17 files changed, 587 insertions, 48 deletions

diff --git a/OpenSim/Framework/Communications/CommunicationsManager.cs b/OpenSim/Framework/Communications/CommunicationsManager.cs
index 02c54e1..0c6d53f 100644
--- a/OpenSim/Framework/Communications/CommunicationsManager.cs
+++ b/OpenSim/Framework/Communications/CommunicationsManager.cs
@@ -152,6 +152,49 @@ namespace OpenSim.Framework.Communications
             }
         }
 
+        #region Friend Methods
+        /// <summary>
+        /// Adds a new friend to the database for XUser
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being added to</param>
+        /// <param name="friend">The agent that being added to the friends list of the friends list owner</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        public void AddNewUserFriend(LLUUID friendlistowner, LLUUID friend, uint perms)
+        {
+            m_userService.AddNewUserFriend(friendlistowner, friend, perms);
+        }
+
+        /// <summary>
+        /// Delete friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The Ex-friend agent</param>
+        public void RemoveUserFriend(LLUUID friendlistowner, LLUUID friend)
+        {
+            m_userService.RemoveUserFriend(friendlistowner, friend);
+        }
+
+        /// <summary>
+        /// Update permissions for friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The agent that is getting or loosing permissions</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        public void UpdateUserFriendPerms(LLUUID friendlistowner, LLUUID friend, uint perms)
+        {
+            m_userService.UpdateUserFriendPerms(friendlistowner, friend, perms);
+        }
+        /// <summary>
+        /// Returns a list of FriendsListItems that describe the friends and permissions in the friend relationship for LLUUID friendslistowner
+        /// </summary>
+        /// <param name="friendlistowner">The agent that we're retreiving the friends Data.</param>
+        public List<FriendListItem> GetUserFriendList(LLUUID friendlistowner)
+        {
+            return m_userService.GetUserFriendList(friendlistowner);
+        }
+
+        #endregion
+
         #region Packet Handlers
 
         public void HandleUUIDNameRequest(LLUUID uuid, IClientAPI remote_client)
diff --git a/OpenSim/Framework/Data.MySQL/MySQLUserData.cs b/OpenSim/Framework/Data.MySQL/MySQLUserData.cs
index 779d050..a5e6da4 100644
--- a/OpenSim/Framework/Data.MySQL/MySQLUserData.cs
+++ b/OpenSim/Framework/Data.MySQL/MySQLUserData.cs
@@ -226,6 +226,13 @@ namespace OpenSim.Framework.Data.MySQL
                             param);
                     updater.ExecuteNonQuery();
 
+                    updater =
+                        database.Query(
+                        "delete from userfriends " +
+                        "where ownerID = ?friendID and friendID = ?ownerID",
+                            param);
+                    updater.ExecuteNonQuery();
+
                 }
             }
             catch (Exception e)
diff --git a/OpenSim/Framework/Data.SQLite/SQLiteUserData.cs b/OpenSim/Framework/Data.SQLite/SQLiteUserData.cs
index c97dc52..e9a8eca 100644
--- a/OpenSim/Framework/Data.SQLite/SQLiteUserData.cs
+++ b/OpenSim/Framework/Data.SQLite/SQLiteUserData.cs
@@ -47,16 +47,20 @@ namespace OpenSim.Framework.Data.SQLite
         /// </summary>
         private const string userSelect = "select * from users";
         private const string userFriendsSelect = "select a.ownerID as ownerID,a.friendID as friendID,a.friendPerms as friendPerms,b.friendPerms as ownerperms, b.ownerID as fownerID, b.friendID as ffriendID from userfriends as a, userfriends as b";
-
+        
         private DataSet ds;
         private SqliteDataAdapter da;
         private SqliteDataAdapter daf;
+        SqliteConnection g_conn; 
 
         public void Initialise()
         {
             SqliteConnection conn = new SqliteConnection("URI=file:userprofiles.db,version=3");
             TestTables(conn);
 
+            // This sucks, but It doesn't seem to work with the dataset Syncing :P
+            g_conn = conn;
+            
             ds = new DataSet();
             da = new SqliteDataAdapter(new SqliteCommand(userSelect, conn));
             daf = new SqliteDataAdapter(new SqliteCommand(userFriendsSelect, conn));
@@ -147,11 +151,11 @@ namespace OpenSim.Framework.Data.SQLite
                
                 
                 DataRow row = friends.NewRow();
-                fillFriendRow(row, friendlistowner,friend,perms);
+                fillFriendRow(row, friendlistowner.UUID.ToString(),friend.UUID.ToString(),perms);
                 friends.Rows.Add(row);
 
                 row = friends.NewRow();
-                fillFriendRow(row, friend, friendlistowner, perms);
+                fillFriendRow(row, friend.UUID.ToString(), friendlistowner.UUID.ToString(), perms);
                 friends.Rows.Add(row);
 
                 MainLog.Instance.Verbose("SQLITE",
@@ -164,7 +168,7 @@ namespace OpenSim.Framework.Data.SQLite
         public void RemoveUserFriend(LLUUID friendlistowner, LLUUID friend)
         {
             DataTable ua = ds.Tables["userfriends"];
-            string select = "a.ownernID '" + friendlistowner.UUID.ToString() + "' and b.friendID ='" + friend.UUID.ToString() + "';";
+            string select = "`ownerID` ='" + friendlistowner.UUID.ToString() + "' and `friendID` ='" + friend.UUID.ToString() + "'";
             lock (ds)
             {
                 DataRow[] rows = ds.Tables["userfriends"].Select(select);
@@ -175,20 +179,44 @@ namespace OpenSim.Framework.Data.SQLite
                     {
                         for (int i = 0; i < rows.Length; i++)
                         {
-                            FriendListItem user = new FriendListItem();
                             DataRow row = rows[i];
                             row.Delete();
                         }
-                        daf.Update(ds, "userfriends");
+                        
+                    }
+                }
+            }
+            select = "`ownerID` ='" + friend.UUID.ToString() + "' and `friendID` ='" + friendlistowner.UUID.ToString() + "'";
+            lock (ds)
+            {
+                DataRow[] rows = ds.Tables["userfriends"].Select(select);
+
+                if (rows != null)
+                {
+                    if (rows.Length > 0)
+                    {
+                        for (int i = 0; i < rows.Length; i++)
+                        {
+                            DataRow row = rows[i];
+                            row.Delete();
+                        }
+
                     }
                 }
             }
+            SqliteCommand deletecommand = new SqliteCommand("delete from userfriends where `ownerID`='" + friendlistowner.UUID.ToString() + "' and `friendID` ='" + friend.UUID.ToString() + "'", g_conn);
+            g_conn.Open();
+            deletecommand.ExecuteNonQuery();
+            deletecommand = new SqliteCommand("delete from userfriends where `ownerID`='" + friend.UUID.ToString() + "' and `friendID` ='" + friendlistowner.UUID.ToString() + "'", g_conn);
+            deletecommand.ExecuteNonQuery();
+            g_conn.Close();
+
             MainLog.Instance.Verbose("FRIEND", "Stub RemoveUserFriend called");
         }
         public void UpdateUserFriendPerms(LLUUID friendlistowner, LLUUID friend, uint perms)
         {
             DataTable ua = ds.Tables["userfriends"];
-            string select = "a.ownernID '" + friendlistowner.UUID.ToString() + "' and b.friendID ='" + friend.UUID.ToString() + "';";
+            string select = "a.ownerID ='" + friendlistowner.UUID.ToString() + "' and b.friendID ='" + friend.UUID.ToString() + "'";
             lock (ds)
             {
                 DataRow[] rows = ds.Tables["userfriends"].Select(select);
@@ -737,7 +765,7 @@ namespace OpenSim.Framework.Data.SQLite
             daf.UpdateCommand = createUpdateCommand("userfriends", "ownerID=:ownerID and friendID=:friendID", ds.Tables["userfriends"]);
             daf.UpdateCommand.Connection = conn;
 
-            SqliteCommand delete = new SqliteCommand("delete from users where ownerID=:ownerID and friendID=:friendID");
+            SqliteCommand delete = new SqliteCommand("delete from userfriends where ownerID=:ownerID and friendID=:friendID");
             delete.Parameters.Add(createSqliteParameter("ownerID", typeof(String)));
             delete.Parameters.Add(createSqliteParameter("friendID", typeof(String)));
             delete.Connection = conn;
diff --git a/OpenSim/Framework/GridInstantMessage.cs b/OpenSim/Framework/GridInstantMessage.cs
new file mode 100644
index 0000000..6ae3424
--- /dev/null
+++ b/OpenSim/Framework/GridInstantMessage.cs
@@ -0,0 +1,64 @@
+/*
+* 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 OpenSim 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 OpenSim.Framework;
+
+
+namespace OpenSim.Framework
+{
+   
+    [Serializable]
+    public class GridInstantMessage
+    {
+        public Guid fromAgentID;
+        public Guid fromAgentSession;
+        public Guid toAgentID;
+        public Guid imSessionID;
+        public uint timestamp;
+        public string fromAgentName;
+
+        public string message;
+        public byte dialog;
+        public bool fromGroup;
+        public byte offline;
+
+        public uint ParentEstateID;
+
+        public sLLVector3 Position;
+
+        public Guid RegionID;
+
+        public byte[] binaryBucket;
+
+        public GridInstantMessage()
+        {
+    
+        }       
+    }
+}
diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index 61a713a..c5e4809 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -395,6 +395,14 @@ namespace OpenSim.Framework
 
     public delegate void ConfirmXfer(IClientAPI remoteClient, ulong xferID, uint packetID);
 
+    public delegate void FriendActionDelegate(IClientAPI remoteClient,LLUUID agentID,LLUUID transactionID,List<LLUUID> callingCardFolders);
+    
+    public delegate void FriendshipTermination(IClientAPI remoteClient,LLUUID agentID, LLUUID ExID);
+    
+   
+
+    
+
     public delegate void ObjectPermissions(
         IClientAPI remoteClinet, LLUUID AgentID, LLUUID SessionID,
         List<ObjectPermissionsPacket.ObjectDataBlock> permChanges);
@@ -490,6 +498,11 @@ namespace OpenSim.Framework
         event RegionInfoRequest OnRegionInfoRequest;
         event EstateCovenantRequest OnEstateCovenantRequest;
 
+        event FriendActionDelegate OnApproveFriendRequest;
+        event FriendActionDelegate OnDenyFriendRequest;
+        event FriendshipTermination OnTerminateFriendship;
+
+         
         LLVector3 StartPos { get; set; }
 
         LLUUID AgentId { get; }
diff --git a/OpenSim/Framework/IUserService.cs b/OpenSim/Framework/IUserService.cs
index 2b08582..2b59c25 100644
--- a/OpenSim/Framework/IUserService.cs
+++ b/OpenSim/Framework/IUserService.cs
@@ -47,5 +47,35 @@ namespace OpenSim.Framework
         /// </summary>
         /// <param name="user"></param>
         LLUUID AddUserProfile(string firstName, string lastName, string pass, uint regX, uint regY);
+
+
+        /// <summary>
+        /// Adds a new friend to the database for XUser
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being added to</param>
+        /// <param name="friend">The agent that being added to the friends list of the friends list owner</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        void AddNewUserFriend(LLUUID friendlistowner, LLUUID friend, uint perms);
+
+        /// <summary>
+        /// Delete friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The Ex-friend agent</param>
+        void RemoveUserFriend(LLUUID friendlistowner, LLUUID friend);
+
+        /// <summary>
+        /// Update permissions for friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The agent that is getting or loosing permissions</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        void UpdateUserFriendPerms(LLUUID friendlistowner, LLUUID friend, uint perms);
+
+        /// <summary>
+        /// Returns a list of FriendsListItems that describe the friends and permissions in the friend relationship for LLUUID friendslistowner
+        /// </summary>
+        /// <param name="friendlistowner">The agent that we're retreiving the friends Data.</param>
+        List<FriendListItem> GetUserFriendList(LLUUID friendlistowner);
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Framework/sLLVector3.cs b/OpenSim/Framework/sLLVector3.cs
index 2e2c005..8187597 100644
--- a/OpenSim/Framework/sLLVector3.cs
+++ b/OpenSim/Framework/sLLVector3.cs
@@ -45,8 +45,8 @@ namespace OpenSim.Framework
             z = v.Z;
         }
 
-        public float x;
-        public float y;
-        public float z;
+        public float x=0;
+        public float y=0;
+        public float z=0;
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/ClientStack/ClientView.cs b/OpenSim/Region/ClientStack/ClientView.cs
index 8bf807c..aa8ab1d 100644
--- a/OpenSim/Region/ClientStack/ClientView.cs
+++ b/OpenSim/Region/ClientStack/ClientView.cs
@@ -551,6 +551,10 @@ namespace OpenSim.Region.ClientStack
         public event RegionInfoRequest OnRegionInfoRequest;
         public event EstateCovenantRequest OnEstateCovenantRequest;
 
+        public event FriendActionDelegate OnApproveFriendRequest;
+        public event FriendActionDelegate OnDenyFriendRequest;
+        public event FriendshipTermination OnTerminateFriendship;
+
         #region Scene/Avatar to Client
 
         /// <summary>
@@ -2555,6 +2559,39 @@ namespace OpenSim.Region.ClientStack
                                              msgpack.MessageBlock.BinaryBucket);
                         }
                         break;
+
+                    case PacketType.AcceptFriendship:
+                        AcceptFriendshipPacket afriendpack = (AcceptFriendshipPacket)Pack;
+
+                        // My guess is this is the folder to stick the calling card into
+                        List<LLUUID> callingCardFolders = new List<LLUUID>();
+                        
+                        LLUUID agentID = afriendpack.AgentData.AgentID;
+                        LLUUID transactionID = afriendpack.TransactionBlock.TransactionID;
+
+                        for (int fi = 0; fi < afriendpack.FolderData.Length; fi++)
+                        {
+                            callingCardFolders.Add(afriendpack.FolderData[fi].FolderID);
+                        }
+
+                        if (OnApproveFriendRequest != null)
+                        {
+                            OnApproveFriendRequest(this, agentID, transactionID, callingCardFolders);
+                        }
+
+
+                        break;
+                    case PacketType.TerminateFriendship:
+                        TerminateFriendshipPacket tfriendpack = (TerminateFriendshipPacket)Pack;
+                        LLUUID listOwnerAgentID = tfriendpack.AgentData.AgentID;
+                        LLUUID exFriendID = tfriendpack.ExBlock.OtherID;
+
+                        if (OnTerminateFriendship != null)
+                        {
+                            OnTerminateFriendship(this, listOwnerAgentID, exFriendID);
+                        }
+
+                        break;
                     case PacketType.RezObject:
                         RezObjectPacket rezPacket = (RezObjectPacket) Pack;
                         if (OnRezObject != null)
diff --git a/OpenSim/Region/Communications/Local/LocalLoginService.cs b/OpenSim/Region/Communications/Local/LocalLoginService.cs
index 0fb86af..2c92491 100644
--- a/OpenSim/Region/Communications/Local/LocalLoginService.cs
+++ b/OpenSim/Region/Communications/Local/LocalLoginService.cs
@@ -138,8 +138,8 @@ namespace OpenSim.Region.Communications.Local
                 theUser.currentAgent.currentHandle = reg.RegionHandle;
 
                 LoginResponse.BuddyList buddyList = new LoginResponse.BuddyList();
-                buddyList.AddNewBuddy(new LoginResponse.BuddyList.BuddyInfo("11111111-1111-0000-0000-000100bba000"));
-                response.BuddList = buddyList;
+
+                response.BuddList = ConvertFriendListItem(m_userManager.GetUserFriendList(theUser.UUID)); 
 
                 Login _login = new Login();
                 //copy data to login object
@@ -162,7 +162,20 @@ namespace OpenSim.Region.Communications.Local
                 MainLog.Instance.Warn("LOGIN", "Not found region " + currentRegion);
             }
         }
+        private LoginResponse.BuddyList ConvertFriendListItem(List<FriendListItem> LFL)
+        {
+            LoginResponse.BuddyList buddylistreturn = new LoginResponse.BuddyList();
+            foreach (FriendListItem fl in LFL)
+            {
+                LoginResponse.BuddyList.BuddyInfo buddyitem = new LoginResponse.BuddyList.BuddyInfo(fl.Friend);
+                buddyitem.BuddyID = fl.Friend;
+                buddyitem.BuddyRightsHave = (int)fl.FriendListOwnerPerms;
+                buddyitem.BuddyRightsGiven = (int)fl.FriendPerms;
+                buddylistreturn.AddNewBuddy(buddyitem);
 
+            }
+            return buddylistreturn;
+        }
         protected override InventoryData CreateInventoryData(LLUUID userID)
         {
             List<InventoryFolderBase> folders = m_Parent.InventoryService.RequestFirstLevelFolders(userID);
@@ -207,6 +220,7 @@ namespace OpenSim.Region.Communications.Local
 
                 return new InventoryData(AgentInventoryArray, userInventory.InventoryRoot.FolderID);
             }
+            
         }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs b/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
index 3a2e138..c205d08 100644
--- a/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
+++ b/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
@@ -213,5 +213,48 @@ namespace OpenSim.Region.Communications.OGS1
         {
             throw new Exception("The method or operation is not implemented.");
         }
+
+        #region IUserServices Friend Methods
+        /// <summary>
+        /// Adds a new friend to the database for XUser
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being added to</param>
+        /// <param name="friend">The agent that being added to the friends list of the friends list owner</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        public void AddNewUserFriend(LLUUID friendlistowner, LLUUID friend, uint perms)
+        {
+
+        }
+
+        /// <summary>
+        /// Delete friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The Ex-friend agent</param>
+        public void RemoveUserFriend(LLUUID friendlistowner, LLUUID friend)
+        {
+
+        }
+
+        /// <summary>
+        /// Update permissions for friend on friendlistowner's friendlist.
+        /// </summary>
+        /// <param name="friendlistowner">The agent that who's friends list is being updated</param>
+        /// <param name="friend">The agent that is getting or loosing permissions</param>
+        /// <param name="perms">A uint bit vector for set perms that the friend being added has; 0 = none, 1=This friend can see when they sign on, 2 = map, 4 edit objects </param>
+        public void UpdateUserFriendPerms(LLUUID friendlistowner, LLUUID friend, uint perms)
+        {
+
+        }
+        /// <summary>
+        /// Returns a list of FriendsListItems that describe the friends and permissions in the friend relationship for LLUUID friendslistowner
+        /// </summary>
+        /// <param name="friendlistowner">The agent that we're retreiving the friends Data.</param>
+        public List<FriendListItem> GetUserFriendList(LLUUID friendlistowner)
+        {
+            return new List<FriendListItem>();
+        }
+
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Environment/InstantMessageReceiver.cs b/OpenSim/Region/Environment/InstantMessageReceiver.cs
new file mode 100644
index 0000000..ecda399
--- /dev/null
+++ b/OpenSim/Region/Environment/InstantMessageReceiver.cs
@@ -0,0 +1,28 @@
+using System;
+
+namespace OpenSim.Region.Environment
+{
+    /// <summary>
+    /// Bit Vector for Which Modules to send an instant message to from the Scene or an Associated Module
+    /// </summary>
+    
+    // This prevents the Modules from sending Instant messages to other modules through the scene
+    // and then receiving the same messages
+
+    // This is mostly here because on LLSL and the SecondLife Client, IMs,Groups and friends are linked 
+    // inseparably
+
+    [Flags]
+    public enum InstantMessageReceiver : uint
+    {
+        /// <summary>None of them..   here for posterity and amusement</summary>
+        None = 0,
+        /// <summary>The IM Module</summary>
+        IMModule = 0x00000001,
+        /// <summary>The Friends Module</summary>
+        FriendsModule = 0x00000002,
+        /// <summary>The Groups Module</summary>
+        GroupsModule = 0x00000004
+
+    }
+}
diff --git a/OpenSim/Region/Environment/Modules/FriendsModule.cs b/OpenSim/Region/Environment/Modules/FriendsModule.cs
index ee78f15..d6be63b 100644
--- a/OpenSim/Region/Environment/Modules/FriendsModule.cs
+++ b/OpenSim/Region/Environment/Modules/FriendsModule.cs
@@ -35,53 +35,180 @@ using OpenSim.Framework.Console;
 using OpenSim.Region.Environment.Interfaces;
 using OpenSim.Region.Environment.Scenes;
 using libsecondlife;
-using libsecondlife.Packets;
 
 namespace OpenSim.Region.Environment.Modules
 {
     public class FriendsModule : IRegionModule
     {
-        private List<Scene> m_scenes = new List<Scene>();
+
         private LogBase m_log;
 
+        private Scene m_scene;
+
+        Dictionary<LLUUID, LLUUID> m_pendingFriendRequests = new Dictionary<LLUUID, LLUUID>();
+
         public void Initialise(Scene scene, IConfigSource config)
         {
             m_log = MainLog.Instance;
-            if (!m_scenes.Contains(scene))
-            {
-                m_scenes.Add(scene);
-                scene.EventManager.OnNewClient += OnNewClient;
-            }
+            m_scene = scene;
+            scene.EventManager.OnNewClient += OnNewClient;
+            scene.EventManager.OnGridInstantMessageToFriendsModule += OnGridInstantMessage;
         }
 
         private void OnNewClient(IClientAPI client)
         {
-            //FormFriendship(client,new Guid("c43a67ab-b196-4d62-936c-b40369547dee"));
-            //FormFriendship(client, new Guid("0a2f777b-f44c-4662-8b22-c90ae038a3e6"));
-        }
+            // All friends establishment protocol goes over instant message
+            // There's no way to send a message from the sim 
+            // to a user to 'add a friend' without causing dialog box spam
+            // 
+            // The base set of friends are added when the user signs on in their XMLRPC response
+            // Generated by LoginService.  The friends are retreived from the database by the UserManager
 
-        public void PostInitialise()
+            // Subscribe to instant messages
+            client.OnInstantMessage += OnInstantMessage;
+            client.OnApproveFriendRequest += OnApprovedFriendRequest;
+            client.OnDenyFriendRequest += OnDenyFriendRequest;
+            client.OnTerminateFriendship += OnTerminateFriendship;
+
+            
+        }
+        private void OnInstantMessage(LLUUID fromAgentID,
+                                      LLUUID fromAgentSession, LLUUID toAgentID,
+                                      LLUUID imSessionID, uint timestamp, string fromAgentName,
+                                      string message, byte dialog, bool fromGroup, byte offline, 
+                                      uint ParentEstateID, LLVector3 Position, LLUUID RegionID, 
+                                      byte[] binaryBucket)
         {
+            // Friend Requests go by Instant Message..    using the dialog param
+            // https://wiki.secondlife.com/wiki/ImprovedInstantMessage
+
+            // 38 == Offer friendship
+            if (dialog == (byte)38)
+            {
+                LLUUID friendTransactionID = LLUUID.Random();
+
+                m_pendingFriendRequests.Add(friendTransactionID, fromAgentID);
+
+                m_log.Verbose("FRIEND", "38 - From:" + fromAgentID.ToString() + " To: " + toAgentID.ToString() + " Session:" + imSessionID.ToString() + " Message:" + message);
+                GridInstantMessage msg = new GridInstantMessage();
+                msg.fromAgentID = fromAgentID.UUID;
+                msg.fromAgentSession = fromAgentSession.UUID;
+                msg.toAgentID = toAgentID.UUID;
+                msg.imSessionID = friendTransactionID.UUID; // This is the item we're mucking with here
+                m_log.Verbose("FRIEND","Filling Session: " + msg.imSessionID.ToString());
+                msg.timestamp = timestamp;
+                msg.fromAgentName = fromAgentName;
+                msg.message = message;
+                msg.dialog = dialog;
+                msg.fromGroup = fromGroup;
+                msg.offline = offline;
+                msg.ParentEstateID = ParentEstateID;
+                msg.Position = new sLLVector3(Position);
+                msg.RegionID = RegionID.UUID;
+                msg.binaryBucket = binaryBucket;
+                m_scene.TriggerGridInstantMessage(msg, InstantMessageReceiver.IMModule);
+            }
+            if (dialog == (byte)39)
+            {
+                m_log.Verbose("FRIEND", "38 - From:" + fromAgentID.ToString() + " To: " + toAgentID.ToString() + " Session:" + imSessionID.ToString() + " Message:" + message);
+
+            }
+            if (dialog == (byte)40)
+            {
+                m_log.Verbose("FRIEND", "38 - From:" + fromAgentID.ToString() + " To: " + toAgentID.ToString() + " Session:" + imSessionID.ToString() + " Message:" + message);
+            }
+
+            // 39 == Accept Friendship
+
+            // 40 == Decline Friendship
+               
         }
 
-        private void FormFriendship(IClientAPI client, Guid friend)
+        private void OnApprovedFriendRequest(IClientAPI client, LLUUID agentID, LLUUID transactionID, List<LLUUID> callingCardFolders)
         {
-            foreach (Scene scene in m_scenes)
+            if (m_pendingFriendRequests.ContainsKey(transactionID))
             {
-                if (scene.Entities.ContainsKey(client.AgentId) && scene.Entities[client.AgentId] is ScenePresence)
-                {
-                    OnlineNotificationPacket ONPack = new OnlineNotificationPacket();
-                    OnlineNotificationPacket.AgentBlockBlock[] AgentBlock = new OnlineNotificationPacket.AgentBlockBlock[1];
-
-                    AgentBlock[0] = new OnlineNotificationPacket.AgentBlockBlock();
-                    AgentBlock[0].AgentID = new LLUUID(friend);
-                    ONPack.AgentBlock = AgentBlock;
-                    client.OutPacket(ONPack,ThrottleOutPacketType.Task);
-                }
+                // Found Pending Friend Request with that Transaction..    
+
+                // Compose response to other agent.
+                GridInstantMessage msg = new GridInstantMessage();
+                msg.toAgentID = m_pendingFriendRequests[transactionID].UUID;
+                msg.fromAgentID = agentID.UUID;
+                msg.fromAgentName = client.FirstName + " " + client.LastName;
+                msg.fromAgentSession = client.SessionId.UUID;
+                msg.fromGroup = false;
+                msg.imSessionID = transactionID.UUID;
+                msg.message = agentID.UUID.ToString();
+                msg.ParentEstateID = 0;
+                msg.timestamp = (uint)Util.UnixTimeSinceEpoch();
+                msg.RegionID = m_scene.RegionInfo.RegionID.UUID;
+                msg.dialog = (byte)39;// Approved friend request
+                msg.Position = new sLLVector3();
+                msg.offline = (byte)0;
+                msg.binaryBucket = new byte[0];
+                m_scene.TriggerGridInstantMessage(msg, InstantMessageReceiver.IMModule);
+                m_scene.StoreAddFriendship(m_pendingFriendRequests[transactionID], agentID, (uint)1);
+                m_pendingFriendRequests.Remove(transactionID);
+
+                // TODO: Inform agent that the friend is online
             }
+        }
+        private void OnDenyFriendRequest(IClientAPI client, LLUUID agentID, LLUUID transactionID, List<LLUUID> callingCardFolders)
+        {
+            if (m_pendingFriendRequests.ContainsKey(transactionID))
+            {
+                // Found Pending Friend Request with that Transaction..    
+
+                // Compose response to other agent.
+                GridInstantMessage msg = new GridInstantMessage();
+                msg.toAgentID = m_pendingFriendRequests[transactionID].UUID;
+                msg.fromAgentID = agentID.UUID;
+                msg.fromAgentName = client.FirstName + " " + client.LastName;
+                msg.fromAgentSession = client.SessionId.UUID;
+                msg.fromGroup = false;
+                msg.imSessionID = transactionID.UUID;
+                msg.message = agentID.UUID.ToString();
+                msg.ParentEstateID = 0;
+                msg.timestamp = (uint)Util.UnixTimeSinceEpoch();
+                msg.RegionID = m_scene.RegionInfo.RegionID.UUID;
+                msg.dialog = (byte)40;// Deny friend request
+                msg.Position = new sLLVector3();
+                msg.offline = (byte)0;
+                msg.binaryBucket = new byte[0];
+                m_scene.TriggerGridInstantMessage(msg, InstantMessageReceiver.IMModule);
+                m_pendingFriendRequests.Remove(transactionID);
+
+            }
+
+
+        }
+
+        private void OnTerminateFriendship(IClientAPI client, LLUUID agent, LLUUID exfriendID)
+        {
+            m_scene.StoreRemoveFriendship(agent, exfriendID);
+            // TODO: Inform the client that the ExFriend is offline
 
         }
 
+
+        private void OnGridInstantMessage(GridInstantMessage msg)
+        {
+            // Trigger the above event handler
+            OnInstantMessage(new LLUUID(msg.fromAgentID), new LLUUID(msg.fromAgentSession),
+                new LLUUID(msg.toAgentID), new LLUUID(msg.imSessionID), msg.timestamp, msg.fromAgentName,
+                msg.message, msg.dialog, msg.fromGroup, msg.offline, msg.ParentEstateID,
+                new LLVector3(msg.Position.x, msg.Position.y, msg.Position.z), new LLUUID(msg.RegionID),
+                msg.binaryBucket);
+
+        }
+
+
+        public void PostInitialise()
+        {
+        }
+
+        
+
         public void Close()
         {
         }
@@ -93,7 +220,7 @@ namespace OpenSim.Region.Environment.Modules
 
         public bool IsSharedModule
         {
-            get { return true; }
+            get { return false; }
         }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Environment/Modules/InstantMessageModule.cs b/OpenSim/Region/Environment/Modules/InstantMessageModule.cs
index 1e1d236..0967b70 100644
--- a/OpenSim/Region/Environment/Modules/InstantMessageModule.cs
+++ b/OpenSim/Region/Environment/Modules/InstantMessageModule.cs
@@ -52,6 +52,7 @@ namespace OpenSim.Region.Environment.Modules
             {
                 m_scenes.Add(scene);
                 scene.EventManager.OnNewClient += OnNewClient;
+                scene.EventManager.OnGridInstantMessageToIMModule += OnGridInstantMessage;
             }
         }
 
@@ -67,19 +68,29 @@ namespace OpenSim.Region.Environment.Modules
                                       uint ParentEstateID, LLVector3 Position, LLUUID RegionID, 
                                       byte[] binaryBucket)
         {
-            foreach (Scene scene in m_scenes)
+            
+            bool FriendDialog = ((dialog == (byte)38) || (dialog == (byte)39) || (dialog == (byte)40));
+
+            // IM dialogs need to be pre-processed and have their sessionID filled by the server
+            // so the sim can match the transaction on the return packet.
+            
+            // Don't send a Friend Dialog IM with a LLUUID.Zero session.
+            if (!(FriendDialog && imSessionID == LLUUID.Zero))
             {
-                if (scene.Entities.ContainsKey(toAgentID) && scene.Entities[toAgentID] is ScenePresence)
+                foreach (Scene scene in m_scenes)
                 {
-                    // Local message
-                    ScenePresence user = (ScenePresence) scene.Entities[toAgentID];
-                    if (!user.IsChildAgent)
+                    if (scene.Entities.ContainsKey(toAgentID) && scene.Entities[toAgentID] is ScenePresence)
                     {
-                        user.ControllingClient.SendInstantMessage(fromAgentID, fromAgentSession, message,
-                                                                  toAgentID, imSessionID, fromAgentName, dialog,
-                                                                  timestamp);
-                                                // Message sent
-                                                return;
+                        // Local message
+                        ScenePresence user = (ScenePresence)scene.Entities[toAgentID];
+                        if (!user.IsChildAgent)
+                        {
+                            user.ControllingClient.SendInstantMessage(fromAgentID, fromAgentSession, message,
+                                                                      toAgentID, imSessionID, fromAgentName, dialog,
+                                                                      timestamp);
+                            // Message sent
+                            return;
+                        }
                     }
                 }
             }
@@ -87,6 +98,20 @@ namespace OpenSim.Region.Environment.Modules
             // Still here, try send via Grid
             // TODO
         }
+        
+        // Trusty OSG1 called method.  This method also gets called from the FriendsModule
+        // Turns out the sim has to send an instant message to the user to get it to show an accepted friend.
+
+        private void OnGridInstantMessage(GridInstantMessage msg)
+        {
+            // Trigger the above event handler
+            OnInstantMessage(new LLUUID(msg.fromAgentID), new LLUUID(msg.fromAgentSession), 
+                new LLUUID(msg.toAgentID), new LLUUID(msg.imSessionID), msg.timestamp, msg.fromAgentName, 
+                msg.message, msg.dialog, msg.fromGroup, msg.offline, msg.ParentEstateID, 
+                new LLVector3(msg.Position.x,msg.Position.y,msg.Position.z), new LLUUID(msg.RegionID), 
+                msg.binaryBucket);
+
+        }
 
         public void PostInitialise()
         {
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index a0f19bd..ba99640 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -1625,6 +1625,8 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+       
+
         #endregion
 
         #region Other Methods
@@ -1699,6 +1701,45 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+        /// <summary>
+        /// This method is a way for the Friends Module to create an instant 
+        /// message to the avatar and for Instant Messages that travel across 
+        /// gridcomms to make it to the Instant Message Module.
+        /// 
+        /// Friendship establishment and groups are unfortunately tied with instant messaging and 
+        /// there's no way to separate them completely.
+        /// </summary>
+        /// <param name="message">object containing the instant message data</param>
+        /// <returns>void</returns>
+        public void TriggerGridInstantMessage(GridInstantMessage message,InstantMessageReceiver options)
+        {
+            m_eventManager.TriggerGridInstantMessage(message,options);
+        }
+
+
+        public virtual void StoreAddFriendship(LLUUID ownerID, LLUUID friendID, uint perms)
+        {
+            // TODO: m_sceneGridService.DoStuff;
+            CommsManager.AddNewUserFriend(ownerID, friendID, perms);
+        }
+
+        public virtual void StoreUpdateFriendship(LLUUID ownerID, LLUUID friendID, uint perms)
+        {
+            // TODO: m_sceneGridService.DoStuff;
+            CommsManager.UpdateUserFriendPerms(ownerID, friendID, perms);
+        }
+
+        public virtual void StoreRemoveFriendship(LLUUID ownerID, LLUUID ExfriendID)
+        {
+            // TODO: m_sceneGridService.DoStuff;
+            CommsManager.RemoveUserFriend(ownerID, ExfriendID);
+        }
+        public virtual List<FriendListItem> StoreGetFriendsForUser(LLUUID ownerID)
+        {
+            // TODO: m_sceneGridService.DoStuff;
+            return CommsManager.GetUserFriendList(ownerID);
+        }
+
         #endregion
 
         #region Console Commands
diff --git a/OpenSim/Region/Environment/Scenes/SceneEvents.cs b/OpenSim/Region/Environment/Scenes/SceneEvents.cs
index a6a8fb6..5bf23ac 100644
--- a/OpenSim/Region/Environment/Scenes/SceneEvents.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneEvents.cs
@@ -27,12 +27,14 @@
 */
 
 using libsecondlife;
+using System;
 using OpenSim.Framework;
 using OpenSim.Region.Environment.Interfaces;
 using OpenSim.Region.Environment.LandManagement;
 
 namespace OpenSim.Region.Environment.Scenes
 {
+
     /// <summary>
     /// A class for triggering remote scene events.
     /// </summary>
@@ -115,6 +117,16 @@ namespace OpenSim.Region.Environment.Scenes
         public event AvatarEnteringNewParcel OnAvatarEnteringNewParcel;
 
 
+        public delegate void NewGridInstantMessage(GridInstantMessage message);
+
+        public event NewGridInstantMessage OnGridInstantMessageToIMModule;
+
+        public event NewGridInstantMessage OnGridInstantMessageToFriendsModule;
+
+        public event NewGridInstantMessage OnGridInstantMessageToGroupsModule;
+
+
+
         public void TriggerOnClientMovement(ScenePresence avatar)
         {
             if (OnClientMovement != null)
@@ -265,5 +277,29 @@ namespace OpenSim.Region.Environment.Scenes
                 OnAvatarEnteringNewParcel(avatar, localLandID, regionID);
             }
         }
+
+        ///<summary>Used to pass instnat messages around between the Scene, the Friends Module and the Instant Messsage Module</summary>
+        ///<param name="message">Object containing the Instant Message Data</param>
+        ///<param name="whichModule">A bit vector containing the modules to send the message to</param>
+        public void TriggerGridInstantMessage(GridInstantMessage message, InstantMessageReceiver whichModule)
+        {
+            if ((whichModule & InstantMessageReceiver.IMModule) != 0)
+            {
+
+                if (OnGridInstantMessageToIMModule != null)
+                {
+                    OnGridInstantMessageToIMModule(message);
+                }
+            }
+            if ((whichModule & InstantMessageReceiver.FriendsModule) != 0)
+            {
+                if (OnGridInstantMessageToFriendsModule != null)
+                {
+                    OnGridInstantMessageToFriendsModule(message);
+                }
+
+            }
+        }
+        
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Examples/SimpleApp/MyNpcCharacter.cs b/OpenSim/Region/Examples/SimpleApp/MyNpcCharacter.cs
index 3e191b4..b6db4cc 100644
--- a/OpenSim/Region/Examples/SimpleApp/MyNpcCharacter.cs
+++ b/OpenSim/Region/Examples/SimpleApp/MyNpcCharacter.cs
@@ -139,6 +139,9 @@ namespace SimpleApp
         public event RegionInfoRequest OnRegionInfoRequest;
         public event EstateCovenantRequest OnEstateCovenantRequest;
 
+        public event FriendActionDelegate OnApproveFriendRequest;
+        public event FriendActionDelegate OnDenyFriendRequest;
+        public event FriendshipTermination OnTerminateFriendship;
 
 #pragma warning restore 67
 
diff --git a/bin/inventory/Libraries.xml b/bin/inventory/Libraries.xml
index 09270b5..eb3660d 100644
--- a/bin/inventory/Libraries.xml
+++ b/bin/inventory/Libraries.xml
@@ -7,7 +7,7 @@
        the hardcoded root library folder ("OpenSim Library") 
 
        You can also add folders and items to the folders of libraries defined earlier on in this file -->
-
+ 
 <!--
   <Section Name="My Site Library">
     <Key Name="foldersFile" Value="MySiteLibrary/MySiteLibraryFolders.xml"/>