internal static byte[] smethod_2(Stream stream_0)
{
byte[] result;
lock (Class23.object_0)
{
result = Class23.smethod_4(97L, stream_0);
}
return(result);
}
internal static byte[] smethod_3(long long_0, Stream stream_0)
{
byte[] result;
try
{
result = Class23.smethod_2(stream_0);
}
catch (HostProtectionException)
{
result = Class23.smethod_4(97L, stream_0);
}
return(result);
}
internal static byte[] smethod_4(long long_0, Stream stream_0)
{
Stream stream = stream_0;
MemoryStream memoryStream = null;
ushort num = (ushort)stream_0.ReadByte();
num = ~num;
for (int i = 1; i < 3; i++)
{
stream_0.ReadByte();
}
if ((num & 2) != 0)
{
DESCryptoServiceProvider dESCryptoServiceProvider = new DESCryptoServiceProvider();
byte[] array = new byte[8];
stream_0.Read(array, 0, 8);
dESCryptoServiceProvider.IV = array;
byte[] array2 = new byte[8];
stream_0.Read(array2, 0, 8);
bool flag = true;
byte[] array3 = array2;
for (int j = 0; j < array3.Length; j++)
{
if (array3[j] != 0)
{
flag = false;
IL_8B:
if (flag)
{
array2 = Class23.smethod_1(Assembly.GetExecutingAssembly());
}
dESCryptoServiceProvider.Key = array2;
if (Class23.memoryStream_0 == null)
{
if (Class23.int_0 == 2147483647)
{
Class23.memoryStream_0.Capacity = (int)stream_0.Length;
}
else
{
Class23.memoryStream_0.Capacity = Class23.int_0;
}
}
Class23.memoryStream_0.Position = 0L;
ICryptoTransform cryptoTransform = dESCryptoServiceProvider.CreateDecryptor();
int inputBlockSize = cryptoTransform.InputBlockSize;
int arg_105_0 = cryptoTransform.OutputBlockSize;
byte[] array4 = new byte[cryptoTransform.OutputBlockSize];
byte[] array5 = new byte[cryptoTransform.InputBlockSize];
int num2 = (int)stream_0.Position;
while ((long)(num2 + inputBlockSize) < stream_0.Length)
{
stream_0.Read(array5, 0, inputBlockSize);
int count = cryptoTransform.TransformBlock(array5, 0, inputBlockSize, array4, 0);
Class23.memoryStream_0.Write(array4, 0, count);
num2 += inputBlockSize;
}
stream_0.Read(array5, 0, (int)(stream_0.Length - (long)num2));
byte[] array6 = cryptoTransform.TransformFinalBlock(array5, 0, (int)(stream_0.Length - (long)num2));
Class23.memoryStream_0.Write(array6, 0, array6.Length);
stream = Class23.memoryStream_0;
stream.Position = 0L;
memoryStream = Class23.memoryStream_0;
goto IL_1C6;
}
}
goto IL_8B;
}
IL_1C6:
if ((num & 8) != 0)
{
try
{
if (Class23.memoryStream_1 == null)
{
if (Class23.int_1 == -2147483648)
{
Class23.memoryStream_1.Capacity = (int)stream.Length * 2;
}
else
{
Class23.memoryStream_1.Capacity = Class23.int_1;
}
}
Class23.memoryStream_1.Position = 0L;
DeflateStream deflateStream = new DeflateStream(stream, CompressionMode.Decompress);
int num3 = 1000;
byte[] buffer = new byte[1000];
int num4;
do
{
num4 = deflateStream.Read(buffer, 0, num3);
if (num4 > 0)
{
Class23.memoryStream_1.Write(buffer, 0, num4);
}
}while (num4 >= num3);
memoryStream = Class23.memoryStream_1;
}
catch (Exception)
{
}
}
if (memoryStream != null)
{
return(memoryStream.ToArray());
}
byte[] array7 = new byte[stream_0.Length - stream_0.Position];
stream_0.Read(array7, 0, array7.Length);
return(array7);
}