public static byte[] Unzip(byte[] buffer)
{
Assembly callingAssembly = Assembly.GetCallingAssembly();
Assembly executingAssembly = Assembly.GetExecutingAssembly();
if ((callingAssembly != executingAssembly) && !PublicKeysMatch(executingAssembly, callingAssembly))
{
return null;
}
ZipStream stream = new ZipStream(buffer);
byte[] buf = new byte[0];
int num = stream.ReadInt();
if (num == 0x4034b50)
{
short num2 = (short) stream.ReadShort();
int num3 = stream.ReadShort();
int num4 = stream.ReadShort();
if (((num != 0x4034b50) || (num2 != 20)) || ((num3 != 0) || (num4 != 8)))
{
throw new FormatException("Wrong Header Signature");
}
stream.ReadInt();
stream.ReadInt();
stream.ReadInt();
int num5 = stream.ReadInt();
int count = stream.ReadShort();
int num7 = stream.ReadShort();
if (count > 0)
{
byte[] buffer3 = new byte[count];
stream.Read(buffer3, 0, count);
}
if (num7 > 0)
{
byte[] buffer4 = new byte[num7];
stream.Read(buffer4, 0, num7);
}
byte[] buffer5 = new byte[stream.Length - stream.Position];
stream.Read(buffer5, 0, buffer5.Length);
Inflater inflater = new Inflater(buffer5);
buf = new byte[num5];
inflater.Inflate(buf, 0, buf.Length);
buffer5 = null;
}
else
{
int num8 = num >> 0x18;
num -= num8 << 0x18;
if (num == 0x7d7a7b)
{
switch (num8)
{
case 1:
{
int num12;
int num9 = stream.ReadInt();
buf = new byte[num9];
for (int i = 0; i < num9; i += num12)
{
int num11 = stream.ReadInt();
num12 = stream.ReadInt();
byte[] buffer6 = new byte[num11];
stream.Read(buffer6, 0, buffer6.Length);
new Inflater(buffer6).Inflate(buf, i, num12);
}
break;
}
case 2:
{
byte[] buffer7 = new byte[] { 0x94, 0xad, 0xc3, 0x85, 0xa5, 0x2a, 0xbd, 9 };
byte[] buffer8 = new byte[] { 0xbf, 0x45, 3, 0x1a, 0x41, 80, 14, 0xbf };
using (ICryptoTransform transform = GetDesTransform(buffer7, buffer8, true))
{
buf = Unzip(transform.TransformFinalBlock(buffer, 4, buffer.Length - 4));
}
break;
}
}
if (num8 != 3)
{
goto Label_026B;
}
byte[] key = new byte[] { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
byte[] iv = new byte[] { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 };
using (ICryptoTransform transform2 = GetAesTransform(key, iv, true))
{
buf = Unzip(transform2.TransformFinalBlock(buffer, 4, buffer.Length - 4));
goto Label_026B;
}
}
throw new FormatException("Unknown Header");
}
Label_026B:
stream.Close();
stream = null;
return buf;
}
private static byte[] Zip(byte[] buffer, int version, byte[] key, byte[] iv)
{
byte[] buffer12;
try
{
ZipStream stream = new ZipStream();
if (version == 0)
{
Deflater deflater = new Deflater();
DateTime now = DateTime.Now;
long num = (long) ((ulong) ((((((((now.Year - 0x7bc) & 0x7f) << 0x19) | (now.Month << 0x15)) | (now.Day << 0x10)) | (now.Hour << 11)) | (now.Minute << 5)) | (now.Second >> 1)));
uint[] numArray = new uint[] {
0, 0x77073096, 0xee0e612c, 0x990951ba, 0x76dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0xedb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x9b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x1db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x6b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0xf00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x86d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x3b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x4db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0xd6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0xa00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x26d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x5005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0xcb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0xbdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
uint maxValue = uint.MaxValue;
uint num3 = maxValue;
int num4 = 0;
int length = buffer.Length;
while (--length >= 0)
{
num3 = numArray[(int) ((IntPtr) ((num3 ^ buffer[num4++]) & 0xff))] ^ (num3 >> 8);
}
num3 ^= maxValue;
stream.WriteInt(0x4034b50);
stream.WriteShort(20);
stream.WriteShort(0);
stream.WriteShort(8);
stream.WriteInt((int) num);
stream.WriteInt((int) num3);
long position = stream.Position;
stream.WriteInt(0);
stream.WriteInt(buffer.Length);
byte[] bytes = Encoding.UTF8.GetBytes("{data}");
stream.WriteShort(bytes.Length);
stream.WriteShort(0);
stream.Write(bytes, 0, bytes.Length);
deflater.SetInput(buffer);
while (!deflater.IsNeedingInput)
{
byte[] output = new byte[0x200];
int count = deflater.Deflate(output);
if (count <= 0)
{
break;
}
stream.Write(output, 0, count);
}
deflater.Finish();
while (!deflater.IsFinished)
{
byte[] buffer4 = new byte[0x200];
int num8 = deflater.Deflate(buffer4);
if (num8 <= 0)
{
break;
}
stream.Write(buffer4, 0, num8);
}
long totalOut = deflater.TotalOut;
stream.WriteInt(0x2014b50);
stream.WriteShort(20);
stream.WriteShort(20);
stream.WriteShort(0);
stream.WriteShort(8);
stream.WriteInt((int) num);
stream.WriteInt((int) num3);
stream.WriteInt((int) totalOut);
stream.WriteInt(buffer.Length);
stream.WriteShort(bytes.Length);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteInt(0);
stream.WriteInt(0);
stream.Write(bytes, 0, bytes.Length);
stream.WriteInt(0x6054b50);
stream.WriteShort(0);
stream.WriteShort(0);
stream.WriteShort(1);
stream.WriteShort(1);
stream.WriteInt(0x2e + bytes.Length);
stream.WriteInt((30 + bytes.Length) + ((int) totalOut));
stream.WriteShort(0);
stream.Seek(position, SeekOrigin.Begin);
stream.WriteInt((int) totalOut);
}
else if (version == 1)
{
byte[] buffer5;
stream.WriteInt(0x17d7a7b);
stream.WriteInt(buffer.Length);
for (int i = 0; i < buffer.Length; i += buffer5.Length)
{
buffer5 = new byte[Math.Min(0x1fffff, buffer.Length - i)];
Buffer.BlockCopy(buffer, i, buffer5, 0, buffer5.Length);
long num11 = stream.Position;
stream.WriteInt(0);
stream.WriteInt(buffer5.Length);
Deflater deflater2 = new Deflater();
deflater2.SetInput(buffer5);
while (!deflater2.IsNeedingInput)
{
byte[] buffer6 = new byte[0x200];
int num12 = deflater2.Deflate(buffer6);
if (num12 <= 0)
{
break;
}
stream.Write(buffer6, 0, num12);
}
deflater2.Finish();
while (!deflater2.IsFinished)
{
byte[] buffer7 = new byte[0x200];
int num13 = deflater2.Deflate(buffer7);
if (num13 <= 0)
{
break;
}
stream.Write(buffer7, 0, num13);
}
long num14 = stream.Position;
stream.Position = num11;
stream.WriteInt((int) deflater2.TotalOut);
stream.Position = num14;
}
}
else
{
if (version == 2)
{
stream.WriteInt(0x27d7a7b);
byte[] inputBuffer = Zip(buffer, 1, null, null);
using (ICryptoTransform transform = GetDesTransform(key, iv, false))
{
byte[] buffer9 = transform.TransformFinalBlock(inputBuffer, 0, inputBuffer.Length);
stream.Write(buffer9, 0, buffer9.Length);
goto Label_044F;
}
}
if (version == 3)
{
stream.WriteInt(0x37d7a7b);
byte[] buffer10 = Zip(buffer, 1, null, null);
using (ICryptoTransform transform2 = GetAesTransform(key, iv, false))
{
byte[] buffer11 = transform2.TransformFinalBlock(buffer10, 0, buffer10.Length);
stream.Write(buffer11, 0, buffer11.Length);
}
}
}
Label_044F:
stream.Flush();
stream.Close();
buffer12 = stream.ToArray();
}
catch (Exception exception)
{
ExceptionMessage = "ERR 2003: " + exception.Message;
throw;
}
return buffer12;
}