aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
blob: 46ad9dd81f33ca75af46ee0e95da59b663a4aa78 (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
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
/*
 * 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.IO;
using System.Net;
using System.Reflection;
using System.Text;
using System.Collections;

using OpenSim.Framework;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;

using OpenMetaverse;
using OpenMetaverse.StructuredData;
using log4net;
using Nini.Config;

namespace OpenSim.Services.Connectors.Simulation
{
    public class SimulationServiceConnector : ISimulationService
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        // we use this dictionary to track the pending updateagent requests, maps URI --> position update
        private Dictionary<string,AgentPosition> m_updateAgentQueue = new Dictionary<string,AgentPosition>();
        
        //private GridRegion m_Region;

        public SimulationServiceConnector()
        {
        }

        public SimulationServiceConnector(IConfigSource config)
        {
            //m_Region = region;
        }

        public IScene GetScene(ulong regionHandle)
        {
            return null;
        }

        public ISimulationService GetInnerService()
        {
            return null;
        }

        #region Agents

        protected virtual string AgentPath()
        {
            return "agent/";
        }

        /// <summary>
        /// 
        /// </summary>
        public bool CreateAgent(GridRegion destination, AgentCircuitData aCircuit, uint flags, out string reason)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CreateAgent start");
            
            reason = String.Empty;
            if (destination == null)
            {
                m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Given destination is null");
                return false;
            }

            string uri = destination.ServerURI + AgentPath() + aCircuit.AgentID + "/";
            
            try
            {
                OSDMap args = aCircuit.PackAgentCircuitData();

                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
                args["destination_name"] = OSD.FromString(destination.RegionName);
                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
                args["teleport_flags"] = OSD.FromString(flags.ToString());

                OSDMap result = WebUtil.PostToService(uri,args);
                if (result["Success"].AsBoolean())
                    return true;
                
                reason = result["Message"] != null ? result["Message"].AsString() : "error";
                return false;
            }
            catch (Exception e)
            {
                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: CreateAgent failed with exception: " + e.ToString());
                reason = e.Message;
            }

            return false;
        }

        /// <summary>
        /// Send complete data about an agent in this region to a neighbor
        /// </summary>
        public bool UpdateAgent(GridRegion destination, AgentData data)
        {
            return UpdateAgent(destination, (IAgentData)data);
        }

        /// <summary>
        /// Send updated position information about an agent in this region to a neighbor
        /// This operation may be called very frequently if an avatar is moving about in
        /// the region.
        /// </summary>
        public bool UpdateAgent(GridRegion destination, AgentPosition data)
        {
            // The basic idea of this code is that the first thread that needs to
            // send an update for a specific avatar becomes the worker for any subsequent
            // requests until there are no more outstanding requests. Further, only send the most
            // recent update; this *should* never be needed but some requests get
            // slowed down and once that happens the problem with service end point
            // limits kicks in and nothing proceeds
            string uri = destination.ServerURI + AgentPath() + data.AgentID + "/";
            lock (m_updateAgentQueue)
            {
                if (m_updateAgentQueue.ContainsKey(uri))
                {
                    // Another thread is already handling 
                    // updates for this simulator, just update 
                    // the position and return, overwrites are
                    // not a problem since we only care about the
                    // last update anyway
                    m_updateAgentQueue[uri] = data;
                    return true;
                }

                // Otherwise update the reference and start processing
                m_updateAgentQueue[uri] = data;
            }
            
            AgentPosition pos = null;
            while (true)
            {
                lock (m_updateAgentQueue)
                {
                    // save the position
                    AgentPosition lastpos = pos;

                    pos = m_updateAgentQueue[uri];

                    // this is true if no one put a new
                    // update in the map since the last
                    // one we processed, if thats the
                    // case then we are done
                    if (pos == lastpos)
                    {
                        m_updateAgentQueue.Remove(uri);
                        return true;
                    }
                }

                UpdateAgent(destination,(IAgentData)pos);
            }

            // unreachable
            return true;
        }

        /// <summary>
        /// This is the worker function to send AgentData to a neighbor region
        /// </summary>
        private bool UpdateAgent(GridRegion destination, IAgentData cAgentData)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: UpdateAgent start");

            // Eventually, we want to use a caps url instead of the agentID
            string uri = destination.ServerURI + AgentPath() + cAgentData.AgentID + "/";

            try
            {
                OSDMap args = cAgentData.Pack();

                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
                args["destination_name"] = OSD.FromString(destination.RegionName);
                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());

                OSDMap result = WebUtil.PutToService(uri,args);
                return result["Success"].AsBoolean();
            }
            catch (Exception e)
            {
                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString());
            }

            return false;
        }

        /// <summary>
        /// Not sure what sequence causes this function to be invoked. The only calling
        /// path is through the GET method 
        /// </summary>
        public bool RetrieveAgent(GridRegion destination, UUID id, out IAgentData agent)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: RetrieveAgent start");

            agent = null;

            // Eventually, we want to use a caps url instead of the agentID
            string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";

            try
            {
                OSDMap result = WebUtil.GetFromService(uri);
                if (result["Success"].AsBoolean())
                {
                    // OSDMap args = Util.GetOSDMap(result["_RawResult"].AsString());
                    OSDMap args = (OSDMap)result["_Result"];
                    if (args != null)
                    {
                        agent = new CompleteAgentData();
                        agent.Unpack(args);
                        return true;
                    }
                }
            }
            catch (Exception e)
            {
                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString());
            }

            return false;
        }

        /// <summary>
        /// </summary>
        public bool QueryAccess(GridRegion destination, UUID id, Vector3 position)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: QueryAccess start, position={0}", position);

            IPEndPoint ext = destination.ExternalEndPoint;
            if (ext == null) return false;

            // Eventually, we want to use a caps url instead of the agentID
            string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";

            OSDMap request = new OSDMap();
            request.Add("position", OSD.FromString(position.ToString()));

            try
            {
                OSDMap result = WebUtil.ServiceOSDRequest(uri, request, "QUERYACCESS", 10000);
                bool success = result["Success"].AsBoolean();
                if (!success)
                {
                    if (result.ContainsKey("Message"))
                    {
                        string message = result["Message"].AsString();
                        if (message == "Service request failed: [MethodNotAllowed] MethodNotAllowed") // Old style region
                        {
                            m_log.Info("[REMOTE SIMULATION CONNECTOR]: The above web util error was caused by a TP to a sim that doesn't support QUERYACCESS and can be ignored");
                            return true;
                        }
                    }
                }
                return success;
            }
            catch (Exception e)
            {
                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] QueryAcess failed with exception; {0}",e.ToString());
            }
            
            return false;
        }

        /// <summary>
        /// </summary>
        public bool ReleaseAgent(UUID origin, UUID id, string uri)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: ReleaseAgent start");

            try
            {
                WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000);
            }
            catch (Exception e)
            {
                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] ReleaseAgent failed with exception; {0}",e.ToString());
            }
            
            return true;
        }

        private bool CloseAgent(GridRegion destination, UUID id, bool ChildOnly)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CloseAgent start");

            string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";

            try
            {
                WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000);
            }
            catch (Exception e)
            {
                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CloseAgent failed with exception; {0}",e.ToString());
            }

            return true;
        }

        public bool CloseChildAgent(GridRegion destination, UUID id)
        {
            return CloseAgent(destination, id, true);
        }

        public bool CloseAgent(GridRegion destination, UUID id)
        {
            return CloseAgent(destination, id, false);
        }

        #endregion Agents

        #region Objects

        protected virtual string ObjectPath()
        {
            return "object/";
        }

        /// <summary>
        ///
        /// </summary>
        public bool CreateObject(GridRegion destination, ISceneObject sog, bool isLocalCall)
        {
            // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CreateObject start");

            string uri = destination.ServerURI + ObjectPath() + sog.UUID + "/";

            try
            {
                OSDMap args = new OSDMap(2);

                args["sog"] = OSD.FromString(sog.ToXml2());
                args["extra"] = OSD.FromString(sog.ExtraToXmlString());
                args["modified"] = OSD.FromBoolean(sog.HasGroupChanged);

                string state = sog.GetStateSnapshot();
                if (state.Length > 0)
                    args["state"] = OSD.FromString(state);

                // Add the input general arguments
                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
                args["destination_name"] = OSD.FromString(destination.RegionName);
                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());

                WebUtil.PostToService(uri, args);
            }
            catch (Exception e)
            {
                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CreateObject failed with exception; {0}",e.ToString());
            }

            return true;
        }

        /// <summary>
        ///
        /// </summary>
        public bool CreateObject(GridRegion destination, UUID userID, UUID itemID)
        {
            // TODO, not that urgent
            return false;
        }

        #endregion Objects
    }
}