summaryrefslogtreecommitdiff
path: root/extensions/source/update/check/updatecheckconfig.cxx
blob: 0db924341208577c14bf246d57bc012fffe7813f (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
/* -*- 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 "updatecheckconfig.hxx"
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/configuration/theDefaultProvider.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <osl/security.hxx>
#include <osl/time.h>
#include <osl/file.hxx>
#include <sal/macros.h>
#include <o3tl/char16_t2wchar_t.hxx>

#ifdef _WIN32
#include <objbase.h>
#include <shlobj.h>
#endif

namespace container = com::sun::star::container ;
namespace beans = com::sun::star::beans ;
namespace lang = com::sun::star::lang ;
namespace util = com::sun::star::util ;
namespace uno = com::sun::star::uno ;

#define LAST_CHECK              "LastCheck"
#define UPDATE_VERSION          "UpdateVersion"
#define UPDATE_BUILDID          "UpdateBuildId"
#define UPDATE_DESCRIPTION      "UpdateDescription"
#define DOWNLOAD_URL            "DownloadURL"
#define IS_DIRECT_DOWNLOAD      "IsDirectDownload"
#define OLD_VERSION             "UpdateFoundFor"
#define AUTOCHECK_ENABLED       "AutoCheckEnabled"
#define AUTODOWNLOAD_ENABLED    "AutoDownloadEnabled"
#define CHECK_INTERVAL          "CheckInterval"
#define LOCAL_FILE              "LocalFile"
#define DOWNLOAD_SIZE           "DownloadSize"
#define DOWNLOAD_PAUSED         "DownloadPaused"
#define DOWNLOAD_DESTINATION    "DownloadDestination"
#define RELEASE_NOTE            "ReleaseNote"

#define PROPERTY_VERSION        "Version"

static const char * const aUpdateEntryProperties[] = {
    UPDATE_VERSION,
    UPDATE_BUILDID,
    UPDATE_DESCRIPTION,
    DOWNLOAD_URL,
    IS_DIRECT_DOWNLOAD,
    RELEASE_NOTE"1",
    RELEASE_NOTE"2",
    RELEASE_NOTE"3",
    RELEASE_NOTE"4",
    RELEASE_NOTE"5",
    OLD_VERSION
};

static const sal_uInt32 nUpdateEntryProperties = SAL_N_ELEMENTS(aUpdateEntryProperties);

NamedValueByNameAccess::~NamedValueByNameAccess()
{
}

css::uno::Any NamedValueByNameAccess::getValue(const char * pName)
{
    const sal_Int32 nLen = m_rValues.getLength();
    for( sal_Int32 n=0; n < nLen; ++n )
    {
        if( m_rValues[n].Name.equalsAscii( pName ) )
            return m_rValues[n].Value;
    }
    return css::uno::Any();
}

bool
UpdateCheckROModel::isAutoCheckEnabled() const
{
    return m_aNameAccess.getValue(AUTOCHECK_ENABLED).get<bool>();
}

bool
UpdateCheckROModel::isDownloadPaused() const
{
    return m_aNameAccess.getValue(DOWNLOAD_PAUSED).get<bool>();
}

OUString
UpdateCheckROModel::getStringValue(const char * pStr) const
{
    uno::Any aAny( m_aNameAccess.getValue(pStr) );
    OUString aRet;

    aAny >>= aRet;

    return aRet;
}

OUString UpdateCheckROModel::getLocalFileName() const
{
    return getStringValue(LOCAL_FILE);
};

sal_Int64 UpdateCheckROModel::getDownloadSize() const
{
    uno::Any aAny( m_aNameAccess.getValue(DOWNLOAD_SIZE) );
    sal_Int64 nRet = -1;

    aAny >>= nRet;
    return nRet;
};

OUString
UpdateCheckROModel::getUpdateEntryVersion() const
{
    return getStringValue(OLD_VERSION);
}

void
UpdateCheckROModel::getUpdateEntry(UpdateInfo& rInfo) const
{
    rInfo.BuildId = getStringValue(UPDATE_BUILDID);
    rInfo.Version = getStringValue(UPDATE_VERSION);
    rInfo.Description = getStringValue(UPDATE_DESCRIPTION);

    bool isDirectDownload = false;
    m_aNameAccess.getValue(IS_DIRECT_DOWNLOAD) >>= isDirectDownload;

    rInfo.Sources.push_back( DownloadSource( isDirectDownload, getStringValue(DOWNLOAD_URL) ) );

    for(sal_Int32 n=1; n < 6; ++n )
    {
        OUString aUStr = getStringValue(
            OString(OStringLiteral(RELEASE_NOTE) + OString::number(n)).getStr());
        if( !aUStr.isEmpty() )
            rInfo.ReleaseNotes.push_back(ReleaseNote(static_cast<sal_Int8>(n), aUStr));
    }
}

OUString UpdateCheckConfig::getDownloadsDirectory()
{
    OUString aRet;

#ifdef _WIN32
    PWSTR szPath;

    if (SHGetKnownFolderPath(FOLDERID_Downloads, 0, nullptr, &szPath) == S_OK)
    {
        aRet = o3tl::toU(szPath);
        CoTaskMemFree(szPath);
        osl::FileBase::getFileURLFromSystemPath( aRet, aRet );
    }
#else
    // This should become a desktop specific setting in some system backend ..
    OUString aHomeDir;
    osl::Security().getHomeDir( aHomeDir );
    aRet = aHomeDir + "/Desktop";

    // Set path to home directory when there is no /Desktop directory
    osl::Directory aDocumentsDir( aRet );
    if( osl::FileBase::E_None != aDocumentsDir.open() )
        aRet = aHomeDir;
#endif

    return aRet;
}

OUString UpdateCheckConfig::getAllUsersDirectory()
{
    OUString aRet;

#ifdef _WIN32
    WCHAR szPath[MAX_PATH];

    if (TRUE == SHGetSpecialFolderPathW(nullptr, szPath, CSIDL_COMMON_DOCUMENTS, true))
    {
        aRet = o3tl::toU(szPath);
        osl::FileBase::getFileURLFromSystemPath( aRet, aRet );
    }
#else
    osl::FileBase::getTempDirURL(aRet);
#endif

    return aRet;
}

UpdateCheckConfig::UpdateCheckConfig( const uno::Reference<container::XNameContainer>& xContainer,
                                      const uno::Reference<container::XNameContainer>& xAvailableUpdates,
                                      const uno::Reference<container::XNameContainer>& xIgnoredUpdates,
                                      const ::rtl::Reference< UpdateCheckConfigListener >& rListener ) :
    m_xContainer( xContainer ),
    m_xAvailableUpdates( xAvailableUpdates ),
    m_xIgnoredUpdates( xIgnoredUpdates ),
    m_rListener( rListener )
{}

UpdateCheckConfig::~UpdateCheckConfig()
{}

::rtl::Reference< UpdateCheckConfig >
UpdateCheckConfig::get(
    const uno::Reference<uno::XComponentContext>& xContext,
    const ::rtl::Reference< UpdateCheckConfigListener >& rListener)
{
    uno::Reference< lang::XMultiServiceFactory > xConfigProvider(
        css::configuration::theDefaultProvider::get( xContext ) );

    beans::PropertyValue aProperty;
    aProperty.Name  = "nodepath";
    aProperty.Value <<= OUString("org.openoffice.Office.Jobs/Jobs/UpdateCheck/Arguments");

    uno::Sequence< uno::Any > aArgumentList( 1 );
    aArgumentList[0] <<= aProperty;

    uno::Reference< container::XNameContainer > xContainer(
        xConfigProvider->createInstanceWithArguments(
            "com.sun.star.configuration.ConfigurationUpdateAccess", aArgumentList ),
        uno::UNO_QUERY_THROW );

    aProperty.Value <<= OUString("/org.openoffice.Office.ExtensionManager/ExtensionUpdateData/IgnoredUpdates");
    aArgumentList[0] <<= aProperty;
    uno::Reference< container::XNameContainer > xIgnoredExt( xConfigProvider->createInstanceWithArguments( "com.sun.star.configuration.ConfigurationUpdateAccess", aArgumentList ), uno::UNO_QUERY_THROW );

    aProperty.Value <<= OUString("/org.openoffice.Office.ExtensionManager/ExtensionUpdateData/AvailableUpdates");
    aArgumentList[0] <<= aProperty;
    uno::Reference< container::XNameContainer > xUpdateAvail( xConfigProvider->createInstanceWithArguments( "com.sun.star.configuration.ConfigurationUpdateAccess", aArgumentList ), uno::UNO_QUERY_THROW );

    return new UpdateCheckConfig( xContainer, xUpdateAvail, xIgnoredExt, rListener );
}

bool
UpdateCheckConfig::isAutoCheckEnabled() const
{
    bool nValue = false;
    const_cast < UpdateCheckConfig *> (this)->getByName( AUTOCHECK_ENABLED ) >>= nValue;
    return nValue;
}

bool
UpdateCheckConfig::isAutoDownloadEnabled() const
{
    bool nValue = false;
    const_cast < UpdateCheckConfig *> (this)->getByName( AUTODOWNLOAD_ENABLED ) >>= nValue;
    return nValue;
}

OUString
UpdateCheckConfig::getUpdateEntryVersion() const
{
    OUString aValue;

    // getByName is defined as non const in XNameAccess
    const_cast < UpdateCheckConfig *> (this)->getByName( OLD_VERSION ) >>= aValue;

    return aValue;
}

sal_Int64
UpdateCheckConfig::getLastChecked() const
{
    sal_Int64 nValue = 0;

    // getByName is defined as non const in XNameAccess
    const_cast < UpdateCheckConfig *> (this)->getByName( LAST_CHECK ) >>= nValue;

    return nValue;
}

sal_Int64
UpdateCheckConfig::getCheckInterval() const
{
    sal_Int64 nValue = 0;

    // getByName is defined as non const in XNameAccess
    const_cast < UpdateCheckConfig *> (this)->getByName( CHECK_INTERVAL ) >>= nValue;

    return nValue;
}

OUString
UpdateCheckConfig::getLocalFileName() const
{
    OUString aName = LOCAL_FILE;
    OUString aRet;

    if( m_xContainer->hasByName(aName) )
        m_xContainer->getByName(aName) >>= aRet;

    return aRet;
}

OUString
UpdateCheckConfig::getDownloadDestination() const
{
    OUString aRet;

    const_cast <UpdateCheckConfig *> (this)->getByName(DOWNLOAD_DESTINATION) >>= aRet;

    return aRet;
}

void
UpdateCheckConfig::storeLocalFileName(const OUString& rLocalFileName, sal_Int64 nFileSize)
{
    const sal_uInt8 nItems = 2;
    const OUString aNameList[nItems] = { OUString(LOCAL_FILE), OUString(DOWNLOAD_SIZE) };
    const uno::Any aValueList[nItems] = { uno::makeAny(rLocalFileName), uno::makeAny(nFileSize) };

    for( sal_uInt8 i=0; i < nItems; ++i )
    {
        if( m_xContainer->hasByName(aNameList[i]) )
            m_xContainer->replaceByName(aNameList[i], aValueList[i]);
        else
            m_xContainer->insertByName(aNameList[i], aValueList[i]);
    }

    commitChanges();
}

void
UpdateCheckConfig::clearLocalFileName()
{
    const sal_uInt8 nItems = 2;
    const OUString aNameList[nItems] = { OUString(LOCAL_FILE), OUString(DOWNLOAD_SIZE) };

    for(const auto & i : aNameList)
    {
        if( m_xContainer->hasByName(i) )
            m_xContainer->removeByName(i);
    }

    commitChanges();
}

void
UpdateCheckConfig::storeDownloadPaused(bool paused)
{
    replaceByName(DOWNLOAD_PAUSED , uno::makeAny(paused));
    commitChanges();
}

void
UpdateCheckConfig::updateLastChecked()
{
    TimeValue systime;
    osl_getSystemTime(&systime);

    sal_Int64 lastCheck = systime.Seconds;

    replaceByName(LAST_CHECK, uno::makeAny(lastCheck));
}

void
UpdateCheckConfig::storeUpdateFound( const UpdateInfo& rInfo, const OUString& aCurrentBuild)

{
    bool autoDownloadEnabled = isAutoDownloadEnabled();

    uno::Any aValues[nUpdateEntryProperties] =
    {
        uno::makeAny(rInfo.Version),
        uno::makeAny(rInfo.BuildId),
        uno::makeAny(rInfo.Description),
        uno::makeAny(rInfo.Sources[0].URL),
        uno::makeAny(rInfo.Sources[0].IsDirect),
        uno::makeAny(getReleaseNote(rInfo, 1, autoDownloadEnabled) ),
        uno::makeAny(getReleaseNote(rInfo, 2, autoDownloadEnabled) ),
        uno::makeAny(getReleaseNote(rInfo, 3, autoDownloadEnabled) ),
        uno::makeAny(getReleaseNote(rInfo, 4, autoDownloadEnabled) ),
        uno::makeAny(getReleaseNote(rInfo, 5, autoDownloadEnabled) ),
        uno::makeAny(aCurrentBuild)
    };

    OUString aName;
    for( sal_uInt32 n=0; n < nUpdateEntryProperties; ++n )
    {
        aName = OUString::createFromAscii(aUpdateEntryProperties[n]);

        if( m_xContainer->hasByName(aName) )
            m_xContainer->replaceByName(aName, aValues[n]);
        else
            m_xContainer->insertByName(aName,aValues[n]);
    }

    commitChanges();
}

void
UpdateCheckConfig::clearUpdateFound()
{
    OUString aName;

    for(const char* aUpdateEntryPropertie : aUpdateEntryProperties)
    {
        aName = OUString::createFromAscii(aUpdateEntryPropertie);

        try {
            if( m_xContainer->hasByName(aName) )
                m_xContainer->removeByName(aName);
        } catch(const lang::WrappedTargetException& ) {
            // Can not remove value, probably in share layer
            OSL_ASSERT(false);
            m_xContainer->replaceByName(aName, uno::makeAny(OUString()));
        }
    }

    /* As we have removed UpdateVersionFound from the shared configuration
     * existing entries in the user layer do not have a oor operation and
     * thus are completely ignored (which also means they can not be removed).
     */

    commitChanges();
}

uno::Sequence< OUString >
UpdateCheckConfig::getServiceNames()
{
    uno::Sequence< OUString > aServiceList { "com.sun.star.setup.UpdateCheckConfig" };
    return aServiceList;
}

OUString
UpdateCheckConfig::getImplName()
{
    return "vnd.sun.UpdateCheckConfig";
}

uno::Type SAL_CALL
UpdateCheckConfig::getElementType()
{
    return m_xContainer->getElementType();
}

sal_Bool SAL_CALL
UpdateCheckConfig::hasElements()
{
    return m_xContainer->hasElements();
}

uno::Any SAL_CALL
UpdateCheckConfig::getByName( const OUString& aName )
{
    uno::Any aValue = m_xContainer->getByName( aName );

    // Provide dynamic default value
    if( aName == DOWNLOAD_DESTINATION )
    {
        OUString aStr;
        aValue >>= aStr;

        if( aStr.isEmpty() )
            aValue <<= getDownloadsDirectory();
    }
    return aValue;
}

uno::Sequence< OUString > SAL_CALL
UpdateCheckConfig::getElementNames()
{
    return m_xContainer->getElementNames();
}

sal_Bool SAL_CALL
UpdateCheckConfig::hasByName( const OUString& aName )
{
    return m_xContainer->hasByName( aName );
}

void SAL_CALL
UpdateCheckConfig::replaceByName( const OUString& aName, const uno::Any& aElement )
{
    return m_xContainer->replaceByName( aName, aElement );
}

// XChangesBatch

void SAL_CALL
UpdateCheckConfig::commitChanges()
{
    uno::Reference< util::XChangesBatch > xChangesBatch(m_xContainer, uno::UNO_QUERY);
    if( xChangesBatch.is() && xChangesBatch->hasPendingChanges() )
    {
        util::ChangesSet aChangesSet = xChangesBatch->getPendingChanges();
        xChangesBatch->commitChanges();

        if( m_rListener.is() )
        {
            const sal_Int32 nChanges = aChangesSet.getLength();
            OUString aString;

            for( sal_Int32 i=0; i<nChanges; ++i )
            {
                aChangesSet[i].Accessor >>= aString;
                if( aString.endsWith(AUTOCHECK_ENABLED "']") )
                {
                    bool bEnabled = false;
                    aChangesSet[i].Element >>= bEnabled;
                    m_rListener->autoCheckStatusChanged(bEnabled);
                }
                else if( aString.endsWith(CHECK_INTERVAL "']") )
                {
                    m_rListener->autoCheckIntervalChanged();
                }
            }
        }
    }

    xChangesBatch.set( m_xAvailableUpdates, uno::UNO_QUERY );
    if( xChangesBatch.is() && xChangesBatch->hasPendingChanges() )
    {
        xChangesBatch->commitChanges();
    }
    xChangesBatch.set( m_xIgnoredUpdates, uno::UNO_QUERY );
    if( xChangesBatch.is() && xChangesBatch->hasPendingChanges() )
    {
        xChangesBatch->commitChanges();
    }
}

sal_Bool SAL_CALL
UpdateCheckConfig::hasPendingChanges(  )
{
    uno::Reference< util::XChangesBatch > xChangesBatch(m_xContainer, uno::UNO_QUERY);
    if( xChangesBatch.is() )
        return xChangesBatch->hasPendingChanges();

    return false;
}

uno::Sequence< util::ElementChange > SAL_CALL
UpdateCheckConfig::getPendingChanges(  )
{
    uno::Reference< util::XChangesBatch > xChangesBatch(m_xContainer, uno::UNO_QUERY);
    if( xChangesBatch.is() )
        return xChangesBatch->getPendingChanges();

    return uno::Sequence< util::ElementChange >();
}

bool UpdateCheckConfig::storeExtensionVersion( const OUString& rExtensionName,
                                               const OUString& rVersion )
{
    bool bNotify = true;

    if ( m_xAvailableUpdates->hasByName( rExtensionName ) )
        uno::Reference< beans::XPropertySet >( m_xAvailableUpdates->getByName( rExtensionName ), uno::UNO_QUERY_THROW )->setPropertyValue( PROPERTY_VERSION, uno::Any( rVersion ) );
    else
    {
        uno::Reference< beans::XPropertySet > elem( uno::Reference< lang::XSingleServiceFactory >( m_xAvailableUpdates, uno::UNO_QUERY_THROW )->createInstance(), uno::UNO_QUERY_THROW );
        elem->setPropertyValue( PROPERTY_VERSION, uno::Any( rVersion ) );
        m_xAvailableUpdates->insertByName( rExtensionName, uno::Any( elem ) );
    }

    if ( m_xIgnoredUpdates->hasByName( rExtensionName ) )
    {
        OUString aIgnoredVersion;
        uno::Any aValue( uno::Reference< beans::XPropertySet >( m_xIgnoredUpdates->getByName( rExtensionName ), uno::UNO_QUERY_THROW )->getPropertyValue( PROPERTY_VERSION ) );
        aValue >>= aIgnoredVersion;
        if ( aIgnoredVersion.isEmpty() ) // no version means ignore all updates
            bNotify = false;
        else if ( aIgnoredVersion == rVersion ) // the user wanted to ignore this update
            bNotify = false;
    }

    commitChanges();

    return bNotify;
}

bool UpdateCheckConfig::checkExtensionVersion( const OUString& rExtensionName,
                                               const OUString& rVersion )
{
    if ( m_xAvailableUpdates->hasByName( rExtensionName ) )
    {
        OUString aStoredVersion;
        uno::Any aValue( uno::Reference< beans::XPropertySet >( m_xAvailableUpdates->getByName( rExtensionName ), uno::UNO_QUERY_THROW )->getPropertyValue( PROPERTY_VERSION ) );
        aValue >>= aStoredVersion;

        if ( m_xIgnoredUpdates->hasByName( rExtensionName ) )
        {
            OUString aIgnoredVersion;
            uno::Any aValue2( uno::Reference< beans::XPropertySet >( m_xIgnoredUpdates->getByName( rExtensionName ), uno::UNO_QUERY_THROW )->getPropertyValue( PROPERTY_VERSION ) );
            aValue2 >>= aIgnoredVersion;
            if ( aIgnoredVersion.isEmpty() ) // no version means ignore all updates
                return false;
            else if ( aIgnoredVersion == aStoredVersion ) // the user wanted to ignore this update
                return false;
            // TODO: else delete ignored entry?
        }
        if ( isVersionGreater( rVersion, aStoredVersion ) )
            return true;
        else
        {
            m_xAvailableUpdates->removeByName( rExtensionName );
            commitChanges();
        }
    }

    return false;
}

OUString UpdateCheckConfig::getSubVersion( const OUString& rVersion,
                                                sal_Int32 *nIndex )
{
    while ( *nIndex < rVersion.getLength() && rVersion[*nIndex] == '0')
    {
        ++*nIndex;
    }

    return rVersion.getToken( 0, '.', *nIndex );
}

/// checks if the second version string is greater than the first one
bool UpdateCheckConfig::isVersionGreater( const OUString& rVersion1,
                                          const OUString& rVersion2 )
{
    for ( sal_Int32 i1 = 0, i2 = 0; i1 >= 0 || i2 >= 0; )
    {
        OUString sSub1( getSubVersion( rVersion1, &i1 ) );
        OUString sSub2( getSubVersion( rVersion2, &i2 ) );

        if ( sSub1.getLength() < sSub2.getLength() ) {
            return true;
        } else if ( sSub1.getLength() > sSub2.getLength() ) {
            return false;
        } else if ( sSub1 < sSub2 ) {
            return true;
        } else if ( sSub1 > sSub2 ) {
            return false;
        }
    }
    return false;
}

OUString SAL_CALL
UpdateCheckConfig::getImplementationName()
{
    return getImplName();
}

sal_Bool SAL_CALL
UpdateCheckConfig::supportsService(OUString const & serviceName)
{
    return cppu::supportsService(this, serviceName);
}

uno::Sequence< OUString > SAL_CALL
UpdateCheckConfig::getSupportedServiceNames()
{
    return getServiceNames();
}

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