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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.Region.Environment.Interfaces;
37using OpenSim.Framework;
38using OpenSim.Framework.Communications;
39using OpenSim.Framework.Communications.Capabilities;
40using OpenSim.Region.Interfaces;
41using OSD = OpenMetaverse.StructuredData.OSD;
42
43namespace OpenSim.Region.Environment.Scenes
44{
45 public delegate void KiPrimitiveDelegate(uint localID);
46
47 public delegate void RemoveKnownRegionsFromAvatarList(UUID avatarID, List<ulong> regionlst);
48
49 public class SceneCommunicationService //one instance per region
50 {
51 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
52
53 protected CommunicationsManager m_commsProvider;
54 protected IInterregionCommsOut m_interregionCommsOut;
55 protected RegionInfo m_regionInfo;
56
57 protected RegionCommsListener regionCommsHost;
58
59 protected List<UUID> m_agentsInTransit;
60
61 public event AgentCrossing OnAvatarCrossingIntoRegion;
62 public event ExpectUserDelegate OnExpectUser;
63 public event ExpectPrimDelegate OnExpectPrim;
64 public event CloseAgentConnection OnCloseAgentConnection;
65 public event PrimCrossing OnPrimCrossingIntoRegion;
66 public event RegionUp OnRegionUp;
67 public event ChildAgentUpdate OnChildAgentUpdate;
68 //public event RemoveKnownRegionsFromAvatarList OnRemoveKnownRegionFromAvatar;
69 public event LogOffUser OnLogOffUser;
70 public event GetLandData OnGetLandData;
71
72 private AgentCrossing handlerAvatarCrossingIntoRegion = null; // OnAvatarCrossingIntoRegion;
73 private ExpectUserDelegate handlerExpectUser = null; // OnExpectUser;
74 private ExpectPrimDelegate handlerExpectPrim = null; // OnExpectPrim;
75 private CloseAgentConnection handlerCloseAgentConnection = null; // OnCloseAgentConnection;
76 private PrimCrossing handlerPrimCrossingIntoRegion = null; // OnPrimCrossingIntoRegion;
77 private RegionUp handlerRegionUp = null; // OnRegionUp;
78 private ChildAgentUpdate handlerChildAgentUpdate = null; // OnChildAgentUpdate;
79 //private RemoveKnownRegionsFromAvatarList handlerRemoveKnownRegionFromAvatar = null; // OnRemoveKnownRegionFromAvatar;
80 private LogOffUser handlerLogOffUser = null;
81 private GetLandData handlerGetLandData = null; // OnGetLandData
82
83 public KiPrimitiveDelegate KiPrimitive;
84
85 public SceneCommunicationService(CommunicationsManager commsMan)
86 {
87 m_commsProvider = commsMan;
88 m_agentsInTransit = new List<UUID>();
89 }
90
91 /// <summary>
92 /// Register a region with the grid
93 /// </summary>
94 /// <param name="regionInfos"></param>
95 /// <exception cref="System.Exception">Thrown if region registration fails.</exception>
96 public void RegisterRegion(IInterregionCommsOut comms_out, RegionInfo regionInfos)
97 {
98 m_interregionCommsOut = comms_out;
99
100 m_regionInfo = regionInfos;
101 m_commsProvider.GridService.gdebugRegionName = regionInfos.RegionName;
102 m_commsProvider.InterRegion.rdebugRegionName = regionInfos.RegionName;
103 regionCommsHost = m_commsProvider.GridService.RegisterRegion(m_regionInfo);
104
105 if (regionCommsHost != null)
106 {
107 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: registered with gridservice and got" + regionCommsHost.ToString());
108
109 regionCommsHost.debugRegionName = regionInfos.RegionName;
110 regionCommsHost.OnExpectPrim += IncomingPrimCrossing;
111 regionCommsHost.OnExpectUser += NewUserConnection;
112 regionCommsHost.OnAvatarCrossingIntoRegion += AgentCrossing;
113 regionCommsHost.OnCloseAgentConnection += CloseConnection;
114 regionCommsHost.OnRegionUp += newRegionUp;
115 regionCommsHost.OnChildAgentUpdate += ChildAgentUpdate;
116 regionCommsHost.OnLogOffUser += GridLogOffUser;
117 regionCommsHost.OnGetLandData += FetchLandData;
118 }
119 else
120 {
121 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: registered with gridservice and got null");
122 }
123 }
124
125 public RegionInfo RequestClosestRegion(string name)
126 {
127 return m_commsProvider.GridService.RequestClosestRegion(name);
128 }
129
130 public void Close()
131 {
132 if (regionCommsHost != null)
133 {
134 regionCommsHost.OnLogOffUser -= GridLogOffUser;
135 regionCommsHost.OnChildAgentUpdate -= ChildAgentUpdate;
136 regionCommsHost.OnRegionUp -= newRegionUp;
137 regionCommsHost.OnExpectUser -= NewUserConnection;
138 regionCommsHost.OnExpectPrim -= IncomingPrimCrossing;
139 regionCommsHost.OnAvatarCrossingIntoRegion -= AgentCrossing;
140 regionCommsHost.OnCloseAgentConnection -= CloseConnection;
141 regionCommsHost.OnGetLandData -= FetchLandData;
142
143 try
144 {
145 m_commsProvider.GridService.DeregisterRegion(m_regionInfo);
146 }
147 catch (Exception e)
148 {
149 m_log.ErrorFormat(
150 "[GRID]: Deregistration of region {0} from the grid failed - {1}. Continuing",
151 m_regionInfo.RegionName, e);
152 }
153
154 regionCommsHost = null;
155 }
156 }
157
158 #region CommsManager Event handlers
159
160 /// <summary>
161 ///
162 /// </summary>
163 /// <param name="regionHandle"></param>
164 /// <param name="agent"></param>
165 ///
166 protected void NewUserConnection(AgentCircuitData agent)
167 {
168 handlerExpectUser = OnExpectUser;
169 if (handlerExpectUser != null)
170 {
171 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: OnExpectUser Fired for User:" + agent.firstname + " " + agent.lastname);
172 handlerExpectUser(agent);
173 }
174 }
175
176 protected void GridLogOffUser(UUID AgentID, UUID RegionSecret, string message)
177 {
178 handlerLogOffUser = OnLogOffUser;
179 if (handlerLogOffUser != null)
180 {
181 handlerLogOffUser(AgentID, RegionSecret, message);
182 }
183 }
184
185 protected bool newRegionUp(RegionInfo region)
186 {
187 handlerRegionUp = OnRegionUp;
188 if (handlerRegionUp != null)
189 {
190 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: newRegionUp Fired for User:" + region.RegionName);
191 handlerRegionUp(region);
192 }
193 return true;
194 }
195
196 protected bool ChildAgentUpdate(ChildAgentDataUpdate cAgentData)
197 {
198 handlerChildAgentUpdate = OnChildAgentUpdate;
199 if (handlerChildAgentUpdate != null)
200 handlerChildAgentUpdate(cAgentData);
201
202
203 return true;
204 }
205
206 protected void AgentCrossing(UUID agentID, Vector3 position, bool isFlying)
207 {
208 handlerAvatarCrossingIntoRegion = OnAvatarCrossingIntoRegion;
209 if (handlerAvatarCrossingIntoRegion != null)
210 {
211 handlerAvatarCrossingIntoRegion(agentID, position, isFlying);
212 }
213 }
214
215 protected bool IncomingPrimCrossing(UUID primID, String objXMLData, int XMLMethod)
216 {
217 handlerExpectPrim = OnExpectPrim;
218 if (handlerExpectPrim != null)
219 {
220 return handlerExpectPrim(primID, objXMLData, XMLMethod);
221 }
222 else
223 {
224 return false;
225 }
226
227 }
228
229 protected void PrimCrossing(UUID primID, Vector3 position, bool isPhysical)
230 {
231 handlerPrimCrossingIntoRegion = OnPrimCrossingIntoRegion;
232 if (handlerPrimCrossingIntoRegion != null)
233 {
234 handlerPrimCrossingIntoRegion(primID, position, isPhysical);
235 }
236 }
237
238 protected bool CloseConnection(UUID agentID)
239 {
240 m_log.Debug("[INTERREGION]: Incoming Agent Close Request for agent: " + agentID);
241
242 handlerCloseAgentConnection = OnCloseAgentConnection;
243 if (handlerCloseAgentConnection != null)
244 {
245 return handlerCloseAgentConnection(agentID);
246 }
247
248 return false;
249 }
250
251 protected LandData FetchLandData(uint x, uint y)
252 {
253 handlerGetLandData = OnGetLandData;
254 if (handlerGetLandData != null)
255 {
256 return handlerGetLandData(x, y);
257 }
258 return null;
259 }
260
261 #endregion
262
263 #region Inform Client of Neighbours
264
265 private delegate void InformClientOfNeighbourDelegate(
266 ScenePresence avatar, AgentCircuitData a, SimpleRegionInfo reg, IPEndPoint endPoint, bool newAgent);
267
268 private void InformClientOfNeighbourCompleted(IAsyncResult iar)
269 {
270 InformClientOfNeighbourDelegate icon = (InformClientOfNeighbourDelegate) iar.AsyncState;
271 icon.EndInvoke(iar);
272 }
273
274 /// <summary>
275 /// Async component for informing client of which neighbours exist
276 /// </summary>
277 /// <remarks>
278 /// This needs to run asynchronesously, as a network timeout may block the thread for a long while
279 /// </remarks>
280 /// <param name="remoteClient"></param>
281 /// <param name="a"></param>
282 /// <param name="regionHandle"></param>
283 /// <param name="endPoint"></param>
284 private void InformClientOfNeighbourAsync(ScenePresence avatar, AgentCircuitData a, SimpleRegionInfo reg,
285 IPEndPoint endPoint, bool newAgent)
286 {
287 // Let's wait just a little to give time to originating regions to catch up with closing child agents
288 // after a cross here
289 Thread.Sleep(500);
290
291 uint x, y;
292 Utils.LongToUInts(reg.RegionHandle, out x, out y);
293 x = x / Constants.RegionSize;
294 y = y / Constants.RegionSize;
295 m_log.Info("[INTERGRID]: Starting to inform client about neighbour " + x + ", " + y + "(" + endPoint.ToString() + ")");
296
297 string capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
298 + "/CAPS/" + a.CapsPath + "0000/";
299
300 //bool regionAccepted = m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, a);
301 bool regionAccepted = m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, a);
302
303 if (regionAccepted && newAgent)
304 {
305 IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();
306 if (eq != null)
307 {
308 OSD Item = EventQueueHelper.EnableSimulator(reg.RegionHandle, endPoint);
309 eq.Enqueue(Item, avatar.UUID);
310
311 Item = EventQueueHelper.EstablishAgentCommunication(avatar.UUID, endPoint.ToString(), capsPath);
312 eq.Enqueue(Item, avatar.UUID);
313
314 m_log.DebugFormat("[CAPS]: Sending new CAPS seed url {0} to client {1} in region {2}", capsPath, avatar.UUID, avatar.Scene.RegionInfo.RegionName);
315 }
316 else
317 {
318 avatar.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
319 // TODO: make Event Queue disablable!
320 }
321
322 m_log.Info("[INTERGRID]: Completed inform client about neighbour " + endPoint.ToString());
323 }
324 }
325
326 public void RequestNeighbors(RegionInfo region)
327 {
328 // List<SimpleRegionInfo> neighbours =
329 m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
330 //IPEndPoint blah = new IPEndPoint();
331
332 //blah.Address = region.RemotingAddress;
333 //blah.Port = region.RemotingPort;
334 }
335
336 /// <summary>
337 /// This informs all neighboring regions about agent "avatar".
338 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
339 /// </summary>
340 public void EnableNeighbourChildAgents(ScenePresence avatar, List<RegionInfo> lstneighbours)
341 {
342 List<SimpleRegionInfo> neighbours = new List<SimpleRegionInfo>();
343
344 //m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
345 for (int i = 0; i < lstneighbours.Count; i++)
346 {
347 // We don't want to keep sending to regions that consistently fail on comms.
348 if (!(lstneighbours[i].commFailTF))
349 {
350 neighbours.Add(new SimpleRegionInfo(lstneighbours[i]));
351 }
352 }
353 // we're going to be using the above code once neighbour cache is correct. Currently it doesn't appear to be
354 // So we're temporarily going back to the old method of grabbing it from the Grid Server Every time :/
355 neighbours =
356 m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
357
358 /// We need to find the difference between the new regions where there are no child agents
359 /// and the regions where there are already child agents. We only send notification to the former.
360 List<ulong> neighbourHandles = NeighbourHandles(neighbours); // on this region
361 neighbourHandles.Add(avatar.Scene.RegionInfo.RegionHandle); // add this region too
362 List<ulong> previousRegionNeighbourHandles
363 = new List<ulong>(avatar.Scene.CapsModule.GetChildrenSeeds(avatar.UUID).Keys);
364 List<ulong> newRegions = NewNeighbours(neighbourHandles, previousRegionNeighbourHandles);
365 List<ulong> oldRegions = OldNeighbours(neighbourHandles, previousRegionNeighbourHandles);
366
367 //Dump("Current Neighbors", neighbourHandles);
368 //Dump("Previous Neighbours", previousRegionNeighbourHandles);
369 //Dump("New Neighbours", newRegions);
370 //Dump("Old Neighbours", oldRegions);
371
372 /// Update the scene presence's known regions here on this region
373 avatar.DropOldNeighbours(oldRegions);
374
375 /// Collect as many seeds as possible
376 Dictionary<ulong, string> seeds
377 = new Dictionary<ulong, string>(avatar.Scene.CapsModule.GetChildrenSeeds(avatar.UUID));
378
379 //Console.WriteLine(" !!! No. of seeds: " + seeds.Count);
380 if (!seeds.ContainsKey(avatar.Scene.RegionInfo.RegionHandle))
381 seeds.Add(avatar.Scene.RegionInfo.RegionHandle, avatar.ControllingClient.RequestClientInfo().CapsPath);
382
383 /// Create the necessary child agents
384 List<AgentCircuitData> cagents = new List<AgentCircuitData>();
385 foreach (SimpleRegionInfo neighbour in neighbours)
386 {
387 if (neighbour.RegionHandle != avatar.Scene.RegionInfo.RegionHandle)
388 {
389
390 AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
391 agent.BaseFolder = UUID.Zero;
392 agent.InventoryFolder = UUID.Zero;
393 agent.startpos = new Vector3(128, 128, 70);
394 agent.child = true;
395
396 if (newRegions.Contains(neighbour.RegionHandle))
397 {
398 agent.CapsPath = CapsUtil.GetRandomCapsObjectPath();
399 avatar.AddNeighbourRegion(neighbour.RegionHandle, agent.CapsPath);
400 seeds.Add(neighbour.RegionHandle, agent.CapsPath);
401 }
402 else
403 agent.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, neighbour.RegionHandle);
404
405 cagents.Add(agent);
406 }
407 }
408
409 /// Update all child agent with everyone's seeds
410 foreach (AgentCircuitData a in cagents)
411 {
412 a.ChildrenCapSeeds = new Dictionary<ulong, string>(seeds);
413 }
414 // These two are the same thing!
415 avatar.Scene.CapsModule.SetChildrenSeed(avatar.UUID, seeds);
416 avatar.KnownRegions = seeds;
417 //avatar.Scene.DumpChildrenSeeds(avatar.UUID);
418 //avatar.DumpKnownRegions();
419
420 bool newAgent = false;
421 int count = 0;
422 foreach (SimpleRegionInfo neighbour in neighbours)
423 {
424 // Don't do it if there's already an agent in that region
425 if (newRegions.Contains(neighbour.RegionHandle))
426 newAgent = true;
427 else
428 newAgent = false;
429
430 if (neighbour.RegionHandle != avatar.Scene.RegionInfo.RegionHandle)
431 {
432 InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
433 try
434 {
435 d.BeginInvoke(avatar, cagents[count], neighbour, neighbour.ExternalEndPoint, newAgent,
436 InformClientOfNeighbourCompleted,
437 d);
438 }
439 catch (Exception e)
440 {
441 m_log.ErrorFormat(
442 "[REGIONINFO]: Could not resolve external hostname {0} for region {1} ({2}, {3}). {4}",
443 neighbour.ExternalHostName,
444 neighbour.RegionHandle,
445 neighbour.RegionLocX,
446 neighbour.RegionLocY,
447 e);
448
449 // FIXME: Okay, even though we've failed, we're still going to throw the exception on,
450 // since I don't know what will happen if we just let the client continue
451
452 // XXX: Well, decided to swallow the exception instead for now. Let us see how that goes.
453 // throw e;
454
455 }
456 }
457 count++;
458 }
459 }
460
461 /// <summary>
462 /// This informs a single neighboring region about agent "avatar".
463 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
464 /// </summary>
465 public void InformNeighborChildAgent(ScenePresence avatar, SimpleRegionInfo region, List<RegionInfo> neighbours)
466 {
467 AgentCircuitData agent = avatar.ControllingClient.RequestClientInfo();
468 agent.BaseFolder = UUID.Zero;
469 agent.InventoryFolder = UUID.Zero;
470 agent.startpos = new Vector3(128, 128, 70);
471 agent.child = true;
472
473 InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
474 d.BeginInvoke(avatar, agent, region, region.ExternalEndPoint, true,
475 InformClientOfNeighbourCompleted,
476 d);
477 }
478
479 #endregion
480
481 public delegate void InformNeighbourThatRegionUpDelegate(RegionInfo region, ulong regionhandle);
482
483 private void InformNeighborsThatRegionisUpCompleted(IAsyncResult iar)
484 {
485 InformNeighbourThatRegionUpDelegate icon = (InformNeighbourThatRegionUpDelegate) iar.AsyncState;
486 icon.EndInvoke(iar);
487 }
488
489 /// <summary>
490 /// Asynchronous call to information neighbouring regions that this region is up
491 /// </summary>
492 /// <param name="region"></param>
493 /// <param name="regionhandle"></param>
494 private void InformNeighboursThatRegionIsUpAsync(RegionInfo region, ulong regionhandle)
495 {
496 m_log.Info("[INTERGRID]: Starting to inform neighbors that I'm here");
497 //RegionUpData regiondata = new RegionUpData(region.RegionLocX, region.RegionLocY, region.ExternalHostName, region.InternalEndPoint.Port);
498
499 bool regionAccepted =
500 m_commsProvider.InterRegion.RegionUp(new SerializableRegionInfo(region), regionhandle);
501
502 if (regionAccepted)
503 {
504 m_log.Info("[INTERGRID]: Completed informing neighbors that I'm here");
505 handlerRegionUp = OnRegionUp;
506
507 // yes, we're notifying ourselves.
508 if (handlerRegionUp != null)
509 handlerRegionUp(region);
510 }
511 else
512 {
513 m_log.Warn("[INTERGRID]: Failed to inform neighbors that I'm here.");
514 }
515 }
516
517 /// <summary>
518 /// Called by scene when region is initialized (not always when it's listening for agents)
519 /// This is an inter-region message that informs the surrounding neighbors that the sim is up.
520 /// </summary>
521 public void InformNeighborsThatRegionisUp(RegionInfo region)
522 {
523 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending InterRegion Notification that region is up " + region.RegionName);
524
525
526 List<SimpleRegionInfo> neighbours = new List<SimpleRegionInfo>();
527 // This stays uncached because we don't already know about our neighbors at this point.
528 neighbours = m_commsProvider.GridService.RequestNeighbours(m_regionInfo.RegionLocX, m_regionInfo.RegionLocY);
529 if (neighbours != null)
530 {
531 for (int i = 0; i < neighbours.Count; i++)
532 {
533 InformNeighbourThatRegionUpDelegate d = InformNeighboursThatRegionIsUpAsync;
534
535 d.BeginInvoke(region, neighbours[i].RegionHandle,
536 InformNeighborsThatRegionisUpCompleted,
537 d);
538 }
539 }
540
541 //bool val = m_commsProvider.InterRegion.RegionUp(new SerializableRegionInfo(region));
542 }
543
544 public delegate void SendChildAgentDataUpdateDelegate(AgentPosition cAgentData, ulong regionHandle);
545
546 /// <summary>
547 /// This informs all neighboring regions about the settings of it's child agent.
548 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
549 ///
550 /// This contains information, such as, Draw Distance, Camera location, Current Position, Current throttle settings, etc.
551 ///
552 /// </summary>
553 private void SendChildAgentDataUpdateAsync(AgentPosition cAgentData, ulong regionHandle)
554 {
555 //m_log.Info("[INTERGRID]: Informing neighbors about my agent in " + m_regionInfo.RegionName);
556 try
557 {
558 //m_commsProvider.InterRegion.ChildAgentUpdate(regionHandle, cAgentData);
559 m_interregionCommsOut.SendChildAgentUpdate(regionHandle, cAgentData);
560 }
561 catch
562 {
563 // Ignore; we did our best
564 }
565
566 //if (regionAccepted)
567 //{
568 // //m_log.Info("[INTERGRID]: Completed sending a neighbor an update about my agent");
569 //}
570 //else
571 //{
572 // //m_log.Info("[INTERGRID]: Failed sending a neighbor an update about my agent");
573 //}
574
575 }
576
577 private void SendChildAgentDataUpdateCompleted(IAsyncResult iar)
578 {
579 SendChildAgentDataUpdateDelegate icon = (SendChildAgentDataUpdateDelegate) iar.AsyncState;
580 icon.EndInvoke(iar);
581 }
582
583 public void SendChildAgentDataUpdate(AgentPosition cAgentData, ScenePresence presence)
584 {
585 // This assumes that we know what our neighbors are.
586 try
587 {
588 foreach (ulong regionHandle in presence.KnownChildRegionHandles)
589 {
590 if (regionHandle != m_regionInfo.RegionHandle)
591 {
592 SendChildAgentDataUpdateDelegate d = SendChildAgentDataUpdateAsync;
593 d.BeginInvoke(cAgentData, regionHandle,
594 SendChildAgentDataUpdateCompleted,
595 d);
596 }
597 }
598 }
599 catch (InvalidOperationException)
600 {
601 // We're ignoring a collection was modified error because this data gets old and outdated fast.
602 }
603
604 }
605
606 public delegate void SendCloseChildAgentDelegate(UUID agentID, ulong regionHandle);
607
608 /// <summary>
609 /// This Closes child agents on neighboring regions
610 /// Calls an asynchronous method to do so.. so it doesn't lag the sim.
611 /// </summary>
612 protected void SendCloseChildAgentAsync(UUID agentID, ulong regionHandle)
613 {
614
615 m_log.Debug("[INTERGRID]: Sending close agent to " + regionHandle);
616 // let's do our best, but there's not much we can do if the neighbour doesn't accept.
617
618 //m_commsProvider.InterRegion.TellRegionToCloseChildConnection(regionHandle, agentID);
619 m_interregionCommsOut.SendCloseAgent(regionHandle, agentID);
620 }
621
622 private void SendCloseChildAgentCompleted(IAsyncResult iar)
623 {
624 SendCloseChildAgentDelegate icon = (SendCloseChildAgentDelegate)iar.AsyncState;
625 icon.EndInvoke(iar);
626 }
627
628 public void SendCloseChildAgentConnections(UUID agentID, List<ulong> regionslst)
629 {
630 foreach (ulong handle in regionslst)
631 {
632 SendCloseChildAgentDelegate d = SendCloseChildAgentAsync;
633 d.BeginInvoke(agentID, handle,
634 SendCloseChildAgentCompleted,
635 d);
636 }
637 }
638
639 /// <summary>
640 /// Helper function to request neighbors from grid-comms
641 /// </summary>
642 /// <param name="regionHandle"></param>
643 /// <returns></returns>
644 public virtual RegionInfo RequestNeighbouringRegionInfo(ulong regionHandle)
645 {
646 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending Grid Services Request about neighbor " + regionHandle.ToString());
647 return m_commsProvider.GridService.RequestNeighbourInfo(regionHandle);
648 }
649
650 /// <summary>
651 /// Helper function to request neighbors from grid-comms
652 /// </summary>
653 /// <param name="regionID"></param>
654 /// <returns></returns>
655 public virtual RegionInfo RequestNeighbouringRegionInfo(UUID regionID)
656 {
657 //m_log.Info("[INTER]: " + debugRegionName + ": SceneCommunicationService: Sending Grid Services Request about neighbor " + regionID);
658 return m_commsProvider.GridService.RequestNeighbourInfo(regionID);
659 }
660
661 /// <summary>
662 /// Requests map blocks in area of minX, maxX, minY, MaxY in world cordinates
663 /// </summary>
664 /// <param name="minX"></param>
665 /// <param name="minY"></param>
666 /// <param name="maxX"></param>
667 /// <param name="maxY"></param>
668 public virtual void RequestMapBlocks(IClientAPI remoteClient, int minX, int minY, int maxX, int maxY)
669 {
670 List<MapBlockData> mapBlocks;
671 mapBlocks = m_commsProvider.GridService.RequestNeighbourMapBlocks(minX - 4, minY - 4, minX + 4, minY + 4);
672 remoteClient.SendMapBlock(mapBlocks, 0);
673 }
674
675 /// <summary>
676 /// Try to teleport an agent to a new region.
677 /// </summary>
678 /// <param name="remoteClient"></param>
679 /// <param name="RegionHandle"></param>
680 /// <param name="position"></param>
681 /// <param name="lookAt"></param>
682 /// <param name="flags"></param>
683 public virtual void RequestTeleportToLocation(ScenePresence avatar, ulong regionHandle, Vector3 position,
684 Vector3 lookAt, uint teleportFlags)
685 {
686 if (!avatar.Scene.Permissions.CanTeleport(avatar.UUID))
687 return;
688
689 bool destRegionUp = true;
690
691 IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();
692
693 if (regionHandle == m_regionInfo.RegionHandle)
694 {
695 m_log.DebugFormat(
696 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation {0} within {1}",
697 position, m_regionInfo.RegionName);
698
699 // Teleport within the same region
700 if (position.X < 0 || position.X > Constants.RegionSize || position.Y < 0 || position.Y > Constants.RegionSize || position.Z < 0)
701 {
702 Vector3 emergencyPos = new Vector3(128, 128, 128);
703
704 m_log.WarnFormat(
705 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation() was given an illegal position of {0} for avatar {1}, {2}. Substituting {3}",
706 position, avatar.Name, avatar.UUID, emergencyPos);
707 position = emergencyPos;
708 }
709
710 // TODO: Get proper AVG Height
711 float localAVHeight = 1.56f;
712 float posZLimit = (float)avatar.Scene.GetLandHeight((int)position.X, (int)position.Y);
713 float newPosZ = posZLimit + localAVHeight;
714 if (posZLimit >= (position.Z - (localAVHeight / 2)) && !(Single.IsInfinity(newPosZ) || Single.IsNaN(newPosZ)))
715 {
716 position.Z = newPosZ;
717 }
718
719 // Only send this if the event queue is null
720 if (eq == null)
721 avatar.ControllingClient.SendTeleportLocationStart();
722
723 avatar.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
724 avatar.Teleport(position);
725 }
726 else
727 {
728 RegionInfo reg = RequestNeighbouringRegionInfo(regionHandle);
729 if (reg != null)
730 {
731 m_log.DebugFormat(
732 "[SCENE COMMUNICATION SERVICE]: RequestTeleportToLocation to {0} in {1}",
733 position, reg.RegionName);
734
735 if (eq == null)
736 avatar.ControllingClient.SendTeleportLocationStart();
737
738 // Let's do DNS resolution only once in this process, please!
739 // This may be a costly operation. The reg.ExternalEndPoint field is not a passive field,
740 // it's actually doing a lot of work.
741 IPEndPoint endPoint = reg.ExternalEndPoint;
742 if (endPoint.Address == null)
743 {
744 // Couldn't resolve the name. Can't TP, because the viewer wants IP addresses.
745 destRegionUp = false;
746 }
747
748 if (destRegionUp)
749 {
750 uint newRegionX = (uint)(reg.RegionHandle >> 40);
751 uint newRegionY = (((uint)(reg.RegionHandle)) >> 8);
752 uint oldRegionX = (uint)(m_regionInfo.RegionHandle >> 40);
753 uint oldRegionY = (((uint)(m_regionInfo.RegionHandle)) >> 8);
754
755 // Fixing a bug where teleporting while sitting results in the avatar ending up removed from
756 // both regions
757 if (avatar.ParentID != (uint)0)
758 avatar.StandUp();
759
760 if (!avatar.ValidateAttachments())
761 {
762 avatar.ControllingClient.SendTeleportFailed("Inconsistent attachment state");
763 return;
764 }
765
766 // the avatar.Close below will clear the child region list. We need this below for (possibly)
767 // closing the child agents, so save it here (we need a copy as it is Clear()-ed).
768 //List<ulong> childRegions = new List<ulong>(avatar.GetKnownRegionList());
769 // Compared to ScenePresence.CrossToNewRegion(), there's no obvious code to handle a teleport
770 // failure at this point (unlike a border crossing failure). So perhaps this can never fail
771 // once we reach here...
772 //avatar.Scene.RemoveCapsHandler(avatar.UUID);
773
774 string capsPath = String.Empty;
775 AgentCircuitData agentCircuit = avatar.ControllingClient.RequestClientInfo();
776 agentCircuit.BaseFolder = UUID.Zero;
777 agentCircuit.InventoryFolder = UUID.Zero;
778 agentCircuit.startpos = position;
779 agentCircuit.child = true;
780
781 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
782 {
783 // brand new agent, let's create a new caps seed
784 agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
785 }
786
787 // Let's create an agent there if one doesn't exist yet.
788 //if (!m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, agentCircuit))
789 if (!m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, agentCircuit))
790 {
791 avatar.ControllingClient.SendTeleportFailed("Destination is not accepting teleports.");
792 return;
793 }
794
795 // OK, it got this agent. Let's close some child agents
796 avatar.CloseChildAgents(newRegionX, newRegionY);
797
798 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
799 {
800 capsPath
801 = "http://"
802 + reg.ExternalHostName
803 + ":"
804 + reg.HttpPort
805 + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);
806
807 if (eq != null)
808 {
809 OSD Item = EventQueueHelper.EnableSimulator(reg.RegionHandle, endPoint);
810 eq.Enqueue(Item, avatar.UUID);
811
812 // ES makes the client send a UseCircuitCode message to the destination,
813 // which triggers a bunch of things there.
814 // So let's wait
815 Thread.Sleep(2000);
816
817 Item = EventQueueHelper.EstablishAgentCommunication(avatar.UUID, endPoint.ToString(), capsPath);
818 eq.Enqueue(Item, avatar.UUID);
819 }
820 else
821 {
822 avatar.ControllingClient.InformClientOfNeighbour(reg.RegionHandle, endPoint);
823 }
824 }
825 else
826 {
827 agentCircuit.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, reg.RegionHandle);
828 capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
829 + "/CAPS/" + agentCircuit.CapsPath + "0000/";
830 }
831
832 // Expect avatar crossing is a heavy-duty function at the destination.
833 // That is where MakeRoot is called, which fetches appearance and inventory.
834 // Plus triggers OnMakeRoot, which spawns a series of asynchronous updates.
835 //m_commsProvider.InterRegion.ExpectAvatarCrossing(reg.RegionHandle, avatar.ControllingClient.AgentId,
836 // position, false);
837
838 //{
839 // avatar.ControllingClient.SendTeleportFailed("Problem with destination.");
840 // // We should close that agent we just created over at destination...
841 // List<ulong> lst = new List<ulong>();
842 // lst.Add(reg.RegionHandle);
843 // SendCloseChildAgentAsync(avatar.UUID, lst);
844 // return;
845 //}
846
847 SetInTransit(avatar.UUID);
848 // Let's send a full update of the agent. This is a synchronous call.
849 AgentData agent = new AgentData();
850 avatar.CopyTo(agent);
851 agent.Position = position;
852 agent.CallbackURI = "http://" + m_regionInfo.ExternalHostName + ":" + m_regionInfo.HttpPort +
853 "/agent/" + avatar.UUID.ToString() + "/" + avatar.Scene.RegionInfo.RegionHandle.ToString() + "/release/";
854
855 m_interregionCommsOut.SendChildAgentUpdate(reg.RegionHandle, agent);
856
857 m_log.DebugFormat(
858 "[CAPS]: Sending new CAPS seed url {0} to client {1}", capsPath, avatar.UUID);
859
860
861 if (eq != null)
862 {
863 OSD Item = EventQueueHelper.TeleportFinishEvent(reg.RegionHandle, 13, endPoint,
864 4, teleportFlags, capsPath, avatar.UUID);
865 eq.Enqueue(Item, avatar.UUID);
866 }
867 else
868 {
869 avatar.ControllingClient.SendRegionTeleport(reg.RegionHandle, 13, endPoint, 4,
870 teleportFlags, capsPath);
871 }
872
873 // TeleportFinish makes the client send CompleteMovementIntoRegion (at the destination), which
874 // trigers a whole shebang of things there, including MakeRoot. So let's wait for confirmation
875 // that the client contacted the destination before we send the attachments and close things here.
876 if (!WaitForCallback(avatar.UUID))
877 {
878 // Client never contacted destination. Let's restore everything back
879 avatar.ControllingClient.SendTeleportFailed("Problems connecting to destination.");
880
881 ResetFromTransit(avatar.UUID);
882
883 // Yikes! We should just have a ref to scene here.
884 avatar.Scene.InformClientOfNeighbours(avatar);
885
886 // Finally, kill the agent we just created at the destination.
887 m_interregionCommsOut.SendCloseAgent(reg.RegionHandle, avatar.UUID);
888
889 return;
890 }
891
892 // Can't go back from here
893 if (KiPrimitive != null)
894 {
895 KiPrimitive(avatar.LocalId);
896 }
897
898 avatar.MakeChildAgent();
899
900 // CrossAttachmentsIntoNewRegion is a synchronous call. We shouldn't need to wait after it
901 avatar.CrossAttachmentsIntoNewRegion(reg.RegionHandle, true);
902
903 // Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
904
905 if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
906 {
907 Thread.Sleep(5000);
908 avatar.Close();
909 CloseConnection(avatar.UUID);
910 }
911
912 // if (teleport success) // seems to be always success here
913 // the user may change their profile information in other region,
914 // so the userinfo in UserProfileCache is not reliable any more, delete it
915 if (avatar.Scene.NeedSceneCacheClear(avatar.UUID))
916 {
917 m_commsProvider.UserProfileCacheService.RemoveUser(avatar.UUID);
918 m_log.DebugFormat(
919 "[SCENE COMMUNICATION SERVICE]: User {0} is going to another region, profile cache removed",
920 avatar.UUID);
921 }
922 }
923 else
924 {
925 avatar.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
926 }
927 }
928 else
929 {
930 // TP to a place that doesn't exist (anymore)
931 // Inform the viewer about that
932 avatar.ControllingClient.SendTeleportFailed("The region you tried to teleport to doesn't exist anymore");
933
934 // and set the map-tile to '(Offline)'
935 uint regX, regY;
936 Utils.LongToUInts(regionHandle, out regX, out regY);
937
938 MapBlockData block = new MapBlockData();
939 block.X = (ushort)(regX / Constants.RegionSize);
940 block.Y = (ushort)(regY / Constants.RegionSize);
941 block.Access = 254; // == not there
942
943 List<MapBlockData> blocks = new List<MapBlockData>();
944 blocks.Add(block);
945 avatar.ControllingClient.SendMapBlock(blocks, 0);
946 }
947 }
948 }
949
950 protected bool WaitForCallback(UUID id)
951 {
952 int count = 20;
953 while (m_agentsInTransit.Contains(id) && count-- > 0)
954 {
955 //Console.WriteLine(" >>> Waiting... " + count);
956 Thread.Sleep(1000);
957 }
958
959 if (count > 0)
960 return true;
961 else
962 return false;
963 }
964
965 public bool ReleaseAgent(UUID id)
966 {
967 //Console.WriteLine(" >>> ReleaseAgent called <<< ");
968 return ResetFromTransit(id);
969 }
970
971 protected void SetInTransit(UUID id)
972 {
973 lock (m_agentsInTransit)
974 {
975 if (!m_agentsInTransit.Contains(id))
976 m_agentsInTransit.Add(id);
977 }
978 }
979
980 protected bool ResetFromTransit(UUID id)
981 {
982 lock (m_agentsInTransit)
983 {
984 if (m_agentsInTransit.Contains(id))
985 {
986 m_agentsInTransit.Remove(id);
987 return true;
988 }
989 }
990 return false;
991 }
992
993 private List<ulong> NeighbourHandles(List<SimpleRegionInfo> neighbours)
994 {
995 List<ulong> handles = new List<ulong>();
996 foreach (SimpleRegionInfo reg in neighbours)
997 {
998 handles.Add(reg.RegionHandle);
999 }
1000 return handles;
1001 }
1002
1003 private List<ulong> NewNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
1004 {
1005 return currentNeighbours.FindAll(delegate(ulong handle) { return !previousNeighbours.Contains(handle); });
1006 }
1007
1008// private List<ulong> CommonNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
1009// {
1010// return currentNeighbours.FindAll(delegate(ulong handle) { return previousNeighbours.Contains(handle); });
1011// }
1012
1013 private List<ulong> OldNeighbours(List<ulong> currentNeighbours, List<ulong> previousNeighbours)
1014 {
1015 return previousNeighbours.FindAll(delegate(ulong handle) { return !currentNeighbours.Contains(handle); });
1016 }
1017 /// <summary>
1018 /// Inform a neighbouring region that an avatar is about to cross into it.
1019 /// </summary>
1020 /// <param name="regionhandle"></param>
1021 /// <param name="agentID"></param>
1022 /// <param name="position"></param>
1023 public bool CrossToNeighbouringRegion(ulong regionhandle, UUID agentID, Vector3 position, bool isFlying)
1024 {
1025 return m_commsProvider.InterRegion.ExpectAvatarCrossing(regionhandle, agentID, position, isFlying);
1026 }
1027
1028 public bool PrimCrossToNeighboringRegion(ulong regionhandle, UUID primID, string objData, int XMLMethod)
1029 {
1030 return m_commsProvider.InterRegion.InformRegionOfPrimCrossing(regionhandle, primID, objData, XMLMethod);
1031 }
1032
1033 public Dictionary<string, string> GetGridSettings()
1034 {
1035 return m_commsProvider.GridService.GetGridSettings();
1036 }
1037
1038 public void LogOffUser(UUID userid, UUID regionid, ulong regionhandle, Vector3 position, Vector3 lookat)
1039 {
1040 m_commsProvider.LogOffUser(userid, regionid, regionhandle, position, lookat);
1041 }
1042
1043 // deprecated as of 2008-08-27
1044 public void LogOffUser(UUID userid, UUID regionid, ulong regionhandle, float posx, float posy, float posz)
1045 {
1046 m_commsProvider.LogOffUser(userid, regionid, regionhandle, posx, posy, posz);
1047 }
1048
1049 public void ClearUserAgent(UUID avatarID)
1050 {
1051 m_commsProvider.UserService.ClearUserAgent(avatarID);
1052 }
1053
1054 public void AddNewUserFriend(UUID friendlistowner, UUID friend, uint perms)
1055 {
1056 m_commsProvider.AddNewUserFriend(friendlistowner, friend, perms);
1057 }
1058
1059 public void UpdateUserFriendPerms(UUID friendlistowner, UUID friend, uint perms)
1060 {
1061 m_commsProvider.UpdateUserFriendPerms(friendlistowner, friend, perms);
1062 }
1063
1064 public void RemoveUserFriend(UUID friendlistowner, UUID friend)
1065 {
1066 m_commsProvider.RemoveUserFriend(friendlistowner, friend);
1067 }
1068
1069 public List<FriendListItem> GetUserFriendList(UUID friendlistowner)
1070 {
1071 return m_commsProvider.GetUserFriendList(friendlistowner);
1072 }
1073
1074 public List<MapBlockData> RequestNeighbourMapBlocks(int minX, int minY, int maxX, int maxY)
1075 {
1076 return m_commsProvider.GridService.RequestNeighbourMapBlocks(minX, minY, maxX, maxY);
1077 }
1078
1079 public List<AvatarPickerAvatar> GenerateAgentPickerRequestResponse(UUID queryID, string query)
1080 {
1081 return m_commsProvider.GenerateAgentPickerRequestResponse(queryID, query);
1082 }
1083
1084 public List<RegionInfo> RequestNamedRegions(string name, int maxNumber)
1085 {
1086 return m_commsProvider.GridService.RequestNamedRegions(name, maxNumber);
1087 }
1088
1089// private void Dump(string msg, List<ulong> handles)
1090// {
1091// Console.WriteLine("-------------- HANDLE DUMP ({0}) ---------", msg);
1092// foreach (ulong handle in handles)
1093// {
1094// uint x, y;
1095// Utils.LongToUInts(handle, out x, out y);
1096// x = x / Constants.RegionSize;
1097// y = y / Constants.RegionSize;
1098// Console.WriteLine("({0}, {1})", x, y);
1099// }
1100// }
1101 }
1102}
generated by cgit v1.1 at 2024-10-04 07:54:37 +0000