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AS1/2: using eval on invalid identifiers

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Jindra Petřík
2014-08-23 20:47:00 +02:00
parent cdfb0cf538
commit c8208c0360
3 changed files with 272 additions and 263 deletions
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292
src/com/jpexs/decompiler/flash/action/model/GetVariableActionItem.java
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@@ -1,143 +1,149 @@
/*
* Copyright (C) 2010-2014 JPEXS
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.jpexs.decompiler.flash.action.model;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.action.swf4.ActionGetVariable;
import com.jpexs.decompiler.flash.ecma.Undefined;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
import com.jpexs.decompiler.graph.CompilationException;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphSourceItemPos;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.SourceGenerator;
import com.jpexs.decompiler.graph.model.LocalData;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
public class GetVariableActionItem extends ActionItem {
public GraphTargetItem name;
private GraphTargetItem computedValue;
private Object computedResult;
private boolean computedCompiletime = false;
private boolean computedVariableComputed = false;
@Override
public List<GraphTargetItem> getAllSubItems() {
List<GraphTargetItem> ret = new ArrayList<>();
ret.add(name);
return ret;
}
public GetVariableActionItem(GraphSourceItem instruction, GraphTargetItem value) {
super(instruction, PRECEDENCE_PRIMARY);
this.name = value;
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
return stripQuotes(name, localData, writer);
}
@Override
public List<GraphSourceItemPos> getNeededSources() {
List<GraphSourceItemPos> ret = super.getNeededSources();
ret.addAll(name.getNeededSources());
return ret;
}
@Override
public boolean isVariableComputed() {
return true;
}
@Override
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
if (computedValue == null) {
return false;
}
return computedCompiletime;
}
@Override
public Object getResult() {
if (computedValue == null) {
return new Undefined();
}
return computedResult;
}
public void setComputedValue(GraphTargetItem computedValue) {
this.computedValue = computedValue;
if (computedValue != null) {
computedCompiletime = computedValue.isCompileTime();
if (computedCompiletime) {
computedResult = computedValue.getResult();
}
computedVariableComputed = computedValue.isVariableComputed();
}
}
@Override
public int hashCode() {
int hash = 3;
hash = 13 * hash + (this.name != null ? this.name.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final GetVariableActionItem other = (GetVariableActionItem) obj;
if (this.name != other.name && (this.name == null || !this.name.equals(other.name))) {
return false;
}
return true;
}
@Override
public boolean valueEquals(GraphTargetItem obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final GetVariableActionItem other = (GetVariableActionItem) obj;
if (this.name != other.name && (this.name == null || !this.name.valueEquals(other.name))) {
return false;
}
return true;
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSourceMerge(localData, generator, name, new ActionGetVariable());
}
@Override
public boolean hasReturnValue() {
return true;
}
}
/*
* Copyright (C) 2010-2014 JPEXS
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.jpexs.decompiler.flash.action.model;
import com.jpexs.decompiler.flash.SourceGeneratorLocalData;
import com.jpexs.decompiler.flash.action.Deobfuscation;
import com.jpexs.decompiler.flash.action.swf4.ActionGetVariable;
import com.jpexs.decompiler.flash.ecma.Undefined;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
import com.jpexs.decompiler.graph.CompilationException;
import com.jpexs.decompiler.graph.GraphSourceItem;
import com.jpexs.decompiler.graph.GraphSourceItemPos;
import com.jpexs.decompiler.graph.GraphTargetItem;
import com.jpexs.decompiler.graph.SourceGenerator;
import com.jpexs.decompiler.graph.model.LocalData;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
public class GetVariableActionItem extends ActionItem {
public GraphTargetItem name;
private GraphTargetItem computedValue;
private Object computedResult;
private boolean computedCompiletime = false;
private boolean computedVariableComputed = false;
@Override
public List<GraphTargetItem> getAllSubItems() {
List<GraphTargetItem> ret = new ArrayList<>();
ret.add(name);
return ret;
}
public GetVariableActionItem(GraphSourceItem instruction, GraphTargetItem value) {
super(instruction, PRECEDENCE_PRIMARY);
this.name = value;
}
@Override
public GraphTextWriter appendTo(GraphTextWriter writer, LocalData localData) throws InterruptedException {
if((!(name instanceof DirectValueActionItem)) || (!((DirectValueActionItem)name).isString()) ||(!Deobfuscation.isValidName(((DirectValueActionItem)name).toStringNoQuotes(localData)))){
writer.append("eval(");
name.appendTo(writer, localData);
return writer.append(")");
}
return stripQuotes(name, localData, writer);
}
@Override
public List<GraphSourceItemPos> getNeededSources() {
List<GraphSourceItemPos> ret = super.getNeededSources();
ret.addAll(name.getNeededSources());
return ret;
}
@Override
public boolean isVariableComputed() {
return true;
}
@Override
public boolean isCompileTime(Set<GraphTargetItem> dependencies) {
if (computedValue == null) {
return false;
}
return computedCompiletime;
}
@Override
public Object getResult() {
if (computedValue == null) {
return new Undefined();
}
return computedResult;
}
public void setComputedValue(GraphTargetItem computedValue) {
this.computedValue = computedValue;
if (computedValue != null) {
computedCompiletime = computedValue.isCompileTime();
if (computedCompiletime) {
computedResult = computedValue.getResult();
}
computedVariableComputed = computedValue.isVariableComputed();
}
}
@Override
public int hashCode() {
int hash = 3;
hash = 13 * hash + (this.name != null ? this.name.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final GetVariableActionItem other = (GetVariableActionItem) obj;
if (this.name != other.name && (this.name == null || !this.name.equals(other.name))) {
return false;
}
return true;
}
@Override
public boolean valueEquals(GraphTargetItem obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final GetVariableActionItem other = (GetVariableActionItem) obj;
if (this.name != other.name && (this.name == null || !this.name.valueEquals(other.name))) {
return false;
}
return true;
}
@Override
public List<GraphSourceItem> toSource(SourceGeneratorLocalData localData, SourceGenerator generator) throws CompilationException {
return toSourceMerge(localData, generator, name, new ActionGetVariable());
}
@Override
public boolean hasReturnValue() {
return true;
}
}