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- /*
- * 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 System.Net;
- using System.Net.Sockets;
- using System.Reflection;
- using System.Threading;
- using System.Xml;
- using OpenMetaverse;
- using OpenMetaverse.StructuredData;
- using log4net;
- using Nini.Config;
- using Nwc.XmlRpc;
- using OpenSim.Framework;
- using OpenSim.Framework.Communications;
- using OpenSim.Framework.Communications.Cache;
- using OpenSim.Region.Environment.Interfaces;
- using OpenSim.Region.Interfaces;
- using OpenSim.Region.Environment.Scenes;
- using OpenSim.Region.Environment.Modules.Communications.Local;
- namespace OpenSim.Region.Environment.Modules.Communications.REST
- {
- public class RESTInterregionComms : IRegionModule, IInterregionCommsOut
- {
- private static bool initialized = false;
- private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
- protected bool m_enabled = false;
- protected Scene m_aScene;
- // RESTInterregionComms does not care about local regions; it delegates that to the Local module
- protected LocalInterregionComms m_localBackend;
- protected CommunicationsManager m_commsManager;
- #region IRegionModule
- public virtual void Initialise(Scene scene, IConfigSource config)
- {
- if (!initialized)
- {
- initialized = true;
- IConfig startupConfig = config.Configs["Communications"];
- if ((startupConfig != null) && (startupConfig.GetString("InterregionComms", "RESTCommms") == "RESTComms"))
- {
- m_enabled = true;
- InitOnce(scene);
- }
- }
- if (!m_enabled)
- return;
- InitEach(scene);
- }
- public virtual void PostInitialise()
- {
- if (m_enabled)
- AddHTTPHandlers();
- }
- public virtual void Close()
- {
- }
- public virtual string Name
- {
- get { return "RESTInterregionCommsModule"; }
- }
- public virtual bool IsSharedModule
- {
- get { return true; }
- }
- protected virtual void InitEach(Scene scene)
- {
- m_localBackend.Init(scene);
- scene.RegisterModuleInterface<IInterregionCommsOut>(this);
- }
- protected virtual void InitOnce(Scene scene)
- {
- m_localBackend = new LocalInterregionComms();
- m_commsManager = scene.CommsManager;
- m_aScene = scene;
- }
- protected virtual void AddHTTPHandlers()
- {
- m_aScene.AddHTTPHandler("/ChildAgentUpdate/", ChildAgentUpdateHandler);
- }
- #endregion /* IRegionModule */
- #region IInterregionComms
- public bool SendChildAgentUpdate(ulong regionHandle, AgentData cAgentData)
- {
- // Try local first
- if (m_localBackend.SendChildAgentUpdate(regionHandle, cAgentData))
- return true;
- // else do the remote thing
- RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
- if (regInfo != null)
- {
- return DoChildAgentUpdateCall(regInfo, cAgentData);
- }
- return false;
- }
- protected bool DoChildAgentUpdateCall(RegionInfo region, AgentData cAgentData)
- {
- string uri = "http://" + region.ExternalEndPoint.Address + ":" + region.HttpPort + "/ChildAgentUpdate/";
- //Console.WriteLine(" >>> DoChildAgentUpdateCall <<< " + uri);
- WebRequest ChildUpdateRequest = WebRequest.Create(uri);
- ChildUpdateRequest.Method = "PUT";
- ChildUpdateRequest.ContentType = "application/json";
- ChildUpdateRequest.Timeout = 10000;
- // Fill it in
- OSDMap args = null;
- try
- {
- args = cAgentData.PackUpdateMessage();
- }
- catch (Exception e)
- {
- m_log.Debug("[REST COMMS]: PackUpdateMessage failed with exception: " + e.Message);
- }
- // Add the regionhandle of the destination region
- ulong regionHandle = GetRegionHandle(region);
- args["destination_handle"] = OSD.FromString(regionHandle.ToString());
- string strBuffer = "";
- byte[] buffer = new byte[1];
- try
- {
- strBuffer = OSDParser.SerializeJsonString(args);
- System.Text.UTF8Encoding str = new System.Text.UTF8Encoding();
- buffer = str.GetBytes(strBuffer);
- }
- catch (Exception e)
- {
- m_log.WarnFormat("[OSG2]: Exception thrown on serialization of ChildUpdate: {0}", e.Message);
- // ignore. buffer will be empty, caller should check.
- }
- Stream os = null;
- try
- { // send the Post
- ChildUpdateRequest.ContentLength = buffer.Length; //Count bytes to send
- os = ChildUpdateRequest.GetRequestStream();
- os.Write(buffer, 0, strBuffer.Length); //Send it
- os.Close();
- //m_log.InfoFormat("[REST COMMS]: Posted ChildAgentUpdate request to remote sim {0}", uri);
- }
- catch (WebException ex)
- {
- //m_log.InfoFormat("[REST COMMS]: Bad send on ChildAgentUpdate {0}", ex.Message);
- return false;
- }
- // Let's wait for the response
- //m_log.Info("[REST COMMS]: Waiting for a reply after ChildAgentUpdate");
- string reply = null;
- try
- {
- WebResponse webResponse = ChildUpdateRequest.GetResponse();
- if (webResponse == null)
- {
- m_log.Info("[REST COMMS]: Null reply on ChilAgentUpdate post");
- }
- StreamReader sr = new StreamReader(webResponse.GetResponseStream());
- reply = sr.ReadToEnd().Trim();
- sr.Close();
- //m_log.InfoFormat("[REST COMMS]: ChilAgentUpdate reply was {0} ", reply);
- }
- catch (WebException ex)
- {
- m_log.InfoFormat("[REST COMMS]: exception on reply of ChilAgentUpdate {0}", ex.Message);
- // ignore, really
- }
- return true;
- }
- #endregion /* IInterregionComms */
- #region Called from remote instances on this instance
- public Hashtable ChildAgentUpdateHandler(Hashtable request)
- {
- //m_log.Debug("[CONNECTION DEBUGGING]: ChildDataUpdateHandler Called");
- Hashtable responsedata = new Hashtable();
- responsedata["content_type"] = "text/html";
- OSDMap args = null;
- try
- {
- OSD buffer;
- // We should pay attention to the content-type, but let's assume we know it's Json
- buffer = OSDParser.DeserializeJson((string)request["body"]);
- if (buffer.Type == OSDType.Map)
- args = (OSDMap)buffer;
- else
- {
- // uh?
- m_log.Debug("[REST COMMS]: Got OSD of type " + buffer.Type.ToString());
- }
- }
- catch (Exception ex)
- {
- m_log.InfoFormat("[REST COMMS]: exception on parse of ChildAgentUpdate message {0}", ex.Message);
- responsedata["int_response_code"] = 400;
- responsedata["str_response_string"] = "false";
- return responsedata;
- }
- // retrieve the regionhandle
- ulong regionhandle = 0;
- if (args["destination_handle"] != null)
- UInt64.TryParse(args["destination_handle"].AsString(), out regionhandle);
- AgentData agent = new AgentData();
- try
- {
- agent.UnpackUpdateMessage(args);
- }
- catch (Exception ex)
- {
- m_log.InfoFormat("[REST COMMS]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
- }
- //agent.Dump();
- bool result = m_localBackend.SendChildAgentUpdate(regionhandle, agent);
- responsedata["int_response_code"] = 200;
- responsedata["str_response_string"] = result.ToString();
- return responsedata;
- }
- #endregion
- #region Misc
- protected virtual ulong GetRegionHandle(RegionInfo region)
- {
- return region.RegionHandle;
- }
- #endregion /* Misc */
- }
- }
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