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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 */
27
28using System;
29using System.Collections.Generic;
30using System.Net;
31using System.Reflection;
32using System.Threading;
33using OpenMetaverse;
34using OpenMetaverse.StructuredData;
35using log4net;
36using OpenSim.Framework;
37using OpenSim.Framework.Communications;
38using OpenSim.Framework.Communications.Capabilities;
39using OpenSim.Region.Framework.Interfaces;
40using OSD = OpenMetaverse.StructuredData.OSD;
41
42namespace OpenSim.Region.Framework.Scenes
43{
44 public delegate void KiPrimitiveDelegate(uint localID);
45
46 public delegate void RemoveKnownRegionsFromAvatarList(UUID avatarID, List<ulong> regionlst);
47
48 public class SceneCommunicationService //one instance per region
49 {
50 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
51
52 protected CommunicationsManager m_commsProvider;
53 protected IInterregionCommsOut m_interregionCommsOut;
54 protected RegionInfo m_regionInfo;
55
56 protected RegionCommsListener regionCommsHost;
57
58 protected List<UUID> m_agentsInTransit;
59
60 public event AgentCrossing OnAvatarCrossingIntoRegion;
61 public event ExpectUserDelegate OnExpectUser;
62 public event ExpectPrimDelegate OnExpectPrim;
63 public event CloseAgentConnection OnCloseAgentConnection;
64 public event PrimCrossing OnPrimCrossingIntoRegion;
65 public event RegionUp OnRegionUp;
66 public event ChildAgentUpdate OnChildAgentUpdate;
67 //public event RemoveKnownRegionsFromAvatarList OnRemoveKnownRegionFromAvatar;
68 public event LogOffUser OnLogOffUser;
69 public event GetLandData OnGetLandData;
70
71 private AgentCrossing handlerAvatarCrossingIntoRegion = null; // OnAvatarCrossingIntoRegion;
72 private ExpectUserDelegate handlerExpectUser = null; // OnExpectUser;
73 private ExpectPrimDelegate handlerExpectPrim = null; // OnExpectPrim;
74 private CloseAgentConnection handlerCloseAgentConnection = null; // OnCloseAgentConnection;
75 private PrimCrossing handlerPrimCrossingIntoRegion = null; // OnPrimCrossingIntoRegion;
76 private RegionUp handlerRegionUp = null; // OnRegionUp;
77 private ChildAgentUpdate handlerChildAgentUpdate = null; // OnChildAgentUpdate;
78 //private RemoveKnownRegionsFromAvatarList handlerRemoveKnownRegionFromAvatar = null; // OnRemoveKnownRegionFromAvatar;
79 private LogOffUser handlerLogOffUser = null;
80 private GetLandData handlerGetLandData = null; // OnGetLandData
81
82 public KiPrimitiveDelegate KiPrimitive;
83
84 public SceneCommunicationService(CommunicationsManager commsMan)
85 {
86 m_commsProvider = commsMan;
87 m_agentsInTransit = new List<UUID>();
88 }
89
90 /// <summary>
91 /// Register a region with the grid
92 /// </summary>
93 /// <param name="regionInfos"></param>
94 /// <exception cref="System.Exception">Thrown if region registration fails.</exception>
95 public void RegisterRegion(IInterregionCommsOut comms_out, RegionInfo regionInfos)
96 {
97 m_interregionCommsOut = comms_out;
98
99 m_regionInfo = regionInfos;
100 m_commsProvider.GridService.gdebugRegionName = regionInfos.RegionName;
101 m_commsProvider.InterRegion.rdebugRegionName = regionInfos.RegionName;
102 regionCommsHost = m_commsProvider.GridService.RegisterRegion(m_regionInfo);
103
104 if (regionCommsHost != null)
105 {
106 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: registered with gridservice and got" + regionCommsHost.ToString());
107
108 regionCommsHost.debugRegionName = regionInfos.RegionName;
109 regionCommsHost.OnExpectPrim += IncomingPrimCrossing;
110 regionCommsHost.OnExpectUser += NewUserConnection;
111 regionCommsHost.OnAvatarCrossingIntoRegion += AgentCrossing;
112 regionCommsHost.OnCloseAgentConnection += CloseConnection;
113 regionCommsHost.OnRegionUp += newRegionUp;
114 regionCommsHost.OnChildAgentUpdate += ChildAgentUpdate;
115 regionCommsHost.OnLogOffUser += GridLogOffUser;
116 regionCommsHost.OnGetLandData += FetchLandData;
117 }
118 else
119 {
120 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: registered with gridservice and got null");
121 }
122 }
123
124 public RegionInfo RequestClosestRegion(string name)
125 {
126 return m_commsProvider.GridService.RequestClosestRegion(name);
127 }
128
129 public void Close()
130 {
131 if (regionCommsHost != null)
132 {
133 regionCommsHost.OnLogOffUser -= GridLogOffUser;
134 regionCommsHost.OnChildAgentUpdate -= ChildAgentUpdate;
135 regionCommsHost.OnRegionUp -= newRegionUp;
136 regionCommsHost.OnExpectUser -= NewUserConnection;
137 regionCommsHost.OnExpectPrim -= IncomingPrimCrossing;
138 regionCommsHost.OnAvatarCrossingIntoRegion -= AgentCrossing;
139 regionCommsHost.OnCloseAgentConnection -= CloseConnection;
140 regionCommsHost.OnGetLandData -= FetchLandData;
141
142 try
143 {
144 m_commsProvider.GridService.DeregisterRegion(m_regionInfo);
145 }
146 catch (Exception e)
147 {
148 m_log.ErrorFormat(
149 "[GRID]: Deregistration of region {0} from the grid failed - {1}. Continuing",
150 m_regionInfo.RegionName, e);
151 }
152
153 regionCommsHost = null;
154 }
155 }
156
157 #region CommsManager Event handlers
158
159 /// <summary>
160 ///
161 /// </summary>
162 /// <param name="regionHandle"></param>
163 /// <param name="agent"></param>
164 ///
165 protected void NewUserConnection(AgentCircuitData agent)
166 {
167 handlerExpectUser = OnExpectUser;
168 if (handlerExpectUser != null)
169 {
170 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: OnExpectUser Fired for User:" + agent.firstname + " " + agent.lastname);
171 handlerExpectUser(agent);
172 }
173 }
174
175 protected void GridLogOffUser(UUID AgentID, UUID RegionSecret, string message)
176 {
177 handlerLogOffUser = OnLogOffUser;
178 if (handlerLogOffUser != null)
179 {
180 handlerLogOffUser(AgentID, RegionSecret, message);
181 }
182 }
183
184 protected bool newRegionUp(RegionInfo region)
185 {
186 handlerRegionUp = OnRegionUp;
187 if (handlerRegionUp != null)
188 {
189 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: newRegionUp Fired for User:" + region.RegionName);
190 handlerRegionUp(region);
191 }
192 return true;
193 }
194
195 protected bool ChildAgentUpdate(ChildAgentDataUpdate cAgentData)
196 {
197 handlerChildAgentUpdate = OnChildAgentUpdate;
198 if (handlerChildAgentUpdate != null)
199 handlerChildAgentUpdate(cAgentData);
200
201
202 return true;
203 }
204
205 protected void AgentCrossing(UUID agentID, Vector3 position, bool isFlying)
206 {
207 handlerAvatarCrossingIntoRegion = OnAvatarCrossingIntoRegion;
208 if (handlerAvatarCrossingIntoRegion != null)
209 {
210 handlerAvatarCrossingIntoRegion(agentID, position, isFlying);
211 }
212 }
213
214 protected bool IncomingPrimCrossing(UUID primID, String objXMLData, int XMLMethod)
215 {
216 handlerExpectPrim = OnExpectPrim;
217 if (handlerExpectPrim != null)
218 {
219 return handlerExpectPrim(primID, objXMLData, XMLMethod);
220 }
221 else
222 {
223 return false;
224 }
225
226 }
227
228 protected void PrimCrossing(UUID primID, Vector3 position, bool isPhysical)
229 {
230 handlerPrimCrossingIntoRegion = OnPrimCrossingIntoRegion;
231 if (handlerPrimCrossingIntoRegion != null)
232 {
233 handlerPrimCrossingIntoRegion(primID, position, isPhysical);
234 }
235 }
236
237 protected bool CloseConnection(UUID agentID)
238 {
239 m_log.Debug("[INTERREGION]: Incoming Agent Close Request for agent: " + agentID);
240
241 handlerCloseAgentConnection = OnCloseAgentConnection;
242 if (handlerCloseAgentConnection != null)
243 {
244 return handlerCloseAgentConnection(agentID);
245 }
246
247 return false;
248 }
249
250 protected LandData FetchLandData(uint x, uint y)
251 {
252 handlerGetLandData = OnGetLandData;
253 if (handlerGetLandData != null)
254 {
255 return handlerGetLandData(x, y);
256 }
257 return null;
258 }
259
260 #endregion
261
262 #region Inform Client of Neighbours
263
264 private delegate void InformClientOfNeighbourDelegate(
265 ScenePresence avatar, AgentCircuitData a, SimpleRegionInfo reg, IPEndPoint endPoint, bool newAgent);
266
267 private void InformClientOfNeighbourCompleted(IAsyncResult iar)
268 {
269 InformClientOfNeighbourDelegate icon = (InformClientOfNeighbourDelegate) iar.AsyncState;
270 icon.EndInvoke(iar);
271 }
272
273 /// <summary>
274 /// Async component for informing client of which neighbours exist
275 /// </summary>
276 /// <remarks>
277 /// This needs to run asynchronesously, as a network timeout may block the thread for a long while
278 /// </remarks>
279 /// <param name="remoteClient"></param>
280 /// <param name="a"></param>
281 /// <param name="regionHandle"></param>
282 /// <param name="endPoint"></param>
283 private void InformClientOfNeighbourAsync(ScenePresence avatar, AgentCircuitData a, SimpleRegionInfo reg,
284 IPEndPoint endPoint, bool newAgent)
285 {
286 // Let's wait just a little to give time to originating regions to catch up with closing child agents
287 // after a cross here
288 Thread.Sleep(500);
289
290 uint x, y;
291 Utils.LongToUInts(reg.RegionHandle, out x, out y);
292 x = x / Constants.RegionSize;
293 y = y / Constants.RegionSize;
294 m_log.Info("[INTERGRID]: Starting to inform client about neighbour " + x + ", " + y + "(" + endPoint.ToString() + ")");
295
296 string capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
297 + "/CAPS/" + a.CapsPath + "0000/";
298
299 //bool regionAccepted = m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, a);
300 bool regionAccepted = m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, a);
301
302 if (regionAccepted && newAgent)
303 {
304 IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();
305 if (eq != null)
306 {
307 eq.EnableSimulator(reg.RegionHandle, endPoint, avatar.UUID);
308 eq.EstablishAgentCommunication(avatar.UUID, endPoint, capsPath);
309 m_log.DebugFormat("[CAPS]: Sending new CAPS seed url {0} to client {1} in region {2}",
310 capsPath, avatar.UUID, avatar.Scene.RegionInfo.RegionName);
311 }
312 else
313 {
314 avatar.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
315 // TODO: make Event Queue disablable!
316 }
317
318 m_log.Info("[INTERGRID]: Completed inform client about neighbour " + endPoint.ToString());
319 }
320 }
321
322 public void RequestNeighbors(RegionInfo region)
323 {
324 // List<SimpleRegionInfo> neighbours =
325 m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
326 //IPEndPoint blah = new IPEndPoint();
327
328 //blah.Address = region.RemotingAddress;
329 //blah.Port = region.RemotingPort;
330 }
331
332 /// <summary>
333 /// This informs all neighboring regions about agent "avatar".
334 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
335 /// </summary>
336 public void EnableNeighbourChildAgents(ScenePresence avatar, List<RegionInfo> lstneighbours)
337 {
338 List<SimpleRegionInfo> neighbours = new List<SimpleRegionInfo>();
339
340 //m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
341 for (int i = 0; i < lstneighbours.Count; i++)
342 {
343 // We don't want to keep sending to regions that consistently fail on comms.
344 if (!(lstneighbours[i].commFailTF))
345 {
346 neighbours.Add(new SimpleRegionInfo(lstneighbours[i]));
347 }
348 }
349 // we're going to be using the above code once neighbour cache is correct. Currently it doesn't appear to be
350 // So we're temporarily going back to the old method of grabbing it from the Grid Server Every time :/
351 neighbours =
352 m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
353
354 /// We need to find the difference between the new regions where there are no child agents
355 /// and the regions where there are already child agents. We only send notification to the former.
356 List<ulong> neighbourHandles = NeighbourHandles(neighbours); // on this region
357 neighbourHandles.Add(avatar.Scene.RegionInfo.RegionHandle); // add this region too
358 List<ulong> previousRegionNeighbourHandles
359 = new List<ulong>(avatar.Scene.CapsModule.GetChildrenSeeds(avatar.UUID).Keys);
360 List<ulong> newRegions = NewNeighbours(neighbourHandles, previousRegionNeighbourHandles);
361 List<ulong> oldRegions = OldNeighbours(neighbourHandles, previousRegionNeighbourHandles);
362
363 //Dump("Current Neighbors", neighbourHandles);
364 //Dump("Previous Neighbours", previousRegionNeighbourHandles);
365 //Dump("New Neighbours", newRegions);
366 //Dump("Old Neighbours", oldRegions);
367
368 /// Update the scene presence's known regions here on this region
369 avatar.DropOldNeighbours(oldRegions);
370
371 /// Collect as many seeds as possible
372 Dictionary<ulong, string> seeds
373 = new Dictionary<ulong, string>(avatar.Scene.CapsModule.GetChildrenSeeds(avatar.UUID));
374
375 //Console.WriteLine(" !!! No. of seeds: " + seeds.Count);
376 if (!seeds.ContainsKey(avatar.Scene.RegionInfo.RegionHandle))
377 seeds.Add(avatar.Scene.RegionInfo.RegionHandle, avatar.ControllingClient.RequestClientInfo().CapsPath);
378
379 /// Create the necessary child agents
380 List<AgentCircuitData> cagents = new List<AgentCircuitData>();
381 foreach (SimpleRegionInfo neighbour in neighbours)
382 {
383 if (neighbour.RegionHandle != avatar.Scene.RegionInfo.RegionHandle)
384 {
385
386 AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
387 agent.BaseFolder = UUID.Zero;
388 agent.InventoryFolder = UUID.Zero;
389 agent.startpos = new Vector3(128, 128, 70);
390 agent.child = true;
391
392 if (newRegions.Contains(neighbour.RegionHandle))
393 {
394 agent.CapsPath = CapsUtil.GetRandomCapsObjectPath();
395 avatar.AddNeighbourRegion(neighbour.RegionHandle, agent.CapsPath);
396 seeds.Add(neighbour.RegionHandle, agent.CapsPath);
397 }
398 else
399 agent.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, neighbour.RegionHandle);
400
401 cagents.Add(agent);
402 }
403 }
404
405 /// Update all child agent with everyone's seeds
406 foreach (AgentCircuitData a in cagents)
407 {
408 a.ChildrenCapSeeds = new Dictionary<ulong, string>(seeds);
409 }
410 // These two are the same thing!
411 avatar.Scene.CapsModule.SetChildrenSeed(avatar.UUID, seeds);
412 avatar.KnownRegions = seeds;
413 //avatar.Scene.DumpChildrenSeeds(avatar.UUID);
414 //avatar.DumpKnownRegions();
415
416 bool newAgent = false;
417 int count = 0;
418 foreach (SimpleRegionInfo neighbour in neighbours)
419 {
420 // Don't do it if there's already an agent in that region
421 if (newRegions.Contains(neighbour.RegionHandle))
422 newAgent = true;
423 else
424 newAgent = false;
425
426 if (neighbour.RegionHandle != avatar.Scene.RegionInfo.RegionHandle)
427 {
428 InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
429 try
430 {
431 d.BeginInvoke(avatar, cagents[count], neighbour, neighbour.ExternalEndPoint, newAgent,
432 InformClientOfNeighbourCompleted,
433 d);
434 }
435 catch (Exception e)
436 {
437 m_log.ErrorFormat(
438 "[REGIONINFO]: Could not resolve external hostname {0} for region {1} ({2}, {3}). {4}",
439 neighbour.ExternalHostName,
440 neighbour.RegionHandle,
441 neighbour.RegionLocX,
442 neighbour.RegionLocY,
443 e);
444
445 // FIXME: Okay, even though we've failed, we're still going to throw the exception on,
446 // since I don't know what will happen if we just let the client continue
447
448 // XXX: Well, decided to swallow the exception instead for now. Let us see how that goes.
449 // throw e;
450
451 }
452 }
453 count++;
454 }
455 }
456
457 /// <summary>
458 /// This informs a single neighboring region about agent "avatar".
459 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
460 /// </summary>
461 public void InformNeighborChildAgent(ScenePresence avatar, SimpleRegionInfo region, List<RegionInfo> neighbours)
462 {
463 AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
464 agent.BaseFolder = UUID.Zero;
465 agent.InventoryFolder = UUID.Zero;
466 agent.startpos = new Vector3(128, 128, 70);
467 agent.child = true;
468
469 InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
470 d.BeginInvoke(avatar, agent, region, region.ExternalEndPoint, true,
471 InformClientOfNeighbourCompleted,
472 d);
473 }
474
475 #endregion
476
477 public delegate void InformNeighbourThatRegionUpDelegate(RegionInfo region, ulong regionhandle);
478
479 private void InformNeighborsThatRegionisUpCompleted(IAsyncResult iar)
480 {
481 InformNeighbourThatRegionUpDelegate icon = (InformNeighbourThatRegionUpDelegate) iar.AsyncState;
482 icon.EndInvoke(iar);
483 }
484
485 /// <summary>
486 /// Asynchronous call to information neighbouring regions that this region is up
487 /// </summary>
488 /// <param name="region"></param>
489 /// <param name="regionhandle"></param>
490 private void InformNeighboursThatRegionIsUpAsync(RegionInfo region, ulong regionhandle)
491 {
492 m_log.Info("[INTERGRID]: Starting to inform neighbors that I'm here");
493 //RegionUpData regiondata = new RegionUpData(region.RegionLocX, region.RegionLocY, region.ExternalHostName, region.InternalEndPoint.Port);
494
495 bool regionAccepted =
496 m_commsProvider.InterRegion.RegionUp(new SerializableRegionInfo(region), regionhandle);
497
498 if (regionAccepted)
499 {
500 m_log.Info("[INTERGRID]: Completed informing neighbors that I'm here");
501 handlerRegionUp = OnRegionUp;
502
503 // yes, we're notifying ourselves.
504 if (handlerRegionUp != null)
505 handlerRegionUp(region);
506 }
507 else
508 {
509 m_log.Warn("[INTERGRID]: Failed to inform neighbors that I'm here.");
510 }
511 }
512
513 /// <summary>
514 /// Called by scene when region is initialized (not always when it's listening for agents)
515 /// This is an inter-region message that informs the surrounding neighbors that the sim is up.
516 /// </summary>
517 public void InformNeighborsThatRegionisUp(RegionInfo region)
518 {
519 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending InterRegion Notification that region is up " + region.RegionName);
520
521
522 List<SimpleRegionInfo> neighbours = new List<SimpleRegionInfo>();
523 // This stays uncached because we don't already know about our neighbors at this point.
524 neighbours = m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
525 if (neighbours != null)
526 {
527 for (int i = 0; i < neighbours.Count; i++)
528 {
529 InformNeighbourThatRegionUpDelegate d = InformNeighboursThatRegionIsUpAsync;
530
531 d.BeginInvoke(region, neighbours[i].RegionHandle,
532 InformNeighborsThatRegionisUpCompleted,
533 d);
534 }
535 }
536
537 //bool val = m_commsProvider.InterRegion.RegionUp(new SerializableRegionInfo(region));
538 }
539
540 public delegate void SendChildAgentDataUpdateDelegate(AgentPosition cAgentData, ulong regionHandle);
541
542 /// <summary>
543 /// This informs all neighboring regions about the settings of it's child agent.
544 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
545 ///
546 /// This contains information, such as, Draw Distance, Camera location, Current Position, Current throttle settings, etc.
547 ///
548 /// </summary>
549 private void SendChildAgentDataUpdateAsync(AgentPosition cAgentData, ulong regionHandle)
550 {
551 //m_log.Info("[INTERGRID]: Informing neighbors about my agent in " + m_regionInfo.RegionName);
552 try
553 {
554 //m_commsProvider.InterRegion.ChildAgentUpdate(regionHandle, cAgentData);
555 m_interregionCommsOut.SendChildAgentUpdate(regionHandle, cAgentData);
556 }
557 catch
558 {
559 // Ignore; we did our best
560 }
561
562 //if (regionAccepted)
563 //{
564 // //m_log.Info("[INTERGRID]: Completed sending a neighbor an update about my agent");
565 //}
566 //else
567 //{
568 // //m_log.Info("[INTERGRID]: Failed sending a neighbor an update about my agent");
569 //}
570
571 }
572
573 private void SendChildAgentDataUpdateCompleted(IAsyncResult iar)
574 {
575 SendChildAgentDataUpdateDelegate icon = (SendChildAgentDataUpdateDelegate) iar.AsyncState;
576 icon.EndInvoke(iar);
577 }
578
579 public void SendChildAgentDataUpdate(AgentPosition cAgentData, ScenePresence presence)
580 {
581 // This assumes that we know what our neighbors are.
582 try
583 {
584 foreach (ulong regionHandle in presence.KnownChildRegionHandles)
585 {
586 if (regionHandle != m_regionInfo.RegionHandle)
587 {
588 SendChildAgentDataUpdateDelegate d = SendChildAgentDataUpdateAsync;
589 d.BeginInvoke(cAgentData, regionHandle,
590 SendChildAgentDataUpdateCompleted,
591 d);
592 }
593 }
594 }
595 catch (InvalidOperationException)
596 {
597 // We're ignoring a collection was modified error because this data gets old and outdated fast.
598 }
599
600 }
601
602 public delegate void SendCloseChildAgentDelegate(UUID agentID, ulong regionHandle);
603
604 /// <summary>
605 /// This Closes child agents on neighboring regions
606 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
607 /// </summary>
608 protected void SendCloseChildAgentAsync(UUID agentID, ulong regionHandle)
609 {
610
611 m_log.Debug("[INTERGRID]: Sending close agent to " + regionHandle);
612 // let's do our best, but there's not much we can do if the neighbour doesn't accept.
613
614 //m_commsProvider.InterRegion.TellRegionToCloseChildConnection(regionHandle, agentID);
615 m_interregionCommsOut.SendCloseAgent(regionHandle, agentID);
616 }
617
618 private void SendCloseChildAgentCompleted(IAsyncResult iar)
619 {
620 SendCloseChildAgentDelegate icon = (SendCloseChildAgentDelegate)iar.AsyncState;
621 icon.EndInvoke(iar);
622 }
623
624 public void SendCloseChildAgentConnections(UUID agentID, List<ulong> regionslst)
625 {
626 foreach (ulong handle in regionslst)
627 {
628 SendCloseChildAgentDelegate d = SendCloseChildAgentAsync;
629 d.BeginInvoke(agentID, handle,
630 SendCloseChildAgentCompleted,
631 d);
632 }
633 }
634
635 /// <summary>
636 /// Helper function to request neighbors from grid-comms
637 /// </summary>
638 /// <param name="regionHandle"></param>
639 /// <returns></returns>
640 public virtual RegionInfo RequestNeighbouringRegionInfo(ulong regionHandle)
641 {
642 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending Grid Services Request about neighbor " + regionHandle.ToString());
643 return m_commsProvider.GridService.RequestNeighbourInfo(regionHandle);
644 }
645
646 /// <summary>
647 /// Helper function to request neighbors from grid-comms
648 /// </summary>
649 /// <param name="regionID"></param>
650 /// <returns></returns>
651 public virtual RegionInfo RequestNeighbouringRegionInfo(UUID regionID)
652 {
653 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending Grid Services Request about neighbor " + regionID);
654 return m_commsProvider.GridService.RequestNeighbourInfo(regionID);
655 }
656
657 /// <summary>
658 /// Requests map blocks in area of minX, maxX, minY, MaxY in world cordinates
659 /// </summary>
660 /// <param name="minX"></param>
661 /// <param name="minY"></param>
662 /// <param name="maxX"></param>
663 /// <param name="maxY"></param>
664 public virtual void RequestMapBlocks(IClientAPI remoteClient, int minX, int minY, int maxX, int maxY)
665 {
666 List<MapBlockData> mapBlocks;
667 mapBlocks = m_commsProvider.GridService.RequestNeighbourMapBlocks(minX - 4, minY - 4, minX + 4, minY + 4);
668 remoteClient.SendMapBlock(mapBlocks, 0);
669 }
670
671 /// <summary>
672 /// Try to teleport an agent to a new region.
673 /// </summary>
674 /// <param name="remoteClient"></param>
675 /// <param name="RegionHandle"></param>
676 /// <param name="position"></param>
677 /// <param name="lookAt"></param>
678 /// <param name="flags"></param>
679 public virtual void RequestTeleportToLocation(ScenePresence avatar, ulong regionHandle, Vector3 position,
680 Vector3 lookAt, uint teleportFlags)
681 {
682 if (!avatar.Scene.Permissions.CanTeleport(avatar.UUID))
683 return;
684
685 bool destRegionUp = true;
686
687 IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();
688
689 if (regionHandle == m_regionInfo.RegionHandle)
690 {
691 m_log.DebugFormat(
692 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation {0} within {1}",
693 position, m_regionInfo.RegionName);
694
695 // Teleport within the same region
696 if (position.X < 0 || position.X > Constants.RegionSize || position.Y < 0 || position.Y > Constants.RegionSize || position.Z < 0)
697 {
698 Vector3 emergencyPos = new Vector3(128, 128, 128);
699
700 m_log.WarnFormat(
701 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation() was given an illegal position of {0} for avatar {1}, {2}. Substituting {3}",
702 position, avatar.Name, avatar.UUID, emergencyPos);
703 position = emergencyPos;
704 }
705
706 // TODO: Get proper AVG Height
707 float localAVHeight = 1.56f;
708 float posZLimit = (float)avatar.Scene.GetLandHeight((int)position.X, (int)position.Y);
709 float newPosZ = posZLimit + localAVHeight;
710 if (posZLimit >= (position.Z - (localAVHeight / 2)) && !(Single.IsInfinity(newPosZ) || Single.IsNaN(newPosZ)))
711 {
712 position.Z = newPosZ;
713 }
714
715 // Only send this if the event queue is null
716 if (eq == null)
717 avatar.ControllingClient.SendTeleportLocationStart();
718
719 avatar.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
720 avatar.Teleport(position);
721 }
722 else
723 {
724 RegionInfo reg = RequestNeighbouringRegionInfo(regionHandle);
725 if (reg != null)
726 {
727 m_log.DebugFormat(
728 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation to {0} in {1}",
729 position, reg.RegionName);
730
731 if (eq == null)
732 avatar.ControllingClient.SendTeleportLocationStart();
733
734 // Let's do DNS resolution only once in this process, please!
735 // This may be a costly operation. The reg.ExternalEndPoint field is not a passive field,
736 // it's actually doing a lot of work.
737 IPEndPoint endPoint = reg.ExternalEndPoint;
738 if (endPoint.Address == null)
739 {
740 // Couldn't resolve the name. Can't TP, because the viewer wants IP addresses.
741 destRegionUp = false;
742 }
743
744 if (destRegionUp)
745 {
746 uint newRegionX = (uint)(reg.RegionHandle >> 40);
747 uint newRegionY = (((uint)(reg.RegionHandle)) >> 8);
748 uint oldRegionX = (uint)(m_regionInfo.RegionHandle >> 40);
749 uint oldRegionY = (((uint)(m_regionInfo.RegionHandle)) >> 8);
750
751 // Fixing a bug where teleporting while sitting results in the avatar ending up removed from
752 // both regions
753 if (avatar.ParentID != (uint)0)
754 avatar.StandUp();
755
756 if (!avatar.ValidateAttachments())
757 {
758 avatar.ControllingClient.SendTeleportFailed("Inconsistent attachment state");
759 return;
760 }
761
762 // the avatar.Close below will clear the child region list. We need this below for (possibly)
763 // closing the child agents, so save it here (we need a copy as it is Clear()-ed).
764 //List<ulong> childRegions = new List<ulong>(avatar.GetKnownRegionList());
765 // Compared to ScenePresence.CrossToNewRegion(), there's no obvious code to handle a teleport
766 // failure at this point (unlike a border crossing failure). So perhaps this can never fail
767 // once we reach here...
768 //avatar.Scene.RemoveCapsHandler(avatar.UUID);
769
770 string capsPath = String.Empty;
771 AgentCircuitData agentCircuit = avatar.ControllingClient.RequestClientInfo();
772 agentCircuit.BaseFolder = UUID.Zero;
773 agentCircuit.InventoryFolder = UUID.Zero;
774 agentCircuit.startpos = position;
775 agentCircuit.child = true;
776
777 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
778 {
779 // brand new agent, let's create a new caps seed
780 agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
781 }
782
783 // Let's create an agent there if one doesn't exist yet.
784 //if (!m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, agentCircuit))
785 if (!m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, agentCircuit))
786 {
787 avatar.ControllingClient.SendTeleportFailed("Destination is not accepting teleports.");
788 return;
789 }
790
791 // OK, it got this agent. Let's close some child agents
792 avatar.CloseChildAgents(newRegionX, newRegionY);
793
794 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
795 {
796 capsPath
797 = "http://"
798 + reg.ExternalHostName
799 + ":"
800 + reg.HttpPort
801 + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
802
803 if (eq != null)
804 {
805 eq.EnableSimulator(reg.RegionHandle, endPoint, avatar.UUID);
806
807 // ES makes the client send a UseCircuitCode message to the destination,
808 // which triggers a bunch of things there.
809 // So let's wait
810 Thread.Sleep(2000);
811
812 eq.EstablishAgentCommunication(avatar.UUID, endPoint, capsPath);
813 }
814 else
815 {
816 avatar.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
817 }
818 }
819 else
820 {
821 agentCircuit.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, reg.RegionHandle);
822 capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
823 + "/CAPS/" + agentCircuit.CapsPath + "0000/";
824 }
825
826 // Expect avatar crossing is a heavy-duty function at the destination.
827 // That is where MakeRoot is called, which fetches appearance and inventory.
828 // Plus triggers OnMakeRoot, which spawns a series of asynchronous updates.
829 //m_commsProvider.InterRegion.ExpectAvatarCrossing(reg.RegionHandle, avatar.ControllingClient.AgentId,
830 // position, false);
831
832 //{
833 // avatar.ControllingClient.SendTeleportFailed("Problem with destination.");
834 // // We should close that agent we just created over at destination...
835 // List<ulong> lst = new List<ulong>();
836 // lst.Add(reg.RegionHandle);
837 // SendCloseChildAgentAsync(avatar.UUID, lst);
838 // return;
839 //}
840
841 SetInTransit(avatar.UUID);
842 // Let's send a full update of the agent. This is a synchronous call.
843 AgentData agent = new AgentData();
844 avatar.CopyTo(agent);
845 agent.Position = position;
846 agent.CallbackURI = "http://" + m_regionInfo.ExternalHostName + ":" + m_regionInfo.HttpPort +
847 "/agent/" + avatar.UUID.ToString() + "/" + avatar.Scene.RegionInfo.RegionHandle.ToString() + "/release/";
848
849 m_interregionCommsOut.SendChildAgentUpdate(reg.RegionHandle, agent);
850
851 m_log.DebugFormat(
852 "[CAPS]: Sending new CAPS seed url {0} to client {1}", capsPath, avatar.UUID);
853
854
855 if (eq != null)
856 {
857 eq.TeleportFinishEvent(reg.RegionHandle, 13, endPoint,
858 4, teleportFlags, capsPath, avatar.UUID);
859 }
860 else
861 {
862 avatar.ControllingClient.SendRegionTeleport(reg.RegionHandle, 13, endPoint, 4,
863 teleportFlags, capsPath);
864 }
865
866 // TeleportFinish makes the client send CompleteMovementIntoRegion (at the destination), which
867 // trigers a whole shebang of things there, including MakeRoot. So let's wait for confirmation
868 // that the client contacted the destination before we send the attachments and close things here.
869 if (!WaitForCallback(avatar.UUID))
870 {
871 // Client never contacted destination. Let's restore everything back
872 avatar.ControllingClient.SendTeleportFailed("Problems connecting to destination.");
873
874 ResetFromTransit(avatar.UUID);
875
876 // Yikes! We should just have a ref to scene here.
877 avatar.Scene.InformClientOfNeighbours(avatar);
878
879 // Finally, kill the agent we just created at the destination.
880 m_interregionCommsOut.SendCloseAgent(reg.RegionHandle, avatar.UUID);
881
882 return;
883 }
884
885 // Can't go back from here
886 if (KiPrimitive != null)
887 {
888 KiPrimitive(avatar.LocalId);
889 }
890
891 avatar.MakeChildAgent();
892
893 // CrossAttachmentsIntoNewRegion is a synchronous call. We shouldn't need to wait after it
894 avatar.CrossAttachmentsIntoNewRegion(reg.RegionHandle, true);
895
896 // Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
897
898 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
899 {
900 Thread.Sleep(5000);
901 avatar.Close();
902 CloseConnection(avatar.UUID);
903 }
904
905 // if (teleport success) // seems to be always success here
906 // the user may change their profile information in other region,
907 // so the userinfo in UserProfileCache is not reliable any more, delete it
908 if (avatar.Scene.NeedSceneCacheClear(avatar.UUID))
909 {
910 m_commsProvider.UserProfileCacheService.RemoveUser(avatar.UUID);
911 m_log.DebugFormat(
912 "[SCENE COMMUNICATION SERVICE]: User {0} is going to another region, profile cache removed",
913 avatar.UUID);
914 }
915 }
916 else
917 {
918 avatar.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
919 }
920 }
921 else
922 {
923 // TP to a place that doesn't exist (anymore)
924 // Inform the viewer about that
925 avatar.ControllingClient.SendTeleportFailed("The region you tried to teleport to doesn't exist anymore");
926
927 // and set the map-tile to '(Offline)'
928 uint regX, regY;
929 Utils.LongToUInts(regionHandle, out regX, out regY);
930
931 MapBlockData block = new MapBlockData();
932 block.X = (ushort)(regX / Constants.RegionSize);
933 block.Y = (ushort)(regY / Constants.RegionSize);
934 block.Access = 254; // == not there
935
936 List<MapBlockData> blocks = new List<MapBlockData>();
937 blocks.Add(block);
938 avatar.ControllingClient.SendMapBlock(blocks, 0);
939 }
940 }
941 }
942
943 protected bool WaitForCallback(UUID id)
944 {
945 int count = 20;
946 while (m_agentsInTransit.Contains(id) && count-- > 0)
947 {
948 //Console.WriteLine(" >>> Waiting... " + count);
949 Thread.Sleep(1000);
950 }
951
952 if (count > 0)
953 return true;
954 else
955 return false;
956 }
957
958 public bool ReleaseAgent(UUID id)
959 {
960 //Console.WriteLine(" >>> ReleaseAgent called <<< ");
961 return ResetFromTransit(id);
962 }
963
964 protected void SetInTransit(UUID id)
965 {
966 lock (m_agentsInTransit)
967 {
968 if (!m_agentsInTransit.Contains(id))
969 m_agentsInTransit.Add(id);
970 }
971 }
972
973 protected bool ResetFromTransit(UUID id)
974 {
975 lock (m_agentsInTransit)
976 {
977 if (m_agentsInTransit.Contains(id))
978 {
979 m_agentsInTransit.Remove(id);
980 return true;
981 }
982 }
983 return false;
984 }
985
986 private List<ulong> NeighbourHandles(List<SimpleRegionInfo> neighbours)
987 {
988 List<ulong> handles = new List<ulong>();
989 foreach (SimpleRegionInfo reg in neighbours)
990 {
991 handles.Add(reg.RegionHandle);
992 }
993 return handles;
994 }
995
996 private List<ulong> NewNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
997 {
998 return currentNeighbours.FindAll(delegate(ulong handle) { return !previousNeighbours.Contains(handle); });
999 }
1000
1001// private List<ulong> CommonNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
1002// {
1003// return currentNeighbours.FindAll(delegate(ulong handle) { return previousNeighbours.Contains(handle); });
1004// }
1005
1006 private List<ulong> OldNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
1007 {
1008 return previousNeighbours.FindAll(delegate(ulong handle) { return !currentNeighbours.Contains(handle); });
1009 }
1010 /// <summary>
1011 /// Inform a neighbouring region that an avatar is about to cross into it.
1012 /// </summary>
1013 /// <param name="regionhandle"></param>
1014 /// <param name="agentID"></param>
1015 /// <param name="position"></param>
1016 public bool CrossToNeighbouringRegion(ulong regionhandle, UUID agentID, Vector3 position, bool isFlying)
1017 {
1018 return m_commsProvider.InterRegion.ExpectAvatarCrossing(regionhandle, agentID, position, isFlying);
1019 }
1020
1021 public bool PrimCrossToNeighboringRegion(ulong regionhandle, UUID primID, string objData, int XMLMethod)
1022 {
1023 return m_commsProvider.InterRegion.InformRegionOfPrimCrossing(regionhandle, primID, objData, XMLMethod);
1024 }
1025
1026 public Dictionary<string, string> GetGridSettings()
1027 {
1028 return m_commsProvider.GridService.GetGridSettings();
1029 }
1030
1031 public void LogOffUser(UUID userid, UUID regionid, ulong regionhandle, Vector3 position, Vector3 lookat)
1032 {
1033 m_commsProvider.LogOffUser(userid, regionid, regionhandle, position, lookat);
1034 }
1035
1036 // deprecated as of 2008-08-27
1037 public void LogOffUser(UUID userid, UUID regionid, ulong regionhandle, float posx, float posy, float posz)
1038 {
1039 m_commsProvider.LogOffUser(userid, regionid, regionhandle, posx, posy, posz);
1040 }
1041
1042 public void ClearUserAgent(UUID avatarID)
1043 {
1044 m_commsProvider.UserService.ClearUserAgent(avatarID);
1045 }
1046
1047 public void AddNewUserFriend(UUID friendlistowner, UUID friend, uint perms)
1048 {
1049 m_commsProvider.AddNewUserFriend(friendlistowner, friend, perms);
1050 }
1051
1052 public void UpdateUserFriendPerms(UUID friendlistowner, UUID friend, uint perms)
1053 {
1054 m_commsProvider.UpdateUserFriendPerms(friendlistowner, friend, perms);
1055 }
1056
1057 public void RemoveUserFriend(UUID friendlistowner, UUID friend)
1058 {
1059 m_commsProvider.RemoveUserFriend(friendlistowner, friend);
1060 }
1061
1062 public List<FriendListItem> GetUserFriendList(UUID friendlistowner)
1063 {
1064 return m_commsProvider.GetUserFriendList(friendlistowner);
1065 }
1066
1067 public List<MapBlockData> RequestNeighbourMapBlocks(int minX, int minY, int maxX, int maxY)
1068 {
1069 return m_commsProvider.GridService.RequestNeighbourMapBlocks(minX, minY, maxX, maxY);
1070 }
1071
1072 public List<AvatarPickerAvatar> GenerateAgentPickerRequestResponse(UUID queryID, string query)
1073 {
1074 return m_commsProvider.GenerateAgentPickerRequestResponse(queryID, query);
1075 }
1076
1077 public List<RegionInfo> RequestNamedRegions(string name, int maxNumber)
1078 {
1079 return m_commsProvider.GridService.RequestNamedRegions(name, maxNumber);
1080 }
1081
1082// private void Dump(string msg, List<ulong> handles)
1083// {
1084// Console.WriteLine("-------------- HANDLE DUMP ({0}) ---------", msg);
1085// foreach (ulong handle in handles)
1086// {
1087// uint x, y;
1088// Utils.LongToUInts(handle, out x, out y);
1089// x = x / Constants.RegionSize;
1090// y = y / Constants.RegionSize;
1091// Console.WriteLine("({0}, {1})", x, y);
1092// }
1093// }
1094 }
1095}
generated by cgit v1.1 at 2024-07-05 11:35:02 +0000