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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.List;
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, !obf.isInnerClass());
List<ClassMapping> mappingChain = getOrCreateClassMappingChain(obf);
if (mappingChain.size() == 1) {
if (deobfName != null) {
// make sure we don't rename to an existing obf or deobf class
if (m_mappings.containsDeobfClass(deobfName) || m_index.containsObfClass(new ClassEntry(deobfName))) {
throw new IllegalNameException(deobfName, "There is already a class with that name");
}
}
ClassMapping classMapping = mappingChain.get(0);
m_mappings.setClassDeobfName(classMapping, deobfName);
} else {
ClassMapping outerClassMapping = mappingChain.get(mappingChain.size() - 2);
if (deobfName != null) {
// make sure we don't rename to an existing obf or deobf inner class
if (outerClassMapping.hasInnerClassByDeobf(deobfName) || outerClassMapping.hasInnerClassByObfSimple(deobfName)) {
throw new IllegalNameException(deobfName, "There is already a class with that name");
}
}
outerClassMapping.setInnerClassName(obf, deobfName);
}
}
public void removeClassMapping(ClassEntry obf) {
setClassName(obf, null);
}
public void markClassAsDeobfuscated(ClassEntry obf) {
String deobfName = obf.isInnerClass() ? obf.getInnermostClassName() : obf.getName();
List<ClassMapping> mappingChain = getOrCreateClassMappingChain(obf);
if (mappingChain.size() == 1) {
ClassMapping classMapping = mappingChain.get(0);
m_mappings.setClassDeobfName(classMapping, deobfName);
} else {
ClassMapping outerClassMapping = mappingChain.get(mappingChain.size() - 2);
outerClassMapping.setInnerClassName(obf, deobfName);
}
}
public void setFieldName(FieldEntry obf, String deobfName) {
deobfName = NameValidator.validateFieldName(deobfName);
FieldEntry targetEntry = new FieldEntry(obf.getClassEntry(), deobfName, obf.getType());
if (m_mappings.containsDeobfField(obf.getClassEntry(), deobfName, obf.getType()) || m_index.containsObfField(targetEntry)) {
throw new IllegalNameException(deobfName, "There is already a field with that name");
}
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setFieldName(obf.getName(), obf.getType(), deobfName);
}
public void removeFieldMapping(FieldEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.removeFieldMapping(classMapping.getFieldByObf(obf.getName(), obf.getType()));
}
public void markFieldAsDeobfuscated(FieldEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setFieldName(obf.getName(), obf.getType(), obf.getName());
}
public void setMethodTreeName(MethodEntry obf, String deobfName) {
Set<MethodEntry> implementations = m_index.getRelatedMethodImplementations(obf);
deobfName = NameValidator.validateMethodName(deobfName);
for (MethodEntry entry : implementations) {
Signature deobfSignature = m_mappings.getTranslator(TranslationDirection.Deobfuscating, m_index.getTranslationIndex()).translateSignature(obf.getSignature());
MethodEntry targetEntry = new MethodEntry(entry.getClassEntry(), deobfName, deobfSignature);
if (m_mappings.containsDeobfMethod(entry.getClassEntry(), deobfName, entry.getSignature()) || m_index.containsObfBehavior(targetEntry)) {
String deobfClassName = m_mappings.getTranslator(TranslationDirection.Deobfuscating, m_index.getTranslationIndex()).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.containsObfBehavior(targetEntry)) {
String deobfClassName = m_mappings.getTranslator(TranslationDirection.Deobfuscating, m_index.getTranslationIndex()).translateClass(obf.getClassName());
throw new IllegalNameException(deobfName, "There is already a method with that name and signature in class " + deobfClassName);
}
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setMethodName(obf.getName(), obf.getSignature(), deobfName);
}
public void removeMethodTreeMapping(MethodEntry obf) {
for (MethodEntry implementation : m_index.getRelatedMethodImplementations(obf)) {
removeMethodMapping(implementation);
}
}
public void removeMethodMapping(MethodEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setMethodName(obf.getName(), obf.getSignature(), null);
}
public void markMethodTreeAsDeobfuscated(MethodEntry obf) {
for (MethodEntry implementation : m_index.getRelatedMethodImplementations(obf)) {
markMethodAsDeobfuscated(implementation);
}
}
public void markMethodAsDeobfuscated(MethodEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setMethodName(obf.getName(), obf.getSignature(), obf.getName());
}
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.getBehaviorEntry(), deobfName)) {
throw new IllegalNameException(deobfName, "There is already an argument with that name");
}
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setArgumentName(obf.getMethodName(), obf.getMethodSignature(), obf.getIndex(), deobfName);
}
public void removeArgumentMapping(ArgumentEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.removeArgumentName(obf.getMethodName(), obf.getMethodSignature(), obf.getIndex());
}
public void markArgumentAsDeobfuscated(ArgumentEntry obf) {
ClassMapping classMapping = getOrCreateClassMapping(obf.getClassEntry());
classMapping.setArgumentName(obf.getMethodName(), obf.getMethodSignature(), obf.getIndex(), obf.getName());
}
public boolean moveFieldToObfClass(ClassMapping classMapping, FieldMapping fieldMapping, ClassEntry obfClass) {
classMapping.removeFieldMapping(fieldMapping);
ClassMapping targetClassMapping = getOrCreateClassMapping(obfClass);
if (!targetClassMapping.containsObfField(fieldMapping.getObfName(), fieldMapping.getObfType())) {
if (!targetClassMapping.containsDeobfField(fieldMapping.getDeobfName(), fieldMapping.getObfType())) {
targetClassMapping.addFieldMapping(fieldMapping);
return true;
} else {
System.err.println("WARNING: deobf field was already there: " + obfClass + "." + fieldMapping.getDeobfName());
}
}
return false;
}
public boolean moveMethodToObfClass(ClassMapping classMapping, MethodMapping methodMapping, ClassEntry obfClass) {
classMapping.removeMethodMapping(methodMapping);
ClassMapping targetClassMapping = getOrCreateClassMapping(obfClass);
if (!targetClassMapping.containsObfMethod(methodMapping.getObfName(), methodMapping.getObfSignature())) {
if (!targetClassMapping.containsDeobfMethod(methodMapping.getDeobfName(), methodMapping.getObfSignature())) {
targetClassMapping.addMethodMapping(methodMapping);
return true;
} else {
System.err.println("WARNING: deobf method was already there: " + obfClass + "." + methodMapping.getDeobfName() + methodMapping.getObfSignature());
}
}
return false;
}
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) {
List<ClassMapping> mappingChain = getOrCreateClassMappingChain(obfClassEntry);
return mappingChain.get(mappingChain.size() - 1);
}
private List<ClassMapping> getOrCreateClassMappingChain(ClassEntry obfClassEntry) {
List<ClassEntry> classChain = obfClassEntry.getClassChain();
List<ClassMapping> mappingChain = m_mappings.getClassMappingChain(obfClassEntry);
for (int i=0; i<classChain.size(); i++) {
ClassEntry classEntry = classChain.get(i);
ClassMapping classMapping = mappingChain.get(i);
if (classMapping == null) {
// create it
classMapping = new ClassMapping(classEntry.getName());
mappingChain.set(i, classMapping);
// add it to the right parent
if (i == 0) {
m_mappings.addClassMapping(classMapping);
} else {
mappingChain.get(i-1).addInnerClassMapping(classMapping);
}
}
}
return mappingChain;
}
}
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