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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
|
/* This file is part of the KDE project
Copyright (C) 2004 David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "trashimpl.h"
#include "discspaceutil.h"
#include <tdelocale.h>
#include <klargefile.h>
#include <tdeio/global.h>
#include <tdeio/renamedlg.h>
#include <tdeio/job.h>
#include <kdebug.h>
#include <kurl.h>
#include <kdirnotify_stub.h>
#include <tdeglobal.h>
#include <kstandarddirs.h>
#include <tdeglobalsettings.h>
#include <kmountpoint.h>
#include <tdefileitem.h>
#include <tdeio/chmodjob.h>
#include <dcopref.h>
#include <tqapplication.h>
#include <tqeventloop.h>
#include <tqfile.h>
#include <tqdir.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/param.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <stdlib.h>
#include <errno.h>
TrashImpl::TrashImpl() :
TQObject(),
m_lastErrorCode( 0 ),
m_initStatus( InitToBeDone ),
m_lastId( 0 ),
m_homeDevice( 0 ),
m_trashDirectoriesScanned( false ),
m_mibEnum( TDEGlobal::locale()->fileEncodingMib() ),
// not using tdeio_trashrc since TDEIO uses that one already for tdeio_trash
// so better have a separate one, for faster parsing by e.g. kmimetype.cpp
m_config( "trashrc" )
{
KDE_struct_stat buff;
if ( KDE_lstat( TQFile::encodeName( TQDir::homeDirPath() ), &buff ) == 0 ) {
m_homeDevice = buff.st_dev;
} else {
kdError() << "Should never happen: couldn't stat $HOME " << strerror( errno ) << endl;
}
}
/**
* Test if a directory exists, create otherwise
* @param _name full path of the directory
* @return errorcode, or 0 if the dir was created or existed already
* Warning, don't use return value like a bool
*/
int TrashImpl::testDir( const TQString &_name ) const
{
DIR *dp = opendir( TQFile::encodeName(_name) );
if ( dp == NULL )
{
TQString name = _name;
if ( name.endsWith( "/" ) )
name.truncate( name.length() - 1 );
TQCString path = TQFile::encodeName(name);
bool ok = ::mkdir( path, S_IRWXU ) == 0;
if ( !ok && errno == EEXIST ) {
#if 0 // this would require to use SlaveBase's method to ask the question
//int ret = KMessageBox::warningYesNo( 0, i18n("%1 is a file, but TDE needs it to be a directory. Move it to %2.orig and create directory?").arg(name).arg(name) );
//if ( ret == KMessageBox::Yes ) {
#endif
if ( ::rename( path, path + ".orig" ) == 0 ) {
ok = ::mkdir( path, S_IRWXU ) == 0;
} else { // foo.orig existed already. How likely is that?
ok = false;
}
if ( !ok ) {
return TDEIO::ERR_DIR_ALREADY_EXIST;
}
#if 0
//} else {
// return 0;
//}
#endif
}
if ( !ok )
{
//KMessageBox::sorry( 0, i18n( "Couldn't create directory %1. Check for permissions." ).arg( name ) );
kdWarning() << "could not create " << name << endl;
return TDEIO::ERR_COULD_NOT_MKDIR;
} else {
kdDebug() << name << " created." << endl;
}
}
else // exists already
{
closedir( dp );
}
return 0; // success
}
bool TrashImpl::init()
{
if ( m_initStatus == InitOK )
return true;
if ( m_initStatus == InitError )
return false;
// Check the trash directory and its info and files subdirs
// see also kdesktop/init.cc for first time initialization
m_initStatus = InitError;
// $XDG_DATA_HOME/Trash, i.e. ~/.local/share/Trash by default.
const TQString xdgDataDir = TDEGlobal::dirs()->localxdgdatadir();
if ( !TDEStandardDirs::makeDir( xdgDataDir, 0700 ) ) {
kdWarning() << "failed to create " << xdgDataDir << endl;
return false;
}
const TQString trashDir = xdgDataDir + "Trash";
int err;
if ( ( err = testDir( trashDir ) ) ) {
error( err, trashDir );
return false;
}
if ( ( err = testDir( trashDir + "/info" ) ) ) {
error( err, trashDir + "/info" );
return false;
}
if ( ( err = testDir( trashDir + "/files" ) ) ) {
error( err, trashDir + "/files" );
return false;
}
m_trashDirectories.insert( 0, trashDir );
m_initStatus = InitOK;
kdDebug() << k_funcinfo << "initialization OK, home trash dir: " << trashDir << endl;
return true;
}
void TrashImpl::migrateOldTrash()
{
kdDebug() << k_funcinfo << endl;
const TQString oldTrashDir = TDEGlobalSettings::trashPath();
const TQStrList entries = listDir( oldTrashDir );
bool allOK = true;
TQStrListIterator entryIt( entries );
for (; entryIt.current(); ++entryIt) {
TQString srcPath = TQFile::decodeName( *entryIt );
if ( srcPath == "." || srcPath == ".." || srcPath == ".directory" )
continue;
srcPath.prepend( oldTrashDir ); // make absolute
int trashId;
TQString fileId;
if ( !createInfo( srcPath, trashId, fileId ) ) {
kdWarning() << "Trash migration: failed to create info for " << srcPath << endl;
allOK = false;
} else {
bool ok = moveToTrash( srcPath, trashId, fileId );
if ( !ok ) {
(void)deleteInfo( trashId, fileId );
kdWarning() << "Trash migration: failed to create info for " << srcPath << endl;
allOK = false;
} else {
kdDebug() << "Trash migration: moved " << srcPath << endl;
}
}
}
if ( allOK ) {
// We need to remove the old one, otherwise the desktop will have two trashcans...
kdDebug() << "Trash migration: all OK, removing old trash directory" << endl;
synchronousDel( oldTrashDir, false, true );
}
}
bool TrashImpl::createInfo( const TQString& origPath, int& trashId, TQString& fileId )
{
kdDebug() << k_funcinfo << origPath << endl;
// Check source
const TQCString origPath_c( TQFile::encodeName( origPath ) );
KDE_struct_stat buff_src;
if ( KDE_lstat( origPath_c.data(), &buff_src ) == -1 ) {
if ( errno == EACCES )
error( TDEIO::ERR_ACCESS_DENIED, origPath );
else
error( TDEIO::ERR_DOES_NOT_EXIST, origPath );
return false;
}
// Choose destination trash
trashId = findTrashDirectory( origPath );
if ( trashId < 0 ) {
kdWarning() << "OUCH - internal error, TrashImpl::findTrashDirectory returned " << trashId << endl;
return false; // ### error() needed?
}
kdDebug() << k_funcinfo << "trashing to " << trashId << endl;
// Grab original filename
KURL url;
url.setPath( origPath );
const TQString origFileName = url.fileName();
// Make destination file in info/
url.setPath( infoPath( trashId, origFileName ) ); // we first try with origFileName
KURL baseDirectory;
baseDirectory.setPath( url.directory() );
// Here we need to use O_EXCL to avoid race conditions with other tdeioslave processes
int fd = 0;
do {
kdDebug() << k_funcinfo << "trying to create " << url.path() << endl;
fd = ::open( TQFile::encodeName( url.path() ), O_WRONLY | O_CREAT | O_EXCL, 0600 );
if ( fd < 0 ) {
if ( errno == EEXIST ) {
url.setFileName( TDEIO::RenameDlg::suggestName( baseDirectory, url.fileName() ) );
// and try again on the next iteration
} else {
error( TDEIO::ERR_COULD_NOT_WRITE, url.path() );
return false;
}
}
} while ( fd < 0 );
const TQString infoPath = url.path();
fileId = url.fileName();
Q_ASSERT( fileId.endsWith( ".trashinfo" ) );
fileId.truncate( fileId.length() - 10 ); // remove .trashinfo from fileId
FILE* file = ::fdopen( fd, "w" );
if ( !file ) { // can't see how this would happen
error( TDEIO::ERR_COULD_NOT_WRITE, infoPath );
return false;
}
// Contents of the info file. We could use KSimpleConfig, but that would
// mean closing and reopening fd, i.e. opening a race condition...
TQCString info = "[Trash Info]\n";
info += "Path=";
// Escape filenames according to the way they are encoded on the filesystem
// All this to basically get back to the raw 8-bit representation of the filename...
if ( trashId == 0 ) // home trash: absolute path
info += KURL::encode_string( origPath, m_mibEnum ).latin1();
else
info += KURL::encode_string( makeRelativePath( topDirectoryPath( trashId ), origPath ), m_mibEnum ).latin1();
info += "\n";
info += "DeletionDate=";
info += TQDateTime::currentDateTime().toString( Qt::ISODate ).latin1();
info += "\n";
size_t sz = info.size() - 1; // avoid trailing 0 from QCString
size_t written = ::fwrite(info.data(), 1, sz, file);
if ( written != sz ) {
::fclose( file );
TQFile::remove( infoPath );
error( TDEIO::ERR_DISK_FULL, infoPath );
return false;
}
::fclose( file );
kdDebug() << k_funcinfo << "info file created in trashId=" << trashId << " : " << fileId << endl;
return true;
}
TQString TrashImpl::makeRelativePath( const TQString& topdir, const TQString& path )
{
const TQString realPath = TDEStandardDirs::realFilePath( path );
// topdir ends with '/'
if ( realPath.startsWith( topdir ) ) {
const TQString rel = realPath.mid( topdir.length() );
Q_ASSERT( rel[0] != '/' );
return rel;
} else { // shouldn't happen...
kdWarning() << "Couldn't make relative path for " << realPath << " (" << path << "), with topdir=" << topdir << endl;
return realPath;
}
}
TQString TrashImpl::infoPath( int trashId, const TQString& fileId ) const
{
TQString trashPath = trashDirectoryPath( trashId );
trashPath += "/info/";
trashPath += fileId;
trashPath += ".trashinfo";
return trashPath;
}
TQString TrashImpl::filesPath( int trashId, const TQString& fileId ) const
{
TQString trashPath = trashDirectoryPath( trashId );
trashPath += "/files/";
trashPath += fileId;
return trashPath;
}
bool TrashImpl::deleteInfo( int trashId, const TQString& fileId )
{
bool ok = TQFile::remove( infoPath( trashId, fileId ) );
if ( ok )
fileRemoved();
return ok;
}
bool TrashImpl::moveToTrash( const TQString& origPath, int trashId, const TQString& fileId )
{
kdDebug() << k_funcinfo << endl;
if ( !adaptTrashSize( origPath, trashId ) )
return false;
const TQString dest = filesPath( trashId, fileId );
if ( !move( origPath, dest ) ) {
// Maybe the move failed due to no permissions to delete source.
// In that case, delete dest to keep things consistent, since TDEIO doesn't do it.
if ( TQFileInfo( dest ).isFile() )
TQFile::remove( dest );
else
synchronousDel( dest, false, true );
return false;
}
fileAdded();
return true;
}
bool TrashImpl::moveFromTrash( const TQString& dest, int trashId, const TQString& fileId, const TQString& relativePath )
{
TQString src = filesPath( trashId, fileId );
if ( !relativePath.isEmpty() ) {
src += '/';
src += relativePath;
}
if ( !move( src, dest ) )
return false;
return true;
}
bool TrashImpl::move( const TQString& src, const TQString& dest )
{
if ( directRename( src, dest ) ) {
// This notification is done by TDEIO::moveAs when using the code below
// But if we do a direct rename we need to do the notification ourselves
KDirNotify_stub allDirNotify( "*", "KDirNotify*" );
KURL urlDest; urlDest.setPath( dest );
urlDest.setPath( urlDest.directory() );
allDirNotify.FilesAdded( urlDest );
return true;
}
if ( m_lastErrorCode != TDEIO::ERR_UNSUPPORTED_ACTION )
return false;
KURL urlSrc, urlDest;
urlSrc.setPath( src );
urlDest.setPath( dest );
kdDebug() << k_funcinfo << urlSrc << " -> " << urlDest << endl;
TDEIO::CopyJob* job = TDEIO::moveAs( urlSrc, urlDest, false );
#ifdef TDEIO_COPYJOB_HAS_SETINTERACTIVE
job->setInteractive( false );
#endif
connect( job, TQT_SIGNAL( result(TDEIO::Job *) ),
this, TQT_SLOT( jobFinished(TDEIO::Job *) ) );
tqApp->eventLoop()->enterLoop();
return m_lastErrorCode == 0;
}
void TrashImpl::jobFinished(TDEIO::Job* job)
{
kdDebug() << k_funcinfo << " error=" << job->error() << endl;
error( job->error(), job->errorText() );
tqApp->eventLoop()->exitLoop();
}
bool TrashImpl::copyToTrash( const TQString& origPath, int trashId, const TQString& fileId )
{
kdDebug() << k_funcinfo << endl;
if ( !adaptTrashSize( origPath, trashId ) )
return false;
const TQString dest = filesPath( trashId, fileId );
if ( !copy( origPath, dest ) )
return false;
fileAdded();
return true;
}
bool TrashImpl::copyFromTrash( const TQString& dest, int trashId, const TQString& fileId, const TQString& relativePath )
{
TQString src = filesPath( trashId, fileId );
if ( !relativePath.isEmpty() ) {
src += '/';
src += relativePath;
}
return copy( src, dest );
}
bool TrashImpl::copy( const TQString& src, const TQString& dest )
{
// tdeio_file's copy() method is quite complex (in order to be fast), let's just call it...
m_lastErrorCode = 0;
KURL urlSrc;
urlSrc.setPath( src );
KURL urlDest;
urlDest.setPath( dest );
kdDebug() << k_funcinfo << "copying " << src << " to " << dest << endl;
TDEIO::CopyJob* job = TDEIO::copyAs( urlSrc, urlDest, false );
#ifdef TDEIO_COPYJOB_HAS_SETINTERACTIVE
job->setInteractive( false );
#endif
connect( job, TQT_SIGNAL( result( TDEIO::Job* ) ),
this, TQT_SLOT( jobFinished( TDEIO::Job* ) ) );
tqApp->eventLoop()->enterLoop();
return m_lastErrorCode == 0;
}
bool TrashImpl::directRename( const TQString& src, const TQString& dest )
{
kdDebug() << k_funcinfo << src << " -> " << dest << endl;
if ( ::rename( TQFile::encodeName( src ), TQFile::encodeName( dest ) ) != 0 ) {
if (errno == EXDEV) {
error( TDEIO::ERR_UNSUPPORTED_ACTION, TQString::fromLatin1("rename") );
} else {
if (( errno == EACCES ) || (errno == EPERM)) {
error( TDEIO::ERR_ACCESS_DENIED, dest );
} else if (errno == EROFS) { // The file is on a read-only filesystem
error( TDEIO::ERR_CANNOT_DELETE, src );
} else {
error( TDEIO::ERR_CANNOT_RENAME, src );
}
}
return false;
}
return true;
}
#if 0
bool TrashImpl::mkdir( int trashId, const TQString& fileId, int permissions )
{
const TQString path = filesPath( trashId, fileId );
if ( ::mkdir( TQFile::encodeName( path ), permissions ) != 0 ) {
if ( errno == EACCES ) {
error( TDEIO::ERR_ACCESS_DENIED, path );
return false;
} else if ( errno == ENOSPC ) {
error( TDEIO::ERR_DISK_FULL, path );
return false;
} else {
error( TDEIO::ERR_COULD_NOT_MKDIR, path );
return false;
}
} else {
if ( permissions != -1 )
::chmod( TQFile::encodeName( path ), permissions );
}
return true;
}
#endif
bool TrashImpl::del( int trashId, const TQString& fileId )
{
TQString info = infoPath(trashId, fileId);
TQString file = filesPath(trashId, fileId);
TQCString info_c = TQFile::encodeName(info);
KDE_struct_stat buff;
if ( KDE_lstat( info_c.data(), &buff ) == -1 ) {
if ( errno == EACCES )
error( TDEIO::ERR_ACCESS_DENIED, file );
else
error( TDEIO::ERR_DOES_NOT_EXIST, file );
return false;
}
if ( !synchronousDel( file, true, TQFileInfo(file).isDir() ) )
return false;
TQFile::remove( info );
fileRemoved();
return true;
}
bool TrashImpl::synchronousDel( const TQString& path, bool setLastErrorCode, bool isDir )
{
const int oldErrorCode = m_lastErrorCode;
const TQString oldErrorMsg = m_lastErrorMessage;
KURL url;
url.setPath( path );
// First ensure that all dirs have u+w permissions,
// otherwise we won't be able to delete files in them (#130780).
if ( isDir ) {
kdDebug() << k_funcinfo << "chmod'ing " << url << endl;
KFileItem fileItem( url, "inode/directory", KFileItem::Unknown );
KFileItemList fileItemList;
fileItemList.append( &fileItem );
TDEIO::ChmodJob* chmodJob = TDEIO::chmod( fileItemList, 0200, 0200, TQString::null, TQString::null, true /*recursive*/, false /*showProgressInfo*/ );
connect( chmodJob, TQT_SIGNAL( result(TDEIO::Job *) ),
this, TQT_SLOT( jobFinished(TDEIO::Job *) ) );
tqApp->eventLoop()->enterLoop();
}
kdDebug() << k_funcinfo << "deleting " << url << endl;
TDEIO::DeleteJob *job = TDEIO::del( url, false, false );
connect( job, TQT_SIGNAL( result(TDEIO::Job *) ),
this, TQT_SLOT( jobFinished(TDEIO::Job *) ) );
tqApp->eventLoop()->enterLoop();
bool ok = m_lastErrorCode == 0;
if ( !setLastErrorCode ) {
m_lastErrorCode = oldErrorCode;
m_lastErrorMessage = oldErrorMsg;
}
return ok;
}
bool TrashImpl::emptyTrash()
{
kdDebug() << k_funcinfo << endl;
// The naive implementation "delete info and files in every trash directory"
// breaks when deleted directories contain files owned by other users.
// We need to ensure that the .trashinfo file is only removed when the
// corresponding files could indeed be removed.
const TrashedFileInfoList fileInfoList = list();
TrashedFileInfoList::const_iterator it = fileInfoList.begin();
const TrashedFileInfoList::const_iterator end = fileInfoList.end();
for ( ; it != end ; ++it ) {
const TrashedFileInfo& info = *it;
const TQString filesPath = info.physicalPath;
if ( synchronousDel( filesPath, true, true ) ) {
TQFile::remove( infoPath( info.trashId, info.fileId ) );
} // else error code is set
}
fileRemoved();
return m_lastErrorCode == 0;
}
TrashImpl::TrashedFileInfoList TrashImpl::list()
{
// Here we scan for trash directories unconditionally. This allows
// noticing plugged-in [e.g. removeable] devices, or new mounts etc.
scanTrashDirectories();
TrashedFileInfoList lst;
// For each known trash directory...
TrashDirMap::const_iterator it = m_trashDirectories.begin();
for ( ; it != m_trashDirectories.end() ; ++it ) {
const int trashId = it.key();
TQString infoPath = it.data();
infoPath += "/info";
// Code taken from tdeio_file
TQStrList entryNames = listDir( infoPath );
//char path_buffer[PATH_MAX];
//getcwd(path_buffer, PATH_MAX - 1);
//if ( chdir( infoPathEnc ) )
// continue;
TQStrListIterator entryIt( entryNames );
for (; entryIt.current(); ++entryIt) {
TQString fileName = TQFile::decodeName( *entryIt );
if ( fileName == "." || fileName == ".." )
continue;
if ( !fileName.endsWith( ".trashinfo" ) ) {
kdWarning() << "Invalid info file found in " << infoPath << " : " << fileName << endl;
continue;
}
fileName.truncate( fileName.length() - 10 );
TrashedFileInfo info;
if ( infoForFile( trashId, fileName, info ) )
lst << info;
}
}
return lst;
}
// Returns the entries in a given directory - including "." and ".."
TQStrList TrashImpl::listDir( const TQString& physicalPath )
{
const TQCString physicalPathEnc = TQFile::encodeName( physicalPath );
kdDebug() << k_funcinfo << "listing " << physicalPath << endl;
TQStrList entryNames;
DIR *dp = opendir( physicalPathEnc );
if ( dp == 0 )
return entryNames;
KDE_struct_dirent *ep;
while ( ( ep = KDE_readdir( dp ) ) != 0L )
entryNames.append( ep->d_name );
closedir( dp );
return entryNames;
}
bool TrashImpl::infoForFile( int trashId, const TQString& fileId, TrashedFileInfo& info )
{
kdDebug() << k_funcinfo << trashId << " " << fileId << endl;
info.trashId = trashId; // easy :)
info.fileId = fileId; // equally easy
info.physicalPath = filesPath( trashId, fileId );
return readInfoFile( infoPath( trashId, fileId ), info, trashId );
}
bool TrashImpl::readInfoFile( const TQString& infoPath, TrashedFileInfo& info, int trashId )
{
KSimpleConfig cfg( infoPath, true );
if ( !cfg.hasGroup( "Trash Info" ) ) {
error( TDEIO::ERR_CANNOT_OPEN_FOR_READING, infoPath );
return false;
}
cfg.setGroup( "Trash Info" );
info.origPath = KURL::decode_string( cfg.readEntry( "Path" ), m_mibEnum );
if ( info.origPath.isEmpty() )
return false; // path is mandatory...
if ( trashId == 0 )
Q_ASSERT( info.origPath[0] == '/' );
else {
const TQString topdir = topDirectoryPath( trashId ); // includes trailing slash
info.origPath.prepend( topdir );
}
TQString line = cfg.readEntry( "DeletionDate" );
if ( !line.isEmpty() ) {
info.deletionDate = TQT_TQDATETIME_OBJECT(TQDateTime::fromString( line, Qt::ISODate ));
}
return true;
}
TQString TrashImpl::physicalPath( int trashId, const TQString& fileId, const TQString& relativePath )
{
TQString filePath = filesPath( trashId, fileId );
if ( !relativePath.isEmpty() ) {
filePath += "/";
filePath += relativePath;
}
return filePath;
}
void TrashImpl::error( int e, const TQString& s )
{
if ( e )
kdDebug() << k_funcinfo << e << " " << s << endl;
m_lastErrorCode = e;
m_lastErrorMessage = s;
}
bool TrashImpl::isEmpty() const
{
// For each known trash directory...
if ( !m_trashDirectoriesScanned )
scanTrashDirectories();
TrashDirMap::const_iterator it = m_trashDirectories.begin();
for ( ; it != m_trashDirectories.end() ; ++it ) {
TQString infoPath = it.data();
infoPath += "/info";
DIR *dp = opendir( TQFile::encodeName( infoPath ) );
if ( dp )
{
struct dirent *ep;
ep = readdir( dp );
ep = readdir( dp ); // ignore '.' and '..' dirent
ep = readdir( dp ); // look for third file
closedir( dp );
if ( ep != 0 ) {
//kdDebug() << ep->d_name << " in " << infoPath << " -> not empty" << endl;
return false; // not empty
}
}
}
return true;
}
void TrashImpl::fileAdded()
{
m_config.setGroup( "Status" );
if ( m_config.readBoolEntry( "Empty", true ) == true ) {
m_config.writeEntry( "Empty", false );
m_config.sync();
}
// The apps showing the trash (e.g. kdesktop) will be notified
// of this change when KDirNotify::FilesAdded("trash:/") is emitted,
// which will be done by the job soon after this.
}
void TrashImpl::fileRemoved()
{
if ( isEmpty() ) {
m_config.setGroup( "Status" );
m_config.writeEntry( "Empty", true );
m_config.sync();
}
// The apps showing the trash (e.g. kdesktop) will be notified
// of this change when KDirNotify::FilesRemoved(...) is emitted,
// which will be done by the job soon after this.
}
int TrashImpl::findTrashDirectory( const TQString& origPath )
{
kdDebug() << k_funcinfo << origPath << endl;
// First check if same device as $HOME, then we use the home trash right away.
KDE_struct_stat buff;
if ( KDE_lstat( TQFile::encodeName( origPath ), &buff ) == 0
&& buff.st_dev == m_homeDevice )
return 0;
TQString mountPoint = TDEIO::findPathMountPoint( origPath );
const TQString trashDir = trashForMountPoint( mountPoint, true );
kdDebug() << "mountPoint=" << mountPoint << " trashDir=" << trashDir << endl;
if ( trashDir.isEmpty() )
return 0; // no trash available on partition
int id = idForTrashDirectory( trashDir );
if ( id > -1 ) {
kdDebug() << " known with id " << id << endl;
return id;
}
// new trash dir found, register it
// but we need stability in the trash IDs, so that restoring or asking
// for properties works even tdeio_trash gets killed because idle.
#if 0
kdDebug() << k_funcinfo << "found " << trashDir << endl;
m_trashDirectories.insert( ++m_lastId, trashDir );
if ( !mountPoint.endsWith( "/" ) )
mountPoint += '/';
m_topDirectories.insert( m_lastId, mountPoint );
return m_lastId;
#endif
scanTrashDirectories();
return idForTrashDirectory( trashDir );
}
void TrashImpl::scanTrashDirectories() const
{
const KMountPoint::List lst = KMountPoint::currentMountPoints();
for ( KMountPoint::List::ConstIterator it = lst.begin() ; it != lst.end() ; ++it ) {
const TQCString str = (*it)->mountType().latin1();
// Skip pseudo-filesystems, there's no chance we'll find a .Trash on them :)
// ## Maybe we should also skip readonly filesystems
if ( str != "proc" && str != "devfs" && str != "usbdevfs" &&
str != "sysfs" && str != "devpts" && str != "subfs" /* #96259 */ &&
str != "autofs" /* #101116 */ ) {
TQString topdir = (*it)->mountPoint();
TQString trashDir = trashForMountPoint( topdir, false );
if ( !trashDir.isEmpty() ) {
// OK, trashDir is a valid trash directory. Ensure it's registered.
int trashId = idForTrashDirectory( trashDir );
if ( trashId == -1 ) {
// new trash dir found, register it
m_trashDirectories.insert( ++m_lastId, trashDir );
kdDebug() << k_funcinfo << "found " << trashDir << " gave it id " << m_lastId << endl;
if ( !topdir.endsWith( "/" ) )
topdir += '/';
m_topDirectories.insert( m_lastId, topdir );
}
}
}
}
m_trashDirectoriesScanned = true;
}
TrashImpl::TrashDirMap TrashImpl::trashDirectories() const
{
if ( !m_trashDirectoriesScanned )
scanTrashDirectories();
return m_trashDirectories;
}
TrashImpl::TrashDirMap TrashImpl::topDirectories() const
{
if ( !m_trashDirectoriesScanned )
scanTrashDirectories();
return m_topDirectories;
}
TQString TrashImpl::trashForMountPoint( const TQString& topdir, bool createIfNeeded ) const
{
// (1) Administrator-created $topdir/.Trash directory
const TQString rootTrashDir = topdir + "/.Trash";
const TQCString rootTrashDir_c = TQFile::encodeName( rootTrashDir );
// Can't use TQFileInfo here since we need to test for the sticky bit
uid_t uid = getuid();
KDE_struct_stat buff;
const uint requiredBits = S_ISVTX; // Sticky bit required
if ( KDE_lstat( rootTrashDir_c, &buff ) == 0 ) {
if ( (S_ISDIR(buff.st_mode)) // must be a dir
&& (!S_ISLNK(buff.st_mode)) // not a symlink
&& ((buff.st_mode & requiredBits) == requiredBits)
&& (::access(rootTrashDir_c, W_OK))
) {
const TQString trashDir = rootTrashDir + "/" + TQString::number( uid );
const TQCString trashDir_c = TQFile::encodeName( trashDir );
if ( KDE_lstat( trashDir_c, &buff ) == 0 ) {
if ( (buff.st_uid == uid) // must be owned by user
&& (S_ISDIR(buff.st_mode)) // must be a dir
&& (!S_ISLNK(buff.st_mode)) // not a symlink
&& (buff.st_mode & 0777) == 0700 ) { // rwx for user
return trashDir;
}
kdDebug() << "Directory " << trashDir << " exists but didn't pass the security checks, can't use it" << endl;
}
else if ( createIfNeeded && initTrashDirectory( trashDir_c ) ) {
return trashDir;
}
} else {
kdDebug() << "Root trash dir " << rootTrashDir << " exists but didn't pass the security checks, can't use it" << endl;
}
}
// (2) $topdir/.Trash-$uid
const TQString trashDir = topdir + "/.Trash-" + TQString::number( uid );
const TQCString trashDir_c = TQFile::encodeName( trashDir );
if ( KDE_lstat( trashDir_c, &buff ) == 0 )
{
if ( (buff.st_uid == uid) // must be owned by user
&& (S_ISDIR(buff.st_mode)) // must be a dir
&& (!S_ISLNK(buff.st_mode)) // not a symlink
&& ((buff.st_mode & 0777) == 0700) ) { // rwx for user, ------ for group and others
if ( checkTrashSubdirs( trashDir_c ) )
return trashDir;
}
kdDebug() << "Directory " << trashDir << " exists but didn't pass the security checks, can't use it" << endl;
// Exists, but not useable
return TQString::null;
}
if ( createIfNeeded && initTrashDirectory( trashDir_c ) ) {
return trashDir;
}
return TQString::null;
}
int TrashImpl::idForTrashDirectory( const TQString& trashDir ) const
{
// If this is too slow we can always use a reverse map...
TrashDirMap::ConstIterator it = m_trashDirectories.begin();
for ( ; it != m_trashDirectories.end() ; ++it ) {
if ( it.data() == trashDir ) {
return it.key();
}
}
return -1;
}
bool TrashImpl::initTrashDirectory( const TQCString& trashDir_c ) const
{
if ( ::mkdir( trashDir_c, 0700 ) != 0 )
return false;
// This trash dir will be useable only if the directory is owned by user.
// In theory this is the case, but not on e.g. USB keys...
uid_t uid = getuid();
KDE_struct_stat buff;
if ( KDE_lstat( trashDir_c, &buff ) != 0 )
return false; // huh?
if ( (buff.st_uid == uid) // must be owned by user
&& ((buff.st_mode & 0777) == 0700) ) { // rwx for user, --- for group and others
return checkTrashSubdirs( trashDir_c );
} else {
kdDebug() << trashDir_c << " just created, by it doesn't have the right permissions, must be a FAT partition. Removing it again." << endl;
// Not good, e.g. USB key. Delete again.
// I'm paranoid, it would be better to find a solution that allows
// to trash directly onto the USB key, but I don't see how that would
// pass the security checks. It would also make the USB key appears as
// empty when it's in fact full...
::rmdir( trashDir_c );
return false;
}
return true;
}
bool TrashImpl::checkTrashSubdirs( const TQCString& trashDir_c ) const
{
// testDir currently works with a TQString - ## optimize
TQString trashDir = TQFile::decodeName( trashDir_c );
const TQString info = trashDir + "/info";
if ( testDir( info ) != 0 )
return false;
const TQString files = trashDir + "/files";
if ( testDir( files ) != 0 )
return false;
return true;
}
TQString TrashImpl::trashDirectoryPath( int trashId ) const
{
// Never scanned for trash dirs? (This can happen after killing tdeio_trash
// and reusing a directory listing from the earlier instance.)
if ( !m_trashDirectoriesScanned )
scanTrashDirectories();
Q_ASSERT( m_trashDirectories.contains( trashId ) );
return m_trashDirectories[trashId];
}
TQString TrashImpl::topDirectoryPath( int trashId ) const
{
if ( !m_trashDirectoriesScanned )
scanTrashDirectories();
assert( trashId != 0 );
Q_ASSERT( m_topDirectories.contains( trashId ) );
return m_topDirectories[trashId];
}
// Helper method. Creates a URL with the format trash:/trashid-fileid or
// trash:/trashid-fileid/relativePath/To/File for a file inside a trashed directory.
KURL TrashImpl::makeURL( int trashId, const TQString& fileId, const TQString& relativePath )
{
KURL url;
url.setProtocol( "trash" );
TQString path = "/";
path += TQString::number( trashId );
path += '-';
path += fileId;
if ( !relativePath.isEmpty() ) {
path += '/';
path += relativePath;
}
url.setPath( path );
return url;
}
// Helper method. Parses a trash URL with the URL scheme defined in makeURL.
// The trash:/ URL itself isn't parsed here, must be caught by the caller before hand.
bool TrashImpl::parseURL( const KURL& url, int& trashId, TQString& fileId, TQString& relativePath )
{
if ( url.protocol() != "trash" )
return false;
const TQString path = url.path();
int start = 0;
if ( path[0] == '/' ) // always true I hope
start = 1;
int slashPos = path.find( '-', 0 ); // don't match leading slash
if ( slashPos <= 0 )
return false;
bool ok = false;
trashId = path.mid( start, slashPos - start ).toInt( &ok );
Q_ASSERT( ok );
if ( !ok )
return false;
start = slashPos + 1;
slashPos = path.find( '/', start );
if ( slashPos <= 0 ) {
fileId = path.mid( start );
relativePath = TQString::null;
return true;
}
fileId = path.mid( start, slashPos - start );
relativePath = path.mid( slashPos + 1 );
return true;
}
bool TrashImpl::adaptTrashSize( const TQString& origPath, int trashId )
{
TDEConfig config( "trashrc" );
const TQString trashPath = trashDirectoryPath( trashId );
config.setGroup( trashPath );
bool useTimeLimit = config.readBoolEntry( "UseTimeLimit", false );
bool useSizeLimit = config.readBoolEntry( "UseSizeLimit", true );
double percent = config.readDoubleNumEntry( "Percent", 10 );
int actionType = config.readNumEntry( "LimitReachedAction", 0 );
if ( useTimeLimit ) { // delete all files in trash older than X days
const int maxDays = config.readNumEntry( "Days", 7 );
const TQDateTime currentDate = TQDateTime::currentDateTime();
const TrashedFileInfoList trashedFiles = list();
for ( uint i = 0; i < trashedFiles.count(); ++i ) {
struct TrashedFileInfo info = trashedFiles[ i ];
if ( info.trashId != trashId )
continue;
if ( info.deletionDate.daysTo( currentDate ) > maxDays )
del( info.trashId, info.fileId );
}
return true;
}
if ( useSizeLimit ) { // check if size limit exceeded
// calculate size of the files to be put into the trash
unsigned long additionalSize = DiscSpaceUtil::sizeOfPath( origPath );
DiscSpaceUtil util( trashPath + "/files/" );
if ( util.usage( additionalSize ) >= percent ) {
if ( actionType == 0 ) { // warn the user only
m_lastErrorCode = TDEIO::ERR_SLAVE_DEFINED;
m_lastErrorMessage = i18n( "The trash has reached its maximum size!\nClean the trash manually." );
return false;
} else {
// before we start to remove any files from the trash,
// check whether the new file will fit into the trash
// at all...
unsigned long partitionSize = util.size(); // in kB
unsigned long fileSize = additionalSize/1024; // convert to kB
if ( ((double)fileSize*100/(double)partitionSize) >= percent ) {
m_lastErrorCode = TDEIO::ERR_SLAVE_DEFINED;
m_lastErrorMessage = i18n( "The file is too large to be trashed." );
return false;
}
// the size of the to be trashed file is ok, so lets start removing
// some other files from the trash
TQDir dir( trashPath + "/files" );
const TQFileInfoList *infos = 0;
if ( actionType == 1 ) // delete oldest files first
infos = dir.entryInfoList( TQDir::Files | TQDir::Dirs, TQDir::Time | TQDir::Reversed );
else if ( actionType == 2 ) // delete biggest files first
infos = dir.entryInfoList( TQDir::Files | TQDir::Dirs, TQDir::Size );
else
tqWarning( "Should never happen!" );
TQFileInfoListIterator it( *infos );
TQFileInfo *info;
bool deleteFurther = true;
while ( ((info = it.current()) != 0) && deleteFurther ) {
if ( info->fileName() != "." && info->fileName() != ".." ) {
del( trashId, info->fileName() ); // delete trashed file
if ( util.usage( additionalSize ) < percent ) // check whether we have enough space now
deleteFurther = false;
}
++it;
}
}
}
}
return true;
}
#include "trashimpl.moc"
|