forked from qbittorrent/qBittorrent
-
Notifications
You must be signed in to change notification settings - Fork 0
/
bittorrent.cpp
1137 lines (1062 loc) · 38.5 KB
/
bittorrent.cpp
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
/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : [email protected]
*/
#include <QDir>
#include <QTime>
#include <QString>
#include <libtorrent/extensions/metadata_transfer.hpp>
#include <libtorrent/extensions/ut_pex.hpp>
#include <libtorrent/entry.hpp>
#include <libtorrent/bencode.hpp>
#include <libtorrent/identify_client.hpp>
#include <libtorrent/alert_types.hpp>
#include <libtorrent/ip_filter.hpp>
#include "bittorrent.h"
#include "misc.h"
#include "downloadThread.h"
#include "deleteThread.h"
#define ETAS_MAX_VALUES 8
// Main constructor
bittorrent::bittorrent(){
// To avoid some exceptions
fs::path::default_name_check(fs::no_check);
// Supported preview extensions
// XXX: A bit dirty to do it this way (use mime types?)
supported_preview_extensions << "AVI" << "DIVX" << "MPG" << "MPEG" << "MPE" << "MP3" << "OGG" << "WMV" << "WMA" << "RMV" << "RMVB" << "ASF" << "MOV" << "WAV" << "MP2" << "SWF" << "AC3" << "OGM" << "MP4" << "FLV" << "VOB" << "QT" << "MKV" << "AIF" << "AIFF" << "AIFC" << "MID" << "MPG" << "RA" << "RAM" << "AU" << "M4A" << "FLAC" << "M4P" << "3GP" << "AAC" << "RM" << "SWA" << "MPC" << "MPP";
// Creating bittorrent session
s = new session(fingerprint("qB", VERSION_MAJOR, VERSION_MINOR, VERSION_BUGFIX, 0));
// Set severity level of libtorrent session
s->set_severity_level(alert::info);
// DHT (Trackerless), disabled until told otherwise
DHTEnabled = false;
// Enabling metadata plugin
s->add_extension(&create_metadata_plugin);
connect(&timerAlerts, SIGNAL(timeout()), this, SLOT(readAlerts()));
timerAlerts.start(3000);
connect(&ETARefresher, SIGNAL(timeout()), this, SLOT(updateETAs()));
ETARefresher.start(6000);
// To download from urls
downloader = new downloadThread(this);
connect(downloader, SIGNAL(downloadFinished(QString, QString)), this, SLOT(processDownloadedFile(QString, QString)));
connect(downloader, SIGNAL(downloadFailure(QString, QString)), this, SLOT(HandleDownloadFailure(QString, QString)));
}
// Main destructor
bittorrent::~bittorrent(){
disableDirectoryScanning();
delete downloader;
delete s;
}
void bittorrent::resumeUnfinishedTorrents(){
// Resume unfinished torrents
resumeUnfinished();
}
void bittorrent::setDownloadLimit(QString hash, int val){
torrent_handle h = getTorrentHandle(hash);
h.set_download_limit(val);
saveTorrentSpeedLimits(hash);
}
void bittorrent::setUploadLimit(QString hash, int val){
qDebug("Set upload limit rate to %d", val);
torrent_handle h = getTorrentHandle(hash);
h.set_upload_limit(val);
saveTorrentSpeedLimits(hash);
}
void bittorrent::HandleDownloadFailure(QString url, QString reason){
emit downloadFromUrlFailure(url, reason);
}
void bittorrent::updateETAs(){
std::vector<torrent_handle> handles = s->get_torrents();
for(unsigned int i=0; i<handles.size(); ++i){
torrent_handle h = handles[i];
if(h.is_valid()){
QString hash = QString(misc::toString(h.info_hash()).c_str());
QList<long> listEtas = ETAstats.value(hash, QList<long>());
if(listEtas.size() == ETAS_MAX_VALUES){
listEtas.removeFirst();
}
torrent_status torrentStatus = h.status();
torrent_info ti = h.get_torrent_info();
if(torrentStatus.download_payload_rate != 0){
listEtas << (long)((ti.total_size()-torrentStatus.total_done)/(double)torrentStatus.download_payload_rate);
ETAstats[hash] = listEtas;
long moy = 0;
long val;
foreach(val, listEtas){
moy += val;
}
ETAs[hash] = (long) ((double)moy/(double)listEtas.size());
}
}
}
}
long bittorrent::getETA(QString hash) const{
return ETAs.value(hash, -1);
}
// Return the torrent handle, given its hash
torrent_handle bittorrent::getTorrentHandle(QString hash) const{
return s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
}
// Return true if the torrent corresponding to the
// hash is paused
bool bittorrent::isPaused(QString hash) const{
torrent_handle h = s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return true;
}
return h.is_paused();
}
// Delete a torrent from the session, given its hash
// permanent = true means that the torrent will be removed from the hard-drive too
void bittorrent::deleteTorrent(QString hash, bool permanent){
torrent_handle h = s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return;
}
QString savePath = QString::fromUtf8(h.save_path().string().c_str());
QString fileName = QString(h.name().c_str());
// Remove it from session
s->remove_torrent(h);
// Remove it from torrent backup directory
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
torrentBackup.remove(hash+".torrent");
torrentBackup.remove(hash+".fastresume");
torrentBackup.remove(hash+".paused");
torrentBackup.remove(hash+".incremental");
torrentBackup.remove(hash+".priorities");
torrentBackup.remove(hash+".savepath");
torrentBackup.remove(hash+".trackers");
torrentBackup.remove(hash+".speedLimits");
torrentBackup.remove(hash+".ratio");
// Remove it from ETAs hash tables
ETAstats.take(hash);
ETAs.take(hash);
// Remove it from ratio table
ratioData.take(hash);
int index = fullAllocationModeList.indexOf(hash);
if(index != -1)
fullAllocationModeList.removeAt(index);
if(permanent){
// Remove from Hard drive
qDebug("Removing this on hard drive: %s", qPrintable(savePath+QDir::separator()+fileName));
// Deleting in a thread to avoid GUI freeze
deleteThread *deleter = new deleteThread(savePath+QDir::separator()+fileName);
connect(deleter, SIGNAL(deletionFinished(deleteThread*)), this, SLOT(cleanDeleter(deleteThread*)));
}
}
// slot to destroy a deleteThread once it finished deletion
void bittorrent::cleanDeleter(deleteThread* deleter){
qDebug("Deleting deleteThread because it finished deletion");
delete deleter;
}
// Pause a running torrent
void bittorrent::pauseTorrent(QString hash){
torrent_handle h = s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
if(h.is_valid() && !h.is_paused()){
h.pause();
// Create .paused file
QFile paused_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".paused");
paused_file.open(QIODevice::WriteOnly | QIODevice::Text);
paused_file.close();
int index = torrentsToPauseAfterChecking.indexOf(hash);
if(index != -1) {
torrentsToPauseAfterChecking.removeAt(index);
qDebug("A torrent was paused just after checking, good");
}
}
}
// Resume a torrent in paused state
void bittorrent::resumeTorrent(QString hash){
torrent_handle h = s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
if(h.is_valid() && h.is_paused()){
h.resume();
// Delete .paused file
QFile::remove(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".paused");
}
}
// Add a torrent to the bittorrent session
void bittorrent::addTorrent(QString path, bool fromScanDir, bool onStartup, QString from_url){
torrent_handle h;
entry resume_data;
bool fastResume=false;
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
QString file, dest_file, scan_dir;
// Checking if BT_backup Dir exists
// create it if it is not
if(! torrentBackup.exists()){
if(! torrentBackup.mkpath(torrentBackup.path())){
std::cerr << "Couldn't create the directory: '" << (const char*)(torrentBackup.path().toUtf8()) << "'\n";
exit(1);
}
}
// Processing torrents
file = path.trimmed().replace("file:https://", "");
if(file.isEmpty()){
return;
}
qDebug("Adding %s to download list", (const char*)file.toUtf8());
std::ifstream in((const char*)file.toUtf8(), std::ios_base::binary);
in.unsetf(std::ios_base::skipws);
try{
// Decode torrent file
entry e = bdecode(std::istream_iterator<char>(in), std::istream_iterator<char>());
// Getting torrent file informations
torrent_info t(e);
QString hash = QString(misc::toString(t.info_hash()).c_str());
if(onStartup){
qDebug("Added a hash to the unchecked torrents list");
torrentsUnchecked << hash;
}
if(s->find_torrent(t.info_hash()).is_valid()){
// Update info Bar
if(!fromScanDir){
if(!from_url.isNull()){
// If download from url, remove temp file
QFile::remove(file);
emit duplicateTorrent(from_url);
}else{
emit duplicateTorrent(file);
}
}else{
// Delete torrent from scan dir
QFile::remove(file);
}
return;
}
// TODO: Remove this in a few releases (just for backward compatibility)
if(torrentBackup.exists(QString(t.name().c_str())+".torrent")){
QFile::rename(torrentBackup.path()+QDir::separator()+QString(t.name().c_str())+".torrent", torrentBackup.path()+QDir::separator()+hash+".torrent");
QFile::rename(torrentBackup.path()+QDir::separator()+QString(t.name().c_str())+".fastresume", torrentBackup.path()+QDir::separator()+hash+".fastresume");
QFile::rename(torrentBackup.path()+QDir::separator()+QString(t.name().c_str())+".savepath", torrentBackup.path()+QDir::separator()+hash+".savepath");
QFile::rename(torrentBackup.path()+QDir::separator()+QString(t.name().c_str())+".paused", torrentBackup.path()+QDir::separator()+hash+".paused");
QFile::rename(torrentBackup.path()+QDir::separator()+QString(t.name().c_str())+".incremental", torrentBackup.path()+QDir::separator()+hash+".incremental");
file = torrentBackup.path() + QDir::separator() + hash + ".torrent";
}
//Getting fast resume data if existing
if(torrentBackup.exists(hash+".fastresume")){
try{
std::stringstream strStream;
strStream << hash.toStdString() << ".fastresume";
boost::filesystem::ifstream resume_file(fs::path((const char*)torrentBackup.path().toUtf8()) / strStream.str(), std::ios_base::binary);
resume_file.unsetf(std::ios_base::skipws);
resume_data = bdecode(std::istream_iterator<char>(resume_file), std::istream_iterator<char>());
fastResume=true;
}catch (invalid_encoding&) {}
catch (fs::filesystem_error&) {}
}
QString savePath = getSavePath(hash);
// Adding files to bittorrent session
if(hasFilteredFiles(hash)){
h = s->add_torrent(t, fs::path((const char*)savePath.toUtf8()), resume_data, false);
int index = fullAllocationModeList.indexOf(hash);
if(index == -1){
fullAllocationModeList << hash;
}
qDebug("Full allocation mode");
}else{
h = s->add_torrent(t, fs::path((const char*)savePath.toUtf8()), resume_data, true);
qDebug("Compact allocation mode");
}
if(!h.is_valid()){
// No need to keep on, it failed.
qDebug("/!\\ Error: Invalid handle");
// If download from url, remove temp file
if(!from_url.isNull()) QFile::remove(file);
return;
}
// Is this really useful and appropriate ?
//h.set_max_connections(60);
h.set_max_uploads(-1);
qDebug("Torrent hash is " + hash.toUtf8());
// Load filtered files
loadFilesPriorities(h);
// Load speed limit from hard drive
loadTorrentSpeedLimits(hash);
// Load ratio data
loadDownloadUploadForTorrent(hash);
// Load trackers
bool loaded_trackers = loadTrackerFile(hash);
// Doing this to order trackers well
if(!loaded_trackers){
saveTrackerFile(hash);
loadTrackerFile(hash);
}
torrent_status torrentStatus = h.status();
QString newFile = torrentBackup.path() + QDir::separator() + hash + ".torrent";
if(file != newFile){
// Delete file from torrentBackup directory in case it exists because
// QFile::copy() do not overwrite
QFile::remove(newFile);
// Copy it to torrentBackup directory
QFile::copy(file, newFile);
}
// Pause torrent if it was paused last time
if(QFile::exists(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".paused")){
torrentsToPauseAfterChecking << hash;
qDebug("Adding a torrent to the torrentsToPauseAfterChecking list");
}
// Incremental download
if(QFile::exists(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".incremental")){
qDebug("Incremental download enabled for %s", t.name().c_str());
h.set_sequenced_download_threshold(15);
}
// If download from url, remove temp file
if(!from_url.isNull()) QFile::remove(file);
// Delete from scan dir to avoid trying to download it again
if(fromScanDir){
QFile::remove(file);
}
// Send torrent addition signal
if(!from_url.isNull()){
emit addedTorrent(from_url, h, fastResume);
}else{
emit addedTorrent(file, h, fastResume);
}
}catch (invalid_encoding& e){ // Raised by bdecode()
std::cerr << "Could not decode file, reason: " << e.what() << '\n';
// Display warning to tell user we can't decode the torrent file
if(!from_url.isNull()){
emit invalidTorrent(from_url);
}else{
emit invalidTorrent(file);
}
if(fromScanDir){
// Remove .corrupt file in case it already exists
QFile::remove(file+".corrupt");
//Rename file extension so that it won't display error message more than once
QFile::rename(file,file+".corrupt");
}
}
catch (invalid_torrent_file&){ // Raised by torrent_info constructor
// Display warning to tell user we can't decode the torrent file
if(!from_url.isNull()){
emit invalidTorrent(from_url);
}else{
emit invalidTorrent(file);
}
if(fromScanDir){
// Remove .corrupt file in case it already exists
QFile::remove(file+".corrupt");
//Rename file extension so that it won't display error message more than once
QFile::rename(file,file+".corrupt");
}
}
}
QStringList bittorrent::getTorrentsToPauseAfterChecking() const{
return torrentsToPauseAfterChecking;
}
// Set the maximum number of opened connections
void bittorrent::setMaxConnections(int maxConnec){
s->set_max_connections(maxConnec);
}
// Check in .priorities file if the user filtered files
// in this torrent.
bool bittorrent::hasFilteredFiles(QString fileHash) const{
QFile pieces_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+fileHash+".priorities");
// Read saved file
if(!pieces_file.open(QIODevice::ReadOnly | QIODevice::Text)){
return false;
}
QByteArray pieces_text = pieces_file.readAll();
pieces_file.close();
QList<QByteArray> pieces_priorities_list = pieces_text.split('\n');
unsigned int listSize = pieces_priorities_list.size();
for(unsigned int i=0; i<listSize-1; ++i){
int priority = pieces_priorities_list.at(i).toInt();
if( priority < 0 || priority > 7){
priority = 1;
}
if(!priority){
return true;
}
}
return false;
}
// get the size of the torrent without the filtered files
size_type bittorrent::torrentEffectiveSize(QString hash) const{
torrent_handle h = getTorrentHandle(hash);
torrent_info t = h.get_torrent_info();
unsigned int nbFiles = t.num_files();
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return t.total_size();
}
QFile pieces_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".priorities");
// Read saved file
if(!pieces_file.open(QIODevice::ReadOnly | QIODevice::Text)){
qDebug("* Error: Couldn't open priorities file");
return t.total_size();
}
QByteArray pieces_priorities = pieces_file.readAll();
pieces_file.close();
QList<QByteArray> pieces_priorities_list = pieces_priorities.split('\n');
if((unsigned int)pieces_priorities_list.size() != nbFiles+1){
std::cerr << "* Error: Corrupted priorities file\n";
return t.total_size();
}
size_type effective_size = 0;
for(unsigned int i=0; i<nbFiles; ++i){
int priority = pieces_priorities_list.at(i).toInt();
if( priority < 0 || priority > 7){
priority = 1;
}
if(priority)
effective_size += t.file_at(i).size;
}
return effective_size;
}
// Return DHT state
bool bittorrent::isDHTEnabled() const{
return DHTEnabled;
}
// Enable DHT
void bittorrent::enableDHT(){
if(!DHTEnabled){
boost::filesystem::ifstream dht_state_file((const char*)(misc::qBittorrentPath()+QString("dht_state")).toUtf8(), std::ios_base::binary);
dht_state_file.unsetf(std::ios_base::skipws);
entry dht_state;
try{
dht_state = bdecode(std::istream_iterator<char>(dht_state_file), std::istream_iterator<char>());
}catch (std::exception&) {}
s->start_dht(dht_state);
s->add_dht_router(std::make_pair(std::string("router.bittorrent.com"), 6881));
s->add_dht_router(std::make_pair(std::string("router.utorrent.com"), 6881));
s->add_dht_router(std::make_pair(std::string("router.bitcomet.com"), 6881));
DHTEnabled = true;
qDebug("DHT enabled");
}
}
// Disable DHT
void bittorrent::disableDHT(){
if(DHTEnabled){
DHTEnabled = false;
s->stop_dht();
qDebug("DHT disabled");
}
}
void bittorrent::saveTorrentSpeedLimits(QString hash){
qDebug("Saving speedLimits file for %s", (const char*)hash.toUtf8());
torrent_handle h = getTorrentHandle(hash);
int download_limit = h.download_limit();
int upload_limit = h.upload_limit();
QFile speeds_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".speedLimits");
if(!speeds_file.open(QIODevice::WriteOnly | QIODevice::Text)){
qDebug("* Error: Couldn't open speed limits file for torrent: %s", (const char*)hash.toUtf8());
return;
}
speeds_file.write(QByteArray(misc::toString(download_limit).c_str())+QByteArray(" ")+QByteArray(misc::toString(upload_limit).c_str()));
speeds_file.close();
}
void bittorrent::loadTorrentSpeedLimits(QString hash){
qDebug("Loading speedLimits file for %s", (const char*)hash.toUtf8());
torrent_handle h = getTorrentHandle(hash);
QFile speeds_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".speedLimits");
if(!speeds_file.open(QIODevice::ReadOnly | QIODevice::Text)){
return;
}
QByteArray speed_limits = speeds_file.readAll();
speeds_file.close();
QList<QByteArray> speeds = speed_limits.split(' ');
if(speeds.size() != 2){
std::cerr << "Invalid .speedLimits file for " << hash.toStdString() << '\n';
return;
}
h.set_download_limit(speeds.at(0).toInt());
h.set_upload_limit(speeds.at(1).toInt());
}
// Read pieces priorities from .priorities file
// and ask torrent_handle to consider them
void bittorrent::loadFilesPriorities(torrent_handle &h){
torrent_info torrentInfo = h.get_torrent_info();
unsigned int nbFiles = torrentInfo.num_files();
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return;
}
QString fileHash = QString(misc::toString(torrentInfo.info_hash()).c_str());
QFile pieces_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+fileHash+".priorities");
// Read saved file
if(!pieces_file.open(QIODevice::ReadOnly | QIODevice::Text)){
qDebug("* Error: Couldn't open priorities file");
return;
}
QByteArray pieces_priorities = pieces_file.readAll();
pieces_file.close();
QList<QByteArray> pieces_priorities_list = pieces_priorities.split('\n');
if((unsigned int)pieces_priorities_list.size() != nbFiles+1){
std::cerr << "* Error: Corrupted priorities file\n";
return;
}
std::vector<int> v;
for(unsigned int i=0; i<nbFiles; ++i){
int priority = pieces_priorities_list.at(i).toInt();
if( priority < 0 || priority > 7){
priority = 1;
}
//qDebug("Setting piece piority to %d", priority);
v.push_back(priority);
}
h.prioritize_files(v);
}
void bittorrent::loadDownloadUploadForTorrent(QString hash){
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
// Checking if torrentBackup Dir exists
// create it if it is not
if(! torrentBackup.exists()){
torrentBackup.mkpath(torrentBackup.path());
}
qDebug("Loading ratio data for %s", (const char*)hash.toUtf8());
QFile ratio_file(torrentBackup.path()+QDir::separator()+ hash + ".ratio");
if(!ratio_file.open(QIODevice::ReadOnly | QIODevice::Text)){
return;
}
QByteArray data = ratio_file.readAll();
QList<QByteArray> data_list = data.split(' ');
if(data_list.size() != 2){
std::cerr << "Corrupted ratio file for torrent: " << hash.toStdString() << '\n';
return;
}
QPair<size_type,size_type> downUp;
downUp.first = (size_type)data_list.at(0).toLong();
downUp.second = (size_type)data_list.at(1).toLong();
ratioData[hash] = downUp;
}
// To remember share ratio or a torrent, we must save current
// total_upload and total_upload and reload them on startup
void bittorrent::saveDownloadUploadForTorrent(QString hash){
qDebug("Saving ratio data for torrent %s", (const char*)hash.toUtf8());
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
// Checking if torrentBackup Dir exists
// create it if it is not
if(! torrentBackup.exists()){
torrentBackup.mkpath(torrentBackup.path());
}
torrent_handle h = getTorrentHandle(hash);
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return;
}
torrent_status torrentStatus = h.status();
QString fileHash = QString(misc::toString(h.info_hash()).c_str());
QPair<size_type,size_type> ratioInfo = ratioData.value(fileHash, QPair<size_type, size_type>(0,0));
long download = torrentStatus.total_payload_download;
download += ratioInfo.first;
long upload = torrentStatus.total_payload_upload;
upload += ratioInfo.second;
QFile ratio_file(torrentBackup.path()+QDir::separator()+ fileHash + ".ratio");
if(!ratio_file.open(QIODevice::WriteOnly | QIODevice::Text)){
std::cerr << "Couldn't save ratio data for torrent: " << fileHash.toStdString() << '\n';
return;
}
ratio_file.write(QByteArray(misc::toString(download).c_str()) + QByteArray(" ") + QByteArray(misc::toString(upload).c_str()));
ratio_file.close();
}
// Save fastresume data for all torrents
// and remove them from the session
void bittorrent::saveFastResumeData(){
qDebug("Saving fast resume data");
QString file;
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
// Checking if torrentBackup Dir exists
// create it if it is not
if(! torrentBackup.exists()){
torrentBackup.mkpath(torrentBackup.path());
}
// Write fast resume data
std::vector<torrent_handle> handles = s->get_torrents();
for(unsigned int i=0; i<handles.size(); ++i){
torrent_handle &h = handles[i];
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
continue;
}
// Pause download (needed before fast resume writing)
h.pause();
// Extracting resume data
if (h.has_metadata()){
QString fileHash = QString(misc::toString(h.info_hash()).c_str());
if(QFile::exists(torrentBackup.path()+QDir::separator()+fileHash+".torrent")){
// Remove old .fastresume data in case it exists
QFile::remove(torrentBackup.path()+QDir::separator()+fileHash + ".fastresume");
// Write fast resume data
entry resumeData = h.write_resume_data();
file = fileHash + ".fastresume";
boost::filesystem::ofstream out(fs::path((const char*)torrentBackup.path().toUtf8()) / (const char*)file.toUtf8(), std::ios_base::binary);
out.unsetf(std::ios_base::skipws);
bencode(std::ostream_iterator<char>(out), resumeData);
}
// Save ratio data
saveDownloadUploadForTorrent(fileHash);
// Save trackers
saveTrackerFile(fileHash);
}
// Remove torrent
s->remove_torrent(h);
}
qDebug("Fast resume data saved");
}
bool bittorrent::isFilePreviewPossible(QString hash) const{
// See if there are supported files in the torrent
torrent_handle h = s->find_torrent(misc::fromString<sha1_hash>((hash.toStdString())));
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return false;
}
torrent_info torrentInfo = h.get_torrent_info();
for(int i=0; i<torrentInfo.num_files(); ++i){
QString fileName = QString(torrentInfo.file_at(i).path.leaf().c_str());
QString extension = fileName.split('.').last().toUpper();
if(supported_preview_extensions.indexOf(extension) >= 0){
return true;
}
}
return false;
}
// Scan the first level of the directory for torrent files
// and add them to download list
void bittorrent::scanDirectory(){
QString file;
if(!scan_dir.isNull()){
QStringList to_add;
QDir dir(scan_dir);
QStringList files = dir.entryList(QDir::Files, QDir::Unsorted);
foreach(file, files){
QString fullPath = dir.path()+QDir::separator()+file;
if(fullPath.endsWith(".torrent")){
QFile::rename(fullPath, fullPath+QString(".old"));
to_add << fullPath+QString(".old");
}
}
emit scanDirFoundTorrents(to_add);
}
}
void bittorrent::setDefaultSavePath(QString savepath){
defaultSavePath = savepath;
}
// Enable directory scanning
void bittorrent::enableDirectoryScanning(QString _scan_dir){
if(!_scan_dir.isEmpty()){
scan_dir = _scan_dir;
timerScan = new QTimer(this);
connect(timerScan, SIGNAL(timeout()), this, SLOT(scanDirectory()));
timerScan->start(5000);
}
}
// Disable directory scanning
void bittorrent::disableDirectoryScanning(){
if(!scan_dir.isNull()){
scan_dir = QString::null;
if(timerScan->isActive()){
timerScan->stop();
}
delete timerScan;
}
}
// Set the ports range in which is chosen the port the bittorrent
// session will listen to
void bittorrent::setListeningPortsRange(std::pair<unsigned short, unsigned short> ports){
s->listen_on(ports);
}
// Set download rate limit
// -1 to disable
void bittorrent::setDownloadRateLimit(int rate){
s->set_download_rate_limit(rate);
}
session* bittorrent::getSession() const{
return s;
}
// Set upload rate limit
// -1 to disable
void bittorrent::setUploadRateLimit(int rate){
s->set_upload_rate_limit(rate);
}
// libtorrent allow to adjust ratio for each torrent
// This function will apply to same ratio to all torrents
void bittorrent::setGlobalRatio(float ratio){
std::vector<torrent_handle> handles = s->get_torrents();
for(unsigned int i=0; i<handles.size(); ++i){
torrent_handle h = handles[i];
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
continue;
}
h.set_ratio(ratio);
}
}
bool bittorrent::loadTrackerFile(QString hash){
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
QFile tracker_file(torrentBackup.path()+QDir::separator()+ hash + ".trackers");
if(!tracker_file.exists()) return false;
tracker_file.open(QIODevice::ReadOnly | QIODevice::Text);
QStringList lines = QString(tracker_file.readAll().data()).split("\n");
std::vector<announce_entry> trackers;
QString line;
foreach(line, lines){
QStringList parts = line.split("|");
if(parts.size() != 2) continue;
announce_entry t(parts[0].toStdString());
t.tier = parts[1].toInt();
trackers.push_back(t);
}
if(trackers.size() != 0){
torrent_handle h = getTorrentHandle(hash);
h.replace_trackers(trackers);
return true;
}else{
return false;
}
}
void bittorrent::saveTrackerFile(QString hash){
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
QFile tracker_file(torrentBackup.path()+QDir::separator()+ hash + ".trackers");
if(tracker_file.exists()){
tracker_file.remove();
}
tracker_file.open(QIODevice::WriteOnly | QIODevice::Text);
torrent_handle h = getTorrentHandle(hash);
std::vector<announce_entry> trackers = h.trackers();
for(unsigned int i=0; i<trackers.size(); ++i){
tracker_file.write(QByteArray(trackers[i].url.c_str())+QByteArray("|")+QByteArray(misc::toString(i).c_str())+QByteArray("\n"));
}
tracker_file.close();
}
// Pause all torrents in session
bool bittorrent::pauseAllTorrents(){
bool paused_torrents = false;
std::vector<torrent_handle> handles = s->get_torrents();
for(unsigned int i=0; i<handles.size(); ++i){
torrent_handle h = handles[i];
if(h.is_valid() && !h.is_paused()){
h.pause();
paused_torrents = true;
}
}
return paused_torrents;
}
// Resume all torrents in session
bool bittorrent::resumeAllTorrents(){
bool resumed_torrents = false;
std::vector<torrent_handle> handles = s->get_torrents();
for(unsigned int i=0; i<handles.size(); ++i){
torrent_handle h = handles[i];
if(h.is_valid() && h.is_paused()){
h.resume();
resumed_torrents = true;
}
}
return resumed_torrents;
}
// Add uT PeX extension to bittorrent session
void bittorrent::enablePeerExchange(){
qDebug("Enabling Peer eXchange");
s->add_extension(&create_ut_pex_plugin);
}
// Set DHT port (>= 1000)
void bittorrent::setDHTPort(int dht_port){
if(dht_port >= 1000){
struct dht_settings DHTSettings;
DHTSettings.service_port = dht_port;
s->set_dht_settings(DHTSettings);
qDebug("Set DHT Port to %d", dht_port);
}
}
// Enable IP Filtering
void bittorrent::enableIPFilter(ip_filter filter){
qDebug("Enabling IPFiler");
s->set_ip_filter(filter);
}
// Disable IP Filtering
void bittorrent::disableIPFilter(){
qDebug("Disable IPFilter");
s->set_ip_filter(ip_filter());
qDebug("IPFilter disabled");
}
// Set BT session settings (user_agent)
void bittorrent::setSessionSettings(session_settings sessionSettings){
qDebug("Set session settings");
s->set_settings(sessionSettings);
}
// Set Proxy
void bittorrent::setProxySettings(proxy_settings proxySettings, bool trackers, bool peers, bool web_seeds, bool dht){
qDebug("Set Proxy settings");
if(trackers)
s->set_tracker_proxy(proxySettings);
if(peers)
s->set_peer_proxy(proxySettings);
if(web_seeds)
s->set_web_seed_proxy(proxySettings);
if(DHTEnabled && dht){
s->set_dht_proxy(proxySettings);
}
}
// Read alerts sent by the bittorrent session
void bittorrent::readAlerts(){
// look at session alerts and display some infos
std::auto_ptr<alert> a = s->pop_alert();
while (a.get()){
if (torrent_finished_alert* p = dynamic_cast<torrent_finished_alert*>(a.get())){
emit finishedTorrent(p->handle);
}
else if (file_error_alert* p = dynamic_cast<file_error_alert*>(a.get())){
emit fullDiskError(p->handle);
}
else if (dynamic_cast<listen_failed_alert*>(a.get())){
// Level: fatal
emit portListeningFailure();
}
else if (tracker_alert* p = dynamic_cast<tracker_alert*>(a.get())){
// Level: fatal
QString fileHash = QString(misc::toString(p->handle.info_hash()).c_str());
emit trackerError(fileHash, QTime::currentTime().toString("hh:mm:ss"), QString(a->msg().c_str()));
// Authentication
if(p->status_code == 401){
emit trackerAuthenticationRequired(p->handle);
}
}
else if (peer_blocked_alert* p = dynamic_cast<peer_blocked_alert*>(a.get())){
emit peerBlocked(QString(p->ip.to_string().c_str()));
}
else if (fastresume_rejected_alert* p = dynamic_cast<fastresume_rejected_alert*>(a.get())){
emit fastResumeDataRejected(QString(p->handle.name().c_str()));
}
a = s->pop_alert();
}
}
// Reload a torrent with full allocation mode
void bittorrent::reloadTorrent(const torrent_handle &h){
qDebug("** Reloading a torrent");
if(!h.is_valid()){
qDebug("/!\\ Error: Invalid handle");
return;
}
QDir torrentBackup(misc::qBittorrentPath() + "BT_backup");
fs::path saveDir = h.save_path();
QString fileName = QString(h.name().c_str());
QString fileHash = QString(misc::toString(h.info_hash()).c_str());
int index = fullAllocationModeList.indexOf(fileHash);
if(index == -1){
fullAllocationModeList << fileHash;
}
qDebug("Reloading torrent: %s", (const char*)fileName.toUtf8());
torrent_handle new_h;
entry resumeData;
torrent_info t = h.get_torrent_info();
// Checking if torrentBackup Dir exists
// create it if it is not
if(! torrentBackup.exists()){
torrentBackup.mkpath(torrentBackup.path());
}
// Write fast resume data
// Pause download (needed before fast resume writing)
h.pause();
// Extracting resume data
if (h.has_metadata()){
// get fast resume data
resumeData = h.write_resume_data();
}
// Remove torrent
s->remove_torrent(h);
// Add torrent again to session
unsigned short timeout = 0;
while(h.is_valid() && timeout < 6){
SleeperThread::msleep(1000);
++timeout;
}
if(h.is_valid()){
std::cerr << "Error: Couldn't reload the torrent\n";
return;
}
new_h = s->add_torrent(t, saveDir, resumeData, false);
qDebug("Using full allocation mode");
// new_h.set_max_connections(60);
new_h.set_max_uploads(-1);
// Load filtered Files
loadFilesPriorities(new_h);
// Load speed limit from hard drive
loadTorrentSpeedLimits(fileHash);
// Load ratio data
loadDownloadUploadForTorrent(fileHash);
// Pause torrent if it was paused last time
if(QFile::exists(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+fileHash+".paused")){
new_h.pause();
}
// Incremental download
if(QFile::exists(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+fileHash+".incremental")){
qDebug("Incremental download enabled for %s", (const char*)fileName.toUtf8());
new_h.set_sequenced_download_threshold(15);
}
}
int bittorrent::getListenPort() const{
return s->listen_port();
}
float bittorrent::getRealRatio(QString hash) const{
QPair<size_type,size_type> downUpInfo = ratioData.value(hash, QPair<size_type,size_type>(0,0));
size_type download = downUpInfo.first;
size_type upload = downUpInfo.second;
torrent_handle h = getTorrentHandle(hash);
torrent_status torrentStatus = h.status();
download += torrentStatus.total_payload_download;
upload += torrentStatus.total_payload_upload;
if(download == 0){
if(upload == 0)
return 1.;
return 10.;
}
float ratio = (float)upload / (float)download;
if(ratio > 10.)
ratio = 10.;
return ratio;
}
session_status bittorrent::getSessionStatus() const{
return s->status();
}
bool bittorrent::inFullAllocationMode(QString hash) const{
if(fullAllocationModeList.indexOf(hash) != -1)
return true;
return false;
}
QString bittorrent::getSavePath(QString hash){
QFile savepath_file(misc::qBittorrentPath()+"BT_backup"+QDir::separator()+hash+".savepath");