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k3b/libk3b/tools/k3biso9660.cpp

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/*
*
* $Id: k3biso9660.cpp 690529 2007-07-21 10:51:47Z trueg $
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* 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 2 of the License, or
* (at your option) any later version.
* See the file "COPYING" for the exact licensing terms.
*/
#include <config.h>
#include <k3bglobals.h>
#include "k3biso9660.h"
#include "k3biso9660backend.h"
#include <k3bdevice.h>
#include "libisofs/isofs.h"
#include <tqcstring.h>
#include <tqdir.h>
#include <tqfile.h>
#include <tqptrlist.h>
#include <kdebug.h>
/* callback function for libisofs */
int K3bIso9660::read_callback( char* buf, sector_t start, int len, void* udata )
{
K3bIso9660* isoF = static_cast<K3bIso9660*>(udata);
return isoF->read( start, buf, len );
}
/* callback function for libisofs */
int K3bIso9660::isofs_callback( struct iso_directory_record *idr, void *udata )
{
K3bIso9660 *iso = static_cast<K3bIso9660*> (udata);
TQString path, isoPath,user,group,symlink;
int i;
int access;
int time,cdate,adate;
rr_entry rr;
bool special=false;
K3bIso9660Entry *entry=0;
//K3bIso9660Entry *oldentry=0;
char z_algo[2],z_params[2];
int z_size=0;
if (isonum_711(idr->name_len)==1) {
switch (idr->name[0]) {
case 0:
path+=(".");
special=true;
break;
case 1:
path+=("..");
special=true;
break;
}
}
//
// First extract the raw iso9660 name
//
if( !special ) {
for( i = 0; i < isonum_711( idr->name_len ); i++ ) {
if( idr->name[i] )
isoPath += idr->name[i];
}
}
else
isoPath = path;
//
// Now see if we have RockRidge
//
if( !iso->plainIso9660() && ParseRR(idr,&rr) > 0 ) {
iso->m_rr = true;
if (!special)
path = TQString::fromLocal8Bit( rr.name );
symlink=rr.sl;
access=rr.mode;
time=0;//rr.st_mtime;
adate=0;//rr.st_atime;
cdate=0;//rr.st_ctime;
user.setNum(rr.uid);
group.setNum(rr.gid);
z_algo[0]=rr.z_algo[0];z_algo[1]=rr.z_algo[1];
z_params[0]=rr.z_params[0];z_params[1]=rr.z_params[1];
z_size=rr.z_size;
}
else {
access=iso->dirent->permissions() & ~S_IFMT;
adate=cdate=time=isodate_915(idr->date,0);
user=iso->dirent->user();
group=iso->dirent->group();
if (idr->flags[0] & 2) access |= S_IFDIR; else access |= S_IFREG;
if (!special) {
if( !iso->plainIso9660() && iso->jolietLevel() ) {
for (i=0;i<(isonum_711(idr->name_len)-1);i+=2) {
TQChar ch( be2me_16(*((ushort*)&(idr->name[i]))) );
if (ch==';') break;
path+=ch;
}
}
else {
// no RR, no Joliet, just plain iso9660
path = isoPath;
// remove the version field
int pos = path.find( ';' );
if( pos > 0 )
path.truncate( pos );
}
if (path.endsWith(".")) path.setLength(path.length()-1);
}
}
if( !iso->plainIso9660() )
FreeRR(&rr);
if (idr->flags[0] & 2) {
entry = new K3bIso9660Directory( iso, isoPath, path, access | S_IFDIR, time, adate, cdate,
user, group, symlink,
special ? 0 : isonum_733(idr->extent),
special ? 0 : isonum_733(idr->size) );
}
else {
entry = new K3bIso9660File( iso, isoPath, path, access, time, adate, cdate,
user, group, symlink, isonum_733(idr->extent), isonum_733(idr->size) );
if (z_size)
(static_cast<K3bIso9660File*>(entry))->setZF( z_algo, z_params, z_size );
}
iso->dirent->addEntry(entry);
return 0;
}
K3bIso9660Entry::K3bIso9660Entry( K3bIso9660* archive,
const TQString& isoName,
const TQString& name,
int access,
int date,
int adate,
int cdate,
const TQString& user,
const TQString& group,
const TQString& symlink )
: m_adate( adate ),
m_cdate( cdate ),
m_name( name ),
m_isoName( isoName ),
m_date( date ),
m_access( access ),
m_user( user ),
m_group( group ),
m_symlink( symlink ),
m_archive( archive )
{
}
K3bIso9660Entry::~K3bIso9660Entry()
{
}
K3bIso9660File::K3bIso9660File( K3bIso9660* archive,
const TQString& isoName,
const TQString& name,
int access,
int date,
int adate,
int cdate,
const TQString& user,
const TQString& group,
const TQString& symlink,
unsigned int pos,
unsigned int size )
: K3bIso9660Entry( archive, isoName, name, access, date, adate, cdate, user, group, symlink ),
m_startSector(pos),
m_size(size)
{
m_algo[0] = 0;
m_algo[1] = 0;
m_parms[0] = 0;
m_parms[1] = 0;
m_realsize = 0;
}
K3bIso9660File::~K3bIso9660File()
{
}
void K3bIso9660File::setZF(char algo[2],char parms[2],int realsize)
{
m_algo[0]=algo[0];m_algo[1]=algo[1];
m_parms[0]=parms[0];m_parms[1]=parms[1];
m_realsize=realsize;
}
int K3bIso9660File::read( unsigned int pos, char* data, int maxlen ) const
{
if( pos >= size() )
return 0;
unsigned long startSec = m_startSector + pos/2048;
int startSecOffset = pos%2048;
char* buffer = data;
bool buffered = false;
unsigned long bufferLen = maxlen+startSecOffset;
// cut to size
if( pos + maxlen > size() )
bufferLen = size() - pos + startSecOffset;
// pad to 2048
if( bufferLen%2048 )
bufferLen += (2048-(bufferLen%2048));
// we need to buffer if we changed the startSec or need a bigger buffer
if( startSecOffset || bufferLen > (unsigned int)maxlen ) {
buffered = true;
buffer = new char[bufferLen];
}
int read = archive()->read( startSec, buffer, bufferLen/2048 )*2048;
if( buffered ) {
if( read > 0 ) {
// cut to requested data
read -= startSecOffset;
if( read + pos > size() )
read = size() - pos;
if( read > maxlen )
read = maxlen;
::memcpy( data, buffer+startSecOffset, read );
}
delete [] buffer;
return read;
}
else {
// cut read data
if( read + pos > size() )
read = size() - pos;
return read;
}
}
bool K3bIso9660File::copyTo( const TQString& url ) const
{
TQFile of( url );
if( of.open( IO_WriteOnly ) ) {
char buffer[2048*10];
unsigned int pos = 0;
int r = 0;
while( ( r = read( pos, buffer, 2048*10 ) ) > 0 ) {
of.writeBlock( buffer, r );
pos += r;
}
return !r;
}
else {
kdDebug() << "(K3bIso9660File) could not open " << url << " for writing." << endl;
return false;
}
}
K3bIso9660Directory::K3bIso9660Directory( K3bIso9660* archive,
const TQString& isoName,
const TQString& name,
int access,
int date,
int adate,
int cdate,
const TQString& user,
const TQString& group,
const TQString& symlink,
unsigned int pos,
unsigned int size )
: K3bIso9660Entry( archive, isoName, name, access, date, adate, cdate, user, group, symlink ),
m_bExpanded( size == 0 ), // we can only expand entries that represent an actual directory
m_startSector(pos),
m_size(size)
{
m_entries.setAutoDelete( true );
}
K3bIso9660Directory::~K3bIso9660Directory()
{
}
void K3bIso9660Directory::expand()
{
if( !m_bExpanded ) {
archive()->dirent = this;
if( ProcessDir( &K3bIso9660::read_callback, m_startSector, m_size, &K3bIso9660::isofs_callback, archive() ) )
kdDebug() << "(K3bIso9660) failed to expand dir: " << name() << " with size: " << m_size << endl;
m_bExpanded = true;
}
}
TQStringList K3bIso9660Directory::entries() const
{
// create a fake const method to fool the user ;)
const_cast<K3bIso9660Directory*>(this)->expand();
TQStringList l;
TQDictIterator<K3bIso9660Entry> it( m_entries );
for( ; it.current(); ++it )
l.append( it.currentKey() );
return l;
}
TQStringList K3bIso9660Directory::iso9660Entries() const
{
// create a fake const method to fool the user ;)
const_cast<K3bIso9660Directory*>(this)->expand();
TQStringList l;
TQDictIterator<K3bIso9660Entry> it( m_iso9660Entries );
for( ; it.current(); ++it )
l.append( it.currentKey() );
return l;
}
K3bIso9660Entry* K3bIso9660Directory::entry( const TQString& n )
{
if( n.isEmpty() )
return 0;
expand();
TQString name(n);
// trailing slash ? -> remove
if( name.length() > 1 && name[name.length()-1] == '/' ) {
name.truncate( name.length()-1 );
}
int pos = name.find( '/' );
while( pos == 0 ) {
if( name.length() > 1 ) {
name = name.mid( 1 ); // remove leading slash
pos = name.find( '/' ); // look again
}
else // "/"
return this;
}
if ( pos != -1 ) {
TQString left = name.left( pos );
TQString right = name.mid( pos + 1 );
K3bIso9660Entry* e = m_entries[ left ];
if ( !e || !e->isDirectory() )
return 0;
return static_cast<K3bIso9660Directory*>(e)->entry( right );
}
return m_entries[ name ];
}
K3bIso9660Entry* K3bIso9660Directory::iso9660Entry( const TQString& n )
{
if( n.isEmpty() )
return 0;
expand();
TQString name(n);
// trailing slash ? -> remove
if( name.length() > 1 && name[name.length()-1] == '/' ) {
name.truncate( name.length()-1 );
}
int pos = name.find( '/' );
while( pos == 0 ) {
if( name.length() > 1 ) {
name = name.mid( 1 ); // remove leading slash
pos = name.find( '/' ); // look again
}
else // "/"
return this;
}
if ( pos != -1 ) {
TQString left = name.left( pos );
TQString right = name.mid( pos + 1 );
K3bIso9660Entry* e = m_iso9660Entries[ left ];
if ( !e || !e->isDirectory() )
return 0;
return static_cast<K3bIso9660Directory*>(e)->iso9660Entry( right );
}
return m_iso9660Entries[ name ];
}
const K3bIso9660Entry* K3bIso9660Directory::entry( const TQString& name ) const
{
return const_cast<K3bIso9660Directory*>(this)->entry( name );
}
const K3bIso9660Entry* K3bIso9660Directory::iso9660Entry( const TQString& name ) const
{
return const_cast<K3bIso9660Directory*>(this)->iso9660Entry( name );
}
void K3bIso9660Directory::addEntry( K3bIso9660Entry* entry )
{
m_entries.insert( entry->name(), entry );
m_iso9660Entries.insert( entry->isoName(), entry );
}
class K3bIso9660::Private
{
public:
Private()
: cdDevice(0),
fd(-1),
isOpen(false),
startSector(0),
plainIso9660(false),
backend(0) {
}
TQPtrList<K3bIso9660Directory> elToritoDirs;
TQPtrList<K3bIso9660Directory> jolietDirs;
TQPtrList<K3bIso9660Directory> isoDirs;
TQPtrList<K3bIso9660Directory> rrDirs; // RockRidge
K3bIso9660SimplePrimaryDescriptor primaryDesc;
K3bDevice::Device* cdDevice;
int fd;
bool isOpen;
// only used for direkt K3bDevice::Device access
unsigned int startSector;
bool plainIso9660;
K3bIso9660Backend* backend;
};
K3bIso9660::K3bIso9660( const TQString& filename )
: m_filename( filename )
{
d = new Private();
}
K3bIso9660::K3bIso9660( int fd )
{
d = new Private();
d->fd = fd;
}
K3bIso9660::K3bIso9660( K3bIso9660Backend* backend )
{
d = new Private();
d->backend = backend;
}
K3bIso9660::K3bIso9660( K3bDevice::Device* dev, unsigned int startSector )
{
d = new Private();
d->cdDevice = dev;
d->startSector = startSector;
}
K3bIso9660::~K3bIso9660()
{
close();
delete d->backend;
delete d;
}
void K3bIso9660::setStartSector( unsigned int startSector )
{
d->startSector = startSector;
}
void K3bIso9660::setPlainIso9660( bool b )
{
d->plainIso9660 = b;
}
bool K3bIso9660::plainIso9660() const
{
return d->plainIso9660;
}
int K3bIso9660::read( unsigned int sector, char* data, int count )
{
if( count == 0 )
return 0;
else
return d->backend->read( sector, data, count );
}
void K3bIso9660::addBoot(struct el_torito_boot_descriptor* bootdesc)
{
int i,size;
boot_head boot;
boot_entry *be;
TQString path;
K3bIso9660File *entry;
entry=new K3bIso9660File( this, "Catalog", "Catalog", dirent->permissions() & ~S_IFDIR,
dirent->date(), dirent->adate(), dirent->cdate(),
dirent->user(), dirent->group(), TQString(),
isonum_731(bootdesc->boot_catalog), 2048 );
dirent->addEntry(entry);
if (!ReadBootTable(&K3bIso9660::read_callback,isonum_731(bootdesc->boot_catalog),&boot,this)) {
i=1;
be=boot.defentry;
while (be) {
size=BootImageSize(&K3bIso9660::read_callback,
isonum_711(((struct default_entry*) be->data)->media),
isonum_731(((struct default_entry*) be->data)->start),
isonum_721(((struct default_entry*) be->data)->seccount),
this);
path="Default Image";
if (i>1) path += " (" + TQString::number(i) + ")";
entry=new K3bIso9660File( this, path, path, dirent->permissions() & ~S_IFDIR,
dirent->date(), dirent->adate(), dirent->cdate(),
dirent->user(), dirent->group(), TQString(),
isonum_731(((struct default_entry*) be->data)->start), size<<9 );
dirent->addEntry(entry);
be=be->next;
i++;
}
FreeBootTable(&boot);
}
}
bool K3bIso9660::open()
{
if( d->isOpen )
return true;
if( !d->backend ) {
// create a backend
if( !m_filename.isEmpty() )
d->backend = new K3bIso9660FileBackend( m_filename );
else if( d->fd > 0 )
d->backend = new K3bIso9660FileBackend( d->fd );
else if( d->cdDevice ) {
// now check if we have a scrambled video dvd
if( d->cdDevice->copyrightProtectionSystemType() == 1 ) {
kdDebug() << "(K3bIso9660) found encrypted dvd. using libdvdcss." << endl;
// open the libdvdcss stuff
d->backend = new K3bIso9660LibDvdCssBackend( d->cdDevice );
if( !d->backend->open() ) {
// fallback to devicebackend
delete d->backend;
d->backend = new K3bIso9660DeviceBackend( d->cdDevice );
}
}
else
d->backend = new K3bIso9660DeviceBackend( d->cdDevice );
}
}
d->isOpen = d->backend->open();
if( !d->isOpen )
return false;
iso_vol_desc *desc;
TQString path,tmp,uid,gid;
k3b_struct_stat buf;
int access,c_i,c_j;
struct el_torito_boot_descriptor* bootdesc;
/* We'll use the permission and user/group of the 'host' file except
* in Rock Ridge, where the permissions are stored on the file system
*/
if ( k3b_stat( TQFile::encodeName(m_filename), &buf ) < 0 ) {
/* defaults, if stat fails */
memset(&buf,0,sizeof(k3b_struct_stat));
buf.st_mode=0777;
}
uid.setNum(buf.st_uid);
gid.setNum(buf.st_gid);
access = buf.st_mode & ~S_IFMT;
int c_b=1;
c_i=1;c_j=1;
desc = ReadISO9660( &K3bIso9660::read_callback, d->startSector, this );
if (!desc) {
kdDebug() << "K3bIso9660::openArchive no volume descriptors" << endl;
close();
return false;
}
while (desc) {
m_rr = false;
switch (isonum_711(desc->data.type)) {
case ISO_VD_BOOT:
bootdesc=(struct el_torito_boot_descriptor*) &(desc->data);
if( !memcmp( EL_TORITO_ID, bootdesc->system_id, ISODCL(8,39) ) ) {
path="El Torito Boot";
if( c_b > 1 )
path += " (" + TQString::number(c_b) + ")";
dirent = new K3bIso9660Directory( this, path, path, access | S_IFDIR,
buf.st_mtime, buf.st_atime, buf.st_ctime, uid, gid, TQString() );
d->elToritoDirs.append( dirent );
addBoot(bootdesc);
c_b++;
}
break;
case ISO_VD_PRIMARY:
createSimplePrimaryDesc( (struct iso_primary_descriptor*)&desc->data );
// fall through
case ISO_VD_SUPPLEMENTARY:
{
struct iso_primary_descriptor* primaryDesc = (struct iso_primary_descriptor*)&desc->data;
struct iso_directory_record* idr = (struct iso_directory_record*)&primaryDesc->root_directory_record;
m_joliet = JolietLevel(&desc->data);
// skip joliet in plain iso mode
if( m_joliet && plainIso9660() )
break;
if (m_joliet) {
path = "Joliet level " + TQString::number(m_joliet);
if( c_j > 1 )
path += " (" + TQString::number(c_j) + ")";
}
else {
path = TQString::fromLocal8Bit( primaryDesc->volume_id, 32 );
if( c_i > 1 )
path += " (" + TQString::number(c_i) + ")";
}
dirent = new K3bIso9660Directory( this, path, path, access | S_IFDIR,
buf.st_mtime, buf.st_atime, buf.st_ctime, uid, gid, TQString() );
// expand the root entry
ProcessDir( &K3bIso9660::read_callback, isonum_733(idr->extent),isonum_733(idr->size),&K3bIso9660::isofs_callback,this);
if (m_joliet)
c_j++;
else
c_i++;
if( m_joliet )
d->jolietDirs.append( dirent );
else {
if( m_rr )
d->rrDirs.append( dirent );
d->isoDirs.append( dirent );
}
break;
}
}
desc = desc->next;
}
FreeISO9660(desc);
return true;
}
bool K3bIso9660::isOpen() const
{
return d->isOpen;
}
void K3bIso9660::createSimplePrimaryDesc( struct iso_primary_descriptor* desc )
{
d->primaryDesc.volumeId = TQString(TQString::fromLocal8Bit( desc->volume_id, 32 )).stripWhiteSpace();
d->primaryDesc.systemId = TQString(TQString::fromLocal8Bit( desc->system_id, 32 )).stripWhiteSpace();
d->primaryDesc.volumeSetId = TQString(TQString::fromLocal8Bit( desc->volume_set_id, 128 )).stripWhiteSpace();
d->primaryDesc.publisherId = TQString(TQString::fromLocal8Bit( desc->publisher_id, 128 )).stripWhiteSpace();
d->primaryDesc.preparerId = TQString(TQString::fromLocal8Bit( desc->preparer_id, 128 )).stripWhiteSpace();
d->primaryDesc.applicationId = TQString(TQString::fromLocal8Bit( desc->application_id, 128 )).stripWhiteSpace();
d->primaryDesc.volumeSetSize = isonum_723(desc->volume_set_size);
d->primaryDesc.volumeSetNumber = isonum_723(desc->volume_set_size);
d->primaryDesc.logicalBlockSize = isonum_723(desc->logical_block_size);
d->primaryDesc.volumeSpaceSize = isonum_733(desc->volume_space_size);
}
void K3bIso9660::close()
{
if( d->isOpen ) {
d->backend->close();
// Since the first isoDir is the KArchive
// root we must not delete it but all the
// others.
d->elToritoDirs.setAutoDelete(true);
d->jolietDirs.setAutoDelete(true);
d->isoDirs.setAutoDelete(true);
d->elToritoDirs.clear();
d->jolietDirs.clear();
d->isoDirs.clear();
d->isOpen = false;
}
}
const K3bIso9660Directory* K3bIso9660::firstJolietDirEntry() const
{
return d->jolietDirs.first();
}
const K3bIso9660Directory* K3bIso9660::firstIsoDirEntry() const
{
return d->isoDirs.first();
}
const K3bIso9660Directory* K3bIso9660::firstElToritoEntry() const
{
return d->elToritoDirs.first();
}
const K3bIso9660Directory* K3bIso9660::firstRRDirEntry() const
{
return d->rrDirs.first();
}
const K3bIso9660SimplePrimaryDescriptor& K3bIso9660::primaryDescriptor() const
{
return d->primaryDesc;
}
void K3bIso9660::debug() const
{
if( isOpen() ) {
kdDebug() << "System Id: " << primaryDescriptor().systemId << endl;
kdDebug() << "Volume Id: " << primaryDescriptor().volumeId << endl;
kdDebug() << "Volume Set Id: " << primaryDescriptor().volumeSetId << endl;
kdDebug() << "Preparer Id: " << primaryDescriptor().preparerId << endl;
kdDebug() << "Publisher Id: " << primaryDescriptor().publisherId << endl;
kdDebug() << "Application Id: " << primaryDescriptor().applicationId << endl;
kdDebug() << "Volume Set Size: " << primaryDescriptor().volumeSetSize << endl;
kdDebug() << "Volume Set Number: " << primaryDescriptor().volumeSetNumber << endl;
if( firstIsoDirEntry() ) {
kdDebug() << "First ISO Dir entry:" << endl;
kdDebug() << "----------------------------------------------" << endl;
debugEntry( firstIsoDirEntry(), 0 );
kdDebug() << "----------------------------------------------" << endl << endl;
}
if( firstRRDirEntry() ) {
kdDebug() << "First RR Dir entry:" << endl;
kdDebug() << "----------------------------------------------" << endl;
debugEntry( firstRRDirEntry(), 0 );
kdDebug() << "----------------------------------------------" << endl << endl;
}
if( firstJolietDirEntry() ) {
kdDebug() << "First Joliet Dir entry:" << endl;
kdDebug() << "----------------------------------------------" << endl;
debugEntry( firstJolietDirEntry(), 0 );
kdDebug() << "----------------------------------------------" << endl << endl;
}
}
}
void K3bIso9660::debugEntry( const K3bIso9660Entry* entry, int depth ) const
{
if( !entry ) {
kdDebug() << "(K3bIso9660::debugEntry) null entry." << endl;
return;
}
TQString spacer;
spacer.fill( ' ', depth*3 );
kdDebug() << spacer << "- " << entry->name() << " (" << entry->isoName() << ")" << endl;
if( entry->isDirectory() ) {
const K3bIso9660Directory* dir = dynamic_cast<const K3bIso9660Directory*>(entry);
TQStringList entries = dir->entries();
for( TQStringList::const_iterator it = entries.begin(); it != entries.end(); ++it ) {
debugEntry( dir->entry( *it ), depth+1 );
}
}
}
K3bIso9660SimplePrimaryDescriptor::K3bIso9660SimplePrimaryDescriptor()
: volumeSetSize(0),
volumeSetNumber(0),
logicalBlockSize(0),
volumeSpaceSize(0)
{
}
bool operator==( const K3bIso9660SimplePrimaryDescriptor& d1,
const K3bIso9660SimplePrimaryDescriptor& d2 )
{
return( d1.volumeId == d2.volumeId &&
d1.systemId == d2.systemId &&
d1.volumeSetId == d2.volumeSetId &&
d1.publisherId == d2.publisherId &&
d1.preparerId == d2.preparerId &&
d1.applicationId == d2.applicationId &&
d1.volumeSetSize == d2.volumeSetSize &&
d1.volumeSetNumber == d2.volumeSetNumber &&
d1.logicalBlockSize == d2.logicalBlockSize &&
d1.volumeSpaceSize == d2.volumeSpaceSize );
}
bool operator!=( const K3bIso9660SimplePrimaryDescriptor& d1,
const K3bIso9660SimplePrimaryDescriptor& d2 )
{
return( d1.volumeId != d2.volumeId ||
d1.systemId != d2.systemId ||
d1.volumeSetId != d2.volumeSetId ||
d1.publisherId != d2.publisherId ||
d1.preparerId != d2.preparerId ||
d1.applicationId != d2.applicationId ||
d1.volumeSetSize != d2.volumeSetSize ||
d1.volumeSetNumber != d2.volumeSetNumber ||
d1.logicalBlockSize != d2.logicalBlockSize ||
d1.volumeSpaceSize != d2.volumeSpaceSize );
}
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