7 files changed, 168 insertions, 20 deletions

diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
index b588704..88ca9db 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/AttachmentsModule.cs
@@ -284,7 +284,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
             sp.ClearAttachments();
         }
         
-        public bool AttachObject(IScenePresence sp, SceneObjectGroup group, uint attachmentPt, bool silent, bool useAttachData)
+        public bool AttachObject(IScenePresence sp, SceneObjectGroup group, uint attachmentPt, bool silent, bool useAttachData, bool temp)
         {
             lock (sp.AttachmentsSyncLock)
             {
@@ -361,7 +361,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 group.AbsolutePosition = attachPos;
 
                 if (sp.PresenceType != PresenceType.Npc)
-                    UpdateUserInventoryWithAttachment(sp, group, attachmentPt);
+                    UpdateUserInventoryWithAttachment(sp, group, attachmentPt, temp);
     
                 AttachToAgent(sp, group, attachmentPt, attachPos, silent);
             }
@@ -369,7 +369,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
             return true;
         }
 
-        private void UpdateUserInventoryWithAttachment(IScenePresence sp, SceneObjectGroup group, uint attachmentPt)
+        private void UpdateUserInventoryWithAttachment(IScenePresence sp, SceneObjectGroup group, uint attachmentPt, bool temp)
         {
             // Remove any previous attachments
             List<SceneObjectGroup> attachments = sp.GetAttachments(attachmentPt);
@@ -379,18 +379,22 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
             {
                 if (attachments[0].FromItemID != UUID.Zero)
                     DetachSingleAttachmentToInvInternal(sp, attachments[0]);
-                else
-                    m_log.WarnFormat(
-                        "[ATTACHMENTS MODULE]: When detaching existing attachment {0} {1} at point {2} to make way for {3} {4} for {5}, couldn't find the associated item ID to adjust inventory attachment record!",
-                        attachments[0].Name, attachments[0].LocalId, attachmentPt, group.Name, group.LocalId, sp.Name);
+            // Error logging commented because UUID.Zero now means temp attachment
+//                else
+//                    m_log.WarnFormat(
+//                        "[ATTACHMENTS MODULE]: When detaching existing attachment {0} {1} at point {2} to make way for {3} {4} for {5}, couldn't find the associated item ID to adjust inventory attachment record!",
+//                        attachments[0].Name, attachments[0].LocalId, attachmentPt, group.Name, group.LocalId, sp.Name);
             }
 
             // Add the new attachment to inventory if we don't already have it.
-            UUID newAttachmentItemID = group.FromItemID;
-            if (newAttachmentItemID == UUID.Zero)
-                newAttachmentItemID = AddSceneObjectAsNewAttachmentInInv(sp, group).ID;
+            if (!temp)
+            {
+                UUID newAttachmentItemID = group.FromItemID;
+                if (newAttachmentItemID == UUID.Zero)
+                    newAttachmentItemID = AddSceneObjectAsNewAttachmentInInv(sp, group).ID;
 
-            ShowAttachInUserInventory(sp, attachmentPt, newAttachmentItemID, group);
+                ShowAttachInUserInventory(sp, attachmentPt, newAttachmentItemID, group);
+            }
         }
 
         public ISceneEntity RezSingleAttachmentFromInventory(IScenePresence sp, UUID itemID, uint AttachmentPt)
@@ -474,6 +478,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
             UUID inventoryID = so.FromItemID;
 
+            // As per Linden spec, drop is disabled for temp attachs
+            if (inventoryID == UUID.Zero)
+                return;
+
 //            m_log.DebugFormat(
 //                "[ATTACHMENTS MODULE]: In DetachSingleAttachmentToGround(), object is {0} {1}, associated item is {2}",
 //                so.Name, so.LocalId, inventoryID);
@@ -484,7 +492,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                     so.PrimCount, sp.UUID, sp.AbsolutePosition))
                     return;
 
-                bool changed = sp.Appearance.DetachAttachment(inventoryID);
+                bool changed = false;
+                if (inventoryID != UUID.Zero)
+                    changed = sp.Appearance.DetachAttachment(inventoryID);
                 if (changed && m_scene.AvatarFactory != null)
                     m_scene.AvatarFactory.QueueAppearanceSave(sp.UUID);
 
@@ -516,6 +526,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
 
         public void DetachSingleAttachmentToInv(IScenePresence sp, SceneObjectGroup so)
         {
+            // As per Linden spec, detach (take) is disabled for temp attachs
+            if (so.FromItemID == UUID.Zero)
+                return;
+
             lock (sp.AttachmentsSyncLock)
             {
                 // Save avatar attachment information
@@ -589,6 +603,13 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
         /// <param name="saveAllScripted"></param>
         private void UpdateKnownItem(IScenePresence sp, SceneObjectGroup grp, string scriptedState)
         {
+            if (grp.FromItemID == UUID.Zero)
+            {
+                // We can't save temp attachments
+                grp.HasGroupChanged = false;
+                return;
+            }
+
             // Saving attachments for NPCs messes them up for the real owner!
             INPCModule module = m_scene.RequestModuleInterface<INPCModule>();
             if (module != null)
@@ -845,7 +866,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                     // This will throw if the attachment fails
                     try
                     {
-                        AttachObject(sp, objatt, attachmentPt, false, false);
+                        AttachObject(sp, objatt, attachmentPt, false, false, false);
                     }
                     catch (Exception e)
                     {
@@ -1005,7 +1026,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments
                 AttachmentPt &= 0x7f;
 
                 // Calls attach with a Zero position
-                if (AttachObject(sp, part.ParentGroup, AttachmentPt, false, true))
+                if (AttachObject(sp, part.ParentGroup, AttachmentPt, false, true, false))
                 {
 //                    m_log.Debug(
 //                        "[ATTACHMENTS MODULE]: Saving avatar attachment. AgentID: " + remoteClient.AgentId
diff --git a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
index 273e290..d9a619d 100644
--- a/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Attachments/Tests/AttachmentsModuleTests.cs
@@ -189,7 +189,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
 
             SceneObjectGroup so = SceneHelpers.AddSceneObject(scene, attName, sp.UUID);
 
-            scene.AttachmentsModule.AttachObject(sp, so, (uint)AttachmentPoint.Chest, false, false);
+            scene.AttachmentsModule.AttachObject(sp, so, (uint)AttachmentPoint.Chest, false, false, false);
 
             // Check status on scene presence
             Assert.That(sp.HasAttachments(), Is.True);
@@ -243,7 +243,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Attachments.Tests
             sp2.AbsolutePosition = new Vector3(0, 0, 0);
             sp2.HandleAgentRequestSit(sp2.ControllingClient, sp2.UUID, so.UUID, Vector3.Zero);
 
-            scene.AttachmentsModule.AttachObject(sp, so, (uint)AttachmentPoint.Chest, false, false);
+            scene.AttachmentsModule.AttachObject(sp, so, (uint)AttachmentPoint.Chest, false, false, false);
 
             Assert.That(sp.HasAttachments(), Is.False);
             Assert.That(scene.GetSceneObjectGroups().Count, Is.EqualTo(1));
diff --git a/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs b/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
index 11a13e1..90a13a7 100644
--- a/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IAttachmentsModule.cs
@@ -84,7 +84,7 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <param name="AttachmentPt"></param>
         /// <param name="silent"></param>
         /// <returns>true if the object was successfully attached, false otherwise</returns>
-        bool AttachObject(IScenePresence sp, SceneObjectGroup grp, uint AttachmentPt, bool silent, bool useAttachmentInfo);
+        bool AttachObject(IScenePresence sp, SceneObjectGroup grp, uint AttachmentPt, bool silent, bool useAttachmentInfo, bool temp);
 
         /// <summary>
         /// Rez an attachment from user inventory and change inventory status to match.
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index a8594e4..a29b4fd 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -2755,7 +2755,7 @@ namespace OpenSim.Region.Framework.Scenes
                     RootPrim.RemFlag(PrimFlags.TemporaryOnRez);
                     
                     if (AttachmentsModule != null)
-                        AttachmentsModule.AttachObject(sp, grp, 0, false, false);
+                        AttachmentsModule.AttachObject(sp, grp, 0, false, false, false);
                 }
                 else
                 {
diff --git a/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs b/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs
new file mode 100644
index 0000000..b166588
--- /dev/null
+++ b/OpenSim/Region/OptionalModules/Avatar/Attachments/TempAttachmentsModule.cs
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using log4net;
+using Mono.Addins;
+using Nini.Config;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
+using OpenSim.Framework.Monitoring;
+using OpenSim.Region.ClientStack.LindenUDP;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.OptionalModules.Avatar.Attachments
+{
+    /// <summary>
+    /// A module that just holds commands for inspecting avatar appearance.
+    /// </summary>
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "TempAttachmentsModule")]
+    public class TempAttachmentsModule : INonSharedRegionModule
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Scene m_scene;
+
+        public void Initialise(IConfigSource configSource)
+        {
+        }
+
+        public void AddRegion(Scene scene)
+        {
+            m_scene = scene;
+
+            IScriptModuleComms comms = scene.RequestModuleInterface<IScriptModuleComms>();
+            if (comms != null)
+            {
+                comms.RegisterScriptInvocation( this, "llAttachToAvatarTemp");
+                m_log.DebugFormat("[TEMP ATTACHS]: Registered script functions");
+            }
+            else
+            {
+                m_log.ErrorFormat("[TEMP ATTACHS]: Failed to register script functions");
+            }
+        }
+
+        public void RemoveRegion(Scene scene)
+        {
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+        }
+
+        public void Close()
+        {
+        }
+
+        public Type ReplaceableInterface
+        {
+            get { return null; }
+        }
+
+        public string Name
+        {
+            get { return "TempAttachmentsModule"; }
+        }
+
+        private void llAttachToAvatarTemp(UUID host, UUID script, int attachmentPoint)
+        {
+            SceneObjectPart hostPart = m_scene.GetSceneObjectPart(host);
+
+            if (hostPart == null)
+                return;
+
+            if (hostPart.ParentGroup.IsAttachment)
+                return;
+
+            IAttachmentsModule attachmentsModule = m_scene.RequestModuleInterface<IAttachmentsModule>();
+            if (attachmentsModule == null)
+                return;
+
+            TaskInventoryItem item = hostPart.Inventory.GetInventoryItem(script);
+            if (item == null)
+                return;
+
+            if ((item.PermsMask & 32) == 0) // PERMISSION_ATTACH
+                return;
+
+            ScenePresence target;
+            if (!m_scene.TryGetScenePresence(item.PermsGranter, out target))
+                return;
+            
+            attachmentsModule.AttachObject(target, hostPart.ParentGroup, (uint)attachmentPoint, false, true, true);
+        }
+    }
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 8cbebbb..54cb214 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -3346,7 +3346,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
 
             if (attachmentsModule != null)
-                return attachmentsModule.AttachObject(presence, grp, (uint)attachmentPoint, false, true);
+                return attachmentsModule.AttachObject(presence, grp, (uint)attachmentPoint, false, true, false);
             else
                 return false;
         }
diff --git a/OpenSim/Services/Interfaces/IAvatarService.cs b/OpenSim/Services/Interfaces/IAvatarService.cs
index 8412c35..0caa521 100644
--- a/OpenSim/Services/Interfaces/IAvatarService.cs
+++ b/OpenSim/Services/Interfaces/IAvatarService.cs
@@ -182,7 +182,8 @@ namespace OpenSim.Services.Interfaces
             List<AvatarAttachment> attachments = appearance.GetAttachments();
             foreach (AvatarAttachment attach in attachments)
             {
-                Data["_ap_" + attach.AttachPoint] = attach.ItemID.ToString();
+                if (attach.ItemID != UUID.Zero)
+                    Data["_ap_" + attach.AttachPoint] = attach.ItemID.ToString();
             }
         }