summaryrefslogtreecommitdiff
path: root/xmlsecurity/source/helper/xsecctl.cxx
blob: d4467a929e8fb62571aaae5a5465e5f8341e6346 (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
/* -*- 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 "xsecctl.hxx"
#include <algorithm>
#include <initializer_list>
#include <tools/debug.hxx>

#include <com/sun/star/xml/crypto/sax/ElementMarkPriority.hpp>
#include <com/sun/star/xml/crypto/sax/XReferenceResolvedBroadcaster.hpp>
#include <com/sun/star/xml/crypto/sax/XMissionTaker.hpp>
#include <com/sun/star/xml/crypto/sax/XReferenceCollector.hpp>
#include <com/sun/star/xml/crypto/sax/XSAXEventKeeperStatusChangeBroadcaster.hpp>
#include <com/sun/star/xml/crypto/SecurityOperationStatus.hpp>
#include <com/sun/star/embed/XHierarchicalStorageAccess.hpp>
#include <com/sun/star/embed/ElementModes.hpp>
#include <com/sun/star/beans/StringPair.hpp>

#include <xmloff/attrlist.hxx>
#include <rtl/math.hxx>
#include <rtl/ref.hxx>
#include <unotools/datetime.hxx>
#include <comphelper/ofopxmlhelper.hxx>
#include <sax/tools/converter.hxx>
#include <ooxmlsecexporter.hxx>

namespace cssu = com::sun::star::uno;
namespace cssl = com::sun::star::lang;
namespace cssxc = com::sun::star::xml::crypto;
namespace cssxs = com::sun::star::xml::sax;
using namespace com::sun::star;

/* bridge component names */
#define XMLSIGNATURE_COMPONENT "com.sun.star.xml.crypto.XMLSignature"
#define XMLDOCUMENTWRAPPER_COMPONENT "com.sun.star.xml.wrapper.XMLDocumentWrapper"

/* xml security framework components */
#define SAXEVENTKEEPER_COMPONENT "com.sun.star.xml.crypto.sax.SAXEventKeeper"

XSecController::XSecController( const cssu::Reference<cssu::XComponentContext>& rxCtx )
    : mxCtx(rxCtx)
    , m_nNextSecurityId(1)
    , m_bIsPreviousNodeInitializable(false)
    , m_bIsSAXEventKeeperConnected(false)
    , m_bIsCollectingElement(false)
    , m_bIsBlocking(false)
    , m_eStatusOfSecurityComponents(InitializationState::UNINITIALIZED)
    , m_bIsSAXEventKeeperSticky(false)
    , m_nReservedSignatureId(0)
    , m_bVerifyCurrentSignature(false)
{
}

XSecController::~XSecController()
{
}


/*
 * private methods
 */
int XSecController::findSignatureInfor( sal_Int32 nSecurityId) const
/****** XSecController/findSignatureInfor *************************************
 *
 *   NAME
 *  findSignatureInfor -- find SignatureInformation struct for a particular
 *                        signature
 *
 *   SYNOPSIS
 *  index = findSignatureInfor( nSecurityId );
 *
 *   INPUTS
 *  nSecurityId - the signature's id
 *
 *   RESULT
 *  index - the index of the signature, or -1 when no such signature
 *          existing
 ******************************************************************************/
{
    int i;
    int size = m_vInternalSignatureInformations.size();

    for (i=0; i<size; ++i)
    {
        if (m_vInternalSignatureInformations[i].signatureInfor.nSecurityId == nSecurityId)
        {
            return i;
        }
    }

    return -1;
}

void XSecController::createXSecComponent( )
/****** XSecController/createXSecComponent ************************************
 *
 *   NAME
 *  bResult = createXSecComponent -- creates xml security components
 *
 *   FUNCTION
 *  Creates xml security components, including:
 *  1. an xml signature bridge component ( Java based or C based)
 *  2. an XMLDocumentWrapper component ( Java based or C based)
 *  3. a SAXEventKeeper component
 ******************************************************************************/
{
    OUString sSAXEventKeeper( SAXEVENTKEEPER_COMPONENT );
    OUString sXMLSignature( XMLSIGNATURE_COMPONENT );
    OUString sXMLDocument( XMLDOCUMENTWRAPPER_COMPONENT );

    /*
     * marks all security components are not available.
     */
    m_eStatusOfSecurityComponents = InitializationState::FAILTOINITIALIZED;
    m_xXMLSignature = nullptr;
    m_xXMLDocumentWrapper = nullptr;
    m_xSAXEventKeeper = nullptr;

    cssu::Reference< cssl::XMultiComponentFactory > xMCF( mxCtx->getServiceManager() );

    m_xXMLSignature.set(
        xMCF->createInstanceWithContext( sXMLSignature, mxCtx ),
        cssu::UNO_QUERY );

    bool bSuccess = m_xXMLSignature.is();
    if ( bSuccess )
    /*
     * XMLSignature created successfully.
     */
    {
        m_xXMLDocumentWrapper.set(
            xMCF->createInstanceWithContext( sXMLDocument, mxCtx ),
            cssu::UNO_QUERY );
    }

    bSuccess &= m_xXMLDocumentWrapper.is();
    if ( bSuccess )
    /*
     * XMLDocumentWrapper created successfully.
     */
    {
        m_xSAXEventKeeper.set(
            xMCF->createInstanceWithContext( sSAXEventKeeper, mxCtx ),
            cssu::UNO_QUERY );
    }

    bSuccess &= m_xSAXEventKeeper.is();

    if (bSuccess)
    /*
     * SAXEventKeeper created successfully.
     */
    {
        cssu::Reference< cssl::XInitialization > xInitialization(m_xSAXEventKeeper,  cssu::UNO_QUERY);

        cssu::Sequence <cssu::Any> arg(1);
        arg[0] = cssu::makeAny(m_xXMLDocumentWrapper);
        xInitialization->initialize(arg);

        cssu::Reference<cssxc::sax::XSAXEventKeeperStatusChangeBroadcaster>
            xSAXEventKeeperStatusChangeBroadcaster(m_xSAXEventKeeper, cssu::UNO_QUERY);
        cssu::Reference< cssxc::sax::XSAXEventKeeperStatusChangeListener >
            xStatusChangeListener = this;

        xSAXEventKeeperStatusChangeBroadcaster
            ->addSAXEventKeeperStatusChangeListener( xStatusChangeListener );

        m_eStatusOfSecurityComponents = InitializationState::INITIALIZED;
    }
}

bool XSecController::chainOn( bool bRetrievingLastEvent )
/****** XSecController/chainOn ************************************************
 *
 *   NAME
 *  chainOn -- tries to connect the SAXEventKeeper with the SAX chain.
 *
 *   SYNOPSIS
 *  bJustChainingOn = chainOn( bRetrievingLastEvent );
 *
 *   FUNCTION
 *  First, checks whether the SAXEventKeeper is on the SAX chain. If not,
 *  creates xml security components, and chains the SAXEventKeeper into
 *  the SAX chain.
 *  Before being chained in, the SAXEventKeeper needs to receive all
 *  missed key SAX events, which can promise the DOM tree bufferred by the
 *  SAXEventKeeper has the same structure with the original document.
 *
 *   INPUTS
 *  bRetrievingLastEvent - whether to retrieve the last key SAX event from
 *                         the ElementStackKeeper.
 *
 *   RESULT
 *  bJustChainingOn - whether the SAXEventKeeper is just chained into the
 *                    SAX chain.
 *
 *   NOTES
 *  Sometimes, the last key SAX event can't be transferred to the
 *  SAXEventKeeper together.
 *  For instance, at the time an referenced element is detected, the
 *  startElement event has already been reserved by the ElementStackKeeper.
 *  Meanwhile, an ElementCollector needs to be created before the
 *  SAXEventKeeper receives that startElement event.
 *  So for the SAXEventKeeper, it needs to receive all missed key SAX
 *  events except that startElement event, then adds a new
 *  ElementCollector, then receives that startElement event.
 ******************************************************************************/
{
    bool rc = false;

    if (!m_bIsSAXEventKeeperSticky && !m_bIsSAXEventKeeperConnected)
    {
        if ( m_eStatusOfSecurityComponents == InitializationState::UNINITIALIZED )
        {
            createXSecComponent();
        }

        if ( m_eStatusOfSecurityComponents == InitializationState::INITIALIZED )
        /*
         * if all security components are ready, chains on the SAXEventKeeper
         */
        {
            /*
             * disconnect the SAXEventKeeper with its current output handler,
             * to make sure no SAX event is forwarded during the connecting
             * phase.
             */
            m_xSAXEventKeeper->setNextHandler( nullptr );

            cssu::Reference< cssxs::XDocumentHandler > xSEKHandler(m_xSAXEventKeeper, cssu::UNO_QUERY);

            /*
             * connects the previous document handler on the SAX chain
             */
            if ( m_xPreviousNodeOnSAXChain.is() )
            {
                if ( m_bIsPreviousNodeInitializable )
                {
                    cssu::Reference< cssl::XInitialization > xInitialization
                        (m_xPreviousNodeOnSAXChain, cssu::UNO_QUERY);

                    cssu::Sequence<cssu::Any> aArgs( 1 );
                    aArgs[0] <<= xSEKHandler;
                    xInitialization->initialize(aArgs);
                }
                else
                {
                    cssu::Reference< cssxs::XParser > xParser
                        (m_xPreviousNodeOnSAXChain, cssu::UNO_QUERY);
                    xParser->setDocumentHandler( xSEKHandler );
                }
            }

            /*
             * get missed key SAX events
             */
            if (m_xElementStackKeeper.is())
            {
                m_xElementStackKeeper->retrieve(xSEKHandler, bRetrievingLastEvent);

                /*
                 * now the ElementStackKeeper can stop its work, because the
                 * SAXEventKeeper is on the SAX chain, no SAX events will be
                 * missed.
                 */
                m_xElementStackKeeper->stop();
            }

            /*
             * connects the next document handler on the SAX chain
             */
            m_xSAXEventKeeper->setNextHandler( m_xNextNodeOnSAXChain );

            m_bIsSAXEventKeeperConnected = true;

            rc = true;
        }
    }

    return rc;
}

void XSecController::chainOff()
/****** XSecController/chainOff ***********************************************
 *
 *   NAME
 *  chainOff -- disconnects the SAXEventKeeper from the SAX chain.
 ******************************************************************************/
{
    if (!m_bIsSAXEventKeeperSticky )
    {
        if (m_bIsSAXEventKeeperConnected)
        {
            m_xSAXEventKeeper->setNextHandler( nullptr );

            if ( m_xPreviousNodeOnSAXChain.is() )
            {
                if ( m_bIsPreviousNodeInitializable )
                {
                    cssu::Reference< cssl::XInitialization > xInitialization
                        (m_xPreviousNodeOnSAXChain, cssu::UNO_QUERY);

                    cssu::Sequence<cssu::Any> aArgs( 1 );
                    aArgs[0] <<= m_xNextNodeOnSAXChain;
                    xInitialization->initialize(aArgs);
                }
                else
                {
                    cssu::Reference< cssxs::XParser > xParser(m_xPreviousNodeOnSAXChain, cssu::UNO_QUERY);
                    xParser->setDocumentHandler( m_xNextNodeOnSAXChain );
                }
            }

            if (m_xElementStackKeeper.is())
            {
                /*
                 * start the ElementStackKeeper to reserve any possible
                 * missed key SAX events
                 */
                m_xElementStackKeeper->start();
            }

            m_bIsSAXEventKeeperConnected = false;
        }
    }
}

void XSecController::checkChainingStatus()
/****** XSecController/checkChainingStatus ************************************
 *
 *   NAME
 *  checkChainingStatus -- connects or disconnects the SAXEventKeeper
 *  according to the current situation.
 *
 *   SYNOPSIS
 *  checkChainingStatus( );
 *
 *   FUNCTION
 *  The SAXEventKeeper is chained into the SAX chain, when:
 *  1. some element is being collected, or
 *  2. the SAX event stream is blocking.
 *  Otherwise, chain off the SAXEventKeeper.
 ******************************************************************************/
{
    if ( m_bIsCollectingElement || m_bIsBlocking )
    {
        chainOn(true);
    }
    else
    {
        chainOff();
    }
}

void XSecController::initializeSAXChain()
/****** XSecController/initializeSAXChain *************************************
 *
 *   NAME
 *  initializeSAXChain -- initializes the SAX chain according to the
 *  current setting.
 *
 *   FUNCTION
 *  Initializes the SAX chain, if the SAXEventKeeper is asked to be always
 *  on the SAX chain, chains it on. Otherwise, starts the
 *  ElementStackKeeper to reserve key SAX events.
 ******************************************************************************/
{
    m_bIsSAXEventKeeperConnected = false;
    m_bIsCollectingElement = false;
    m_bIsBlocking = false;

    if (m_xElementStackKeeper.is())
    {
        /*
         * starts the ElementStackKeeper
         */
        m_xElementStackKeeper->start();
    }

    chainOff();
}

cssu::Reference< css::io::XInputStream >
    XSecController::getObjectInputStream( const OUString& objectURL )
/****** XSecController/getObjectInputStream ************************************
 *
 *   NAME
 *  getObjectInputStream -- get a XInputStream interface from a SotStorage
 *
 *   SYNOPSIS
 *  xInputStream = getObjectInputStream( objectURL );
 *
 *   INPUTS
 *  objectURL - the object uri
 *
 *   RESULT
 *  xInputStream - the XInputStream interface
 ******************************************************************************/
{
        cssu::Reference< css::io::XInputStream > xObjectInputStream;

    SAL_WARN_IF( !m_xUriBinding.is(), "xmlsecurity.helper", "Need XUriBinding!" );

    xObjectInputStream = m_xUriBinding->getUriBinding(objectURL);

    return xObjectInputStream;
}

/*
 * public methods
 */

sal_Int32 XSecController::getNewSecurityId(  )
{
    sal_Int32 nId = m_nNextSecurityId;
    m_nNextSecurityId++;
    return nId;
}

void XSecController::startMission(
    const cssu::Reference< cssxc::XUriBinding >& xUriBinding,
    const cssu::Reference< cssxc::XXMLSecurityContext >& xSecurityContext )
/****** XSecController/startMission *******************************************
 *
 *   NAME
 *  startMission -- starts a new security mission.
 *
 *   FUNCTION
 *  get ready for a new mission.
 *
 *   INPUTS
 *  xUriBinding       - the Uri binding that provide maps between uris and
 *                          XInputStreams
 *  xSecurityContext  - the security context component which can provide
 *                      cryptoken
 ******************************************************************************/
{
    m_xUriBinding = xUriBinding;

    m_eStatusOfSecurityComponents = InitializationState::UNINITIALIZED;
    m_xSecurityContext = xSecurityContext;

    m_vInternalSignatureInformations.clear();

    m_bVerifyCurrentSignature = false;
}

void XSecController::setSAXChainConnector(
    const cssu::Reference< cssl::XInitialization >& xInitialization,
    const cssu::Reference< cssxs::XDocumentHandler >& xDocumentHandler,
    const cssu::Reference< cssxc::sax::XElementStackKeeper >& xElementStackKeeper)
/****** XSecController/setSAXChainConnector ***********************************
 *
 *   NAME
 *  setSAXChainConnector -- configures the components which will
 *  collaborate with the SAXEventKeeper on the SAX chain.
 *
 *   SYNOPSIS
 *  setSAXChainConnector( xInitialization,
 *                        xDocumentHandler,
 *                        xElementStackKeeper );
 *
 *   INPUTS
 *  xInitialization     - the previous node on the SAX chain
 *  xDocumentHandler    - the next node on the SAX chain
 *  xElementStackKeeper - the ElementStackKeeper component which reserves
 *                        missed key SAX events for the SAXEventKeeper
 ******************************************************************************/
{
    m_bIsPreviousNodeInitializable = true;
    m_xPreviousNodeOnSAXChain = xInitialization;
    m_xNextNodeOnSAXChain = xDocumentHandler;
    m_xElementStackKeeper = xElementStackKeeper;

    initializeSAXChain( );
}

void XSecController::clearSAXChainConnector()
/****** XSecController/clearSAXChainConnector *********************************
 *
 *   NAME
 *  clearSAXChainConnector -- resets the collaborating components.
 ******************************************************************************/
{
    /*
     * before reseting, if the ElementStackKeeper has kept something, then
     * those kept key SAX events must be transferred to the SAXEventKeeper
     * first. This is to promise the next node to the SAXEventKeeper on the
     * SAX chain always receives a complete document.
     */
    if (m_xElementStackKeeper.is() && m_xSAXEventKeeper.is())
    {
        cssu::Reference< cssxs::XDocumentHandler > xSEKHandler(m_xSAXEventKeeper, cssu::UNO_QUERY);
        m_xElementStackKeeper->retrieve(xSEKHandler, true);
    }

    chainOff();

    m_xPreviousNodeOnSAXChain = nullptr;
    m_xNextNodeOnSAXChain = nullptr;
    m_xElementStackKeeper = nullptr;
}

void XSecController::endMission()
/****** XSecController/endMission *********************************************
 *
 *   NAME
 *  endMission -- forces to end all missions
 *
 *   FUNCTION
 *  Deletes all signature information and forces all missions to an end.
 ******************************************************************************/
{
    sal_Int32 size = m_vInternalSignatureInformations.size();

    for (int i=0; i<size; ++i)
    {
        if ( m_eStatusOfSecurityComponents == InitializationState::INITIALIZED )
        /*
         * ResolvedListener only exist when the security components are created.
         */
        {
            cssu::Reference< cssxc::sax::XMissionTaker > xMissionTaker
                ( m_vInternalSignatureInformations[i].xReferenceResolvedListener, cssu::UNO_QUERY );

            /*
             * asks the SignatureCreator/SignatureVerifier to release
             * all resources it uses.
             */
            xMissionTaker->endMission();
        }
    }

    m_xUriBinding = nullptr;
    m_xSecurityContext = nullptr;

    /*
     * free the status change listener reference to this object
     */
    if (m_xSAXEventKeeper.is())
    {
        cssu::Reference<cssxc::sax::XSAXEventKeeperStatusChangeBroadcaster>
            xSAXEventKeeperStatusChangeBroadcaster(m_xSAXEventKeeper, cssu::UNO_QUERY);
        xSAXEventKeeperStatusChangeBroadcaster
            ->addSAXEventKeeperStatusChangeListener( nullptr );
    }
}

void XSecController::exportSignature(
    const cssu::Reference<cssxs::XDocumentHandler>& xDocumentHandler,
    const SignatureInformation& signatureInfo )
/****** XSecController/exportSignature ****************************************
 *
 *   NAME
 *  exportSignature -- export a signature structure to an XDocumentHandler
 *
 *   SYNOPSIS
 *  exportSignature( xDocumentHandler, signatureInfo);
 *
 *   INPUTS
 *  xDocumentHandler    - the document handler to receive the signature
 *  signatureInfo       - signature to be exported
 ******************************************************************************/
{
    const SignatureReferenceInformations& vReferenceInfors = signatureInfo.vSignatureReferenceInfors;
    SvXMLAttributeList *pAttributeList;

    /*
     * Write Signature element
     */
    pAttributeList = new SvXMLAttributeList();
    pAttributeList->AddAttribute(
        "xmlns",
        NS_XMLDSIG);

    if (!signatureInfo.ouSignatureId.isEmpty())
    {
        pAttributeList->AddAttribute(
            "Id",
            OUString(signatureInfo.ouSignatureId));
    }

    xDocumentHandler->startElement( "Signature", cssu::Reference< cssxs::XAttributeList > (pAttributeList));
    {
        /* Write SignedInfo element */
        xDocumentHandler->startElement(
            "SignedInfo",
            cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
        {
            /* Write CanonicalizationMethod element */
            pAttributeList = new SvXMLAttributeList();
            pAttributeList->AddAttribute(
                "Algorithm",
                ALGO_C14N);
            xDocumentHandler->startElement( "CanonicalizationMethod", cssu::Reference< cssxs::XAttributeList > (pAttributeList) );
            xDocumentHandler->endElement( "CanonicalizationMethod" );

            /* Write SignatureMethod element */
            pAttributeList = new SvXMLAttributeList();
            pAttributeList->AddAttribute(
                "Algorithm",
                ALGO_RSASHA1);
            xDocumentHandler->startElement( "SignatureMethod", cssu::Reference< cssxs::XAttributeList > (pAttributeList) );
            xDocumentHandler->endElement( "SignatureMethod" );

            /* Write Reference element */
            int j;
            int refNum = vReferenceInfors.size();

            for(j=0; j<refNum; ++j)
            {
                const SignatureReferenceInformation& refInfor = vReferenceInfors[j];

                pAttributeList = new SvXMLAttributeList();
                if ( refInfor.nType != SignatureReferenceType::SAMEDOCUMENT )
                /*
                 * stream reference
                 */
                {
                    pAttributeList->AddAttribute(
                        "URI",
                        refInfor.ouURI);
                }
                else
                /*
                 * same-document reference
                 */
                {
                    pAttributeList->AddAttribute(
                        "URI",
                        "#" + refInfor.ouURI);
                }

                xDocumentHandler->startElement( "Reference", cssu::Reference< cssxs::XAttributeList > (pAttributeList) );
                {
                    /* Write Transforms element */
                    if (refInfor.nType == SignatureReferenceType::XMLSTREAM)
                    /*
                     * xml stream, so c14n transform is needed
                     */
                    {
                        xDocumentHandler->startElement(
                            "Transforms",
                            cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                        {
                            pAttributeList = new SvXMLAttributeList();
                            pAttributeList->AddAttribute(
                                "Algorithm",
                                ALGO_C14N);
                            xDocumentHandler->startElement(
                                "Transform",
                                cssu::Reference< cssxs::XAttributeList > (pAttributeList) );
                            xDocumentHandler->endElement( "Transform" );
                        }
                        xDocumentHandler->endElement( "Transforms" );
                    }

                    /* Write DigestMethod element */
                    pAttributeList = new SvXMLAttributeList();
                    pAttributeList->AddAttribute(
                        "Algorithm",
                        ALGO_XMLDSIGSHA1);
                    xDocumentHandler->startElement(
                        "DigestMethod",
                        cssu::Reference< cssxs::XAttributeList > (pAttributeList) );
                    xDocumentHandler->endElement( "DigestMethod" );

                    /* Write DigestValue element */
                    xDocumentHandler->startElement(
                        "DigestValue",
                        cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                    xDocumentHandler->characters( refInfor.ouDigestValue );
                    xDocumentHandler->endElement( "DigestValue" );
                }
                xDocumentHandler->endElement( "Reference" );
            }
        }
        xDocumentHandler->endElement( "SignedInfo" );

        /* Write SignatureValue element */
        xDocumentHandler->startElement(
            "SignatureValue",
            cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
        xDocumentHandler->characters( signatureInfo.ouSignatureValue );
        xDocumentHandler->endElement( "SignatureValue" );

        /* Write KeyInfo element */
        xDocumentHandler->startElement(
            "KeyInfo",
            cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
        {
            /* Write X509Data element */
            xDocumentHandler->startElement(
                "X509Data",
                cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
            {
                /* Write X509IssuerSerial element */
                xDocumentHandler->startElement(
                    "X509IssuerSerial",
                    cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                {
                    /* Write X509IssuerName element */
                    xDocumentHandler->startElement(
                        "X509IssuerName",
                        cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                    xDocumentHandler->characters( signatureInfo.ouX509IssuerName );
                    xDocumentHandler->endElement( "X509IssuerName" );

                    /* Write X509SerialNumber element */
                    xDocumentHandler->startElement(
                        "X509SerialNumber",
                        cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                    xDocumentHandler->characters( signatureInfo.ouX509SerialNumber );
                    xDocumentHandler->endElement( "X509SerialNumber" );
                }
                xDocumentHandler->endElement( "X509IssuerSerial" );

                /* Write X509Certificate element */
                if (!signatureInfo.ouX509Certificate.isEmpty())
                {
                    xDocumentHandler->startElement(
                        "X509Certificate",
                        cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
                    xDocumentHandler->characters( signatureInfo.ouX509Certificate );
                    xDocumentHandler->endElement( "X509Certificate" );
                }
            }
            xDocumentHandler->endElement( "X509Data" );
        }
        xDocumentHandler->endElement( "KeyInfo" );

        /* Write Object element */
        xDocumentHandler->startElement(
            "Object",
            cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
        {
            /* Write SignatureProperties element */
            xDocumentHandler->startElement(
                "SignatureProperties",
                cssu::Reference< cssxs::XAttributeList > (new SvXMLAttributeList()));
            {
                /* Write SignatureProperty element */
                pAttributeList = new SvXMLAttributeList();
                pAttributeList->AddAttribute(
                    "Id",
                    signatureInfo.ouPropertyId);
                pAttributeList->AddAttribute(
                    "Target",
                    "#" + signatureInfo.ouSignatureId);
                xDocumentHandler->startElement(
                    "SignatureProperty",
                    cssu::Reference< cssxs::XAttributeList > (pAttributeList));
                {
                    /* Write timestamp element */

                    pAttributeList = new SvXMLAttributeList();
                    pAttributeList->AddAttribute(
                        "xmlns:dc",
                        NS_DC);

                    xDocumentHandler->startElement(
                        "dc:date",
                        cssu::Reference< cssxs::XAttributeList > (pAttributeList));

                    OUStringBuffer buffer;
                    //If the xml signature was already contained in the document,
                    //then we use the original date and time string, rather then the
                    //converted one. This avoids writing a different string due to
                    //e.g. rounding issues and thus breaking the signature.
                    if (!signatureInfo.ouDateTime.isEmpty())
                        buffer = signatureInfo.ouDateTime;
                    else
                    {
                        buffer = utl::toISO8601(signatureInfo.stDateTime);
                    }
                    xDocumentHandler->characters( buffer.makeStringAndClear() );

                    xDocumentHandler->endElement(
                        "dc:date");
                }
                xDocumentHandler->endElement( "SignatureProperty" );
            }

            // Write signature description.
            if (!signatureInfo.ouDescription.isEmpty())
            {
                // SignatureProperty element.
                pAttributeList = new SvXMLAttributeList();
                pAttributeList->AddAttribute("Id", signatureInfo.ouDescriptionPropertyId);
                pAttributeList->AddAttribute("Target", "#" + signatureInfo.ouSignatureId);
                xDocumentHandler->startElement("SignatureProperty", uno::Reference<xml::sax::XAttributeList>(pAttributeList));

                {
                    // Description element.
                    pAttributeList = new SvXMLAttributeList();
                    pAttributeList->AddAttribute("xmlns:dc", NS_DC);

                    xDocumentHandler->startElement("dc:description", uno::Reference<xml::sax::XAttributeList>(pAttributeList));
                    xDocumentHandler->characters(signatureInfo.ouDescription);
                    xDocumentHandler->endElement("dc:description");
                }

                xDocumentHandler->endElement("SignatureProperty");
            }

            xDocumentHandler->endElement( "SignatureProperties" );
        }
        xDocumentHandler->endElement( "Object" );
    }
    xDocumentHandler->endElement( "Signature" );
}

void XSecController::exportOOXMLSignature(const uno::Reference<embed::XStorage>& xRootStorage, const uno::Reference<xml::sax::XDocumentHandler>& xDocumentHandler, const SignatureInformation& rInformation)
{
    OOXMLSecExporter aExporter(mxCtx, xRootStorage, xDocumentHandler, rInformation);
    aExporter.writeSignature();
}

SignatureInformation XSecController::getSignatureInformation( sal_Int32 nSecurityId ) const
{
    SignatureInformation aInf( 0 );
    int nIndex = findSignatureInfor(nSecurityId);
    SAL_WARN_IF( nIndex == -1, "xmlsecurity.helper", "getSignatureInformation - SecurityId is invalid!" );
    if ( nIndex != -1)
    {
        aInf = m_vInternalSignatureInformations[nIndex].signatureInfor;
    }
    return aInf;
}

SignatureInformations XSecController::getSignatureInformations() const
{
    SignatureInformations vInfors;
    int sigNum = m_vInternalSignatureInformations.size();

    for (int i=0; i<sigNum; ++i)
    {
        SignatureInformation si = m_vInternalSignatureInformations[i].signatureInfor;
        vInfors.push_back(si);
    }

    return vInfors;
}

/*
 * XSecurityController
 *
 * no methods
 */

/*
 * XSAXEventKeeperStatusChangeListener
 */

void SAL_CALL XSecController::blockingStatusChanged( sal_Bool isBlocking )
    throw (cssu::RuntimeException, std::exception)
{
    this->m_bIsBlocking = isBlocking;
    checkChainingStatus();
}

void SAL_CALL XSecController::collectionStatusChanged(
    sal_Bool isInsideCollectedElement )
    throw (cssu::RuntimeException, std::exception)
{
    this->m_bIsCollectingElement = isInsideCollectedElement;
    checkChainingStatus();
}

void SAL_CALL XSecController::bufferStatusChanged( sal_Bool /*isBufferEmpty*/)
    throw (cssu::RuntimeException, std::exception)
{

}

/*
 * XSignatureCreationResultListener
 */
void SAL_CALL XSecController::signatureCreated( sal_Int32 securityId, css::xml::crypto::SecurityOperationStatus nResult )
        throw (css::uno::RuntimeException, std::exception)
{
    int index = findSignatureInfor(securityId);
    assert(index != -1 && "Signature Not Found!");
    SignatureInformation& signatureInfor = m_vInternalSignatureInformations.at(index).signatureInfor;
    signatureInfor.nStatus = nResult;
}

/*
 * XSignatureVerifyResultListener
 */
void SAL_CALL XSecController::signatureVerified( sal_Int32 securityId, css::xml::crypto::SecurityOperationStatus nResult )
        throw (css::uno::RuntimeException, std::exception)
{
    int index = findSignatureInfor(securityId);
    assert(index != -1 && "Signature Not Found!");
    SignatureInformation& signatureInfor = m_vInternalSignatureInformations.at(index).signatureInfor;
    signatureInfor.nStatus = nResult;
}

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