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diff --git a/OpenSim/Region/Environment/Modules/Communications/REST/RESTInterregionComms.cs b/OpenSim/Region/Environment/Modules/Communications/REST/RESTInterregionComms.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSim Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27using System;
28using System.Collections;
29using System.Collections.Generic;
30using System.IO;
31using System.Net;
32using System.Net.Sockets;
33using System.Reflection;
34using System.Threading;
35using System.Xml;
36using OpenMetaverse;
37using OpenMetaverse.StructuredData;
38using log4net;
39using Nini.Config;
40using Nwc.XmlRpc;
41using OpenSim.Framework;
42using OpenSim.Framework.Communications;
43using OpenSim.Framework.Communications.Cache;
44using OpenSim.Region.Environment.Interfaces;
45using OpenSim.Region.Interfaces;
46using OpenSim.Region.Environment.Scenes;
47using OpenSim.Region.Environment.Modules.Communications.Local;
48
49namespace OpenSim.Region.Environment.Modules.Communications.REST
50{
51 public class RESTInterregionComms : IRegionModule, IInterregionCommsOut
52 {
53 private static bool initialized = false;
54 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
55
56 protected bool m_enabled = false;
57 protected Scene m_aScene;
58 // RESTInterregionComms does not care about local regions; it delegates that to the Local module
59 protected LocalInterregionComms m_localBackend;
60
61 protected CommunicationsManager m_commsManager;
62
63 #region IRegionModule
64
65 public virtual void Initialise(Scene scene, IConfigSource config)
66 {
67 if (!initialized)
68 {
69 initialized = true;
70 IConfig startupConfig = config.Configs["Communications"];
71 if ((startupConfig != null) && (startupConfig.GetString("InterregionComms", "LocalComms") == "RESTComms"))
72 {
73 m_enabled = true;
74 InitOnce(scene);
75 }
76 }
77
78 if (!m_enabled)
79 return;
80
81 InitEach(scene);
82
83 }
84
85 public virtual void PostInitialise()
86 {
87 if (m_enabled)
88 AddHTTPHandlers();
89 }
90
91 public virtual void Close()
92 {
93 }
94
95 public virtual string Name
96 {
97 get { return "RESTInterregionCommsModule"; }
98 }
99
100 public virtual bool IsSharedModule
101 {
102 get { return true; }
103 }
104
105 protected virtual void InitEach(Scene scene)
106 {
107 m_localBackend.Init(scene);
108 scene.RegisterModuleInterface<IInterregionCommsOut>(this);
109 }
110
111 protected virtual void InitOnce(Scene scene)
112 {
113 m_localBackend = new LocalInterregionComms();
114 m_commsManager = scene.CommsManager;
115 m_aScene = scene;
116 }
117
118 protected virtual void AddHTTPHandlers()
119 {
120 m_aScene.AddHTTPHandler("/ChildAgentUpdate/", ChildAgentUpdateHandler);
121 }
122
123 #endregion /* IRegionModule */
124
125 #region IInterregionComms
126
127 public bool SendChildAgentUpdate(ulong regionHandle, AgentData cAgentData)
128 {
129 // Try local first
130 if (m_localBackend.SendChildAgentUpdate(regionHandle, cAgentData))
131 return true;
132
133 // else do the remote thing
134 RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
135 if (regInfo != null)
136 {
137 return DoChildAgentUpdateCall(regInfo, cAgentData);
138 }
139
140 return false;
141
142 }
143
144 protected bool DoChildAgentUpdateCall(RegionInfo region, AgentData cAgentData)
145 {
146 string uri = "http://" + region.ExternalEndPoint.Address + ":" + region.HttpPort + "/ChildAgentUpdate/";
147 //Console.WriteLine(" >>> DoChildAgentUpdateCall <<< " + uri);
148
149 WebRequest ChildUpdateRequest = WebRequest.Create(uri);
150 ChildUpdateRequest.Method = "PUT";
151 ChildUpdateRequest.ContentType = "application/json";
152 ChildUpdateRequest.Timeout = 10000;
153
154 // Fill it in
155 OSDMap args = null;
156 try
157 {
158 args = cAgentData.PackUpdateMessage();
159 }
160 catch (Exception e)
161 {
162 m_log.Debug("[REST COMMS]: PackUpdateMessage failed with exception: " + e.Message);
163 }
164 // Add the regionhandle of the destination region
165 ulong regionHandle = GetRegionHandle(region);
166 args["destination_handle"] = OSD.FromString(regionHandle.ToString());
167
168 string strBuffer = "";
169 byte[] buffer = new byte[1];
170 try
171 {
172 strBuffer = OSDParser.SerializeJsonString(args);
173 System.Text.UTF8Encoding str = new System.Text.UTF8Encoding();
174 buffer = str.GetBytes(strBuffer);
175
176 }
177 catch (Exception e)
178 {
179 m_log.WarnFormat("[OSG2]: Exception thrown on serialization of ChildUpdate: {0}", e.Message);
180 // ignore. buffer will be empty, caller should check.
181 }
182
183 Stream os = null;
184 try
185 { // send the Post
186 ChildUpdateRequest.ContentLength = buffer.Length; //Count bytes to send
187 os = ChildUpdateRequest.GetRequestStream();
188 os.Write(buffer, 0, strBuffer.Length); //Send it
189 os.Close();
190 //m_log.InfoFormat("[REST COMMS]: Posted ChildAgentUpdate request to remote sim {0}", uri);
191 }
192 catch (WebException ex)
193 {
194 //m_log.InfoFormat("[REST COMMS]: Bad send on ChildAgentUpdate {0}", ex.Message);
195
196 return false;
197 }
198
199 // Let's wait for the response
200 //m_log.Info("[REST COMMS]: Waiting for a reply after ChildAgentUpdate");
201 string reply = null;
202 try
203 {
204 WebResponse webResponse = ChildUpdateRequest.GetResponse();
205 if (webResponse == null)
206 {
207 m_log.Info("[REST COMMS]: Null reply on ChilAgentUpdate post");
208 }
209
210 StreamReader sr = new StreamReader(webResponse.GetResponseStream());
211 reply = sr.ReadToEnd().Trim();
212 sr.Close();
213 //m_log.InfoFormat("[REST COMMS]: ChilAgentUpdate reply was {0} ", reply);
214
215 }
216 catch (WebException ex)
217 {
218 m_log.InfoFormat("[REST COMMS]: exception on reply of ChilAgentUpdate {0}", ex.Message);
219 // ignore, really
220 }
221
222 return true;
223
224 }
225
226 #endregion /* IInterregionComms */
227
228 #region Called from remote instances on this instance
229
230 public Hashtable ChildAgentUpdateHandler(Hashtable request)
231 {
232 //m_log.Debug("[CONNECTION DEBUGGING]: ChildDataUpdateHandler Called");
233
234 Hashtable responsedata = new Hashtable();
235 responsedata["content_type"] = "text/html";
236
237 OSDMap args = null;
238 try
239 {
240 OSD buffer;
241 // We should pay attention to the content-type, but let's assume we know it's Json
242 buffer = OSDParser.DeserializeJson((string)request["body"]);
243 if (buffer.Type == OSDType.Map)
244 args = (OSDMap)buffer;
245 else
246 {
247 // uh?
248 m_log.Debug("[REST COMMS]: Got OSD of type " + buffer.Type.ToString());
249 }
250 }
251 catch (Exception ex)
252 {
253 m_log.InfoFormat("[REST COMMS]: exception on parse of ChildAgentUpdate message {0}", ex.Message);
254 responsedata["int_response_code"] = 400;
255 responsedata["str_response_string"] = "false";
256
257 return responsedata;
258 }
259
260 // retrieve the regionhandle
261 ulong regionhandle = 0;
262 if (args["destination_handle"] != null)
263 UInt64.TryParse(args["destination_handle"].AsString(), out regionhandle);
264
265 AgentData agent = new AgentData();
266 try
267 {
268 agent.UnpackUpdateMessage(args);
269 }
270 catch (Exception ex)
271 {
272 m_log.InfoFormat("[REST COMMS]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
273 }
274 //agent.Dump();
275
276 bool result = m_localBackend.SendChildAgentUpdate(regionhandle, agent);
277
278
279 responsedata["int_response_code"] = 200;
280 responsedata["str_response_string"] = result.ToString();
281 return responsedata;
282 }
283
284 #endregion
285
286 #region Misc
287
288 protected virtual ulong GetRegionHandle(RegionInfo region)
289 {
290 return region.RegionHandle;
291 }
292
293 #endregion /* Misc */
294
295 }
296}