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IsoArchive.h
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IsoArchive.h
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/****************************************************************************
** Makou Reactor Final Fantasy VII Field Script 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/>.
****************************************************************************/
#ifndef ISOARCHIVE_H
#define ISOARCHIVE_H
#include <QtCore>
#define MAX_ISO_READ 10000
#define MAX_FILENAME_LENGTH 207
#define SEPARATOR_1 '\x2E' // .
#define SEPARATOR_2 '\x3B' // ;
#define SECTOR_SIZE 2352
#define SECTOR_SIZE_DATA 2048
#define READ_MAX 10002432
//d-characters : [\w ]
//a-characters : [!"%&'\(\)*+,\-\./\w:;<=>? ] (+ SP)
typedef struct{
char year[4];
char month[2];
char day[2];
char hour[2];
char minute[2];
char second[2];
char millis[2];
qint8 GMT;
} IsoTime;
typedef struct pathTbl{
quint8 length_di;
quint8 extended_attr_record_length;
quint32 location_extent;
quint16 parent_directory_number;
QString name;
quint32 position;
} PathTable;
typedef struct{
quint32 location_extent;// little endian //first sector in the directory
quint32 location_extent2;// big endian
quint32 data_length;// little endian
quint32 data_length2;// big endian
quint8 year;// since 1900
quint8 month;
quint8 day;
quint8 hour;
quint8 minute;
quint8 second;
qint8 GMT;
quint8 file_flags;// Multi-Extent/Reserved/Reserved/Protection/Record/Associated File/Directory/Existence
quint8 file_unit_size;
quint8 interleave_grap_size;
quint16 volume_sequence_number;// little endian
quint16 volume_sequence_number2;// big endian
quint8 length_fi;
} DirectoryRecordHead;
typedef struct dirRec{
quint8 length_dr;
quint8 extended_attr_record_length;
DirectoryRecordHead drh;
QString name;
QString version;
// padding;
} DirectoryRecord;
typedef struct{
quint8 type;// 0x01 or 0xff
quint8 id[5];// CD001
quint8 version;// 1 = international standard
quint8 unused1;
quint8 system_id[32];
quint8 volume_id[32];
quint8 unused2[8];
quint32 volume_space_size;// little endian // number of sectors
quint32 volume_space_size2;// big endian
quint8 unused3[32];
quint16 volume_set_size;// little endian
quint16 volume_set_size2;// big endian
quint16 volume_sequence_number;// little endian
quint16 volume_sequence_number2;// big endian
quint16 logical_block_size;// little endian
quint16 logical_block_size2;// big endian
quint32 path_table_size;// little endian
quint32 path_table_size2;// big endian
quint32 type_path_table;// little endian
quint32 opt_type_path_table;// little endian
quint32 type_path_table2;// big endian
quint32 opt_type_path_table2;// big endian
} VolumeDescriptor1;
typedef struct{
quint8 volume_set_id[128];
quint8 publisher_id[128];
quint8 preparer_id[128];
quint8 application_id[128];
quint8 copyright_file_id[37];
quint8 abstract_file_id[37];
quint8 bibliographic_file_id[37];
IsoTime creation_date;
IsoTime modification_date;
IsoTime expiration_date;
IsoTime effective_date;
quint8 file_structure_version;
quint8 unused4;
quint8 application_data[512];
quint8 unused5[653];
} VolumeDescriptor2;
typedef struct{
VolumeDescriptor1 vd1;
DirectoryRecord dr;
VolumeDescriptor2 vd2;
} VolumeDescriptor;
class IsoFileOrDirectory
{
public:
virtual ~IsoFileOrDirectory();
const QString &name() const;
quint32 location() const;
quint32 size() const;
quint32 sectorCount() const;
quint32 newLocation() const;
quint32 newSize() const;
quint32 newSectorCount() const;
void setName(const QString &name);
void setLocation(quint32 location);
void setSize(quint32 size);
virtual bool isDirectory() const=0;
bool isFile() const;
virtual bool isModified() const;
virtual void applyModifications();
bool isSpecial() const;
qint64 structPosition;
void setPaddingAfter(quint8 after);
quint8 paddingAfter() const;
protected:
IsoFileOrDirectory(const QString &name, quint32 location, quint32 size, qint64 structPosition);
QString _name;
quint32 _location, _size;
quint32 _newLocation, _newSize;
quint8 _paddingAfter;
};
class IsoFile : public IsoFileOrDirectory
{
public:
IsoFile(const QString &name, quint32 location, quint32 size, qint64 structPosition);
bool isDirectory() const;
const QByteArray &newData() const;
void setData(const QByteArray &data);
bool isModified() const;
void applyModifications();
private:
QByteArray _newData;
bool dataChanged;
};
class IsoDirectory : public IsoFileOrDirectory
{
public:
IsoDirectory(const QString &name, quint32 location, quint32 size, qint64 structPosition);
virtual ~IsoDirectory();
bool isDirectory() const;
const QMap<QString, IsoFileOrDirectory *> &filesAndDirectories() const;
QList<IsoFile *> files() const;
QList<IsoDirectory *> directories() const;
IsoFileOrDirectory *fileOrDirectory(const QString &path) const;
IsoFile *file(const QString &path) const;
IsoDirectory *directory(const QString &path) const;
void add(IsoFileOrDirectory *fileOrDirectory);
private:
QMap<QString, IsoFileOrDirectory *> _filesAndDirectories;
};
class IsoControl
{
public:
IsoControl() : baseEstimation(0), estimation(100) {}
virtual void setIsoOut(int)=0;
virtual bool wasCanceled() { return false; }
int baseEstimation;
double estimation;
};
class IsoArchiveIO : public QFile
{
public:
IsoArchiveIO(const QString &name);
virtual ~IsoArchiveIO();
bool open(QIODevice::OpenMode mode);
qint64 posIso() const;
bool seekIso(qint64 off);
qint64 sizeIso() const;
qint64 readIso(char *data, qint64 maxSize);
QByteArray readIso(qint64 maxSize);
qint64 writeIso(const char *data, qint64 maxSize);
qint64 writeIso(const QByteArray &byteArray);
static inline QByteArray int2Header(quint32 id) {
quint8 h1, h2, h3;
if(id < 4350) {
h1 = 0;
h2 = dec2Hex(id/75 + 2);
h3 = dec2Hex(id - 75*(hex2Dec(h2) - 2));
} else {
h1 = dec2Hex((id + 150) / 4500);
h2 = dec2Hex((id + 150 - hex2Dec(h1)*4500) / 75);
h3 = dec2Hex(id + 150 - hex2Dec(h1)*4500 - hex2Dec(h2)*75);
}
return QByteArray().append((char)h1).append((char)h2).append((char)h3);
}
static inline QByteArray buildHeader(quint32 sector, quint8 type, quint8 mode=2) {
return QByteArray("\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00", 12)
.append(int2Header(sector)).append((char)mode)
.append("\x00\x00", 2).append((char)type).append('\x00')
.append("\x00\x00", 2).append((char)type).append('\x00');
}
static inline QByteArray buildFooter(quint32 sector) {
Q_UNUSED(sector)
//TODO (if possible): Checksum EDC/ECC (Error Detection Code & Error Correction Code)
return QByteArray(280, '\x00');
}
QByteArray sector(quint32 num, quint16 maxSize=SECTOR_SIZE_DATA);
QByteArray sectorHeader(quint32 num);
QByteArray sectorFooter(quint32 num);
quint32 currentSector() const;
quint32 sectorCount() const;
static quint32 sectorCountData(quint32 dataSize);
bool seekToSector(quint32 num);
protected:
qint64 writeSectors(const QByteArray &data, QIODevice *out, quint32 secteur, IsoControl *control, quint32 sectorCount=false);
int copyBytes(QIODevice *out, int size, int last_esti, IsoControl *control);
private:
virtual bool _open()=0;
static qint64 isoPos(qint64 pos);
static qint64 filePos(qint64 pos);
static inline quint8 hex2Dec(quint8 hex) {
return 10*(hex/16) + hex%16;
}
static inline quint8 dec2Hex(quint8 dec) {
return 16*(dec/10) + dec%10;
}
};
class IsoArchive : public IsoArchiveIO
{
public:
IsoArchive(const QString &name);
virtual ~IsoArchive();
bool pack(IsoArchive *destination, IsoControl *control, IsoDirectory *directory=NULL);
void applyModifications(IsoDirectory *directory);
QByteArray file(const QString &path, quint32 maxSize=0);
QByteArray file(IsoFile *isoFile, quint32 maxSize=0);
bool extract(const QString &path, const QString &destination, quint32 maxSize=0);
bool extract(IsoFile *isoFile, const QString &destination, quint32 maxSize=0);
void extractAll(const QString &destination);
bool seekToFile(const QString &path);
bool seekToFile(IsoFileOrDirectory *isoFile);
qint32 diffCountSectors(const QString &path, quint32 newSize) const;
IsoFile *fileInfos(const QString &path);
IsoDirectory *rootDirectory() const;
// const QList<PathTable> &getPathTables1a() const;
// const QList<PathTable> &getPathTables1b() const;
// const QList<PathTable> &getPathTables2a() const;
// const QList<PathTable> &getPathTables2b() const;
private:
bool _open();
bool openVolumeDescriptor(quint8 num=0);
void openRootDirectory(quint32 sector, quint32 dataSize=SECTOR_SIZE_DATA);
IsoDirectory *_openDirectoryRecord(IsoDirectory *directories, QList<quint32> &dirVisisted);
QList<PathTable> pathTable(quint32 sector, quint32 dataSize=SECTOR_SIZE_DATA);
// Returns index of file in "orderedFileList" who have paddingAfter >= minSectorCount
int findPadding(const QList<IsoFileOrDirectory *> &orderedFileList, quint32 minSectorCount);
// Returns files with padding after
QList<IsoFileOrDirectory *> getIntegrity() const;
static QString isoTimeToString(const IsoTime &time);
static QString volumeDescriptorToString(const VolumeDescriptor &vd);
static QString directoryRecordToString(const DirectoryRecord &dr);
static QString pathTableToString(const PathTable &pathTable, bool bigEndian=false);
void _extractAll(const QString &destination, IsoDirectory *directories, QString currentInternalDir=QString());
void _getIntegrity(QMap<quint32, IsoFileOrDirectory *> &files, IsoDirectory *directory) const;
QMap<quint32, IsoFile *> getModifiedFiles(IsoDirectory *directory) const;
void getModifiedFiles(QMap<quint32, IsoFile *> &files, IsoDirectory *directory) const;
static void repairLocationSectors(IsoDirectory *directory, IsoArchive *newIso);
VolumeDescriptor volume;
IsoDirectory *_rootDirectory;
// QList<PathTable> pathTables1a;
// QList<PathTable> pathTables1b;
// QList<PathTable> pathTables2a;
// QList<PathTable> pathTables2b;
};
#endif // ISOARCHIVE_H