Fix recent regression from 77e7bbc where an attachment on a received group notice with XmlRpcGroups messaging did not appear in the user's inventory.

This was because the "session ID" when the message template was copied was always replaced with the group ID, whereas a notice requires this to be the notice ID.
Instead just copy the "session ID" as is - other callers already have this set properly so replacing with group ID was redundant anyway.
Relates to http://opensimulator.org/mantis/view.php?id=7037

OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs

@@ -315,7 +315,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
                 // Copy Message
                 GridInstantMessage msg = new GridInstantMessage();
-                msg.imSessionID = groupID.Guid;
+                msg.imSessionID = im.imSessionID;
                 msg.fromAgentName = im.fromAgentName;
                 msg.message = im.message;
                 msg.dialog = im.dialog;
@@ -420,7 +420,10 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
         private void ProcessMessageFromGroupSession(GridInstantMessage msg, IClientAPI client)
         {
-            if (m_debugEnabled) m_log.DebugFormat("[GROUPS-MESSAGING]: Session message from {0} going to agent {1}", msg.fromAgentName, msg.toAgentID);
+            if (m_debugEnabled) 
+                m_log.DebugFormat(
+                    "[GROUPS-MESSAGING]: Session message from {0} going to agent {1}, sessionID {2}, type {3}",
+                    msg.fromAgentName, msg.toAgentID, msg.imSessionID, (InstantMessageDialog)msg.dialog);
 
             UUID AgentID = new UUID(msg.fromAgentID);
             UUID GroupID = new UUID(msg.imSessionID);

OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs

@@ -357,7 +357,10 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
         private void OnInstantMessage(IClientAPI remoteClient, GridInstantMessage im)
         {
-            if (m_debugEnabled) m_log.DebugFormat("[GROUPS]: {0} called", System.Reflection.MethodBase.GetCurrentMethod().Name);
+            if (m_debugEnabled) 
+                m_log.DebugFormat(
+                    "[GROUPS]: {0} called for {1}, message type {2}", 
+                    System.Reflection.MethodBase.GetCurrentMethod().Name, remoteClient.Name, (InstantMessageDialog)im.dialog);
 
             // Group invitations
             if ((im.dialog == (byte)InstantMessageDialog.GroupInvitationAccept) || (im.dialog == (byte)InstantMessageDialog.GroupInvitationDecline))
@@ -551,6 +554,9 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
                 UUID noticeID = new UUID(im.imSessionID);
 
+                if (m_debugEnabled) 
+                    m_log.DebugFormat("[GROUPS]: Requesting notice {0} for {1}", noticeID, remoteClient.AgentId);
+
                 GroupNoticeInfo notice = m_groupData.GetGroupNotice(GetRequestingAgentID(remoteClient), noticeID);
                 if (notice != null)
                 {
@@ -572,6 +578,13 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 
                     remoteClient.SendInventoryItemCreateUpdate(itemCopy, 0);
                 }
+                else
+                {
+                    if (m_debugEnabled) 
+                        m_log.DebugFormat(
+                            "[GROUPS]: Could not find notice {0} for {1} on GroupNoticeInventoryAccepted.", 
+                            noticeID, remoteClient.AgentId);                   
+                }
             }
 
             // Interop, received special 210 code for ejecting a group member

OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/Tests/GroupsModuleTests.cs

@@ -132,6 +132,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups.Tests
             MessageTransferModule mtm = new MessageTransferModule();
             GroupsModule gm = new GroupsModule();
             GroupsMessagingModule gmm = new GroupsMessagingModule();
+            MockGroupsServicesConnector mgsc = new MockGroupsServicesConnector();
 
             IConfigSource configSource = new IniConfigSource();
 
@@ -149,7 +150,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups.Tests
                 config.Set("MessagingEnabled", true);
             }
 
-            SceneHelpers.SetupSceneModules(scene, configSource, new MockGroupsServicesConnector(), mtm, gm, gmm);
+            SceneHelpers.SetupSceneModules(scene, configSource, mgsc, mtm, gm, gmm);
 
             UUID userId = TestHelpers.ParseTail(0x1);
             string subjectText = "newman";
@@ -185,6 +186,12 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups.Tests
             Assert.That(spReceivedMessages.Count, Is.EqualTo(1));
             Assert.That(spReceivedMessages[0].message, Is.EqualTo(combinedSubjectMessage));
 
+            List<GroupNoticeData> notices = mgsc.GetGroupNotices(UUID.Zero, groupID);
+            Assert.AreEqual(1, notices.Count);
+
+            // OpenSimulator (possibly also SL) transport the notice ID as the session ID!
+            Assert.AreEqual(notices[0].NoticeID.Guid, spReceivedMessages[0].imSessionID);
+
             Assert.That(sp2ReceivedMessages.Count, Is.EqualTo(0));
         }
 

OpenSim/Tests/Common/Mock/MockGroupsServicesConnector.cs

@@ -324,7 +324,29 @@ namespace OpenSim.Tests.Common.Mock
 
         public List<GroupNoticeData> GetGroupNotices(UUID requestingAgentID, UUID groupID)
         {
-            return null;
+            XGroup group = GetXGroup(groupID, null);
+
+            if (group == null)
+                return null;
+
+            List<GroupNoticeData> notices = new List<GroupNoticeData>();
+
+            foreach (XGroupNotice notice in group.notices.Values)
+            {
+                GroupNoticeData gnd = new GroupNoticeData()
+                {
+                    NoticeID = notice.noticeID,
+                    Timestamp = notice.timestamp,
+                    FromName = notice.fromName,
+                    Subject = notice.subject,
+                    HasAttachment = notice.hasAttachment,
+                    AssetType = (byte)notice.assetType
+                };
+
+                notices.Add(gnd);
+            }
+
+            return notices;
         }
         
         public GroupNoticeInfo GetGroupNotice(UUID requestingAgentID, UUID noticeID)