488 lines
16 KiB
C#
488 lines
16 KiB
C#
// <copyright file="PacketTwisterOfPersonalShop.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 'PersonalShop' type.
|
|
/// </summary>
|
|
internal class PacketTwisterOfPersonalShop : 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 v14 = (byte)(data[31] >> 6);
|
|
data[31] *= 4;
|
|
data[31] |= v14;
|
|
var v25 = (byte)((data[0] >> 2) & 1);
|
|
if (((data[0] >> 3) & 1) != 0)
|
|
{
|
|
data[0] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFB;
|
|
}
|
|
|
|
if (v25 != 0)
|
|
{
|
|
data[0] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xF7;
|
|
}
|
|
|
|
var v15 = (byte)(data[28] >> 1);
|
|
data[28] <<= 7;
|
|
data[28] |= v15;
|
|
var v16 = data[28];
|
|
data[28] = data[13];
|
|
data[13] = v16;
|
|
var v24 = (byte)((data[19] >> 5) & 1);
|
|
if (((data[19] >> 4) & 1) != 0)
|
|
{
|
|
data[19] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[19] &= 0xDF;
|
|
}
|
|
|
|
if (v24 != 0)
|
|
{
|
|
data[19] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[19] &= 0xEF;
|
|
}
|
|
|
|
var v17 = data[8];
|
|
data[8] = data[31];
|
|
data[31] = v17;
|
|
var v18 = (byte)(data[9] >> 6);
|
|
data[9] *= 4;
|
|
data[9] |= v18;
|
|
var v19 = data[10];
|
|
data[10] = data[19];
|
|
data[19] = v19;
|
|
var v23 = (byte)((data[13] >> 4) & 1);
|
|
if (((data[13] >> 3) & 1) != 0)
|
|
{
|
|
data[13] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[13] &= 0xEF;
|
|
}
|
|
|
|
if (v23 != 0)
|
|
{
|
|
data[13] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[13] &= 0xF7;
|
|
}
|
|
|
|
var v20 = (byte)(data[3] >> 3);
|
|
data[3] *= 32;
|
|
data[3] |= v20;
|
|
var v22 = (byte)((data[9] >> 3) & 1);
|
|
if (((data[9] >> 4) & 1) != 0)
|
|
{
|
|
data[9] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[9] &= 0xF7;
|
|
}
|
|
|
|
if (v22 != 0)
|
|
{
|
|
data[9] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[9] &= 0xEF;
|
|
}
|
|
|
|
var v21 = data[22];
|
|
data[22] = data[9];
|
|
data[9] = v21;
|
|
}
|
|
else
|
|
{
|
|
var v10 = data[15];
|
|
data[15] = data[9];
|
|
data[9] = v10;
|
|
var v11 = (byte)(data[5] >> 7);
|
|
data[5] *= 2;
|
|
data[5] |= v11;
|
|
data[8] ^= 0xAE;
|
|
var v12 = data[12];
|
|
data[12] = data[6];
|
|
data[6] = v12;
|
|
var v28 = (byte)((data[8] >> 5) & 1);
|
|
if (((data[8] >> 4) & 1) != 0)
|
|
{
|
|
data[8] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[8] &= 0xDF;
|
|
}
|
|
|
|
if (v28 != 0)
|
|
{
|
|
data[8] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[8] &= 0xEF;
|
|
}
|
|
|
|
var v27 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 4) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v27 != 0)
|
|
{
|
|
data[3] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xEF;
|
|
}
|
|
|
|
data[15] ^= 0x57;
|
|
var v13 = data[11];
|
|
data[11] = data[0];
|
|
data[0] = v13;
|
|
var v26 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 5) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v26 != 0)
|
|
{
|
|
data[3] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xDF;
|
|
}
|
|
|
|
data[13] ^= 0xB2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v2 = (byte)((data[0] >> 2) & 1);
|
|
if (((data[0] >> 1) & 1) != 0)
|
|
{
|
|
data[0] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFB;
|
|
}
|
|
|
|
if (v2 != 0)
|
|
{
|
|
data[0] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFD;
|
|
}
|
|
|
|
var v6 = data[4];
|
|
data[4] = data[6];
|
|
data[6] = v6;
|
|
var v7 = (byte)(data[1] >> 6);
|
|
data[1] *= 4;
|
|
data[1] |= v7;
|
|
var v8 = data[7];
|
|
data[7] = data[6];
|
|
data[6] = v8;
|
|
var v9 = data[4];
|
|
data[4] = data[0];
|
|
data[0] = v9;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v3 = data[2];
|
|
data[2] = data[2];
|
|
data[2] = v3;
|
|
var v4 = data[3];
|
|
data[3] = data[3];
|
|
data[3] = v4;
|
|
var v5 = (byte)(data[1] >> 2);
|
|
data[1] <<= 6;
|
|
data[1] |= v5;
|
|
data[1] ^= 0x5A;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc/>
|
|
public void Correct(Span<byte> data)
|
|
{
|
|
if (data.Length >= 4)
|
|
{
|
|
if (data.Length >= 8)
|
|
{
|
|
if (data.Length >= 16)
|
|
{
|
|
if (data.Length >= 32)
|
|
{
|
|
var v14 = data[22];
|
|
data[22] = data[9];
|
|
data[9] = v14;
|
|
var v25 = (byte)((data[9] >> 3) & 1);
|
|
if (((data[9] >> 4) & 1) != 0)
|
|
{
|
|
data[9] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[9] &= 0xF7;
|
|
}
|
|
|
|
if (v25 != 0)
|
|
{
|
|
data[9] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[9] &= 0xEF;
|
|
}
|
|
|
|
var v15 = (byte)(data[3] >> 5);
|
|
data[3] *= 8;
|
|
data[3] |= v15;
|
|
var v24 = (byte)((data[13] >> 4) & 1);
|
|
if (((data[13] >> 3) & 1) != 0)
|
|
{
|
|
data[13] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[13] &= 0xEF;
|
|
}
|
|
|
|
if (v24 != 0)
|
|
{
|
|
data[13] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[13] &= 0xF7;
|
|
}
|
|
|
|
var v16 = data[10];
|
|
data[10] = data[19];
|
|
data[19] = v16;
|
|
var v17 = (byte)(data[9] >> 2);
|
|
data[9] <<= 6;
|
|
data[9] |= v17;
|
|
var v18 = data[8];
|
|
data[8] = data[31];
|
|
data[31] = v18;
|
|
var v23 = (byte)((data[19] >> 5) & 1);
|
|
if (((data[19] >> 4) & 1) != 0)
|
|
{
|
|
data[19] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[19] &= 0xDF;
|
|
}
|
|
|
|
if (v23 != 0)
|
|
{
|
|
data[19] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[19] &= 0xEF;
|
|
}
|
|
|
|
var v19 = data[28];
|
|
data[28] = data[13];
|
|
data[13] = v19;
|
|
var v20 = (byte)(data[28] >> 7);
|
|
data[28] *= 2;
|
|
data[28] |= v20;
|
|
var v22 = (byte)((data[0] >> 2) & 1);
|
|
if (((data[0] >> 3) & 1) != 0)
|
|
{
|
|
data[0] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFB;
|
|
}
|
|
|
|
if (v22 != 0)
|
|
{
|
|
data[0] |= 8;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xF7;
|
|
}
|
|
|
|
var v21 = (byte)(data[31] >> 2);
|
|
data[31] <<= 6;
|
|
data[31] |= v21;
|
|
}
|
|
else
|
|
{
|
|
data[13] ^= 0xB2;
|
|
var v28 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 5) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v28 != 0)
|
|
{
|
|
data[3] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xDF;
|
|
}
|
|
|
|
var v10 = data[11];
|
|
data[11] = data[0];
|
|
data[0] = v10;
|
|
data[15] ^= 0x57;
|
|
var v27 = (byte)((data[3] >> 2) & 1);
|
|
if (((data[3] >> 4) & 1) != 0)
|
|
{
|
|
data[3] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xFB;
|
|
}
|
|
|
|
if (v27 != 0)
|
|
{
|
|
data[3] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[3] &= 0xEF;
|
|
}
|
|
|
|
var v26 = (byte)((data[8] >> 5) & 1);
|
|
if (((data[8] >> 4) & 1) != 0)
|
|
{
|
|
data[8] |= 0x20;
|
|
}
|
|
else
|
|
{
|
|
data[8] &= 0xDF;
|
|
}
|
|
|
|
if (v26 != 0)
|
|
{
|
|
data[8] |= 0x10;
|
|
}
|
|
else
|
|
{
|
|
data[8] &= 0xEF;
|
|
}
|
|
|
|
var v11 = data[12];
|
|
data[12] = data[6];
|
|
data[6] = v11;
|
|
data[8] ^= 0xAE;
|
|
var v12 = (byte)(data[5] >> 1);
|
|
data[5] <<= 7;
|
|
data[5] |= v12;
|
|
var v13 = data[15];
|
|
data[15] = data[9];
|
|
data[9] = v13;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var v6 = data[4];
|
|
data[4] = data[0];
|
|
data[0] = v6;
|
|
var v7 = data[7];
|
|
data[7] = data[6];
|
|
data[6] = v7;
|
|
var v8 = (byte)(data[1] >> 2);
|
|
data[1] <<= 6;
|
|
data[1] |= v8;
|
|
var v9 = data[4];
|
|
data[4] = data[6];
|
|
data[6] = v9;
|
|
var v2 = (byte)((data[0] >> 2) & 1);
|
|
if (((data[0] >> 1) & 1) != 0)
|
|
{
|
|
data[0] |= 4;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFB;
|
|
}
|
|
|
|
if (v2 != 0)
|
|
{
|
|
data[0] |= 2;
|
|
}
|
|
else
|
|
{
|
|
data[0] &= 0xFD;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data[1] ^= 0x5A;
|
|
var v3 = (byte)(data[1] >> 6);
|
|
data[1] *= 4;
|
|
data[1] |= v3;
|
|
var v4 = data[3];
|
|
data[3] = data[3];
|
|
data[3] = v4;
|
|
var v5 = data[2];
|
|
data[2] = data[2];
|
|
data[2] = v5;
|
|
}
|
|
}
|
|
}
|
|
} |