* Fixed a few warnings.

* Added license info to a few files it was missing from.
* Fleshed out the landbuy interfaces
* If you add '-helperuri http://127.0.0.1:9000/' to your list of parameters you tell the client to use when you start it up you can transfer ownership of parcels now in standalone.  Structured gridmode requires a lot more work, see the documentation in the example money module.   The example money module is not secure especially in standalone mode.

OpenSim/Region/Environment/Modules/BetaGridLikeMoneyModule.cs

@@ -39,12 +39,20 @@ using OpenSim.Region.Environment.Scenes;
 using Nwc.XmlRpc;
 
 using MoneyTransferArgs = OpenSim.Region.Environment.Scenes.EventManager.MoneyTransferArgs;
+using LandBuyArgs = OpenSim.Region.Environment.Scenes.EventManager.LandBuyArgs;
 
 namespace OpenSim.Region.Environment.Modules
 {   
     /// <summary>
     /// Demo Economy/Money Module.  This is not a production quality money/economy module!
     /// This is a demo for you to use when making one that works for you.
+    ///  // To use the following you need to add:
+    /// -helperuri <ADDRESS TO HERE OR grid MONEY SERVER> 
+    /// to the command line parameters you use to start up your client
+    /// This commonly looks like -helperuri http://127.0.0.1:9000/
+    /// 
+    /// Centralized grid structure example using OpenSimWi Redux revision 9+
+    /// svn co https://opensimwiredux.svn.sourceforge.net/svnroot/opensimwiredux
     /// </summary>
     public class BetaGridLikeMoneyModule: IRegionModule
     {
@@ -134,6 +142,7 @@ namespace OpenSim.Region.Environment.Modules
                        if (m_MoneyAddress.Length > 0)
                        {
                            // Centralized grid structure using OpenSimWi Redux revision 9+
+                           // https://opensimwiredux.svn.sourceforge.net/svnroot/opensimwiredux
                            scene.AddXmlRPCHandler("dynamic_balance_update_request", GridMoneyUpdate);
                        }
                        else
@@ -165,6 +174,8 @@ namespace OpenSim.Region.Environment.Modules
                 scene.EventManager.OnAvatarEnteringNewParcel += AvatarEnteringParcel;
                 scene.EventManager.OnMakeChildAgent += MakeChildAgent;
                 scene.EventManager.OnClientClosed += ClientLoggedOut;
+                scene.EventManager.OnLandBuy += ValidateLandBuy;
+                scene.EventManager.OnValidatedLandBuy += processLandBuy;
                 
             }
         }
@@ -329,6 +340,101 @@ namespace OpenSim.Region.Environment.Modules
             }
         }
 
+        private void ValidateLandBuy (Object osender, LandBuyArgs e)
+        {
+            LLUUID agentId = e.agentId;
+            int price = e.parcelPrice;
+            bool final = e.final;
+            
+            int funds = 0;
+
+            if (m_MoneyAddress.Length > 0)
+            {
+                IClientAPI aClient = LocateClientObject(agentId);
+                if (aClient != null)
+                {
+                    Scene s = LocateSceneClientIn(agentId);
+                    if (s != null)
+                    {
+                        Hashtable hbinfo = GetBalanceForUserFromMoneyServer(aClient.AgentId, aClient.SecureSessionId, s.RegionInfo.originRegionID.ToString(), s.RegionInfo.regionSecret);
+                        if ((bool)hbinfo["success"] == true)
+                        {
+
+                            Helpers.TryParse((string)hbinfo["agentId"], out agentId);
+                            try
+                            {
+                                funds = (Int32)hbinfo["funds"];
+                            }
+                            catch (ArgumentException)
+                            {
+                            }
+                            catch (FormatException)
+                            {
+                            }
+                            catch (OverflowException)
+                            {
+                                m_log.ErrorFormat("[MONEY]: While getting the Currency for user {0}, the return funds overflowed.", agentId);
+                                aClient.SendAlertMessage("Unable to get your money balance, money operations will be unavailable");
+                            }
+                            catch (InvalidCastException)
+                            {
+                                funds = 0;
+                            }
+
+                            SetLocalFundsForAgentID(agentId, funds);
+
+                        }
+                        else
+                        {
+                            m_log.WarnFormat("[MONEY]: Getting Money for user {0} failed with the following message:{1}", agentId, (string)hbinfo["errorMessage"]);
+                            aClient.SendAlertMessage((string)hbinfo["errorMessage"]);
+                        }
+                    }
+                }
+            }
+            else
+            {
+                funds = GetFundsForAgentID(agentId);
+            }
+            if (funds >= e.parcelPrice)
+            {
+                lock (e)
+                {
+                    e.economyValidated = true;
+                }
+                XMLRPCHandler.EventManager.TriggerValidatedLandBuy(this, e);
+            }
+        }
+
+        private void processLandBuy(Object osender, LandBuyArgs e)
+        {
+            LLUUID agentId = e.agentId;
+            int price = e.parcelPrice;
+            bool final = e.final;
+
+            int funds = 0;
+            
+            // Only do this if we have not already transacted against this.
+            if (e.transactionID == 0)
+            {
+                funds = GetFundsForAgentID(e.agentId);
+                if (e.landValidated)
+                {
+                    if (e.parcelPrice >= 0)
+                    {
+                        doMoneyTranfer(agentId, e.parcelOwnerID, e.parcelPrice);
+                        lock (e)
+                        {
+                            e.transactionID = Util.UnixTimeSinceEpoch();
+                            e.amountDebited = e.parcelPrice;
+                        }
+                    }
+                    // This tells the land module that we've transacted.
+                    XMLRPCHandler.EventManager.TriggerValidatedLandBuy(this, e);
+                }
+            }
+
+        }
         /// <summary>
         /// THis method gets called when someone pays someone else as a gift.
         /// </summary>

OpenSim/Region/Environment/Modules/LandManagement/LandChannel.cs

@@ -1,7 +1,33 @@
-using System;
+/*
+ * 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 System.Collections.Generic;
 using System.Text;
-
 using Axiom.Math;
 using libsecondlife;
 using libsecondlife.Packets;
@@ -11,6 +37,8 @@ using OpenSim.Region.Environment.Scenes;
 using OpenSim.Region.Environment.Interfaces;
 using OpenSim.Region.Physics.Manager;
 
+using LandBuyArgs = OpenSim.Region.Environment.Scenes.EventManager.LandBuyArgs;
+
 namespace OpenSim.Region.Environment.Modules.LandManagement
 {
     public class LandChannel : ILandChannel
@@ -232,6 +260,18 @@ namespace OpenSim.Region.Environment.Modules.LandManagement
             }
         }
 
+        public ILandObject getLandObject(int parcelLocalID)
+        {
+            lock (landList)
+            {
+                if (landList.ContainsKey(parcelLocalID))
+                {
+                    return landList[parcelLocalID];
+                }
+            }
+            return null;
+        }
+
         public ILandObject getLandObject(int x, int y)
         {
             if (x >= Convert.ToInt32(Constants.RegionSize) || y >= Convert.ToInt32(Constants.RegionSize) || x < 0 || y < 0)
@@ -657,6 +697,7 @@ namespace OpenSim.Region.Environment.Modules.LandManagement
             if (landList.ContainsKey(packet.ParcelData.LocalID))
             {
                 landList[packet.ParcelData.LocalID].updateLandProperties(packet, remote_client);
+                
             }
         }
 
@@ -912,5 +953,49 @@ namespace OpenSim.Region.Environment.Modules.LandManagement
             }
         }
 
+        public void handleLandBuyRequest(Object o, LandBuyArgs e)
+        {
+            if (e.economyValidated && e.landValidated)
+            {
+                lock (landList)
+                {
+                    if (landList.ContainsKey(e.parcelLocalID))
+                    {
+                        landList[e.parcelLocalID].updateLandSold(e.agentId, e.groupId, e.groupOwned, (uint)e.transactionID, e.parcelPrice, e.parcelArea);
+                        return;
+                    }
+                }
+            }
+            else if (e.landValidated == false)
+            {
+                ILandObject lob = null;
+                lock (landList)
+                {
+                    if (landList.ContainsKey(e.parcelLocalID))
+                    {
+                        lob = landList[e.parcelLocalID];
+                    }
+                }
+                if (lob != null)
+                {
+                    LLUUID AuthorizedID = lob.landData.authBuyerID;
+                    int saleprice = lob.landData.salePrice;
+                    LLUUID pOwnerID = lob.landData.ownerID;
+                    
+                    bool landforsale = ((lob.landData.landFlags & (uint)(libsecondlife.Parcel.ParcelFlags.ForSale | libsecondlife.Parcel.ParcelFlags.ForSaleObjects | libsecondlife.Parcel.ParcelFlags.SellParcelObjects)) != 0);
+                    if ((AuthorizedID == LLUUID.Zero || AuthorizedID == e.agentId) && e.parcelPrice >= saleprice && landforsale)
+                    {
+                        lock (e)
+                        {
+                            e.parcelOwnerID = pOwnerID;
+                            e.landValidated = true;
+
+                        }
+                        
+                    }
+                }
+                m_scene.EventManager.TriggerValidatedLandBuy(this, e);
+            }
+        }
     }
 }

OpenSim/Region/Environment/Modules/LandManagement/LandManagementModule.cs

@@ -1,4 +1,31 @@
-using System;
+/*
+ * 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 System.Collections.Generic;
 using libsecondlife;
 using libsecondlife.Packets;
@@ -8,6 +35,8 @@ using OpenSim.Region.Environment.Scenes;
 using OpenSim.Region.Environment.Interfaces;
 using Nini.Config;
 
+using LandBuyArgs = OpenSim.Region.Environment.Scenes.EventManager.LandBuyArgs;
+
 namespace OpenSim.Region.Environment.Modules.LandManagement
 {
     public class LandManagementModule : IRegionModule
@@ -26,6 +55,8 @@ namespace OpenSim.Region.Environment.Modules.LandManagement
             m_scene.EventManager.OnParcelPrimCountUpdate += landChannel.updateLandPrimCounts;
             m_scene.EventManager.OnAvatarEnteringNewParcel += new EventManager.AvatarEnteringNewParcel(landChannel.handleAvatarChangingParcel);
             m_scene.EventManager.OnClientMovement += new EventManager.ClientMovement(landChannel.handleAnyClientMovement);
+            m_scene.EventManager.OnLandBuy += landChannel.handleLandBuyRequest;
+            m_scene.EventManager.OnValidatedLandBuy += landChannel.handleLandBuyRequest;
 
             lock (m_scene)
             {

OpenSim/Region/Environment/Modules/LandManagement/LandObject.cs

@@ -256,12 +256,28 @@ namespace OpenSim.Region.Environment.Modules.LandManagement
                 newData.snapshotID = packet.ParcelData.SnapshotID;
                 newData.userLocation = packet.ParcelData.UserLocation;
                 newData.userLookAt = packet.ParcelData.UserLookAt;
-
+                
                 m_scene.LandChannel.updateLandObject(landData.localID, newData);
 
                 sendLandUpdateToAvatarsOverMe();
             }
         }
+        public void updateLandSold(LLUUID avatarID, LLUUID groupID, bool groupOwned, uint AuctionID, int claimprice, int area)
+        {
+            LandData newData = landData.Copy();
+            newData.ownerID = avatarID;
+            newData.groupID = groupID;
+            newData.isGroupOwned = groupOwned;
+            //newData.auctionID = AuctionID;
+            newData.claimDate = Util.UnixTimeSinceEpoch();
+            newData.claimPrice = claimprice;
+            newData.salePrice = 0;
+            newData.authBuyerID = LLUUID.Zero;
+            newData.landFlags &= ~(uint)(libsecondlife.Parcel.ParcelFlags.ForSale | Parcel.ParcelFlags.ForSaleObjects | Parcel.ParcelFlags.SellParcelObjects);
+            m_scene.LandChannel.updateLandObject(landData.localID, newData);
+
+            sendLandUpdateToAvatarsOverMe();
+        }
 
         public bool isEitherBannedOrRestricted(LLUUID avatar)
         {