protected ASMethod FindVerifyMethod(ASInstance instance, ABCFile abc, out int rsaStart)
{
List <MethodGetterSetterTrait> methodTraits =
instance.FindTraits <MethodGetterSetterTrait>(TraitType.Method);
rsaStart = -1;
foreach (MethodGetterSetterTrait mgsTrait in methodTraits)
{
ASMethod method = mgsTrait.Method;
if (method.ReturnType.ObjName != "void")
{
continue;
}
if (method.Parameters.Count != 1)
{
continue;
}
using (var code = new FlashReader(method.Body.Bytecode))
{
while (code.Position != code.Length)
{
OPCode op = code.ReadOP();
if (op != OPCode.GetLex)
{
continue;
}
int typeIndex = code.Read7BitEncodedInt();
ASMultiname type = abc.Constants.Multinames[typeIndex];
if (type?.ObjName == "RSAKey")
{
rsaStart = code.Position;
return(method);
}
}
}
}
return(null);
}
public bool BypassRemoteHostCheck()
{
ABCFile abc = ABCFiles[2];
ASInstance commManager = abc.FindInstanceByName("HabboCommunicationManager");
if (commManager == null)
{
return(false);
}
// The "host" value is always the first slot, for now.
string hostValueSlotName = commManager.FindTraits <SlotConstantTrait>(TraitType.Slot)
.Where(t => t.Type.ObjName == "String").ToArray()[0].ObjName;
ASMethod initComponent = commManager.FindMethod("initComponent", "void").Method;
if (initComponent == null)
{
return(false);
}
using (var inCode = new FlashReader(initComponent.Body.Bytecode))
using (var outCode = new FlashWriter(inCode.Length))
{
int hostSlotIndex = abc.Constants.IndexOfMultiname(hostValueSlotName);
while (inCode.Position != inCode.Length)
{
OPCode op = inCode.ReadOP();
outCode.WriteOP(op);
if (op != OPCode.GetLocal_0)
{
continue;
}
op = inCode.ReadOP();
outCode.WriteOP(op);
if (op != OPCode.CallPropVoid)
{
continue;
}
int callPropVoidIndex = inCode.Read7BitEncodedInt();
outCode.Write7BitEncodedInt(callPropVoidIndex);
int callPropVoidArgCount = inCode.Read7BitEncodedInt();
outCode.Write7BitEncodedInt(callPropVoidArgCount);
if (callPropVoidArgCount != 0)
{
continue;
}
int getPropertyNameIndex = abc.Constants
.IndexOfMultiname("getProperty");
outCode.WriteOP(OPCode.GetLocal_0);
outCode.WriteOP(OPCode.FindPropStrict);
outCode.Write7BitEncodedInt(getPropertyNameIndex);
outCode.WriteOP(OPCode.PushString);
outCode.Write7BitEncodedInt(abc.Constants.AddString("connection.info.host"));
outCode.WriteOP(OPCode.CallProperty);
outCode.Write7BitEncodedInt(getPropertyNameIndex);
outCode.Write7BitEncodedInt(1);
outCode.WriteOP(OPCode.InitProperty);
outCode.Write7BitEncodedInt(hostSlotIndex);
outCode.Write(inCode.ToArray(),
inCode.Position, inCode.Length - inCode.Position);
do
{
op = inCode.ReadOP();
}while (op != OPCode.CallPropVoid);
callPropVoidIndex = inCode.Read7BitEncodedInt();
ASMultiname callPropVoidName = abc.Constants.Multinames[callPropVoidIndex];
ASMethod connectMethod = commManager.FindMethod(callPropVoidName.ObjName, "void").Method;
RemoveHostSuffix(abc, connectMethod);
initComponent.Body.Bytecode = outCode.ToArray();
return(true);
}
}
return(false);
}
