summaryrefslogtreecommitdiff
path: root/library/config.cpp
blob: e9cae4c482ca1e6792e58862763b01b4220968ed (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
/**********************************************************************
** Copyright (C) 2000,2004 Trolltech AS.  All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include <qdir.h>
#include <qmessagebox.h>
#if QT_VERSION <= 230 && defined(QT_NO_CODECS)
#include <qtextcodec.h>
#endif
#include <qtextstream.h>

#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <fcntl.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>

#define QTOPIA_INTERNAL_LANGLIST
#include "config.h"
#include "global.h"
#include "qpeapplication.h"


/*
 * Internal Class
 */
class ConfigPrivate {
public:
    ConfigPrivate() : multilang(FALSE) {}
    ConfigPrivate(const ConfigPrivate& o) :
        trfile(o.trfile),
        trcontext(o.trcontext),
        multilang(o.multilang)
    {}
    ConfigPrivate& operator=(const ConfigPrivate& o)
    {
        trfile = o.trfile;
        trcontext = o.trcontext;
        multilang = o.multilang;
        return *this;
    }

    QString trfile;
    QCString trcontext;
    bool multilang;
};

/////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////

#ifndef Q_OS_WIN32

//#define DEBUG_CONFIG_CACHE
class ConfigData
{
public:
    ConfigData() {}
    ConfigData( const ConfigGroupMap& cf, const ConfigPrivate& pri,
                struct stat sbuf )
        : cfg( cf ), priv( pri ), mtime( sbuf.st_mtime ),
          size( sbuf.st_size )
        {
            gettimeofday(&used, 0 );
        }

    ConfigGroupMap cfg;
    ConfigPrivate priv; // Owned by this object
    time_t mtime;
    unsigned int size;
    struct timeval used;
};


class ConfigCache : public QObject {
public:
    static ConfigCache* instance();

    void insert( const QString& fileName, const ConfigGroupMap& cfg,
                 const ConfigPrivate *priv );
    bool find(const QString& fileName, ConfigGroupMap& cfg,
              ConfigPrivate** priv );
protected:
    void timerEvent( QTimerEvent* );

private:
    ConfigCache();
    void remove( const QString& fileName );
    void removeLru();

private:
    QMap<QString, ConfigData> m_cached;
    unsigned int m_totalSize;
    int m_tid;
private:
    static ConfigCache* m_inst;
    static const unsigned int CONFIG_CACHE_SIZE = 8192;
    static const unsigned int CONFIG_CACHE_TIMEOUT = 1000;
};

ConfigCache* ConfigCache::m_inst = 0;
/*
 * get destroyed when qApp gets destroyed
 */
ConfigCache::ConfigCache() : QObject( qApp ), m_totalSize( 0 ), m_tid( 0 ) {}
ConfigCache* ConfigCache::instance() {
    if ( !m_inst )
        m_inst = new ConfigCache();

    return m_inst;
}

void ConfigCache::remove( const QString& fileName ) {
    QMap<QString, ConfigData>::Iterator it = m_cached.find( fileName );

    if ( it == m_cached.end() )
        return;

    m_totalSize -= (*it).size;
    m_cached.remove( it );
}

void ConfigCache::removeLru() {
    QMap<QString, ConfigData>::Iterator it  = m_cached.begin();
    QMap<QString, ConfigData>::Iterator lru = it;
    ++it;
    for (; it != m_cached.end(); ++it)
        if ((*it).used.tv_sec < (*lru).used.tv_sec ||
            ((*it).used.tv_sec == (*lru).used.tv_sec &&
             (*it).used.tv_usec < (*lru).used.tv_usec))
            lru = it;

    qWarning( "Removing item" );
    m_totalSize -= (*lru).size;
    m_cached.remove(lru);
}

void ConfigCache::timerEvent( QTimerEvent* ) {
    while ( m_totalSize > CONFIG_CACHE_SIZE )
        removeLru();

    killTimer(m_tid);
    m_tid = 0;
}

void ConfigCache::insert( const QString& fileName, const ConfigGroupMap& cfg,
                          const ConfigPrivate* _priv ) {


    struct stat sbuf;
    ::stat( QFile::encodeName(fileName), &sbuf );
    if ( static_cast<unsigned int>(sbuf.st_size) >= CONFIG_CACHE_SIZE>>1)
        return;

    /*
     * remove the old version and use the new one
     */
    ConfigPrivate priv = _priv ? *_priv : ConfigPrivate();
    ConfigData data( cfg, priv, sbuf );
    m_totalSize += data.size;

    remove( fileName );
    m_cached.insert( fileName, data );

    /*
     * we've overcommited allocation, let us clean up
     * soon
     */
    if ( m_totalSize >= CONFIG_CACHE_SIZE )
        if ( !m_tid )
            m_tid = startTimer(CONFIG_CACHE_TIMEOUT);
}

bool ConfigCache::find( const QString& fileName, ConfigGroupMap& cfg,
                        ConfigPrivate **ppriv ) {
    QMap<QString, ConfigData>::Iterator it = m_cached.find(fileName);
    if (it != m_cached.end()) {
        ConfigData &data = *it;
        struct stat sbuf;
        ::stat(QFile::encodeName( fileName ), &sbuf);

        if (data.mtime == sbuf.st_mtime && (int)data.size == sbuf.st_size) {
            cfg = data.cfg;

            /*
             * null pointer
             */
            if ( *ppriv == 0 )
                *ppriv = new ConfigPrivate( data.priv );
            **ppriv = data.priv;
            gettimeofday(&data.used, 0);

            return true;
        }
    }

    return false;
}

#endif


/*!
  \internal
*/
QString Config::configFilename(const QString& name, Domain d)
{
    switch (d) {
    case File:
        return name;
    case User: {
        QDir dir = (QString(getenv("HOME")) + "/Settings");
        if ( !dir.exists() )
            mkdir(dir.path().local8Bit(),0700);
        return dir.path() + "/" + name + ".conf";
    }
    }
    return name;
}

/* This cannot be made public because of binary compat issues */
void Config::read( QTextStream &s )
{
#if QT_VERSION <= 230 && defined(QT_NO_CODECS)
    // The below should work, but doesn't in Qt 2.3.0
    s.setCodec( QTextCodec::codecForMib( 106 ) );
#else
    s.setEncoding( QTextStream::UnicodeUTF8 );
#endif

    QStringList list = QStringList::split('\n', s.read() );

    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
        if ( !parse( *it ) ) {
            git = groups.end();
            return;
        }
    }
}

/*!
  \class Config config.h
  \brief The Config class provides for saving application cofniguration state.

  You should keep a Config in existence only while you do not want others
  to be able to change the state. There is no locking currently, but there
  may be in the future.
*/

/*!
  \enum Config::ConfigGroup
  \internal
*/

/*!
  \enum Config::Domain

  \value File
  \value User

  See Config for details.
*/

/*!
  Constructs a config that will load or create a configuration with the
  given \a name in the given \a domain.

  You must call setGroup() before doing much else with the Config.

  In the default Domain, \e User,
  the configuration is user-specific. \a name should not contain "/" in
  this case, and in general should be the name of the C++ class that is
  primarily responsible for maintaining the configuration.

  In the File Domain, \a name is an absolute filename.
*/
Config::Config( const QString &name, Domain domain )
    : filename( configFilename(name,domain) )
{
    git = groups.end();
    d = 0;
    read();
}


// Sharp ROM compatibility
Config::Config ( const QString &name, bool what )
	: filename( configFilename(name,what ? User : File) )
{
    git = groups.end();
    d = 0;
    read();
}

/*!
  Writes any changes to disk and destroys the in-memory object.
*/
Config::~Config()
{
    if ( changed )
        write();

    delete d;
}

/*!
  Returns whether the current group has an entry called \a key.
*/
bool Config::hasKey( const QString &key ) const
{
    if ( groups.end() == git )
	return FALSE;
    ConfigGroup::ConstIterator it = ( *git ).find( key );
    if ( it == ( *git ).end() ) {
        if ( d && !d->trcontext.isNull() ) {
            it = ( *git ).find( key + "[]" );
        } else if ( d && d->multilang ) {
            it = ( *git ).find( key + "["+lang+"]" );
            if ( it == ( *git ).end() && !glang.isEmpty() )
                it = ( *git ).find( key + "["+glang+"]" );
        }
    }
    return it != ( *git ).end();
}

/*!
  Sets the current group for subsequent reading and writing of
  entries to \a gname. Grouping allows the application to partition the namespace.

  This function must be called prior to any reading or writing
  of entries.

  The \a gname must not be empty.
*/
void Config::setGroup( const QString &gname )
{
    QMap< QString, ConfigGroup>::Iterator it = groups.find( gname );
    if ( it == groups.end() ) {
	git = groups.insert( gname, ConfigGroup() );
	changed = TRUE;
	return;
    }
    git = it;
}

/*!
  Writes a (\a key, \a value) entry to the current group.

  \sa readEntry()
*/
void Config::writeEntry( const QString &key, const char* value )
{
    writeEntry(key,QString(value));
}

/*!
  Writes a (\a key, \a value) entry to the current group.

  \sa readEntry()
*/
void Config::writeEntry( const QString &key, const QString &value )
{
    if ( git == groups.end() ) {
	qWarning( "no group set" );
	return;
    }
    if ( (*git)[key] != value ) {
	( *git ).insert( key, value );
	changed = TRUE;
    }
}

/*
  Note that the degree of protection offered by the encryption here is
  only sufficient to avoid the most casual observation of the configuration
  files. People with access to the files can write down the contents and
  decrypt it using this source code.

  Conceivably, and at some burden to the user, this encryption could
  be improved.
*/
static QString encipher(const QString& plain)
{
    // mainly, we make it long
    QString cipher;
    int mix=28730492;
    for (int i=0; i<(int)plain.length(); i++) {
	int u = plain[i].unicode();
	int c = u ^ mix;
	QString x = QString::number(c,36);
	cipher.append(QChar('a'+x.length()));
	cipher.append(x);
	mix *= u;
    }
    return cipher;
}

static QString decipher(const QString& cipher)
{
    QString plain;
    int mix=28730492;
    for (int i=0; i<(int)cipher.length();) {
	int l = cipher[i].unicode()-'a';
	QString x = cipher.mid(i+1,l); i+=l+1;
	int u = x.toInt(0,36) ^ mix;
	plain.append(QChar(u));
	mix *= u;
    }
    return plain;
}

/*!
  Writes an encrypted (\a key, \a value) entry to the current group.

  Note that the degree of protection offered by the encryption is
  only sufficient to avoid the most casual observation of the configuration
  files.

  \sa readEntry()
*/
void Config::writeEntryCrypt( const QString &key, const QString &value )
{
    if ( git == groups.end() ) {
	qWarning( "no group set" );
	return;
    }
    QString evalue = encipher(value);
    if ( (*git)[key] != evalue ) {
	( *git ).insert( key, evalue );
	changed = TRUE;
    }
}

/*!
  Writes a (\a key, \a num) entry to the current group.

  \sa readNumEntry()
*/
void Config::writeEntry( const QString &key, int num )
{
    QString s;
    s.setNum( num );
    writeEntry( key, s );
}

#ifdef Q_HAS_BOOL_TYPE
/*!
  Writes a (\a key, \a b) entry to the current group. This is equivalent
  to writing a 0 or 1 as an integer entry.

  \sa readBoolEntry()
*/
void Config::writeEntry( const QString &key, bool b )
{
    QString s;
    s.setNum( ( int )b );
    writeEntry( key, s );
}
#endif

/*!
  Writes a (\a key, \a lst) entry to the current group. The list
  is separated by \a sep, so the strings must not contain that character.

  \sa readListEntry()
*/
void Config::writeEntry( const QString &key, const QStringList &lst, const QChar &sep )
{
    QString s;
    QStringList::ConstIterator it = lst.begin();
    for ( ; it != lst.end(); ++it )
	s += *it + sep;
    writeEntry( key, s );
}

/*!
  Removes the \a key entry from the current group. Does nothing if
  there is no such entry.
*/

void Config::removeEntry( const QString &key )
{
    if ( git == groups.end() ) {
	qWarning( "no group set" );
	return;
    }
    ( *git ).remove( key );
    changed = TRUE;
}

/*!
  \fn bool Config::operator == ( const Config & other ) const

  Tests for equality with \a other. Config objects are equal if they refer to the same filename.
*/

/*!
  \fn bool Config::operator != ( const Config & other ) const

  Tests for inequality with \a other. Config objects are equal if they refer to the same filename.
*/


/*!
  \fn QString Config::readEntry( const QString &key, const QString &deflt ) const

  Reads a string entry stored with \a key, defaulting to \a deflt if there is no entry.
*/

/*
 * ### !LocalTranslator::translate was kept out!
 *
 */

/*!
  \internal
  For compatibility, non-const version.
*/
QString Config::readEntry( const QString &key, const QString &deflt )
{
    QString r;
    if ( d && !d->trcontext.isNull() ) {
        // Still try untranslated first, becuase:
        //  1. It's the common case
        //  2. That way the value can be WRITTEN (becoming untranslated)
        r = readEntryDirect( key );
        if ( !r.isNull() )
            return r;
        r = readEntryDirect( key + "[]" );
        if ( !r.isNull() )
            return qApp->translate(d->trfile,d->trcontext,r);
    } else if ( d && d->multilang ) {
        // For compatibilitity
        r = readEntryDirect( key + "["+lang+"]" );
        if ( !r.isNull() )
            return r;
        if ( !glang.isEmpty() ) {
            r = readEntryDirect( key + "["+glang+"]" );
            if ( !r.isNull() )
                return r;
        }
    }
    r = readEntryDirect( key, deflt );
    return r;
}

/*!
  \fn QString Config::readEntryCrypt( const QString &key, const QString &deflt ) const

  Reads an encrypted string entry stored with \a key, defaulting to \a deflt if there is no entry.
*/

/*!
  \internal
  For compatibility, non-const version.
*/
QString Config::readEntryCrypt( const QString &key, const QString &deflt )
{
    QString res = readEntry( key );
    if ( res.isNull() )
        return deflt;
    return decipher(res);
}

/*!
  \fn QString Config::readEntryDirect( const QString &key, const QString &deflt ) const
  \internal
*/

/*!
  \internal
  For compatibility, non-const version.
*/
QString Config::readEntryDirect( const QString &key, const QString &deflt )
{
    if ( git == groups.end() ) {
	//qWarning( "no group set" );
	return deflt;
    }
    ConfigGroup::ConstIterator it = ( *git ).find( key );
    if ( it != ( *git ).end() )
	return *it;
    else
	return deflt;
}

/*!
  \fn int Config::readNumEntry( const QString &key, int deflt ) const
  Reads a numeric entry stored with \a key, defaulting to \a deflt if there is no entry.
*/

/*!
  \internal
  For compatibility, non-const version.
*/
int Config::readNumEntry( const QString &key, int deflt )
{
    QString s = readEntry( key );
    if ( s.isEmpty() )
	return deflt;
    else
	return s.toInt();
}

/*!
  \fn bool Config::readBoolEntry( const QString &key, bool deflt ) const
  Reads a bool entry stored with \a key, defaulting to \a deflt if there is no entry.
*/

/*!
  \internal
  For compatibility, non-const version.
*/
bool Config::readBoolEntry( const QString &key, bool deflt )
{
    QString s = readEntry( key );
    if ( s.isEmpty() )
	return deflt;
    else
	return (bool)s.toInt();
}

/*!
  \fn QStringList Config::readListEntry( const QString &key, const QChar &sep ) const
  Reads a string list entry stored with \a key, and with \a sep as the separator.
*/

/*!
  \internal
  For compatibility, non-const version.
*/
QStringList Config::readListEntry( const QString &key, const QChar &sep )
{
    QString s = readEntry( key );
    if ( s.isEmpty() )
	return QStringList();
    else
	return QStringList::split( sep, s );
}

/*!
  Removes all entries from the current group.
*/
void Config::clearGroup()
{
    if ( git == groups.end() ) {
	qWarning( "no group set" );
	return;
    }
    if ( !(*git).isEmpty() ) {
	( *git ).clear();
	changed = TRUE;
    }
}

/*!
  \internal
*/
void Config::write( const QString &fn )
{
    QString oldGroup = git.key();

    QString strNewFile;
    if ( !fn.isEmpty() )
	filename = fn;
    strNewFile = filename + ".new";

    QFile f( strNewFile );
    if ( !f.open( IO_WriteOnly|IO_Raw ) ) {
	qWarning( "could not open for writing `%s'", strNewFile.latin1() );
	git = groups.end();
	return;
    }

    QString str;
    QCString cstr;
    QMap< QString, ConfigGroup >::Iterator g_it = groups.begin();

    for ( ; g_it != groups.end(); ++g_it ) {
        str += "[" + g_it.key() + "]\n";
        ConfigGroup::Iterator e_it = ( *g_it ).begin();
        for ( ; e_it != ( *g_it ).end(); ++e_it )
            str += e_it.key() + " = " + *e_it + "\n";
    }
    cstr = str.utf8();

    int total_length;
    total_length = f.writeBlock( cstr.data(), cstr.length() );
    if ( total_length != int(cstr.length()) ) {
	QMessageBox::critical( 0, QObject::tr("Out of Space"),
			       QObject::tr("There was a problem creating\nConfiguration Information \nfor this program.\n\nPlease free up some space and\ntry again.") );
	f.close();
	QFile::remove( strNewFile );
	return;
    }

    f.close();
    // now rename the file...
    if ( rename( strNewFile, filename ) < 0 ) {
	qWarning( "problem renaming the file %s to %s", strNewFile.latin1(),
		  filename.latin1() );
        QFile::remove( strNewFile );
        return;
    }

#ifndef Q_OS_WIN32
    ConfigCache::instance()->insert( filename, groups, d );
    setGroup( oldGroup );
#endif
    changed = FALSE;
}

/*!
  Returns whether the Config is in a valid state.
*/
bool Config::isValid() const
{
    return groups.end() != git;
}

/*!
  \internal
*/
void Config::read()
{
    changed = FALSE;

    QString readFilename(filename);

    if ( !QFile::exists(filename) ) {
        bool failed = TRUE;
        QFileInfo fi(filename);
        QString settingsDir = QDir::homeDirPath() + "/Settings";
        if (fi.dirPath(TRUE) == settingsDir) {
        // User setting - see if there is a default in $OPIEDIR/etc/default/
            QString dftlFile = QPEApplication::qpeDir() + "etc/default/" + fi.fileName();
            if (QFile::exists(dftlFile)) {
                readFilename = dftlFile;
                failed = FALSE;
            }
        }
        if (failed) {
            git = groups.end();
            return;
        }
    }

#ifndef Q_OS_WIN32

    if (ConfigCache::instance()->find(readFilename, groups, &d)) {
        if ( d && d->multilang ) {
            QStringList l = Global::languageList();
            lang = l[0];
            glang = l[1];
        }
        git = groups.begin();
        return;
    }
#endif

    QFile f( readFilename );
    if ( !f.open( IO_ReadOnly ) ) {
        git = groups.end();
        return;
    }

    if (f.getch()!='[') {
        git = groups.end();
        return;
    }
    f.ungetch('[');

    QTextStream s( &f );
    read( s );
    f.close();

#ifndef Q_OS_WIN32
    ConfigCache::instance()->insert(readFilename, groups, d);
#endif
}

/*!
  \internal
*/
bool Config::parse( const QString &l )
{
    QString line = l.stripWhiteSpace();
    if ( line[ 0 ] == QChar( '[' ) ) {
        QString gname = line;
        gname = gname.remove( 0, 1 );
        if ( gname[ (int)gname.length() - 1 ] == QChar( ']' ) )
            gname = gname.remove( gname.length() - 1, 1 );
        git = groups.insert( gname, ConfigGroup() );
    } else if ( !line.isEmpty() ) {
        if ( git == groups.end() )
            return FALSE;
        int eq = line.find( '=' );
        if ( eq == -1 )
            return FALSE;
        QString key = line.left(eq).stripWhiteSpace();
        QString value = line.mid(eq+1).stripWhiteSpace();

        if ( git.key() == "Translation" ) {
            if ( key == "File" ) {
                if ( !d )
                    d = new ConfigPrivate;
                d->trfile = value;
            } else if ( key == "Context" ) {
                if ( !d )
                    d = new ConfigPrivate;
                d->trcontext = value.latin1();
            } else if ( key.startsWith("Comment") ) {
                return TRUE; // ignore comment for ts file
            } else {
                return FALSE; // Unrecognized
            }
        }

        int kl = key.length();
        if ( kl > 1 && key[kl-1] == ']' && key[kl-2] != '[' ) {
            // Old-style translation (inefficient)
            if ( !d )
                d = new ConfigPrivate;
            if ( !d->multilang ) {
                QStringList l = Global::languageList();
                lang = l[0];
                glang = l[1];
                d->multilang = TRUE;
            }
        }

        ( *git ).insert( key, value );
    }
    return TRUE;
}



bool Config::hasGroup( const QString& name )const {
    return ( groups. find ( name ) != groups. end ( ));
};

QStringList Config::groupList()const {
    QStringList sl;
    for ( ConfigGroupMap::ConstIterator it = groups. begin ( ); it != groups. end ( ); ++it )
        sl << it.key();

    return sl;
};

/////////////
// Qtopia 2.1 Functions
//
////////////

QStringList Config::allGroups()const {
    return groupList();
}

/*!
  Returns the time stamp for the config identified by \a name.  The
  time stamp represents the time the config was last committed to storage.
  Returns 0 if there is no time stamp available for the config.

  A \a domain can optionally be specified and defaults to User.
  See \l{Config()} for details.

  First availability: Qtopia 2.0
*/
long Config::timeStamp(const QString& name, Domain domain)
{
#ifdef Q_WS_WIN
    // Too slow (many conversions too and from time_t and QDataTime)
    QDateTime epoch;
    epoch.setTime_t(0);
    return epoch.secsTo(QFileInfo(Config::configFilename(name,domain)).lastModified());
#else
    QString fn = Config::configFilename(name,domain);
    struct stat b;
    if (lstat( QFile::encodeName(fn).data(), &b ) == 0)
        return b.st_mtime;
    else
        return 0;
#endif
}


/*!
  Removes the current group (and all its entries).

  The current group becomes unset.

  First availability: Qtopia 2.0
*/
void Config::removeGroup()
{
    if ( git == groups.end() ) {
        qWarning( "no group set" );
        return;
    }

    groups.remove(git.key());
    git = groups.end();
    changed = TRUE;
}

/*!
  Removes the current group (and all its entries).

  The current group becomes unset.

  First availability: Qtopia 2.0
*/
void Config::removeGroup(const QString& g)
{
    groups.remove(g);
    git = groups.end();
}



/*!
  Writes a (\a key, \a lst) entry to the current group.

  The list is
  separated by the two characters "^e", and "^" withing the strings
  is replaced by "^^", such that the strings may contain any character,
  including "^".

  Null strings are also allowed, and are recorded as "^0" in the string.

  First availability: Qtopia 2.0

  \sa readListEntry()
*/
void Config::writeEntry( const QString &key, const QStringList &lst )
{
    QString s;
    for (QStringList::ConstIterator it=lst.begin(); it!=lst.end(); ++it) {
        QString el = *it;
        if ( el.isNull() ) {
            el = "^0";
        } else {
            el.replace(QRegExp("\\^"), "^^");
        }
        s+=el;
        s+="^e"; // end of element
    }
    writeEntry(key, s);
}

/*!
  Returns the string list entry stored using \a key and with
  the escaped seperator convention described in writeListEntry().

  First availability: Qtopia 2.0
*/
QStringList Config::readListEntry( const QString &key ) const
{
    QString value = readEntry( key, QString::null );
    QStringList l;
    QString s;
    bool esc=FALSE;
    for (int i=0; i<(int)value.length(); i++) {
        if ( esc ) {
            if ( value[i] == 'e' ) { // end-of-string
                l.append(s);
                s="";
            } else if ( value[i] == '0' ) { // null string
                s=QString::null;
            } else {
                s.append(value[i]);
            }
            esc = FALSE;
        } else if ( value[i] == '^' ) {
            esc = TRUE;
        } else {
            s.append(value[i]);
            if ( i == (int)value.length()-1 )
                l.append(s);
        }
    }
    return l;
}

QString Config::readEntry( const QString &key, const QString &deflt ) const
{ return ((Config*)this)->readEntry(key,deflt); }
QString Config::readEntryCrypt( const QString &key, const QString &deflt ) const
{ return ((Config*)this)->readEntryCrypt(key,deflt); }
QString Config::readEntryDirect( const QString &key, const QString &deflt ) const
{ return ((Config*)this)->readEntryDirect(key,deflt); }
int Config::readNumEntry( const QString &key, int deflt ) const
{ return ((Config*)this)->readNumEntry(key,deflt); }
bool Config::readBoolEntry( const QString &key, bool deflt ) const
{ return ((Config*)this)->readBoolEntry(key,deflt); }
QStringList Config::readListEntry( const QString &key, const QChar &sep ) const
{ return ((Config*)this)->readListEntry(key,sep); }