrid AddMapTile service
             Scene scene;
             if (m_scenes.TryGetValue(regionInfo.RegionID, out scene))
@@ -139,7 +141,7 @@ namespace OpenSim.Services.Connectors.SimianGrid
                 { "ServerURI", OSD.FromString(regionInfo.ServerURI) },
                 { "InternalAddress", OSD.FromString(regionInfo.InternalEndPoint.Address.ToString()) },
                 { "InternalPort", OSD.FromInteger(regionInfo.InternalEndPoint.Port) },
-                { "ExternalAddress", OSD.FromString(regionInfo.ExternalEndPoint.Address.ToString()) },
+                { "ExternalAddress", OSD.FromString(ext.Address.ToString()) },
                 { "ExternalPort", OSD.FromInteger(regionInfo.ExternalEndPoint.Port) },
                 { "MapTexture", OSD.FromUUID(regionInfo.TerrainImage) },
                 { "Access", OSD.FromInteger(regionInfo.Access) },
diff --git a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
index 32f02fb..0947b5f 100644
--- a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
@@ -348,9 +348,11 @@ namespace OpenSim.Services.Connectors.Simulation
 
         public bool RetrieveAgent(GridRegion destination, UUID id, out IAgentData agent)
         {
+            IPEndPoint ext = destination.ExternalEndPoint;
             agent = null;
+            if (ext == null) return false;
             // Eventually, we want to use a caps url instead of the agentID
-            string uri = "http://" + destination.ExternalEndPoint.Address + ":" + destination.HttpPort + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
+            string uri = "http://" + ext.Address + ":" + destination.HttpPort + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
             //Console.WriteLine("   >>> DoRetrieveRootAgentCall <<< " + uri);
 
             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
@@ -442,7 +444,7 @@ namespace OpenSim.Services.Connectors.Simulation
             return true;
         }
 
-        public bool CloseAgent(GridRegion destination, UUID id)
+        private bool CloseAgent(GridRegion destination, UUID id, bool ChildOnly)
         {
             string uri = string.Empty;
             try
@@ -459,6 +461,8 @@ namespace OpenSim.Services.Connectors.Simulation
 
             WebRequest request = WebRequest.Create(uri);
             request.Method = "DELETE";
+            if (ChildOnly)
+                request.Method += "CHILD";
             request.Timeout = 10000;
 
             StreamReader sr = null;
@@ -491,6 +495,16 @@ namespace OpenSim.Services.Connectors.Simulation
             return true;
         }
 
+        public bool CloseChildAgent(GridRegion destination, UUID id)
+        {
+            return CloseAgent(destination, id, true);
+        }
+
+        public bool CloseAgent(GridRegion destination, UUID id)
+        {
+            return CloseAgent(destination, id, false);
+        }
+
         #endregion Agents
 
         #region Objects
@@ -502,8 +516,10 @@ namespace OpenSim.Services.Connectors.Simulation
 
         public bool CreateObject(GridRegion destination, ISceneObject sog, bool isLocalCall)
         {
+            IPEndPoint ext = destination.ExternalEndPoint;
+            if (ext == null) return false;
             string uri
-                = "http://" + destination.ExternalEndPoint.Address + ":" + destination.HttpPort + ObjectPath() + sog.UUID + "/";
+                = "http://" + ext.Address + ":" + destination.HttpPort + ObjectPath() + sog.UUID + "/";
             //m_log.Debug("   >>> DoCreateObjectCall <<< " + uri);
 
             WebRequest ObjectCreateRequest = WebRequest.Create(uri);