ra/runelite
1
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases Wiki Activity

Cleanup some of the old encr stuff

Browse Source
This commit is contained in:
Adam
2015-10-10 10:35:20 -04:00
parent fd973a0a95
commit bd427975ae
19 changed files with 25 additions and 646 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/main/java/net/runelite/deob/attributes/code/instructions/Dup.java
View File

@@ -28,13 +28,11 @@ public class Dup extends Instruction implements DupInstruction
ins.pop(obj);
StackContext ctx = new StackContext(ins, obj.getType());
ctx.encryption = obj.encryption;
stack.push(ctx);
ins.push(ctx);
ctx = new StackContext(ins, obj.getType());
ctx.encryption = obj.encryption;
stack.push(ctx);
ins.push(ctx);

4
src/main/java/net/runelite/deob/attributes/code/instructions/Dup2.java
View File

@@ -36,14 +36,12 @@ public class Dup2 extends Instruction implements DupInstruction
if (two != null)
{
StackContext ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
StackContext ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(one);
ins.push(ctx);
@@ -51,14 +49,12 @@ public class Dup2 extends Instruction implements DupInstruction
if (two != null)
{
ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(one);
ins.push(ctx);

5
src/main/java/net/runelite/deob/attributes/code/instructions/Dup2_X1.java
View File

@@ -38,20 +38,17 @@ public class Dup2_X1 extends Instruction implements DupInstruction
if (two != null)
{
StackContext ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
StackContext ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);
ctx = new StackContext(ins, three.getType());
ctx.encryption = three.encryption;
stack.push(ctx);
ins.push(ctx);
@@ -59,14 +56,12 @@ public class Dup2_X1 extends Instruction implements DupInstruction
if (two != null)
{
ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);

6
src/main/java/net/runelite/deob/attributes/code/instructions/Dup2_X2.java
View File

@@ -43,14 +43,12 @@ public class Dup2_X2 extends Instruction implements DupInstruction
if (two != null)
{
StackContext ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
StackContext ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(one);
ins.push(ctx);
@@ -58,14 +56,12 @@ public class Dup2_X2 extends Instruction implements DupInstruction
if (four != null)
{
ctx = new StackContext(ins, four.getType());
ctx.encryption = four.encryption;
stack.push(ctx);
ins.push(ctx);
}
ctx = new StackContext(ins, three.getType());
ctx.encryption = three.encryption;
stack.push(one);
ins.push(ctx);
@@ -73,14 +69,12 @@ public class Dup2_X2 extends Instruction implements DupInstruction
if (two != null)
{
ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
}
ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(one);
ins.push(ctx);

3
src/main/java/net/runelite/deob/attributes/code/instructions/Dup_X1.java
View File

@@ -34,19 +34,16 @@ public class Dup_X1 extends Instruction implements DupInstruction
ins.pop(one, two);
StackContext ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);
ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);

4
src/main/java/net/runelite/deob/attributes/code/instructions/Dup_X2.java
View File

@@ -35,7 +35,6 @@ public class Dup_X2 extends Instruction implements DupInstruction
ins.pop(three);
StackContext ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);
@@ -43,20 +42,17 @@ public class Dup_X2 extends Instruction implements DupInstruction
if (three != null)
{
ctx = new StackContext(ins, three.getType());
ctx.encryption = three.encryption;
stack.push(ctx);
ins.push(ctx);
}
ctx = new StackContext(ins, two.getType());
ctx.encryption = two.encryption;
stack.push(ctx);
ins.push(ctx);
ctx = new StackContext(ins, one.getType());
ctx.encryption = one.encryption;
stack.push(ctx);
ins.push(ctx);

12
src/main/java/net/runelite/deob/attributes/code/instructions/GetField.java
View File

@@ -53,18 +53,6 @@ public class GetField extends Instruction implements GetFieldInstruction
ins.pop(object);
StackContext ctx = new StackContext(ins, new Type(field.getNameAndType().getDescriptorType()).toStackType());
Encryption encryption = frame.getExecution().getEncryption();
net.runelite.deob.Field f = getMyField();
if (encryption != null && f != null)
{
Pair pair = encryption.getField(f);
if (pair != null)
{
ctx.encryption = pair.getter;
}
}
stack.push(ctx);
ins.push(ctx);

12
src/main/java/net/runelite/deob/attributes/code/instructions/GetStatic.java
View File

@@ -50,18 +50,6 @@ public class GetStatic extends Instruction implements GetFieldInstruction
Stack stack = frame.getStack();
StackContext ctx = new StackContext(ins, new Type(field.getNameAndType().getDescriptorType()).toStackType());
Encryption encryption = frame.getExecution().getEncryption();
net.runelite.deob.Field f = getMyField();
if (f != null && encryption != null)
{
Pair pair = encryption.getField(f);
if (pair != null)
{
ctx.encryption = pair.getter;
}
}
stack.push(ctx);
ins.push(ctx);

48
src/main/java/net/runelite/deob/attributes/code/instructions/IAdd.java
View File

@@ -34,55 +34,7 @@ public class IAdd extends Instruction
ins.pop(two, one);
Encryption encryption = frame.getExecution().getEncryption();
int encKey = 0;
if (encryption != null)
{
if (one.encryption != 0)
{
assert two.encryption == 0;
if (two.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) two.getPushed().getInstruction();
int value = (int) pci.getConstant().getObject();
//if (value != 0 && value != 1)
{
int o = value * one.encryption;
encryption.change(pci, o, false);
}
// field is no longer encrypted
encKey = 1;
}
//else
// encKey = one.encryption;
}
else if (two.encryption != 0)
{
assert one.encryption == 0;
if (one.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) one.getPushed().getInstruction();
int value = (int) pci.getConstant().getObject();
//if (value != 0 && value != 1)
{
int o = value * two.encryption;
encryption.change(pci, o, false);
}
encKey = 1;
}
//encKey = two.encryption;
}
}
StackContext ctx = new StackContext(ins, int.class);
ctx.encryption = encKey;
stack.push(ctx);
ins.push(ctx);

40
src/main/java/net/runelite/deob/attributes/code/instructions/IMul.java
View File

@@ -35,47 +35,7 @@ public class IMul extends Instruction
ins.pop(one, two);
Encryption encryption = frame.getExecution().getEncryption();
int encKey = 0;
if (encryption != null)
{
if (one.encryption != 0)
{
assert two.encryption == 0;
PushConstantInstruction pci = (PushConstantInstruction) two.getPushed().getInstruction();
int other = (int) pci.getConstant().getObject();
// 'one' is encrypted and we want to decrypt it by dividing by one.encryption
if (other != 0)
{
int o = other * DMath.modInverse(one.encryption);
encryption.change(pci, o, false);
}
encKey = 1;
}
else if (two.encryption != 0)
{
assert one.encryption == 0;
PushConstantInstruction pci = (PushConstantInstruction) one.getPushed().getInstruction();
int other = (int) pci.getConstant().getObject();
if (other != 0)
{
int o = other * DMath.modInverse(two.encryption);
encryption.change(pci, o, false);
}
encKey = 1;
}
}
StackContext ctx = new StackContext(ins, int.class);
ctx.encryption = encKey;
stack.push(ctx);
ins.push(ctx);

47
src/main/java/net/runelite/deob/attributes/code/instructions/ISub.java
View File

@@ -28,54 +28,7 @@ public class ISub extends Instruction
ins.pop(two, one);
Encryption encryption = frame.getExecution().getEncryption();
int encKey = 0;
if (encryption != null)
{
if (one.encryption != 0)
{
assert two.encryption == 0;
if (two.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) two.getPushed().getInstruction();
int value = (int) pci.getConstant().getObject();
//if (value != 0 && value != 1)
{
int o = value * one.encryption;
encryption.change(pci, o, false);
}
encKey = 1;
}
// encKey = one.encryption;
}
else if (two.encryption != 0)
{
assert one.encryption == 0;
if (one.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) one.getPushed().getInstruction();
int value = (int) pci.getConstant().getObject();
//if (value != 0 && value != 1)
{
int o = value * two.encryption;
encryption.change(pci, o, false);
}
encKey = 1;
}
//encKey = two.encryption;
}
}
StackContext ctx = new StackContext(ins, int.class);
ctx.encryption = encKey;
stack.push(ctx);
ins.push(ctx);

82
src/main/java/net/runelite/deob/attributes/code/instructions/PutField.java
View File

@@ -52,88 +52,6 @@ public class PutField extends Instruction implements SetFieldInstruction
StackContext object = stack.pop();
ins.pop(value, object);
Encryption encryption = frame.getExecution().getEncryption();
net.runelite.deob.Field myField = getMyField();
if (encryption != null && myField != null)
{
Pair pair = encryption.getField(myField);
//if (pair != null)
// translate(encryption, pair, ins, new HashSet());
// XXX move translate() here
// InstructionContext ctx = value.getPushed();
// if (ctx.getInstruction() instanceof IAdd && pair != null)
// {
// // field += constant * crap;
// // in bytecode is really
// // field = field + constant * crap
//
// List<StackContext> pops = ctx.getPops();
//
// if (pops.get(0).getPushed().getInstruction() instanceof IMul)
// {
// ctx = pops.get(0).getPushed();
// }
// else if (pops.get(1).getPushed().getInstruction() instanceof IMul)
// {
// ctx = pops.get(1).getPushed();
// }
// }
// if (ctx.getInstruction() instanceof PushConstantInstruction && pair != null)
// {
// // field = encryptedvalue
// // decrypt value by * getter
//
// PushConstantInstruction pci = (PushConstantInstruction) ctx.getInstruction();
// int v = (int) pci.getConstant().getObject();
//
// if (v != 0 && v != 1)
// {
// v = v * pair.getter;
//
// encryption.change(pci, v);
// }
// }
// if (ctx.getInstruction() instanceof ISub)
// {
// List<StackContext> stackCtx = ctx.getPops();
//
// StackContext one = stackCtx.get(0), two = stackCtx.get(1);
//
// if (one.getPushed().getInstruction() instanceof IMul)
// {
// ctx = one.getPushed();
// }
// else if (two.getPushed().getInstruction() instanceof IMul)
// {
// ctx = two.getPushed();
// }
// }
// if (ctx.getInstruction() instanceof IMul && pair != null)
// {
// List<StackContext> stackCtx = ctx.getPops();
//
// StackContext one = stackCtx.get(0), two = stackCtx.get(1);
//
// StackContext magicStack = PutStatic.findMagic(one, two);
//
// if (magicStack != null)
// {
// PushConstantInstruction pci = (PushConstantInstruction) magicStack.getPushed().getInstruction();
// int v = (int) pci.getConstant().getObject();
//
// // field is encrypted with pair
// // divide value by setter
//
// if (v != 0 && v != 1)
// {
// v = v * pair.getter;
//
// encryption.change(pci, v);
// }
// }
// }
}
frame.addInstructionContext(ins);
}

203
src/main/java/net/runelite/deob/attributes/code/instructions/PutStatic.java
View File

@@ -16,12 +16,6 @@ import net.runelite.deob.pool.NameAndType;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Set;
import net.runelite.deob.attributes.code.instruction.types.DupInstruction;
import net.runelite.deob.attributes.code.instruction.types.PushConstantInstruction;
import net.runelite.deob.deobfuscators.arithmetic.DMath;
import net.runelite.deob.deobfuscators.arithmetic.Encryption;
import net.runelite.deob.deobfuscators.arithmetic.Pair;
public class PutStatic extends Instruction implements SetFieldInstruction
{
@@ -46,122 +40,6 @@ public class PutStatic extends Instruction implements SetFieldInstruction
out.writeShort(this.getPool().make(field));
}
protected static StackContext findMagic(StackContext one, StackContext two)
{
if (one.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) one.getPushed().getInstruction();
int value1 = (int) pci.getConstant().getObject();
if (DMath.isBig(value1))
{
return one;
}
}
if (two.getPushed().getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) two.getPushed().getInstruction();
int value2 = (int) pci.getConstant().getObject();
if (DMath.isBig(value2))
{
return two;
}
}
return null;
}
public static boolean translate(Encryption encryption, Pair pair, InstructionContext ctx, Set<Instruction> visited)
{
if (visited.contains(ctx.getInstruction()))
return true;
visited.add(ctx.getInstruction());
if (ctx.getInstruction() instanceof PushConstantInstruction)
{
PushConstantInstruction pci = (PushConstantInstruction) ctx.getInstruction();
if (pci.getConstant().getObject() instanceof Integer)
{
int value = (int) pci.getConstant().getObject();
if (encryption.hasChange(pci))
return true;
if (value != 0)
{
value = value * pair.getter;
encryption.change(pci, value, true);
}
return true;
}
}
boolean ok = ctx.getInstruction() instanceof IAdd ||
ctx.getInstruction() instanceof ISub ||
ctx.getInstruction() instanceof IMul ||
ctx.getInstruction() instanceof SetFieldInstruction ||
ctx.getInstruction() instanceof DupInstruction;
if (!ok)
return false;
boolean multipleBranches = ctx.getInstruction() instanceof IAdd ||
ctx.getInstruction() instanceof ISub;
boolean retVal = false;
encryption.begin();
for (StackContext sctx : ctx.getPops())
{
InstructionContext i = sctx.getPushed();
if (translate(encryption, pair, i, visited))
{
retVal = true;
if (!multipleBranches) // only need to translate the one branch, which we have, return.
break;
}
else
{
if (multipleBranches)
{
// we can't translate both branches so rollback
encryption.rollback();
retVal = false;
break;
}
// else this is okay, we can try another
}
}
encryption.end();
// for (StackContext sctx : ctx.getPushes())
// {
// InstructionContext i = sctx.getPopped();
//
// if (i != null)
// {
// boolean b = translate(encryption, pair, i, visited); // XXX?
// //System.out.println("up translate res " + b);
// }
// else
// assert false;
// // this hasn't been popped yet, so it hasn't been executed yet,
// // so mark it as encrypted so that when it is executed, we will decrypt it
// //sctx.encryption = pair.getter;
// }
return retVal;
}
@Override
public void execute(Frame frame)
{
@@ -171,87 +49,6 @@ public class PutStatic extends Instruction implements SetFieldInstruction
StackContext object = stack.pop();
ins.pop(object);
Encryption encryption = frame.getExecution().getEncryption();
net.runelite.deob.Field myField = getMyField();
if (encryption != null && myField != null)
{
Pair pair = encryption.getField(myField);
//if (pair != null)
// translate(encryption, pair, ins, new HashSet());
// InstructionContext ctx = object.getPushed();
// if (ctx.getInstruction() instanceof IAdd && pair != null)
// {
// // field += constant * crap;
// // in bytecode is really
// // field = field + constant * crap
//
// List<StackContext> pops = ctx.getPops();
//
// if (pops.get(0).getPushed().getInstruction() instanceof IMul)
// {
// ctx = pops.get(0).getPushed();
// }
// else if (pops.get(1).getPushed().getInstruction() instanceof IMul)
// {
// ctx = pops.get(1).getPushed();
// }
// }
// if (ctx.getInstruction() instanceof PushConstantInstruction && pair != null)
// {
// // field = encryptedvalue
// // decrypt value by * getter
//
// PushConstantInstruction pci = (PushConstantInstruction) ctx.getInstruction();
// int value = (int) pci.getConstant().getObject();
//
// if (value != 0 && value != 1)
// {
// value = value * pair.getter;
//
// encryption.change(pci, value);
// }
// }
// if (ctx.getInstruction() instanceof ISub)
// {
// List<StackContext> stackCtx = ctx.getPops();
//
// StackContext one = stackCtx.get(0), two = stackCtx.get(1);
//
// if (one.getPushed().getInstruction() instanceof IMul)
// {
// ctx = one.getPushed();
// }
// else if (two.getPushed().getInstruction() instanceof IMul)
// {
// ctx = two.getPushed();
// }
// }
// if (ctx.getInstruction() instanceof IMul && pair != null)
// {
// List<StackContext> stackCtx = ctx.getPops();
//
// StackContext one = stackCtx.get(0), two = stackCtx.get(1);
//
// StackContext magicStack = findMagic(one, two);
//
// if (magicStack != null)
// {
// PushConstantInstruction pci = (PushConstantInstruction) magicStack.getPushed().getInstruction();
// int value = (int) pci.getConstant().getObject();
//
// // field is encrypted with pair
// // divide value by setter
//
// if (value != 0 && value != 1)
// {
// value = value * pair.getter;
//
// encryption.change(pci, value);
// }
// }
// }
}
frame.addInstructionContext(ins);
}

70
src/main/java/net/runelite/deob/deobfuscators/arithmetic/Encryption.java
View File

@@ -1,25 +1,12 @@
package net.runelite.deob.deobfuscators.arithmetic;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.Stack;
import net.runelite.deob.Field;
import net.runelite.deob.attributes.code.Instruction;
import net.runelite.deob.attributes.code.instruction.types.PushConstantInstruction;
public class Encryption
{
private static class PendingStack
{
private Set<PushConstantInstruction> pending = new HashSet<>();
}
private Map<Field, Pair> fields = new HashMap<>();
private Map<PushConstantInstruction, Integer> changes = new HashMap<>();
private Stack<PendingStack> stack = new Stack<>();
private final Map<Field, Pair> fields = new HashMap<>();
public void addPair(Pair pair)
{
@@ -30,59 +17,4 @@ public class Encryption
{
return fields.get(field);
}
public boolean hasChange(PushConstantInstruction pci)
{
return changes.containsKey(pci);
}
public void change(PushConstantInstruction pci, int value, boolean mul)
{
//Integer i = changes.get(pci);
assert !changes.containsKey(pci) || changes.get(pci) == value;
// if (i == null)
// changes.put(pci, value);
// else if (mul)
// changes.put(pci, value * i);
// else
changes.put(pci, value);
// assert i == value;
if (stack.isEmpty())
return;
PendingStack ps = stack.peek();
ps.pending.add(pci);
}
public void doChange()
{
for (Entry<PushConstantInstruction, Integer> e : changes.entrySet())
{
PushConstantInstruction pci = e.getKey();
int value = e.getValue();
Instruction oldi = (Instruction) pci;
Instruction newi = pci.setConstant(new net.runelite.deob.pool.Integer(value));
if (oldi != newi)
oldi.getInstructions().replace(oldi, newi);
}
}
public void begin()
{
stack.push(new PendingStack());
}
public void end()
{
stack.pop();
}
public void rollback()
{
PendingStack ps = stack.peek();
for (PushConstantInstruction pci : ps.pending)
changes.remove(pci);
}
}

61
src/main/java/net/runelite/deob/deobfuscators/arithmetic/ModArith.java
View File

@@ -21,7 +21,6 @@ import net.runelite.deob.attributes.code.instruction.types.PushConstantInstructi
import net.runelite.deob.attributes.code.instruction.types.SetFieldInstruction;
import net.runelite.deob.attributes.code.instructions.IMul;
import net.runelite.deob.attributes.code.instructions.LDC_W;
import net.runelite.deob.attributes.code.instructions.PutStatic;
import net.runelite.deob.execution.Execution;
import net.runelite.deob.execution.Frame;
import net.runelite.deob.execution.InstructionContext;
@@ -29,10 +28,6 @@ import net.runelite.deob.execution.StackContext;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.map.MultiValueMap;
/*
store an encryption context on stack context that shows the value the ctx is encrypted with
*/
public class ModArith implements Deobfuscator
{
private ClassGroup group;
@@ -321,22 +316,22 @@ public class ModArith implements Deobfuscator
}
System.out.println("Finished arith deob on " + total + " fields in " + passes + " passes");
}
private void translateSetFields(Execution e)
{
//Set<Instruction> visited = new HashSet<>();
for (Frame f : e.processedFrames)
for (InstructionContext ins : f.getInstructions())
if (ins.getInstruction() instanceof SetFieldInstruction)
{
SetFieldInstruction sfi = (SetFieldInstruction) ins.getInstruction();
Pair pair = e.getEncryption().getField(sfi.getMyField());
if (pair != null)
PutStatic.translate(e.getEncryption(), pair, ins, new HashSet());
//
}
}
// private void translateSetFields(Execution e)
// {
// //Set<Instruction> visited = new HashSet<>();
// for (Frame f : e.processedFrames)
// for (InstructionContext ins : f.getInstructions())
// if (ins.getInstruction() instanceof SetFieldInstruction)
// {
// SetFieldInstruction sfi = (SetFieldInstruction) ins.getInstruction();
// Pair pair = e.getEncryption().getField(sfi.getMyField());
//
// if (pair != null)
// PutStatic.translate(e.getEncryption(), pair, ins, new HashSet());
// //
// }
// }
private void insertGetterSetterMuls(Encryption encr)
{
@@ -410,6 +405,12 @@ public class ModArith implements Deobfuscator
findUses();
reduce();
// Encryption encr = new Encryption();
// for (Pair pair : pairs)
// encr.addPair(pair);
//
// insertGetterSetterMuls(encr);
int i = 0;
for (Pair pair : pairs)
{
@@ -429,26 +430,6 @@ public class ModArith implements Deobfuscator
encr.addPair(pair);
insertGetterSetterMuls(encr);
//
// execution = new Execution(group);
// execution.populateInitialMethods();
// execution.setEncryption(encr);
// execution.run();
//
// encr.doChange();
//
// insertSetterMuls(encr);
// execution = new Execution(group);
// execution.populateInitialMethods();
// execution.run();
//
// encr = new Encryption();
// encr.addPair(pair);
// execution.setEncryption(encr);
// translateSetFields(execution);
//
// encr.doChange();
System.out.println("Changed " + ++i);
//assert !deobfuscatedFields.contains(field);

53
src/main/java/net/runelite/deob/deobfuscators/arithmetic/MultiplicationDeobfuscator.java
View File

@@ -1,10 +1,8 @@
package net.runelite.deob.deobfuscators.arithmetic;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import net.runelite.deob.ClassGroup;
import net.runelite.deob.Deobfuscator;
@@ -22,7 +20,6 @@ import net.runelite.deob.attributes.code.instructions.SiPush;
import net.runelite.deob.execution.Execution;
import net.runelite.deob.execution.Frame;
import net.runelite.deob.execution.InstructionContext;
import net.runelite.deob.execution.Stack;
import net.runelite.deob.execution.StackContext;
public class MultiplicationDeobfuscator implements Deobfuscator
@@ -392,56 +389,6 @@ public class MultiplicationDeobfuscator implements Deobfuscator
done.add(instruction);
count += expression.simplify(1);
if (MultiplicationExpression.replace)
{
assert false;
MultiplicationExpression.replace = false;
return count;
}
//break;
// List<InstructionContext> ins = getConstants(ictx);
//
// if (ins.size() == 1)
// continue;
//
// for (InstructionContext i : ins)
// {
// if (done.contains(i.getInstruction()))
// {
// continue outer;
// }
// }
//
// // there can only be one path to here, or else combinging would change code logic
// if (!isOnlyPath(e, frame, ictx))
// continue;
//
// int result = 1;
//
// // calculate result
// for (InstructionContext i : ins)
// {
// PushConstantInstruction pci = (PushConstantInstruction) i.getInstruction();
// int value = (int) pci.getConstant().getObject();
//
// result *= value;
// }
//
// // set result on ins
// for (InstructionContext i : ins)
// {
// PushConstantInstruction pci = (PushConstantInstruction) i.getInstruction();
// Instruction newIns = pci.setConstant(new net.runelite.deob.pool.Integer(result));
// ++count;
// if (newIns != pci)
// {
// instructions.replace((Instruction) pci, newIns);
// }
// result = 1; // rest of the results go to 1
// }
//
// for (InstructionContext i : ins)
// done.add(i.getInstruction());
}
return count;

11
src/main/java/net/runelite/deob/deobfuscators/arithmetic/MultiplicationExpression.java
View File

@@ -12,7 +12,6 @@ public class MultiplicationExpression
dupedInstructions = new ArrayList<>();
List<MultiplicationExpression> subexpressions = new ArrayList<>(); // for distributing, each subexpr is * by this
InstructionContext dupmagic; // inverse of what is distributed to subexpressions gets set here
static boolean replace;
int simplify(int start)
{
@@ -54,11 +53,6 @@ public class MultiplicationExpression
{
for (MultiplicationExpression me : subexpressions)
{
// if (me.instructions.isEmpty() && this.dupmagic != null)
// {
// assert me.dupmagic == null;
// me.dupmagic = this.dupmagic;
// }
count += me.simplify(result);
}
@@ -82,11 +76,6 @@ public class MultiplicationExpression
Instruction newIns = pci.setConstant(new net.runelite.deob.pool.Integer(result));
++count;
assert newIns == pci;
// if (newIns != pci)
// {
// newIns.getInstructions().replace((Instruction) pci, newIns);
// replace = true;
// }
result = 1; // rest of the results go to 1
}

1
src/main/java/net/runelite/deob/execution/InstructionContext.java
View File

@@ -16,7 +16,6 @@ public class InstructionContext
private List<StackContext> pushes = new ArrayList<>(); // stack contexts pushed by instruction execution
private List<VariableContext> reads = new ArrayList<>(); // lvt reads
private List<Method> invokes = new ArrayList<>(); // invokes
public long frameNum;
public InstructionContext(Instruction i, Frame f)
{

1
src/main/java/net/runelite/deob/execution/StackContext.java
View File

@@ -9,7 +9,6 @@ public class StackContext
public List<InstructionContext> poppeds = new ArrayList<>(); // instructions which popped this
public Type type; // type of this
public boolean removed;
public int encryption; // if this value is encrypted, this is the key to get the real value
public StackContext(InstructionContext pushed, Type type)
{