1 files changed, 240 insertions, 0 deletions

diff --git a/OpenSim/Services/Connectors/SimianGrid/SimianFriendsServiceConnector.cs b/OpenSim/Services/Connectors/SimianGrid/SimianFriendsServiceConnector.cs
new file mode 100644
index 0000000..89f3594
--- /dev/null
+++ b/OpenSim/Services/Connectors/SimianGrid/SimianFriendsServiceConnector.cs
@@ -0,0 +1,240 @@
+/*
+ * 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.Collections.Specialized;
+using System.Reflection;
+using log4net;
+using Mono.Addins;
+using Nini.Config;
+using OpenMetaverse;
+using OpenMetaverse.StructuredData;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+
+using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
+
+namespace OpenSim.Services.Connectors.SimianGrid
+{
+    /// <summary>
+    /// Stores and retrieves friend lists from the SimianGrid backend
+    /// </summary>
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
+    public class SimianFriendsServiceConnector : IFriendsService, ISharedRegionModule
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_serverUrl = String.Empty;
+
+        #region ISharedRegionModule
+
+        public Type ReplaceableInterface { get { return null; } }
+        public void RegionLoaded(Scene scene) { }
+        public void PostInitialise() { }
+        public void Close() { }
+
+        public SimianFriendsServiceConnector() { }
+        public string Name { get { return "SimianFriendsServiceConnector"; } }
+        public void AddRegion(Scene scene) { if (!String.IsNullOrEmpty(m_serverUrl)) { scene.RegisterModuleInterface<IFriendsService>(this); } }
+        public void RemoveRegion(Scene scene) { if (!String.IsNullOrEmpty(m_serverUrl)) { scene.UnregisterModuleInterface<IFriendsService>(this); } }
+
+        #endregion ISharedRegionModule
+
+        public SimianFriendsServiceConnector(IConfigSource source)
+        {
+            Initialise(source);
+        }
+
+        public void Initialise(IConfigSource source)
+        {
+            bool isSimianEnabled = false;
+
+            if (source.Configs["Friends"] != null)
+            {
+                string module = source.Configs["Friends"].GetString("Connector");
+                isSimianEnabled = !String.IsNullOrEmpty(module) && module.EndsWith(this.Name);
+            }
+
+            if (isSimianEnabled)
+            {
+                IConfig assetConfig = source.Configs["FriendsService"];
+                if (assetConfig == null)
+                {
+                    m_log.Error("[SIMIAN FRIENDS CONNECTOR]: FriendsService missing from OpenSim.ini");
+                    throw new Exception("Friends connector init error");
+                }
+
+                string serviceURI = assetConfig.GetString("FriendsServerURI");
+                if (String.IsNullOrEmpty(serviceURI))
+                {
+                    m_log.Error("[SIMIAN FRIENDS CONNECTOR]: No Server URI named in section FriendsService");
+                    throw new Exception("Friends connector init error");
+                }
+
+                m_serverUrl = serviceURI;
+            }
+        }
+
+        #region IFriendsService
+
+        public FriendInfo[] GetFriends(UUID principalID)
+        {
+            Dictionary<UUID, FriendInfo> friends = new Dictionary<UUID, FriendInfo>();
+
+            OSDArray friendsArray = GetFriended(principalID);
+            OSDArray friendedMeArray = GetFriendedBy(principalID);
+
+            // Load the list of friends and their granted permissions
+            for (int i = 0; i < friendsArray.Count; i++)
+            {
+                OSDMap friendEntry = friendsArray[i] as OSDMap;
+                if (friendEntry != null)
+                {
+                    UUID friendID = friendEntry["Key"].AsUUID();
+
+                    FriendInfo friend = new FriendInfo();
+                    friend.PrincipalID = principalID;
+                    friend.Friend = friendID.ToString();
+                    friend.MyFlags = friendEntry["Value"].AsInteger();
+                    friend.TheirFlags = -1;
+
+                    friends[friendID] = friend;
+                }
+            }
+
+            // Load the permissions those friends have granted to this user
+            for (int i = 0; i < friendedMeArray.Count; i++)
+            {
+                OSDMap friendedMeEntry = friendedMeArray[i] as OSDMap;
+                if (friendedMeEntry != null)
+                {
+                    UUID friendID = friendedMeEntry["OwnerID"].AsUUID();
+
+                    FriendInfo friend;
+                    if (friends.TryGetValue(friendID, out friend))
+                        friend.TheirFlags = friendedMeEntry["Value"].AsInteger();
+                }
+            }
+
+            // Convert the dictionary of friends to an array and return it
+            FriendInfo[] array = new FriendInfo[friends.Count];
+            int j = 0;
+            foreach (FriendInfo friend in friends.Values)
+                array[j++] = friend;
+
+            return array;
+        }
+
+        public bool StoreFriend(UUID principalID, string friend, int flags)
+        {
+            NameValueCollection requestArgs = new NameValueCollection
+            {
+                { "RequestMethod", "AddGeneric" },
+                { "OwnerID", principalID.ToString() },
+                { "Type", "Friend" },
+                { "Key", friend },
+                { "Value", flags.ToString() }
+            };
+
+            OSDMap response = WebUtil.PostToService(m_serverUrl, requestArgs);
+            bool success = response["Success"].AsBoolean();
+
+            if (!success)
+                m_log.Error("[SIMIAN FRIENDS CONNECTOR]: Failed to store friend " + friend + " for user " + principalID + ": " + response["Message"].AsString());
+
+            return success;
+        }
+
+        public bool Delete(UUID principalID, string friend)
+        {
+            NameValueCollection requestArgs = new NameValueCollection
+            {
+                { "RequestMethod", "RemoveGeneric" },
+                { "OwnerID", principalID.ToString() },
+                { "Type", "Friend" },
+                { "Key", friend }
+            };
+
+            OSDMap response = WebUtil.PostToService(m_serverUrl, requestArgs);
+            bool success = response["Success"].AsBoolean();
+
+            if (!success)
+                m_log.Error("[SIMIAN FRIENDS CONNECTOR]: Failed to remove friend " + friend + " for user " + principalID + ": " + response["Message"].AsString());
+
+            return success;
+        }
+
+        #endregion IFriendsService
+
+        private OSDArray GetFriended(UUID ownerID)
+        {
+            NameValueCollection requestArgs = new NameValueCollection
+            {
+                { "RequestMethod", "GetGenerics" },
+                { "OwnerID", ownerID.ToString() },
+                { "Type", "Friend" }
+            };
+
+            OSDMap response = WebUtil.PostToService(m_serverUrl, requestArgs);
+            if (response["Success"].AsBoolean() && response["Entries"] is OSDArray)
+            {
+                return (OSDArray)response["Entries"];
+            }
+            else
+            {
+                m_log.Warn("[SIMIAN FRIENDS CONNECTOR]: Failed to retrieve friends for user " + ownerID + ": " + response["Message"].AsString());
+                return new OSDArray(0);
+            }
+        }
+
+        private OSDArray GetFriendedBy(UUID ownerID)
+        {
+            NameValueCollection requestArgs = new NameValueCollection
+            {
+                { "RequestMethod", "GetGenerics" },
+                { "Key", ownerID.ToString() },
+                { "Type", "Friend" }
+            };
+
+            OSDMap response = WebUtil.PostToService(m_serverUrl, requestArgs);
+            if (response["Success"].AsBoolean() && response["Entries"] is OSDArray)
+            {
+                return (OSDArray)response["Entries"];
+            }
+            else
+            {
+                m_log.Warn("[SIMIAN FRIENDS CONNECTOR]: Failed to retrieve reverse friends for user " + ownerID + ": " + response["Message"].AsString());
+                return new OSDArray(0);
+            }
+        }
+    }
+}