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IsoArchive.cpp
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IsoArchive.cpp
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/****************************************************************************
** Deling Final Fantasy VIII Field Editor
** Copyright (C) 2009-2012 Arzel Jérôme <[email protected]>
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "IsoArchive.h"
IsoFileOrDirectory::IsoFileOrDirectory(const QString &name, quint32 location, quint32 size, qint64 structPosition) :
structPosition(structPosition), _name(name), _location(location), _size(size),
_newLocation(location), _newSize(size), _paddingAfter(0)
{
}
IsoFileOrDirectory::~IsoFileOrDirectory()
{
}
const QString &IsoFileOrDirectory::name() const
{
return _name;
}
quint32 IsoFileOrDirectory::location() const
{
return _location;
}
quint32 IsoFileOrDirectory::size() const
{
return _size;
}
quint32 IsoFileOrDirectory::sectorCount() const
{
return _size / SECTOR_SIZE_DATA + (int)(_size % SECTOR_SIZE_DATA != 0);
}
quint32 IsoFileOrDirectory::newLocation() const
{
return _newLocation;
}
quint32 IsoFileOrDirectory::newSize() const
{
return _newSize;
}
quint32 IsoFileOrDirectory::newSectorCount() const
{
return _newSize / SECTOR_SIZE_DATA + (int)(_newSize % SECTOR_SIZE_DATA != 0);
}
void IsoFileOrDirectory::setName(const QString &name)
{
_name = name;
}
void IsoFileOrDirectory::setLocation(quint32 location)
{
_newLocation = location;
}
void IsoFileOrDirectory::setSize(quint32 size)
{
_newSize = size;
}
bool IsoFileOrDirectory::isFile() const
{
return !isDirectory();
}
bool IsoFileOrDirectory::isModified() const
{
return _location != _newLocation || _size != _newSize;
}
void IsoFileOrDirectory::applyModifications()
{
_location = _newLocation;
_size = _newSize;
}
bool IsoFileOrDirectory::isSpecial() const
{
return _name.isEmpty() || _name == "\x01";
}
void IsoFileOrDirectory::setPaddingAfter(quint8 after)
{
_paddingAfter = after;
}
quint8 IsoFileOrDirectory::paddingAfter() const
{
return _paddingAfter;
}
IsoDirectory::IsoDirectory(const QString &name, quint32 location, quint32 size, qint64 structPosition) :
IsoFileOrDirectory(name, location, size, structPosition)
{
}
IsoDirectory::~IsoDirectory()
{
foreach(IsoFileOrDirectory *fOrD, _filesAndDirectories) {
delete fOrD;
}
}
bool IsoDirectory::isDirectory() const
{
return true;
}
const QMap<QString, IsoFileOrDirectory *> &IsoDirectory::filesAndDirectories() const
{
return _filesAndDirectories;
}
QList<IsoFile *> IsoDirectory::files() const
{
QList<IsoFile *> fs;
foreach(IsoFileOrDirectory *fOrD, _filesAndDirectories) {
if(fOrD->isFile()) {
fs.append((IsoFile *)fOrD);
}
}
return fs;
}
QList<IsoDirectory *> IsoDirectory::directories() const
{
QList<IsoDirectory *> ds;
foreach(IsoFileOrDirectory *fOrD, _filesAndDirectories) {
if(fOrD->isDirectory()) {
ds.append((IsoDirectory *)fOrD);
}
}
return ds;
}
IsoFileOrDirectory *IsoDirectory::fileOrDirectory(const QString &path) const
{
int index;
if((index = path.indexOf("/")) != -1) {
IsoFileOrDirectory *fOrD = _filesAndDirectories.value(path.left(index).toUpper(), NULL);
if(fOrD == NULL) return NULL;
if(fOrD->isDirectory()) {
return ((IsoDirectory *)fOrD)->fileOrDirectory(path.mid(index+1));
} else {
return NULL;
}
} else {
return _filesAndDirectories.value(path.toUpper(), NULL);
}
}
IsoFile *IsoDirectory::file(const QString &path) const
{
IsoFileOrDirectory *fOrD = fileOrDirectory(path);
if(fOrD == NULL) return NULL;
if(fOrD->isDirectory()) {
return NULL;
}
return (IsoFile *)fOrD;
}
IsoDirectory *IsoDirectory::directory(const QString &path) const
{
IsoFileOrDirectory *fOrD = fileOrDirectory(path);
if(fOrD == NULL) return NULL;
if(fOrD->isFile()) {
return NULL;
}
return (IsoDirectory *)fOrD;
}
void IsoDirectory::add(IsoFileOrDirectory *fileOrDirectory)
{
_filesAndDirectories.insert(fileOrDirectory->name(), fileOrDirectory);
}
IsoFile::IsoFile(const QString &name, quint32 location, quint32 size, qint64 structPosition) :
IsoFileOrDirectory(name, location, size, structPosition), dataChanged(false)
{
}
bool IsoFile::isDirectory() const
{
return false;
}
const QByteArray &IsoFile::newData() const
{
return _newData;
}
void IsoFile::setData(const QByteArray &data)
{
_newData = data;
_newSize = data.size();
dataChanged = true;
}
bool IsoFile::isModified() const
{
return dataChanged || IsoFileOrDirectory::isModified();
}
void IsoFile::applyModifications()
{
_newData.clear();
dataChanged = false;
IsoFileOrDirectory::applyModifications();
}
IsoArchiveIO::IsoArchiveIO(const QString &name) :
QFile(name)
{
}
IsoArchiveIO::~IsoArchiveIO()
{
}
bool IsoArchiveIO::open(QIODevice::OpenMode mode)
{
bool open = QFile::open(mode);
if(!open) return false;
if(mode.testFlag(QIODevice::Truncate)) {
return true;
}
if(!_open()) {
close();
return false;
}
reset();
return true;
}
qint64 IsoArchiveIO::posIso() const
{
return isoPos(pos());
}
bool IsoArchiveIO::seekIso(qint64 off)
{
return seek(filePos(off));
}
qint64 IsoArchiveIO::sizeIso() const
{
return isoPos(size());
}
qint64 IsoArchiveIO::isoPos(qint64 pos)
{
qint64 start = (pos % SECTOR_SIZE) - 24;
if(start < 0) {
start = 0;
} else if(start > SECTOR_SIZE_DATA) {
start = SECTOR_SIZE_DATA;
}
return SECTOR_SIZE_DATA * (pos / SECTOR_SIZE) + start;
}
qint64 IsoArchiveIO::filePos(qint64 pos)
{
return 24 + (pos / SECTOR_SIZE_DATA) * SECTOR_SIZE + pos % SECTOR_SIZE_DATA;
}
qint64 IsoArchiveIO::readIso(char *data, qint64 maxSize)
{
qint64 read, readTotal = 0, seqLen;
// qDebug() << pos() << "seek >> " << seqLen;
if(!seekIso(isoPos(pos()))) return 0;
seqLen = qMin(2072 - (pos() % SECTOR_SIZE), maxSize);
if(seqLen < 0) return 0;
while((read = this->read(data, seqLen)) > 0) {
// qDebug() << "read" << seqLen << read;
data += read;
maxSize -= read;
readTotal += read;
seqLen = qMin((qint64)SECTOR_SIZE_DATA, maxSize);
// qDebug() << "seqLen" << seqLen << maxSize << pos();
// Si on est à la fin du secteur
if(pos() % SECTOR_SIZE >= 2072) {
if(!seek(pos() + 304)) break;
// qDebug() << "seek >> 304" << pos();
}
}
return read < 0 ? read : readTotal;
}
QByteArray IsoArchiveIO::readIso(qint64 maxSize)
{
char *data = new char[maxSize];
QByteArray baData(data, readIso(data, maxSize));
delete[] data;
return baData;
}
qint64 IsoArchiveIO::writeIso(const char *data, qint64 maxSize)
{
qint64 write, writeTotal = 0, seqLen;
// qDebug() << pos() << "seek >> " << seqLen;
if(!seekIso(isoPos(pos()))) return 0;
seqLen = qMin(2072 - (pos() % SECTOR_SIZE), maxSize);
while((write = this->write(data, seqLen)) > 0) {
// qDebug() << "write" << seqLen << write;
data += write;
maxSize -= write;
writeTotal += write;
seqLen = qMin((qint64)2048, maxSize);
// qDebug() << "seqLen" << seqLen << maxSize << pos();
// Si on est à la fin du secteur
if(pos() % SECTOR_SIZE >= 2072) {
if(!seek(pos() + 304)) break;
// qDebug() << "seek >> 304" << pos();
}
}
return write < 0 ? write : writeTotal;
}
qint64 IsoArchiveIO::writeIso(const QByteArray &byteArray)
{
return writeIso(byteArray.constData(), byteArray.size());
}
QByteArray IsoArchiveIO::sectorHeader(quint32 num)
{
seek(SECTOR_SIZE * num);
return read(24);
}
QByteArray IsoArchiveIO::sectorFooter(quint32 num)
{
seek(SECTOR_SIZE * num + 2072);
return read(280);
}
QByteArray IsoArchiveIO::sector(quint32 num, quint16 maxSize)
{
seek(SECTOR_SIZE * num + 24);
return read(qMin(maxSize, quint16(SECTOR_SIZE_DATA)));
}
quint32 IsoArchiveIO::currentSector() const
{
return pos() / SECTOR_SIZE;
}
quint32 IsoArchiveIO::sectorCount() const
{
return size() / SECTOR_SIZE;
}
quint32 IsoArchiveIO::sectorCountData(quint32 dataSize)
{
return dataSize / SECTOR_SIZE_DATA;
}
bool IsoArchiveIO::seekToSector(quint32 num)
{
return seek(SECTOR_SIZE * num);
}
qint64 IsoArchiveIO::writeSectors(const QByteArray &data, QIODevice *out, quint32 secteur, IsoControl *control, quint32 sectorCount)
{
int size = data.size();
const char *constData = data.constData();
QByteArray sector;
bool continueWriteField = size > 0;
bool padding = sectorCount != 0;
if(padding) {
sectorCount += secteur;
}
while(continueWriteField) {
if(control->wasCanceled()) return -1;
if(size <= SECTOR_SIZE_DATA) {
// sector header
sector = buildHeader(secteur, 0x89);
// data
if(size == SECTOR_SIZE_DATA) {
sector.append(constData, size);
} else {
sector.append(constData, size).append(QByteArray(SECTOR_SIZE_DATA - size, '\x00'));
}
continueWriteField = false;
} else {
// sector header + data + sector footer
sector = buildHeader(secteur, 0x08).append(constData, SECTOR_SIZE_DATA);
size -= SECTOR_SIZE_DATA;
constData += SECTOR_SIZE_DATA;
continueWriteField = true;
}
// sector footer
out->write(sector.append(secteur < this->sectorCount() ? sectorFooter(secteur) : buildFooter(secteur)));
secteur++;
}
if(padding) {
while(secteur < sectorCount) {
if(control->wasCanceled()) return -1;
// sector header + empty data + empty footer
out->write(buildHeader(secteur, 0x20).append(QByteArray(2328, '\x00')));
secteur++;
}
}
return secteur;
}
int IsoArchiveIO::copyBytes(QIODevice *out, int size, int last_esti, IsoControl *control)
{
int count = size/READ_MAX, i;
// qDebug() << "écriture de" << size << "octets (" << (size/SECTOR_SIZE) << "secteurs) dans isoTemp";
for(i=0 ; i<count ; ++i) {
if(control->wasCanceled()) return -1;
out->write(read(READ_MAX));
// Envoi de la position courante à l'output
if(last_esti != (int)(control->baseEstimation + (out->pos()/SECTOR_SIZE)*control->estimation)) {
last_esti = control->baseEstimation + (out->pos()/SECTOR_SIZE)*control->estimation;
control->setIsoOut(last_esti);
}
}
if(size % READ_MAX != 0) {
out->write(read(size % READ_MAX));
}
return last_esti;
}
IsoArchive::IsoArchive(const QString &name) :
IsoArchiveIO(name), _rootDirectory(NULL)
{
}
IsoArchive::~IsoArchive()
{
if(_rootDirectory != NULL) delete _rootDirectory;
}
bool IsoArchive::_open()
{
if(!openVolumeDescriptor()) {
return false;
}
// qDebug() << volumeDescriptorToString(volume);
qint64 size = QFile::size();
if(size%SECTOR_SIZE != 0 || volume.vd1.volume_space_size != sectorCount() || volume.vd1.id[0] != 'C' || volume.vd1.id[1] != 'D' || volume.vd1.id[2] != '0' || volume.vd1.id[3] != '0' || volume.vd1.id[4] != '1') {
qWarning() << (size%SECTOR_SIZE) << volume.vd1.volume_space_size << sectorCount();
return false;
}
openRootDirectory(volume.dr.drh.location_extent, volume.dr.drh.data_length);
// pathTables1a = pathTable(volume.vd1.type_path_table, volume.vd1.path_table_size);
// pathTables1b = pathTable(volume.vd1.opt_type_path_table, volume.vd1.path_table_size);
// pathTables2a = pathTable(qFromBigEndian(volume.vd1.type_path_table2), volume.vd1.path_table_size);
// pathTables2b = pathTable(qFromBigEndian(volume.vd1.opt_type_path_table2), volume.vd1.path_table_size);
/*qDebug() << "PATHTABLE1";
foreach(PathTable pt, pathTables1a)
qDebug() << pathTableToString(pt);
qDebug() << "PATHTABLE2";
foreach(PathTable pt, pathTables1b)
qDebug() << pathTableToString(pt);
qDebug() << "PATHTABLE3";
foreach(PathTable pt, pathTables2a)
qDebug() << pathTableToString(pt, true);
qDebug() << "PATHTABLE4";
foreach(PathTable pt, pathTables2b)
qDebug() << pathTableToString(pt, true);
*/
return true;
}
int IsoArchive::findPadding(const QList<IsoFileOrDirectory *> &orderedFileList, quint32 minSectorCount)
{
int i=0;
foreach(IsoFileOrDirectory *fileOrDir, orderedFileList) {
if(fileOrDir->paddingAfter() >= minSectorCount) {
return i;
}
++i;
}
return -0;
}
bool IsoArchive::pack(IsoArchive *destination, IsoControl *control, IsoDirectory *directory)
{
QMap<quint32, const IsoFile *> writeToTheMain;
QList<const IsoFile *> writeToTheEnd;
qint64 secteur=0;
quint32 endOfIso = sectorCount();
IsoFileOrDirectory *fileWithPaddingAfter;
int last_esti = control->baseEstimation, index;
QList<IsoFileOrDirectory *> orderedFileList = getIntegrity();
if(directory == NULL) {
directory = _rootDirectory;
}
foreach(IsoFile *isoFile, getModifiedFiles(directory)) {
// Est-ce que les nouvelles données sont plus grandes que les anciennes ? Est-ce qu'on est pas à la fin de l'archive ?
if(isoFile->newSectorCount() > isoFile->sectorCount() + isoFile->paddingAfter()
&& isoFile->location() + isoFile->sectorCount() < sectorCount()) {
if((index = findPadding(orderedFileList, isoFile->newSectorCount())) != -1) {
fileWithPaddingAfter = orderedFileList.at(index);
isoFile->setLocation(fileWithPaddingAfter->location() + fileWithPaddingAfter->sectorCount());
isoFile->setPaddingAfter(fileWithPaddingAfter->paddingAfter() - isoFile->sectorCount());
fileWithPaddingAfter->setPaddingAfter(0);
orderedFileList.replace(index, isoFile);
writeToTheMain.insert(isoFile->newLocation(), isoFile);
// qDebug() << "Trouvé un espace suffisant à" << fileWithPaddingAfter->name() << (fileWithPaddingAfter->location() + fileWithPaddingAfter->sectorCount()) << "pour" << isoFile->name();
} else {
writeToTheEnd.append(isoFile);
isoFile->setLocation(endOfIso);
endOfIso += isoFile->newSectorCount();
}
// qDebug() << "Fichier trop gros" << isoFile->newSectorCount() << isoFile->sectorCount() << (isoFile->newSectorCount() - isoFile->sectorCount()) << isoFile->name();
} else {
if(isoFile->paddingAfter() > isoFile->newSectorCount() - isoFile->sectorCount())
isoFile->setPaddingAfter(isoFile->paddingAfter() - (isoFile->newSectorCount() - isoFile->sectorCount()));
writeToTheMain.insert(isoFile->newLocation(), isoFile);
}
}
// qDebug() << "décompression...";
control->estimation /= (double)endOfIso;
reset();
foreach(const IsoFile *isoFile, writeToTheMain) {
if(control->wasCanceled()) return false;
secteur = isoFile->newLocation();
// Données avant le fichier
last_esti = copyBytes(destination, SECTOR_SIZE*secteur - pos(), last_esti, control);
if(last_esti == -1) return false;
// Debug
if(destination->pos()%SECTOR_SIZE != 0) qWarning() << "destination error 1a" << (destination->pos()%SECTOR_SIZE) << isoFile->name();
if(destination->pos()/SECTOR_SIZE != secteur) qWarning() << "destination error 1b" << (destination->pos()/SECTOR_SIZE) << secteur << isoFile->name();
if(destination->pos() != pos()) qWarning() << "destination error 1c" << destination->pos() << pos() << isoFile->name();
// On écrit le même nombre de secteurs que le fichier d'origine
// qDebug() << "écriture de" << isoFile->name() << "(" << isoFile->sectorCount() << "+" << isoFile->paddingAfter() << "secteurs) dans isoTemp au secteur" << secteur;
secteur = writeSectors(isoFile->newData(), destination, secteur, control, isoFile->sectorCount() + isoFile->paddingAfter());
if(secteur == -1) return false;
seek(destination->pos());
// Debug
if(destination->pos()%SECTOR_SIZE != 0) qWarning() << "destination error 2a" << (destination->pos()%SECTOR_SIZE) << isoFile->name();
if(destination->pos()/SECTOR_SIZE != secteur) qWarning() << "destination error 2b" << (destination->pos()/SECTOR_SIZE) << secteur << isoFile->name();
if(destination->pos() != pos()) qWarning() << "destination error 2c" << destination->pos() << pos() << isoFile->name();
// Envoi de la position courante à l'output
if(last_esti != (int)(control->baseEstimation + (destination->pos()/SECTOR_SIZE)*control->estimation)) {
last_esti = control->baseEstimation + (destination->pos()/SECTOR_SIZE)*control->estimation;
control->setIsoOut(last_esti);
}
}
// Données après les fichiers patchés
if(-1 == copyBytes(destination, size() - pos(), last_esti, control))
return false;
// Debug
if(destination->pos()%SECTOR_SIZE != 0) qWarning() << "destination error 3a" << (destination->pos()%SECTOR_SIZE);
if(destination->pos()/SECTOR_SIZE != sectorCount()) qWarning() << "destination error 3b" << (destination->pos()/SECTOR_SIZE) << secteur;
if(destination->pos() != pos()) qWarning() << "destination error 3c" << destination->pos() << pos();
// A la fin de l'ISO
// Fichiers trop gros mis à la fin de l'ISO
secteur = destination->pos()/SECTOR_SIZE;
foreach(const IsoFile *isoFile, writeToTheEnd) {
// qDebug() << "écriture de" << isoFile->name() << "(" << isoFile->sectorCount() << "secteurs) dans isoTemp (à la fin) au secteur" << secteur;
secteur = writeSectors(isoFile->newData(), destination, secteur, control);
if(secteur == -1) return false;
// Envoi de la position courante à l'output
if(last_esti != (int)(control->baseEstimation + (destination->pos()/SECTOR_SIZE)*control->estimation)) {
last_esti = control->baseEstimation + (destination->pos()/SECTOR_SIZE)*control->estimation;
control->setIsoOut(last_esti);
}
}
// Modifications données
if(destination->size() != size()) {
// volume_space_size (taille totale de l'ISO)
destination->seekIso(SECTOR_SIZE_DATA * 16 + 80);// sector 16 : pos 80 size 4+4
quint32 volume_space_size = destination->size()/SECTOR_SIZE, volume_space_size2 = qToBigEndian(volume_space_size);
destination->write((char *)&volume_space_size, 4);
destination->write((char *)&volume_space_size2, 4);
}
// Update ISO files locations
repairLocationSectors(directory, destination);
//Debug
// qDebug() << "vérification headers";
// int newSectorCount = destination->size()/SECTOR_SIZE;
// for(int i=0 ; i<newSectorCount ; ++i) {
// if(control->wasCanceled()) return false;
// destination->seek(12 + i*SECTOR_SIZE);
// if(destination->read(3) != IsoArchive::int2Header(i)) {
// destination->seek(12 + i*SECTOR_SIZE);
// qDebug() << "Erreur header" << i << destination->read(3).toHex();
// break;
// }
// }
// qDebug() << "vérification done";
if(destination->size()%SECTOR_SIZE != 0) qWarning() << "Invalid size" << destination->size();
// if(destination->size() != size()) qWarning() << "Taille différente" << (destination->size()/SECTOR_SIZE) << (size()/SECTOR_SIZE);
return true;
}
void IsoArchive::repairLocationSectors(IsoDirectory *directory, IsoArchive *newIso)
{
quint32 pos, oldSectorStart, newSectorStart, newSectorStart2, oldSize, newSize, newSize2;
QList<IsoDirectory *> dirs;
foreach(IsoFileOrDirectory *fileOrDir, directory->filesAndDirectories()) {
if(fileOrDir->isModified()) {
pos = fileOrDir->structPosition + 2;
oldSectorStart = fileOrDir->location();
oldSize = fileOrDir->size();
newSectorStart = fileOrDir->newLocation();
newSize = fileOrDir->newSize();
// location_extent
if(newSectorStart != oldSectorStart) {
newSectorStart2 = qToBigEndian(newSectorStart);
newIso->seekIso(pos);
newIso->writeIso((char *)&newSectorStart, 4);
newIso->writeIso((char *)&newSectorStart2, 4);
// qDebug() << "nouvelle position" << fileOrDir->name() << oldSectorStart << newSectorStart;
}
// data_length
if(newSize != oldSize) {
newSize2 = qToBigEndian(newSize);
newIso->seekIso(pos + 8);
newIso->writeIso((char *)&newSize, 4);
newIso->writeIso((char *)&newSize2, 4);
// qDebug() << "nouvelle taille" << fileOrDir->name() << oldSize << newSize;
}
}
if(fileOrDir->isDirectory()) {
dirs.append((IsoDirectory *)fileOrDir);
}
}
foreach(IsoDirectory *d, dirs) {
repairLocationSectors(d, newIso);
}
}
IsoDirectory *IsoArchive::rootDirectory() const
{
return _rootDirectory;
}
/*const QList<PathTable> &IsoArchive::getPathTables1a() const
{
return pathTables1a;
}
const QList<PathTable> &IsoArchive::getPathTables1b() const
{
return pathTables1b;
}
const QList<PathTable> &IsoArchive::getPathTables2a() const
{
return pathTables2a;
}
const QList<PathTable> &IsoArchive::getPathTables2b() const
{
return pathTables2b;
}*/
bool IsoArchive::openVolumeDescriptor(quint8 num)
{
// qDebug() << "sizeof(VolumeDescriptor)" << sizeof(VolumeDescriptor1) << sizeof(VolumeDescriptor2) << sizeof(IsoTime) << sizeof(DirectoryRecord);
if(!seek(SECTOR_SIZE * (16 + num) + 24)) {
return false;
}
// qint64 pos = this->pos();
if(read((char *)&volume.vd1, sizeof(VolumeDescriptor1)) != sizeof(VolumeDescriptor1)) {
return false;
}
// qint64 pos2 = this->pos();
if(read((char *)&volume.dr.length_dr, 1) != 1) {
return false;
}
if(read((char *)&volume.dr.extended_attr_record_length, 1) != 1) {
return false;
}
if(peek((char *)&volume.dr.drh, sizeof(DirectoryRecordHead)) != sizeof(DirectoryRecordHead)) {
return false;
}
if(!seek(this->pos() + 31)) {
return false;
}
volume.dr.name = read(qMin((int)volume.dr.drh.length_fi, MAX_FILENAME_LENGTH));
if(this->pos() & 1) {
if(!seek(this->pos() + 1)) {// padding
return false;
}
}
// qDebug() << "sizeDirectoryRecord : " << (this->pos() - pos2);
if(read((char *)&volume.vd2, sizeof(VolumeDescriptor2)) != sizeof(VolumeDescriptor2)) {
return false;
}
// qDebug() << "size : " << (this->pos() - pos);
return true;
}
void IsoArchive::openRootDirectory(quint32 sector, quint32 dataSize)
{
QList<quint32> dirVisisted;
_rootDirectory = _openDirectoryRecord(new IsoDirectory(QString(), sector, dataSize, 0), dirVisisted);
}
IsoDirectory *IsoArchive::_openDirectoryRecord(IsoDirectory *directories, QList<quint32> &dirVisisted)
{
const quint32 sector = directories->location(), dataSize = directories->size();
// anti-loop forever
if(dirVisisted.contains(sector)) return directories;
for(quint32 i=0 ; i<sectorCountData(dataSize) ; ++i)
dirVisisted.append(sector + i);
if(!seekToSector(sector)) {
goto _openDirectoryRecordError;
}
{
const quint32 maxPos = posIso() + dataSize;
while(posIso() < maxPos) {
DirectoryRecord dr;
const qint64 beginPos = posIso();
if(readIso((char *)&dr.length_dr, 1) != 1) {
goto _openDirectoryRecordError;
}
if(dr.length_dr == 0) {
// Next sector
seekToSector(currentSector() + 1);
continue;
}
if(readIso((char *)&dr.extended_attr_record_length, 1) != 1) {
goto _openDirectoryRecordError;
}
if(readIso((char *)&dr.drh, sizeof(DirectoryRecordHead)) != sizeof(DirectoryRecordHead)) {
goto _openDirectoryRecordError;
}
if(dr.drh.length_fi > MAX_FILENAME_LENGTH) break;
if(!seekIso(beginPos + 33)) {
goto _openDirectoryRecordError;
}
dr.name = readIso(dr.drh.length_fi);
int index = dr.name.lastIndexOf(SEPARATOR_2);
//dr.version = dr.name.mid(index+1);
dr.name = dr.name.left(index);
if(!seekIso(beginPos + dr.length_dr)) {
goto _openDirectoryRecordError;
}
// qDebug() << directoryRecordToString(dr) << beginPos;
if((dr.drh.file_flags >> 1) & 1) { // Directory
directories->add(new IsoDirectory(dr.name, dr.drh.location_extent, dr.drh.data_length, beginPos));
} else {
directories->add(new IsoFile(dr.name, dr.drh.location_extent, dr.drh.data_length, beginPos));
}
}
foreach(IsoDirectory *dir, directories->directories()) {
if(!dir->isSpecial()) {
// qDebug() << "IN DIR" << dir->name() << dir->location();
if(!_openDirectoryRecord(dir, dirVisisted)) {
goto _openDirectoryRecordError;
}
// qDebug() << "OUT DIR" << dir->name();
}
}
return directories;
}
_openDirectoryRecordError:
delete directories;
return NULL;
}
QList<PathTable> IsoArchive::pathTable(quint32 sector, quint32 dataSize)
{
QList<PathTable> pathTables;
if(!seekToSector(sector)) {
return pathTables;
}
const quint32 maxPos = posIso() + dataSize;
while(posIso() < maxPos) {
PathTable pt;
pt.position = posIso();
if(readIso((char *)&pt.length_di, 1) != 1
|| readIso((char *)&pt.extended_attr_record_length, 1) != 1
|| readIso((char *)&pt.location_extent, 4) != 4
|| readIso((char *)&pt.parent_directory_number, 2) != 2) {
break;
}
pt.name = readIso(pt.length_di);
if(pt.length_di & 1) {
if(!seekIso(posIso() + 1)) {
break;
}
}
pathTables.append(pt);
}
return pathTables;
}
QByteArray IsoArchive::file(const QString &path, quint32 maxSize)
{
return file(_rootDirectory->file(path), maxSize);
}
QByteArray IsoArchive::file(IsoFile *isoFile, quint32 maxSize)
{
if(isoFile == NULL) return QByteArray();
seekToFile(isoFile);
return readIso(maxSize == 0 ? isoFile->size() : qMin(maxSize, isoFile->size()));
}
bool IsoArchive::extract(const QString &path, const QString &destination, quint32 maxSize)
{
return extract(_rootDirectory->file(path), destination, maxSize);
}
bool IsoArchive::extract(IsoFile *isoFile, const QString &destination, quint32 maxSize)
{
if(isoFile == NULL) return false;
// QTime t;t.start();
maxSize = maxSize == 0 ? isoFile->size() : qMin(maxSize, isoFile->size());
char data[MAX_ISO_READ];
qint64 r, totalR=0;
QFile ret(destination);
if(!ret.open(QIODevice::WriteOnly | QIODevice::Truncate)) return false;
seekToFile(isoFile);
while(maxSize-totalR > 0 && (r = readIso(data, qMin((qint64)MAX_ISO_READ, maxSize-totalR))) > 0) {
ret.write(data, r);
totalR += r;
}
// qDebug() << "time" << t.elapsed();
return true;
}
void IsoArchive::extractAll(const QString &destination)
{
_extractAll(destination, _rootDirectory);
}
void IsoArchive::_extractAll(const QString &destination, IsoDirectory *directories, QString currentInternalDir)
{
// QTime t;t.start();
QDir dir(destination);
QString currentPath = dir.absolutePath().append('/');
// qDebug() << currentPath;
foreach(IsoFileOrDirectory *fileOrDir, directories->filesAndDirectories()) {
QCoreApplication::processEvents();
if(fileOrDir->isDirectory())// Directory
{
if(!fileOrDir->isSpecial()) {
dir.mkdir(fileOrDir->name());
_extractAll(currentPath + fileOrDir->name(), (IsoDirectory *)fileOrDir, currentInternalDir.isEmpty() ? fileOrDir->name() : currentInternalDir + '/' + fileOrDir->name());
}
}
else
{
// qDebug() << fileOrDir->name();
extract(currentInternalDir.isEmpty() ? fileOrDir->name() : currentInternalDir + '/' + fileOrDir->name(), currentPath + fileOrDir->name());
}
}
// qDebug() << "time" << t.elapsed();
}
bool IsoArchive::seekToFile(const QString &path)
{
return seekToFile(_rootDirectory->fileOrDirectory(path));
}
bool IsoArchive::seekToFile(IsoFileOrDirectory *isoFile)
{
if(isoFile == NULL) return false;
return seekToSector(isoFile->location());
}
IsoFile *IsoArchive::fileInfos(const QString &path)
{
return _rootDirectory->file(path);
}
qint32 IsoArchive::diffCountSectors(const QString &path, quint32 newSize) const
{
IsoFileOrDirectory *isoFile = _rootDirectory->fileOrDirectory(path);
if(isoFile == NULL) {
return false;
}