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/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.mapping;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.util.Set;
import java.util.zip.GZIPOutputStream;
import cuchaz.enigma.analysis.JarIndex;
public class MappingsRenamer
{
private JarIndex m_index;
private Mappings m_mappings;
public MappingsRenamer( JarIndex index, Mappings mappings )
{
m_index = index;
m_mappings = mappings;
}
public void setClassName( ClassEntry obf, String deobfName )
{
deobfName = NameValidator.validateClassName( deobfName );
ClassEntry targetEntry = new ClassEntry( deobfName );
if( m_mappings.containsDeobfClass( deobfName ) || m_index.containsObfClass( targetEntry ) )
{
throw new IllegalNameException( deobfName, "There is already a class with that name" );
}
ClassMapping classMapping = getOrCreateClassMapping( obf );
if( obf.isInnerClass() )
{
classMapping.setInnerClassName( obf.getInnerClassName(), deobfName );
}
else
{
m_mappings.m_classesByDeobf.remove( classMapping.getDeobfName() );
classMapping.setDeobfName( deobfName );
m_mappings.m_classesByDeobf.put( deobfName, classMapping );
}
updateDeobfMethodSignatures();
}
public void setFieldName( FieldEntry obf, String deobfName )
{
deobfName = NameValidator.validateFieldName( deobfName );
FieldEntry targetEntry = new FieldEntry( obf.getClassEntry(), deobfName );
if( m_mappings.containsDeobfField( obf.getClassEntry(), deobfName ) || m_index.containsObfField( targetEntry ) )
{
throw new IllegalNameException( deobfName, "There is already a field with that name" );
}
ClassMapping classMapping = getOrCreateClassMappingOrInnerClassMapping( obf.getClassEntry() );
classMapping.setFieldName( obf.getName(), deobfName );
}
public void setMethodTreeName( MethodEntry obf, String deobfName )
{
Set<MethodEntry> implementations = m_index.getRelatedMethodImplementations( obf );
deobfName = NameValidator.validateMethodName( deobfName );
for( MethodEntry entry : implementations )
{
MethodEntry targetEntry = new MethodEntry( entry.getClassEntry(), deobfName, entry.getSignature() );
if( m_mappings.containsDeobfMethod( entry.getClassEntry(), deobfName, entry.getSignature() ) || m_index.containsObfMethod( targetEntry ) )
{
String deobfClassName = getTranslator( TranslationDirection.Deobfuscating ).translateClass( entry.getClassName() );
throw new IllegalNameException( deobfName, "There is already a method with that name and signature in class " + deobfClassName );
}
}
for( MethodEntry entry : implementations )
{
setMethodName( entry, deobfName );
}
}
public void setMethodName( MethodEntry obf, String deobfName )
{
deobfName = NameValidator.validateMethodName( deobfName );
MethodEntry targetEntry = new MethodEntry( obf.getClassEntry(), deobfName, obf.getSignature() );
if( m_mappings.containsDeobfMethod( obf.getClassEntry(), deobfName, obf.getSignature() ) || m_index.containsObfMethod( targetEntry ) )
{
String deobfClassName = getTranslator( TranslationDirection.Deobfuscating ).translateClass( obf.getClassName() );
throw new IllegalNameException( deobfName, "There is already a method with that name and signature in class " + deobfClassName );
}
ClassMapping classMapping = getOrCreateClassMappingOrInnerClassMapping( obf.getClassEntry() );
String deobfSignature = getTranslator( TranslationDirection.Deobfuscating ).translateSignature( obf.getSignature() );
classMapping.setMethodNameAndSignature( obf.getName(), obf.getSignature(), deobfName, deobfSignature );
}
public void setArgumentName( ArgumentEntry obf, String deobfName )
{
deobfName = NameValidator.validateArgumentName( deobfName );
// NOTE: don't need to check arguments for name collisions with names determined by Procyon
if( m_mappings.containsArgument( obf.getMethodEntry(), deobfName ) )
{
throw new IllegalNameException( deobfName, "There is already an argument with that name" );
}
ClassMapping classMapping = getOrCreateClassMappingOrInnerClassMapping( obf.getClassEntry() );
classMapping.setArgumentName( obf.getMethodName(), obf.getMethodSignature(), obf.getIndex(), deobfName );
}
public void write( OutputStream out )
throws IOException
{
// TEMP: just use the object output for now. We can find a more efficient storage format later
GZIPOutputStream gzipout = new GZIPOutputStream( out );
ObjectOutputStream oout = new ObjectOutputStream( gzipout );
oout.writeObject( this );
gzipout.finish();
}
private ClassMapping getOrCreateClassMapping( ClassEntry obfClassEntry )
{
String obfClassName = obfClassEntry.getOuterClassName();
ClassMapping classMapping = m_mappings.m_classesByObf.get( obfClassName );
if( classMapping == null )
{
classMapping = new ClassMapping( obfClassName, obfClassName );
m_mappings.m_classesByObf.put( classMapping.getObfName(), classMapping );
m_mappings.m_classesByDeobf.put( classMapping.getDeobfName(), classMapping );
}
return classMapping;
}
private ClassMapping getOrCreateClassMappingOrInnerClassMapping( ClassEntry obfClassEntry )
{
ClassMapping classMapping = getOrCreateClassMapping( obfClassEntry );
if( obfClassEntry.isInnerClass() )
{
classMapping = classMapping.getOrCreateInnerClass( obfClassEntry.getInnerClassName() );
}
return classMapping;
}
private void updateDeobfMethodSignatures( )
{
for( ClassMapping classMapping : m_mappings.m_classesByObf.values() )
{
classMapping.updateDeobfMethodSignatures( getTranslator( TranslationDirection.Deobfuscating ) );
}
}
private Translator getTranslator( TranslationDirection direction )
{
return m_mappings.getTranslator( m_index.getTranslationIndex(), direction );
}
}
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