internal virtual void init(int p1, ActionList p2, ConstantPool p3, String p4, DefineFunction p5)
{
at = p1;
actions = p2;
pool = p3;
className = p4;
function = p5;
}
public override void defineFunction2(DefineFunction action)
{
start(action);
out_Renamed.Write(" " + action.name + "(");
for (int i = 0; i < action.params_Renamed.Length; i++)
{
out_Renamed.Write("$" + action.paramReg[i] + "=" + action.params_Renamed[i]);
if (i + 1 < action.params_Renamed.Length)
{
out_Renamed.Write(", ");
}
}
out_Renamed.Write(")");
int regno = 1;
if ((action.flags & DefineFunction.kPreloadThis) != 0)
{
out_Renamed.Write(" $" + (regno++) + "=this");
}
if ((action.flags & DefineFunction.kPreloadArguments) != 0)
{
out_Renamed.Write(" $" + (regno++) + "=arguments");
}
if ((action.flags & DefineFunction.kPreloadSuper) != 0)
{
out_Renamed.Write(" $" + (regno++) + "=super");
}
if ((action.flags & DefineFunction.kPreloadRoot) != 0)
{
out_Renamed.Write(" $" + (regno++) + "=_root");
}
if ((action.flags & DefineFunction.kPreloadParent) != 0)
{
out_Renamed.Write(" $" + (regno++) + "=_parent");
}
if ((action.flags & DefineFunction.kPreloadGlobal) != 0)
{
out_Renamed.Write(" $" + (regno) + "=_global");
}
out_Renamed.WriteLine(" {");
indent_Renamed_Field++;
action.actionList.visitAll(this);
indent_Renamed_Field--;
indent();
out_Renamed.WriteLine("} " + action.name);
}
public override void defineFunction(DefineFunction action)
{
start(action);
out_Renamed.Write(" " + action.name + "(");
for (int i = 0; i < action.params_Renamed.Length; i++)
{
out_Renamed.Write(action.params_Renamed[i]);
if (i + 1 < action.params_Renamed.Length)
{
out_Renamed.Write(", ");
}
}
out_Renamed.WriteLine(") {");
indent_Renamed_Field++;
action.actionList.visitAll(this);
indent_Renamed_Field--;
indent();
out_Renamed.WriteLine("} " + action.name);
}
public static InstructionCollection Parse(Stream input, long instructionsPosition)
{
var instructions = new SortedList <int, InstructionBase>();
using (var helper = new InstructionParseHelper(input, instructionsPosition))
{
var reader = helper.GetReader();
while (helper.CanParse(instructions))
{
//now reader the instructions
var instructionPosition = helper.CurrentPosition;
var type = reader.ReadByteAsEnum <InstructionType>();
var requireAlignment = InstructionAlignment.IsAligned(type);
if (requireAlignment)
{
reader.Align(4);
}
InstructionBase instruction = null;
var parameters = new List <Value>();
switch (type)
{
case InstructionType.ToNumber:
instruction = new ToNumber();
break;
case InstructionType.NextFrame:
instruction = new NextFrame();
break;
case InstructionType.Play:
instruction = new Play();
break;
case InstructionType.Stop:
instruction = new Stop();
break;
case InstructionType.Add:
instruction = new Add();
break;
case InstructionType.Subtract:
instruction = new Subtract();
break;
case InstructionType.Multiply:
instruction = new Multiply();
break;
case InstructionType.Divide:
instruction = new Divide();
break;
case InstructionType.Not:
instruction = new Not();
break;
case InstructionType.StringEquals:
instruction = new StringEquals();
break;
case InstructionType.Pop:
instruction = new Pop();
break;
case InstructionType.ToInteger:
instruction = new ToInteger();
break;
case InstructionType.GetVariable:
instruction = new GetVariable();
break;
case InstructionType.SetVariable:
instruction = new SetVariable();
break;
case InstructionType.StringConcat:
instruction = new StringConcat();
break;
case InstructionType.GetProperty:
instruction = new GetProperty();
break;
case InstructionType.SetProperty:
instruction = new SetProperty();
break;
case InstructionType.Trace:
instruction = new Trace();
break;
case InstructionType.Random:
instruction = new RandomNumber();
break;
case InstructionType.Delete:
instruction = new Delete();
break;
case InstructionType.Delete2:
instruction = new Delete2();
break;
case InstructionType.DefineLocal:
instruction = new DefineLocal();
break;
case InstructionType.CallFunction:
instruction = new CallFunction();
break;
case InstructionType.Return:
instruction = new Return();
break;
case InstructionType.Modulo:
instruction = new Modulo();
break;
case InstructionType.NewObject:
instruction = new NewObject();
break;
case InstructionType.InitArray:
instruction = new InitArray();
break;
case InstructionType.InitObject:
instruction = new InitObject();
break;
case InstructionType.TypeOf:
instruction = new TypeOf();
break;
case InstructionType.Add2:
instruction = new Add2();
break;
case InstructionType.LessThan2:
instruction = new LessThan2();
break;
case InstructionType.Equals2:
instruction = new Equals2();
break;
case InstructionType.ToString:
instruction = new ToString();
break;
case InstructionType.PushDuplicate:
instruction = new PushDuplicate();
break;
case InstructionType.GetMember:
instruction = new GetMember();
break;
case InstructionType.SetMember:
instruction = new SetMember();
break;
case InstructionType.Increment:
instruction = new Increment();
break;
case InstructionType.Decrement:
instruction = new Decrement();
break;
case InstructionType.CallMethod:
instruction = new CallMethod();
break;
case InstructionType.Enumerate2:
instruction = new Enumerate2();
break;
case InstructionType.EA_PushThis:
instruction = new PushThis();
break;
case InstructionType.EA_PushZero:
instruction = new PushZero();
break;
case InstructionType.EA_PushOne:
instruction = new PushOne();
break;
case InstructionType.EA_CallFunc:
instruction = new CallFunc();
break;
case InstructionType.EA_CallMethodPop:
instruction = new CallMethodPop();
break;
case InstructionType.BitwiseXOr:
instruction = new BitwiseXOr();
break;
case InstructionType.Greater:
instruction = new Greater();
break;
case InstructionType.EA_PushThisVar:
instruction = new PushThisVar();
break;
case InstructionType.EA_PushGlobalVar:
instruction = new PushGlobalVar();
break;
case InstructionType.EA_ZeroVar:
instruction = new ZeroVar();
break;
case InstructionType.EA_PushTrue:
instruction = new PushTrue();
break;
case InstructionType.EA_PushFalse:
instruction = new PushFalse();
break;
case InstructionType.EA_PushNull:
instruction = new PushNull();
break;
case InstructionType.EA_PushUndefined:
instruction = new PushUndefined();
break;
case InstructionType.GotoFrame:
instruction = new GotoFrame();
parameters.Add(Value.FromInteger(reader.ReadInt32()));
break;
case InstructionType.GetURL:
instruction = new GetUrl();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.SetRegister:
instruction = new SetRegister();
parameters.Add(Value.FromInteger(reader.ReadInt32()));
break;
case InstructionType.ConstantPool:
{
instruction = new ConstantPool();
var count = reader.ReadUInt32();
var constants = reader.ReadFixedSizeArrayAtOffset <uint>(() => reader.ReadUInt32(), count);
foreach (var constant in constants)
{
parameters.Add(Value.FromConstant(constant));
}
}
break;
case InstructionType.GotoLabel:
instruction = new GotoLabel();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.DefineFunction2:
{
instruction = new DefineFunction2();
var name = reader.ReadStringAtOffset();
var nParams = reader.ReadUInt32();
var nRegisters = reader.ReadByte();
var flags = reader.ReadUInt24();
//list of parameter strings
var paramList = reader.ReadFixedSizeListAtOffset <FunctionArgument>(() => new FunctionArgument()
{
Register = reader.ReadInt32(),
Parameter = reader.ReadStringAtOffset(),
}, nParams);
parameters.Add(Value.FromString(name));
parameters.Add(Value.FromInteger((int)nParams));
parameters.Add(Value.FromInteger((int)nRegisters));
parameters.Add(Value.FromInteger((int)flags));
foreach (var param in paramList)
{
parameters.Add(Value.FromInteger(param.Register));
parameters.Add(Value.FromString(param.Parameter));
}
//body size of the function
parameters.Add(Value.FromInteger(reader.ReadInt32()));
//skip 8 bytes
reader.ReadUInt64();
}
break;
case InstructionType.PushData:
{
instruction = new PushData();
var count = reader.ReadUInt32();
var constants = reader.ReadFixedSizeArrayAtOffset <uint>(() => reader.ReadUInt32(), count);
foreach (var constant in constants)
{
parameters.Add(Value.FromConstant(constant));
}
}
break;
case InstructionType.BranchAlways:
{
instruction = new BranchAlways();
var offset = reader.ReadInt32();
parameters.Add(Value.FromInteger(offset));
helper.ReportBranchOffset(offset);
}
break;
case InstructionType.GetURL2:
instruction = new GetUrl2();
break;
case InstructionType.DefineFunction:
{
instruction = new DefineFunction();
var name = reader.ReadStringAtOffset();
//list of parameter strings
var paramList = reader.ReadListAtOffset <string>(() => reader.ReadStringAtOffset());
parameters.Add(Value.FromString(name));
parameters.Add(Value.FromInteger(paramList.Count));
foreach (var param in paramList)
{
parameters.Add(Value.FromString(param));
}
//body size of the function
parameters.Add(Value.FromInteger(reader.ReadInt32()));
//skip 8 bytes
reader.ReadUInt64();
}
break;
case InstructionType.BranchIfTrue:
{
instruction = new BranchIfTrue();
var offset = reader.ReadInt32();
parameters.Add(Value.FromInteger(offset));
helper.ReportBranchOffset(offset);
}
break;
case InstructionType.GotoFrame2:
instruction = new GotoFrame2();
parameters.Add(Value.FromInteger(reader.ReadInt32()));
break;
case InstructionType.EA_PushString:
instruction = new PushString();
//the constant id that should be pushed
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.EA_PushConstantByte:
instruction = new PushConstantByte();
//the constant id that should be pushed
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_GetStringVar:
instruction = new GetStringVar();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.EA_SetStringVar:
instruction = new SetStringVar();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.EA_GetStringMember:
instruction = new GetStringMember();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.EA_SetStringMember:
instruction = new SetStringMember();
parameters.Add(Value.FromString(reader.ReadStringAtOffset()));
break;
case InstructionType.EA_PushValueOfVar:
instruction = new PushValueOfVar();
//the constant id that should be pushed
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_GetNamedMember:
instruction = new GetNamedMember();
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_CallNamedFuncPop:
instruction = new CallNamedFuncPop();
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_CallNamedFunc:
instruction = new CallNamedFunc();
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_CallNamedMethodPop:
instruction = new CallNamedMethodPop();
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.EA_PushFloat:
instruction = new PushFloat();
parameters.Add(Value.FromFloat(reader.ReadSingle()));
break;
case InstructionType.EA_PushByte:
instruction = new PushByte();
parameters.Add(Value.FromInteger(reader.ReadByte()));
break;
case InstructionType.EA_PushShort:
instruction = new PushShort();
parameters.Add(Value.FromInteger(reader.ReadUInt16()));
break;
case InstructionType.End:
instruction = new End();
break;
case InstructionType.EA_CallNamedMethod:
instruction = new CallNamedMethod();
parameters.Add(Value.FromConstant(reader.ReadByte()));
break;
case InstructionType.Var:
instruction = new Var();
break;
case InstructionType.EA_PushRegister:
instruction = new PushRegister();
parameters.Add(Value.FromInteger(reader.ReadByte()));
break;
case InstructionType.EA_PushConstantWord:
instruction = new PushConstantWord();
parameters.Add(Value.FromConstant(reader.ReadUInt16()));
break;
case InstructionType.EA_CallFuncPop:
instruction = new CallFunctionPop();
break;
case InstructionType.StrictEqual:
instruction = new StrictEquals();
break;
default:
throw new InvalidDataException("Unimplemented bytecode instruction:" + type.ToString());
}
if (instruction != null)
{
instruction.Parameters = parameters;
instructions.Add(instructionPosition, instruction);
}
}
}
return(new InstructionCollection(instructions));
}
public void Parse()
{
var current = _reader.BaseStream.Position;
_reader.BaseStream.Seek(_offset, SeekOrigin.Begin);
bool parsing = true;
bool branched = false;
int branchBytes = 0;
while (parsing)
{
//now reader the instructions
var type = _reader.ReadByteAsEnum <InstructionType>();
var aligned = InstructionAlignment.IsAligned(type);
if (aligned)
{
var padding = _reader.Align(4);
if (padding > 0)
{
Items.Add(new Padding(padding));
if (branched)
{
branchBytes -= (int)padding;
if (branchBytes <= 0)
{
branched = false;
branchBytes = 0;
}
}
}
}
InstructionBase instruction = null;
List <Value> parameters = new List <Value>();
switch (type)
{
case InstructionType.ToNumber:
instruction = new ToNumber();
break;
case InstructionType.NextFrame:
instruction = new NextFrame();
break;
case InstructionType.Play:
instruction = new Play();
break;
case InstructionType.Stop:
instruction = new Stop();
break;
case InstructionType.Add:
instruction = new Add();
break;
case InstructionType.Subtract:
instruction = new Subtract();
break;
case InstructionType.Multiply:
instruction = new Multiply();
break;
case InstructionType.Divide:
instruction = new Divide();
break;
case InstructionType.Not:
instruction = new Not();
break;
case InstructionType.StringEquals:
instruction = new StringEquals();
break;
case InstructionType.Pop:
instruction = new Pop();
break;
case InstructionType.ToInteger:
instruction = new ToInteger();
break;
case InstructionType.GetVariable:
instruction = new GetVariable();
break;
case InstructionType.SetVariable:
instruction = new SetVariable();
break;
case InstructionType.StringConcat:
instruction = new StringConcat();
break;
case InstructionType.GetProperty:
instruction = new GetProperty();
break;
case InstructionType.SetProperty:
instruction = new SetProperty();
break;
case InstructionType.Trace:
instruction = new Trace();
break;
case InstructionType.Delete:
instruction = new Delete();
break;
case InstructionType.Delete2:
instruction = new Delete2();
break;
case InstructionType.DefineLocal:
instruction = new DefineLocal();
break;
case InstructionType.CallFunction:
instruction = new CallFunction();
break;
case InstructionType.Return:
instruction = new Return();
break;
case InstructionType.NewObject:
instruction = new NewObject();
break;
case InstructionType.InitArray:
instruction = new InitArray();
break;
case InstructionType.InitObject:
instruction = new InitObject();
break;
case InstructionType.TypeOf:
instruction = new InitObject();
break;
case InstructionType.Add2:
instruction = new Add2();
break;
case InstructionType.LessThan2:
instruction = new LessThan2();
break;
case InstructionType.Equals2:
instruction = new Equals2();
break;
case InstructionType.ToString:
instruction = new ToString();
break;
case InstructionType.PushDuplicate:
instruction = new PushDuplicate();
break;
case InstructionType.GetMember:
instruction = new GetMember();
break;
case InstructionType.SetMember:
instruction = new SetMember();
break;
case InstructionType.Increment:
instruction = new Increment();
break;
case InstructionType.Decrement:
instruction = new Decrement();
break;
case InstructionType.CallMethod:
instruction = new CallMethod();
break;
case InstructionType.Enumerate2:
instruction = new Enumerate2();
break;
case InstructionType.EA_PushThis:
instruction = new PushThis();
break;
case InstructionType.EA_PushZero:
instruction = new PushZero();
break;
case InstructionType.EA_PushOne:
instruction = new PushOne();
break;
case InstructionType.EA_CallFunc:
instruction = new CallFunc();
break;
case InstructionType.EA_CallMethodPop:
instruction = new CallMethodPop();
break;
case InstructionType.BitwiseXOr:
instruction = new BitwiseXOr();
break;
case InstructionType.Greater:
instruction = new Greater();
break;
case InstructionType.EA_PushThisVar:
instruction = new PushThisVar();
break;
case InstructionType.EA_PushGlobalVar:
instruction = new PushGlobalVar();
break;
case InstructionType.EA_ZeroVar:
instruction = new ZeroVar();
break;
case InstructionType.EA_PushTrue:
instruction = new PushTrue();
break;
case InstructionType.EA_PushFalse:
instruction = new PushFalse();
break;
case InstructionType.EA_PushNull:
instruction = new PushNull();
break;
case InstructionType.EA_PushUndefined:
instruction = new PushUndefined();
break;
case InstructionType.GotoFrame:
instruction = new GotoFrame();
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
break;
case InstructionType.GetURL:
instruction = new GetUrl();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.SetRegister:
instruction = new SetRegister();
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
break;
case InstructionType.ConstantPool:
{
instruction = new ConstantPool();
var count = _reader.ReadUInt32();
var constants = _reader.ReadFixedSizeArrayAtOffset <uint>(() => _reader.ReadUInt32(), count);
foreach (var constant in constants)
{
parameters.Add(Value.FromConstant(constant));
}
}
break;
case InstructionType.GotoLabel:
instruction = new GotoLabel();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.DefineFunction2:
{
instruction = new DefineFunction2();
var name = _reader.ReadStringAtOffset();
var nParams = _reader.ReadUInt32();
var nRegisters = _reader.ReadByte();
var flags = _reader.ReadUInt24();
//list of parameter strings
var paramList = _reader.ReadFixedSizeListAtOffset <FunctionArgument>(() => new FunctionArgument()
{
Register = _reader.ReadInt32(),
Parameter = _reader.ReadStringAtOffset(),
}, nParams);
parameters.Add(Value.FromString(name));
parameters.Add(Value.FromInteger((int)nParams));
parameters.Add(Value.FromInteger((int)nRegisters));
parameters.Add(Value.FromInteger((int)flags));
foreach (var param in paramList)
{
parameters.Add(Value.FromInteger(param.Register));
parameters.Add(Value.FromString(param.Parameter));
}
//body size of the function
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
//skip 8 bytes
_reader.ReadUInt64();
}
break;
case InstructionType.PushData:
{
instruction = new PushData();
var count = _reader.ReadUInt32();
var constants = _reader.ReadFixedSizeArrayAtOffset <uint>(() => _reader.ReadUInt32(), count);
foreach (var constant in constants)
{
parameters.Add(Value.FromConstant(constant));
}
}
break;
case InstructionType.BranchAlways:
instruction = new BranchAlways();
if (!branched)
{
branchBytes = _reader.ReadInt32();
parameters.Add(Value.FromInteger(branchBytes));
if (branchBytes > 0)
{
branchBytes += (int)instruction.Size + 1;
branched = true;
}
}
else
{
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
}
break;
case InstructionType.GetURL2:
instruction = new GetUrl2();
break;
case InstructionType.DefineFunction:
{
instruction = new DefineFunction();
var name = _reader.ReadStringAtOffset();
//list of parameter strings
var paramList = _reader.ReadListAtOffset <string>(() => _reader.ReadStringAtOffset());
parameters.Add(Value.FromString(name));
parameters.Add(Value.FromInteger(paramList.Count));
foreach (var param in paramList)
{
parameters.Add(Value.FromString(param));
}
//body size of the function
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
//skip 8 bytes
_reader.ReadUInt64();
}
break;
case InstructionType.BranchIfTrue:
instruction = new BranchIfTrue();
if (!branched)
{
branchBytes = _reader.ReadInt32();
parameters.Add(Value.FromInteger(branchBytes));
if (branchBytes > 0)
{
branchBytes += (int)instruction.Size + 1;
branched = true;
}
}
else
{
parameters.Add(Value.FromInteger(_reader.ReadInt32()));
}
break;
case InstructionType.GotoFrame2:
instruction = new GotoFrame2();
parameters.Add(Value.FromInteger(_reader.ReadByte()));
break;
case InstructionType.EA_PushString:
instruction = new PushString();
//the constant id that should be pushed
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.EA_PushConstantByte:
instruction = new PushConstantByte();
//the constant id that should be pushed
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_GetStringVar:
instruction = new GetStringVar();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.EA_SetStringVar:
instruction = new SetStringMember();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.EA_GetStringMember:
instruction = new GetStringMember();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.EA_SetStringMember:
instruction = new SetStringMember();
parameters.Add(Value.FromString(_reader.ReadStringAtOffset()));
break;
case InstructionType.EA_PushValueOfVar:
instruction = new PushValueOfVar();
//the constant id that should be pushed
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_GetNamedMember:
instruction = new GetNamedMember();
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_CallNamedFuncPop:
instruction = new CallNamedFuncPop();
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_CallNamedFunc:
instruction = new CallNamedFunc();
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_CallNamedMethodPop:
instruction = new CallNamedMethodPop();
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.EA_PushFloat:
instruction = new PushFloat();
parameters.Add(Value.FromFloat(_reader.ReadSingle()));
break;
case InstructionType.EA_PushByte:
instruction = new PushByte();
parameters.Add(Value.FromInteger(_reader.ReadByte()));
break;
case InstructionType.EA_PushShort:
instruction = new PushShort();
parameters.Add(Value.FromInteger(_reader.ReadUInt16()));
break;
case InstructionType.End:
instruction = new End();
if (!branched)
{
parsing = false;
}
break;
case InstructionType.EA_CallNamedMethod:
instruction = new CallNamedMethod();
parameters.Add(Value.FromConstant(_reader.ReadByte()));
break;
case InstructionType.Var:
instruction = new Var();
break;
default:
throw new InvalidDataException("Unimplemented bytecode instruction:" + type.ToString());
}
if (instruction != null)
{
instruction.Parameters = parameters;
Items.Add(instruction);
}
if (branched)
{
branchBytes -= (int)instruction.Size + 1;
if (branchBytes <= 0)
{
branched = false;
}
}
}
_reader.BaseStream.Seek(current, SeekOrigin.Begin);
}
public virtual void defineFunction2(DefineFunction action)
{
}
/// <summary> Walk the actions filling in the names of functions as we go.
/// This is done by looking for DefineFunction's actions and then
/// examining the content of the stack for a name.
///
/// </summary>
/// <param name="c">list of actions to be traversed
/// </param>
/// <param name="swfVersion">version of swf file that housed the ActionList (just use 7 if you don't know)
/// </param>
/// <param name="pool">optional; constant pool for the list of actions
/// </param>
/// <param name="className">optional; used to locate a constructor function (i.e if funcName == className)
/// </param>
/// <param name="profileOffsets">optional; is filled with offsets if a call to a
/// function named 'profile' is encountered. Can be null if caller is not
/// interested in obtaining this information.
/// </param>
public static void walkActions(ActionList c, int swfVersion, String[] pool, String className, System.Collections.IList profileOffsets)
{
// assumption: ActionContext c is always not null! try-catch-finally may be busted.
if (c == null)
{
return;
}
System.Collections.Stack evalStack = new System.Collections.Stack();
System.Collections.Hashtable variables = new System.Collections.Hashtable();
// loop again, this time, we register all the actions...
int offset;
Action a;
for (int i = 0; i < c.size(); i++)
{
offset = c.getOffset(i);
a = c.getAction(i);
switch (a.code)
{
// Flash 1 and 2 actions
case ActionConstants.sactionHasLength:
case ActionConstants.sactionNone:
case ActionConstants.sactionGotoFrame:
case ActionConstants.sactionGetURL:
case ActionConstants.sactionNextFrame:
case ActionConstants.sactionPrevFrame:
case ActionConstants.sactionPlay:
case ActionConstants.sactionStop:
case ActionConstants.sactionToggleQuality:
case ActionConstants.sactionStopSounds:
case ActionConstants.sactionWaitForFrame:
// Flash 3 Actions
case ActionConstants.sactionSetTarget:
case ActionConstants.sactionGotoLabel:
// no action
break;
// Flash 4 Actions
case ActionConstants.sactionAdd:
case ActionConstants.sactionSubtract:
case ActionConstants.sactionMultiply:
case ActionConstants.sactionDivide:
case ActionConstants.sactionEquals:
case ActionConstants.sactionLess:
case ActionConstants.sactionAnd:
case ActionConstants.sactionOr:
case ActionConstants.sactionStringEquals:
case ActionConstants.sactionStringAdd:
case ActionConstants.sactionStringLess:
case ActionConstants.sactionMBStringLength:
case ActionConstants.sactionGetProperty:
// pop, pop, push
pop(evalStack);
break;
case ActionConstants.sactionNot:
case ActionConstants.sactionStringLength:
case ActionConstants.sactionToInteger:
case ActionConstants.sactionCharToAscii:
case ActionConstants.sactionAsciiToChar:
case ActionConstants.sactionMBCharToAscii:
case ActionConstants.sactionMBAsciiToChar:
case ActionConstants.sactionRandomNumber:
// pop, push
break;
case ActionConstants.sactionGetVariable:
Object key = pop(evalStack);
if (variables[key] == null)
{
evalStack.Push(key);
}
else
{
evalStack.Push(variables[key]);
}
break;
case ActionConstants.sactionStringExtract:
case ActionConstants.sactionMBStringExtract:
// pop, pop, pop, push
pop(evalStack);
pop(evalStack);
break;
case ActionConstants.sactionPush:
Push p = (Push)a;
System.Object o = p.value;
int type = Push.getTypeCode(o);
switch (type)
{
case ActionConstants.kPushStringType:
evalStack.Push(o);
break;
case ActionConstants.kPushNullType:
evalStack.Push("null");
break;
case ActionConstants.kPushUndefinedType:
evalStack.Push("undefined");
break;
case ActionConstants.kPushRegisterType:
evalStack.Push(registers[(int)((SByte)o) & 0xFF]);
break;
case ActionConstants.kPushConstant8Type:
case ActionConstants.kPushConstant16Type:
evalStack.Push(pool[Convert.ToInt32(((ValueType)o)) & 0xFFFF]);
break;
case ActionConstants.kPushFloatType:
evalStack.Push(o + "F");
break;
case ActionConstants.kPushBooleanType:
case ActionConstants.kPushDoubleType:
case ActionConstants.kPushIntegerType:
evalStack.Push(o);
break;
default:
evalStack.Push("type" + type);
break;
}
break;
case ActionConstants.sactionIf:
pop(evalStack);
break;
case ActionConstants.sactionPop:
case ActionConstants.sactionCall:
case ActionConstants.sactionGotoFrame2:
case ActionConstants.sactionSetTarget2:
case ActionConstants.sactionRemoveSprite:
case ActionConstants.sactionWaitForFrame2:
case ActionConstants.sactionTrace:
// pop
pop(evalStack);
break;
case ActionConstants.sactionJump:
case ActionConstants.sactionEndDrag:
// no action
break;
case ActionConstants.sactionSetVariable:
key = pop(evalStack);
Object val = pop(evalStack);
variables[key] = val;
break;
case ActionConstants.sactionGetURL2:
// pop, pop
pop(evalStack);
pop(evalStack);
break;
case ActionConstants.sactionSetProperty:
case ActionConstants.sactionCloneSprite:
// pop, pop, pop
pop(evalStack);
pop(evalStack);
pop(evalStack);
break;
case ActionConstants.sactionStartDrag:
// pop, pop, pop, if the 3rd pop is non-zero, pop, pop, pop, pop
pop(evalStack);
pop(evalStack);
Object obj = pop(evalStack);
if (Int32.Parse(obj.ToString()) != 0)
{
pop(evalStack);
pop(evalStack);
pop(evalStack);
pop(evalStack);
}
break;
case ActionConstants.sactionGetTime:
// push
evalStack.Push(dummy);
break;
// Flash 5 actions
case ActionConstants.sactionDelete:
pop(evalStack);
break;
case ActionConstants.sactionDefineLocal:
// pop, pop
val = pop(evalStack);
key = pop(evalStack);
variables[key] = val;
break;
case ActionConstants.sactionDefineFunction:
case ActionConstants.sactionDefineFunction2:
DefineFunction f = (DefineFunction)a;
if (swfVersion > 6 && className != null)
{
if (f.name == null || f.name.Length == 0)
{
int depth = evalStack.Count;
if (depth != 0)
{
o = evalStack.Peek();
if (o == dummy)
{
f.name = "";
}
else if (o != null)
{
f.name = o.ToString();
}
}
evalStack.Push(dummy);
}
if (f.name == "null")
{
f.name = "";
}
if (f.name == null || f.name.Length == 0)
{
// do nothing... it's an anonymous function!
}
else if (!className.EndsWith(f.name))
{
f.name = className + "." + f.name;
}
else
{
f.name = className + ".[constructor]";
}
}
else
{
if (f.name == null || f.name.Length == 0)
{
System.Text.StringBuilder buffer = new System.Text.StringBuilder();
Boolean bFirst = true;
foreach (Object ob in evalStack)
{
if (ob == dummy)
{
break;
}
else if (bFirst)
{
buffer.Append(ob);
bFirst = false;
}
else
{
buffer.Insert(0, '.');
buffer.Insert(0, ob);
}
}
f.name = buffer.ToString();
if (f.name != null && f.name.IndexOf(".prototype.") == -1)
{
f.name = "";
}
evalStack.Push(dummy);
}
}
// evalActions(f.actions);
break;
case ActionConstants.sactionCallFunction:
Object function = pop(evalStack);
if (profileOffsets != null && "profile".Equals(function))
{
profileOffsets.Add((Int32)(offset - 13)); // Push 1
profileOffsets.Add((Int32)(offset - 5)); // Push 'profile'
profileOffsets.Add((Int32)offset); // CallFunction
profileOffsets.Add((Int32)(offset + 1)); // Pop
}
int n = Convert.ToInt32(((System.ValueType)pop(evalStack)));
for (int k = 0; k < n; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionReturn:
// return function() { ... } doesn't push...
pop(evalStack);
break;
case ActionConstants.sactionModulo:
// pop, push
break;
case ActionConstants.sactionNewObject:
pop(evalStack);
int num = Convert.ToInt32(((ValueType)pop(evalStack)));
for (int k = 0; k < num; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionDefineLocal2:
case ActionConstants.sactionDelete2:
case ActionConstants.sactionAdd2:
case ActionConstants.sactionLess2:
// pop
pop(evalStack);
break;
case ActionConstants.sactionInitArray:
// pop, if the first pop is non-zero, keep popping
num = Convert.ToInt32(((ValueType)pop(evalStack)));
for (int k = 0; k < num; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionInitObject:
num = Convert.ToInt32(((ValueType)pop(evalStack))) * 2;
for (int k = 0; k < num; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionTargetPath:
case ActionConstants.sactionEnumerate:
case ActionConstants.sactionToNumber:
case ActionConstants.sactionToString:
case ActionConstants.sactionTypeOf:
// no action
break;
case ActionConstants.sactionStoreRegister:
StoreRegister r = (StoreRegister)a;
registers[r.register] = evalStack.Peek();
break;
case ActionConstants.sactionEquals2:
// pop, pop, push
// if (evalStack.size() >= 2)
{
pop(evalStack);
}
break;
case ActionConstants.sactionPushDuplicate:
evalStack.Push(dummy);
break;
case ActionConstants.sactionStackSwap:
// pop, pop, push, push
break;
case ActionConstants.sactionGetMember:
// pop, pop, concat, push
Object o1 = pop(evalStack);
Object o2 = pop(evalStack);
if (pool != null)
{
try
{
evalStack.Push(pool[Int32.Parse(o2.ToString())] + "." + pool[Int32.Parse(o1.ToString())]);
}
catch (Exception)
{
if (o1 == dummy || o2 == dummy)
{
evalStack.Push(dummy);
}
else
{
evalStack.Push(o2 + "." + o1);
}
}
}
else
{
evalStack.Push(o2 + "." + o1);
}
break;
case ActionConstants.sactionSetMember:
// pop, pop, pop
pop(evalStack);
pop(evalStack);
pop(evalStack);
break;
case ActionConstants.sactionIncrement:
case ActionConstants.sactionDecrement:
break;
case ActionConstants.sactionCallMethod:
pop(evalStack);
pop(evalStack);
Object obj2 = pop(evalStack);
if (obj2 is String)
{
try
{
n = Int32.Parse((String)obj2);
}
catch (FormatException)
{
n = 1;
}
}
else
{
n = Convert.ToInt32(((ValueType)obj2));
}
for (int k = 0; k < n; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionNewMethod:
/*Object meth =*/ pop(evalStack);
/*Object cls =*/ pop(evalStack);
num = Convert.ToInt32(((ValueType)pop(evalStack)));
for (int k = 0; k < num; k++)
{
pop(evalStack);
}
evalStack.Push(dummy);
break;
case ActionConstants.sactionWith:
// pop
pop(evalStack);
break;
case ActionConstants.sactionConstantPool:
pool = ((ConstantPool)a).pool;
// no action
break;
case ActionConstants.sactionStrictMode:
break;
case ActionConstants.sactionBitAnd:
case ActionConstants.sactionBitOr:
case ActionConstants.sactionBitLShift:
// pop, push
break;
case ActionConstants.sactionBitXor:
case ActionConstants.sactionBitRShift:
case ActionConstants.sactionBitURShift:
pop(evalStack);
break;
// Flash 6 actions
case ActionConstants.sactionInstanceOf:
pop(evalStack);
break;
case ActionConstants.sactionEnumerate2:
// pop, push, more pushes?
break;
case ActionConstants.sactionStrictEquals:
case ActionConstants.sactionGreater:
case ActionConstants.sactionStringGreater:
pop(evalStack);
break;
// FEATURE_EXCEPTIONS
case ActionConstants.sactionTry:
// do nothing
break;
case ActionConstants.sactionThrow:
pop(evalStack);
break;
// FEATURE_AS2_INTERFACES
case ActionConstants.sactionCastOp:
break;
case ActionConstants.sactionImplementsOp:
break;
// Reserved for Quicktime
case ActionConstants.sactionQuickTime:
break;
default:
break;
}
}
}
private void collectActions(ActionList c)
{
// assumption: ActionContext c is always not null! try-catch-finally may be busted.
if (c == null)
{
return;
}
// interprets the actions. try to assign names to anonymous functions...
evalActions(c);
DebugModule d = findDebugModule(c);
String emptyMethodName = null;
// loop again, this time, we register all the actions...
for (int i = 0; i < c.size(); i++)
{
int ioffset = c.getOffset(i);
Action a = c.getAction(i);
if (emptyMethodName != null && emptyMethodName.Length != 0)
{
functionNames.put(ioffset, emptyMethodName);
emptyMethodName = null;
}
if (a.code == ActionList.sactionLineRecord)
{
LineRecord line = (LineRecord)a;
if (line.module != null)
{
d = line.module;
if (d.name.EndsWith(".mxml"))
{
mxml[d.name] = d;
}
}
continue;
}
if (a.code >= 256)
{
// something synthetic we don't care about
continue;
}
actions.put(ioffset, (Object)codes[a.code]);
modules.put(ioffset, d);
switch (a.code)
{
case ActionConstants.sactionDefineFunction:
case ActionConstants.sactionDefineFunction2:
DefineFunction f = (DefineFunction)a;
Int32 size = (Int32)f.codeSize;
if (f.actionList.size() == 0)
{
emptyMethodName = f.name;
}
else
{
Int32 lineno = -1;
// map all the offsets in this function to the function name
for (int j = 0; j < f.actionList.size(); j++)
{
int o = f.actionList.getOffset(j);
Action child = f.actionList.getAction(j);
if (child.code == ActionList.sactionLineRecord)
{
if (lineno == -1)
{
lineno = (Int32)((LineRecord)child).lineno;
}
preciseLines.put(o, (Object)((LineRecord)child).lineno);
}
functionNames.put(o, f.name);
functionSizes.put(o, (Object)size);
}
// map all the offsets in this function to the first line number of this function.
for (int j = 0; j < f.actionList.size(); j++)
{
int o = f.actionList.getOffset(j);
functionLines.put(o, (Object)lineno);
}
}
collectActions(f.actionList);
break;
}
}
}
