LegacyConsole/jpexs-decompiler
3
0
Fork 0
mirror of https://git.huckle.dev/Huckles-Minecraft-Archive/jpexs-decompiler.git synced 2026-06-05 18:34:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Old (but still mode = 1, so not the oldest) AS2 deobfuscation methods removed

Browse Source
This commit is contained in:
honfika@gmail.com
2015-10-30 23:10:39 +01:00
parent bfc38fc160
commit 3290e3d05d
3 changed files with 0 additions and 1632 deletions
Download Patch File Download Diff File Expand all files Collapse all files

519
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/deobfuscation/ActionDeobfuscatorOld.java
View File

@@ -1,519 +0,0 @@
/*
* Copyright (C) 2010-2015 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.action.deobfuscation;
import com.jpexs.decompiler.flash.SWF;
import com.jpexs.decompiler.flash.SWFInputStream;
import com.jpexs.decompiler.flash.abc.ABC;
import com.jpexs.decompiler.flash.abc.types.MethodBody;
import com.jpexs.decompiler.flash.action.Action;
import com.jpexs.decompiler.flash.action.ActionList;
import com.jpexs.decompiler.flash.action.ActionListReader;
import com.jpexs.decompiler.flash.action.ActionLocalData;
import com.jpexs.decompiler.flash.action.model.DirectValueActionItem;
import com.jpexs.decompiler.flash.action.model.ReturnActionItem;
import com.jpexs.decompiler.flash.action.special.ActionEnd;
import com.jpexs.decompiler.flash.action.swf4.ActionAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionAnd;
import com.jpexs.decompiler.flash.action.swf4.ActionAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionCharToAscii;
import com.jpexs.decompiler.flash.action.swf4.ActionDivide;
import com.jpexs.decompiler.flash.action.swf4.ActionEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionGetVariable;
import com.jpexs.decompiler.flash.action.swf4.ActionIf;
import com.jpexs.decompiler.flash.action.swf4.ActionJump;
import com.jpexs.decompiler.flash.action.swf4.ActionLess;
import com.jpexs.decompiler.flash.action.swf4.ActionMBAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionMBStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionMultiply;
import com.jpexs.decompiler.flash.action.swf4.ActionNot;
import com.jpexs.decompiler.flash.action.swf4.ActionOr;
import com.jpexs.decompiler.flash.action.swf4.ActionPush;
import com.jpexs.decompiler.flash.action.swf4.ActionSetVariable;
import com.jpexs.decompiler.flash.action.swf4.ActionStringAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionStringEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLess;
import com.jpexs.decompiler.flash.action.swf4.ActionSubtract;
import com.jpexs.decompiler.flash.action.swf4.ActionToInteger;
import com.jpexs.decompiler.flash.action.swf4.ConstantIndex;
import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionAdd2;
import com.jpexs.decompiler.flash.action.swf5.ActionBitAnd;
import com.jpexs.decompiler.flash.action.swf5.ActionBitLShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitOr;
import com.jpexs.decompiler.flash.action.swf5.ActionBitRShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitURShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitXor;
import com.jpexs.decompiler.flash.action.swf5.ActionCallFunction;
import com.jpexs.decompiler.flash.action.swf5.ActionConstantPool;
import com.jpexs.decompiler.flash.action.swf5.ActionDecrement;
import com.jpexs.decompiler.flash.action.swf5.ActionDefineFunction;
import com.jpexs.decompiler.flash.action.swf5.ActionDefineLocal;
import com.jpexs.decompiler.flash.action.swf5.ActionEquals2;
import com.jpexs.decompiler.flash.action.swf5.ActionIncrement;
import com.jpexs.decompiler.flash.action.swf5.ActionLess2;
import com.jpexs.decompiler.flash.action.swf5.ActionModulo;
import com.jpexs.decompiler.flash.action.swf5.ActionPushDuplicate;
import com.jpexs.decompiler.flash.action.swf5.ActionReturn;
import com.jpexs.decompiler.flash.action.swf5.ActionToNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionToString;
import com.jpexs.decompiler.flash.action.swf5.ActionTypeOf;
import com.jpexs.decompiler.flash.action.swf6.ActionGreater;
import com.jpexs.decompiler.flash.action.swf6.ActionStringGreater;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.graph.Graph;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.TranslateException;
import com.jpexs.decompiler.graph.TranslateStack;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author JPEXS
*/
public class ActionDeobfuscatorOld extends ActionDeobfuscatorSimpleOld {
private final int executionLimit = 30000;
@Override
public void actionListParsed(ActionList actions, SWF swf) throws InterruptedException {
Map<String, Object> fakeFunctions = getFakeFunctionResults(actions);
removeUnreachableActions(actions);
removeObfuscationIfs(actions, fakeFunctions);
removeUnreachableActions(actions);
removeZeroJumps(actions);
ActionListReader.fixConstantPools(null, actions);
//rereadActionList(actions, swf); // this call will fix the contant pool assigments
}
private boolean rereadActionList(ActionList actions, SWF swf) throws InterruptedException {
byte[] actionBytes = Action.actionsToBytes(actions, true, SWF.DEFAULT_VERSION);
try {
SWFInputStream rri = new SWFInputStream(swf, actionBytes);
ActionList newActions = ActionListReader.readActionList(new ArrayList<>(), rri, SWF.DEFAULT_VERSION, 0, actionBytes.length, "", -1);
actions.setActions(newActions);
} catch (IOException ex) {
Logger.getLogger(ActionDeobfuscatorOld.class.getName()).log(Level.SEVERE, null, ex);
}
return true;
}
private boolean removeObfuscationIfs(ActionList actions, Map<String, Object> fakeFunctions) throws InterruptedException {
if (actions.size() == 0) {
return false;
}
ActionConstantPool cPool = getConstantPool(actions);
for (int i = 0; i < actions.size(); i++) {
int idx = actions.size() - 1;
int containerIndex = actions.getContainerEndIndex(i);
if (containerIndex != -1) {
idx = Math.min(idx, containerIndex - 1);
}
ExecutionResult result = new ExecutionResult();
// allow uninitialized variables only when the code is execuded from the first line
executeActions(actions, i, idx, cPool, result, fakeFunctions, i == 0);
if (result.idx != -1 && result.resultValue == null) {
int newIstructionCount = 1; // jump
if (result.constantPool != null) {
newIstructionCount++;
}
newIstructionCount += result.stack.size();
newIstructionCount += 3 * result.variables.size(); /* 2x Push + Set or Define */
boolean allValueValid = true;
for (Object value : result.variables.values()) {
if (!ActionPush.isValidValue(value)) {
allValueValid = false;
break;
}
}
List<Action> unreachable = actions.getUnreachableActions(i, result.idx);
int unreachableCount = getActionCount(unreachable);
if (allValueValid && newIstructionCount + 2 < unreachableCount) {
Action target = actions.get(result.idx);
Action prevAction = actions.get(i);
if (result.constantPool != null) {
ActionConstantPool constantPool2 = new ActionConstantPool(new ArrayList<>(result.constantPool.constantPool));
actions.addAction(i++, constantPool2);
prevAction = constantPool2;
}
for (String variableName : result.variables.keySet()) {
Object value = result.variables.get(variableName);
ActionPush push = new ActionPush(variableName);
push.values.add(value);
push.setAddress(prevAction.getAddress());
actions.addAction(i++, push);
prevAction = push;
if (result.defines.contains(variableName)) {
ActionDefineLocal defineLocal = new ActionDefineLocal();
defineLocal.setAddress(prevAction.getAddress());
actions.addAction(i++, defineLocal);
prevAction = defineLocal;
} else {
ActionSetVariable setVariable = new ActionSetVariable();
setVariable.setAddress(prevAction.getAddress());
actions.addAction(i++, setVariable);
prevAction = setVariable;
}
}
if (!result.stack.isEmpty()) {
ActionPush push = new ActionPush(0);
push.values.clear();
for (GraphTargetItem graphTargetItem : result.stack) {
push.values.add(graphTargetItem.getResult());
}
push.setAddress(prevAction.getAddress());
actions.addAction(i++, push);
prevAction = push;
}
ActionJump jump = new ActionJump(0);
jump.setAddress(prevAction.getAddress());
jump.setJumpOffset((int) (target.getAddress() - jump.getAddress() - jump.getTotalActionLength()));
actions.addAction(i++, jump);
return true;
}
}
}
return false;
}
private ActionConstantPool getConstantPool(ActionList actions) {
ActionConstantPool cPool = null;
for (Action action : actions) {
if (action instanceof ActionConstantPool) {
if (cPool != null) {
// there are multiple constant pools
return null;
}
cPool = (ActionConstantPool) action;
}
}
return cPool;
}
private void executeActions(ActionList actions, int idx, int endIdx, ActionConstantPool constantPool, ExecutionResult result, Map<String, Object> fakeFunctions, boolean allowGetUninitializedVariables) throws InterruptedException {
List<GraphTargetItem> output = new ArrayList<>();
ActionLocalData localData = new ActionLocalData();
FixItemCounterTranslateStack stack = new FixItemCounterTranslateStack("");
int instructionsProcessed = 0;
ActionConstantPool lastConstantPool = null;
while (true) {
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
if (idx > endIdx) {
break;
}
Action action = actions.get(idx);
instructionsProcessed++;
if (instructionsProcessed > executionLimit) {
break;
}
/*System.out.print(action.getASMSource(actions, new ArrayList<Long>(), ScriptExportMode.PCODE));
for (int j = 0; j < stack.size(); j++) {
System.out.print(" '" + stack.get(j).getResult() + "'");
}
System.out.println();*/
if (action instanceof ActionConstantPool) {
lastConstantPool = (ActionConstantPool) action;
}
if (action instanceof ActionDefineLocal) {
if (stack.size() < 2) {
return;
}
String variableName = stack.peek(2).getResult().toString();
result.defines.add(variableName);
}
if (action instanceof ActionGetVariable) {
if (stack.isEmpty()) {
return;
}
GraphTargetItem variableNameObj = stack.peek();
if (!(variableNameObj instanceof DirectValueActionItem)) {
// avoid dynamic variable names, for example: eval("item" add i);
break;
}
String variableName = variableNameObj.getResult().toString();
if (!localData.variables.containsKey(variableName)
&& (!allowGetUninitializedVariables || !isFakeName(variableName))) {
break;
}
}
if (action instanceof ActionSetVariable) {
if (stack.size() < 2) {
return;
}
if (!(stack.peek(2) instanceof DirectValueActionItem)) {
// avoid dynamic variable names, for example: set("item" add i, 1);
break;
}
}
if (action instanceof ActionCallFunction) {
if (stack.size() < 2) {
return;
}
String functionName = stack.pop().getResult().toString();
long numArgs = EcmaScript.toUint32(stack.pop().getResult());
if (numArgs == 0) {
if (fakeFunctions != null && fakeFunctions.containsKey(functionName)) {
stack.push(new DirectValueActionItem(fakeFunctions.get(functionName)));
} else {
break;
}
} else {
break;
}
} else {
// do not throw EmptyStackException, much faster
int requiredStackSize = action.getStackPopCount(localData, stack);
if (stack.size() < requiredStackSize) {
return;
}
action.translate(localData, stack, output, Graph.SOP_USE_STATIC, "");
}
if (!(action instanceof ActionPush
|| action instanceof ActionPushDuplicate
|| action instanceof ActionAsciiToChar
|| action instanceof ActionCharToAscii
|| action instanceof ActionDecrement
|| action instanceof ActionIncrement
|| action instanceof ActionNot
|| action instanceof ActionToInteger
|| action instanceof ActionToNumber
|| action instanceof ActionToString
|| action instanceof ActionTypeOf
|| action instanceof ActionStringLength
|| action instanceof ActionMBAsciiToChar
|| action instanceof ActionMBStringLength
|| action instanceof ActionAnd
|| action instanceof ActionAdd
|| action instanceof ActionAdd2
|| action instanceof ActionBitAnd
|| action instanceof ActionBitLShift
|| action instanceof ActionBitOr
|| action instanceof ActionBitRShift
|| action instanceof ActionBitURShift
|| action instanceof ActionBitXor
|| action instanceof ActionDivide
|| action instanceof ActionEquals
|| action instanceof ActionEquals2
|| action instanceof ActionGreater
|| action instanceof ActionLess
|| action instanceof ActionLess2
|| action instanceof ActionModulo
|| action instanceof ActionMultiply
|| action instanceof ActionOr
|| action instanceof ActionStringAdd
|| action instanceof ActionStringEquals
|| action instanceof ActionStringGreater
|| action instanceof ActionStringLess
|| action instanceof ActionSubtract
|| action instanceof ActionDefineLocal
|| action instanceof ActionJump
|| action instanceof ActionGetVariable
|| action instanceof ActionSetVariable
|| action instanceof ActionIf
|| action instanceof ActionConstantPool
|| action instanceof ActionCallFunction
|| action instanceof ActionReturn
|| action instanceof ActionEnd)) {
break;
}
if (action instanceof ActionPush) {
ActionPush push = (ActionPush) action;
boolean ok = true;
for (Object value : push.values) {
if ((constantPool == null && value instanceof ConstantIndex) || value instanceof RegisterNumber) {
ok = false;
break;
}
}
if (!ok) {
break;
}
}
/*for (String variable : localData.variables.keySet()) {
System.out.println(Helper.byteArrToString(variable.getBytes()));
}*/
idx++;
if (action instanceof ActionJump) {
ActionJump jump = (ActionJump) action;
long address = jump.getTargetAddress();
idx = actions.getIndexByAddress(address);
if (idx == -1) {
throw new TranslateException("Jump target not found: " + address);
}
}
if (action instanceof ActionIf) {
ActionIf aif = (ActionIf) action;
if (stack.isEmpty()) {
return;
}
if (EcmaScript.toBoolean(stack.pop().getResult())) {
long address = aif.getTargetAddress();
idx = actions.getIndexByAddress(address);
if (idx == -1) {
throw new TranslateException("If target not found: " + address);
}
}
}
if (action instanceof ActionDefineFunction) {
List<Action> lastActions = actions.getContainerLastActions(action);
int lastActionIdx = actions.getIndexByAction(lastActions.get(0));
idx = lastActionIdx != -1 ? lastActionIdx + 1 : -1;
}
if (/*localData.variables.size() == 1 && */(stack.allItemsFixed() || action instanceof ActionEnd) && !(action instanceof ActionPush)) {
result.idx = idx == actions.size() ? idx - 1 : idx;
result.instructionsProcessed = instructionsProcessed;
result.constantPool = lastConstantPool;
result.variables.clear();
for (String variableName : localData.variables.keySet()) {
Object value = localData.variables.get(variableName).getResult();
result.variables.put(variableName, value);
}
result.stack.clear();
result.stack.addAll(stack);
}
if (action instanceof ActionReturn) {
if (output.size() > 0) {
ReturnActionItem ret = (ReturnActionItem) output.get(output.size() - 1);
result.resultValue = ret.value.getResult();
}
break;
}
}
}
private Map<String, Object> getFakeFunctionResults(ActionList actions) throws InterruptedException {
/*
DefineFunction "fakeName" 0 {
Push 1777
Return
}
*/
Map<String, Object> results = new HashMap<>();
for (int i = 0; i < actions.size(); i++) {
Action action = actions.get(i);
if (action instanceof ActionDefineFunction) {
ActionDefineFunction def = (ActionDefineFunction) action;
if (def.paramNames.isEmpty()) {
// remove funcion only when the function name contains only non printable characters
if (!isFakeName(def.functionName)) {
continue;
}
ExecutionResult result = new ExecutionResult();
List<Action> lastActions = actions.getContainerLastActions(action);
int lastActionIdx = actions.getIndexByAction(lastActions.get(0));
executeActions(actions, i + 1, lastActionIdx, null, result, null, false);
if (result.resultValue != null) {
results.put(def.functionName, result.resultValue);
for (int j = i; j <= lastActionIdx; j++) {
actions.removeAction(i);
}
}
}
}
}
return results;
}
@Override
public byte[] proxyFileCatched(byte[] data) {
return null;
}
@Override
public void swfParsed(SWF swf) {
}
@Override
public void abcParsed(ABC abc, SWF swf) {
}
@Override
public void methodBodyParsed(MethodBody body, SWF swf) {
}
class ExecutionResult {
public int idx = -1;
public int instructionsProcessed = -1;
public ActionConstantPool constantPool;
public Map<String, Object> variables = new HashMap<>();
public Set<String> defines = new HashSet<>();
public TranslateStack stack = new TranslateStack("?");
public Object resultValue;
}
}

676
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/deobfuscation/ActionDeobfuscatorSimpleFastOld.java
View File

@@ -1,676 +0,0 @@
/*
* Copyright (C) 2010-2015 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.action.deobfuscation;
import com.jpexs.decompiler.flash.SWF;
import com.jpexs.decompiler.flash.abc.ABC;
import com.jpexs.decompiler.flash.abc.types.MethodBody;
import com.jpexs.decompiler.flash.abc.types.traits.Trait;
import com.jpexs.decompiler.flash.action.Action;
import com.jpexs.decompiler.flash.action.ActionList;
import com.jpexs.decompiler.flash.action.ActionListReader;
import com.jpexs.decompiler.flash.action.ActionLocalData;
import com.jpexs.decompiler.flash.action.fastactionlist.ActionItem;
import com.jpexs.decompiler.flash.action.fastactionlist.FastActionList;
import com.jpexs.decompiler.flash.action.fastactionlist.FastActionListIterator;
import com.jpexs.decompiler.flash.action.model.DirectValueActionItem;
import com.jpexs.decompiler.flash.action.model.ReturnActionItem;
import com.jpexs.decompiler.flash.action.special.ActionEnd;
import com.jpexs.decompiler.flash.action.swf4.ActionAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionAnd;
import com.jpexs.decompiler.flash.action.swf4.ActionAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionCharToAscii;
import com.jpexs.decompiler.flash.action.swf4.ActionDivide;
import com.jpexs.decompiler.flash.action.swf4.ActionEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionGetTime;
import com.jpexs.decompiler.flash.action.swf4.ActionGetVariable;
import com.jpexs.decompiler.flash.action.swf4.ActionIf;
import com.jpexs.decompiler.flash.action.swf4.ActionJump;
import com.jpexs.decompiler.flash.action.swf4.ActionLess;
import com.jpexs.decompiler.flash.action.swf4.ActionMBAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionMBStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionMultiply;
import com.jpexs.decompiler.flash.action.swf4.ActionNot;
import com.jpexs.decompiler.flash.action.swf4.ActionOr;
import com.jpexs.decompiler.flash.action.swf4.ActionPush;
import com.jpexs.decompiler.flash.action.swf4.ActionSetVariable;
import com.jpexs.decompiler.flash.action.swf4.ActionStringAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionStringEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLess;
import com.jpexs.decompiler.flash.action.swf4.ActionSubtract;
import com.jpexs.decompiler.flash.action.swf4.ActionToInteger;
import com.jpexs.decompiler.flash.action.swf4.ConstantIndex;
import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionAdd2;
import com.jpexs.decompiler.flash.action.swf5.ActionBitAnd;
import com.jpexs.decompiler.flash.action.swf5.ActionBitLShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitOr;
import com.jpexs.decompiler.flash.action.swf5.ActionBitRShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitURShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitXor;
import com.jpexs.decompiler.flash.action.swf5.ActionCallFunction;
import com.jpexs.decompiler.flash.action.swf5.ActionConstantPool;
import com.jpexs.decompiler.flash.action.swf5.ActionDecrement;
import com.jpexs.decompiler.flash.action.swf5.ActionDefineFunction;
import com.jpexs.decompiler.flash.action.swf5.ActionDefineLocal;
import com.jpexs.decompiler.flash.action.swf5.ActionEquals2;
import com.jpexs.decompiler.flash.action.swf5.ActionIncrement;
import com.jpexs.decompiler.flash.action.swf5.ActionLess2;
import com.jpexs.decompiler.flash.action.swf5.ActionModulo;
import com.jpexs.decompiler.flash.action.swf5.ActionPushDuplicate;
import com.jpexs.decompiler.flash.action.swf5.ActionReturn;
import com.jpexs.decompiler.flash.action.swf5.ActionToNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionToString;
import com.jpexs.decompiler.flash.action.swf5.ActionTypeOf;
import com.jpexs.decompiler.flash.action.swf6.ActionGreater;
import com.jpexs.decompiler.flash.action.swf6.ActionStringGreater;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.flash.helpers.SWFDecompilerListener;
import com.jpexs.decompiler.graph.Graph;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.TranslateStack;
import com.jpexs.decompiler.graph.model.FalseItem;
import com.jpexs.decompiler.graph.model.PushItem;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
*
* @author JPEXS
*/
public class ActionDeobfuscatorSimpleFastOld implements SWFDecompilerListener {
private final int executionLimit = 30000;
@Override
public void actionListParsed(ActionList actions, SWF swf) throws InterruptedException {
FastActionList fastActions = new FastActionList(actions);
fastActions.expandPushes();
Map<String, Object> fakeFunctions = getFakeFunctionResults(fastActions);
boolean changed = true;
boolean useVariables = false;
while (changed) {
changed = removeGetTimes(fastActions);
changed |= removeObfuscationIfs(fastActions, fakeFunctions, useVariables);
changed |= removeObfuscatedUnusedVariables(fastActions);
actions.setActions(fastActions.toActionList());
changed |= ActionListReader.fixConstantPools(null, actions);
if (!changed && !useVariables) {
useVariables = true;
changed = true;
}
}
}
private boolean removeGetTimes(FastActionList actions) {
if (actions.isEmpty()) {
return false;
}
boolean ret = false;
boolean changed = true;
int getTimeCount = 1;
while (changed && getTimeCount > 0) {
changed = false;
actions.removeUnreachableActions();
actions.removeZeroJumps();
getTimeCount = 0;
// GetTime, If => Jump, assume GetTime > 0
FastActionListIterator iterator = actions.iterator();
while (iterator.hasNext()) {
Action a = iterator.next().action;
ActionItem a2Item = iterator.peek(0);
Action a2 = a2Item.action;
boolean isGetTime = a instanceof ActionGetTime;
if (isGetTime) {
getTimeCount++;
}
if (isGetTime && a2 instanceof ActionIf) {
ActionJump jump = new ActionJump(0);
ActionItem jumpItem = new ActionItem(jump);
jumpItem.setJumpTarget(a2Item.getJumpTarget());
iterator.remove(); // GetTime
iterator.next();
iterator.remove(); // If
iterator.add(jumpItem); // replace If with Jump
changed = true;
ret = true;
getTimeCount--;
}
}
if (!changed && getTimeCount > 0) {
// GetTime, Increment If => Jump
iterator = actions.iterator();
while (iterator.hasNext()) {
Action a = iterator.next().action;
Action a1 = iterator.peek(0).action;
ActionItem a2Item = iterator.peek(1);
Action a2 = a2Item.action;
if (a instanceof ActionGetTime && a1 instanceof ActionIncrement && a2 instanceof ActionIf) {
ActionJump jump = new ActionJump(0);
ActionItem jumpItem = new ActionItem(jump);
jumpItem.setJumpTarget(a2Item.getJumpTarget());
iterator.remove(); // GetTime
iterator.next();
iterator.remove(); // Increment
iterator.next();
iterator.remove(); // If
iterator.add(jumpItem); // replace If with Jump
changed = true;
ret = true;
}
}
}
}
return ret;
}
private boolean removeObfuscationIfs(FastActionList actions, Map<String, Object> fakeFunctions, boolean useVariables) throws InterruptedException {
if (actions.isEmpty()) {
return false;
}
boolean ret = false;
actions.removeUnreachableActions();
actions.removeZeroJumps();
ActionConstantPool cPool = getConstantPool(actions);
FastActionListIterator iterator = actions.iterator();
boolean first = true;
while (iterator.hasNext()) {
ActionItem actionItem = iterator.next();
ExecutionResult result = new ExecutionResult();
executeActions(actionItem, cPool, result, fakeFunctions, useVariables, first);
if (result.item != null && result.resultValue == null) {
int newIstructionCount = 1 /*jump */ + result.stack.size();
if (result.constantPool != null) {
newIstructionCount++;
}
newIstructionCount += 3 * result.variables.size(); /* 2x Push + Set or Define */
boolean allValueValid = true;
for (Object value : result.variables.values()) {
if (!ActionPush.isValidValue(value)) {
allValueValid = false;
break;
}
}
int unreachableCount = actions.getUnreachableActionCount(actionItem, result.item);
if (allValueValid && newIstructionCount < unreachableCount) {
if (result.stack.isEmpty() && result.variables.isEmpty() && result.constantPool == null && actionItem.action instanceof ActionJump) {
actionItem.setJumpTarget(result.item);
} else {
ActionItem prevActionItem = actionItem.prev;
if (result.constantPool != null) {
ActionConstantPool constantPool2 = new ActionConstantPool(new ArrayList<>(result.constantPool.constantPool));
ActionItem constantPoolItem = new ActionItem(constantPool2);
iterator.addBefore(constantPoolItem);
}
for (String variableName : result.variables.keySet()) {
Object value = result.variables.get(variableName);
ActionPush push = new ActionPush(variableName);
ActionItem pushItem = new ActionItem(push);
iterator.addBefore(pushItem);
push = new ActionPush(value);
pushItem = new ActionItem(push);
iterator.addBefore(pushItem);
if (result.defines.contains(variableName)) {
ActionDefineLocal defineLocal = new ActionDefineLocal();
ActionItem defineLocalItem = new ActionItem(defineLocal);
iterator.addBefore(defineLocalItem);
} else {
ActionSetVariable setVariable = new ActionSetVariable();
ActionItem setVariableItem = new ActionItem(setVariable);
iterator.addBefore(setVariableItem);
}
}
if (!result.stack.isEmpty()) {
for (GraphTargetItem graphTargetItem : result.stack) {
ActionPush push = new ActionPush(graphTargetItem.getResult());
ActionItem pushItem = new ActionItem(push);
iterator.addBefore(pushItem);
}
}
ActionJump jump = new ActionJump(0);
ActionItem jumpItem = new ActionItem(jump);
jumpItem.setJumpTarget(result.item);
iterator.addBefore(jumpItem);
actions.replaceJumpTargets(actionItem, prevActionItem.next);
}
ActionItem prevItem = actionItem.prev;
actions.removeUnreachableActions();
actions.removeZeroJumps();
iterator.setCurrent(prevItem.next.next);
ret = true;
}
}
first = false;
}
return ret;
}
private boolean removeObfuscatedUnusedVariables(FastActionList actions) throws InterruptedException {
if (actions.isEmpty()) {
return false;
}
Map<String, Integer> pushValues = getPushValues(actions);
boolean ret = false;
// Push, Push DefineLocal => remove when first pushed value is obfuscated and never used
FastActionListIterator iterator = actions.iterator();
while (iterator.hasNext()) {
Action a = iterator.next().action;
Action a1 = iterator.peek(0).action;
Action a2 = iterator.peek(1).action;
if (a instanceof ActionPush && a1 instanceof ActionPush && a2 instanceof ActionDefineLocal) {
ActionPush pushName = (ActionPush) a;
ActionPush pushValue = (ActionPush) a1;
if (pushName.values.size() == 1 && pushValue.values.size() == 1) {
String strName = EcmaScript.toString(pushName.values.get(0), pushName.constantPool);
if (isFakeName(strName) && pushValues.get(strName) == 1) {
iterator.remove(); // Push name
iterator.next();
iterator.remove(); // Push value
iterator.next();
iterator.remove(); // DefineLocal
ret = true;
}
}
}
}
return ret;
}
private Map<String, Integer> getPushValues(FastActionList actions) {
Map<String, Integer> ret = new HashMap<>();
for (ActionItem actionItem : actions) {
Action action = actionItem.action;
if (action instanceof ActionPush) {
ActionPush push = (ActionPush) action;
for (int i = 0; i < push.values.size(); i++) {
String str = EcmaScript.toString(push.values.get(i), push.constantPool);
Integer cnt = ret.get(str);
cnt = cnt == null ? 1 : cnt + 1;
ret.put(str, cnt);
}
}
}
return ret;
}
private ActionConstantPool getConstantPool(FastActionList actions) {
ActionConstantPool cPool = null;
for (ActionItem actionItem : actions) {
Action action = actionItem.action;
if (action instanceof ActionConstantPool) {
if (cPool != null) {
// there are multiple constant pools
return null;
}
cPool = (ActionConstantPool) action;
}
}
return cPool;
}
private Map<String, Object> getFakeFunctionResults(FastActionList actions) throws InterruptedException {
/*
DefineFunction "fakeName" 0 {
Push 1777
Return
}
*/
Map<String, Object> results = new HashMap<>();
for (ActionItem actionItem : actions) {
Action action = actionItem.action;
if (action instanceof ActionDefineFunction) {
ActionDefineFunction def = (ActionDefineFunction) action;
if (def.paramNames.isEmpty() && def.functionName.length() > 0) {
// remove funcion only when the function name contains only non printable characters
if (!isFakeName(def.functionName)) {
continue;
}
ExecutionResult result = new ExecutionResult();
ActionItem lastActionItem = actionItem.getContainerLastActions().get(0);
// has at least 1 inner item
if (lastActionItem != actionItem) {
actions.setExcludedFlags(true);
ActionItem actionItem2 = actionItem;
do {
actionItem2.excluded = false;
actionItem2 = actionItem2.next;
} while (actionItem2 != lastActionItem && actionItem2 != actions.last());
actionItem2.excluded = false;
executeActions(actionItem.next, null, result, null, true, false);
if (result.resultValue != null) {
results.put(def.functionName, result.resultValue);
actions.removeIncludedActions();
}
}
}
}
}
actions.setExcludedFlags(false);
return results;
}
protected boolean isFakeName(String name) {
for (char ch : name.toCharArray()) {
if (ch > 31) {
return false;
}
}
return true;
}
private void executeActions(ActionItem item, ActionConstantPool constantPool, ExecutionResult result, Map<String, Object> fakeFunctions, boolean useVariables, boolean allowGetUninitializedVariables) throws InterruptedException {
List<GraphTargetItem> output = new ArrayList<>();
ActionLocalData localData = new ActionLocalData();
FixItemCounterTranslateStack stack = new FixItemCounterTranslateStack("");
int instructionsProcessed = 0;
ActionConstantPool lastConstantPool = null;
while (true) {
if (item.isExcluded()) {
break;
}
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
if (instructionsProcessed > executionLimit) {
break;
}
Action action = item.action;
/*System.out.print(action.getASMSource(actions, new ArrayList<Long>(), ScriptExportMode.PCODE));
for (int j = 0; j < stack.size(); j++) {
System.out.print(" '" + stack.get(j).getResult() + "'");
}
System.out.println();*/
if (action instanceof ActionConstantPool) {
lastConstantPool = (ActionConstantPool) action;
}
if (action instanceof ActionDefineLocal) {
if (stack.size() < 2) {
break;
}
String variableName = stack.peek(2).getResult().toString();
result.defines.add(variableName);
}
if (action instanceof ActionGetVariable) {
if (stack.isEmpty()) {
break;
}
GraphTargetItem variableNameObj = stack.peek();
if (!(variableNameObj instanceof DirectValueActionItem)) {
// avoid dynamic variable names, for example: eval("item" add i);
break;
}
String variableName = variableNameObj.getResult().toString();
if (!localData.variables.containsKey(variableName)
&& (!allowGetUninitializedVariables || !isFakeName(variableName))) {
break;
}
}
if (action instanceof ActionSetVariable) {
if (stack.size() < 2) {
break;
}
if (!(stack.peek(2) instanceof DirectValueActionItem)) {
// avoid dynamic variable names, for example: set("item" add i, 1);
break;
}
}
if (action instanceof ActionCallFunction) {
if (stack.size() < 2) {
break;
}
String functionName = stack.pop().getResult().toString();
long numArgs = EcmaScript.toUint32(stack.pop().getResult());
if (numArgs == 0) {
if (fakeFunctions != null && fakeFunctions.containsKey(functionName)) {
stack.push(new DirectValueActionItem(fakeFunctions.get(functionName)));
} else {
break;
}
} else {
break;
}
} else {
// do not throw EmptyStackException, much faster
int requiredStackSize = action.getStackPopCount(localData, stack);
if (stack.size() < requiredStackSize) {
break;
}
action.translate(localData, stack, output, Graph.SOP_USE_STATIC, "");
}
if (!useVariables && (action instanceof ActionDefineLocal
|| action instanceof ActionGetVariable
|| action instanceof ActionSetVariable
|| action instanceof ActionConstantPool
|| action instanceof ActionCallFunction
|| action instanceof ActionReturn
|| action instanceof ActionEnd)) {
break;
}
if (!(action instanceof ActionPush
|| action instanceof ActionPushDuplicate
//|| action instanceof ActionPop
|| action instanceof ActionAsciiToChar
|| action instanceof ActionCharToAscii
|| action instanceof ActionDecrement
|| action instanceof ActionIncrement
|| action instanceof ActionNot
|| action instanceof ActionToInteger
|| action instanceof ActionToNumber
|| action instanceof ActionToString
|| action instanceof ActionTypeOf
|| action instanceof ActionStringLength
|| action instanceof ActionMBAsciiToChar
|| action instanceof ActionMBStringLength
|| action instanceof ActionAnd
|| action instanceof ActionAdd
|| action instanceof ActionAdd2
|| action instanceof ActionBitAnd
|| action instanceof ActionBitLShift
|| action instanceof ActionBitOr
|| action instanceof ActionBitRShift
|| action instanceof ActionBitURShift
|| action instanceof ActionBitXor
|| action instanceof ActionDivide
|| action instanceof ActionEquals
|| action instanceof ActionEquals2
|| action instanceof ActionGreater
|| action instanceof ActionLess
|| action instanceof ActionLess2 // todo: fix (tz.swf/frame_6/DoAction: _loc3_.icon.gotoAndStop((Number(item.cost) || 0) >= 0?1:2)
|| action instanceof ActionModulo
|| action instanceof ActionMultiply
|| action instanceof ActionOr
|| action instanceof ActionStringAdd
|| action instanceof ActionStringEquals
|| action instanceof ActionStringGreater
|| action instanceof ActionStringLess
|| action instanceof ActionSubtract
|| action instanceof ActionIf
|| action instanceof ActionJump
|| action instanceof ActionDefineLocal
|| action instanceof ActionGetVariable
|| action instanceof ActionSetVariable
|| action instanceof ActionConstantPool
|| action instanceof ActionCallFunction
|| action instanceof ActionReturn
|| action instanceof ActionEnd)) {
break;
}
if (action instanceof ActionPush) {
ActionPush push = (ActionPush) action;
boolean ok = true;
instructionsProcessed += push.values.size() - 1;
for (Object value : push.values) {
if ((constantPool == null && value instanceof ConstantIndex) || value instanceof RegisterNumber) {
ok = false;
break;
}
}
if (!ok) {
break;
}
}
ActionItem prevItem = item;
if (action instanceof ActionJump) {
item = item.getJumpTarget();
} else if (action instanceof ActionIf) {
if (stack.isEmpty()) {
break;
}
if (EcmaScript.toBoolean(stack.pop().getResult())) {
item = item.getJumpTarget();
} else {
item = item.next;
}
} else {
item = item.next;
}
instructionsProcessed++;
if ((stack.allItemsFixed() || action instanceof ActionEnd) && !(action instanceof ActionPush)) {
result.item = item;
result.instructionsProcessed = instructionsProcessed;
result.constantPool = lastConstantPool;
result.variables.clear();
for (String variableName : localData.variables.keySet()) {
Object value = localData.variables.get(variableName).getResult();
result.variables.put(variableName, value);
}
result.stack.clear();
result.stack.addAll(stack);
}
if (action instanceof ActionReturn) {
if (output.size() > 0) {
ReturnActionItem ret = (ReturnActionItem) output.get(output.size() - 1);
result.resultValue = ret.value.getResult();
}
break;
} else if (action instanceof ActionEnd) {
result.item = prevItem;
break;
}
}
}
@Override
public void actionTreeCreated(List<GraphTargetItem> tree, SWF swf) {
if (tree.size() > 0) {
GraphTargetItem firstItem = tree.get(0);
if (firstItem instanceof PushItem && firstItem.value instanceof FalseItem) {
tree.remove(0);
}
}
}
@Override
public byte[] proxyFileCatched(byte[] data) {
return null;
}
@Override
public void swfParsed(SWF swf) {
}
@Override
public void abcParsed(ABC abc, SWF swf) {
}
@Override
public void methodBodyParsed(MethodBody body, SWF swf) {
}
@Override
public void avm2CodeRemoveTraps(String path, int classIndex, boolean isStatic, int scriptIndex, ABC abc, Trait trait, int methodInfo, MethodBody body) throws InterruptedException {
}
class ExecutionResult {
public ActionItem item = null;
public int instructionsProcessed = -1;
public TranslateStack stack = new TranslateStack("?");
public Object resultValue;
public ActionConstantPool constantPool;
public Map<String, Object> variables = new HashMap<>();
public Set<String> defines = new HashSet<>();
}
}

437
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/deobfuscation/ActionDeobfuscatorSimpleOld.java
View File

@@ -1,437 +0,0 @@
/*
* Copyright (C) 2010-2015 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.action.deobfuscation;
import com.jpexs.decompiler.flash.SWF;
import com.jpexs.decompiler.flash.abc.ABC;
import com.jpexs.decompiler.flash.abc.types.MethodBody;
import com.jpexs.decompiler.flash.abc.types.traits.Trait;
import com.jpexs.decompiler.flash.action.Action;
import com.jpexs.decompiler.flash.action.ActionList;
import com.jpexs.decompiler.flash.action.ActionLocalData;
import com.jpexs.decompiler.flash.action.swf4.ActionAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionAnd;
import com.jpexs.decompiler.flash.action.swf4.ActionAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionCharToAscii;
import com.jpexs.decompiler.flash.action.swf4.ActionDivide;
import com.jpexs.decompiler.flash.action.swf4.ActionEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionGetTime;
import com.jpexs.decompiler.flash.action.swf4.ActionIf;
import com.jpexs.decompiler.flash.action.swf4.ActionJump;
import com.jpexs.decompiler.flash.action.swf4.ActionLess;
import com.jpexs.decompiler.flash.action.swf4.ActionMBAsciiToChar;
import com.jpexs.decompiler.flash.action.swf4.ActionMBStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionMultiply;
import com.jpexs.decompiler.flash.action.swf4.ActionNot;
import com.jpexs.decompiler.flash.action.swf4.ActionOr;
import com.jpexs.decompiler.flash.action.swf4.ActionPush;
import com.jpexs.decompiler.flash.action.swf4.ActionStringAdd;
import com.jpexs.decompiler.flash.action.swf4.ActionStringEquals;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLength;
import com.jpexs.decompiler.flash.action.swf4.ActionStringLess;
import com.jpexs.decompiler.flash.action.swf4.ActionSubtract;
import com.jpexs.decompiler.flash.action.swf4.ActionToInteger;
import com.jpexs.decompiler.flash.action.swf4.ConstantIndex;
import com.jpexs.decompiler.flash.action.swf4.RegisterNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionAdd2;
import com.jpexs.decompiler.flash.action.swf5.ActionBitAnd;
import com.jpexs.decompiler.flash.action.swf5.ActionBitLShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitOr;
import com.jpexs.decompiler.flash.action.swf5.ActionBitRShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitURShift;
import com.jpexs.decompiler.flash.action.swf5.ActionBitXor;
import com.jpexs.decompiler.flash.action.swf5.ActionDecrement;
import com.jpexs.decompiler.flash.action.swf5.ActionEquals2;
import com.jpexs.decompiler.flash.action.swf5.ActionIncrement;
import com.jpexs.decompiler.flash.action.swf5.ActionLess2;
import com.jpexs.decompiler.flash.action.swf5.ActionModulo;
import com.jpexs.decompiler.flash.action.swf5.ActionPushDuplicate;
import com.jpexs.decompiler.flash.action.swf5.ActionToNumber;
import com.jpexs.decompiler.flash.action.swf5.ActionToString;
import com.jpexs.decompiler.flash.action.swf5.ActionTypeOf;
import com.jpexs.decompiler.flash.action.swf6.ActionGreater;
import com.jpexs.decompiler.flash.action.swf6.ActionStringGreater;
import com.jpexs.decompiler.flash.ecma.EcmaScript;
import com.jpexs.decompiler.flash.helpers.SWFDecompilerListener;
import com.jpexs.decompiler.graph.Graph;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.TranslateException;
import com.jpexs.decompiler.graph.TranslateStack;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author JPEXS
*/
public class ActionDeobfuscatorSimpleOld implements SWFDecompilerListener {
private final int executionLimit = 30000;
@Override
public void actionListParsed(ActionList actions, SWF swf) throws InterruptedException {
removeGetTimes(actions);
removeObfuscationIfs(actions);
}
private boolean removeGetTimes(ActionList actions) {
if (actions.size() == 0) {
return false;
}
boolean changed = true;
while (changed) {
changed = false;
removeUnreachableActions(actions);
removeZeroJumps(actions);
// GetTime, If => Jump, assume GetTime > 0
for (int i = 0; i < actions.size() - 1; i++) {
Action a = actions.get(i);
Action a2 = actions.get(i + 1);
if (a instanceof ActionGetTime && a2 instanceof ActionIf) {
ActionIf aIf = (ActionIf) a2;
ActionJump jump = new ActionJump(0);
jump.setAddress(aIf.getAddress());
jump.setJumpOffset(aIf.getJumpOffset());
actions.remove(i); // GetTime
actions.remove(i); // If
actions.addAction(i, jump); // replace If with Jump
changed = true;
break;
}
}
if (!changed) {
// GetTime, Increment If => Jump
for (int i = 0; i < actions.size() - 2; i++) {
Action a = actions.get(i);
Action a1 = actions.get(i + 1);
Action a2 = actions.get(i + 2);
if (a instanceof ActionGetTime && a1 instanceof ActionIncrement && a2 instanceof ActionIf) {
ActionIf aIf = (ActionIf) a2;
ActionJump jump = new ActionJump(0);
jump.setAddress(aIf.getAddress());
jump.setJumpOffset(aIf.getJumpOffset());
actions.remove(i); // GetTime
actions.remove(i); // Increment
actions.remove(i); // If
actions.addAction(i, jump); // replace If with Jump
changed = true;
break;
}
}
}
}
return false;
}
private boolean removeObfuscationIfs(ActionList actions) throws InterruptedException {
if (actions.size() == 0) {
return false;
}
removeUnreachableActions(actions);
removeZeroJumps(actions);
for (int i = 0; i < actions.size(); i++) {
ExecutionResult result = new ExecutionResult();
executeActions(actions, i, actions.size() - 1, result);
if (result.idx != -1) {
int newIstructionCount = 1 /*jump */ + result.stack.size();
List<Action> unreachable = actions.getUnreachableActions(i, result.idx);
int unreachableCount = getActionCount(unreachable);
if (newIstructionCount < unreachableCount) {
Action target = actions.get(result.idx);
Action prevAction = actions.get(i);
if (result.stack.isEmpty() && prevAction instanceof ActionJump) {
ActionJump jump = (ActionJump) prevAction;
jump.setJumpOffset((int) (target.getAddress() - jump.getAddress() - jump.getTotalActionLength()));
} else {
if (!result.stack.isEmpty()) {
ActionPush push = new ActionPush(0);
push.values.clear();
for (GraphTargetItem graphTargetItem : result.stack) {
push.values.add(graphTargetItem.getResult());
}
push.setAddress(prevAction.getAddress());
actions.addAction(i++, push);
prevAction = push;
}
ActionJump jump = new ActionJump(0);
jump.setAddress(prevAction.getAddress());
jump.setJumpOffset((int) (target.getAddress() - jump.getAddress() - jump.getTotalActionLength()));
actions.addAction(i++, jump);
}
Action nextAction = actions.size() > i ? actions.get(i) : null;
removeUnreachableActions(actions);
removeZeroJumps(actions);
if (nextAction != null) {
int nextIdx = actions.indexOf(nextAction);
if (nextIdx < i) {
i = nextIdx;
}
}
}
}
}
return false;
}
protected boolean removeUnreachableActions(ActionList actions) {
List<Action> unreachableActions = actions.getUnreachableActions();
if (unreachableActions != null) {
actions.removeActions(unreachableActions);
}
return unreachableActions != null;
}
protected boolean removeZeroJumpsOld(ActionList actions) {
boolean result = false;
for (int i = 0; i < actions.size(); i++) {
Action action = actions.get(i);
if (action instanceof ActionJump && ((ActionJump) action).getJumpOffset() == 0) {
actions.removeAction(i);
i--;
result = true;
}
}
return result;
}
protected boolean removeZeroJumps(ActionList actions) {
List<Action> actionsToRemove = null;
for (int i = 0; i < actions.size(); i++) {
Action action = actions.get(i);
if (action instanceof ActionJump && ((ActionJump) action).getJumpOffset() == 0) {
if (actionsToRemove == null) {
actionsToRemove = new ArrayList<>();
}
actionsToRemove.add(action);
}
}
if (actionsToRemove != null) {
actions.removeActions(actionsToRemove);
}
return actionsToRemove != null;
}
protected int getActionCount(List<Action> actions) {
if (actions == null) {
return 0;
}
int result = 0;
for (Action action : actions) {
if (action instanceof ActionPush) {
result += ((ActionPush) action).values.size();
} else {
result++;
}
}
return result;
}
protected boolean isFakeName(String name) {
for (char ch : name.toCharArray()) {
if (ch > 31) {
return false;
}
}
return true;
}
private void executeActions(ActionList actions, int idx, int endIdx, ExecutionResult result) throws InterruptedException {
List<GraphTargetItem> output = new ArrayList<>();
ActionLocalData localData = new ActionLocalData();
FixItemCounterTranslateStack stack = new FixItemCounterTranslateStack("");
int instructionsProcessed = 0;
while (true) {
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
if (idx > endIdx) {
break;
}
if (instructionsProcessed > executionLimit) {
break;
}
Action action = actions.get(idx);
/*System.out.print(action.getASMSource(actions, new ArrayList<Long>(), ScriptExportMode.PCODE));
for (int j = 0; j < stack.size(); j++) {
System.out.print(" '" + stack.get(j).getResult() + "'");
}
System.out.println();*/
// do not throw EmptyStackException, much faster
int requiredStackSize = action.getStackPopCount(localData, stack);
if (stack.size() < requiredStackSize) {
return;
}
action.translate(localData, stack, output, Graph.SOP_USE_STATIC, "");
if (!(action instanceof ActionPush
|| action instanceof ActionPushDuplicate
//|| action instanceof ActionPop
|| action instanceof ActionAsciiToChar
|| action instanceof ActionCharToAscii
|| action instanceof ActionDecrement
|| action instanceof ActionIncrement
|| action instanceof ActionNot
|| action instanceof ActionToInteger
|| action instanceof ActionToNumber
|| action instanceof ActionToString
|| action instanceof ActionTypeOf
|| action instanceof ActionStringLength
|| action instanceof ActionMBAsciiToChar
|| action instanceof ActionMBStringLength
|| action instanceof ActionAnd
|| action instanceof ActionAdd
|| action instanceof ActionAdd2
|| action instanceof ActionBitAnd
|| action instanceof ActionBitLShift
|| action instanceof ActionBitOr
|| action instanceof ActionBitRShift
|| action instanceof ActionBitURShift
|| action instanceof ActionBitXor
|| action instanceof ActionDivide
|| action instanceof ActionEquals
|| action instanceof ActionEquals2
|| action instanceof ActionGreater
|| action instanceof ActionLess
|| action instanceof ActionLess2 // todo: fix (tz.swf/frame_6/DoAction: _loc3_.icon.gotoAndStop((Number(item.cost) || 0) >= 0?1:2)
|| action instanceof ActionModulo
|| action instanceof ActionMultiply
|| action instanceof ActionOr
|| action instanceof ActionStringAdd
|| action instanceof ActionStringEquals
|| action instanceof ActionStringGreater
|| action instanceof ActionStringLess
|| action instanceof ActionSubtract
|| action instanceof ActionIf
|| action instanceof ActionJump)) {
break;
}
if (action instanceof ActionPush) {
ActionPush push = (ActionPush) action;
boolean ok = true;
instructionsProcessed += push.values.size() - 1;
for (Object value : push.values) {
if (value instanceof ConstantIndex || value instanceof RegisterNumber) {
ok = false;
break;
}
}
if (!ok) {
break;
}
}
idx++;
if (action instanceof ActionJump) {
ActionJump jump = (ActionJump) action;
long address = jump.getTargetAddress();
idx = actions.getIndexByAddress(address);
if (idx == -1) {
throw new TranslateException("Jump target not found: " + address);
}
}
if (action instanceof ActionIf) {
ActionIf aif = (ActionIf) action;
if (stack.isEmpty()) {
return;
}
if (EcmaScript.toBoolean(stack.pop().getResult())) {
long address = aif.getTargetAddress();
idx = actions.getIndexByAddress(address);
if (idx == -1) {
throw new TranslateException("If target not found: " + address);
}
}
}
instructionsProcessed++;
if (stack.allItemsFixed() && !(action instanceof ActionPush)) {
result.idx = idx == actions.size() ? idx - 1 : idx;
result.instructionsProcessed = instructionsProcessed;
result.stack.clear();
result.stack.addAll(stack);
}
}
}
@Override
public void actionTreeCreated(List<GraphTargetItem> tree, SWF swf) {
}
@Override
public byte[] proxyFileCatched(byte[] data) {
return null;
}
@Override
public void swfParsed(SWF swf) {
}
@Override
public void abcParsed(ABC abc, SWF swf) {
}
@Override
public void methodBodyParsed(MethodBody body, SWF swf) {
}
@Override
public void avm2CodeRemoveTraps(String path, int classIndex, boolean isStatic, int scriptIndex, ABC abc, Trait trait, int methodInfo, MethodBody body) throws InterruptedException {
}
class ExecutionResult {
public int idx = -1;
public int instructionsProcessed = -1;
public TranslateStack stack = new TranslateStack("?");
public Object resultValue;
}
}