* From: Dr Scofield <hud@zurich.ibm.com>

* This patch removes voice code into a region module.  This required the implementation of events and other code to allow region modules to register their own caps handlers, and should allow different voice module implementations.
* CAVEAT: This does not provide complete voice support, it merely provides the hooks so that it can be plugged in.

6 files changed, 426 insertions, 195 deletions

diff --git a/OpenSim/Framework/Communications/Capabilities/Caps.cs b/OpenSim/Framework/Communications/Capabilities/Caps.cs
index 53cad66..886ca49 100644
--- a/OpenSim/Framework/Communications/Capabilities/Caps.cs
+++ b/OpenSim/Framework/Communications/Capabilities/Caps.cs
@@ -55,25 +55,22 @@ namespace OpenSim.Region.Capabilities
     public delegate List<InventoryItemBase> FetchInventoryDescendentsCAPS(LLUUID agentID, LLUUID folderID, LLUUID ownerID,
                                                    bool fetchFolders, bool fetchItems, int sortOrder);
 
-    /// <summary>
-    /// FIXME This is a temporary delegate, and should disappear once the voice code is fleshed out and moved into its 
-    /// own region module.
-    /// </summary>
-    public delegate CachedUserInfo GetUserDetailsCAPS(LLUUID agentID);
-
     public class Caps
     {
-        private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
-
+        private static readonly log4net.ILog m_log = 
+            log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+        
         private string m_httpListenerHostName;
         private uint m_httpListenPort;
-
+        
         /// <summary>
         /// This is the uuid portion of every CAPS path.  It is used to make capability urls private to the requester.
         /// </summary>
         private string m_capsObjectPath;        
         public string CapsObjectPath { get { return m_capsObjectPath; } }
 
+        private CapsHandlers m_capsHandlers;
+
         private static readonly string m_requestPath = "0000/";
         private static readonly string m_mapLayerPath = "0001/";
         private static readonly string m_newInventory = "0002/";
@@ -99,7 +96,6 @@ namespace OpenSim.Region.Capabilities
         public TaskScriptUpdatedCallback TaskScriptUpdatedCall = null;
         //
         public FetchInventoryDescendentsCAPS CAPSFetchInventoryDescendents = null;
-        public GetUserDetailsCAPS CAPSGetUserDetails = null;
 
         public Caps(AssetCache assetCache, BaseHttpServer httpServer, string httpListen, uint httpPort, string capsPath,
                     LLUUID agent, bool dumpAssetsToFile)
@@ -111,6 +107,7 @@ namespace OpenSim.Region.Capabilities
             m_httpListenPort = httpPort;
             m_agentID = agent;
             m_dumpAssetsToFile = dumpAssetsToFile;
+            m_capsHandlers = new CapsHandlers(httpServer, httpListen, httpPort);
         }
 
         /// <summary>
@@ -123,27 +120,31 @@ namespace OpenSim.Region.Capabilities
             string capsBase = "/CAPS/" + m_capsObjectPath;                        
             
             try
-            {                
-                m_httpListener.AddStreamHandler(
-                    new LLSDStreamhandler<LLSDMapRequest, LLSDMapLayerResponse>("POST", capsBase + m_mapLayerPath, GetMapLayer));                
-                m_httpListener.AddStreamHandler(
+            {
+                // the root of all evil
+                m_capsHandlers["SEED"] = new RestStreamHandler("POST", capsBase + m_requestPath, CapsRequest);
+                m_capsHandlers["MapLayer"] = 
+                    new LLSDStreamhandler<LLSDMapRequest, LLSDMapLayerResponse>("POST", 
+                                                                                capsBase + m_mapLayerPath, 
+                                                                                GetMapLayer);
+                m_capsHandlers["NewFileAgentInventory"] =  
                     new LLSDStreamhandler<LLSDAssetUploadRequest, LLSDAssetUploadResponse>("POST",
                                                                                            capsBase + m_newInventory,
-                                                                                           NewAgentInventoryRequest));
-                
-               // m_httpListener.AddStreamHandler(
-                 //  new LLSDStreamhandler<LLSDFetchInventoryDescendents, LLSDInventoryDescendents>("POST",
-              //                                                                            capsBase + m_fetchInventory,
-              //                                                                            FetchInventory));
-
-
-                AddLegacyCapsHandler(m_httpListener, m_requestPath, CapsRequest);
-                //AddLegacyCapsHandler(m_httpListener, m_requestTexture , RequestTexture);
-                AddLegacyCapsHandler(m_httpListener, m_parcelVoiceInfoRequestPath, ParcelVoiceInfoRequest);
-                AddLegacyCapsHandler(m_httpListener, m_provisionVoiceAccountRequestPath, ProvisionVoiceAccountRequest);
-                AddLegacyCapsHandler(m_httpListener, m_notecardUpdatePath, NoteCardAgentInventory);
-                AddLegacyCapsHandler(m_httpListener, m_notecardTaskUpdatePath, ScriptTaskInventory);
-                AddLegacyCapsHandler(m_httpListener, m_fetchInventoryPath, FetchInventoryRequest);
+                                                                                           NewAgentInventoryRequest);
+                m_capsHandlers["UpdateNotecardAgentInventory"] = 
+                    new RestStreamHandler("POST", capsBase + m_notecardUpdatePath, NoteCardAgentInventory);
+                m_capsHandlers["UpdateScriptAgentInventory"] = m_capsHandlers["UpdateNotecardAgentInventory"];
+                m_capsHandlers["UpdateScriptTaskInventory"] = 
+                    new RestStreamHandler("POST", capsBase + m_notecardTaskUpdatePath, ScriptTaskInventory);
+                m_capsHandlers["FetchInventoryDescendents"] = 
+                    new RestStreamHandler("POST", capsBase + m_fetchInventoryPath, FetchInventoryRequest);
+                // m_capsHandlers["FetchInventoryDescendents"] = 
+                //     new LLSDStreamhandler<LLSDFetchInventoryDescendents, LLSDInventoryDescendents>("POST",
+                //                                                                                    capsBase + m_fetchInventory,
+                //                                                                                    FetchInventory));
+                // m_capsHandlers["RequestTextureDownload"] = new RestStreamHandler("POST",
+                //                                                                  capsBase + m_requestTexture, 
+                //                                                                  RequestTexture);
             }
             catch (Exception e)
             {
@@ -152,35 +153,29 @@ namespace OpenSim.Region.Capabilities
         }
 
         /// <summary>
+        /// Register a handler.  This allows modules to register handlers.
+        /// </summary>
+        /// <param name="capName"></param>
+        /// <param name="handler"></param>
+        public void RegisterHandler(string capName, IRequestHandler handler) 
+        {
+            m_capsHandlers[capName] = handler;
+            m_log.DebugFormat("[CAPS]: Registering handler for \"{0}\": path {1}", capName, handler.Path);
+        }
+
+        /// <summary>
         /// Remove all CAPS service handlers.
         /// 
-        /// FIXME: Would be much nicer to remove and all paths to a single list.  However, this is a little awkward
-        /// than it could be as we set up some handlers differently (legacy and non-legacy)
         /// </summary>
         /// <param name="httpListener"></param>
         /// <param name="path"></param>
         /// <param name="restMethod"></param>
         public void DeregisterHandlers()
         {
-            string capsBase = "/CAPS/" + m_capsObjectPath;            
-            
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_mapLayerPath);                            
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_newInventory);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_requestPath);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_parcelVoiceInfoRequestPath);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_provisionVoiceAccountRequestPath);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_notecardUpdatePath);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_notecardTaskUpdatePath);
-            m_httpListener.RemoveStreamHandler("POST", capsBase + m_fetchInventoryPath);
-        }
-
-        //[Obsolete("Use BaseHttpServer.AddStreamHandler(new LLSDStreamHandler( LLSDMethod delegate )) instead.")]
-        //Commented out the obsolete as at this time the first caps request can not use the new Caps method 
-        //as the sent type is a array and not a map and the deserialising doesn't deal properly with arrays.
-        private void AddLegacyCapsHandler(BaseHttpServer httpListener, string path, RestMethod restMethod)
-        {
-            string capsBase = "/CAPS/" + m_capsObjectPath; 
-            httpListener.AddStreamHandler(new RestStreamHandler("POST", capsBase + path, restMethod));
+            foreach(string capsName in m_capsHandlers.Caps) 
+            {
+                m_capsHandlers.Remove(capsName);
+            }
         }
 
         /// <summary>
@@ -193,31 +188,12 @@ namespace OpenSim.Region.Capabilities
         public string CapsRequest(string request, string path, string param)
         {
             //Console.WriteLine("caps request " + request);
-            string result = LLSDHelpers.SerialiseLLSDReply(GetCapabilities());
+            string result = LLSDHelpers.SerialiseLLSDReply(m_capsHandlers.CapsDetails);
             return result;
         }
 
-        /// <summary>
-        /// Return an LLSDCapsDetails listing all the capabilities this server can provide
-        /// </summary>
-        /// <returns></returns>
-        protected LLSDCapsDetails GetCapabilities()
-        {
-            LLSDCapsDetails caps = new LLSDCapsDetails();
-            string capsBaseUrl = "http://" + m_httpListenerHostName + ":" + m_httpListenPort.ToString() + "/CAPS/" +
-                                 m_capsObjectPath;
-            caps.MapLayer = capsBaseUrl + m_mapLayerPath;
-            // caps.RequestTextureDownload = capsBaseUrl + m_requestTexture;
-            caps.NewFileAgentInventory = capsBaseUrl + m_newInventory;
-            caps.UpdateNotecardAgentInventory = capsBaseUrl + m_notecardUpdatePath;
-            caps.UpdateScriptAgentInventory = capsBaseUrl + m_notecardUpdatePath;
-            caps.UpdateScriptTaskInventory = capsBaseUrl + m_notecardTaskUpdatePath;
-            caps.FetchInventoryDescendents = capsBaseUrl + m_fetchInventoryPath;
-            caps.ParcelVoiceInfoRequest = capsBaseUrl + m_parcelVoiceInfoRequestPath;
-            caps.ProvisionVoiceAccountRequest = capsBaseUrl + m_provisionVoiceAccountRequestPath;
-
-            return caps;
-        }
+        // FIXME: these all should probably go into the respective region
+        // modules
 
         public string FetchInventoryRequest(string request, string path, string param)
         {
@@ -443,75 +419,6 @@ namespace OpenSim.Region.Capabilities
             return null;
         }
 
-         /// <summary>
-        /// Callback for a client request for ParcelVoiceInfo
-        /// </summary>
-        /// <param name="request"></param>
-        /// <param name="path"></param>
-        /// <param name="param"></param>
-        /// <returns></returns>
-        public string ParcelVoiceInfoRequest(string request, string path, string param) {
-            try
-            {
-                m_log.DebugFormat("[CAPS][PARCELVOICE]: request: {0}, path: {1}, param: {2}", request, path, param);
-
-                // XXX brutal hack, we need to get channel_uri, region
-                // name, and parcel_local_id from somewhere
-                Hashtable creds = new Hashtable();
-
-                creds["channel_uri"] = "sip:testroom@testserver.com";
-                
-                LLSDParcelVoiceInfoResponse parcelVoiceInfo = 
-                    new LLSDParcelVoiceInfoResponse("OpenSim Test", 1, creds);
-                
-                // XXX for debugging purposes:
-                string r = LLSDHelpers.SerialiseLLSDReply(parcelVoiceInfo);
-                m_log.DebugFormat("[CAPS][PARCELVOICE]: {0}", r);
-
-                return r;
-            }
-            catch (Exception e)
-            {
-                m_log.Error("[CAPS]: " + e.ToString());
-            }
-            
-            return null;
-        }
-
-        /// <summary>
-        /// Callback for a client request for Voice Account Details
-        /// </summary>
-        /// <param name="request"></param>
-        /// <param name="path"></param>
-        /// <param name="param"></param>
-        /// <returns></returns>
-        public string ProvisionVoiceAccountRequest(string request, string path, string param) {
-            try
-            {
-                m_log.DebugFormat("[CAPS][PROVISIONVOICE]: request: {0}, path: {1}, param: {2}", request, path, param);
-
-                if (null == CAPSGetUserDetails) throw new Exception("CAPSGetUserDetails null");
-
-                string voiceUser = "x" + Convert.ToBase64String(m_agentID.GetBytes());
-                voiceUser = voiceUser.Replace('+', '-').Replace('/', '_');
-
-                CachedUserInfo userInfo = CAPSGetUserDetails(m_agentID);
-                if (null == userInfo) throw new Exception("CAPSGetUserDetails returned null");
-
-                LLSDVoiceAccountResponse voiceAccountResponse = 
-                    new LLSDVoiceAccountResponse(voiceUser, "$1$" + userInfo.UserProfile.passwordHash);
-                string r = LLSDHelpers.SerialiseLLSDReply(voiceAccountResponse);
-                m_log.DebugFormat("[CAPS][PROVISIONVOICE]: {0}", r);
-                return r;
-            }
-            catch (Exception e)
-            {
-                m_log.Error("[CAPS][PROVISIONVOICE]: " + e.ToString());
-            }
-
-            return null;
-        }
-
         /// <summary>
         /// Called by the notecard update handler.  Provides a URL to which the client can upload a new asset.
         /// </summary>
diff --git a/OpenSim/Framework/Communications/Capabilities/CapsHandlers.cs b/OpenSim/Framework/Communications/Capabilities/CapsHandlers.cs
new file mode 100755
index 0000000..a3d6b71
--- /dev/null
+++ b/OpenSim/Framework/Communications/Capabilities/CapsHandlers.cs
@@ -0,0 +1,144 @@
+/*

+ * 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;

+using System.Collections.Generic;

+using System.IO;

+using libsecondlife;

+using OpenSim.Framework;

+using OpenSim.Framework.Communications.Cache;

+using OpenSim.Framework.Console;

+using OpenSim.Framework.Servers;

+

+namespace OpenSim.Region.Capabilities

+{

+    /// <summary>

+    /// CapsHandlers is a cap handler container but also takes

+    /// care of adding and removing cap handlers to and from the

+    /// supplied BaseHttpServer.

+    /// </summary>

+    public class CapsHandlers

+    {

+        private Dictionary <string, IRequestHandler> m_capsHandlers = new Dictionary<string, IRequestHandler>();

+        private BaseHttpServer m_httpListener;

+        private string m_httpListenerHostName;

+        private uint m_httpListenerPort;

+

+        /// <summary></summary>

+        /// <param name="httpListener">base HTTP server</param>

+        /// <param name="httpListenerHostname">host name of the HTTP

+        /// server</param>

+        /// <param name="httpListenerPort">HTTP port</param>

+        public CapsHandlers(BaseHttpServer httpListener, string httpListenerHostname, uint httpListenerPort)

+        {

+            m_httpListener = httpListener;

+            m_httpListenerHostName = httpListenerHostname;

+            m_httpListenerPort = httpListenerPort;

+        }

+

+        /// <summary>

+        /// Remove the cap handler for a capability.

+        /// </summary>

+        /// <param name="capsName">name of the capability of the cap

+        /// handler to be removed</param>

+        public void Remove(string capsName) 

+        {

+            m_capsHandlers.Remove(capsName);

+        }

+

+        public bool ContainsCap(string cap) 

+        {

+            return m_capsHandlers.ContainsKey(cap);

+        }

+

+        /// <summary>

+        /// The indexer allows us to treat the CapsHandlers object

+        /// in an intuitive dictionary like way.

+        /// </summary>

+        /// <Remarks>

+        /// The indexer will throw an exception when you try to

+        /// retrieve a cap handler for a cap that is not contained in

+        /// CapsHandlers.

+        /// </Remarks>

+        public IRequestHandler this[string idx] 

+        {

+            get 

+            {

+                return m_capsHandlers[idx];

+            }

+

+            set 

+            {

+                if (m_capsHandlers.ContainsKey(idx))

+                {

+                    m_httpListener.RemoveStreamHandler("POST", m_capsHandlers[idx].Path);

+                    m_capsHandlers.Remove(idx);

+                }

+

+                if (null == value) return;

+

+                m_capsHandlers[idx] = value;

+                m_httpListener.AddStreamHandler(value);

+            }

+        }

+

+        /// <summary>

+        /// Return the list of cap names for which this CapsHandlers

+        /// object contains cap handlers.

+        /// </summary>

+        public string[] Caps 

+        {

+            get 

+            {

+                string[] __keys = new string[m_capsHandlers.Keys.Count];

+                m_capsHandlers.Keys.CopyTo(__keys, 0);

+                return __keys;

+            }

+        }

+

+        /// <summary>

+        /// Return an LLSD-serializable Hashtable describing the

+        /// capabilities and their handler details.

+        /// </summary>

+        public Hashtable CapsDetails 

+        {

+            get

+            {

+                Hashtable caps = new Hashtable();

+                string baseUrl = "http://" + m_httpListenerHostName + ":" + m_httpListenerPort.ToString();

+                foreach (string capsName in m_capsHandlers.Keys)

+                {

+                    // skip SEED cap

+                    if ("SEED" == capsName) continue;

+                    caps[capsName] = baseUrl + m_capsHandlers[capsName].Path;

+                }

+                return caps;

+            }

+        }

+    }

+}

diff --git a/OpenSim/Framework/Communications/Capabilities/LLSDCapsDetails.cs b/OpenSim/Framework/Communications/Capabilities/LLSDCapsDetails.cs
deleted file mode 100644
index bd1c9da..0000000
--- a/OpenSim/Framework/Communications/Capabilities/LLSDCapsDetails.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * 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;
-
-namespace OpenSim.Region.Capabilities
-{
-    [LLSDType("MAP")]
-    public class LLSDCapsDetails
-    {
-        public string MapLayer = String.Empty;
-        public string NewFileAgentInventory = String.Empty;
-        //public string EventQueueGet = String.Empty;
-        // public string RequestTextureDownload = String.Empty;
-        // public string ChatSessionRequest = String.Empty;
-        public string UpdateNotecardAgentInventory = String.Empty;
-        public string UpdateScriptAgentInventory = String.Empty;
-        public string UpdateScriptTaskInventory = String.Empty;
-        public string ParcelVoiceInfoRequest = String.Empty;
-        public string FetchInventoryDescendents = String.Empty;
-        public string ProvisionVoiceAccountRequest = String.Empty;
-
-
-        public LLSDCapsDetails()
-        {
-        }
-    }
-}
diff --git a/OpenSim/Region/Environment/Modules/VoiceModule.cs b/OpenSim/Region/Environment/Modules/VoiceModule.cs
new file mode 100644
index 0000000..b254507
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/VoiceModule.cs
@@ -0,0 +1,196 @@
+/*
+ * 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;
+using System.Collections.Generic;
+using libsecondlife;
+using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications.Cache;
+using OpenSim.Framework.Servers;
+using OpenSim.Region.Capabilities;
+using Caps = OpenSim.Region.Capabilities.Caps;
+using OpenSim.Region.Environment.Interfaces;
+using OpenSim.Region.Environment.Scenes;
+
+namespace OpenSim.Region.Environment.Modules
+{
+    public class VoiceModule : IRegionModule
+    {
+        private static readonly log4net.ILog m_log = 
+            log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Scene m_scene;
+        private IConfig m_config;
+        private string m_sipDomain;
+
+        private static readonly string m_parcelVoiceInfoRequestPath = "0007/";
+        private static readonly string m_provisionVoiceAccountRequestPath = "0008/";
+
+        public void Initialise(Scene scene, IConfigSource config)
+        {
+            m_scene = scene;
+            m_config = config.Configs["Voice"];
+
+            if (null == m_config || !m_config.GetBoolean("enabled", false)) 
+            {
+                m_log.Info("[VOICE] plugin disabled");
+                return;
+            }
+            m_log.Info("[VOICE] plugin enabled");
+
+            m_sipDomain = m_config.GetString("sip_domain", String.Empty);
+            if (String.IsNullOrEmpty(m_sipDomain))
+            {
+                m_log.Error("[VOICE] plugin mis-configured: missing sip_domain configuration");
+                m_log.Info("[VOICE] plugin disabled");
+                return;
+            }
+            m_log.InfoFormat("[VOICE] using SIP domain {0}", m_sipDomain);
+
+            scene.EventManager.OnRegisterCaps += OnRegisterCaps;
+        }
+
+        public void PostInitialise()
+        {
+        }
+
+        public void Close()
+        {
+        }
+
+        public string Name
+        {
+            get { return "VoiceModule"; }
+        }
+
+        public bool IsSharedModule
+        {
+            get { return false; }
+        }
+
+        public void OnRegisterCaps(LLUUID agentID, Caps caps) 
+        {
+            m_log.DebugFormat("[VOICE] OnRegisterCaps: agentID {0} caps {1}", agentID, caps);
+            string capsBase = "/CAPS/" + caps.CapsObjectPath; 
+            caps.RegisterHandler("ParcelVoiceInfoRequest",
+                                 new RestStreamHandler("POST", capsBase + m_parcelVoiceInfoRequestPath, 
+                                                       delegate(string request, string path, string param) 
+                                                       {
+                                                           return ParcelVoiceInfoRequest(request, path, param, 
+                                                                                         agentID, caps);
+                                                       }));
+            caps.RegisterHandler("ProvisionVoiceAccountRequest",
+                                 new RestStreamHandler("POST", capsBase + m_provisionVoiceAccountRequestPath,
+                                                       delegate(string request, string path, string param)
+                                                       {
+                                                           return ProvisionVoiceAccountRequest(request, path, param,
+                                                                                               agentID, caps);
+                                                       }));
+        }
+        
+        /// <summary>
+        /// Callback for a client request for ParcelVoiceInfo
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="path"></param>
+        /// <param name="param"></param>
+        /// <param name="agentID"></param>
+        /// <param name="caps"></param>
+        /// <returns></returns>
+        public string ParcelVoiceInfoRequest(string request, string path, string param, 
+                                             LLUUID agentID, Caps caps) 
+        {
+            try
+            {
+                m_log.DebugFormat("[VOICE][PARCELVOICE]: request: {0}, path: {1}, param: {2}", request, path, param);
+
+                // FIXME: get the creds from region file or from config
+                Hashtable creds = new Hashtable();
+
+                creds["channel_uri"] = String.Format("sip:{0}@{1}", agentID.ToString(), m_sipDomain);
+                
+                string regionName = m_scene.RegionInfo.RegionName;
+                ScenePresence avatar = m_scene.GetScenePresence(agentID);
+                if (null == m_scene.LandChannel) throw new Exception("land data not yet available");
+                LandData land = m_scene.GetLandData(avatar.AbsolutePosition.X, avatar.AbsolutePosition.Y);
+                                
+                LLSDParcelVoiceInfoResponse parcelVoiceInfo = 
+                    new LLSDParcelVoiceInfoResponse(regionName, land.localID, creds);
+                
+                string r = LLSDHelpers.SerialiseLLSDReply(parcelVoiceInfo);
+                m_log.DebugFormat("[VOICE][PARCELVOICE]: {0}", r);
+
+                return r;
+            }
+            catch (Exception e)
+            {
+                m_log.ErrorFormat("[CAPS]: {0}, try again later", e.ToString());
+            }
+            
+            return null;
+        }
+
+        /// <summary>
+        /// Callback for a client request for Voice Account Details
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="path"></param>
+        /// <param name="param"></param>
+        /// <param name="agentID"></param>
+        /// <param name="caps"></param>
+        /// <returns></returns>
+        public string ProvisionVoiceAccountRequest(string request, string path, string param, 
+                                                   LLUUID agentID, Caps caps) 
+        {
+            try
+            {
+                m_log.DebugFormat("[VOICE][PROVISIONVOICE]: request: {0}, path: {1}, param: {2}", 
+                                  request, path, param);
+
+                string voiceUser = "x" + Convert.ToBase64String(agentID.GetBytes());
+                voiceUser = voiceUser.Replace('+', '-').Replace('/', '_');
+
+                CachedUserInfo userInfo = m_scene.CommsManager.UserProfileCacheService.GetUserDetails(agentID);
+                if (null == userInfo) throw new Exception("cannot get user details");
+
+                LLSDVoiceAccountResponse voiceAccountResponse = 
+                    new LLSDVoiceAccountResponse(voiceUser, "$1$" + userInfo.UserProfile.passwordHash);
+                string r = LLSDHelpers.SerialiseLLSDReply(voiceAccountResponse);
+                m_log.DebugFormat("[CAPS][PROVISIONVOICE]: {0}", r);
+                return r;
+            }
+            catch (Exception e)
+            {
+                m_log.ErrorFormat("[CAPS][PROVISIONVOICE]: {0}, retry later", e.Message);
+            }
+
+            return null;
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 2237922..64c443d 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -1737,14 +1737,14 @@ namespace OpenSim.Region.Environment.Scenes
             Caps cap =
                 new Caps(AssetCache, m_httpListener, m_regInfo.ExternalHostName, m_httpListener.Port,
                          capsObjectPath, agentId, m_dumpAssetsToFile);
-
             cap.RegisterHandlers();
+            
+            EventManager.TriggerOnRegisterCaps(agentId, cap);
 
             cap.AddNewInventoryItem = AddInventoryItem;
             cap.ItemUpdatedCall = CapsUpdateInventoryItemAsset;
             cap.TaskScriptUpdatedCall = CapsUpdateTaskInventoryScriptAsset;
             cap.CAPSFetchInventoryDescendents = CommsManager.UserProfileCacheService.HandleFetchInventoryDescendentsCAPS;
-            cap.CAPSGetUserDetails = CommsManager.UserProfileCacheService.GetUserDetails;
 
             m_capsHandlers[agentId] = cap;
         } 
@@ -1764,6 +1764,8 @@ namespace OpenSim.Region.Environment.Scenes
                         agentId, RegionInfo.RegionName);
                     
                     m_capsHandlers[agentId].DeregisterHandlers();
+                    EventManager.TriggerOnDeregisterCaps(agentId, m_capsHandlers[agentId]);
+
                     m_capsHandlers.Remove(agentId);
                 }
                 else
diff --git a/OpenSim/Region/Environment/Scenes/SceneEvents.cs b/OpenSim/Region/Environment/Scenes/SceneEvents.cs
index 809507c..c916009 100644
--- a/OpenSim/Region/Environment/Scenes/SceneEvents.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneEvents.cs
@@ -29,6 +29,7 @@ using libsecondlife;
 using System;
 using OpenSim.Framework;
 using OpenSim.Region.Environment.Interfaces;
+using Caps = OpenSim.Region.Capabilities.Caps;
 
 namespace OpenSim.Region.Environment.Scenes
 {
@@ -136,6 +137,19 @@ namespace OpenSim.Region.Environment.Scenes
 
         public event OnNewPresenceDelegate OnMakeChildAgent;
 
+        /// <summary>
+        /// RegisterCapsEvent is called by Scene after the Caps object
+        /// has been instantiated and before it is return to the
+        /// client and provides region modules to add their caps.
+        /// </summary>
+        public delegate void RegisterCapsEvent(LLUUID agentID, Caps caps);
+        public event RegisterCapsEvent OnRegisterCaps;
+        /// <summary>
+        /// DeregisterCapsEvent is called by Scene when the caps
+        /// handler for an agent are removed.
+        /// </summary>
+        public delegate void DeregisterCapsEvent(LLUUID agentID, Caps caps);
+        public event DeregisterCapsEvent OnDeregisterCaps;
 
         public class MoneyTransferArgs : System.EventArgs 
         {
@@ -191,6 +205,8 @@ namespace OpenSim.Region.Environment.Scenes
         private ClientClosed handlerClientClosed = null; //OnClientClosed;
         private OnNewPresenceDelegate handlerMakeChildAgent = null; //OnMakeChildAgent;
         private OnTerrainTickDelegate handlerTerrainTick = null; // OnTerainTick;
+        private RegisterCapsEvent handlerRegisterCaps = null; // OnRegisterCaps;
+        private DeregisterCapsEvent handlerDeregisterCaps = null; // OnDeregisterCaps;
 
         public void TriggerOnScriptChangedEvent(uint localID, uint change)
         {
@@ -428,5 +444,23 @@ namespace OpenSim.Region.Environment.Scenes
                 handlerMakeChildAgent(presence);
             }
         }
+
+        public void TriggerOnRegisterCaps(LLUUID agentID, Caps caps) 
+        {
+            handlerRegisterCaps = OnRegisterCaps;
+            if (handlerRegisterCaps != null)
+            {
+                handlerRegisterCaps(agentID, caps);
+            }
+        }
+
+        public void TriggerOnDeregisterCaps(LLUUID agentID, Caps caps) 
+        {
+            handlerDeregisterCaps = OnDeregisterCaps;
+            if (handlerDeregisterCaps != null)
+            {
+                handlerDeregisterCaps(agentID, caps);
+            }
+        }
     }
 }