/
meshdesktopmultiplex.js
1439 lines (1301 loc) · 80 KB
/
meshdesktopmultiplex.js
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
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/**
* @description MeshCentral remote desktop multiplexor
* @author Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2022
* @license Apache-2.0
* @version v0.0.1
*/
/*jslint node: true */
/*jshint node: true */
/*jshint strict:false */
/*jshint -W097 */
/*jshint esversion: 6 */
"use strict";
/*
--- KVM Commands ---
MNG_KVM_NOP = 0,
MNG_KVM_KEY = 1,
MNG_KVM_MOUSE = 2,
MNG_KVM_MOUSE_CURSOR = 88,
MNG_KVM_MOUSE_MOVE = 89,
MNG_KVM_PICTURE = 3,
MNG_KVM_COPY = 4,
MNG_KVM_COMPRESSION = 5,
MNG_KVM_REFRESH = 6,
MNG_KVM_SCREEN = 7,
MNG_KVM_PAUSE = 8,
MNG_TERMTEXT = 9,
MNG_CTRLALTDEL = 10,
MNG_KVM_GET_DISPLAYS = 11,
MNG_KVM_SET_DISPLAY = 12,
MNG_KVM_FRAME_RATE_TIMER = 13,
MNG_KVM_INIT_TOUCH = 14,
MNG_KVM_TOUCH = 15,
MNG_KVM_CONNECTCOUNT = 16,
MNG_KVM_MESSAGE = 17,
MNG_KVM_KEYSTATE = 18,
MNG_ECHO = 21,
MNG_JUMBO = 27,
MNG_GETDIR = 50,
MNG_FILEMOVE = 51,
MNG_FILEDELETE = 52,
MNG_FILECOPY = 53,
MNG_FILECREATEDIR = 54,
MNG_FILETRANSFER = 55,
MNG_FILEUPLOAD = 56,
MNG_FILESEARCH = 57,
MNG_FILETRANSFER2 = 58,
MNG_KVM_DISCONNECT = 59,
MNG_GETDIR2 = 60, // Same as MNG_GETDIR but with date/time.
MNG_FILEUPLOAD2 = 61, // Used for slot based fast upload.
MNG_FILEDELETEREC = 62, // Same as MNG_FILEDELETE but recursive
MNG_USERCONSENT = 63, // Used to notify management console of user consent state
MNG_DEBUG = 64, // Debug/Logging Message for ILibRemoteLogging
MNG_ERROR = 65,
MNG_ENCAPSULATE_AGENT_COMMAND = 70,
MNG_KVM_DISPLAY_INFO = 82
*/
function CreateDesktopMultiplexor(parent, domain, nodeid, id, func) {
var obj = {};
obj.id = id; // Unique identifier for this session
obj.nodeid = nodeid; // Remote device nodeid for this session
obj.parent = parent; // Parent web server instance
obj.agent = null; // Reference to the connection object that is the agent.
obj.viewers = []; // Array of references to all viewers.
obj.viewersOverflowCount = 0; // Number of viewers currently in overflow state.
obj.width = 0; // Current width of the display in pixels.
obj.height = 0; // Current height of the display in pixels.
obj.swidth = 0; // Current width of the display in tiles.
obj.sheight = 0; // Current height of the display in tiles.
obj.screen = null; // The main screen, (x * y) --> tile index. Indicates this image is covering each tile on the screen.
obj.counter = 1; // The main counter, used as index for the obj.images table when now images come in.
obj.imagesCount = 0; // Total number of images in the obj.images table.
obj.imagesCounters = {}; // Main table of indexes --> tile count, the number of tiles still using this image.
obj.images = {}; // Main table of indexes --> image data object.
obj.lastScreenSizeCmd = null; // Pointer to the last screen size command from the agent.
obj.lastScreenSizeCounter = 0; // Index into the image table of the screen size command, this is generally also the first command.
obj.lastConsoleMessage = null; // Last agent console message.
obj.firstData = null; // Index in the image table of the first image in the table, generally this points to the display resolution command.
obj.lastData = null; // Index in the images table of the last image in the table.
obj.lastDisplayInfoData = null; // Pointer to the last display information command from the agent (Number of displays).
obj.lastDisplayLocationData = null; // Pointer to the last display location and size command from the agent.
obj.lastKeyState = null; // Pointer to the last key state command from the agent.
obj.desktopPaused = true; // Current desktop pause state, it's true if all viewers are paused.
obj.imageType = 1; // Current image type, 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = WebP
obj.imageCompression = 50; // Current image compression, this is the highest value of all viewers.
obj.imageScaling = 1024; // Current image scaling, this is the highest value of all viewers.
obj.imageFrameRate = 50; // Current framerate setting, this is the lowest values of all viewers.
obj.protocolOptions = null; // Set to the protocol options of the first viewer that connected.
obj.viewerConnected = false; // Set to true if one viewer attempted to connect to the agent.
obj.recordingFile = null; // Present if we are recording to file.
obj.recordingFileSize = 0; // Current size of the recording file.
obj.recordingFileWriting = false; // Set to true is we are in the process if writing to the recording file.
obj.startTime = null; // Starting time of the multiplex session.
obj.userIds = []; // List of userid's that have intertracted with this session.
//obj.autoLock = false; // Automatically lock the remote device once disconnected
// Accounting
parent.trafficStats.desktopMultiplex.sessions++;
// Add an agent or viewer
obj.addPeer = function (peer) {
if (obj.viewers == null) { parent.parent.debug('relay', 'DesktopRelay: Error, addingPeer on disposed session'); return; }
if (peer.req == null) return; // This peer is already disposed, don't add it.
if (peer.req.query.browser) {
//console.log('addPeer-viewer', obj.nodeid);
// Setup the viewer
if (obj.viewers.indexOf(peer) >= 0) return true;
obj.viewers.push(peer);
peer.desktopPaused = true;
peer.imageType = 1;
peer.imageCompression = 30;
peer.imageScaling = 1024;
peer.imageFrameRate = 100;
peer.lastImageNumberSent = null;
peer.dataPtr = obj.firstData;
peer.sending = false;
peer.overflow = false;
peer.sendQueue = [];
peer.paused = false;
peer.startTime = Date.now();
// Add the user to the userids list if needed
if ((peer.user != null) && (obj.userIds.indexOf(peer.user._id) == -1)) { obj.userIds.push(peer.user._id); }
// Setup slow relay is requested. This will show down sending any data to this viewer.
if ((peer.req.query.slowrelay != null)) {
var sr = null;
try { sr = parseInt(peer.req.query.slowrelay); } catch (ex) { }
if ((typeof sr == 'number') && (sr > 0) && (sr < 1000)) { peer.slowRelay = sr; }
}
// Update user last access time
if ((peer.user != null) && (peer.guestName == null)) {
const user = parent.users[peer.user._id];
if (user != null) {
const timeNow = Math.floor(Date.now() / 1000);
if (user.access < (timeNow - 300)) { // Only update user access time if longer than 5 minutes
user.access = timeNow;
parent.db.SetUser(user);
// Event the change
var message = { etype: 'user', userid: user._id, username: user.name, account: parent.CloneSafeUser(user), action: 'accountchange', domain: domain.id, nolog: 1 };
if (parent.db.changeStream) { message.noact = 1; } // If DB change stream is active, don't use this event to change the user. Another event will come.
var targets = ['*', 'server-users', user._id];
if (user.groups) { for (var i in user.groups) { targets.push('server-users:' + i); } }
parent.parent.DispatchEvent(targets, obj, message);
}
}
}
// Check session recording
var startRecord = false;
if (typeof domain.sessionrecording == 'object') {
// Check if this user is set to record all sessions
if ((domain.sessionrecording.onlyselectedusers === true) && (peer.user != null) && (peer.user.flags != null) && ((peer.user.flags & 2) != 0)) { startRecord = true; }
else if (domain.sessionrecording.onlyselectedusergroups === true) {
// Check if there is a usergroup that requires recording of the session
var user = null;
if (peer.user != null) { user = parent.users[peer.user._id]; }
if ((user != null) && (user.links != null) && (user.links[obj.meshid] == null) && (user.links[obj.nodeid] == null)) {
// This user does not have a direct link to the device group or device. Find all user groups the would cause the link.
for (var i in user.links) {
var ugrp = parent.userGroups[i];
if ((ugrp != null) && (typeof ugrp.flags == 'number') && ((ugrp.flags & 2) != 0) && (ugrp.links != null) && ((ugrp.links[obj.meshid] != null) || (ugrp.links[obj.nodeid] != null))) { startRecord = true; }
}
}
}
}
startRecording(domain, startRecord, function () {
// Indicated we are connected
obj.sendToViewer(peer, obj.recordingFile ? 'cr' : 'c');
// If the agent sent display information or console message, send it to the viewer
if (obj.lastDisplayInfoData != null) { obj.sendToViewer(peer, obj.lastDisplayInfoData); }
if (obj.lastDisplayLocationData != null) { obj.sendToViewer(peer, obj.lastDisplayLocationData); }
if (obj.lastConsoleMessage != null) { obj.sendToViewer(peer, obj.lastConsoleMessage); }
if (obj.lastKeyState != null) { obj.sendToViewer(peer, obj.lastKeyState); }
// Log joining the multiplex session
if (obj.startTime != null) {
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: peer.user ? peer.user._id : null, username: peer.user.name, msgid: 143, msgArgs: [obj.id], msg: "Joined desktop multiplex session \"" + obj.id + "\"", protocol: 2 };
parent.parent.DispatchEvent(['*', obj.nodeid, peer.user._id, obj.meshid], obj, event);
}
// Send an updated list of all peers to all viewers
obj.sendSessionMetadata();
});
} else {
//console.log('addPeer-agent', obj.nodeid);
if (obj.agent != null) { parent.parent.debug('relay', 'DesktopRelay: Error, duplicate agent connection'); return false; }
// Setup the agent
obj.agent = peer;
peer.sending = false;
peer.overflow = false;
peer.sendQueue = [];
peer.paused = false;
// Indicated we are connected and send connection options and protocol if needed
obj.sendToAgent(obj.recordingFile?'cr':'c');
if (obj.viewerConnected == true) {
if (obj.protocolOptions != null) { obj.sendToAgent(JSON.stringify(obj.protocolOptions)); } // Send connection options
obj.sendToAgent('2'); // Send remote desktop connect
}
}
// Log multiplex session start
if ((obj.agent != null) && (obj.viewers.length > 0) && (obj.startTime == null)) {
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, msgid: 145, msgArgs: [obj.id], msg: "Started desktop multiplex session \"" + obj.id + "\"", protocol: 2 };
if (obj.viewers[0].user != null) { event.userid = obj.viewers[0].user._id; event.username = obj.viewers[0].user.name; }
const targets = ['*', obj.nodeid, obj.meshid];
if (obj.viewers[0].user != null) { targets.push(obj.viewers[0].user._id); }
parent.parent.DispatchEvent(targets, obj, event);
obj.startTime = Date.now();
}
return true;
}
// Remove an agent or viewer
// Return true if this multiplexor is no longer needed.
obj.removePeer = function (peer) {
if (obj.viewers == null) return;
if (peer == obj.agent) {
//console.log('removePeer-agent', obj.nodeid);
// Agent has disconnected, disconnect everyone.
if (obj.viewers != null) { for (var i in obj.viewers) { obj.viewers[i].close(); } }
// Clean up the agent
obj.agent = null;
dispose();
return true;
} else {
//console.log('removePeer-viewer', obj.nodeid);
// Remove a viewer
if (obj.viewers != null) {
var i = obj.viewers.indexOf(peer);
if (i == -1) return false;
obj.viewers.splice(i, 1);
}
// Resume flow control if this was the peer that was limiting traffic (because it was the fastest one).
if (peer.overflow == true) {
obj.viewersOverflowCount--;
peer.overflow = false;
if ((obj.viewersOverflowCount < obj.viewers.length) && (obj.recordingFileWriting == false) && obj.agent && (obj.agent.paused == true)) { obj.agent.paused = false; obj.agent.ws._socket.resume(); }
}
// Log leaving the multiplex session
if (obj.startTime != null) { // Used to check if the agent has connected. If not, don't log this event since the session never really started.
// In this code, we want to compute the share of in/out traffic that belongs to this viewer. It includes all of the viewers in/out traffic + all or a portion of the agents in/out traffic.
// The agent traffic needs to get divided out between the viewers fairly. For the time that multiple viewers are present, the agent traffic is divided between the viewers.
// Compute traffic to and from the browser
var inTraffc, outTraffc;
try { inTraffc = peer.ws._socket.bytesRead; } catch (ex) { }
try { outTraffc = peer.ws._socket.bytesWritten; } catch (ex) { }
// Add any previous agent traffic accounting
if (peer.agentInTraffic) { inTraffc += peer.agentInTraffic; }
if (peer.outTraffc) { inTraffc += peer.agentOutTraffic; }
// Compute traffic to and from the agent
if (obj.agent != null) {
// Get unaccounted bytes from/to the agent
var agentInTraffc, agentOutTraffc, agentInTraffc2, agentOutTraffc2;
try { agentInTraffc = agentInTraffc2 = obj.agent.ws._socket.bytesRead; } catch (ex) { }
try { agentOutTraffc = agentOutTraffc2 = obj.agent.ws._socket.bytesWritten; } catch (ex) { }
if (obj.agent.accountedBytesRead) { agentInTraffc -= obj.agent.accountedBytesRead; }
if (obj.agent.accountedBytesWritten) { agentOutTraffc -= obj.agent.accountedBytesWritten; }
obj.agent.accountedBytesRead = agentInTraffc2;
obj.agent.accountedBytesWritten = agentOutTraffc2;
// Devide up the agent traffic amoung the viewers
var viewerPartIn = Math.floor(agentInTraffc / (obj.viewers.length + 1));
var viewerPartOut = Math.floor(agentOutTraffc / (obj.viewers.length + 1));
// Add the portion to this viewer and all other viewer
inTraffc += viewerPartIn;
outTraffc += viewerPartOut;
for (var i in obj.viewers) {
if (obj.viewers[i].agentInTraffic) { obj.viewers[i].agentInTraffic += viewerPartIn; } else { obj.viewers[i].agentInTraffic = viewerPartIn; }
if (obj.viewers[i].agentOutTraffic) { obj.viewers[i].agentOutTraffic += viewerPartOut; } else { obj.viewers[i].agentOutTraffic = viewerPartOut; }
}
}
//var event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, userid: peer.user._id, username: peer.user.name, msgid: 5, msg: "Left the desktop multiplex session", protocol: 2 };
const sessionSeconds = Math.floor((Date.now() - peer.startTime) / 1000);
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, msgid: 144, msgArgs: [obj.id, sessionSeconds], msg: "Left the desktop multiplex session \"" + obj.id + "\" after " + sessionSeconds + " second(s).", protocol: 2, bytesin: inTraffc, bytesout: outTraffc };
if (peer.user != null) { event.userid = peer.user._id; event.username = peer.user.name; }
if (peer.guestName) { event.guestname = peer.guestName; }
const targets = ['*', obj.nodeid, obj.meshid];
if (peer.user != null) { targets.push(peer.user._id); }
parent.parent.DispatchEvent(targets, obj, event);
}
// Aggressive clean up of the viewer
delete peer.desktopPaused;
delete peer.imageType;
delete peer.imageCompression;
delete peer.imageScaling;
delete peer.imageFrameRate;
delete peer.lastImageNumberSent;
delete peer.dataPtr;
delete peer.sending;
delete peer.overflow;
delete peer.sendQueue;
delete peer.startTime;
// If this is the last viewer, disconnect the agent
if ((obj.viewers != null) && (obj.viewers.length == 0) && (obj.agent != null)) { obj.agent.close(); dispose(); return true; }
// Send an updated list of all peers to all viewers
obj.sendSessionMetadata();
}
return false;
}
// Clean up ourselves
function dispose() {
if (obj.viewers == null) return;
//console.log('dispose', obj.nodeid);
delete obj.viewers;
delete obj.imagesCounters;
delete obj.images;
// Close the recording file if needed
if (obj.recordingFile != null) {
// Compute session length
if (obj.startTime != null) { obj.sessionStart = obj.startTime; obj.sessionLength = Math.round((Date.now() - obj.startTime) / 1000); }
// Write the last record of the recording file
var rf = obj.recordingFile;
delete obj.recordingFile;
recordingEntry(rf.fd, 3, 0, 'MeshCentralMCREC', function (fd, filename) {
parent.parent.fs.close(fd);
// Now that the recording file is closed, check if we need to index this file.
if (domain.sessionrecording.index && domain.sessionrecording.index !== false) { parent.parent.certificateOperations.acceleratorPerformOperation('indexMcRec', filename); }
// Add a event entry about this recording
var basefile = parent.parent.path.basename(filename);
var event = { etype: 'relay', action: 'recording', domain: domain.id, nodeid: obj.nodeid, msgid: 146, msgArgs: [obj.id, obj.sessionLength], msg: "Finished recording session \"" + obj.id + "\", " + obj.sessionLength + " second(s)", filename: basefile, size: obj.recordingFileSize, protocol: 2, icon: obj.icon, name: obj.name, meshid: obj.meshid, userids: obj.userIds, multiplex: true };
var mesh = parent.meshes[obj.meshid];
if (mesh != null) { event.meshname = mesh.name; }
if (obj.sessionStart) { event.startTime = obj.sessionStart; event.lengthTime = obj.sessionLength; }
parent.parent.DispatchEvent(['*', 'recording', obj.nodeid, obj.meshid], obj, event);
cleanUpRecordings();
}, rf.filename);
}
// Log end of multiplex session
if (obj.startTime != null) {
var event = { etype: 'relay', action: 'relaylog', domain: domain.id, nodeid: obj.nodeid, msgid: 147, msgArgs: [obj.id, Math.floor((Date.now() - obj.startTime) / 1000)], msg: "Closed desktop multiplex session \"" + obj.id + "\", " + Math.floor((Date.now() - obj.startTime) / 1000) + ' second(s)', protocol: 2 };
parent.parent.DispatchEvent(['*', obj.nodeid, obj.meshid], obj, event);
obj.startTime = null;
}
// Send an updated list of all peers to all viewers
obj.sendSessionMetadata();
parent.parent.debug('relay', 'DesktopRelay: Disposing desktop multiplexor');
}
// Send data to the agent or queue it up for sending
obj.sendToAgent = function (data) {
if ((obj.viewers == null) || (obj.agent == null)) return;
//console.log('SendToAgent', data.length);
if (obj.agent.sending) {
obj.agent.sendQueue.push(data);
// Flow control, pause all viewers is the queue is backing up
if (obj.agent.sendQueue > 10) {
obj.agent.overflow = true;
for (var i in obj.viewers) {
var v = obj.viewers[i];
if (v.paused == false) { v.paused = true; v.ws._socket.pause(); }
}
}
} else {
obj.agent.ws.send(data, sendAgentNext);
}
}
// Send more data to the agent
function sendAgentNext() {
if ((obj.viewers == null) || (obj.agent == null)) return;
if (obj.agent.sendQueue.length > 0) {
// Send from the pending send queue
obj.agent.ws.send(obj.agent.sendQueue.shift(), sendAgentNext);
} else {
// Nothing to send
obj.agent.sending = false;
// Flow control, resume all viewers
if (obj.agent.overflow == true) {
obj.agent.overflow = false;
for (var i in obj.viewers) {
var v = obj.viewers[i];
if (v.paused == true) { v.paused = false; v.ws._socket.resume(); }
}
}
}
}
// Send the list of all users currently vieweing this session to all viewers and servers
obj.sendSessionMetadata = function () {
var allUsers = {};
if (obj.viewers != null) {
for (var i in obj.viewers) {
var v = obj.viewers[i];
if ((v.user != null) && (v.user._id != null)) {
var id = v.user._id;
if (v.guestName) { id += '/guest:' + Buffer.from(v.guestName).toString('base64'); } // If this is a guest connect, add the Base64 guest name.
if (allUsers[id] == null) { allUsers[id] = 1; } else { allUsers[id]++; }
}
}
obj.sendToAllViewers(JSON.stringify({ type: 'metadata', 'ctrlChannel': '102938', users: allUsers, startTime: obj.startTime }));
}
// Update the sessions attached the to agent
if (obj.nodeid != null) {
const xagent = parent.wsagents[obj.nodeid];
if (xagent != null) {
if (xagent.sessions == null) { xagent.sessions = {}; }
xagent.sessions.multidesk = allUsers;
xagent.updateSessions();
}
}
}
// Send this command to all viewers
obj.sendToAllViewers = function (data) {
if (obj.viewers == null) return;
for (var i in obj.viewers) { obj.sendToViewer(obj.viewers[i], data); }
}
// Send this command to all viewers
obj.sendToAllInputViewers = function (data) {
if (obj.viewers == null) return;
for (var i in obj.viewers) { if (obj.viewers[i].viewOnly != true) { obj.sendToViewer(obj.viewers[i], data); } }
}
// Send data to the viewer or queue it up for sending
obj.sendToViewer = function (viewer, data) {
if ((viewer == null) || (obj.viewers == null)) return;
//console.log('SendToViewer', data.length);
if (viewer.sending) {
viewer.sendQueue.push(data);
} else {
viewer.sending = true;
if (viewer.slowRelay) {
setTimeout(function () { try { viewer.ws.send(data, function () { sendViewerNext(viewer); }); } catch (ex) { } }, viewer.slowRelay);
} else {
try { viewer.ws.send(data, function () { sendViewerNext(viewer); }); } catch (ex) { }
}
// Flow control, pause the agent if needed
checkViewerOverflow(viewer);
}
}
// Check if a viewer is in overflow situation
function checkViewerOverflow(viewer) {
if ((viewer.overflow == true) || (obj.viewers == null)) return;
if ((viewer.sendQueue.length > 5) || ((viewer.dataPtr != null) && (viewer.dataPtr != obj.lastData))) {
viewer.overflow = true;
obj.viewersOverflowCount++;
if ((obj.viewersOverflowCount >= obj.viewers.length) && obj.agent && (obj.agent.paused == false)) { obj.agent.paused = true; obj.agent.ws._socket.pause(); }
}
}
// Check if a viewer is in underflow situation
function checkViewerUnderflow(viewer) {
if ((viewer.overflow == false) || (obj.viewers == null)) return;
if ((viewer.sendQueue.length <= 5) && ((viewer.dataPtr == null) || (viewer.dataPtr == obj.lastData))) {
viewer.overflow = false;
obj.viewersOverflowCount--;
if ((obj.viewersOverflowCount < obj.viewers.length) && (obj.recordingFileWriting == false) && obj.agent && (obj.agent.paused == true)) { obj.agent.paused = false; obj.agent.ws._socket.resume(); }
}
}
// Send more data to the viewer
function sendViewerNext(viewer) {
if ((viewer.sendQueue == null) || (obj.viewers == null)) return;
if (viewer.sendQueue.length > 0) {
// Send from the pending send queue
if (viewer.sending == false) { viewer.sending = true; }
if (viewer.slowRelay) {
setTimeout(function () { try { viewer.ws.send(viewer.sendQueue.shift(), function () { sendViewerNext(viewer); }); } catch (ex) { } }, viewer.slowRelay);
} else {
try { viewer.ws.send(viewer.sendQueue.shift(), function () { sendViewerNext(viewer); }); } catch (ex) { }
}
checkViewerOverflow(viewer);
} else {
if (viewer.dataPtr != null) {
// Send the next image
//if ((viewer.lastImageNumberSent != null) && ((viewer.lastImageNumberSent + 1) != (viewer.dataPtr))) { console.log('SVIEW-S1', viewer.lastImageNumberSent, viewer.dataPtr); } // DEBUG
var image = obj.images[viewer.dataPtr];
viewer.lastImageNumberSent = viewer.dataPtr;
//if ((image.next != null) && ((viewer.dataPtr + 1) != image.next)) { console.log('SVIEW-S2', viewer.dataPtr, image.next); } // DEBUG
viewer.dataPtr = image.next;
if (viewer.slowRelay) {
setTimeout(function () { try { viewer.ws.send(image.data, function () { sendViewerNext(viewer); }); } catch (ex) { } }, viewer.slowRelay);
} else {
try { viewer.ws.send(image.data, function () { sendViewerNext(viewer); }); } catch (ex) { }
}
// Flow control, pause the agent if needed
if (viewer.sending == false) { viewer.sending = true; }
checkViewerOverflow(viewer);
} else {
// Nothing to send
viewer.sending = false;
// Flow control, resume agent if needed
checkViewerUnderflow(viewer);
}
}
}
// Process data coming from the agent or any viewers
obj.processData = function (peer, data) {
if (obj.viewers == null) return;
if (peer == obj.agent) {
obj.recordingFileWriting = true;
recordData(true, data, function () {
if (obj.viewers == null) return;
obj.recordingFileWriting = false;
if ((obj.viewersOverflowCount < obj.viewers.length) && obj.agent && (obj.agent.paused == true)) { obj.agent.paused = false; obj.agent.ws._socket.resume(); }
obj.processAgentData(data);
});
} else {
obj.processViewerData(peer, data);
}
}
// Process incoming viewer data
obj.processViewerData = function (viewer, data) {
if (typeof data == 'string') {
if (data == '2') {
if (obj.viewerConnected == false) {
if (obj.agent != null) {
if (obj.protocolOptions != null) { obj.sendToAgent(JSON.stringify(obj.protocolOptions)); } // Send connection options
obj.sendToAgent('2'); // Send remote desktop connect
}
obj.viewerConnected = true;
}
return;
}
var json = null;
try { json = JSON.parse(data); } catch (ex) { }
if (json == null) return;
if ((json.type == 'options') && (obj.protocolOptions == null)) { obj.protocolOptions = json; }
if (json.ctrlChannel == '102938') {
if ((json.type == 'lock') && (viewer.viewOnly == false)) { obj.sendToAgent('{"ctrlChannel":"102938","type":"lock"}'); } // Account lock support
if ((json.type == 'autolock') && (viewer.viewOnly == false) && (typeof json.value == 'boolean')) { obj.sendToAgent('{"ctrlChannel":"102938","type":"autolock","value":' + json.value + '}'); } // Lock on disconnect
}
return;
}
//console.log('ViewerData', data.length, typeof data, data);
if ((typeof data != 'object') || (data.length < 4)) return; // Ignore all control traffic for now (WebRTC)
var command = data.readUInt16BE(0);
var cmdsize = data.readUInt16BE(2);
if (data.length != cmdsize) return; // Invalid command length
//console.log('ViewerData', data.length, command, cmdsize);
switch (command) {
case 1: // Key Events, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
case 2: // Mouse events, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
case 5: // Compression
if (data.length < 10) return;
viewer.imageType = data[4]; // Image type: 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = WebP
viewer.imageCompression = data[5];
viewer.imageScaling = data.readUInt16BE(6);
viewer.imageFrameRate = data.readUInt16BE(8);
//console.log('Viewer-Compression', viewer.imageType, viewer.imageCompression, viewer.imageScaling, viewer.imageFrameRate);
// See if this changes anything
var viewersimageType = null;
var viewersimageCompression = null;
var viewersimageScaling = null;
var viewersimageFrameRate = null;
for (var i in obj.viewers) {
if (viewersimageType == null) { viewersimageType = obj.viewers[i].imageType; } else if (obj.viewers[i].imageType != viewersimageType) { viewersimageType = 1; }; // Default to JPEG if viewers has different image formats
if ((viewersimageCompression == null) || (obj.viewers[i].imageCompression > viewersimageCompression)) { viewersimageCompression = obj.viewers[i].imageCompression; };
if ((viewersimageScaling == null) || (obj.viewers[i].imageScaling > viewersimageScaling)) { viewersimageScaling = obj.viewers[i].imageScaling; };
if ((viewersimageFrameRate == null) || (obj.viewers[i].imageFrameRate < viewersimageFrameRate)) { viewersimageFrameRate = obj.viewers[i].imageFrameRate; };
}
if ((obj.imageCompression != viewersimageCompression) || (obj.imageScaling != viewersimageScaling) || (obj.imageFrameRate != viewersimageFrameRate)) {
// Update and send to agent new compression settings
obj.imageType = viewersimageType;
obj.imageCompression = viewersimageCompression;
obj.imageScaling = viewersimageScaling;
obj.imageFrameRate = viewersimageFrameRate
//console.log('Send-Agent-Compression', obj.imageType, obj.imageCompression, obj.imageScaling, obj.imageFrameRate);
var cmd = Buffer.alloc(10);
cmd.writeUInt16BE(5, 0); // Command 5, compression
cmd.writeUInt16BE(10, 2); // Command size, 10 bytes long
cmd[4] = obj.imageType; // Image type: 1 = JPEG, 2 = PNG, 3 = TIFF, 4 = WebP
cmd[5] = obj.imageCompression; // Image compression level
cmd.writeUInt16BE(obj.imageScaling, 6); // Scaling level
cmd.writeUInt16BE(obj.imageFrameRate, 8); // Frame rate timer
obj.sendToAgent(cmd);
}
break;
case 6: // Refresh, handle this on the server
//console.log('Viewer-Refresh');
viewer.dataPtr = obj.firstData; // Start over
if (viewer.sending == false) { sendViewerNext(viewer); }
break;
case 8: // Pause and unpause
if (data.length != 5) break;
var pause = data[4]; // 0 = Unpause, 1 = Pause
if (viewer.desktopPaused == (pause == 1)) break;
viewer.desktopPaused = (pause == 1);
//console.log('Viewer-' + ((pause == 1)?'Pause':'UnPause'));
var viewersPaused = true;
for (var i in obj.viewers) { if (obj.viewers[i].desktopPaused == false) { viewersPaused = false; }; }
if (viewersPaused != obj.desktopPaused) {
obj.desktopPaused = viewersPaused;
//console.log('Send-Agent-' + ((viewersPaused == true) ? 'Pause' : 'UnPause'));
data[4] = (viewersPaused == true) ? 1 : 0;
obj.sendToAgent(data);
}
break;
case 10: // CTRL-ALT-DEL, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
case 12: // SET DISPLAY, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
case 14: // Touch setup
break;
case 82: // Request display information
if (obj.lastDisplayLocationData != null) { obj.sendToAgent(obj.lastDisplayLocationData); }
break;
case 85: // Unicode Key Events, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
case 87: // Remote input lock, forward to agent
if (viewer.viewOnly == false) { obj.sendToAgent(data); }
break;
default:
console.log('Un-handled viewer command: ' + command);
break;
}
}
// Process incoming agent data
obj.processAgentData = function (data) {
if ((typeof data != 'object') || (data.length < 4)) {
if (typeof data == 'string') {
var json = null;
try { json = JSON.parse(data); } catch (ex) { }
if (json == null) return;
if (json.type == 'console') {
// This is a console message, store it and forward this to all viewers
if (json.msg != null) { obj.lastConsoleMessage = data; } else { obj.lastConsoleMessage = null; }
obj.sendToAllViewers(data);
}
// All other control messages (notably WebRTC), are ignored for now.
}
return; // Ignore all other traffic
}
const jumboData = data;
var command = data.readUInt16BE(0);
var cmdsize = data.readUInt16BE(2);
//console.log('AgentData', data.length, command, cmdsize);
if ((command == 27) && (cmdsize == 8)) {
// Jumbo packet
if (data.length >= 12) {
command = data.readUInt16BE(8);
cmdsize = data.readUInt32BE(4);
if (data.length == (cmdsize + 8)) {
data = data.slice(8, data.length);
} else {
console.log('TODO-PARTIAL-JUMBO', command, cmdsize, data.length);
return; // TODO
}
}
}
switch (command) {
case 3: // Tile, check dimentions and store
if ((data.length < 10) || (obj.lastData == null)) break;
var x = data.readUInt16BE(4), y = data.readUInt16BE(6);
var dimensions = require('image-size')(data.slice(8));
var sx = (x / 16), sy = (y / 16), sw = (dimensions.width / 16), sh = (dimensions.height / 16);
obj.counter++;
// Keep a reference to this image & how many tiles it covers
obj.images[obj.counter] = { next: null, prev: obj.lastData, data: jumboData };
obj.images[obj.lastData].next = obj.counter;
obj.lastData = obj.counter;
obj.imagesCounters[obj.counter] = (sw * sh);
obj.imagesCount++;
if (obj.imagesCount == 2000000000) { obj.imagesCount = 1; } // Loop the counter if needed
//console.log('Adding Image ' + obj.counter, x, y, dimensions.width, dimensions.height);
// Update the screen with the correct pointers.
for (var i = 0; i < sw; i++) {
for (var j = 0; j < sh; j++) {
var k = ((obj.swidth * (j + sy)) + (i + sx));
const oi = obj.screen[k];
obj.screen[k] = obj.counter;
if ((oi != null) && (--obj.imagesCounters[oi] == 0)) {
// Remove data from the link list
obj.imagesCount--;
var d = obj.images[oi];
//console.log('Removing Image', oi, obj.images[oi].prev, obj.images[oi].next);
obj.images[d.prev].next = d.next;
obj.images[d.next].prev = d.prev;
delete obj.images[oi];
delete obj.imagesCounters[oi];
// If any viewers are currently on image "oi" must be moved to "d.next"
for (var l in obj.viewers) { const v = obj.viewers[l]; if (v.dataPtr == oi) { v.dataPtr = d.next; } }
}
}
}
// Any viewer on dataPtr null, change to this image
for (var i in obj.viewers) {
const v = obj.viewers[i];
if (v.dataPtr == null) { v.dataPtr = obj.counter; if (v.sending == false) { sendViewerNext(v); } }
}
// Debug, display the link list
//var xx = '', xptr = obj.firstData;
//while (xptr != null) { xx += '>' + xptr; xptr = obj.images[xptr].next; }
//console.log('list', xx);
//console.log('images', obj.imagesCount);
break;
case 4: // Tile Copy, do nothing.
break;
case 7: // Screen Size, clear the screen state and compute the tile count
if (data.length < 8) break;
if ((obj.width === data.readUInt16BE(4)) && (obj.height === data.readUInt16BE(6))) break; // Same screen size as before, skip this.
obj.counter++;
obj.lastScreenSizeCmd = data;
obj.lastScreenSizeCounter = obj.counter;
obj.width = data.readUInt16BE(4);
obj.height = data.readUInt16BE(6);
obj.swidth = obj.width / 16;
obj.sheight = obj.height / 16;
if (Math.floor(obj.swidth) != obj.swidth) { obj.swidth = Math.floor(obj.swidth) + 1; }
if (Math.floor(obj.sheight) != obj.sheight) { obj.sheight = Math.floor(obj.sheight) + 1; }
// Reset the display
obj.screen = new Array(obj.swidth * obj.sheight);
obj.imagesCount = 0;
obj.imagesCounters = {};
obj.images = {};
obj.images[obj.counter] = { next: null, prev: null, data: data };
obj.firstData = obj.counter;
obj.lastData = obj.counter;
// Add viewers must be set to start at "obj.counter"
for (var i in obj.viewers) {
const v = obj.viewers[i];
v.dataPtr = obj.counter;
if (v.sending == false) { sendViewerNext(v); }
}
//console.log("ScreenSize", obj.width, obj.height, obj.swidth, obj.sheight, obj.swidth * obj.sheight);
break;
case 11: // GetDisplays
// Store and send this to all viewers right away
obj.lastDisplayInfoData = data;
obj.sendToAllInputViewers(data);
break;
case 12: // SetDisplay
obj.sendToAllInputViewers(data);
break;
case 14: // KVM_INIT_TOUCH
break;
case 15: // KVM_TOUCH
break;
case 17: // MNG_KVM_MESSAGE
// Send this to all viewers right away
obj.sendToAllViewers(data);
break;
case 18: // MNG_KVM_KEYSTATE
// Store and send this to all viewers right away
obj.lastKeyState = data;
obj.sendToAllInputViewers(data);
break;
case 65: // Alert
// Send this to all viewers right away
obj.sendToAllViewers(data);
break;
case 82:
// Display information
if ((data.length < 14) || (((data.length - 4) % 10) != 0)) break; // Command must be 14 bytes and have header + 10 byte for each display.
obj.lastDisplayLocationData = data;
obj.sendToAllInputViewers(data);
break;
case 87: // MNG_KVM_INPUT_LOCK
// Send this to all viewers right away
// This will update all views on the current state of the input lock
obj.sendToAllInputViewers(data);
break;
case 88: // MNG_KVM_MOUSE_CURSOR
// Send this to all viewers right away
obj.sendToAllInputViewers(data);
break;
default:
console.log('Un-handled agent command: ' + command + ', length: ' + cmdsize);
break;
}
}
function startRecording(domain, start, func) {
if ((obj.pendingRecording == 1) || (obj.recordingFile != null)) { func(true); return; } // Check if already recording
if (start == false) { func(false); return; } // Just skip this
obj.pendingRecording = 1;
var now = new Date(Date.now());
var recFilename = 'desktopSession' + ((domain.id == '') ? '' : '-') + domain.id + '-' + now.getUTCFullYear() + '-' + parent.common.zeroPad(now.getUTCMonth() + 1, 2) + '-' + parent.common.zeroPad(now.getUTCDate(), 2) + '-' + parent.common.zeroPad(now.getUTCHours(), 2) + '-' + parent.common.zeroPad(now.getUTCMinutes(), 2) + '-' + parent.common.zeroPad(now.getUTCSeconds(), 2) + '-' + obj.nodeid.split('/')[2] + '.mcrec'
var recFullFilename = null;
if (domain.sessionrecording.filepath) {
try { parent.parent.fs.mkdirSync(domain.sessionrecording.filepath); } catch (e) { }
recFullFilename = parent.parent.path.join(domain.sessionrecording.filepath, recFilename);
} else {
try { parent.parent.fs.mkdirSync(parent.parent.recordpath); } catch (e) { }
recFullFilename = parent.parent.path.join(parent.parent.recordpath, recFilename);
}
parent.parent.fs.open(recFullFilename, 'w', function (err, fd) {
delete obj.pendingRecording;
if (err != null) {
parent.parent.debug('relay', 'Relay: Unable to record to file: ' + recFullFilename);
func(false);
return;
}
// Write the recording file header
parent.parent.debug('relay', 'Relay: Started recoding to file: ' + recFullFilename);
var metadata = { magic: 'MeshCentralRelaySession', ver: 1, nodeid: obj.nodeid, meshid: obj.meshid, time: new Date().toLocaleString(), protocol: 2, devicename: obj.name, devicegroup: obj.meshname };
var firstBlock = JSON.stringify(metadata);
recordingEntry(fd, 1, 0, firstBlock, function () {
obj.recordingFile = { fd: fd, filename: recFullFilename };
obj.recordingFileWriting = false;
func(true);
});
});
}
// Here, we check if we have to record the device, regardless of what user is looking at it.
function recordingSetup(domain, func) {
var record = false;
// Setup session recording
if (((domain.sessionrecording == true) || ((typeof domain.sessionrecording == 'object') && ((domain.sessionrecording.protocols == null) || (domain.sessionrecording.protocols.indexOf(2) >= 0))))) {
record = true;
// Check again to make sure we need to start recording
if ((typeof domain.sessionrecording == 'object') && ((domain.sessionrecording.onlyselecteddevicegroups === true) || (domain.sessionrecording.onlyselectedusergroups === true) || (domain.sessionrecording.onlyselectedusers === true))) {
record = false;
// Check device group recording
if (domain.sessionrecording.onlyselecteddevicegroups === true) {
var mesh = parent.meshes[obj.meshid];
if ((mesh.flags != null) && ((mesh.flags & 4) != 0)) { record = true; }
}
}
}
startRecording(domain, record, func);
}
// Record data to the recording file
function recordData(isAgent, data, func) {
try {
if (obj.recordingFile != null) {
// Write data to recording file
recordingEntry(obj.recordingFile.fd, 2, (isAgent ? 0 : 2), data, function () { func(data); });
} else {
func(data);
}
} catch (ex) { console.log(ex); }
}
// Record a new entry in a recording log
function recordingEntry(fd, type, flags, data, func, tag) {
try {
if (typeof data == 'string') {
// String write
var blockData = Buffer.from(data), header = Buffer.alloc(16); // Header: Type (2) + Flags (2) + Size(4) + Time(8)
header.writeInt16BE(type, 0); // Type (1 = Header, 2 = Network Data)
header.writeInt16BE(flags, 2); // Flags (1 = Binary, 2 = User)
header.writeInt32BE(blockData.length, 4); // Size
header.writeIntBE(new Date(), 10, 6); // Time
var block = Buffer.concat([header, blockData]);
parent.parent.fs.write(fd, block, 0, block.length, function () { func(fd, tag); });
obj.recordingFileSize += block.length;
} else {
// Binary write
var header = Buffer.alloc(16); // Header: Type (2) + Flags (2) + Size(4) + Time(8)
header.writeInt16BE(type, 0); // Type (1 = Header, 2 = Network Data)
header.writeInt16BE(flags | 1, 2); // Flags (1 = Binary, 2 = User)
header.writeInt32BE(data.length, 4); // Size
header.writeIntBE(new Date(), 10, 6); // Time
var block = Buffer.concat([header, data]);
parent.parent.fs.write(fd, block, 0, block.length, function () { func(fd, tag); });
obj.recordingFileSize += block.length;
}
} catch (ex) { console.log(ex); func(fd, tag); }
}
// If there is a recording quota, remove any old recordings if needed
function cleanUpRecordings() {
if ((parent.cleanUpRecordingsActive !== true) && domain.sessionrecording && ((typeof domain.sessionrecording.maxrecordings == 'number') || (typeof domain.sessionrecording.maxrecordingsizemegabytes == 'number') || (typeof domain.sessionrecording.maxrecordingdays == 'number'))) {
parent.cleanUpRecordingsActive = true;
setTimeout(function () {
var recPath = null, fs = require('fs'), now = Date.now();
if (domain.sessionrecording.filepath) { recPath = domain.sessionrecording.filepath; } else { recPath = parent.parent.recordpath; }
fs.readdir(recPath, function (err, files) {
if ((err != null) || (files == null)) { delete parent.cleanUpRecordingsActive; return; }
var recfiles = [];
for (var i in files) {
if (files[i].endsWith('.mcrec')) {
var j = files[i].indexOf('-');
if (j > 0) {
var stats = null;
try { stats = fs.statSync(parent.parent.path.join(recPath, files[i])); } catch (ex) { }
if (stats != null) { recfiles.push({ n: files[i], r: files[i].substring(j + 1), s: stats.size, t: stats.mtimeMs }); }
}
}
}
recfiles.sort(function (a, b) { if (a.r < b.r) return 1; if (a.r > b.r) return -1; return 0; });
var totalFiles = 0, totalSize = 0;
for (var i in recfiles) {
var overQuota = false;
if ((typeof domain.sessionrecording.maxrecordings == 'number') && (domain.sessionrecording.maxrecordings > 0) && (totalFiles >= domain.sessionrecording.maxrecordings)) { overQuota = true; }
else if ((typeof domain.sessionrecording.maxrecordingsizemegabytes == 'number') && (domain.sessionrecording.maxrecordingsizemegabytes > 0) && (totalSize >= (domain.sessionrecording.maxrecordingsizemegabytes * 1048576))) { overQuota = true; }
else if ((typeof domain.sessionrecording.maxrecordingdays == 'number') && (domain.sessionrecording.maxrecordingdays > 0) && (((now - recfiles[i].t) / 1000 / 60 / 60 / 24) >= domain.sessionrecording.maxrecordingdays)) { overQuota = true; }
if (overQuota) { fs.unlinkSync(parent.parent.path.join(recPath, recfiles[i].n)); }
totalFiles++;
totalSize += recfiles[i].s;
}
delete parent.cleanUpRecordingsActive;
});
}, 500);
}
}
// Get node information
parent.db.Get(nodeid, function (err, nodes) {
if ((err != null) || (nodes.length != 1)) { func(null); return; }
obj.meshid = nodes[0].meshid;
obj.icon = nodes[0].icon;
obj.name = nodes[0].name;
recordingSetup(domain, function () { func(obj); });
});
return obj;
}
function checkDeviceSharePublicIdentifier(parent, domain, nodeid, pid, extraKey, func) {
// Check the public id
parent.db.GetAllTypeNodeFiltered([nodeid], domain.id, 'deviceshare', null, function (err, docs) {
if ((err != null) || (docs.length == 0)) { func(false); return; }
// Search for the device share public identifier
var found = false;
for (var i = 0; i < docs.length; i++) { if ((docs[i].publicid == pid) && ((docs[i].extrakey == null) || (docs[i].extrakey === extraKey))) { found = true; } }
func(found);
});
}
module.exports.CreateMeshRelay = function (parent, ws, req, domain, user, cookie) {
if ((cookie != null) && (typeof cookie.nid == 'string') && (typeof cookie.pid == 'string')) {
checkDeviceSharePublicIdentifier(parent, domain, cookie.nid, cookie.pid, cookie.k, function (result) {
// If the identifier if not found, close the connection
if (result == false) { try { ws.close(); } catch (e) { } return; }
// Public device sharing identifier found, continue as normal.
CreateMeshRelayEx(parent, ws, req, domain, user, cookie);
});
} else {
CreateMeshRelayEx(parent, ws, req, domain, user, cookie);
}
}
// If we are in multi-server mode, the desktop multiplexor needs to be created on the server with the agent connected to it.
// So, if the agent is connected to a different server, just relay the connection to that server
function CreateMeshRelayEx(parent, ws, req, domain, user, cookie) {
// Do validation work
if (cookie) {
if ((typeof cookie.expire == 'number') && (cookie.expire <= Date.now())) { delete req.query.nodeid; }