44 lines
1.4 KiB
C#
44 lines
1.4 KiB
C#
using System.Security.Cryptography;
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using System.Text;
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namespace Pilz.Gaming.Minecraft
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{
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public static class Utils
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{
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public static string GetUUID(string value)
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{
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using var md5 = MD5.Create();
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//extracted from the java code:
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//new GameProfile(UUID.nameUUIDFromBytes(("OfflinePlayer:" + name).getBytes(Charsets.UTF_8)), name));
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byte[] data = md5.ComputeHash(Encoding.ASCII.GetBytes(value));
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//set the version to 3 -> Name based md5 hash
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data[6] = Convert.ToByte(data[6] & 0x0f | 0x30);
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//IETF variant
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data[8] = Convert.ToByte(data[8] & 0x3f | 0x80);
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//example: 069a79f4-44e9-4726-a5be-fca90e38aaf5
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var striped = Convert.ToHexString(data);
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var components = new string[] {
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striped[..].Remove(8),
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striped[8..].Remove(4),
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striped[12..].Remove(4),
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striped[16..].Remove(4),
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striped[20..]
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};
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return string.Join('-', components).ToLower();
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}
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public static string GetPlayerUUID(string username, bool offlineMode)
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{
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using var md5 = MD5.Create();
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if (!offlineMode)
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throw new NotSupportedException("Getting player's online UUID via the Mojang API is not supported at this time.");
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return GetUUID("OfflinePlayer:" + username);
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}
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}
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}
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