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wiiqt/WiiQt/u8.cpp
giantpune c71ac45ab2 *u8: add support for checking if an archive was packed with wii.cs to allow fixing it 
use case-insensitivity.  seems all the nintendo tools are running on windows and in the system menu html, paths are case-insensitive.  it doesnt seem like there is anywhere where they would need to be the other way

* lz77: support for unpacking archives larger than 0xffffff bytes

* nusdownloader: dont try to write files to cache if there is not one set
2011-07-11 05:47:33 +00:00

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#include "u8.h"
#include "lz77.h"
#include "tools.h"
//#include "md5.h"
#include "ash.h"
#define U8_HEADER_ALIGNMENT 0x20 //wiibrew says 0x40, but wii.cs is using 0x20 and i havent heard of any bricks because of it
static quint32 swap24( quint32 i )
{
#if Q_BYTE_ORDER == Q_BIG_ENDIAN
return i & 0xffffff;
#else
int r = qFromBigEndian( i );
return r >> 8;
#endif
}
U8::U8( bool initialize, int type, const QStringList &names )
{
ok = false;
isLz77 = false;
wii_cs_error = false;
paths.clear();
nestedU8s.clear();
fst = NULL;
fstSize = 0;
headerType = type;
imetNames = names;
if( !initialize )
return;
//headerType = type;
//imetNames = names;
ok = CreateEmptyData();
}
bool U8::CreateEmptyData()
{
isLz77 = false;
nestedU8s.clear();
data = QByteArray( 0x20, '\0' );
//create a generic u8 with no real info in it. only a fst with a root node
QBuffer buf( &data );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "Can't create buffer";
data.clear();
return false;
}
buf.putChar( 'U' );
buf.putChar( '\xAA' );
buf.putChar( '8' );
buf.putChar( '\x2D' );
rootnode_offset = 0x00000020;
quint32 tmp = qFromBigEndian( rootnode_offset );
buf.write( (const char*)&tmp, 4 );
fstSize = 0x0000000D;
tmp = qFromBigEndian( fstSize );
buf.write( (const char*)&tmp, 4 );
data_offset = qFromBigEndian( 0x00000040 );
tmp = qFromBigEndian( data_offset );
buf.write( (const char*)&tmp, 4 );
buf.close();
//create the new fst
QByteArray fstArray = QByteArray( 0x20, '\0' );
fst = (FEntry*)( fstArray.data() );
fst[ 0 ].Type = 1;
fst[ 0 ].FileLength = qFromBigEndian( 0x00000001 );
NameOff = 0x0C;
data.append( fstArray );
//point the fst pointer to the new data
fst = (FEntry*)( data.data() + rootnode_offset );
ok = true;
return true;
}
bool U8::RenameEntry( const QString &path, const QString &newName )
{
qDebug() << "U8::RenameEntry(" << path << "," << newName << ")";
if( !ok )
{
qWarning() << "U8::RenameEntry -> archive has no data";
return false;
}
if( newName.contains( "/" ) )
{
qWarning() << "U8::RenameEntry -> newName cannot contain \'/\'";
return false;
}
//check if this is a path to a file in a nested archive
QMap<QString, U8 >::iterator i = nestedU8s.begin();
while( i != nestedU8s.constEnd() )
{
if( path.startsWith( i.key() ) && path != i.key() )
{
QString subPath = path;
subPath.remove( 0, i.key().size() + 1 );//remove the path of the archive itself + the slash
bool ret = i.value().RenameEntry( subPath, newName );
if( !ret )
{
qWarning() << "U8::RenameEntry -> error replacing data in child U8 archive";
return false;
}
//qDebug() << "child entry updated, now replacing child archive in this one";
return ReplaceEntry( i.key(),i.value().GetData() );
//NOTE - after replacing the entry, "i" is no longer valid. keep that in mind when changing this code. its a bitch to track down this bug
}
++i;
}
//make sure the new filename doesnt already exist
QString parentPath = path;
while( parentPath.startsWith( "/") )//remove leading "/"s
parentPath.remove( 0, 1 );
while( parentPath.endsWith( "/") )//remove trailing "/"s
parentPath.resize( parentPath.size() - 1 );
int slash = parentPath.lastIndexOf( "/" );
if( slash != -1 )
{
parentPath.chop( ( parentPath.size() - slash ) );
parentPath += "/" + newName;
}
else
parentPath = newName;
if( FindEntry( parentPath ) != -1 )
{
qWarning() << "U8::RenameEntry ->" << parentPath << "already exists in the archive";
return false;
}
//find the entry to rename
int entryToRename = FindEntry( path );
if( entryToRename == -1 )
{
qWarning() << "U8::RenameEntry" << path << "doesn\'t exists in the archive";
qWarning() << "choices are" << paths;
return false;
}
quint32 newNameLen = newName.size();
quint32 oldNameLen = FstName( entryToRename ).size();
int difference = newNameLen - oldNameLen;
quint32 nFstSize = fstSize + difference;
int dataAdjustment = 0;
if( RU( nFstSize, U8_HEADER_ALIGNMENT ) < RU( fstSize, U8_HEADER_ALIGNMENT ) )
dataAdjustment = - RU( ( fstSize - nFstSize ), U8_HEADER_ALIGNMENT );
else if( RU( nFstSize, U8_HEADER_ALIGNMENT ) > RU( fstSize, U8_HEADER_ALIGNMENT ) )
dataAdjustment = RU( ( nFstSize - fstSize ), U8_HEADER_ALIGNMENT );
qDebug() << "old size:" << hex << oldNameLen\
<< "new size:" << hex << newNameLen\
<< "difference:" << hex << difference
<< "dataAdjustment:" << hex << dataAdjustment;
QByteArray nFstData( ( qFromBigEndian( fst[ 0 ].FileLength ) ) * 0xc, '\0' );
FEntry *nfst = (FEntry*)( nFstData.data() );
//make the new root entry
nfst[ 0 ] = fst[ 0 ];
//the new data payload ( just copy the existing one )
QByteArray nPayload = data.right( data.size() - data_offset );
QByteArray nNameTable;
nNameTable.append( '\0' );//add a null byte for the root name
quint32 cnt = qFromBigEndian( fst[ 0 ].FileLength );//the number of entries
for( quint32 i = 1; i < cnt; i++ )
{
FEntry *e = &fst[ i ];//old entry
FEntry *ne = &nfst[ i ];//new entry
ne->NameOffset = swap24( nNameTable.size() );//offset to the new entry's name in the string table
//add the name to the new name table
if( i == (quint32)entryToRename )
{
nNameTable.append( newName.toLatin1() );
}
else
nNameTable.append( FstName( e ).toLatin1() );
nNameTable.append( '\0' );
if( e->Type )//nothing special to change for directories except the name offset
{
ne->Type = 1;
ne->ParentOffset = e->ParentOffset;
ne->NextOffset = e->NextOffset;
}
else//only need to change the name offset & the data offset for files
{
ne->Type = 0;
ne->FileOffset = qFromBigEndian( qFromBigEndian( e->FileOffset ) + dataAdjustment );// + qFromBigEndian( dataAdjustment );
//qFromBigEndian( (quint32)( 0x20 + RU( U8_HEADER_ALIGNMENT, nFstSize ) + nPayload.size() ) );
ne->FileLength = e->FileLength;
qDebug() << "old offset" << hex << qFromBigEndian( e->FileOffset ) << "new offset" << hex << qFromBigEndian( e->FileOffset ) + dataAdjustment;
}
}
//now put all the parts together to make a new U8 archive
nFstData.append( nNameTable );
data = QByteArray( 0x20, '\0' );
QBuffer buf( &data );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "U8::AddEntry -> Can't create buffer";
return -1;
}
buf.putChar( 'U' );
buf.putChar( '\xAA' );
buf.putChar( '8' );
buf.putChar( '\x2D' );
rootnode_offset = 0x00000020;
quint32 t = qFromBigEndian( rootnode_offset );
buf.write( (const char*)&t, 4 );
fstSize = nFstData.size();
t = qFromBigEndian( fstSize );
buf.write( (const char*)&t, 4 );
data_offset = RU( ( 0x20 + fstSize ), U8_HEADER_ALIGNMENT );
t = qFromBigEndian( data_offset );
buf.write( (const char*)&t, 4 );
buf.close();
data.append( nFstData );//add the fst
int padding = data_offset - data.size();//pad to 'data_offset' after the fst
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
data.append( nPayload );//add the actual file data
padding = RU( data.size(), 0x20 ) - data.size();//pad the entire thing to 0x20 bytes TOTO: should probably already be done, and this step is not really necessary
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
CreateEntryList();
//hexdump( data, 0, 0x100 );
//hexdump( data );
return true;
}
bool U8::ReplaceEntry( const QString &path, const QByteArray &nba, bool autoCompress )
{
//qDebug() << "U8::ReplaceEntry(" << path << ")";
if( !ok )
{
qWarning() << "U8::ReplaceEntry -> archive has no data";
return false;
}
//check if this is a path to a file in a nested archive
QMap<QString, U8 >::iterator i = nestedU8s.begin();
while( i != nestedU8s.constEnd() )
{
if( path.startsWith( i.key() ) && path != i.key() )
{
QString subPath = path;
subPath.remove( 0, i.key().size() + 1 );//remove the path of the archive itself + the slash
//qDebug() << "replacing file" << subPath << "in child U8" << i.key();
U8 ch = i.value();
QString chPath = i.key();
//qDebug() << "replacing" << subPath << "in child archive";
bool ret = ch.ReplaceEntry( subPath, nba, autoCompress );
if( !ret )
{
qWarning() << "U8::ReplaceEntry -> error replacing data in child U8 archive";
return false;
}
//qDebug() << "child entry updated, now replacing child archive in this one";
return ReplaceEntry( chPath, ch.GetData() );
//NOTE - after replacing the entry, "i" is no longer valid. keep that in mind when changing this code. its a bitch to track down this bug
}
++i;
}
//find the entry to replace
int entryToReplace = FindEntry( path );
if( entryToReplace == -1 )
{
qWarning() << "U8::ReplaceEntry" << path << "doesn\'t exists in the archive";
qWarning() << "choices are" << paths;
return false;
}
if( qFromBigEndian( fst[ entryToReplace ].Type ) )
{
qWarning() << "U8::ReplaceEntry -> replacing a directory is not supported" << path;
return false;
}
/*qDebug() << "old size:" << hex << oldSizePadded\
<< "new size:" << hex << newSizePadded\
<< "difference:" << hex << difference;*/
QByteArray newData = nba;
if( autoCompress )
{
QByteArray oldData = data.mid( qFromBigEndian( fst[ entryToReplace ].FileOffset ), qFromBigEndian( fst[ entryToReplace ].FileLength ) );
bool oldCompressed = ( LZ77::GetLz77Offset( oldData ) > -1 || IsAshCompressed( oldData ) );
if( oldCompressed && LZ77::GetLz77Offset( newData ) == -1 && !IsAshCompressed( newData ) )
{
newData = LZ77::Compress( newData );
}
}
quint32 newSizePadded = RU( newData.size(), 0x20 );
quint32 oldSizePadded = RU( qFromBigEndian( fst[ entryToReplace ].FileLength ), 0x20 );
int difference = newSizePadded - oldSizePadded;
data.remove( qFromBigEndian( fst[ entryToReplace ].FileOffset ), oldSizePadded );
QByteArray newPaddedData = newData;
if( newSizePadded > (quint32)newPaddedData.size() )
{
newPaddedData.append( QByteArray( newSizePadded - newPaddedData.size(), '\0' ) );
}
data.insert( qFromBigEndian( fst[ entryToReplace ].FileOffset ), newPaddedData );
if( newSizePadded == oldSizePadded )//the sized match, so nothing else to change
return true;
//point the fst to the new data
fst = (FEntry*)( data.data() + rootnode_offset );
//edit the changed size
FEntry *e = &fst[ entryToReplace ];
e->FileLength = qFromBigEndian( newData.size() );
//hexdump( (const void*)e, sizeof( FEntry ) );
//edit all the file offsets after the changed item
quint32 cnt = qFromBigEndian( fst[ 0 ].FileLength );
for( quint32 i = entryToReplace + 1; i < cnt; i++ )
{
FEntry *e = &fst[ i ];//old entry
if( e->Type )//nothing changes for directories
continue;
//qDebug() << "changed" << FstName( e ) << "offset from" << hex << qFromBigEndian( fst[ i ].FileOffset ) << "to" << qFromBigEndian( fst[ i ].FileOffset ) + difference;
e->FileOffset = qFromBigEndian( qFromBigEndian( fst[ i ].FileOffset ) + difference );
}
CreateEntryList();
//hexdump( data, 0, 0x100 );
//hexdump( data );
return true;
}
bool U8::RemoveEntry( const QString &path )
{
//qDebug() << "U8::RemoveEntry(" << path << ")";
if( !ok )
{
qWarning() << "U8::RemoveEntry -> archive has no data";
return false;
}
//check if this is a path to a file in a nested archive
QMap<QString, U8 >::iterator i = nestedU8s.begin();
while( i != nestedU8s.constEnd() )
{
if( path.startsWith( i.key() ) && path != i.key() )
{
QString subPath = path;
subPath.remove( 0, i.key().size() + 1 );//remove the path of the archive itself + the slash
U8 ch = i.value();
QString chPath = i.key();
//qDebug() << "deleting" << subPath << "in child archive";
bool ret = ch.RemoveEntry( subPath );
if( !ret )
{
qWarning() << "U8::RemoveEntry -> error replacing data in child U8 archive";
return false;
}
return ReplaceEntry( chPath, ch.GetData() );//insert the new nested archive in this one
//NOTE - after replacing the entry, "i" is no longer valid. keep that in mind when changing this code. its a bitch to track down this bug
}
++i;
}
//find the entry to delete
int entryToDelete = FindEntry( path );
if( entryToDelete == -1 )
{
qWarning() << "U8::RemoveEntry" << path << "doesn\'t exists in the archive";
return false;
}
//create a list of all the directory indexes that my have their size changed
QList<int> parents;
int parent;
quint32 numDeletedEntries;
quint32 fstLenToDelete;
if( fst[ entryToDelete ].Type )//deleting a directory
{
parent = qFromBigEndian( fst[ entryToDelete ].ParentOffset );
while( parent )
{
parents << parent;
parent = qFromBigEndian( fst[ parent ].ParentOffset );
}
numDeletedEntries = qFromBigEndian( fst[ entryToDelete ].NextOffset ) - entryToDelete;
fstLenToDelete = 0;
for( quint32 i = entryToDelete; i < qFromBigEndian( fst[ entryToDelete ].NextOffset ); i ++ )
{
fstLenToDelete += FstName( i ).size() + 1 + 0xc;
}
}
else//deleting a file
{
parent = entryToDelete - 1;
while( parent )
{
if( fst[ parent ].Type && qFromBigEndian( fst[ parent ].NextOffset ) > (quint32)entryToDelete )
{
parents << parent;
parent = qFromBigEndian( fst[ parent ].ParentOffset );
}
else
parent--;
}
numDeletedEntries = 1;
fstLenToDelete = FstName( entryToDelete ).size() + 1 + 0xc;
}
//qDebug() << "will delete" << numDeletedEntries << "entries";
quint32 nFstSize = fstSize - fstLenToDelete;//old fst size - 0xc bytes for each deleted entry and the length of its name + 1 null byte
//qDebug() << "nFstSize" << nFstSize;
QByteArray nFstData( ( qFromBigEndian( fst[ 0 ].FileLength ) - numDeletedEntries ) * 0xc, '\0' );
FEntry *nfst = (FEntry*)( nFstData.data() );
//the new data payload ( all the files )
QByteArray nPayload;
QByteArray nNameTable;
nNameTable.append( '\0' );//add a null byte for the root name
quint32 cnt = qFromBigEndian( fst[ 0 ].FileLength );//the number of entries + 1 for the new one
//make the new root entry
nfst[ 0 ] = fst[ 0 ];
nfst[ 0 ].FileLength = qFromBigEndian( cnt - numDeletedEntries );
QList<int> movedDirs;//keep a list of the directories that are shifted back so their children can be shifted too
for( quint32 i = 1; i < cnt; i++ )
{
if( i >= (quint32)entryToDelete && i < (quint32)( entryToDelete + numDeletedEntries ) )//skip deleted entries
continue;
//copy old entries and adjust as needed
quint8 adj = i < (quint32)entryToDelete ? 0 : numDeletedEntries;
quint32 ni = i - adj;
//qDebug() << "keeping" << FstName( i ) << "in the new archive ( moved from" << hex << i << "to" << hex << ni << ")";
//if( parents.contains( i ) )
//qDebug() << "\tthis is a parent of the deleted item";
FEntry *e = &fst[ i ];//old entry
FEntry *ne = &nfst[ ni ];//new entry
nfst[ ni ].NameOffset = swap24( nNameTable.size() );//offset to the new entry's name in the string table
//add the name to the new name table
nNameTable.append( FstName( e ).toLatin1() );
nNameTable.append( '\0' );
if( e->Type )//directory
{
ne->Type = 1;
if( !adj )//directories before the new entry
{
ne->ParentOffset = e->ParentOffset;
ne->NextOffset = qFromBigEndian( qFromBigEndian( e->NextOffset ) \
- ( parents.contains( i ) ? numDeletedEntries : 0 ) );
}
else//directories after the new entry
{
ne->ParentOffset = qFromBigEndian( qFromBigEndian( e->ParentOffset ) \
- ( movedDirs.contains( qFromBigEndian( e->ParentOffset ) ) ? numDeletedEntries : 0 ) );
ne->NextOffset = qFromBigEndian( qFromBigEndian( e->NextOffset ) - numDeletedEntries );
movedDirs << i;
//qDebug() << "e.parent:" << hex << qFromBigEndian( e->ParentOffset ) << "movedDirs:" << movedDirs;
//hexdump( (const void*)ne, sizeof( FEntry) );
}
}
else//file
{
ne->Type = 0;
ne->FileOffset = \
qFromBigEndian( (quint32)( 0x20 + RU( nFstSize, U8_HEADER_ALIGNMENT ) + nPayload.size() ) );
ne->FileLength = e->FileLength;
nPayload.append( data.mid( qFromBigEndian( e->FileOffset ), qFromBigEndian( e->FileLength ) ) );
int padding = RU( nPayload.size(), 0x20 ) - nPayload.size();//pad to 0x20 bytes between files
if( padding )
{
nPayload.append( QByteArray( padding, '\0' ) );
}
//qDebug() << "writing fileOffset of" << hex << ni << hex << (quint32)( 0x20 + RU( U8_HEADER_ALIGNMENT, nFstSize ) + nPayload.size() );
}
//hexdump( (const void*)ne, sizeof( FEntry) );
}
//hexdump( nFstData );
//now put all the parts together to make a new U8 archive
nFstData.append( nNameTable );
data = QByteArray( 0x20, '\0' );
QBuffer buf( &data );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "U8::AddEntry -> Can't create buffer";
return -1;
}
buf.putChar( 'U' );
buf.putChar( '\xAA' );
buf.putChar( '8' );
buf.putChar( '\x2D' );
rootnode_offset = 0x00000020;
quint32 t = qFromBigEndian( rootnode_offset );
buf.write( (const char*)&t, 4 );
fstSize = nFstData.size();
t = qFromBigEndian( fstSize );
buf.write( (const char*)&t, 4 );
data_offset = RU( ( 0x20 + fstSize ), U8_HEADER_ALIGNMENT );
t = qFromBigEndian( data_offset );
buf.write( (const char*)&t, 4 );
buf.close();
data.append( nFstData );//add the fst
int padding = data_offset - data.size();//pad to 'data_offset' after the fst
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
data.append( nPayload );//add the actual file data
padding = RU( data.size(), 0x20 ) - data.size();//pad the entire thing to 0x20 bytes TOTO: should probably already be done, and this step is not really necessary
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
//make sure the pirvate variables are correct
fst = (FEntry*)( data.data() + rootnode_offset );
NameOff = 0x0C * qFromBigEndian( fst[ 0 ].FileLength );
CreateEntryList();
//hexdump( data );
//qDebug() << "dataSize after removal:" << hex << data.size();
return true;
}
int U8::AddEntry( const QString &path, int type, const QByteArray &newData )
{
//qDebug() << "U8::AddEntry(" << path << "," << type << "," << hex << newData.size() << ")";
//make sure there is actually data to manipulate
if( !ok && !CreateEmptyData() )
{
return -1;
}
//check if this is a path to a file in a nested archive
QMap<QString, U8 >::iterator i = nestedU8s.begin();
while( i != nestedU8s.constEnd() )
{
if( path.startsWith( i.key() ) && path != i.key() )
{
QString subPath = path;
//make a copy of the string, as "i" will become invalid on replace entry, and create a crash that is a bitch to track down
QString thisPath = i.key();
U8 chVal = i.value();
//qDebug() << "adding entry" << subPath << "in child U8" << thisPath;
subPath.remove( 0, thisPath.size() + 1 );//remove the path of the archive itself + the slash
bool ret = chVal.AddEntry( subPath, type, newData );
if( !ret )
{
qWarning() << "U8::AddEntry -> error replacing data in child U8 archive";
return false;
}
if( !ReplaceEntry( thisPath, chVal.GetData() ) )//insert the new nested archive in this one
return -1;
//qDebug() << "done replacing the child entry in this archive, finding the index to return (" << thisPath << ")";
return FindEntry( thisPath );//just return the index of the nested archive
}
++i;
}
//make sure this path doesnt already exist
if( FindEntry( path ) != -1 )
{
qWarning() << "U8::AddEntry" << path << "already exists in the archive";
return -1;
}
//find the parent for this new entry
QString parentPath = path;
while( parentPath.startsWith( "/") )//remove leading "/"s
parentPath.remove( 0, 1 );
while( parentPath.endsWith( "/") )//remove trailing "/"s
parentPath.resize( parentPath.size() - 1 );
int parent = 0;
int slash = parentPath.lastIndexOf( "/" );
if( slash != -1 )
{
//parentPath.resize( ( parentPath.size() - slash ) - 2 );
parentPath.chop( ( parentPath.size() - slash ) );
parent = FindEntry( parentPath );
if( parent == -1 )//need to create subfolders for this fucker
{
parent = AddEntry( parentPath, 1 );
if( parent == -1 )
{
qWarning() << "U8::AddEntry -> could not create subfolders for" << path;
return -1;
}
}
if( !fst[ parent ].Type )//parent maps to a file, not folder
{
qWarning() << "U8::AddEntry -> can't add child entry to a file";
return -1;
}
}
//qDebug() << "adding entry to" << FstName( parent );
//find the index to insert the new path
int newEntry = qFromBigEndian( fst[ parent ].NextOffset );
//create a list of all the directory indexes that my have their size changed to hold the new entry
QList<int> parents;
while( parentPath.contains( "/" ) )
{
parents << FindEntry( parentPath );
int slash = parentPath.lastIndexOf( "/" );
parentPath.chop( ( parentPath.size() - slash ) );
}
parents << FindEntry( parentPath );
//qDebug() << "parents" << parents;
//create the new data
//the new fst
QString name = path;//get the actual name of this entry
int sl = name.lastIndexOf( "/" );
if( sl != -1 )
{
name.remove( 0, sl + 1 );
}
quint32 nFstSize = fstSize + 0x0C + name.size() + 1;//old fst size + 0xc bytes for the new entry + room for the new name in the string table
QByteArray nFstData( ( qFromBigEndian( fst[ 0 ].FileLength ) + 1 ) * 0xc, '\0' );
FEntry *nfst = (FEntry*)( nFstData.data() );
//the new data payload ( all the files )
QByteArray nPayload;
QByteArray nNameTable;
nNameTable.append( '\0' );//add a null byte for the root name
quint32 cnt = qFromBigEndian( fst[ 0 ].FileLength ) + 1;//the number of entries + 1 for the new one
//make the new root entry
nfst[ 0 ] = fst[ 0 ];
nfst[ 0 ].FileLength = qFromBigEndian( cnt );
QList<int> movedDirs;//keep a list of the directories that are shifted back so their children can be shifted too
for( quint32 i = 1; i < cnt; i++ )
{
nfst[ i ].NameOffset = swap24( nNameTable.size() );//offset to the new entry's name in the string table
if( i == (quint32)newEntry )//add the new entry
{
FEntry *ne = &nfst[ i ];
if( type )
{
ne->Type = 1;
ne->ParentOffset = qFromBigEndian( parent );
ne->NextOffset = qFromBigEndian( i + 1 );
}
else
{
ne->Type = 0;
ne->FileLength = qFromBigEndian( (quint32)newData.size() );
ne->FileOffset =\
qFromBigEndian( (quint32)( 0x20 + RU( nFstSize, U8_HEADER_ALIGNMENT ) + nPayload.size() ) );
nPayload.append( newData );
int padding = RU( nPayload.size(), 0x20 ) - nPayload.size();//pad to 0x20 bytes between files
if( padding )
{
nPayload.append( QByteArray( padding, '\0' ) );
}
}
nNameTable.append( name.toLatin1() );//add this entry's name to the table
nNameTable.append( '\0' );
continue;
}
//copy old entries and adjust as needed
quint8 adj = i < (quint32)newEntry ? 0 : 1;
quint32 ni = i - adj;
FEntry *e = &fst[ ni ];//old entry
FEntry *ne = &nfst[ i ];//new entry
//add the name to the new name table
nNameTable.append( FstName( e ).toLatin1() );
nNameTable.append( '\0' );
if( e->Type )
{
ne->Type = 1;
if( !adj )//directories before the new entry
{
ne->ParentOffset = e->ParentOffset;
ne->NextOffset = qFromBigEndian( qFromBigEndian( e->NextOffset ) \
+ ( parents.contains( i ) ? 1 : 0 ) );
}
else//directories after the new entry
{
movedDirs << ni;
ne->ParentOffset = qFromBigEndian( qFromBigEndian( e->ParentOffset ) \
+ ( movedDirs.contains( qFromBigEndian( e->ParentOffset ) ) ? 1 : 0 ) );
ne->NextOffset = qFromBigEndian( qFromBigEndian( e->NextOffset ) + 1 );
}
}
else//all file entries
{
ne->Type = 0;
ne->FileOffset = \
qFromBigEndian( (quint32)( 0x20 + RU( nFstSize, U8_HEADER_ALIGNMENT ) + nPayload.size() ) );
ne->FileLength = e->FileLength;
nPayload.append( data.mid( qFromBigEndian( e->FileOffset ), qFromBigEndian( e->FileLength ) ) );
int padding = RU( nPayload.size(), 0x20 ) - nPayload.size();//pad to 0x20 bytes between files
if( padding )
{
nPayload.append( QByteArray( padding, '\0' ) );
}
}
}
//now put all the parts together to make a new U8 archive
nFstData.append( nNameTable );
data = QByteArray( 0x20, '\0' );
QBuffer buf( &data );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "U8::AddEntry -> Can't create buffer";
return -1;
}
buf.putChar( 'U' );
buf.putChar( '\xAA' );
buf.putChar( '8' );
buf.putChar( '\x2D' );
rootnode_offset = 0x00000020;
quint32 t = qFromBigEndian( rootnode_offset );
buf.write( (const char*)&t, 4 );
fstSize = nFstData.size();
t = qFromBigEndian( fstSize );
buf.write( (const char*)&t, 4 );
data_offset = RU( ( 0x20 + fstSize ), U8_HEADER_ALIGNMENT );
t = qFromBigEndian( data_offset );
buf.write( (const char*)&t, 4 );
buf.close();
data.append( nFstData );//add the fst
int padding = data_offset - data.size();//pad to 'data_offset' after the fst
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
data.append( nPayload );//add the actual file data
padding = RU( data.size(), 0x20 ) - data.size();//pad the entire thing to 0x20 bytes TOTO: should probably already be done, and this step is not really necessary
if( padding )
{
data.append( QByteArray( padding, '\0' ) );
}
//make sure the pirvate variables are correct
fst = (FEntry*)( data.data() + rootnode_offset );
NameOff = 0x0C * qFromBigEndian( fst[ 0 ].FileLength );
//qDebug() << "done adding the entry";
CreateEntryList();
//hexdump( data );
return newEntry;
}
void U8::CreateEntryList()
{
//qDebug() << "U8::CreateEntryList";
paths.clear();
nestedU8s.clear();
fst = (FEntry*)( data.data() + rootnode_offset );
quint32 cnt = qFromBigEndian( fst[ 0 ].FileLength );
if( ( cnt * 0x0d ) + rootnode_offset > (quint32)data.size() )
{
qWarning() << "U8::CreateEntryList -> invalid archive";
ok = false;
data.clear();
paths.clear();
fst = NULL;
return;
}
NameOff = cnt * 0x0C;
bool fixWarn = false;//ony print the warning 1 time
//qDebug() << "cnt" << hex << cnt;
for( quint32 i = 1; i < cnt; ++i )//this is not the most effecient way to do things, but it seems to work ok and these archives are small enough that it happens fast anyways
{
//start at the beginning of the fst and enter every directory whos "nextoffset" is greater than this index,
//adding the names along the way and hopefully finding "i"
QString path;
quint32 current = 1;
quint32 folder = 0;
while( 1 )
{
if( !current )
{
qWarning() << "U8::CreateEntryList -> error parsing the archive";
break;
}
if( current == i )
{
path += FstName( i );
if( fst[ current ].Type )
{
//sanity check: make sure the parent offset is correct
if( folder != qFromBigEndian( fst[ current ].ParentOffset ) )
{
qWarning() << "U8::CreateEntryList -> error parsing the archive - recursion mismatch in"
<< path << "expected:" << hex << folder << "got:" << hex << qFromBigEndian( fst[ current ].ParentOffset )\
<< "(" << FstName( qFromBigEndian( fst[ current ].ParentOffset ) ) << ")";
//some tools use "recursion" instead of "parent offset".
//it just coincidentally works for archives such as the opening.bnr and .app since they dont have many folders to mess up
if( qFromBigEndian( fst[ current ].ParentOffset ) == (quint32)path.count( "/" ) )
{
if( !fixWarn )
{
qWarning() << "This archive was made by a broken tool such as U8Mii. I'm trying to fix it, but I can't make any promises";
fixWarn = true;
wii_cs_error = true;
}
#ifndef U8_DONT_FIX_RECURSION_ERRORS
fst[ current ].ParentOffset = qFromBigEndian( folder );
#endif
}
//#ifndef U8_DONT_FIX_RECURSION_ERRORS
// fst[ current ].ParentOffset = qFromBigEndian( folder );
//#endif
}
path += '/';
paths << path;
}
else
{
//add this file to the list of entries
paths << path;
//check if this file is really a U8 archive, and add it to the list of children
QByteArray chData = data.mid( qFromBigEndian( fst[ current ].FileOffset ), qFromBigEndian( fst[ current ].FileLength ) );
if( IsU8( chData ) )
{
U8 child( chData );
if( child.IsOK() )
{
nestedU8s.insert( path, child );
foreach( const QString &chPath, child.Entries() )
{
QString newPath = path + "/" + chPath;
paths << newPath;
}
}
}
}
break;
}
if( fst[ current ].Type && i < qFromBigEndian( fst[ current ].NextOffset ) )
{
path += FstName( current ) + "/";
folder = current;
current++;
continue;
}
current = NextEntryInFolder( current, folder );
}
//paths << path;
}
//qDebug() << "done";
//qDebug() << "paths" << paths;
}
U8::U8( const QByteArray &ba )
{
wii_cs_error = false;
//qDebug() << "U8::U8 dataSize:" << hex << ba.size();
Load( ba );
}
void U8::Load( const QByteArray &ba )
{
ok = false;
wii_cs_error = false;
isLz77 = false;
headerType = U8_Hdr_none;
paths.clear();
imetNames.clear();
/*if( ba.size() < 0x80 )
{
//qWarning() << "U8::Load:" << hex << ba.size();
//qWarning() << "U8::Load -> where is the rest of the data?";
return;
}*/
data = ba;
if( IsAshCompressed( data ) )//decrypt ASH0 files
data = DecryptAsh( data );
quint32 tmp;
int off = LZ77::GetLz77Offset( data );
int off2 = GetU8Offset( data );
if( off != -1 && ( off2 == -1 || ( off2 != -1 && off < off2 ) ) )
{
isLz77 = true;
data = LZ77::Decompress( data );
off2 = GetU8Offset( data );
}
if( off2 == -1 )
{
qDebug() << "This isnt a U8";
return;
}
data = data.mid( off2 );
QBuffer buf( &data );
if( !buf.open( QBuffer::ReadOnly ) )
{
qWarning() << "Can't create buffer";
return;
}
buf.seek( 4 );
buf.read( ( char*)&tmp, 4 );
rootnode_offset = qFromBigEndian( tmp );
if( rootnode_offset != 0x20 )
{
qWarning() << "rootnodeOffset" << hex << rootnode_offset;
qWarning() << hex << data.size();
hexdump( data );
}
buf.read( ( char*)&tmp, 4 );
fstSize = qFromBigEndian( tmp );
buf.read( ( char*)&tmp, 4 );
data_offset = qFromBigEndian( tmp );
buf.close();
CreateEntryList();
ReadHeader( ba );
ok = true;
//qDebug() << "loaded" << paths;
}
bool U8::IsOK()
{
return ok;
}
QString U8::FstName( const FEntry *entry )
{
//qDebug() << "U8::FstName";
if( entry == &fst[ 0 ] )
return QString();
int nameStart = swap24( entry->NameOffset ) + NameOff + rootnode_offset;
return data.mid( nameStart, nameStart + 0x100 );
}
QString U8::FstName( quint32 i )
{
if( i > fst[ 0 ].FileLength )
{
qWarning() << "U8::FstName -> index is out of range";
return QString();
}
return FstName( &fst[ i ] );
}
quint32 U8::NextEntryInFolder( quint32 current, quint32 directory )
{
//qDebug() << "U8::NextEntryInFolder(" << hex << current << "," << hex << directory << ")";
quint32 next = ( fst[ current ].Type ? qFromBigEndian( fst[ current ].FileLength ) : current + 1 );
//qDebug() << "next" << next << "len" << hex << qFromBigEndian( fst[ directory ].FileLength );
if( next < qFromBigEndian( fst[ directory ].FileLength ) )
return next;
return 0;
}
int U8::FindEntry( const QString &str, int d )
{
//qDebug() << "U8::FindEntry(" << str << "," << d << ")";
if( str.isEmpty() )
return 0;
if( str.startsWith( "/" ) )
{
QString r = str;
r.remove( 0, 1 );
return FindEntry( r, d );
}
if( !fst[ d ].Type )
{
qDebug() << "ERROR!!" << FstName( &fst[ d ] ) << "is not a directory";
return -1;
}
int next = d + 1;
FEntry *entry = &fst[ next ];
while( next )
{
QString item;
int sl = str.indexOf( "/" );
if( sl > -1 )
item = str.left( sl );
else
item = str;
if( !FstName( entry ).compare( item, Qt::CaseInsensitive ) )
//if( FstName( entry ) == item )
{
if( item == str || item + "/" == str )//this is the item we are looking for
{
return next;
}
//this item is a parent folder of one we are looking for
return FindEntry( str.right( ( str.size() - sl ) - 1 ), next );
}
//find the next entry in this folder
next = NextEntryInFolder( next, d );
entry = &fst[ next ];
}
//no entry with the given path was found
return -1;
}
const QByteArray U8::GetData( const QString &str, bool onlyPayload )
{
//qDebug() << "U8::GetData(" << str << ")";
if( str.isEmpty() )//give the data for this whole archive
{
if( onlyPayload )
return data;
//qDebug() << "U8::GetData -> returning all the data for this archive. headerType:" << headerType;
QByteArray ret = data;
switch( headerType )
{
case U8_Hdr_IMET_app:
case U8_Hdr_IMET_bnr:
ret = AddIMET( headerType );//data is lz77 compressed in this function if it needs to be
break;
case U8_Hdr_IMD5:
{
if( isLz77 )
ret = LZ77::Compress( ret );
ret = AddIMD5( ret );
//hexdump( ret, 0, 0x40 );
}
break;
default:
break;
}
return ret;
}
//check if this is a path to a file in a nested archive
QMap<QString, U8 >::iterator i = nestedU8s.begin();
while( i != nestedU8s.constEnd() )
{
if( str.startsWith( i.key() ) && str != i.key() )
{
QString subPath = str;
subPath.remove( 0, i.key().size() + 1 );//remove the path of the archive itself + the slash
return i.value().GetData( subPath, onlyPayload );
}
++i;
}
int index = FindEntry( str );
if( index < 0 )
{
qWarning() << "U8::GetData" << str << "was not found in the archive";
return QByteArray();
}
if( fst[ index ].Type )
{
qWarning() << "U8::GetData" << str << "is a directory";
return QByteArray();
}
QByteArray ret = data.mid( qFromBigEndian( fst[ index ].FileOffset ), qFromBigEndian( fst[ index ].FileLength ) );
//hexdump( ret, 0, 0x40 );
if( onlyPayload )
{
if( LZ77::GetLz77Offset( ret ) != -1 )
ret = LZ77::Decompress( ret );
else if( IsAshCompressed( ret ) )
ret = DecryptAsh( ret );
}
return ret;
}
quint32 U8::GetSize( const QString &str )
{
if( str.isEmpty() )
{
return data.size();
}
int index = FindEntry( str );
if( index < 0 )
{
qWarning() << "U8::GetSize" << str << "was not found in the archive";
return 0;
}
if( fst[ index ].Type )
{
qWarning() << "U8::GetSize" << str << "is a directory";
return 0;
}
return qFromBigEndian( fst[ index ].FileLength );
}
const QStringList U8::Entries()
{
return paths;
}
int U8::GetU8Offset( const QByteArray &ba )
{
QByteArray start = ba.left( 5000 );
return start.indexOf( "U\xAA\x38\x2d" );
}
bool U8::IsU8( const QByteArray &ba )
{
QByteArray data = ba;
if( IsAshCompressed( data ) )//decrypt ASH0 files
data = DecryptAsh( data );
int off = LZ77::GetLz77Offset( data );//decrypt LZ77
if( off != -1 )
data = LZ77::Decompress( data );
QByteArray start = data.left( 5000 );
return start.indexOf( "U\xAA\x38\x2d" ) != -1;
}
#define IMET_MAX_NAME_LEN 0x2a
typedef struct
{
quint32 sig; // "IMET"
quint32 unk1;
quint32 unk2;
quint32 filesizes[ 3 ];
quint32 unk3;
quint16 names[ 10 ][ IMET_MAX_NAME_LEN ];
quint8 zeroes2[ 0x24c ];
quint8 md5[ 0x10 ];
} IMET;
void U8::ReadHeader( const QByteArray &ba )
{
//qDebug() << "U8::ReadHeader(" << hex << ba.size() << ")";
//hexdump( ba );
headerType = U8_Hdr_none;
imetNames.clear();
if( ba.startsWith( "IMD5" ) )//dont bother to read any more data
{
//qDebug() << "IMD5 header";
headerType = U8_Hdr_IMD5;
return;
}
QByteArray start = ba.left( sizeof( IMET ) + 0x80 );
QBuffer buf( &start );
if( !buf.open( QBuffer::ReadOnly ) )
{
qWarning() << "U8::ReadHeader Can't create buffer";
return;
}
int off = start.indexOf( "IMET" );
//qDebug() << "imet offset" << hex << off << "u8 offset" << hex << GetU8Offset( ba );
if( off == 0x40 || off == 0x80 )//read imet header
{
if( off > GetU8Offset( ba ) )//in case somebody wants to put a IMET archive inside another U8 for whatever reason
return;
if( off == 0x40 )
headerType = U8_Hdr_IMET_bnr;
else
headerType = U8_Hdr_IMET_app;
buf.seek( off );
IMET imet;
buf.read( (char*)&imet, sizeof( IMET ) );
buf.close();
for( int h = 0; h < 10; h ++ )
{
QString name;
for( int i = 0; i < IMET_MAX_NAME_LEN && imet.names[ h ][ i ] != 0; i++ )//no need to switch endian, 0x0000 is a palendrome
name += QChar( qFromBigEndian( imet.names[ h ][ i ] ) );
imetNames << name;
}
//done
return;
}
}
QByteArray U8::AddIMD5( QByteArray ba )
{
quint32 size = ba.size();
/*MD5 hash;
hash.update( ba.data(), size );
hash.finalize();*/
size = qFromBigEndian( size );
QByteArray imd5;
QBuffer buf( &imd5 );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "U8::AddIMD5 Can't create buffer";
return QByteArray();
}
buf.putChar( 'I' );
buf.putChar( 'M' );
buf.putChar( 'D' );
buf.putChar( '5' );
buf.write( (const char*)&size, 4 );
buf.seek( 0x10 );
buf.write( GetMd5( ba ) );
//buf.write( (const char*)hash.hexdigestChar(), 16 );
buf.close();
//qDebug() << hash.hexdigest().c_str();
//hexdump( (void*)imd5.data(), 0x20 );
ba.prepend( imd5 );
return ba;
}
const QByteArray U8::AddIMD5()
{
QByteArray ba = data;
ba = AddIMD5( ba );
return ba;
}
QByteArray U8::GetIMET( const QStringList &names, int paddingType, quint32 iconSize, quint32 bannerSize, quint32 soundSize )
{
QByteArray ret = QByteArray( sizeof( IMET ) + 0x40, '\0' );
QBuffer buf( &ret );
if( !buf.open( QBuffer::WriteOnly ) )
{
qWarning() << "U8::GetIMET Can't create buffer";
return QByteArray();
}
buf.seek( 0 + 0x40 );
buf.putChar( 'I' );
buf.putChar( 'M' );
buf.putChar( 'E' );
buf.putChar( 'T' );
buf.seek( 6 + 0x40 );
buf.putChar( '\x6' );
buf.seek( 11 + 0x40 );
buf.putChar( '\x3' );
quint32 tmp = qFromBigEndian( iconSize );
buf.write( (char*)&tmp, 4 );
tmp = qFromBigEndian( bannerSize );
buf.write( (char*)&tmp, 4 );
tmp = qFromBigEndian( soundSize );
buf.write( (char*)&tmp, 4 );
int nameOffset = 0x1c + 0x40;
int numNames = names.size();
for( int i = 0; i < numNames; i++ )
{
QString name = names.at( i );
int nameLen = name.size();
buf.seek( nameOffset + ( IMET_MAX_NAME_LEN * i * 2 ) );
for( int j = 0; j < nameLen; j++ )
{
quint16 letter = qFromBigEndian( name.at( j ).unicode() );
buf.write( ( const char*)&letter, 2 );
}
}
/*MD5 hash;
hash.update( ret.data(), sizeof( IMET ) + 0x40 );
hash.finalize();*/
buf.seek( 0x5f0 );
buf.write( GetMd5( ret ) );
//buf.write( (const char*)hash.hexdigestChar(), 16 );
buf.close();
switch( paddingType )
{
case U8_Hdr_IMET_app:
ret.prepend( QByteArray( 0x40, '\0' ) );
break;
case U8_Hdr_IMET_bnr:
break;
default:
ret.remove( 0, 0x40 );
break;
}
return ret;
}
const QStringList &U8::IMETNames()
{
return imetNames;
}
void U8::SetImetNames( const QStringList &names )
{
imetNames.clear();
imetNames = names;
}
const QByteArray U8::AddIMET( int paddingType )
{
QByteArray ret = GetData( "meta/icon.bin" );
quint32 iconSize;
quint32 bannerSize;
quint32 soundSize;
//if these are lz77 compressed, write the uncompressed size to the header ?bannerbomb?
//otherwise write the size - 0x20 ( imd5 header size )
if( LZ77::GetLz77Offset( ret ) != -1 )
iconSize = LZ77::GetDecompressedSize( ret );
else
iconSize = ret.size() - 0x20;
ret = GetData( "meta/banner.bin" );
if( LZ77::GetLz77Offset( ret ) != -1 )
bannerSize = LZ77::GetDecompressedSize( ret );
else
bannerSize = ret.size() - 0x20;
ret = GetData( "meta/sound.bin" );
if( LZ77::GetLz77Offset( ret ) != -1 )
soundSize = LZ77::GetDecompressedSize( ret );
else
soundSize = ret.size() - 0x20;
ret = GetIMET( imetNames, paddingType, iconSize, bannerSize, soundSize );
if( isLz77 )//really? can the entire banner be lz77 compressed?
ret += LZ77::Compress( data );
else
ret += data;
return ret;
}
int U8::GetHeaderType()
{
return headerType;
}
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