summaryrefslogtreecommitdiff
path: root/package/source/zippackage/ZipPackageStream.cxx
blob: f99fbda5bbc3bbf5177a1ae15b2e3d4a7f443285 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
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
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
/* -*- 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 <ZipPackageStream.hxx>

#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/packages/zip/ZipConstants.hpp>
#include <com/sun/star/embed/StorageFormats.hpp>
#include <com/sun/star/packages/zip/ZipIOException.hpp>
#include <com/sun/star/io/TempFile.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/xml/crypto/DigestID.hpp>
#include <com/sun/star/xml/crypto/CipherID.hpp>

#include <string.h>

#include <CRC32.hxx>
#include <ZipOutputEntry.hxx>
#include <ZipOutputStream.hxx>
#include <ZipPackage.hxx>
#include <ZipPackageFolder.hxx>
#include <ZipFile.hxx>
#include <EncryptedDataHeader.hxx>
#include <osl/diagnose.h>
#include "wrapstreamforshare.hxx"

#include <comphelper/processfactory.hxx>
#include <comphelper/seekableinput.hxx>
#include <comphelper/storagehelper.hxx>
#include <cppuhelper/exc_hlp.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/typeprovider.hxx>

#include <rtl/instance.hxx>
#include <rtl/random.h>

#include <PackageConstants.hxx>

using namespace com::sun::star::packages::zip::ZipConstants;
using namespace com::sun::star::packages::zip;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star;
using namespace cppu;

#if OSL_DEBUG_LEVEL > 0
#define THROW_WHERE SAL_WHERE
#else
#define THROW_WHERE ""
#endif

namespace { struct lcl_CachedImplId : public rtl::Static< cppu::OImplementationId, lcl_CachedImplId > {}; }

css::uno::Sequence < sal_Int8 > ZipPackageStream::static_getImplementationId()
{
    return lcl_CachedImplId::get().getImplementationId();
}

ZipPackageStream::ZipPackageStream ( ZipPackage & rNewPackage,
                                    const uno::Reference< XComponentContext >& xContext,
                                    sal_Int32 nFormat,
                                    bool bAllowRemoveOnInsert )
: m_rZipPackage( rNewPackage )
, m_bToBeCompressed ( true )
, m_bToBeEncrypted ( false )
, m_bHaveOwnKey ( false )
, m_bIsEncrypted ( false )
, m_nImportedStartKeyAlgorithm( 0 )
, m_nImportedEncryptionAlgorithm( 0 )
, m_nImportedChecksumAlgorithm( 0 )
, m_nImportedDerivedKeySize( 0 )
, m_nStreamMode( PACKAGE_STREAM_NOTSET )
, m_nMagicalHackPos( 0 )
, m_nMagicalHackSize( 0 )
, m_nOwnStreamOrigSize( 0 )
, m_bHasSeekable( false )
, m_bCompressedIsSetFromOutside( false )
, m_bFromManifest( false )
, m_bUseWinEncoding( false )
, m_bRawStream( false )
{
    m_xContext = xContext;
    m_nFormat = nFormat;
    mbAllowRemoveOnInsert = bAllowRemoveOnInsert;
    SetFolder ( false );
    aEntry.nVersion     = -1;
    aEntry.nFlag        = 0;
    aEntry.nMethod      = -1;
    aEntry.nTime        = -1;
    aEntry.nCrc         = -1;
    aEntry.nCompressedSize  = -1;
    aEntry.nSize        = -1;
    aEntry.nOffset      = -1;
    aEntry.nPathLen     = -1;
    aEntry.nExtraLen    = -1;
}

ZipPackageStream::~ZipPackageStream()
{
}

void ZipPackageStream::setZipEntryOnLoading( const ZipEntry &rInEntry )
{
    aEntry.nVersion = rInEntry.nVersion;
    aEntry.nFlag = rInEntry.nFlag;
    aEntry.nMethod = rInEntry.nMethod;
    aEntry.nTime = rInEntry.nTime;
    aEntry.nCrc = rInEntry.nCrc;
    aEntry.nCompressedSize = rInEntry.nCompressedSize;
    aEntry.nSize = rInEntry.nSize;
    aEntry.nOffset = rInEntry.nOffset;
    aEntry.sPath = rInEntry.sPath;
    aEntry.nPathLen = rInEntry.nPathLen;
    aEntry.nExtraLen = rInEntry.nExtraLen;

    if ( aEntry.nMethod == STORED )
        m_bToBeCompressed = false;
}

void ZipPackageStream::CloseOwnStreamIfAny()
{
    if ( m_xStream.is() )
    {
        m_xStream->closeInput();
        m_xStream.clear();
        m_bHasSeekable = false;
    }
}

uno::Reference< io::XInputStream > ZipPackageStream::GetOwnSeekStream()
{
    if ( !m_bHasSeekable && m_xStream.is() )
    {
        // The package component requires that every stream either be FROM a package or it must support XSeekable!
        // The only exception is a nonseekable stream that is provided only for storing, if such a stream
        // is accessed before commit it MUST be wrapped.
        // Wrap the stream in case it is not seekable
        m_xStream = ::comphelper::OSeekableInputWrapper::CheckSeekableCanWrap( m_xStream, m_xContext );
        uno::Reference< io::XSeekable > xSeek( m_xStream, UNO_QUERY );
        if ( !xSeek.is() )
            throw RuntimeException( THROW_WHERE "The stream must support XSeekable!" );

        m_bHasSeekable = true;
    }

    return m_xStream;
}

uno::Reference< io::XInputStream > ZipPackageStream::GetRawEncrStreamNoHeaderCopy()
{
    if ( m_nStreamMode != PACKAGE_STREAM_RAW || !GetOwnSeekStream().is() )
        throw io::IOException(THROW_WHERE );

    if ( m_xBaseEncryptionData.is() )
        throw ZipIOException(THROW_WHERE "Encrypted stream without encryption data!" );

    uno::Reference< io::XSeekable > xSeek( GetOwnSeekStream(), UNO_QUERY );
    if ( !xSeek.is() )
        throw ZipIOException(THROW_WHERE "The stream must be seekable!" );

    // skip header
    xSeek->seek( n_ConstHeaderSize + m_xBaseEncryptionData->m_aInitVector.getLength() +
                    m_xBaseEncryptionData->m_aSalt.getLength() + m_xBaseEncryptionData->m_aDigest.getLength() );

    // create temporary stream
    uno::Reference < io::XTempFile > xTempFile = io::TempFile::create(m_xContext);
    uno::Reference < io::XOutputStream > xTempOut = xTempFile->getOutputStream();
    uno::Reference < io::XInputStream > xTempIn = xTempFile->getInputStream();;
    uno::Reference < io::XSeekable > xTempSeek( xTempOut, UNO_QUERY_THROW );

    // copy the raw stream to the temporary file starting from the current position
    ::comphelper::OStorageHelper::CopyInputToOutput( GetOwnSeekStream(), xTempOut );
    xTempOut->closeOutput();
    xTempSeek->seek( 0 );

    return xTempIn;
}

sal_Int32 ZipPackageStream::GetEncryptionAlgorithm() const
{
    return m_nImportedEncryptionAlgorithm ? m_nImportedEncryptionAlgorithm : m_rZipPackage.GetEncAlgID();
}

sal_Int32 ZipPackageStream::GetBlockSize() const
{
    return GetEncryptionAlgorithm() == css::xml::crypto::CipherID::AES_CBC_W3C_PADDING ? 16 : 8;
}

::rtl::Reference< EncryptionData > ZipPackageStream::GetEncryptionData( bool bUseWinEncoding )
{
    ::rtl::Reference< EncryptionData > xResult;
    if ( m_xBaseEncryptionData.is() )
        xResult = new EncryptionData(
            *m_xBaseEncryptionData,
            GetEncryptionKey( bUseWinEncoding ),
            GetEncryptionAlgorithm(),
            m_nImportedChecksumAlgorithm ? m_nImportedChecksumAlgorithm : m_rZipPackage.GetChecksumAlgID(),
            m_nImportedDerivedKeySize ? m_nImportedDerivedKeySize : m_rZipPackage.GetDefaultDerivedKeySize(),
            GetStartKeyGenID() );

    return xResult;
}

uno::Sequence< sal_Int8 > ZipPackageStream::GetEncryptionKey( bool bUseWinEncoding )
{
    uno::Sequence< sal_Int8 > aResult;
    sal_Int32 nKeyGenID = GetStartKeyGenID();
    bUseWinEncoding = ( bUseWinEncoding || m_bUseWinEncoding );

    if ( m_bHaveOwnKey && m_aStorageEncryptionKeys.getLength() )
    {
        OUString aNameToFind;
        if ( nKeyGenID == xml::crypto::DigestID::SHA256 )
            aNameToFind = PACKAGE_ENCRYPTIONDATA_SHA256UTF8;
        else if ( nKeyGenID == xml::crypto::DigestID::SHA1 )
        {
            aNameToFind = bUseWinEncoding ? OUString(PACKAGE_ENCRYPTIONDATA_SHA1MS1252) : OUString(PACKAGE_ENCRYPTIONDATA_SHA1UTF8);
        }
        else
            throw uno::RuntimeException(THROW_WHERE "No expected key is provided!" );

        for ( sal_Int32 nInd = 0; nInd < m_aStorageEncryptionKeys.getLength(); nInd++ )
            if ( m_aStorageEncryptionKeys[nInd].Name.equals( aNameToFind ) )
                m_aStorageEncryptionKeys[nInd].Value >>= aResult;

        // empty keys are not allowed here
        // so it is not important whether there is no key, or the key is empty, it is an error
        if ( !aResult.getLength() )
            throw uno::RuntimeException(THROW_WHERE "No expected key is provided!" );
    }
    else
        aResult = m_aEncryptionKey;

    if ( !aResult.getLength() || !m_bHaveOwnKey )
        aResult = m_rZipPackage.GetEncryptionKey();

    return aResult;
}

sal_Int32 ZipPackageStream::GetStartKeyGenID()
{
    // generally should all the streams use the same Start Key
    // but if raw copy without password takes place, we should preserve the imported algorithm
    return m_nImportedStartKeyAlgorithm ? m_nImportedStartKeyAlgorithm : m_rZipPackage.GetStartKeyGenID();
}

uno::Reference< io::XInputStream > ZipPackageStream::TryToGetRawFromDataStream( bool bAddHeaderForEncr )
{
    if ( m_nStreamMode != PACKAGE_STREAM_DATA || !GetOwnSeekStream().is() || ( bAddHeaderForEncr && !m_bToBeEncrypted ) )
        throw packages::NoEncryptionException(THROW_WHERE );

    Sequence< sal_Int8 > aKey;

    if ( m_bToBeEncrypted )
    {
        aKey = GetEncryptionKey();
        if ( !aKey.getLength() )
            throw packages::NoEncryptionException(THROW_WHERE );
    }

    try
    {
        // create temporary file
        uno::Reference < io::XStream > xTempStream(
                            io::TempFile::create(m_xContext),
                            uno::UNO_QUERY_THROW );

        // create a package based on it
        ZipPackage* pPackage = new ZipPackage( m_xContext );
        uno::Reference< XSingleServiceFactory > xPackageAsFactory( static_cast< XSingleServiceFactory* >( pPackage ) );
        if ( !xPackageAsFactory.is() )
            throw RuntimeException(THROW_WHERE );

        Sequence< Any > aArgs( 1 );
        aArgs[0] <<= xTempStream;
        pPackage->initialize( aArgs );

        // create a new package stream
        uno::Reference< XDataSinkEncrSupport > xNewPackStream( xPackageAsFactory->createInstance(), UNO_QUERY );
        if ( !xNewPackStream.is() )
            throw RuntimeException(THROW_WHERE );

        xNewPackStream->setDataStream( static_cast< io::XInputStream* >(
                                                    new WrapStreamForShare( GetOwnSeekStream(), m_rZipPackage.GetSharedMutexRef() ) ) );

        uno::Reference< XPropertySet > xNewPSProps( xNewPackStream, UNO_QUERY );
        if ( !xNewPSProps.is() )
            throw RuntimeException(THROW_WHERE );

        // copy all the properties of this stream to the new stream
        xNewPSProps->setPropertyValue("MediaType", makeAny( msMediaType ) );
        xNewPSProps->setPropertyValue("Compressed", makeAny( m_bToBeCompressed ) );
        if ( m_bToBeEncrypted )
        {
            xNewPSProps->setPropertyValue(ENCRYPTION_KEY_PROPERTY, makeAny( aKey ) );
            xNewPSProps->setPropertyValue("Encrypted", makeAny( true ) );
        }

        // insert a new stream in the package
        uno::Reference< XUnoTunnel > xTunnel;
        Any aRoot = pPackage->getByHierarchicalName("/");
        aRoot >>= xTunnel;
        uno::Reference< container::XNameContainer > xRootNameContainer( xTunnel, UNO_QUERY );
        if ( !xRootNameContainer.is() )
            throw RuntimeException(THROW_WHERE );

        uno::Reference< XUnoTunnel > xNPSTunnel( xNewPackStream, UNO_QUERY );
        xRootNameContainer->insertByName("dummy", makeAny( xNPSTunnel ) );

        // commit the temporary package
        pPackage->commitChanges();

        // get raw stream from the temporary package
        uno::Reference< io::XInputStream > xInRaw;
        if ( bAddHeaderForEncr )
            xInRaw = xNewPackStream->getRawStream();
        else
            xInRaw = xNewPackStream->getPlainRawStream();

        // create another temporary file
        uno::Reference < io::XOutputStream > xTempOut(
                            io::TempFile::create(m_xContext),
                            uno::UNO_QUERY_THROW );
        uno::Reference < io::XInputStream > xTempIn( xTempOut, UNO_QUERY_THROW );
        uno::Reference < io::XSeekable > xTempSeek( xTempOut, UNO_QUERY_THROW );

        // copy the raw stream to the temporary file
        ::comphelper::OStorageHelper::CopyInputToOutput( xInRaw, xTempOut );
        xTempOut->closeOutput();
        xTempSeek->seek( 0 );

        // close raw stream, package stream and folder
        xInRaw.clear();
        xNewPSProps.clear();
        xNPSTunnel.clear();
        xNewPackStream.clear();
        xTunnel.clear();
        xRootNameContainer.clear();

        // return the stream representing the first temporary file
        return xTempIn;
    }
    catch ( RuntimeException& )
    {
        throw;
    }
    catch ( Exception& )
    {
    }

    throw io::IOException(THROW_WHERE );
}

bool ZipPackageStream::ParsePackageRawStream()
{
    OSL_ENSURE( GetOwnSeekStream().is(), "A stream must be provided!\n" );

    if ( !GetOwnSeekStream().is() )
        return false;

    bool bOk = false;

    ::rtl::Reference< BaseEncryptionData > xTempEncrData;
    sal_Int32 nMagHackSize = 0;
    Sequence < sal_Int8 > aHeader ( 4 );

    try
    {
        if ( GetOwnSeekStream()->readBytes ( aHeader, 4 ) == 4 )
        {
            const sal_Int8 *pHeader = aHeader.getConstArray();
            sal_uInt32 nHeader = ( pHeader [0] & 0xFF )       |
                                 ( pHeader [1] & 0xFF ) << 8  |
                                 ( pHeader [2] & 0xFF ) << 16 |
                                 ( pHeader [3] & 0xFF ) << 24;
            if ( nHeader == n_ConstHeader )
            {
                // this is one of our god-awful, but extremely devious hacks, everyone cheer
                xTempEncrData = new BaseEncryptionData;

                OUString aMediaType;
                sal_Int32 nEncAlgorithm = 0;
                sal_Int32 nChecksumAlgorithm = 0;
                sal_Int32 nDerivedKeySize = 0;
                sal_Int32 nStartKeyGenID = 0;
                if ( ZipFile::StaticFillData( xTempEncrData, nEncAlgorithm, nChecksumAlgorithm, nDerivedKeySize, nStartKeyGenID, nMagHackSize, aMediaType, GetOwnSeekStream() ) )
                {
                    // We'll want to skip the data we've just read, so calculate how much we just read
                    // and remember it
                    m_nMagicalHackPos = n_ConstHeaderSize + xTempEncrData->m_aSalt.getLength()
                                                        + xTempEncrData->m_aInitVector.getLength()
                                                        + xTempEncrData->m_aDigest.getLength()
                                                        + aMediaType.getLength() * sizeof( sal_Unicode );
                    m_nImportedEncryptionAlgorithm = nEncAlgorithm;
                    m_nImportedChecksumAlgorithm = nChecksumAlgorithm;
                    m_nImportedDerivedKeySize = nDerivedKeySize;
                    m_nImportedStartKeyAlgorithm = nStartKeyGenID;
                    m_nMagicalHackSize = nMagHackSize;
                    msMediaType = aMediaType;

                    bOk = true;
                }
            }
        }
    }
    catch( Exception& )
    {
    }

    if ( !bOk )
    {
        // the provided stream is not a raw stream
        return false;
    }

    m_xBaseEncryptionData = xTempEncrData;
    SetIsEncrypted ( true );
    // it's already compressed and encrypted
    m_bToBeEncrypted = m_bToBeCompressed = false;

    return true;
}

static void deflateZipEntry(ZipOutputEntry *pZipEntry,
        const uno::Reference< io::XInputStream >& xInStream)
{
    sal_Int32 nLength = 0;
    uno::Sequence< sal_Int8 > aSeq(n_ConstBufferSize);
    do
    {
        nLength = xInStream->readBytes(aSeq, n_ConstBufferSize);
        if (nLength != n_ConstBufferSize)
            aSeq.realloc(nLength);

        pZipEntry->write(aSeq);
    }
    while (nLength == n_ConstBufferSize);
    pZipEntry->closeEntry();
}

class DeflateThread: public comphelper::ThreadTask
{
    ZipOutputEntry *mpEntry;
    uno::Reference< io::XInputStream > mxInStream;

public:
    DeflateThread( ZipOutputEntry *pEntry,
                   const uno::Reference< io::XInputStream >& xInStream )
        : mpEntry(pEntry)
        , mxInStream(xInStream)
    {}

private:
    virtual void doWork() override
    {
        try
        {
            mpEntry->createBufferFile();
            deflateZipEntry(mpEntry, mxInStream);
            mxInStream.clear();
            mpEntry->closeBufferFile();
        }
        catch (const uno::Exception&)
        {
            mpEntry->setParallelDeflateException(::cppu::getCaughtException());
        }
    }
};

static void ImplSetStoredData( ZipEntry & rEntry, uno::Reference< io::XInputStream> & rStream )
{
    // It's very annoying that we have to do this, but lots of zip packages
    // don't allow data descriptors for STORED streams, meaning we have to
    // know the size and CRC32 of uncompressed streams before we actually
    // write them !
    CRC32 aCRC32;
    rEntry.nMethod = STORED;
    rEntry.nCompressedSize = rEntry.nSize = aCRC32.updateStream ( rStream );
    rEntry.nCrc = aCRC32.getValue();
}

bool ZipPackageStream::saveChild(
        const OUString &rPath,
        std::vector < uno::Sequence < beans::PropertyValue > > &rManList,
        ZipOutputStream & rZipOut,
        const uno::Sequence < sal_Int8 >& rEncryptionKey,
        const rtlRandomPool &rRandomPool)
{
    bool bSuccess = true;

    const OUString sMediaTypeProperty ("MediaType");
    const OUString sVersionProperty ("Version");
    const OUString sFullPathProperty ("FullPath");
    const OUString sInitialisationVectorProperty ("InitialisationVector");
    const OUString sSaltProperty ("Salt");
    const OUString sIterationCountProperty ("IterationCount");
    const OUString sSizeProperty ("Size");
    const OUString sDigestProperty ("Digest");
    const OUString sEncryptionAlgProperty    ("EncryptionAlgorithm");
    const OUString sStartKeyAlgProperty  ("StartKeyAlgorithm");
    const OUString sDigestAlgProperty    ("DigestAlgorithm");
    const OUString sDerivedKeySizeProperty  ("DerivedKeySize");

    uno::Sequence < beans::PropertyValue > aPropSet (PKG_SIZE_NOENCR_MNFST);

    // if pTempEntry is necessary, it will be released and passed to the ZipOutputStream
    // and be deleted in the ZipOutputStream destructor
    std::unique_ptr < ZipEntry > pAutoTempEntry ( new ZipEntry );
    ZipEntry* pTempEntry = pAutoTempEntry.get();

    // In case the entry we are reading is also the entry we are writing, we will
    // store the ZipEntry data in pTempEntry

    ZipPackageFolder::copyZipEntry ( *pTempEntry, aEntry );
    pTempEntry->sPath = rPath;
    pTempEntry->nPathLen = (sal_Int16)( OUStringToOString( pTempEntry->sPath, RTL_TEXTENCODING_UTF8 ).getLength() );

    const bool bToBeEncrypted = m_bToBeEncrypted && (rEncryptionKey.getLength() || m_bHaveOwnKey);
    const bool bToBeCompressed = bToBeEncrypted || m_bToBeCompressed;

    aPropSet[PKG_MNFST_MEDIATYPE].Name = sMediaTypeProperty;
    aPropSet[PKG_MNFST_MEDIATYPE].Value <<= GetMediaType( );
    aPropSet[PKG_MNFST_VERSION].Name = sVersionProperty;
    aPropSet[PKG_MNFST_VERSION].Value <<= OUString(); // no version is stored for streams currently
    aPropSet[PKG_MNFST_FULLPATH].Name = sFullPathProperty;
    aPropSet[PKG_MNFST_FULLPATH].Value <<= pTempEntry->sPath;

    OSL_ENSURE( m_nStreamMode != PACKAGE_STREAM_NOTSET, "Unacceptable ZipPackageStream mode!" );

    m_bRawStream = false;
    if ( m_nStreamMode == PACKAGE_STREAM_DETECT )
        m_bRawStream = ParsePackageRawStream();
    else if ( m_nStreamMode == PACKAGE_STREAM_RAW )
        m_bRawStream = true;

    bool bParallelDeflate = false;
    bool bTransportOwnEncrStreamAsRaw = false;
    // During the storing the original size of the stream can be changed
    // TODO/LATER: get rid of this hack
    m_nOwnStreamOrigSize = m_bRawStream ? m_nMagicalHackSize : aEntry.nSize;

    bool bUseNonSeekableAccess = false;
    uno::Reference < io::XInputStream > xStream;
    if ( !IsPackageMember() && !m_bRawStream && !bToBeEncrypted && bToBeCompressed )
    {
        // the stream is not a package member, not a raw stream,
        // it should not be encrypted and it should be compressed,
        // in this case nonseekable access can be used

        xStream = m_xStream;
        uno::Reference < io::XSeekable > xSeek ( xStream, uno::UNO_QUERY );

        bUseNonSeekableAccess = ( xStream.is() && !xSeek.is() );
    }

    if ( !bUseNonSeekableAccess )
    {
        xStream = getRawData();

        if ( !xStream.is() )
        {
            OSL_FAIL( "ZipPackageStream didn't have a stream associated with it, skipping!" );
            bSuccess = false;
            return bSuccess;
        }

        uno::Reference < io::XSeekable > xSeek ( xStream, uno::UNO_QUERY );
        try
        {
            if ( xSeek.is() )
            {
                // If the stream is a raw one, then we should be positioned
                // at the beginning of the actual data
                if ( !bToBeCompressed || m_bRawStream )
                {
                    // The raw stream can neither be encrypted nor connected
                    OSL_ENSURE( !m_bRawStream || !(bToBeCompressed || bToBeEncrypted), "The stream is already encrypted!\n" );
                    xSeek->seek ( m_bRawStream ? m_nMagicalHackPos : 0 );
                    ImplSetStoredData ( *pTempEntry, xStream );

                    // TODO/LATER: Get rid of hacks related to switching of Flag Method and Size properties!
                }
                else if ( bToBeEncrypted )
                {
                    // this is the correct original size
                    pTempEntry->nSize = xSeek->getLength();
                    m_nOwnStreamOrigSize = pTempEntry->nSize;
                }

                xSeek->seek ( 0 );
            }
            else
            {
                // Okay, we don't have an xSeekable stream. This is possibly bad.
                // check if it's one of our own streams, if it is then we know that
                // each time we ask for it we'll get a new stream that will be
                // at position zero...otherwise, assert and skip this stream...
                if ( IsPackageMember() )
                {
                    // if the password has been changed than the stream should not be package member any more
                    if ( m_bIsEncrypted && m_bToBeEncrypted )
                    {
                        // Should be handled close to the raw stream handling
                        bTransportOwnEncrStreamAsRaw = true;
                        pTempEntry->nMethod = STORED;

                        // TODO/LATER: get rid of this situation
                        // this size should be different from the one that will be stored in manifest.xml
                        // it is used in storing algorithms and after storing the correct size will be set
                        pTempEntry->nSize = pTempEntry->nCompressedSize;
                    }
                }
                else
                {
                    bSuccess = false;
                    return bSuccess;
                }
            }
        }
        catch ( uno::Exception& )
        {
            bSuccess = false;
            return bSuccess;
        }

        if ( bToBeEncrypted || m_bRawStream || bTransportOwnEncrStreamAsRaw )
        {
            if ( bToBeEncrypted && !bTransportOwnEncrStreamAsRaw )
            {
                uno::Sequence < sal_Int8 > aSalt( 16 ), aVector( GetBlockSize() );
                rtl_random_getBytes ( rRandomPool, aSalt.getArray(), 16 );
                rtl_random_getBytes ( rRandomPool, aVector.getArray(), aVector.getLength() );
                sal_Int32 nIterationCount = 1024;

                if ( !m_bHaveOwnKey )
                {
                    m_aEncryptionKey = rEncryptionKey;
                    m_aStorageEncryptionKeys.realloc( 0 );
                }

                setInitialisationVector ( aVector );
                setSalt ( aSalt );
                setIterationCount ( nIterationCount );
            }

            // last property is digest, which is inserted later if we didn't have
            // a magic header
            aPropSet.realloc(PKG_SIZE_ENCR_MNFST);

            aPropSet[PKG_MNFST_INIVECTOR].Name = sInitialisationVectorProperty;
            aPropSet[PKG_MNFST_INIVECTOR].Value <<= m_xBaseEncryptionData->m_aInitVector;
            aPropSet[PKG_MNFST_SALT].Name = sSaltProperty;
            aPropSet[PKG_MNFST_SALT].Value <<= m_xBaseEncryptionData->m_aSalt;
            aPropSet[PKG_MNFST_ITERATION].Name = sIterationCountProperty;
            aPropSet[PKG_MNFST_ITERATION].Value <<= m_xBaseEncryptionData->m_nIterationCount;

            // Need to store the uncompressed size in the manifest
            OSL_ENSURE( m_nOwnStreamOrigSize >= 0, "The stream size was not correctly initialized!\n" );
            aPropSet[PKG_MNFST_UCOMPSIZE].Name = sSizeProperty;
            aPropSet[PKG_MNFST_UCOMPSIZE].Value <<= m_nOwnStreamOrigSize;

            if ( m_bRawStream || bTransportOwnEncrStreamAsRaw )
            {
                ::rtl::Reference< EncryptionData > xEncData = GetEncryptionData();
                if ( !xEncData.is() )
                    throw uno::RuntimeException();

                aPropSet[PKG_MNFST_DIGEST].Name = sDigestProperty;
                aPropSet[PKG_MNFST_DIGEST].Value <<= m_xBaseEncryptionData->m_aDigest;
                aPropSet[PKG_MNFST_ENCALG].Name = sEncryptionAlgProperty;
                aPropSet[PKG_MNFST_ENCALG].Value <<= xEncData->m_nEncAlg;
                aPropSet[PKG_MNFST_STARTALG].Name = sStartKeyAlgProperty;
                aPropSet[PKG_MNFST_STARTALG].Value <<= xEncData->m_nStartKeyGenID;
                aPropSet[PKG_MNFST_DIGESTALG].Name = sDigestAlgProperty;
                aPropSet[PKG_MNFST_DIGESTALG].Value <<= xEncData->m_nCheckAlg;
                aPropSet[PKG_MNFST_DERKEYSIZE].Name = sDerivedKeySizeProperty;
                aPropSet[PKG_MNFST_DERKEYSIZE].Value <<= xEncData->m_nDerivedKeySize;
            }
        }
    }

    // If the entry is already stored in the zip file in the format we
    // want for this write...copy it raw
    if ( !bUseNonSeekableAccess
      && ( m_bRawStream || bTransportOwnEncrStreamAsRaw
        || ( IsPackageMember() && !bToBeEncrypted
          && ( ( aEntry.nMethod == DEFLATED && bToBeCompressed )
            || ( aEntry.nMethod == STORED && !bToBeCompressed ) ) ) ) )
    {
        // If it's a PackageMember, then it's an unbuffered stream and we need
        // to get a new version of it as we can't seek backwards.
        if ( IsPackageMember() )
        {
            xStream = getRawData();
            if ( !xStream.is() )
            {
                // Make sure that we actually _got_ a new one !
                bSuccess = false;
                return bSuccess;
            }
        }

        try
        {
            if ( m_bRawStream )
                xStream->skipBytes( m_nMagicalHackPos );

            ZipOutputStream::setEntry(pTempEntry);
            rZipOut.writeLOC(pTempEntry);
            // the entry is provided to the ZipOutputStream that will delete it
            pAutoTempEntry.release();

            uno::Sequence < sal_Int8 > aSeq ( n_ConstBufferSize );
            sal_Int32 nLength;

            do
            {
                nLength = xStream->readBytes( aSeq, n_ConstBufferSize );
                if (nLength != n_ConstBufferSize)
                    aSeq.realloc(nLength);

                rZipOut.rawWrite(aSeq);
            }
            while ( nLength == n_ConstBufferSize );

            rZipOut.rawCloseEntry();
        }
        catch ( ZipException& )
        {
            bSuccess = false;
        }
        catch ( io::IOException& )
        {
            bSuccess = false;
        }
    }
    else
    {
        // This stream is defenitly not a raw stream

        // If nonseekable access is used the stream should be at the beginning and
        // is useless after the storing. Thus if the storing fails the package should
        // be thrown away ( as actually it is done currently )!
        // To allow to reuse the package after the error, the optimization must be removed!

        // If it's a PackageMember, then our previous reference held a 'raw' stream
        // so we need to re-get it, unencrypted, uncompressed and positioned at the
        // beginning of the stream
        if ( IsPackageMember() )
        {
            xStream = getInputStream();
            if ( !xStream.is() )
            {
                // Make sure that we actually _got_ a new one !
                bSuccess = false;
                return bSuccess;
            }
        }

        if ( bToBeCompressed )
        {
            pTempEntry->nMethod = DEFLATED;
            pTempEntry->nCrc = -1;
            pTempEntry->nCompressedSize = pTempEntry->nSize = -1;
        }

        uno::Reference< io::XSeekable > xSeek(xStream, uno::UNO_QUERY);
        // It's not worth to deflate jpegs to save ~1% in a slow process
        // Unfortunately, does not work for streams protected by password
        if (xSeek.is() && msMediaType.endsWith("/jpeg") && !m_bToBeEncrypted)
        {
            ImplSetStoredData(*pTempEntry, xStream);
            xSeek->seek(0);
        }

        try
        {
            ZipOutputStream::setEntry(pTempEntry);
            // the entry is provided to the ZipOutputStream that will delete it
            pAutoTempEntry.release();

            if (pTempEntry->nMethod == STORED)
            {
                sal_Int32 nLength;
                uno::Sequence< sal_Int8 > aSeq(n_ConstBufferSize);
                rZipOut.writeLOC(pTempEntry, bToBeEncrypted);
                do
                {
                    nLength = xStream->readBytes(aSeq, n_ConstBufferSize);
                    if (nLength != n_ConstBufferSize)
                        aSeq.realloc(nLength);

                    rZipOut.rawWrite(aSeq);
                }
                while ( nLength == n_ConstBufferSize );
                rZipOut.rawCloseEntry(bToBeEncrypted);
            }
            else
            {
                bParallelDeflate = true;
                // Do not deflate small streams in a thread
                if (xSeek.is() && xSeek->getLength() < 100000)
                    bParallelDeflate = false;

                if (bParallelDeflate)
                {
                    // Start a new thread deflating this zip entry
                    ZipOutputEntry *pZipEntry = new ZipOutputEntry(
                            m_xContext, *pTempEntry, this, bToBeEncrypted);
                    rZipOut.addDeflatingThread( pZipEntry, new DeflateThread(pZipEntry, xStream) );
                }
                else
                {
                    rZipOut.writeLOC(pTempEntry, bToBeEncrypted);
                    ZipOutputEntry aZipEntry(rZipOut.getStream(), m_xContext, *pTempEntry, this, bToBeEncrypted);
                    deflateZipEntry(&aZipEntry, xStream);
                    rZipOut.rawCloseEntry(bToBeEncrypted);
                }
            }
        }
        catch ( ZipException& )
        {
            bSuccess = false;
        }
        catch ( io::IOException& )
        {
            bSuccess = false;
        }

        if ( bToBeEncrypted )
        {
            ::rtl::Reference< EncryptionData > xEncData = GetEncryptionData();
            if ( !xEncData.is() )
                throw uno::RuntimeException();

            aPropSet[PKG_MNFST_DIGEST].Name = sDigestProperty;
            aPropSet[PKG_MNFST_DIGEST].Value <<= m_xBaseEncryptionData->m_aDigest;
            aPropSet[PKG_MNFST_ENCALG].Name = sEncryptionAlgProperty;
            aPropSet[PKG_MNFST_ENCALG].Value <<= xEncData->m_nEncAlg;
            aPropSet[PKG_MNFST_STARTALG].Name = sStartKeyAlgProperty;
            aPropSet[PKG_MNFST_STARTALG].Value <<= xEncData->m_nStartKeyGenID;
            aPropSet[PKG_MNFST_DIGESTALG].Name = sDigestAlgProperty;
            aPropSet[PKG_MNFST_DIGESTALG].Value <<= xEncData->m_nCheckAlg;
            aPropSet[PKG_MNFST_DERKEYSIZE].Name = sDerivedKeySizeProperty;
            aPropSet[PKG_MNFST_DERKEYSIZE].Value <<= xEncData->m_nDerivedKeySize;

            SetIsEncrypted ( true );
        }
    }

    if (bSuccess && !bParallelDeflate)
        successfullyWritten(pTempEntry);

    if ( aPropSet.getLength()
      && ( m_nFormat == embed::StorageFormats::PACKAGE || m_nFormat == embed::StorageFormats::OFOPXML ) )
        rManList.push_back( aPropSet );

    return bSuccess;
}

void ZipPackageStream::successfullyWritten( ZipEntry *pEntry )
{
    if ( !IsPackageMember() )
    {
        CloseOwnStreamIfAny();
        SetPackageMember ( true );
    }

    if ( m_bRawStream )
    {
        // the raw stream was integrated and now behaves
        // as usual encrypted stream
        SetToBeEncrypted( true );
    }

    // Then copy it back afterwards...
    ZipPackageFolder::copyZipEntry( aEntry, *pEntry );

    // TODO/LATER: get rid of this hack ( the encrypted stream size property is changed during saving )
    if ( IsEncrypted() )
        setSize( m_nOwnStreamOrigSize );

    aEntry.nOffset *= -1;
}

void ZipPackageStream::SetPackageMember( bool bNewValue )
{
    if ( bNewValue )
    {
        m_nStreamMode = PACKAGE_STREAM_PACKAGEMEMBER;
        m_nMagicalHackPos = 0;
        m_nMagicalHackSize = 0;
    }
    else if ( m_nStreamMode == PACKAGE_STREAM_PACKAGEMEMBER )
        m_nStreamMode = PACKAGE_STREAM_NOTSET; // must be reset
}

// XActiveDataSink
void SAL_CALL ZipPackageStream::setInputStream( const uno::Reference< io::XInputStream >& aStream )
        throw( RuntimeException, std::exception )
{
    // if seekable access is required the wrapping will be done on demand
    m_xStream = aStream;
    m_nImportedEncryptionAlgorithm = 0;
    m_bHasSeekable = false;
    SetPackageMember ( false );
    aEntry.nTime = -1;
    m_nStreamMode = PACKAGE_STREAM_DETECT;
}

uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getRawData()
        throw( RuntimeException )
{
    try
    {
        if ( IsPackageMember() )
        {
            return m_rZipPackage.getZipFile().getRawData( aEntry, GetEncryptionData(), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
        }
        else if ( GetOwnSeekStream().is() )
        {
            return new WrapStreamForShare( GetOwnSeekStream(), m_rZipPackage.GetSharedMutexRef() );
        }
        else
            return uno::Reference < io::XInputStream > ();
    }
    catch ( ZipException & )//rException )
    {
        OSL_FAIL( "ZipException thrown" );//rException.Message);
        return uno::Reference < io::XInputStream > ();
    }
    catch ( Exception & )
    {
        OSL_FAIL( "Exception is thrown during stream wrapping!\n" );
        return uno::Reference < io::XInputStream > ();
    }
}

uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getInputStream()
        throw( RuntimeException, std::exception )
{
    try
    {
        if ( IsPackageMember() )
        {
            return m_rZipPackage.getZipFile().getInputStream( aEntry, GetEncryptionData(), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
        }
        else if ( GetOwnSeekStream().is() )
        {
            return new WrapStreamForShare( GetOwnSeekStream(), m_rZipPackage.GetSharedMutexRef() );
        }
        else
            return uno::Reference < io::XInputStream > ();
    }
    catch ( ZipException & )//rException )
    {
        OSL_FAIL( "ZipException thrown" );//rException.Message);
        return uno::Reference < io::XInputStream > ();
    }
    catch ( Exception &ex )
    {
        OSL_FAIL( "Exception is thrown during stream wrapping!\n" );
        OSL_FAIL(OUStringToOString(ex.Message, RTL_TEXTENCODING_UTF8).getStr());
        (void)ex;
        return uno::Reference < io::XInputStream > ();
    }
}

// XDataSinkEncrSupport
uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getDataStream()
        throw ( packages::WrongPasswordException, ZipException,
                io::IOException,
                RuntimeException, std::exception )
{
    // There is no stream attached to this object
    if ( m_nStreamMode == PACKAGE_STREAM_NOTSET )
        return uno::Reference< io::XInputStream >();

    // this method can not be used together with old approach
    if ( m_nStreamMode == PACKAGE_STREAM_DETECT )
        throw packages::zip::ZipIOException(THROW_WHERE );

    if ( IsPackageMember() )
    {
        uno::Reference< io::XInputStream > xResult;
        try
        {
            xResult = m_rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData(), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
        }
        catch( const packages::WrongPasswordException& )
        {
            if ( m_rZipPackage.GetStartKeyGenID() == xml::crypto::DigestID::SHA1 )
            {
                try
                {
                    // rhbz#1013844 / fdo#47482 workaround for the encrypted
                    // OpenOffice.org 1.0 documents generated by Libreoffice <=
                    // 3.6 with the new encryption format and using SHA256, but
                    // missing a specified startkey of SHA256

                    // force SHA256 and see if that works
                    m_nImportedStartKeyAlgorithm = xml::crypto::DigestID::SHA256;
                    xResult = m_rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData(), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
                    return xResult;
                }
                catch (const packages::WrongPasswordException&)
                {
                    // if that didn't work, restore to SHA1 and trundle through the *other* earlier
                    // bug fix
                    m_nImportedStartKeyAlgorithm = xml::crypto::DigestID::SHA1;
                }

                // workaround for the encrypted documents generated with the old OOo1.x bug.
                if ( !m_bUseWinEncoding )
                {
                    xResult = m_rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData( true ), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
                    m_bUseWinEncoding = true;
                }
                else
                    throw;
            }
            else
                throw;
        }
        return xResult;
    }
    else if ( m_nStreamMode == PACKAGE_STREAM_RAW )
        return ZipFile::StaticGetDataFromRawStream( m_xContext, GetOwnSeekStream(), GetEncryptionData() );
    else if ( GetOwnSeekStream().is() )
    {
        return new WrapStreamForShare( GetOwnSeekStream(), m_rZipPackage.GetSharedMutexRef() );
    }
    else
        return uno::Reference< io::XInputStream >();
}

uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getRawStream()
        throw ( packages::NoEncryptionException,
                io::IOException,
                uno::RuntimeException, std::exception )
{
    // There is no stream attached to this object
    if ( m_nStreamMode == PACKAGE_STREAM_NOTSET )
        return uno::Reference< io::XInputStream >();

    // this method can not be used together with old approach
    if ( m_nStreamMode == PACKAGE_STREAM_DETECT )
        throw packages::zip::ZipIOException(THROW_WHERE );

    if ( IsPackageMember() )
    {
        if ( !m_bIsEncrypted || !GetEncryptionData().is() )
            throw packages::NoEncryptionException(THROW_WHERE );

        return m_rZipPackage.getZipFile().getWrappedRawStream( aEntry, GetEncryptionData(), msMediaType, m_rZipPackage.GetSharedMutexRef() );
    }
    else if ( GetOwnSeekStream().is() )
    {
        if ( m_nStreamMode == PACKAGE_STREAM_RAW )
        {
            return new WrapStreamForShare( GetOwnSeekStream(), m_rZipPackage.GetSharedMutexRef() );
        }
        else if ( m_nStreamMode == PACKAGE_STREAM_DATA && m_bToBeEncrypted )
            return TryToGetRawFromDataStream( true );
    }

    throw packages::NoEncryptionException(THROW_WHERE );
}

void SAL_CALL ZipPackageStream::setDataStream( const uno::Reference< io::XInputStream >& aStream )
        throw ( io::IOException,
                RuntimeException, std::exception )
{
    setInputStream( aStream );
    m_nStreamMode = PACKAGE_STREAM_DATA;
}

void SAL_CALL ZipPackageStream::setRawStream( const uno::Reference< io::XInputStream >& aStream )
        throw ( packages::EncryptionNotAllowedException,
                packages::NoRawFormatException,
                io::IOException,
                RuntimeException, std::exception )
{
    // wrap the stream in case it is not seekable
    uno::Reference< io::XInputStream > xNewStream = ::comphelper::OSeekableInputWrapper::CheckSeekableCanWrap( aStream, m_xContext );
    uno::Reference< io::XSeekable > xSeek( xNewStream, UNO_QUERY );
    if ( !xSeek.is() )
        throw RuntimeException(THROW_WHERE "The stream must support XSeekable!" );

    xSeek->seek( 0 );
    uno::Reference< io::XInputStream > xOldStream = m_xStream;
    m_xStream = xNewStream;
    if ( !ParsePackageRawStream() )
    {
        m_xStream = xOldStream;
        throw packages::NoRawFormatException(THROW_WHERE );
    }

    // the raw stream MUST have seekable access
    m_bHasSeekable = true;

    SetPackageMember ( false );
    aEntry.nTime = -1;
    m_nStreamMode = PACKAGE_STREAM_RAW;
}

uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getPlainRawStream()
        throw ( io::IOException, packages::NoEncryptionException,
                uno::RuntimeException, std::exception )
{
    // There is no stream attached to this object
    if ( m_nStreamMode == PACKAGE_STREAM_NOTSET )
        return uno::Reference< io::XInputStream >();

    // this method can not be used together with old approach
    if ( m_nStreamMode == PACKAGE_STREAM_DETECT )
        throw packages::zip::ZipIOException(THROW_WHERE );

    if ( IsPackageMember() )
    {
        return m_rZipPackage.getZipFile().getRawData( aEntry, GetEncryptionData(), m_bIsEncrypted, m_rZipPackage.GetSharedMutexRef() );
    }
    else if ( GetOwnSeekStream().is() )
    {
        if ( m_nStreamMode == PACKAGE_STREAM_RAW )
        {
            // the header should not be returned here
            return GetRawEncrStreamNoHeaderCopy();
        }
        else if ( m_nStreamMode == PACKAGE_STREAM_DATA )
            return TryToGetRawFromDataStream( false );
    }

    return uno::Reference< io::XInputStream >();
}

// XUnoTunnel

sal_Int64 SAL_CALL ZipPackageStream::getSomething( const Sequence< sal_Int8 >& aIdentifier )
    throw( RuntimeException, std::exception )
{
    sal_Int64 nMe = 0;
    if ( aIdentifier.getLength() == 16 &&
         0 == memcmp( static_getImplementationId().getConstArray(), aIdentifier.getConstArray(), 16 ) )
        nMe = reinterpret_cast < sal_Int64 > ( this );
    return nMe;
}

// XPropertySet
void SAL_CALL ZipPackageStream::setPropertyValue( const OUString& aPropertyName, const Any& aValue )
        throw( beans::UnknownPropertyException, beans::PropertyVetoException, IllegalArgumentException, WrappedTargetException, RuntimeException, std::exception )
{
    if ( aPropertyName == "MediaType" )
    {
        if ( m_rZipPackage.getFormat() != embed::StorageFormats::PACKAGE && m_rZipPackage.getFormat() != embed::StorageFormats::OFOPXML )
            throw beans::PropertyVetoException(THROW_WHERE );

        if ( aValue >>= msMediaType )
        {
            if ( !msMediaType.isEmpty() )
            {
                if ( msMediaType.indexOf ( "text" ) != -1
                 || msMediaType == "application/vnd.sun.star.oleobject" )
                    m_bToBeCompressed = true;
                else if ( !m_bCompressedIsSetFromOutside )
                    m_bToBeCompressed = false;
            }
        }
        else
            throw IllegalArgumentException(THROW_WHERE "MediaType must be a string!",
                                            uno::Reference< XInterface >(),
                                            2 );

    }
    else if ( aPropertyName == "Size" )
    {
        if ( !( aValue >>= aEntry.nSize ) )
            throw IllegalArgumentException(THROW_WHERE "Wrong type for Size property!",
                                            uno::Reference< XInterface >(),
                                            2 );
    }
    else if ( aPropertyName == "Encrypted" )
    {
        if ( m_rZipPackage.getFormat() != embed::StorageFormats::PACKAGE )
            throw beans::PropertyVetoException(THROW_WHERE );

        bool bEnc = false;
        if ( aValue >>= bEnc )
        {
            // In case of new raw stream, the stream must not be encrypted on storing
            if ( bEnc && m_nStreamMode == PACKAGE_STREAM_RAW )
                throw IllegalArgumentException(THROW_WHERE "Raw stream can not be encrypted on storing",
                                                uno::Reference< XInterface >(),
                                                2 );

            m_bToBeEncrypted = bEnc;
            if ( m_bToBeEncrypted && !m_xBaseEncryptionData.is() )
                m_xBaseEncryptionData = new BaseEncryptionData;
        }
        else
            throw IllegalArgumentException(THROW_WHERE "Wrong type for Encrypted property!",
                                            uno::Reference< XInterface >(),
                                            2 );

    }
    else if ( aPropertyName == ENCRYPTION_KEY_PROPERTY )
    {
        if ( m_rZipPackage.getFormat() != embed::StorageFormats::PACKAGE )
            throw beans::PropertyVetoException(THROW_WHERE );

        uno::Sequence< sal_Int8 > aNewKey;

        if ( !( aValue >>= aNewKey ) )
        {
            OUString sTempString;
            if ( ( aValue >>= sTempString ) )
            {
                sal_Int32 nPathLength = sTempString.getLength();
                Sequence < sal_Int8 > aSequence ( nPathLength );
                sal_Int8 *pArray = aSequence.getArray();
                const sal_Unicode *pChar = sTempString.getStr();
                for ( sal_Int32 i = 0; i < nPathLength; i++ )
                    pArray[i] = static_cast < const sal_Int8 > ( pChar[i] );
                aNewKey = aSequence;
            }
            else
                throw IllegalArgumentException(THROW_WHERE "Wrong type for EncryptionKey property!",
                                                uno::Reference< XInterface >(),
                                                2 );
        }

        if ( aNewKey.getLength() )
        {
            if ( !m_xBaseEncryptionData.is() )
                m_xBaseEncryptionData = new BaseEncryptionData;

            m_aEncryptionKey = aNewKey;
            // In case of new raw stream, the stream must not be encrypted on storing
            m_bHaveOwnKey = true;
            if ( m_nStreamMode != PACKAGE_STREAM_RAW )
                m_bToBeEncrypted = true;
        }
        else
        {
            m_bHaveOwnKey = false;
            m_aEncryptionKey.realloc( 0 );
        }

        m_aStorageEncryptionKeys.realloc( 0 );
    }
    else if ( aPropertyName == STORAGE_ENCRYPTION_KEYS_PROPERTY )
    {
        if ( m_rZipPackage.getFormat() != embed::StorageFormats::PACKAGE )
            throw beans::PropertyVetoException(THROW_WHERE );

        uno::Sequence< beans::NamedValue > aKeys;
        if ( !( aValue >>= aKeys ) )
        {
                throw IllegalArgumentException(THROW_WHERE "Wrong type for StorageEncryptionKeys property!",
                                                uno::Reference< XInterface >(),
                                                2 );
        }

        if ( aKeys.getLength() )
        {
            if ( !m_xBaseEncryptionData.is() )
                m_xBaseEncryptionData = new BaseEncryptionData;

            m_aStorageEncryptionKeys = aKeys;

            // In case of new raw stream, the stream must not be encrypted on storing
            m_bHaveOwnKey = true;
            if ( m_nStreamMode != PACKAGE_STREAM_RAW )
                m_bToBeEncrypted = true;
        }
        else
        {
            m_bHaveOwnKey = false;
            m_aStorageEncryptionKeys.realloc( 0 );
        }

        m_aEncryptionKey.realloc( 0 );
    }
    else if ( aPropertyName == "Compressed" )
    {
        bool bCompr = false;

        if ( aValue >>= bCompr )
        {
            // In case of new raw stream, the stream must not be encrypted on storing
            if ( bCompr && m_nStreamMode == PACKAGE_STREAM_RAW )
                throw IllegalArgumentException(THROW_WHERE "Raw stream can not be encrypted on storing",
                                                uno::Reference< XInterface >(),
                                                2 );

            m_bToBeCompressed = bCompr;
            m_bCompressedIsSetFromOutside = true;
        }
        else
            throw IllegalArgumentException(THROW_WHERE "Wrong type for Compressed property!",
                                            uno::Reference< XInterface >(),
                                            2 );
    }
    else
        throw beans::UnknownPropertyException(THROW_WHERE );
}

Any SAL_CALL ZipPackageStream::getPropertyValue( const OUString& PropertyName )
        throw( beans::UnknownPropertyException, WrappedTargetException, RuntimeException, std::exception )
{
    Any aAny;
    if ( PropertyName == "MediaType" )
    {
        aAny <<= msMediaType;
        return aAny;
    }
    else if ( PropertyName == "Size" )
    {
        aAny <<= aEntry.nSize;
        return aAny;
    }
    else if ( PropertyName == "Encrypted" )
    {
        aAny <<= ((m_nStreamMode == PACKAGE_STREAM_RAW) || m_bToBeEncrypted);
        return aAny;
    }
    else if ( PropertyName == "WasEncrypted" )
    {
        aAny <<= m_bIsEncrypted;
        return aAny;
    }
    else if ( PropertyName == "Compressed" )
    {
        aAny <<= m_bToBeCompressed;
        return aAny;
    }
    else if ( PropertyName == ENCRYPTION_KEY_PROPERTY )
    {
        aAny <<= m_aEncryptionKey;
        return aAny;
    }
    else if ( PropertyName == STORAGE_ENCRYPTION_KEYS_PROPERTY )
    {
        aAny <<= m_aStorageEncryptionKeys;
        return aAny;
    }
    else
        throw beans::UnknownPropertyException(THROW_WHERE );
}

void ZipPackageStream::setSize ( const sal_Int64 nNewSize )
{
    if ( aEntry.nCompressedSize != nNewSize )
        aEntry.nMethod = DEFLATED;
    aEntry.nSize = nNewSize;
}
OUString ZipPackageStream::getImplementationName()
    throw ( RuntimeException, std::exception )
{
    return OUString ("ZipPackageStream");
}

Sequence< OUString > ZipPackageStream::getSupportedServiceNames()
    throw ( RuntimeException, std::exception )
{
    Sequence< OUString > aNames( 1 );
    aNames[0] = "com.sun.star.packages.PackageStream";
    return aNames;
}

sal_Bool SAL_CALL ZipPackageStream::supportsService( OUString const & rServiceName )
    throw ( RuntimeException, std::exception )
{
    return cppu::supportsService(this, rServiceName);
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */