451 lines
13 KiB
C#
451 lines
13 KiB
C#
// <copyright file="PacketTwisterOfGuildInfo.cs" company="MUnique">
|
|
// Licensed under the MIT License. See LICENSE file in the project root for full license information.
|
|
// </copyright>
|
|
|
|
namespace MUnique.OpenMU.Network.PacketTwister;
|
|
|
|
/// <summary>
|
|
/// PacketTwister implementation for packets of 'GuildInfo' type.
|
|
/// </summary>
|
|
internal class PacketTwisterOfGuildInfo : IPacketTwister
|
|
{
|
|
/// <inheritdoc/>
|
|
public void Twist(Span<byte> data)
|
|
{
|
|
if (data.Length >= 4)
|
|
{
|
|
if (data.Length >= 8)
|
|
{
|
|
if (data.Length >= 16)
|
|
{
|
|
if (data.Length >= 32)
|
|
{
|
|
var v10 = data[27];
|
|
data[27] = data[7];
|
|
data[7] = v10;
|
|
var v11 = (byte)(data[31] >> 6);
|
|
data[31] *= 4;
|
|
data[31] |= v11;
|
|
var v12 = (byte)(data[0] >> 4);
|
|
data[0] *= 16;
|
|
data[0] |= v12;
|
|
data[29] ^= 0x39;
|
|
data[13] ^= 0xCA;
|
|
var v13 = data[9];
|
|
data[9] = data[17];
|
|
data[17] = v13;
|
|
data[10] ^= 0xC2;
|
|
var v14 = data[6];
|
|
data[6] = data[11];
|
|
data[11] = v14;
|
|
}
|
|
else
|
|
{
|
|
var v17 = (byte)((data[2] >> 3) & 1);
|
|
if (((data[2] >> 6) & 1) != 0)
|
|
{
|
|
data[2] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xF7;
|
|
}
|
|
|
|
if (v17 != 0)
|
|
{
|
|
data[2] |= 0x40;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xBF;
|
|
}
|
|
|
|
var v16 = (byte)((data[11] >> 2) & 1);
|
|
if (((data[11] >> 7) & 1) != 0)
|
|
{
|
|
data[11] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[11] &= 0xFB;
|
|
}
|
|
|
|
if (v16 != 0)
|
|
{
|
|
data[11] |= 0x80;
|
|
}
|
|
else
|
|
{
|
|
data[11] &= 0x7F;
|
|
}
|
|
|
|
data[12] ^= 0x2A;
|
|
var v6 = data[6];
|
|
data[6] = data[3];
|
|
data[3] = v6;
|
|
var v7 = (byte)(data[7] >> 5);
|
|
data[7] *= 8;
|
|
data[7] |= v7;
|
|
var v8 = data[9];
|
|
data[9] = data[10];
|
|
data[10] = v8;
|
|
var v15 = (byte)((data[10] >> 3) & 1);
|
|
if (((data[10] >> 4) & 1) != 0)
|
|
{
|
|
data[10] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[10] &= 0xF7;
|
|
}
|
|
|
|
if (v15 != 0)
|
|
{
|
|
data[10] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[10] &= 0xEF;
|
|
}
|
|
|
|
var v9 = (byte)(data[9] >> 5);
|
|
data[9] *= 8;
|
|
data[9] |= v9;
|
|
data[11] ^= 0xA0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data[5] ^= 0x35;
|
|
var v20 = (byte)((data[1] >> 1) & 1);
|
|
if (((data[1] >> 4) & 1) != 0)
|
|
{
|
|
data[1] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[1] &= 0xFD;
|
|
}
|
|
|
|
if (v20 != 0)
|
|
{
|
|
data[1] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[1] &= 0xEF;
|
|
}
|
|
|
|
var v19 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 1) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v19 != 0)
|
|
{
|
|
data[3] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFD;
|
|
}
|
|
|
|
var v3 = (byte)(data[2] >> 6);
|
|
data[2] *= 4;
|
|
data[2] |= v3;
|
|
data[7] ^= 0x95;
|
|
var v4 = (byte)(data[6] >> 1);
|
|
data[6] <<= 7;
|
|
data[6] |= v4;
|
|
var v5 = data[1];
|
|
data[1] = data[6];
|
|
data[6] = v5;
|
|
var v18 = (byte)((data[3] >> 4) & 1);
|
|
if (((data[3] >> 1) & 1) != 0)
|
|
{
|
|
data[3] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xEF;
|
|
}
|
|
|
|
if (v18 != 0)
|
|
{
|
|
data[3] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFD;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v2 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 2) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v2 != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
data[3] ^= 0x7F;
|
|
var v21 = (byte)((data[2] >> 5) & 1);
|
|
if (((data[2] >> 4) & 1) != 0)
|
|
{
|
|
data[2] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xDF;
|
|
}
|
|
|
|
if (v21 != 0)
|
|
{
|
|
data[2] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xEF;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc/>
|
|
public void Correct(Span<byte> data)
|
|
{
|
|
if (data.Length >= 4)
|
|
{
|
|
if (data.Length >= 8)
|
|
{
|
|
if (data.Length >= 16)
|
|
{
|
|
if (data.Length >= 32)
|
|
{
|
|
var v10 = data[6];
|
|
data[6] = data[11];
|
|
data[11] = v10;
|
|
data[10] ^= 0xC2;
|
|
var v11 = data[9];
|
|
data[9] = data[17];
|
|
data[17] = v11;
|
|
data[13] ^= 0xCA;
|
|
data[29] ^= 0x39;
|
|
var v12 = (byte)(data[0] >> 4);
|
|
data[0] *= 16;
|
|
data[0] |= v12;
|
|
var v13 = (byte)(data[31] >> 2);
|
|
data[31] <<= 6;
|
|
data[31] |= v13;
|
|
var v14 = data[27];
|
|
data[27] = data[7];
|
|
data[7] = v14;
|
|
}
|
|
else
|
|
{
|
|
data[11] ^= 0xA0;
|
|
var v6 = (byte)(data[9] >> 3);
|
|
data[9] *= 32;
|
|
data[9] |= v6;
|
|
var v17 = (byte)((data[10] >> 3) & 1);
|
|
if (((data[10] >> 4) & 1) != 0)
|
|
{
|
|
data[10] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[10] &= 0xF7;
|
|
}
|
|
|
|
if (v17 != 0)
|
|
{
|
|
data[10] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[10] &= 0xEF;
|
|
}
|
|
|
|
var v7 = data[9];
|
|
data[9] = data[10];
|
|
data[10] = v7;
|
|
var v8 = (byte)(data[7] >> 3);
|
|
data[7] *= 32;
|
|
data[7] |= v8;
|
|
var v9 = data[6];
|
|
data[6] = data[3];
|
|
data[3] = v9;
|
|
data[12] ^= 0x2A;
|
|
var v16 = (byte)((data[11] >> 2) & 1);
|
|
if (((data[11] >> 7) & 1) != 0)
|
|
{
|
|
data[11] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[11] &= 0xFB;
|
|
}
|
|
|
|
if (v16 != 0)
|
|
{
|
|
data[11] |= 0x80;
|
|
}
|
|
else
|
|
{
|
|
data[11] &= 0x7F;
|
|
}
|
|
|
|
var v15 = (byte)((data[2] >> 3) & 1);
|
|
if (((data[2] >> 6) & 1) != 0)
|
|
{
|
|
data[2] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xF7;
|
|
}
|
|
|
|
if (v15 != 0)
|
|
{
|
|
data[2] |= 0x40;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xBF;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v20 = (byte)((data[3] >> 4) & 1);
|
|
if (((data[3] >> 1) & 1) != 0)
|
|
{
|
|
data[3] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xEF;
|
|
}
|
|
|
|
if (v20 != 0)
|
|
{
|
|
data[3] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFD;
|
|
}
|
|
|
|
var v3 = data[1];
|
|
data[1] = data[6];
|
|
data[6] = v3;
|
|
var v4 = (byte)(data[6] >> 7);
|
|
data[6] *= 2;
|
|
data[6] |= v4;
|
|
data[7] ^= 0x95;
|
|
var v5 = (byte)(data[2] >> 2);
|
|
data[2] <<= 6;
|
|
data[2] |= v5;
|
|
var v19 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 1) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v19 != 0)
|
|
{
|
|
data[3] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFD;
|
|
}
|
|
|
|
var v18 = (byte)((data[1] >> 1) & 1);
|
|
if (((data[1] >> 4) & 1) != 0)
|
|
{
|
|
data[1] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[1] &= 0xFD;
|
|
}
|
|
|
|
if (v18 != 0)
|
|
{
|
|
data[1] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[1] &= 0xEF;
|
|
}
|
|
|
|
data[5] ^= 0x35;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v2 = (byte)((data[2] >> 5) & 1);
|
|
if (((data[2] >> 4) & 1) != 0)
|
|
{
|
|
data[2] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xDF;
|
|
}
|
|
|
|
if (v2 != 0)
|
|
{
|
|
data[2] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[2] &= 0xEF;
|
|
}
|
|
|
|
data[3] ^= 0x7F;
|
|
var v21 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 2) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v21 != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} |