aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/Framework/Scenes/Hypergrid/HGSceneCommunicationService.cs
blob: 5c99d7342cbe2622f83ea4a12e85e6f0c2b350fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
using System.Threading;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Client;
using OpenSim.Framework.Communications;
using OpenSim.Framework.Communications.Cache;
using OpenSim.Framework.Capabilities;
using OpenSim.Region.Framework.Interfaces;

namespace OpenSim.Region.Framework.Scenes.Hypergrid
{
    public class HGSceneCommunicationService : SceneCommunicationService
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        public readonly IHyperlink m_hg;

        public HGSceneCommunicationService(CommunicationsManager commsMan, IHyperlink hg) : base(commsMan)
        {
            m_hg = hg;
        }


        /// <summary>
        /// Try to teleport an agent to a new region.
        /// </summary>
        /// <param name="remoteClient"></param>
        /// <param name="RegionHandle"></param>
        /// <param name="position"></param>
        /// <param name="lookAt"></param>
        /// <param name="flags"></param>
        public override void RequestTeleportToLocation(ScenePresence avatar, ulong regionHandle, Vector3 position,
                                                      Vector3 lookAt, uint teleportFlags)
        {
            if (!avatar.Scene.Permissions.CanTeleport(avatar.UUID))
                return;

            bool destRegionUp = true;

            IEventQueue eq = avatar.Scene.RequestModuleInterface<IEventQueue>();

            // Reset animations; the viewer does that in teleports.
            avatar.ResetAnimations();

            if (regionHandle == m_regionInfo.RegionHandle)
            {
                // Teleport within the same region
                if (position.X < 0 || position.X > Constants.RegionSize || position.Y < 0 || position.Y > Constants.RegionSize || position.Z < 0)
                {
                    Vector3 emergencyPos = new Vector3(128, 128, 128);

                    m_log.WarnFormat(
                        "[HGSceneCommService]: RequestTeleportToLocation() was given an illegal position of {0} for avatar {1}, {2}.  Substituting {3}",
                        position, avatar.Name, avatar.UUID, emergencyPos);
                    position = emergencyPos;
                }
                // TODO: Get proper AVG Height
                float localAVHeight = 1.56f;
                
                float posZLimit = (float)avatar.Scene.Heightmap[(int)position.X, (int)position.Y];
                float newPosZ = posZLimit + localAVHeight;
                if (posZLimit >= (position.Z - (localAVHeight / 2)) && !(Single.IsInfinity(newPosZ) || Single.IsNaN(newPosZ)))
                {
                    position.Z = newPosZ;
                }

                // Only send this if the event queue is null
                if (eq == null)
                    avatar.ControllingClient.SendTeleportLocationStart();


                avatar.ControllingClient.SendLocalTeleport(position, lookAt, teleportFlags);
                avatar.Teleport(position);
            }
            else
            {
                RegionInfo reg = RequestNeighbouringRegionInfo(regionHandle);
                if (reg != null)
                {

                    uint newRegionX = (uint)(reg.RegionHandle >> 40);
                    uint newRegionY = (((uint)(reg.RegionHandle)) >> 8);
                    uint oldRegionX = (uint)(m_regionInfo.RegionHandle >> 40);
                    uint oldRegionY = (((uint)(m_regionInfo.RegionHandle)) >> 8);

                    ///
                    /// Hypergrid mod start
                    /// 
                    ///
                    bool isHyperLink = m_hg.IsHyperlinkRegion(reg.RegionHandle);
                    bool isHomeUser = true;
                    ulong realHandle = regionHandle;
                    CachedUserInfo uinfo = m_commsProvider.UserProfileCacheService.GetUserDetails(avatar.UUID);
                    if (uinfo != null)
                    {
                        isHomeUser = HGNetworkServersInfo.Singleton.IsLocalUser(uinfo.UserProfile);
                        realHandle = m_hg.FindRegionHandle(regionHandle);
                        m_log.Debug("XXX ---- home user? " + isHomeUser + " --- hyperlink? " + isHyperLink + " --- real handle: " + realHandle.ToString());
                    }
                    ///
                    /// Hypergrid mod stop
                    /// 
                    ///

                    if (eq == null)
                        avatar.ControllingClient.SendTeleportLocationStart();


                    // Let's do DNS resolution only once in this process, please!
                    // This may be a costly operation. The reg.ExternalEndPoint field is not a passive field,
                    // it's actually doing a lot of work.
                    IPEndPoint endPoint = reg.ExternalEndPoint;
                    if (endPoint.Address == null)
                    {
                        // Couldn't resolve the name. Can't TP, because the viewer wants IP addresses.
                        destRegionUp = false;
                    }

                    if (destRegionUp)
                    {
                        // Fixing a bug where teleporting while sitting results in the avatar ending up removed from
                        // both regions
                        if (avatar.ParentID != (uint)0)
                            avatar.StandUp();
                        
                        if (!avatar.ValidateAttachments())
                        {
                            avatar.ControllingClient.SendTeleportFailed("Inconsistent attachment state");
                            return;
                        }

                        // the avatar.Close below will clear the child region list. We need this below for (possibly)
                        // closing the child agents, so save it here (we need a copy as it is Clear()-ed).
                        //List<ulong> childRegions = new List<ulong>(avatar.GetKnownRegionList());
                        // Compared to ScenePresence.CrossToNewRegion(), there's no obvious code to handle a teleport
                        // failure at this point (unlike a border crossing failure).  So perhaps this can never fail
                        // once we reach here...
                        //avatar.Scene.RemoveCapsHandler(avatar.UUID);

                        string capsPath = String.Empty;
                        AgentCircuitData agentCircuit = avatar.ControllingClient.RequestClientInfo();
                        agentCircuit.BaseFolder = UUID.Zero;
                        agentCircuit.InventoryFolder = UUID.Zero;
                        agentCircuit.startpos = position;
                        agentCircuit.child = true;
                        if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY))
                        {
                            // brand new agent, let's create a new caps seed
                            agentCircuit.CapsPath = CapsUtil.GetRandomCapsObjectPath();
                        }

                        string reason = String.Empty;

                        //if (!m_commsProvider.InterRegion.InformRegionOfChildAgent(reg.RegionHandle, agentCircuit))
                        if (!m_interregionCommsOut.SendCreateChildAgent(reg.RegionHandle, agentCircuit, out reason))
                        {
                            avatar.ControllingClient.SendTeleportFailed(String.Format("Destination is not accepting teleports: {0}",
                                                                                      reason));
                            return;
                        }

                        // Let's close some agents
                        if (isHyperLink) // close them all except this one
                        {
                            List<ulong> regions = new List<ulong>(avatar.KnownChildRegionHandles);
                            regions.Remove(avatar.Scene.RegionInfo.RegionHandle);
                            SendCloseChildAgentConnections(avatar.UUID, regions);
                        }
                        else // close just a few
                            avatar.CloseChildAgents(newRegionX, newRegionY);

                        if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY) || isHyperLink)
                        {
                            capsPath 
                                = "http://" 
                                    + reg.ExternalHostName 
                                    + ":"
                                    + reg.HttpPort 
                                    + CapsUtil.GetCapsSeedPath(agentCircuit.CapsPath);

                            if (eq != null)
                            {
                                #region IP Translation for NAT
                                IClientIPEndpoint ipepClient;
                                if (avatar.ClientView.TryGet(out ipepClient))
                                {
                                    endPoint.Address = NetworkUtil.GetIPFor(ipepClient.EndPoint, endPoint.Address);
                                }
                                #endregion

                                eq.EnableSimulator(realHandle, endPoint, avatar.UUID);

                                // ES makes the client send a UseCircuitCode message to the destination, 
                                // which triggers a bunch of things there.
                                // So let's wait
                                Thread.Sleep(2000);

                                eq.EstablishAgentCommunication(avatar.UUID, endPoint, capsPath);
                            }
                            else
                            {
                                avatar.ControllingClient.InformClientOfNeighbour(realHandle, endPoint);
                                // TODO: make Event Queue disablable!
                            }
                        }
                        else
                        {
                            // child agent already there
                            agentCircuit.CapsPath = avatar.Scene.CapsModule.GetChildSeed(avatar.UUID, reg.RegionHandle);
                            capsPath = "http://" + reg.ExternalHostName + ":" + reg.HttpPort
                                        + "/CAPS/" + agentCircuit.CapsPath + "0000/";
                        }
                        
                        //m_commsProvider.InterRegion.ExpectAvatarCrossing(reg.RegionHandle, avatar.ControllingClient.AgentId,
                        //                                                      position, false);

                        //if (!m_commsProvider.InterRegion.ExpectAvatarCrossing(reg.RegionHandle, avatar.ControllingClient.AgentId,
                        //                                                      position, false))
                        //{
                        //    avatar.ControllingClient.SendTeleportFailed("Problem with destination.");
                        //    // We should close that agent we just created over at destination...
                        //    List<ulong> lst = new List<ulong>();
                        //    lst.Add(realHandle);
                        //    SendCloseChildAgentAsync(avatar.UUID, lst);
                        //    return;
                        //}

                        SetInTransit(avatar.UUID);
                        // Let's send a full update of the agent. This is a synchronous call.
                        AgentData agent = new AgentData();
                        avatar.CopyTo(agent);
                        agent.Position = position;
                        agent.CallbackURI = "http://" + m_regionInfo.ExternalHostName + ":" + m_regionInfo.HttpPort +
                            "/agent/" + avatar.UUID.ToString() + "/" + avatar.Scene.RegionInfo.RegionHandle.ToString() + "/release/";

                        m_interregionCommsOut.SendChildAgentUpdate(reg.RegionHandle, agent);

                        m_log.DebugFormat(
                            "[CAPS]: Sending new CAPS seed url {0} to client {1}", agentCircuit.CapsPath, avatar.UUID);


                        ///
                        /// Hypergrid mod: realHandle instead of reg.RegionHandle
                        /// 
                        ///
                        if (eq != null)
                        {
                            eq.TeleportFinishEvent(realHandle, 13, endPoint,
                                                   4, teleportFlags, capsPath, avatar.UUID);
                        }
                        else
                        {
                            avatar.ControllingClient.SendRegionTeleport(realHandle, 13, endPoint, 4,
                                                                        teleportFlags, capsPath);
                        }
                        ///
                        /// Hypergrid mod stop
                        /// 


                        // TeleportFinish makes the client send CompleteMovementIntoRegion (at the destination), which
                        // trigers a whole shebang of things there, including MakeRoot. So let's wait for confirmation
                        // that the client contacted the destination before we send the attachments and close things here.
                        if (!WaitForCallback(avatar.UUID))
                        {
                            // Client never contacted destination. Let's restore everything back
                            avatar.ControllingClient.SendTeleportFailed("Problems connecting to destination.");

                            ResetFromTransit(avatar.UUID);
                            // Yikes! We should just have a ref to scene here.
                            avatar.Scene.InformClientOfNeighbours(avatar);

                            // Finally, kill the agent we just created at the destination.
                            m_interregionCommsOut.SendCloseAgent(reg.RegionHandle, avatar.UUID);

                            return;
                        }

                        // Can't go back from here
                        if (KiPrimitive != null)
                        {
                            KiPrimitive(avatar.LocalId);
                        }

                        avatar.MakeChildAgent();

                        // CrossAttachmentsIntoNewRegion is a synchronous call. We shouldn't need to wait after it
                        avatar.CrossAttachmentsIntoNewRegion(reg.RegionHandle, true);

                        
                        // Finally, let's close this previously-known-as-root agent, when the jump is outside the view zone
                        ///
                        /// Hypergrid mod: extra check for isHyperLink
                        /// 
                        if (Util.IsOutsideView(oldRegionX, newRegionX, oldRegionY, newRegionY) || isHyperLink)
                        {
                            Thread.Sleep(5000);
                            avatar.Close();
                            CloseConnection(avatar.UUID);
                        }
                        // if (teleport success) // seems to be always success here
                        // the user may change their profile information in other region,
                        // so the userinfo in UserProfileCache is not reliable any more, delete it
                        if (avatar.Scene.NeedSceneCacheClear(avatar.UUID) || isHyperLink)
                        {
                            m_commsProvider.UserProfileCacheService.RemoveUser(avatar.UUID);
                            m_log.DebugFormat(
                                "[HGSceneCommService]: User {0} is going to another region, profile cache removed",
                                avatar.UUID);                            
                        }
                    }
                    else
                    {
                        avatar.ControllingClient.SendTeleportFailed("Remote Region appears to be down");
                    }
                }
                else
                {
                    // TP to a place that doesn't exist (anymore)
                    // Inform the viewer about that
                    avatar.ControllingClient.SendTeleportFailed("The region you tried to teleport to doesn't exist anymore");

                    // and set the map-tile to '(Offline)'
                    uint regX, regY;
                    Utils.LongToUInts(regionHandle, out regX, out regY);

                    MapBlockData block = new MapBlockData();
                    block.X = (ushort)(regX / Constants.RegionSize);
                    block.Y = (ushort)(regY / Constants.RegionSize);
                    block.Access = 254; // == not there

                    List<MapBlockData> blocks = new List<MapBlockData>();
                    blocks.Add(block);
                    avatar.ControllingClient.SendMapBlock(blocks, 0);
                }
            }
        }

    }
}