public bool DisableExpirationDateCheck()
{
ABCFile abc = _abcFiles[2];
ASInstance windowContext = abc.FindInstanceByName("WindowContext");
if (windowContext == null) return false;
ASCode methodCode = windowContext.Constructor.Body.Code;
using (var inCode = new FlashReader(methodCode.ToArray()))
using (var outCode = new FlashWriter(methodCode.Count))
{
int setLocal11Itterations = 0;
while (inCode.Position != inCode.Length)
{
OPCode op = inCode.ReadOP();
outCode.WriteOP(op);
if (op != OPCode.SetLocal) continue;
int setLocalIndex = inCode.Read7BitEncodedInt();
outCode.Write7BitEncodedInt(setLocalIndex);
if (setLocalIndex != 11 || (++setLocal11Itterations != 2)) continue;
outCode.WriteOP(OPCode.ReturnVoid);
outCode.Write(inCode.ToArray(), inCode.Position,
inCode.Length - inCode.Position);
methodCode.Clear();
methodCode.AddRange(outCode.ToArray());
return true;
}
}
return false;
}
public bool ReplaceRSA(int exponent, string modulus)
{
ABCFile abc = _abcFiles[_abcFiles.Count - 1];
int modulusIndex = abc.Constants.Strings.IndexOf(modulus);
if (modulusIndex == -1)
{
abc.Constants.Strings.Add(modulus);
modulusIndex = (abc.Constants.Strings.Count - 1);
}
string e = exponent.ToString("x");
int exponentIndex = abc.Constants.Strings.IndexOf(e);
if (exponentIndex == -1)
{
abc.Constants.Strings.Add(e);
exponentIndex = (abc.Constants.Strings.Count - 1);
}
int rsaStart = 0;
ASInstance commClass = abc.FindInstanceByName("HabboCommunicationDemo");
ASMethod verifier = FindVerifyMethod(commClass, abc, out rsaStart);
ASCode verifierCode = verifier.Body.Code;
using (var inCode = new FlashReader(verifierCode.ToArray()))
using (var outCode = new FlashWriter(inCode.Length))
{
bool searchingKeys = true;
inCode.Position = rsaStart;
outCode.Write(inCode.ToArray(), 0, rsaStart);
while (inCode.Position != inCode.Length)
{
byte codeByte = inCode.ReadByte();
outCode.Write(codeByte);
if (!searchingKeys)
{
outCode.Write(inCode.ToArray(),
inCode.Position, inCode.Length - inCode.Position);
break;
}
switch ((OPCode)codeByte)
{
case OPCode.GetLex:
{
outCode.Position--;
outCode.WriteOP(OPCode.PushString);
int typeIndex = inCode.Read7BitEncodedInt();
ASMultiname type = abc.Constants.Multinames[typeIndex];
inCode.ReadOP();
inCode.Read7BitEncodedInt();
inCode.Read7BitEncodedInt();
if (modulusIndex > 0)
{
outCode.Write7BitEncodedInt(modulusIndex);
modulusIndex = -1;
}
else if (searchingKeys)
{
outCode.Write7BitEncodedInt(exponentIndex);
searchingKeys = false;
}
break;
}
case OPCode.PushString:
{
int stringIndex = inCode.Read7BitEncodedInt();
string value = abc.Constants.Strings[stringIndex];
if (string.IsNullOrWhiteSpace(Modulus))
{
Modulus = value;
outCode.Write7BitEncodedInt(modulusIndex);
}
else if (string.IsNullOrWhiteSpace(Exponent))
{
Exponent = value;
outCode.Write7BitEncodedInt(exponentIndex);
searchingKeys = false;
}
break;
}
default: continue;
}
}
verifierCode.Clear();
verifierCode.AddRange(outCode.ToArray());
if (!searchingKeys) return true;
}
return false;
}
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;
ASCode initCode = initComponent.Body.Code;
using (var inCode = new FlashReader(initCode.ToArray()))
using (var outCode = new FlashWriter(inCode.Length))
{
int hostSlotIndex = abc.Constants.FindMultinameIndex(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
.FindMultinameIndex("getProperty");
outCode.WriteOP(OPCode.GetLocal_0);
outCode.WriteOP(OPCode.FindPropStrict);
outCode.Write7BitEncodedInt(getPropertyNameIndex);
outCode.WriteOP(OPCode.PushString);
outCode.Write7BitEncodedInt(abc.Constants.PushString("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);
initCode.Clear();
initCode.AddRange(outCode.ToArray());
return true;
}
}
return false;
}
