aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/OptionalModules/Avatar/Voice/FreeSwitchVoice/FreeSwitchVoiceModule.cs
blob: 45af21239851917a6ec2808f9d172f7c1d423542 (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
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
/*
 * 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.IO;
using System.Net;
using System.Net.Security;
using System.Web;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Xml;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
using log4net;
using Nini.Config;
using Nwc.XmlRpc;
using OpenSim.Framework;
using Mono.Addins;

using OpenSim.Framework.Capabilities;
using OpenSim.Framework.Servers;
using OpenSim.Framework.Servers.HttpServer;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using Caps = OpenSim.Framework.Capabilities.Caps;
using System.Text.RegularExpressions;
using OpenSim.Server.Base;
using OpenSim.Services.Interfaces;
using OSDMap = OpenMetaverse.StructuredData.OSDMap;

namespace OpenSim.Region.OptionalModules.Avatar.Voice.FreeSwitchVoice
{
    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "FreeSwitchVoiceModule")]
    public class FreeSwitchVoiceModule : ISharedRegionModule, IVoiceModule
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        // Capability string prefixes
        private static readonly string m_parcelVoiceInfoRequestPath = "0207/";
        private static readonly string m_provisionVoiceAccountRequestPath = "0208/";
        //private static readonly string m_chatSessionRequestPath = "0209/";

        // Control info
        private static bool   m_Enabled  = false;

        // FreeSwitch server is going to contact us and ask us all
        // sorts of things.

        // SLVoice client will do a GET on this prefix
        private static string m_freeSwitchAPIPrefix;

        // We need to return some information to SLVoice
        // figured those out via curl
        // http://vd1.vivox.com/api2/viv_get_prelogin.php
        //
        // need to figure out whether we do need to return ALL of
        // these...
        private static string m_freeSwitchRealm;
        private static string m_freeSwitchSIPProxy;
        private static bool m_freeSwitchAttemptUseSTUN;
        private static string m_freeSwitchEchoServer;
        private static int m_freeSwitchEchoPort;
        private static string m_freeSwitchDefaultWellKnownIP;
        private static int m_freeSwitchDefaultTimeout;
        private static string m_freeSwitchUrlResetPassword;
        private uint m_freeSwitchServicePort;
        private string m_openSimWellKnownHTTPAddress;
//        private string m_freeSwitchContext;

        private readonly Dictionary<string, string> m_UUIDName = new Dictionary<string, string>();
        private Dictionary<string, string> m_ParcelAddress = new Dictionary<string, string>();

        private IConfig m_Config;

        private IFreeswitchService m_FreeswitchService;

        public void Initialise(IConfigSource config)
        {
            m_Config = config.Configs["FreeSwitchVoice"];

            if (m_Config == null)
                return;

            if (!m_Config.GetBoolean("Enabled", false))
                return;

            try
            {
                string serviceDll = m_Config.GetString("LocalServiceModule",
                        String.Empty);

                if (serviceDll == String.Empty)
                {
                    m_log.Error("[FreeSwitchVoice]: No LocalServiceModule named in section FreeSwitchVoice.  Not starting.");
                    return;
                }

                Object[] args = new Object[] { config };
                m_FreeswitchService = ServerUtils.LoadPlugin<IFreeswitchService>(serviceDll, args);

                string jsonConfig = m_FreeswitchService.GetJsonConfig();
                //m_log.Debug("[FreeSwitchVoice]: Configuration string: " + jsonConfig);
                OSDMap map = (OSDMap)OSDParser.DeserializeJson(jsonConfig);

                m_freeSwitchAPIPrefix = map["APIPrefix"].AsString();
                m_freeSwitchRealm = map["Realm"].AsString();
                m_freeSwitchSIPProxy = map["SIPProxy"].AsString();
                m_freeSwitchAttemptUseSTUN = map["AttemptUseSTUN"].AsBoolean();
                m_freeSwitchEchoServer = map["EchoServer"].AsString();
                m_freeSwitchEchoPort = map["EchoPort"].AsInteger();
                m_freeSwitchDefaultWellKnownIP = map["DefaultWellKnownIP"].AsString();
                m_freeSwitchDefaultTimeout = map["DefaultTimeout"].AsInteger();
                m_freeSwitchUrlResetPassword = String.Empty;
//                m_freeSwitchContext = map["Context"].AsString();

                if (String.IsNullOrEmpty(m_freeSwitchRealm) ||
                    String.IsNullOrEmpty(m_freeSwitchAPIPrefix))
                {
                    m_log.Error("[FreeSwitchVoice]: Freeswitch service mis-configured.  Not starting.");                    
                    return;
                }

                // set up http request handlers for
                // - prelogin: viv_get_prelogin.php
                // - signin: viv_signin.php
                // - buddies: viv_buddy.php
                // - ???: viv_watcher.php
                // - signout: viv_signout.php
                MainServer.Instance.AddHTTPHandler(String.Format("{0}/viv_get_prelogin.php", m_freeSwitchAPIPrefix),
                                                     FreeSwitchSLVoiceGetPreloginHTTPHandler);

                MainServer.Instance.AddHTTPHandler(String.Format("{0}/freeswitch-config", m_freeSwitchAPIPrefix), FreeSwitchConfigHTTPHandler);

                // RestStreamHandler h = new
                // RestStreamHandler("GET",
                // String.Format("{0}/viv_get_prelogin.php", m_freeSwitchAPIPrefix), FreeSwitchSLVoiceGetPreloginHTTPHandler);
                //  MainServer.Instance.AddStreamHandler(h);

                MainServer.Instance.AddHTTPHandler(String.Format("{0}/viv_signin.php", m_freeSwitchAPIPrefix),
                                 FreeSwitchSLVoiceSigninHTTPHandler);

                MainServer.Instance.AddHTTPHandler(String.Format("{0}/viv_buddy.php", m_freeSwitchAPIPrefix),
                                 FreeSwitchSLVoiceBuddyHTTPHandler);
                
                MainServer.Instance.AddHTTPHandler(String.Format("{0}/viv_watcher.php", m_freeSwitchAPIPrefix),
                                 FreeSwitchSLVoiceWatcherHTTPHandler);                

                m_log.InfoFormat("[FreeSwitchVoice]: using FreeSwitch server {0}", m_freeSwitchRealm);

                m_Enabled = true;

                m_log.Info("[FreeSwitchVoice]: plugin enabled");
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[FreeSwitchVoice]: plugin initialization failed: {0} {1}", e.Message, e.StackTrace);
                return;
            }

            // This here is a region module trying to make a global setting.
            // Not really a good idea but it's Windows only, so I can't test.
            try
            {
                ServicePointManager.ServerCertificateValidationCallback += CustomCertificateValidation;
            }
            catch (NotImplementedException)
            {
                try
                {
#pragma warning disable 0612, 0618
                    // Mono does not implement the ServicePointManager.ServerCertificateValidationCallback yet!  Don't remove this!
                    ServicePointManager.CertificatePolicy = new MonoCert();
#pragma warning restore 0612, 0618
                }
                catch (Exception)
                {
                    // COmmented multiline spam log message
                    //m_log.Error("[FreeSwitchVoice]: Certificate validation handler change not supported.  You may get ssl certificate validation errors teleporting from your region to some SSL regions.");
                }
            }
        }

        public void PostInitialise()
        {
        }

        public void AddRegion(Scene scene)
        {
            // We generate these like this: The region's external host name
            // as defined in Regions.ini is a good address to use. It's a
            // dotted quad (or should be!) and it can reach this host from
            // a client. The port is grabbed from the region's HTTP server.
            m_openSimWellKnownHTTPAddress = scene.RegionInfo.ExternalHostName;
            m_freeSwitchServicePort = MainServer.Instance.Port;

            if (m_Enabled)
            {
                // we need to capture scene in an anonymous method
                // here as we need it later in the callbacks
                scene.EventManager.OnRegisterCaps += delegate(UUID agentID, Caps caps)
                    {
                        OnRegisterCaps(scene, agentID, caps);
                    };
            }
        }

        public void RemoveRegion(Scene scene)
        {
        }

        public void RegionLoaded(Scene scene)
        {
            if (m_Enabled)
            {
                m_log.Info("[FreeSwitchVoice]: registering IVoiceModule with the scene");

                // register the voice interface for this module, so the script engine can call us
                scene.RegisterModuleInterface<IVoiceModule>(this);
            }
        }

        public void Close()
        {
        }

        public string Name
        {
            get { return "FreeSwitchVoiceModule"; }
        }

        public Type ReplaceableInterface
        {
            get { return null; }
        }

        // <summary>
        // implementation of IVoiceModule, called by osSetParcelSIPAddress script function
        // </summary>
        public void setLandSIPAddress(string SIPAddress,UUID GlobalID)
        {
            m_log.DebugFormat("[FreeSwitchVoice]: setLandSIPAddress parcel id {0}: setting sip address {1}",
                                  GlobalID, SIPAddress);

            lock (m_ParcelAddress)
            {
                if (m_ParcelAddress.ContainsKey(GlobalID.ToString()))
                {
                    m_ParcelAddress[GlobalID.ToString()] = SIPAddress;
                }
                else
                {
                    m_ParcelAddress.Add(GlobalID.ToString(), SIPAddress);
                }
            }
        }

        // <summary>
        // OnRegisterCaps is invoked via the scene.EventManager
        // everytime OpenSim hands out capabilities to a client
        // (login, region crossing). We contribute two capabilities to
        // the set of capabilities handed back to the client:
        // ProvisionVoiceAccountRequest and ParcelVoiceInfoRequest.
        //
        // ProvisionVoiceAccountRequest allows the client to obtain
        // the voice account credentials for the avatar it is
        // controlling (e.g., user name, password, etc).
        //
        // ParcelVoiceInfoRequest is invoked whenever the client
        // changes from one region or parcel to another.
        //
        // Note that OnRegisterCaps is called here via a closure
        // delegate containing the scene of the respective region (see
        // Initialise()).
        // </summary>
        public void OnRegisterCaps(Scene scene, UUID agentID, Caps caps)
        {
            m_log.DebugFormat(
                "[FreeSwitchVoice]: OnRegisterCaps() called with agentID {0} caps {1} in scene {2}", 
                agentID, caps, scene.RegionInfo.RegionName);

            string capsBase = "/CAPS/" + caps.CapsObjectPath;
            caps.RegisterHandler(
                "ProvisionVoiceAccountRequest",
                new RestStreamHandler(
                    "POST",
                    capsBase + m_provisionVoiceAccountRequestPath,
                    (request, path, param, httpRequest, httpResponse)
                        => ProvisionVoiceAccountRequest(scene, request, path, param, agentID, caps),
                    "ProvisionVoiceAccountRequest",
                    agentID.ToString()));

            caps.RegisterHandler(
                "ParcelVoiceInfoRequest",
                new RestStreamHandler(
                    "POST",
                    capsBase + m_parcelVoiceInfoRequestPath,
                        (request, path, param, httpRequest, httpResponse)
                            => ParcelVoiceInfoRequest(scene, request, path, param, agentID, caps),
                    "ParcelVoiceInfoRequest",
                    agentID.ToString()));

            //caps.RegisterHandler(
            //    "ChatSessionRequest",
            //    new RestStreamHandler(
            //        "POST",
            //        capsBase + m_chatSessionRequestPath,
            //                (request, path, param, httpRequest, httpResponse)
            //                    => ChatSessionRequest(scene, request, path, param, agentID, caps),
            //        "ChatSessionRequest",
            //        agentID.ToString()));
        }

        /// <summary>
        /// Callback for a client request for Voice Account Details
        /// </summary>
        /// <param name="scene">current scene object of the client</param>
        /// <param name="request"></param>
        /// <param name="path"></param>
        /// <param name="param"></param>
        /// <param name="agentID"></param>
        /// <param name="caps"></param>
        /// <returns></returns>
        public string ProvisionVoiceAccountRequest(Scene scene, string request, string path, string param,
                                                   UUID agentID, Caps caps)
        {
            m_log.DebugFormat(
                "[FreeSwitchVoice][PROVISIONVOICE]: ProvisionVoiceAccountRequest() request: {0}, path: {1}, param: {2}", request, path, param);
            
            ScenePresence avatar = scene.GetScenePresence(agentID);
            if (avatar == null)
            {
                System.Threading.Thread.Sleep(2000);
                avatar = scene.GetScenePresence(agentID);

                if (avatar == null)
                    return "<llsd>undef</llsd>";
            }
            string avatarName = avatar.Name;

            try
            {
                //XmlElement    resp;
                string agentname = "x" + Convert.ToBase64String(agentID.GetBytes());
                string password  = "1234";//temp hack//new UUID(Guid.NewGuid()).ToString().Replace('-','Z').Substring(0,16);

                // XXX: we need to cache the voice credentials, as
                // FreeSwitch is later going to come and ask us for
                // those
                agentname = agentname.Replace('+', '-').Replace('/', '_');

                lock (m_UUIDName)
                {
                    if (m_UUIDName.ContainsKey(agentname))
                    {
                        m_UUIDName[agentname] = avatarName;
                    }
                    else
                    {
                        m_UUIDName.Add(agentname, avatarName);
                    }
                }

                // LLSDVoiceAccountResponse voiceAccountResponse =
               //     new LLSDVoiceAccountResponse(agentname, password, m_freeSwitchRealm, "http://etsvc02.hursley.ibm.com/api");
               LLSDVoiceAccountResponse voiceAccountResponse =
                   new LLSDVoiceAccountResponse(agentname, password, m_freeSwitchRealm,
                                                String.Format("http://{0}:{1}{2}/", m_openSimWellKnownHTTPAddress,
                                                              m_freeSwitchServicePort, m_freeSwitchAPIPrefix));

                string r = LLSDHelpers.SerialiseLLSDReply(voiceAccountResponse);

//                m_log.DebugFormat("[FreeSwitchVoice][PROVISIONVOICE]: avatar \"{0}\": {1}", avatarName, r);

                return r;
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[FreeSwitchVoice][PROVISIONVOICE]: avatar \"{0}\": {1}, retry later", avatarName, e.Message);
                m_log.DebugFormat("[FreeSwitchVoice][PROVISIONVOICE]: avatar \"{0}\": {1} failed", avatarName, e.ToString());

                return "<llsd>undef</llsd>";
            }
        }

        /// <summary>
        /// Callback for a client request for ParcelVoiceInfo
        /// </summary>
        /// <param name="scene">current scene object of the client</param>
        /// <param name="request"></param>
        /// <param name="path"></param>
        /// <param name="param"></param>
        /// <param name="agentID"></param>
        /// <param name="caps"></param>
        /// <returns></returns>
        public string ParcelVoiceInfoRequest(Scene scene, string request, string path, string param,
                                             UUID agentID, Caps caps)
        {
            m_log.DebugFormat(
                "[FreeSwitchVoice][PARCELVOICE]: ParcelVoiceInfoRequest() on {0} for {1}", 
                scene.RegionInfo.RegionName, agentID);
            
            ScenePresence avatar = scene.GetScenePresence(agentID);
            string avatarName = avatar.Name;

            // - check whether we have a region channel in our cache
            // - if not:
            //       create it and cache it
            // - send it to the client
            // - send channel_uri: as "sip:regionID@m_sipDomain"
            try
            {
                LLSDParcelVoiceInfoResponse parcelVoiceInfo;
                string channelUri;

                if (null == scene.LandChannel)
                    throw new Exception(String.Format("region \"{0}\": avatar \"{1}\": land data not yet available",
                                                      scene.RegionInfo.RegionName, avatarName));

                // get channel_uri: check first whether estate
                // settings allow voice, then whether parcel allows
                // voice, if all do retrieve or obtain the parcel
                // voice channel
                LandData land = scene.GetLandData(avatar.AbsolutePosition);

                //m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": request: {4}, path: {5}, param: {6}",
                //                  scene.RegionInfo.RegionName, land.Name, land.LocalID, avatarName, request, path, param);

                // TODO: EstateSettings don't seem to get propagated...
                // if (!scene.RegionInfo.EstateSettings.AllowVoice)
                // {
                //     m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": voice not enabled in estate settings",
                //                       scene.RegionInfo.RegionName);
                //     channel_uri = String.Empty;
                // }
                // else

                if ((land.Flags & (uint)ParcelFlags.AllowVoiceChat) == 0)
                {
//                    m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": voice not enabled for parcel",
//                                      scene.RegionInfo.RegionName, land.Name, land.LocalID, avatarName);
                    channelUri = String.Empty;
                }
                else
                {
                    channelUri = ChannelUri(scene, land);
                }

                // fill in our response to the client
                Hashtable creds = new Hashtable();
                creds["channel_uri"] = channelUri;

                parcelVoiceInfo = new LLSDParcelVoiceInfoResponse(scene.RegionInfo.RegionName, land.LocalID, creds);
                string r = LLSDHelpers.SerialiseLLSDReply(parcelVoiceInfo);

//                m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": Parcel \"{1}\" ({2}): avatar \"{3}\": {4}",
//                                  scene.RegionInfo.RegionName, land.Name, land.LocalID, avatarName, r);
                return r;
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": avatar \"{1}\": {2}, retry later",
                                  scene.RegionInfo.RegionName, avatarName, e.Message);
                m_log.DebugFormat("[FreeSwitchVoice][PARCELVOICE]: region \"{0}\": avatar \"{1}\": {2} failed",
                                  scene.RegionInfo.RegionName, avatarName, e.ToString());

                return "<llsd>undef</llsd>";
            }
        }

        /// <summary>
        /// Callback for a client request for ChatSessionRequest
        /// </summary>
        /// <param name="scene">current scene object of the client</param>
        /// <param name="request"></param>
        /// <param name="path"></param>
        /// <param name="param"></param>
        /// <param name="agentID"></param>
        /// <param name="caps"></param>
        /// <returns></returns>
        public string ChatSessionRequest(Scene scene, string request, string path, string param,
                                         UUID agentID, Caps caps)
        {
            ScenePresence avatar = scene.GetScenePresence(agentID);
            string        avatarName = avatar.Name;

            m_log.DebugFormat("[FreeSwitchVoice][CHATSESSION]: avatar \"{0}\": request: {1}, path: {2}, param: {3}",
                              avatarName, request, path, param);
            
            return "<llsd>true</llsd>";
        }

        public Hashtable ForwardProxyRequest(Hashtable request)
        {
            m_log.Debug("[PROXYING]: -------------------------------proxying request");
            Hashtable response = new Hashtable();
            response["content_type"] = "text/xml";
            response["str_response_string"] = "";
            response["int_response_code"] = 200;

            string forwardaddress = "https://www.bhr.vivox.com/api2/";
            string body = (string)request["body"];
            string method = (string) request["http-method"];
            string contenttype = (string) request["content-type"];
            string uri = (string) request["uri"];
            uri = uri.Replace("/api/", "");
            forwardaddress += uri;


            string fwdresponsestr = "";
            int fwdresponsecode = 200;
            string fwdresponsecontenttype = "text/xml";

            HttpWebRequest forwardreq = (HttpWebRequest)WebRequest.Create(forwardaddress);
            forwardreq.Method = method;
            forwardreq.ContentType = contenttype;
            forwardreq.KeepAlive = false;

            if (method == "POST")
            {
                byte[] contentreq = Util.UTF8.GetBytes(body);
                forwardreq.ContentLength = contentreq.Length;
                Stream reqStream = forwardreq.GetRequestStream();
                reqStream.Write(contentreq, 0, contentreq.Length);
                reqStream.Close();
            }

            using (HttpWebResponse fwdrsp = (HttpWebResponse)forwardreq.GetResponse())
            {
                Encoding encoding = Util.UTF8;

                using (Stream s = fwdrsp.GetResponseStream())
                {
                    using (StreamReader fwdresponsestream = new StreamReader(s))
                    {
                        fwdresponsestr = fwdresponsestream.ReadToEnd();
                        fwdresponsecontenttype = fwdrsp.ContentType;
                        fwdresponsecode = (int)fwdrsp.StatusCode;
                    }
                }
            }

            response["content_type"] = fwdresponsecontenttype;
            response["str_response_string"] = fwdresponsestr;
            response["int_response_code"] = fwdresponsecode;

            return response;
        }

        public Hashtable FreeSwitchSLVoiceGetPreloginHTTPHandler(Hashtable request)
        {
            m_log.Debug("[FreeSwitchVoice]: FreeSwitchSLVoiceGetPreloginHTTPHandler called");

            Hashtable response = new Hashtable();
            response["content_type"] = "text/xml";
            response["keepalive"] = false;

            response["str_response_string"] = String.Format(
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n" +
                "<VCConfiguration>\r\n"+
                    "<DefaultRealm>{0}</DefaultRealm>\r\n" +
                    "<DefaultSIPProxy>{1}</DefaultSIPProxy>\r\n"+
                    "<DefaultAttemptUseSTUN>{2}</DefaultAttemptUseSTUN>\r\n"+
                    "<DefaultEchoServer>{3}</DefaultEchoServer>\r\n"+
                    "<DefaultEchoPort>{4}</DefaultEchoPort>\r\n"+
                    "<DefaultWellKnownIP>{5}</DefaultWellKnownIP>\r\n"+
                    "<DefaultTimeout>{6}</DefaultTimeout>\r\n"+
                    "<UrlResetPassword>{7}</UrlResetPassword>\r\n"+
                    "<UrlPrivacyNotice>{8}</UrlPrivacyNotice>\r\n"+
                    "<UrlEulaNotice/>\r\n"+
                    "<App.NoBottomLogo>false</App.NoBottomLogo>\r\n"+
                "</VCConfiguration>",
                m_freeSwitchRealm, m_freeSwitchSIPProxy, m_freeSwitchAttemptUseSTUN,
                m_freeSwitchEchoServer, m_freeSwitchEchoPort,
                m_freeSwitchDefaultWellKnownIP, m_freeSwitchDefaultTimeout,
                m_freeSwitchUrlResetPassword, "");

            response["int_response_code"] = 200;

            //m_log.DebugFormat("[FreeSwitchVoice] FreeSwitchSLVoiceGetPreloginHTTPHandler return {0}",response["str_response_string"]);
            return response;
        }

        public Hashtable FreeSwitchSLVoiceBuddyHTTPHandler(Hashtable request)
        {
            m_log.Debug("[FreeSwitchVoice]: FreeSwitchSLVoiceBuddyHTTPHandler called");
            
            Hashtable response = new Hashtable();
            response["int_response_code"] = 200;
            response["str_response_string"] = string.Empty;
            response["content-type"] = "text/xml";

            Hashtable requestBody = ParseRequestBody((string)request["body"]);

            if (!requestBody.ContainsKey("auth_token"))
                return response;

            string auth_token = (string)requestBody["auth_token"];
            //string[] auth_tokenvals = auth_token.Split(':');
            //string username = auth_tokenvals[0];
            int strcount = 0;

            string[] ids = new string[strcount];

            int iter = -1;
            lock (m_UUIDName)
            {
                strcount = m_UUIDName.Count;
                ids = new string[strcount];
                foreach (string s in m_UUIDName.Keys)
                {
                    iter++;
                    ids[iter] = s;
                }
            }
            StringBuilder resp = new StringBuilder();
            resp.Append("<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?><response xmlns=\"http://www.vivox.com\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation= \"/xsd/buddy_list.xsd\">");

            resp.Append(string.Format(@"<level0>
                        <status>OK</status>
                        <cookie_name>lib_session</cookie_name>
                        <cookie>{0}</cookie>
                        <auth_token>{0}</auth_token>
                        <body>
                            <buddies>",auth_token));
            /*
                        <cookie_name>lib_session</cookie_name>
                        <cookie>{0}:{1}:9303959503950::</cookie>
                        <auth_token>{0}:{1}:9303959503950::</auth_token>
            */
            for (int i=0;i<ids.Length;i++)
            {
                DateTime currenttime = DateTime.Now;
                string dt = currenttime.ToString("yyyy-MM-dd HH:mm:ss.0zz");
                resp.Append(
                    string.Format(@"<level3>
                                    <bdy_id>{1}</bdy_id>
                                    <bdy_data></bdy_data>
                                    <bdy_uri>sip:{0}@{2}</bdy_uri>
                                    <bdy_nickname>{0}</bdy_nickname>
                                    <bdy_username>{0}</bdy_username>
                                    <bdy_domain>{2}</bdy_domain>
                                    <bdy_status>A</bdy_status>
                                    <modified_ts>{3}</modified_ts>
                                    <b2g_group_id></b2g_group_id>
                                </level3>", ids[i], i ,m_freeSwitchRealm, dt));
            }

            resp.Append("</buddies><groups></groups></body></level0></response>");

            response["str_response_string"] = resp.ToString();
//            Regex normalizeEndLines = new Regex(@"(\r\n|\n)", RegexOptions.Compiled | RegexOptions.Singleline | RegexOptions.Multiline);
//
//            m_log.DebugFormat(
//                "[FREESWITCH]: FreeSwitchSLVoiceBuddyHTTPHandler() response {0}", 
//                normalizeEndLines.Replace((string)response["str_response_string"],""));
            
            return response;
        }

        public Hashtable FreeSwitchSLVoiceWatcherHTTPHandler(Hashtable request)
        {
            m_log.Debug("[FreeSwitchVoice]: FreeSwitchSLVoiceWatcherHTTPHandler called");
            
            Hashtable response = new Hashtable();
            response["int_response_code"] = 200;
            response["content-type"] = "text/xml";

            Hashtable requestBody = ParseRequestBody((string)request["body"]);

            string auth_token = (string)requestBody["auth_token"];
            //string[] auth_tokenvals = auth_token.Split(':');
            //string username = auth_tokenvals[0];

            StringBuilder resp = new StringBuilder();
            resp.Append("<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?><response xmlns=\"http://www.vivox.com\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation= \"/xsd/buddy_list.xsd\">");
            
            // FIXME: This is enough of a response to stop viewer 2 complaining about a login failure and get voice to work.  If we don't 
            // give an OK response, then viewer 2 engages in an continuous viv_signin.php, viv_buddy.php, viv_watcher.php loop
            // Viewer 1 appeared happy to ignore the lack of reply and still works with this reply.
            //
            // However, really we need to fill in whatever watcher data should be here (whatever that is).
            resp.Append(string.Format(@"<level0>
                        <status>OK</status>
                        <cookie_name>lib_session</cookie_name>
                        <cookie>{0}</cookie>
                        <auth_token>{0}</auth_token>
                        <body/></level0></response>", auth_token));            
            
            response["str_response_string"] = resp.ToString();
            
//            Regex normalizeEndLines = new Regex(@"(\r\n|\n)", RegexOptions.Compiled | RegexOptions.Singleline | RegexOptions.Multiline);
//
//            m_log.DebugFormat(
//                "[FREESWITCH]: FreeSwitchSLVoiceWatcherHTTPHandler() response {0}", 
//                normalizeEndLines.Replace((string)response["str_response_string"],""));
            
            return response;
        }
        
        public Hashtable FreeSwitchSLVoiceSigninHTTPHandler(Hashtable request)
        {
            m_log.Debug("[FreeSwitchVoice]: FreeSwitchSLVoiceSigninHTTPHandler called");
//            string requestbody = (string)request["body"];
//            string uri = (string)request["uri"];
//            string contenttype = (string)request["content-type"];

            Hashtable requestBody = ParseRequestBody((string)request["body"]);

            //string pwd = (string) requestBody["pwd"];
            string userid = (string) requestBody["userid"];

            string avatarName = string.Empty;
            int pos = -1;
            lock (m_UUIDName)
            {
                if (m_UUIDName.ContainsKey(userid))
                {
                    avatarName = m_UUIDName[userid];
                    foreach (string s in m_UUIDName.Keys)
                    {
                        pos++;
                        if (s == userid)
                            break;
                    }
                }
            }

            //m_log.DebugFormat("[FreeSwitchVoice]: AUTH, URI: {0}, Content-Type:{1}, Body{2}", uri, contenttype,
            //                  requestbody);
            Hashtable response = new Hashtable();
            response["str_response_string"] = string.Format(@"<response xsi:schemaLocation=""/xsd/signin.xsd"">
                    <level0>
                        <status>OK</status>
                        <body>
                        <code>200</code>
                        <cookie_name>lib_session</cookie_name>
                        <cookie>{0}:{1}:9303959503950::</cookie>
                        <auth_token>{0}:{1}:9303959503950::</auth_token>
                        <primary>1</primary>
                        <account_id>{1}</account_id>
                        <displayname>{2}</displayname>
                        <msg>auth successful</msg>
                        </body>
                    </level0>
                </response>", userid, pos, avatarName);

            response["int_response_code"] = 200;            
            
//            m_log.DebugFormat("[FreeSwitchVoice]: Sending FreeSwitchSLVoiceSigninHTTPHandler response");
            
            return response;
        }

        public Hashtable ParseRequestBody(string body)
        {
            Hashtable bodyParams = new Hashtable();
            // split string
            string [] nvps = body.Split(new Char [] {'&'});

            foreach (string s in nvps)
            {
                if (s.Trim() != "")
                {
                    string [] nvp = s.Split(new Char [] {'='});
                    bodyParams.Add(HttpUtility.UrlDecode(nvp[0]), HttpUtility.UrlDecode(nvp[1]));
                }
            }

            return bodyParams;
        }

        private string ChannelUri(Scene scene, LandData land)
        {
            string channelUri = null;

            string landUUID;
            string landName;

            // Create parcel voice channel. If no parcel exists, then the voice channel ID is the same
            // as the directory ID. Otherwise, it reflects the parcel's ID.

            lock (m_ParcelAddress)
            {
                if (m_ParcelAddress.ContainsKey(land.GlobalID.ToString()))
                {
                    m_log.DebugFormat("[FreeSwitchVoice]: parcel id {0}: using sip address {1}",
                                      land.GlobalID, m_ParcelAddress[land.GlobalID.ToString()]);
                    return m_ParcelAddress[land.GlobalID.ToString()];
                }
            }

            if (land.LocalID != 1 && (land.Flags & (uint)ParcelFlags.UseEstateVoiceChan) == 0)
            {
                landName = String.Format("{0}:{1}", scene.RegionInfo.RegionName, land.Name);
                landUUID = land.GlobalID.ToString();
                m_log.DebugFormat("[FreeSwitchVoice]: Region:Parcel \"{0}\": parcel id {1}: using channel name {2}",
                                  landName, land.LocalID, landUUID);
            }
            else
            {
                landName = String.Format("{0}:{1}", scene.RegionInfo.RegionName, scene.RegionInfo.RegionName);
                landUUID = scene.RegionInfo.RegionID.ToString();
                m_log.DebugFormat("[FreeSwitchVoice]: Region:Parcel \"{0}\": parcel id {1}: using channel name {2}",
                                  landName, land.LocalID, landUUID);
            }

            // slvoice handles the sip address differently if it begins with confctl, hiding it from the user in the friends list. however it also disables
            // the personal speech indicators as well unless some siren14-3d codec magic happens. we dont have siren143d so we'll settle for the personal speech indicator.
            channelUri = String.Format("sip:conf-{0}@{1}", "x" + Convert.ToBase64String(Encoding.ASCII.GetBytes(landUUID)), m_freeSwitchRealm);

            lock (m_ParcelAddress)
            {
                if (!m_ParcelAddress.ContainsKey(land.GlobalID.ToString()))
                {
                    m_ParcelAddress.Add(land.GlobalID.ToString(),channelUri);
                }
            }

            return channelUri;
        }

        private static bool CustomCertificateValidation(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors error)
        {
            return true;
        }

        public Hashtable FreeSwitchConfigHTTPHandler(Hashtable request)
        {
            Hashtable response = new Hashtable();
            response["str_response_string"] = string.Empty;
            response["content_type"] = "text/plain";
            response["keepalive"] = false;
            response["int_response_code"] = 500;

            Hashtable requestBody = ParseRequestBody((string)request["body"]);                                   

            string section = (string) requestBody["section"];                       

            if (section == "directory")
            {
                string eventCallingFunction = (string)requestBody["Event-Calling-Function"];
                m_log.DebugFormat(
                    "[FreeSwitchVoice]: Received request for config section directory, event calling function '{0}'", 
                    eventCallingFunction);                            
                
                response = m_FreeswitchService.HandleDirectoryRequest(requestBody);
            }
            else if (section == "dialplan")
            {     
                m_log.DebugFormat("[FreeSwitchVoice]: Received request for config section dialplan");
                
                response = m_FreeswitchService.HandleDialplanRequest(requestBody);
            }
            else
                m_log.WarnFormat("[FreeSwitchVoice]: Unknown section {0} was requested from config.", section);

            return response;
        }
    }

    public class MonoCert : ICertificatePolicy
    {
        #region ICertificatePolicy Members

        public bool CheckValidationResult(ServicePoint srvPoint, X509Certificate certificate, WebRequest request, int certificateProblem)
        {
            return true;
        }

        #endregion
    }
}