From 21a6ef5bb63e56612b8e03002dbee9ff1fcdc4c0 Mon Sep 17 00:00:00 2001
From: Diva Canto
Date: Fri, 21 Sep 2012 17:58:44 -0700
Subject: This fixes HG attachments' missing assets (textures, etc). Also,
 further improvements on HGUuidGatherer: if the assets are already in this
 grid don't fetch them again.

---
 .../EntityTransfer/HGEntityTransferModule.cs       | 28 ++++++++++++++++++++++
 OpenSim/Region/Framework/Scenes/UuidGatherer.cs    | 27 +++++++++++++--------
 2 files changed, 45 insertions(+), 10 deletions(-)

diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
index 0b386d3..a6698e6 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/HGEntityTransferModule.cs
@@ -150,6 +150,34 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
             if (m_Enabled)
                 scene.RegisterModuleInterface<IUserAgentVerificationModule>(this);
+
+            scene.EventManager.OnIncomingSceneObject += OnIncomingSceneObject;
+        }
+
+        void OnIncomingSceneObject(SceneObjectGroup so)
+        {
+            if (!so.IsAttachment)
+                return;
+
+            if (so.Scene.UserManagementModule.IsLocalGridUser(so.AttachedAvatar))
+                return;
+
+            // foreign user
+            AgentCircuitData aCircuit = so.Scene.AuthenticateHandler.GetAgentCircuitData(so.AttachedAvatar);
+            if (aCircuit != null && (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0)
+            {
+                if (aCircuit.ServiceURLs != null && aCircuit.ServiceURLs.ContainsKey("AssetServerURI"))
+                {
+                    string url = aCircuit.ServiceURLs["AssetServerURI"].ToString();
+                    m_log.DebugFormat("[HG ENTITY TRANSFER MODULE]: Incoming attachement {0} for HG user {1} with asset server {2}", so.Name, so.AttachedAvatar, url);
+                    Dictionary<UUID, AssetType> ids = new Dictionary<UUID, AssetType>();
+                    HGUuidGatherer uuidGatherer = new HGUuidGatherer(so.Scene.AssetService, url);
+                    uuidGatherer.GatherAssetUuids(so, ids);
+
+                    foreach (KeyValuePair<UUID, AssetType> kvp in ids)
+                        uuidGatherer.FetchAsset(kvp.Key);
+                }
+            }
         }
 
         protected override void OnNewClient(IClientAPI client)
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index 383604d..28cd09f 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -377,6 +377,8 @@ namespace OpenSim.Region.Framework.Scenes
             : base(assetService)
         {
             m_assetServerURL = assetServerURL;
+            if (!m_assetServerURL.EndsWith("/") && !m_assetServerURL.EndsWith("="))
+                m_assetServerURL = m_assetServerURL + "/";
         }
 
         protected override AssetBase GetAsset(UUID uuid)
@@ -384,22 +386,27 @@ namespace OpenSim.Region.Framework.Scenes
             if (string.Empty == m_assetServerURL)
                 return base.GetAsset(uuid);
             else
-                return FetchAsset(m_assetServerURL, uuid);
+                return FetchAsset(uuid);
         }
 
-        public AssetBase FetchAsset(string url, UUID assetID)
+        public AssetBase FetchAsset(UUID assetID)
         {
-            if (!url.EndsWith("/") && !url.EndsWith("="))
-                url = url + "/";
 
-            AssetBase asset = m_assetService.Get(url + assetID.ToString());
-
-            if (asset != null)
+            // Test if it's already here
+            AssetBase asset = m_assetService.Get(assetID.ToString());
+            if (asset == null)
             {
-                m_log.DebugFormat("[HGUUIDGatherer]: Copied asset {0} from {1} to local asset server. ", asset.ID, url);
-                return asset;
+                // It's not, so fetch it from abroad
+                asset = m_assetService.Get(m_assetServerURL + assetID.ToString());
+                if (asset != null)
+                    m_log.DebugFormat("[HGUUIDGatherer]: Copied asset {0} from {1} to local asset server", assetID, m_assetServerURL);
+                else
+                    m_log.DebugFormat("[HGUUIDGatherer]: Failed to fetch asset {0} from {1}", assetID, m_assetServerURL);
             }
-            return null;
+            //else
+            //    m_log.DebugFormat("[HGUUIDGatherer]: Asset {0} from {1} was already here", assetID, m_assetServerURL);
+
+            return asset;
         }
     }
 }
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