Rename unique fields

This commit is contained in:
Adam
2015-07-10 11:29:46 -04:00
parent 5781f08152
commit df11cdaded
9 changed files with 117 additions and 7 deletions

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@@ -67,6 +67,11 @@ public class Field
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public Type getType()
{

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@@ -2,6 +2,7 @@ package info.sigterm.deob.attributes.code;
import info.sigterm.deob.ClassFile;
import info.sigterm.deob.ConstantPool;
import info.sigterm.deob.Field;
import info.sigterm.deob.execution.Frame;
import java.io.DataOutputStream;
@@ -211,4 +212,8 @@ public abstract class Instruction
public void renameClass(ClassFile cf, String name)
{
}
public void renameField(Field f, String name)
{
}
}

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@@ -1,9 +1,9 @@
package info.sigterm.deob.attributes.code;
import info.sigterm.deob.ClassFile;
import info.sigterm.deob.Field;
import info.sigterm.deob.attributes.Code;
import info.sigterm.deob.attributes.code.instruction.types.JumpingInstruction;
import info.sigterm.deob.attributes.code.instructions.LDC;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
@@ -203,4 +203,10 @@ public class Instructions
for (Instruction i : instructions)
i.renameClass(cf, name);
}
public void renameField(Field f, String name)
{
for (Instruction i : instructions)
i.renameField(f, name);
}
}

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@@ -12,6 +12,7 @@ import info.sigterm.deob.execution.StackContext;
import info.sigterm.deob.execution.Type;
import info.sigterm.deob.pool.Class;
import info.sigterm.deob.pool.Field;
import info.sigterm.deob.pool.NameAndType;
import java.io.DataInputStream;
import java.io.DataOutputStream;
@@ -66,4 +67,17 @@ public class GetField extends Instruction implements GetFieldInstruction
if (field.getClassEntry().getName().equals(cf.getName()))
field = new Field(new Class(name), field.getNameAndType());
}
@Override
public void renameField(info.sigterm.deob.Field f, String name)
{
if (field.getNameAndType().getName().equals(f.getName()) && field.getClassEntry().getName().equals(f.getFields().getClassFile().getName()))
{
Class clazz = field.getClassEntry();
NameAndType nat = field.getNameAndType();
NameAndType newNat = new NameAndType(name, nat.getDescriptorType());
field = new Field(clazz, newNat);
}
}
}

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@@ -80,4 +80,17 @@ public class GetStatic extends Instruction implements GetFieldInstruction
if (field.getClassEntry().getName().equals(cf.getName()))
field = new Field(new Class(name), field.getNameAndType());
}
@Override
public void renameField(info.sigterm.deob.Field f, String name)
{
if (field.getNameAndType().getName().equals(f.getName()) && field.getClassEntry().getName().equals(f.getFields().getClassFile().getName()))
{
Class clazz = field.getClassEntry();
NameAndType nat = field.getNameAndType();
NameAndType newNat = new NameAndType(name, nat.getDescriptorType());
field = new Field(clazz, newNat);
}
}
}

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@@ -11,6 +11,7 @@ import info.sigterm.deob.execution.Stack;
import info.sigterm.deob.execution.StackContext;
import info.sigterm.deob.pool.Class;
import info.sigterm.deob.pool.Field;
import info.sigterm.deob.pool.NameAndType;
import java.io.DataInputStream;
import java.io.DataOutputStream;
@@ -61,4 +62,17 @@ public class PutField extends Instruction implements SetFieldInstruction
if (field.getClassEntry().getName().equals(cf.getName()))
field = new Field(new Class(name), field.getNameAndType());
}
@Override
public void renameField(info.sigterm.deob.Field f, String name)
{
if (field.getNameAndType().getName().equals(f.getName()) && field.getClassEntry().getName().equals(f.getFields().getClassFile().getName()))
{
Class clazz = field.getClassEntry();
NameAndType nat = field.getNameAndType();
NameAndType newNat = new NameAndType(name, nat.getDescriptorType());
field = new Field(clazz, newNat);
}
}
}

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@@ -11,6 +11,7 @@ import info.sigterm.deob.execution.Stack;
import info.sigterm.deob.execution.StackContext;
import info.sigterm.deob.pool.Class;
import info.sigterm.deob.pool.Field;
import info.sigterm.deob.pool.NameAndType;
import java.io.DataInputStream;
import java.io.DataOutputStream;
@@ -60,4 +61,17 @@ public class PutStatic extends Instruction implements SetFieldInstruction
if (field.getClassEntry().getName().equals(cf.getName()))
field = new Field(new Class(name), field.getNameAndType());
}
@Override
public void renameField(info.sigterm.deob.Field f, String name)
{
if (field.getNameAndType().getName().equals(f.getName()) && field.getClassEntry().getName().equals(f.getFields().getClassFile().getName()))
{
Class clazz = field.getClassEntry();
NameAndType nat = field.getNameAndType();
NameAndType newNat = new NameAndType(name, nat.getDescriptorType());
field = new Field(clazz, newNat);
}
}
}

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@@ -4,6 +4,7 @@ import java.util.List;
import info.sigterm.deob.ClassFile;
import info.sigterm.deob.ClassGroup;
import info.sigterm.deob.Field;
import info.sigterm.deob.Interfaces;
import info.sigterm.deob.Method;
import info.sigterm.deob.attributes.code.Exceptions;
@@ -74,21 +75,51 @@ public class RenameUnique
cf.setName(name);
}
private void renameField(ClassGroup group, Field field, String name)
{
for (ClassFile c : group.getClasses())
{
for (Method method : c.getMethods().getMethods())
{
// rename on instructions
if (method.getCode() != null)
{
Instructions instructions = method.getCode().getInstructions();
instructions.renameField(field, name);
}
}
}
field.setName(name);
}
public void run(ClassGroup group)
{
group.buildClassGraph();
int i = 0;
int classes = 0, fields = 0, methods = 0;
for (ClassFile cf : group.getClasses())
{
if (cf.getName().length() > 2)
continue;
renameClass(group, cf, "class" + i++);
// rename method
// rename fields
++classes;
}
// rename fields
for (ClassFile cf : group.getClasses())
for (Field field : cf.getFields().getFields())
{
if (field.getName().length() > 2)
continue;
renameField(group, field, "field" + i++);
++fields;
}
// rename methods
System.out.println("Uniquely renamed " + classes + " classes, " + fields + " fields, and " + methods + " methods");
}
}

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@@ -36,6 +36,14 @@ public class NameAndType extends PoolEntry
this.signature = sig;
}
public NameAndType(java.lang.String name, Type type)
{
super(ConstantType.NAME_AND_TYPE);
this.name = name;
this.type = type;
}
@Override
public void resolve(ConstantPool pool)
{