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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 OpenSimulator 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 */
27
28using System;
29using System.Collections.Generic;
30using System.IO;
31using System.Net;
32using System.Reflection;
33using System.Text;
34using System.Collections;
35
36using OpenSim.Framework;
37using OpenSim.Services.Interfaces;
38using GridRegion = OpenSim.Services.Interfaces.GridRegion;
39
40using OpenMetaverse;
41using OpenMetaverse.StructuredData;
42using log4net;
43using Nini.Config;
44
45namespace OpenSim.Services.Connectors.Simulation
46{
47 public class SimulationServiceConnector : ISimulationService
48 {
49 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
50
51 // we use this dictionary to track the pending updateagent requests, maps URI --> position update
52 private Dictionary<string,AgentPosition> m_updateAgentQueue = new Dictionary<string,AgentPosition>();
53
54 //private GridRegion m_Region;
55
56 public SimulationServiceConnector()
57 {
58 }
59
60 public SimulationServiceConnector(IConfigSource config)
61 {
62 //m_Region = region;
63 }
64
65 public IScene GetScene(UUID regionId)
66 {
67 return null;
68 }
69
70 public ISimulationService GetInnerService()
71 {
72 return null;
73 }
74
75 #region Agents
76
77 protected virtual string AgentPath()
78 {
79 return "agent/";
80 }
81
82 protected virtual void PackData(OSDMap args, GridRegion source, AgentCircuitData aCircuit, GridRegion destination, uint flags)
83 {
84 if (source != null)
85 {
86 args["source_x"] = OSD.FromString(source.RegionLocX.ToString());
87 args["source_y"] = OSD.FromString(source.RegionLocY.ToString());
88 args["source_name"] = OSD.FromString(source.RegionName);
89 args["source_uuid"] = OSD.FromString(source.RegionID.ToString());
90 if (!String.IsNullOrEmpty(source.RawServerURI))
91 args["source_server_uri"] = OSD.FromString(source.RawServerURI);
92 }
93
94 args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
95 args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
96 args["destination_name"] = OSD.FromString(destination.RegionName);
97 args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
98 args["teleport_flags"] = OSD.FromString(flags.ToString());
99 }
100
101 public bool CreateAgent(GridRegion source, GridRegion destination, AgentCircuitData aCircuit, uint flags, out string reason)
102 {
103 string tmp = String.Empty;
104 return CreateAgent(source, destination, aCircuit, flags, out tmp, out reason);
105 }
106
107 public bool CreateAgent(GridRegion source, GridRegion destination, AgentCircuitData aCircuit, uint flags, out string myipaddress, out string reason)
108 {
109 m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: Creating agent at {0}", destination.ServerURI);
110 reason = String.Empty;
111 myipaddress = String.Empty;
112
113 if (destination == null)
114 {
115 m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Given destination is null");
116 return false;
117 }
118
119 string uri = destination.ServerURI + AgentPath() + aCircuit.AgentID + "/";
120
121 try
122 {
123 OSDMap args = aCircuit.PackAgentCircuitData();
124 PackData(args, source, aCircuit, destination, flags);
125
126 OSDMap result = WebUtil.PostToServiceCompressed(uri, args, 30000);
127 bool success = result["success"].AsBoolean();
128 if (success && result.ContainsKey("_Result"))
129 {
130 OSDMap data = (OSDMap)result["_Result"];
131
132 reason = data["reason"].AsString();
133 success = data["success"].AsBoolean();
134 myipaddress = data["your_ip"].AsString();
135 return success;
136 }
137
138 // Try the old version, uncompressed
139 result = WebUtil.PostToService(uri, args, 30000, false);
140
141 if (result["Success"].AsBoolean())
142 {
143 if (result.ContainsKey("_Result"))
144 {
145 OSDMap data = (OSDMap)result["_Result"];
146
147 reason = data["reason"].AsString();
148 success = data["success"].AsBoolean();
149 myipaddress = data["your_ip"].AsString();
150 m_log.WarnFormat(
151 "[REMOTE SIMULATION CONNECTOR]: Remote simulator {0} did not accept compressed transfer, suggest updating it.", destination.RegionName);
152 return success;
153 }
154 }
155
156 m_log.WarnFormat(
157 "[REMOTE SIMULATION CONNECTOR]: Failed to create agent {0} {1} at remote simulator {2}",
158 aCircuit.firstname, aCircuit.lastname, destination.RegionName);
159 reason = result["Message"] != null ? result["Message"].AsString() : "error";
160 return false;
161 }
162 catch (Exception e)
163 {
164 m_log.Warn("[REMOTE SIMULATION CONNECTOR]: CreateAgent failed with exception: " + e.ToString());
165 reason = e.Message;
166 }
167
168 return false;
169 }
170
171 /// <summary>
172 /// Send complete data about an agent in this region to a neighbor
173 /// </summary>
174 public bool UpdateAgent(GridRegion destination, AgentData data)
175 {
176 return UpdateAgent(destination, (IAgentData)data, 200000); // yes, 200 seconds
177 }
178
179 private ExpiringCache<string, bool> _failedSims = new ExpiringCache<string, bool>();
180 /// <summary>
181 /// Send updated position information about an agent in this region to a neighbor
182 /// This operation may be called very frequently if an avatar is moving about in
183 /// the region.
184 /// </summary>
185 public bool UpdateAgent(GridRegion destination, AgentPosition data)
186 {
187 bool v = true;
188 if (_failedSims.TryGetValue(destination.ServerURI, out v))
189 return false;
190
191 // The basic idea of this code is that the first thread that needs to
192 // send an update for a specific avatar becomes the worker for any subsequent
193 // requests until there are no more outstanding requests. Further, only send the most
194 // recent update; this *should* never be needed but some requests get
195 // slowed down and once that happens the problem with service end point
196 // limits kicks in and nothing proceeds
197 string uri = destination.ServerURI + AgentPath() + data.AgentID + "/";
198 lock (m_updateAgentQueue)
199 {
200 if (m_updateAgentQueue.ContainsKey(uri))
201 {
202 // Another thread is already handling
203 // updates for this simulator, just update
204 // the position and return, overwrites are
205 // not a problem since we only care about the
206 // last update anyway
207 m_updateAgentQueue[uri] = data;
208 return true;
209 }
210
211 // Otherwise update the reference and start processing
212 m_updateAgentQueue[uri] = data;
213 }
214
215 AgentPosition pos = null;
216 bool success = true;
217 while (success)
218 {
219 lock (m_updateAgentQueue)
220 {
221 // save the position
222 AgentPosition lastpos = pos;
223
224 pos = m_updateAgentQueue[uri];
225
226 // this is true if no one put a new
227 // update in the map since the last
228 // one we processed, if thats the
229 // case then we are done
230 if (pos == lastpos)
231 {
232 m_updateAgentQueue.Remove(uri);
233 return true;
234 }
235 }
236
237 success = UpdateAgent(destination, (IAgentData)pos, 10000);
238 }
239 // we get here iff success == false
240 // blacklist sim for 2 minutes
241 lock (m_updateAgentQueue)
242 {
243 _failedSims.AddOrUpdate(destination.ServerURI, true, 120);
244 m_updateAgentQueue.Remove(uri);
245 }
246 return false;
247 }
248
249 /// <summary>
250 /// This is the worker function to send AgentData to a neighbor region
251 /// </summary>
252 private bool UpdateAgent(GridRegion destination, IAgentData cAgentData, int timeout)
253 {
254 // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: UpdateAgent in {0}", destination.ServerURI);
255
256 // Eventually, we want to use a caps url instead of the agentID
257 string uri = destination.ServerURI + AgentPath() + cAgentData.AgentID + "/";
258
259 try
260 {
261 OSDMap args = cAgentData.Pack();
262
263 args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
264 args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
265 args["destination_name"] = OSD.FromString(destination.RegionName);
266 args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
267
268 OSDMap result = WebUtil.PutToServiceCompressed(uri, args, timeout);
269 if (result["Success"].AsBoolean())
270 return true;
271
272 result = WebUtil.PutToService(uri, args, timeout);
273
274 return result["Success"].AsBoolean();
275 }
276 catch (Exception e)
277 {
278 m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString());
279 }
280
281 return false;
282 }
283
284
285 public bool QueryAccess(GridRegion destination, UUID agentID, string agentHomeURI, bool viaTeleport, Vector3 position, string myversion, List<UUID> featuresAvailable, out string version, out string reason)
286 {
287 reason = "Failed to contact destination";
288 version = "Unknown";
289
290 // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: QueryAccess start, position={0}", position);
291
292 IPEndPoint ext = destination.ExternalEndPoint;
293 if (ext == null) return false;
294
295 // Eventually, we want to use a caps url instead of the agentID
296 string uri = destination.ServerURI + AgentPath() + agentID + "/" + destination.RegionID.ToString() + "/";
297
298 OSDMap request = new OSDMap();
299 request.Add("viaTeleport", OSD.FromBoolean(viaTeleport));
300 request.Add("position", OSD.FromString(position.ToString()));
301 request.Add("my_version", OSD.FromString(myversion));
302
303 OSDArray features = new OSDArray();
304 foreach (UUID feature in featuresAvailable)
305 features.Add(OSD.FromString(feature.ToString()));
306
307 request.Add("features", features);
308
309 if (agentHomeURI != null)
310 request.Add("agent_home_uri", OSD.FromString(agentHomeURI));
311
312 try
313 {
314 OSDMap result = WebUtil.ServiceOSDRequest(uri, request, "QUERYACCESS", 30000, false, false);
315 bool success = result["success"].AsBoolean();
316 if (result.ContainsKey("_Result"))
317 {
318 OSDMap data = (OSDMap)result["_Result"];
319
320 // FIXME: If there is a _Result map then it's the success key here that indicates the true success
321 // or failure, not the sibling result node.
322 success = data["success"];
323
324 reason = data["reason"].AsString();
325 if (data["version"] != null && data["version"].AsString() != string.Empty)
326 version = data["version"].AsString();
327
328 m_log.DebugFormat(
329 "[REMOTE SIMULATION CONNECTOR]: QueryAccess to {0} returned {1}, reason {2}, version {3} ({4})",
330 uri, success, reason, version, data["version"].AsString());
331 }
332
333 if (!success)
334 {
335 // If we don't check this then OpenSimulator 0.7.3.1 and some period before will never see the
336 // actual failure message
337 if (!result.ContainsKey("_Result"))
338 {
339 if (result.ContainsKey("Message"))
340 {
341 string message = result["Message"].AsString();
342 if (message == "Service request failed: [MethodNotAllowed] MethodNotAllowed") // Old style region
343 {
344 m_log.Info("[REMOTE SIMULATION CONNECTOR]: The above web util error was caused by a TP to a sim that doesn't support QUERYACCESS and can be ignored");
345 return true;
346 }
347
348 reason = result["Message"];
349 }
350 else
351 {
352 reason = "Communications failure";
353 }
354 }
355
356 return false;
357 }
358
359
360 featuresAvailable.Clear();
361
362 if (result.ContainsKey("features"))
363 {
364 OSDArray array = (OSDArray)result["features"];
365
366 foreach (OSD o in array)
367 featuresAvailable.Add(new UUID(o.AsString()));
368 }
369
370 return success;
371 }
372 catch (Exception e)
373 {
374 m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] QueryAcesss failed with exception; {0}",e.ToString());
375 }
376
377 return false;
378 }
379
380 /// <summary>
381 /// </summary>
382 public bool ReleaseAgent(UUID origin, UUID id, string uri)
383 {
384 // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: ReleaseAgent start");
385
386 try
387 {
388 WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000, false, false);
389 }
390 catch (Exception e)
391 {
392 m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] ReleaseAgent failed with exception; {0}",e.ToString());
393 }
394
395 return true;
396 }
397
398 /// <summary>
399 /// </summary>
400 public bool CloseAgent(GridRegion destination, UUID id, string auth_code)
401 {
402 string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/?auth=" + auth_code;
403 m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CloseAgent {0}", uri);
404
405 try
406 {
407 WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000, false, false);
408 }
409 catch (Exception e)
410 {
411 m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CloseAgent failed with exception; {0}",e.ToString());
412 }
413
414 return true;
415 }
416
417 #endregion Agents
418
419 #region Objects
420
421 protected virtual string ObjectPath()
422 {
423 return "object/";
424 }
425
426 /// <summary>
427 ///
428 /// </summary>
429 public bool CreateObject(GridRegion destination, Vector3 newPosition, ISceneObject sog, bool isLocalCall)
430 {
431 // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CreateObject start");
432
433 string uri = destination.ServerURI + ObjectPath() + sog.UUID + "/";
434
435 try
436 {
437 OSDMap args = new OSDMap(2);
438
439 args["sog"] = OSD.FromString(sog.ToXml2());
440 args["extra"] = OSD.FromString(sog.ExtraToXmlString());
441 args["modified"] = OSD.FromBoolean(sog.HasGroupChanged);
442 args["new_position"] = newPosition.ToString();
443
444 string state = sog.GetStateSnapshot();
445 if (state.Length > 0)
446 args["state"] = OSD.FromString(state);
447
448 // Add the input general arguments
449 args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
450 args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
451 args["destination_name"] = OSD.FromString(destination.RegionName);
452 args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
453
454 OSDMap result = WebUtil.PostToService(uri, args, 40000, false);
455
456 if (result == null)
457 return false;
458 bool success = result["success"].AsBoolean();
459 if (!success)
460 return false;
461 }
462 catch (Exception e)
463 {
464 m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CreateObject failed with exception; {0}",e.ToString());
465 return false;
466 }
467
468 return true;
469 }
470
471 /// <summary>
472 ///
473 /// </summary>
474 public bool CreateObject(GridRegion destination, UUID userID, UUID itemID)
475 {
476 // TODO, not that urgent
477 return false;
478 }
479
480 #endregion Objects
481 }
482}