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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sot/storinfo.hxx>
#include <sot/exchange.hxx>
#include <osl/file.hxx>
#include <unotools/tempfile.hxx>
#include <tools/stream.hxx>
#include <tools/debug.hxx>
#include "sot/stg.hxx"
#include "stgelem.hxx"
#include "stgcache.hxx"
#include "stgstrms.hxx"
#include "stgdir.hxx"
#include "stgio.hxx"
#include "stgole.hxx"
static long nTmpCount = 0;
// The internal open mode is StreamMode::READ | StreamMode::TRUNC, which is silly
// by itself. It inhibits the checking of sharing modes and is used
// during CopyTo() and MoveTo() for opening a stream in read mode
// although it may be open in DENYALL mode
#define INTERNAL_MODE ( StreamMode::READ | StreamMode::TRUNC )
///////////////////////// class StorageBase
StorageBase::StorageBase()
: m_bAutoCommit( false )
{
m_nMode = StreamMode::READ;
m_nError = SVSTREAM_OK;
}
StorageBase::~StorageBase()
{
}
// The following three methods are declared as const, since they
// may be called from within a const method.
ErrCode StorageBase::GetError() const
{
const ErrCode n = m_nError;
m_nError = SVSTREAM_OK;
return n;
}
void StorageBase::SetError( ErrCode n ) const
{
if( !m_nError )
m_nError = n;
}
void StorageBase::ResetError() const
{
m_nError = SVSTREAM_OK;
}
OLEStorageBase::OLEStorageBase( StgIo* p, StgDirEntry* pe, StreamMode& nMode )
: nStreamMode( nMode ), pIo( p ), pEntry( pe )
{
if ( p )
p->IncRef();
if( pe )
pe->m_nRefCnt++;
}
OLEStorageBase::~OLEStorageBase()
{
if( pEntry )
{
DBG_ASSERT( pEntry->m_nRefCnt, "RefCount unter 0" );
if( !--pEntry->m_nRefCnt )
{
if( pEntry->m_bZombie )
delete pEntry;
else
pEntry->Close();
}
pEntry = nullptr;
}
if( pIo && !pIo->DecRef() )
{
delete pIo;
pIo = nullptr;
}
}
// Validate the instance for I/O
bool OLEStorageBase::Validate_Impl( bool bWrite ) const
{
if( pIo
&& pIo->m_pTOC
&& pEntry
&& !pEntry->m_bInvalid
&& ( !bWrite || !pEntry->m_bDirect || ( nStreamMode & StreamMode::WRITE ) ) )
return true;
return false;
}
bool OLEStorageBase::ValidateMode_Impl( StreamMode m, StgDirEntry* p )
{
if( m == INTERNAL_MODE )
return true;
StreamMode nCurMode = ( p && p->m_nRefCnt ) ? p->m_nMode : StreamMode::SHARE_DENYALL;
if( ( m & STREAM_READWRITE ) == StreamMode::READ )
{
// only SHARE_DENYWRITE or SHARE_DENYALL allowed
if( ( ( m & StreamMode::SHARE_DENYWRITE )
&& ( nCurMode & StreamMode::SHARE_DENYWRITE ) )
|| ( ( m & StreamMode::SHARE_DENYALL )
&& ( nCurMode & StreamMode::SHARE_DENYALL ) ) )
return true;
}
else
{
// only SHARE_DENYALL allowed
// storages open in r/o mode are OK, since only
// the commit may fail
if( ( m & StreamMode::SHARE_DENYALL )
&& ( nCurMode & StreamMode::SHARE_DENYALL ) )
return true;
}
return false;
}
//////////////////////// class StorageStream
StorageStream::StorageStream( StgIo* p, StgDirEntry* q, StreamMode m )
: OLEStorageBase( p, q, m_nMode ), nPos( 0L )
{
// The dir entry may be 0; this means that the stream is invalid.
if( q && p )
{
if( q->m_nRefCnt == 1 )
{
q->m_nMode = m;
q->OpenStream( *p );
}
}
else
m &= ~StreamMode(STREAM_READWRITE);
m_nMode = m;
}
StorageStream::~StorageStream()
{
// Do an auto-commit if the entry is open in direct mode
if( m_bAutoCommit )
Commit();
if( pEntry && pEntry->m_nRefCnt && pEntry->m_bDirect && (m_nMode & StreamMode::WRITE) )
pEntry->Commit();
}
bool StorageStream::Equals( const BaseStorageStream& rStream ) const
{
const StorageStream* pOther = dynamic_cast<const StorageStream*>( &rStream );
return pOther && ( pOther->pEntry == pEntry );
}
sal_uLong StorageStream::Read( void* pData, sal_uLong nSize )
{
if( Validate() )
{
pEntry->Seek( nPos );
nSize = pEntry->Read( pData, (sal_Int32) nSize );
pIo->MoveError( *this );
nPos += nSize;
}
else
nSize = 0L;
return nSize;
}
sal_uLong StorageStream::Write( const void* pData, sal_uLong nSize )
{
if( Validate( true ) )
{
pEntry->Seek( nPos );
nSize = pEntry->Write( pData, (sal_Int32) nSize );
pIo->MoveError( *this );
nPos += nSize;
}
else
nSize = 0L;
return nSize;
}
sal_uInt64 StorageStream::Seek( sal_uInt64 n )
{
if( Validate() )
return nPos = pEntry->Seek( n );
else
return n;
}
void StorageStream::Flush()
{
// Flushing means committing, since streams are never transacted
Commit();
}
bool StorageStream::SetSize( sal_uLong nNewSize )
{
if( Validate( true ) )
{
bool b = pEntry->SetSize( (sal_Int32) nNewSize );
pIo->MoveError( *this );
return b;
}
else
return false;
}
sal_uLong StorageStream::GetSize() const
{
if( Validate() )
return pEntry->GetSize();
return 0;
}
bool StorageStream::Commit()
{
if( !Validate() )
return false;
if( !( m_nMode & StreamMode::WRITE ) )
{
SetError( SVSTREAM_ACCESS_DENIED );
return false;
}
else
{
pEntry->Commit();
pIo->MoveError( *this );
return Good();
}
}
void StorageStream::CopyTo( BaseStorageStream* pDest )
{
if( !Validate() || !pDest || !pDest->Validate( true ) || Equals( *pDest ) )
return;
pEntry->Copy( *pDest );
pDest->Commit();
pIo->MoveError( *this );
SetError( pDest->GetError() );
}
bool StorageStream::Validate( bool bValidate ) const
{
bool bRet = Validate_Impl( bValidate );
if ( !bRet )
SetError( SVSTREAM_ACCESS_DENIED );
return bRet;
}
bool StorageStream::ValidateMode( StreamMode nMode ) const
{
bool bRet = ValidateMode_Impl( nMode );
if ( !bRet )
SetError( SVSTREAM_ACCESS_DENIED );
return bRet;
}
///////////////////////// class SvStorageInfo
SvStorageInfo::SvStorageInfo( const StgDirEntry& rE )
{
rE.m_aEntry.GetName( aName );
bStorage = rE.m_aEntry.GetType() == STG_STORAGE;
bStream = rE.m_aEntry.GetType() == STG_STREAM;
nSize = bStorage ? 0 : rE.m_aEntry.GetSize();
}
/////////////////////////// class Storage
bool Storage::IsStorageFile( const OUString & rFileName )
{
StgIo aIo;
if( aIo.Open( rFileName, STREAM_STD_READ ) )
return aIo.Load();
return false;
}
bool Storage::IsStorageFile( SvStream* pStream )
{
bool bRet = false;
if ( pStream )
{
StgHeader aHdr;
sal_uLong nPos = pStream->Tell();
bRet = ( aHdr.Load( *pStream ) && aHdr.Check() );
// It's not a stream error if it is too small for a OLE storage header
if ( pStream->GetErrorCode() == ERRCODE_IO_CANTSEEK )
pStream->ResetError();
pStream->Seek( nPos );
}
return bRet;
}
// Open the storage file. If writing is permitted and the file is not
// a storage file, initialize it.
Storage::Storage( const OUString& rFile, StreamMode m, bool bDirect )
: OLEStorageBase( new StgIo, nullptr, m_nMode )
, aName( rFile ), bIsRoot( false )
{
bool bTemp = false;
if( aName.isEmpty() )
{
// no name = temporary name!
aName = utl::TempFile::CreateTempName();
bTemp = true;
}
// the root storage creates the I/O system
m_nMode = m;
if( pIo->Open( aName, m ) )
{
Init( ( m & ( StreamMode::TRUNC | StreamMode::NOCREATE ) ) == StreamMode::TRUNC );
if( pEntry )
{
pEntry->m_bDirect = bDirect;
pEntry->m_nMode = m;
pEntry->m_bTemp = bTemp;
}
}
else
{
pIo->MoveError( *this );
pEntry = nullptr;
}
}
// Create a storage on a given stream.
Storage::Storage( SvStream& r, bool bDirect )
: OLEStorageBase( new StgIo, nullptr, m_nMode )
, bIsRoot( false )
{
m_nMode = StreamMode::READ;
if( r.IsWritable() )
m_nMode = StreamMode::READ | StreamMode::WRITE;
if( r.GetError() == SVSTREAM_OK )
{
pIo->SetStrm( &r, false );
sal_uLong nSize = r.Seek( STREAM_SEEK_TO_END );
r.Seek( 0L );
// Initializing is OK if the stream is empty
Init( nSize == 0 );
if( pEntry )
{
pEntry->m_bDirect = bDirect;
pEntry->m_nMode = m_nMode;
}
pIo->MoveError( *this );
}
else
{
SetError( r.GetError() );
pEntry = nullptr;
}
}
Storage::Storage( UCBStorageStream& rStrm, bool bDirect )
: OLEStorageBase( new StgIo, nullptr, m_nMode ), bIsRoot( false )
{
m_nMode = StreamMode::READ;
if ( rStrm.GetError() != SVSTREAM_OK )
{
SetError( rStrm.GetError() );
pEntry = nullptr;
return;
}
SvStream* pStream = rStrm.GetModifySvStream();
if ( !pStream )
{
OSL_FAIL( "UCBStorageStream can not provide SvStream implementation!\n" );
SetError( SVSTREAM_GENERALERROR );
pEntry = nullptr;
return;
}
if( pStream->IsWritable() )
m_nMode = StreamMode::READ | StreamMode::WRITE;
pIo->SetStrm( &rStrm );
sal_uLong nSize = pStream->Seek( STREAM_SEEK_TO_END );
pStream->Seek( 0L );
// Initializing is OK if the stream is empty
Init( nSize == 0 );
if( pEntry )
{
pEntry->m_bDirect = bDirect;
pEntry->m_nMode = m_nMode;
}
pIo->MoveError( *this );
}
// Perform common code for both ctors above.
void Storage::Init( bool bCreate )
{
pEntry = nullptr;
bool bHdrLoaded = false;
bIsRoot = true;
OSL_ENSURE( pIo, "The pointer may not be empty at this point!" );
if( pIo->Good() && pIo->GetStrm() )
{
sal_uLong nSize = pIo->GetStrm()->Seek( STREAM_SEEK_TO_END );
pIo->GetStrm()->Seek( 0L );
if( nSize )
{
bHdrLoaded = pIo->Load();
if( !bHdrLoaded && !bCreate )
{
// File is not a storage and not empty; do not destroy!
SetError( SVSTREAM_FILEFORMAT_ERROR );
return;
}
}
}
// file is a storage, empty or should be overwritten
pIo->ResetError();
// we have to set up the data structures, since
// the file is empty
if( !bHdrLoaded )
pIo->Init();
if( pIo->Good() && pIo->m_pTOC )
{
pEntry = pIo->m_pTOC->GetRoot();
pEntry->m_nRefCnt++;
}
}
// Internal ctor
Storage::Storage( StgIo* p, StgDirEntry* q, StreamMode m )
: OLEStorageBase( p, q, m_nMode ), bIsRoot( false )
{
if( q )
q->m_aEntry.GetName( aName );
else
m &= ~StreamMode(STREAM_READWRITE);
m_nMode = m;
if( q && q->m_nRefCnt == 1 )
q->m_nMode = m;
}
Storage::~Storage()
{
// Invalidate all open substorages
if( m_bAutoCommit )
Commit();
if( pEntry )
{
// Do an auto-commit if the entry is open in direct mode
if( pEntry->m_nRefCnt && pEntry->m_bDirect && (m_nMode & StreamMode::WRITE) )
Commit();
if( pEntry->m_nRefCnt == 1 )
pEntry->Invalidate(false);
}
// close the stream is root storage
if( bIsRoot )
pIo->Close();
// remove the file if temporary root storage
if( bIsRoot && pEntry && pEntry->m_bTemp )
{
osl::File::remove( GetName() );
}
}
const OUString& Storage::GetName() const
{
if( !bIsRoot && Validate() )
pEntry->m_aEntry.GetName( const_cast<Storage*>(this)->aName );
return aName;
}
// Fill in the info list for this storage
void Storage::FillInfoList( SvStorageInfoList* pList ) const
{
if( Validate() && pList )
{
StgIterator aIter( *pEntry );
StgDirEntry* p = aIter.First();
while( p )
{
if( !p->m_bInvalid )
{
SvStorageInfo aInfo( *p );
pList->push_back( aInfo );
}
p = aIter.Next();
}
}
}
// Open or create a substorage
BaseStorage* Storage::OpenUCBStorage( const OUString& rName, StreamMode m, bool bDirect )
{
OSL_FAIL("Not supported!");
return OpenStorage( rName, m, bDirect );
}
BaseStorage* Storage::OpenOLEStorage( const OUString& rName, StreamMode m, bool bDirect )
{
return OpenStorage( rName, m, bDirect );
}
BaseStorage* Storage::OpenStorage( const OUString& rName, StreamMode m, bool bDirect )
{
if( !Validate() || !ValidateMode( m ) )
return new Storage( pIo, nullptr, m );
if( bDirect && !pEntry->m_bDirect )
bDirect = false;
StgDirEntry* p = pIo->m_pTOC->Find( *pEntry, rName );
if( !p )
{
if( !( m & StreamMode::NOCREATE ) )
{
bool bTemp = false;
// create a new storage
OUString aNewName = rName;
if( aNewName.isEmpty() )
{
aNewName = "Temp Stg " + OUString::number( ++nTmpCount );
bTemp = true;
}
p = pIo->m_pTOC->Create( *pEntry, aNewName, STG_STORAGE );
if( p )
p->m_bTemp = bTemp;
}
if( !p )
pIo->SetError( ( m & StreamMode::WRITE )
? SVSTREAM_CANNOT_MAKE : SVSTREAM_FILE_NOT_FOUND );
}
else if( !ValidateMode( m, p ) )
p = nullptr;
if( p && p->m_aEntry.GetType() != STG_STORAGE )
{
pIo->SetError( SVSTREAM_FILE_NOT_FOUND );
p = nullptr;
}
// Either direct or transacted mode is supported
if( p && pEntry->m_nRefCnt == 1 )
p->m_bDirect = bDirect;
// Don't check direct conflict if opening readonly
if( p && (m & StreamMode::WRITE ))
{
if( p->m_bDirect != bDirect )
SetError( SVSTREAM_ACCESS_DENIED );
}
Storage* pStg = new Storage( pIo, p, m );
pIo->MoveError( *pStg );
if( m & StreamMode::WRITE ) pStg->m_bAutoCommit = true;
return pStg;
}
// Open a stream
BaseStorageStream* Storage::OpenStream( const OUString& rName, StreamMode m, bool,
const OString* pB )
{
DBG_ASSERT(!pB, "Encryption not supported");
if( !Validate() || !ValidateMode( m ) )
return new StorageStream( pIo, nullptr, m );
StgDirEntry* p = pIo->m_pTOC->Find( *pEntry, rName );
bool bTemp = false;
if( !p )
{
if( !( m & StreamMode::NOCREATE ) )
{
// create a new stream
// make a name if the stream is temporary (has no name)
OUString aNewName( rName );
if( aNewName.isEmpty() )
{
aNewName = "Temp Strm " + OUString::number( ++nTmpCount );
bTemp = true;
}
p = pIo->m_pTOC->Create( *pEntry, aNewName, STG_STREAM );
}
if( !p )
pIo->SetError( ( m & StreamMode::WRITE )
? SVSTREAM_CANNOT_MAKE : SVSTREAM_FILE_NOT_FOUND );
}
else if( !ValidateMode( m, p ) )
p = nullptr;
if( p && p->m_aEntry.GetType() != STG_STREAM )
{
pIo->SetError( SVSTREAM_FILE_NOT_FOUND );
p = nullptr;
}
if( p )
{
p->m_bTemp = bTemp;
p->m_bDirect = pEntry->m_bDirect;
}
StorageStream* pStm = new StorageStream( pIo, p, m );
if( p && !p->m_bDirect )
pStm->SetAutoCommit( true );
pIo->MoveError( *pStm );
return pStm;
}
// Delete a stream or substorage by setting the temp bit.
void Storage::Remove( const OUString& rName )
{
if( !Validate( true ) )
return;
StgDirEntry* p = pIo->m_pTOC->Find( *pEntry, rName );
if( p )
{
p->Invalidate( true );
}
else
{
SetError( SVSTREAM_FILE_NOT_FOUND );
}
}
// Copy one element
bool Storage::CopyTo( const OUString& rElem, BaseStorage* pDest, const OUString& rNew )
{
if( !Validate() || !pDest || !pDest->Validate( true ) )
return false;
StgDirEntry* pElem = pIo->m_pTOC->Find( *pEntry, rElem );
if( pElem )
{
if( pElem->m_aEntry.GetType() == STG_STORAGE )
{
// copy the entire storage
BaseStorage* p1 = OpenStorage( rElem, INTERNAL_MODE );
BaseStorage* p2 = pDest->OpenOLEStorage( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
if ( p2 )
{
ErrCode nTmpErr = p2->GetError();
if( !nTmpErr )
{
p2->SetClassId( p1->GetClassId() );
p1->CopyTo( p2 );
SetError( p1->GetError() );
nTmpErr = p2->GetError();
if( !nTmpErr )
p2->Commit();
else
pDest->SetError( nTmpErr );
}
else
pDest->SetError( nTmpErr );
}
delete p1;
delete p2;
return Good() && pDest->Good();
}
else
{
// stream copy
BaseStorageStream* p1 = OpenStream( rElem, INTERNAL_MODE );
BaseStorageStream* p2 = pDest->OpenStream( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
if ( p2 )
{
ErrCode nTmpErr = p2->GetError();
if( !nTmpErr )
{
p1->CopyTo( p2 );
SetError( p1->GetError() );
nTmpErr = p2->GetError();
if( !nTmpErr )
p2->Commit();
else
pDest->SetError( nTmpErr );
}
else
pDest->SetError( nTmpErr );
}
delete p1;
delete p2;
return Good() && pDest->Good();
}
}
SetError( SVSTREAM_FILE_NOT_FOUND );
return false;
}
bool Storage::CopyTo( BaseStorage* pDest ) const
{
if( !Validate() || !pDest || !pDest->Validate( true ) || Equals( *pDest ) )
{
SetError( SVSTREAM_ACCESS_DENIED );
return false;
}
Storage* pThis = const_cast<Storage*>(this);
pDest->SetClassId( GetClassId() );
pDest->SetDirty();
SvStorageInfoList aList;
FillInfoList( &aList );
bool bRes = true;
for( size_t i = 0; i < aList.size() && bRes; i++ )
{
SvStorageInfo& rInfo = aList[ i ];
bRes = pThis->CopyTo( rInfo.GetName(), pDest, rInfo.GetName() );
}
if( !bRes )
SetError( pDest->GetError() );
return Good() && pDest->Good();
}
bool Storage::IsStorage( const OUString& rName ) const
{
if( Validate() )
{
StgDirEntry* p = pIo->m_pTOC->Find( *pEntry, rName );
if( p )
return p->m_aEntry.GetType() == STG_STORAGE;
}
return false;
}
bool Storage::IsStream( const OUString& rName ) const
{
if( Validate() )
{
StgDirEntry* p = pIo->m_pTOC->Find( *pEntry, rName );
if( p )
return p->m_aEntry.GetType() == STG_STREAM;
}
return false;
}
bool Storage::IsContained( const OUString& rName ) const
{
if( Validate() )
return pIo->m_pTOC->Find( *pEntry, rName ) != nullptr;
else
return false;
}
// Commit all sub-elements within this storage. If this is
// the root, commit the FAT, the TOC and the header as well.
bool Storage::Commit()
{
bool bRes = true;
if( !Validate() )
return false;
if( !( m_nMode & StreamMode::WRITE ) )
{
SetError( SVSTREAM_ACCESS_DENIED );
return false;
}
else
{
// Also commit the sub-streams and Storages
StgIterator aIter( *pEntry );
for( StgDirEntry* p = aIter.First(); p && bRes; p = aIter.Next() )
bRes = p->Commit();
if( bRes && bIsRoot )
{
bRes = pEntry->Commit();
if( bRes )
bRes = pIo->CommitAll();
}
pIo->MoveError( *this );
}
return bRes;
}
bool Storage::Revert()
{
return true;
}
///////////////////////////// OLE Support
// Set the storage type
void Storage::SetClass( const SvGlobalName & rClass,
SotClipboardFormatId nOriginalClipFormat,
const OUString & rUserTypeName )
{
if( Validate( true ) )
{
// set the class name in the root entry
pEntry->m_aEntry.SetClassId( (const ClsId&) rClass.GetCLSID() );
pEntry->SetDirty();
// then create the streams
StgCompObjStream aCompObj( *this, true );
aCompObj.GetClsId() = (const ClsId&) rClass.GetCLSID();
aCompObj.GetCbFormat() = nOriginalClipFormat;
aCompObj.GetUserName() = rUserTypeName;
if( !aCompObj.Store() )
SetError( aCompObj.GetError() );
else
{
StgOleStream aOle(*this, true);
if( !aOle.Store() )
SetError( aOle.GetError() );
}
}
else
SetError( SVSTREAM_ACCESS_DENIED );
}
SvGlobalName Storage::GetClassName()
{
StgCompObjStream aCompObj( *this, false );
if( aCompObj.Load() )
return SvGlobalName( aCompObj.GetClsId() );
pIo->ResetError();
if ( pEntry )
return SvGlobalName( pEntry->m_aEntry.GetClassId() );
return SvGlobalName();
}
SotClipboardFormatId Storage::GetFormat()
{
StgCompObjStream aCompObj( *this, false );
if( aCompObj.Load() )
return aCompObj.GetCbFormat();
pIo->ResetError();
return SotClipboardFormatId::NONE;
}
OUString Storage::GetUserName()
{
StgCompObjStream aCompObj( *this, false );
if( aCompObj.Load() )
return aCompObj.GetUserName();
pIo->ResetError();
return OUString();
}
bool Storage::ValidateFAT()
{
Link<StgLinkArg&,void> aLink = StgIo::GetErrorLink();
ErrCode nErr = pIo->ValidateFATs();
StgIo::SetErrorLink( aLink );
return nErr == ERRCODE_NONE;
}
void Storage::SetDirty()
{
if ( pEntry )
pEntry->SetDirty();
}
void Storage::SetClassId( const ClsId& rId )
{
if ( pEntry )
pEntry->m_aEntry.SetClassId( rId );
}
const ClsId& Storage::GetClassId() const
{
if ( pEntry )
return pEntry->m_aEntry.GetClassId();
static ClsId aDummyId = {0,0,0,{0,0,0,0,0,0,0,0}};
return aDummyId;
}
bool Storage::Validate( bool bValidate ) const
{
bool bRet = Validate_Impl( bValidate );
if ( !bRet )
SetError( SVSTREAM_ACCESS_DENIED );
return bRet;
}
bool Storage::ValidateMode( StreamMode nMode ) const
{
bool bRet = ValidateMode_Impl( nMode );
if ( !bRet )
SetError( SVSTREAM_ACCESS_DENIED );
return bRet;
}
bool Storage::ValidateMode( StreamMode nMode, StgDirEntry* p ) const
{
bool bRet = ValidateMode_Impl( nMode, p );
if ( !bRet )
SetError( SVSTREAM_ACCESS_DENIED );
return bRet;
}
bool Storage::Equals( const BaseStorage& rStorage ) const
{
const Storage* pOther = dynamic_cast<const Storage*>( &rStorage );
return pOther && ( pOther->pEntry == pEntry );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|