Matt Sijbers
a1331212cb
Self-hosted Minecraft modpack distribution + administration system.
- launcher/ Avalonia 12 desktop client; single-file win-x64 publish.
Microsoft auth via XboxAuthNet, manifest+SHA-1 mod sync,
portable install path, sidecar settings.
- server/ brass-sigil-server daemon (.NET 8, linux-x64). Wraps the
MC subprocess, embedded Kestrel admin panel with cookie
auth + rate limiting, RCON bridge, scheduled backups,
BlueMap CLI integration with player markers + skin proxy,
friend-side whitelist request flow, world wipe with seed
selection (keep current / random / custom).
- pack/ pack.lock.json (Modrinth + manual CurseForge entries),
data-only tweak source under tweaks/, build outputs in
overrides/ (gitignored).
- scripts/ Build-Pack / Build-Tweaks / Update-Pack / Check-Updates
plus Deploy-Brass.ps1 unified one-shot deploy with
version-bump pre-flight and daemon-state detection.
102 lines
3.4 KiB
C#
102 lines
3.4 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using fNbt;
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namespace ModpackLauncher.Services;
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/// <summary>
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/// Pre-populates Minecraft's multiplayer server list (`servers.dat`) so the
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/// modpack's server is one click away on first launch.
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///
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/// servers.dat is uncompressed NBT (unlike level.dat which is gzipped). Schema:
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/// compound {
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/// servers : list[compound] {
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/// name : string
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/// ip : string
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/// acceptTextures : byte (optional, 1 = enabled)
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/// hidden : byte (optional, 0 = visible)
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/// icon : string (optional, base64 PNG)
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/// }
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/// }
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/// </summary>
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public sealed class ServerListService
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{
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/// <summary>
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/// Add or update an entry. Match-by-IP: if an entry with the same IP exists,
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/// update its name; otherwise prepend a new entry so the friend's first
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/// glance at multiplayer shows our server at the top.
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/// </summary>
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public void EnsureServer(string gameDir, string name, string ip)
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{
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if (string.IsNullOrWhiteSpace(name) || string.IsNullOrWhiteSpace(ip)) return;
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Directory.CreateDirectory(gameDir);
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var path = Path.Combine(gameDir, "servers.dat");
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NbtCompound root;
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NbtList servers;
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if (File.Exists(path))
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{
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try
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{
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var nbt = new NbtFile();
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nbt.LoadFromFile(path, NbtCompression.None, _ => true);
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root = nbt.RootTag;
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if (root.TryGet("servers", out NbtList? existingList) && existingList is not null)
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{
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servers = existingList;
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}
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else
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{
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servers = new NbtList("servers", NbtTagType.Compound);
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root.Add(servers);
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}
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}
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catch
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{
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// Existing file unreadable -- start fresh rather than crashing the install.
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root = new NbtCompound("");
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servers = new NbtList("servers", NbtTagType.Compound);
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root.Add(servers);
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}
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}
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else
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{
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root = new NbtCompound("");
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servers = new NbtList("servers", NbtTagType.Compound);
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root.Add(servers);
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}
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// Match-by-IP. If found, update the display name; otherwise prepend.
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for (int i = 0; i < servers.Count; i++)
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{
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if (servers[i] is not NbtCompound entry) continue;
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if (entry.TryGet("ip", out NbtString? ipTag) && ipTag?.Value == ip)
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{
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entry["name"] = new NbtString("name", name);
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Save(root, path);
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return;
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}
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}
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var newEntry = new NbtCompound
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{
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new NbtString("name", name),
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new NbtString("ip", ip),
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// acceptTextures = 1 lets the server send its resource pack without prompting
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// (the player still gets the prompt; this just allows the option). Default
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// value matches what vanilla MC writes when you click "Done" in the UI.
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new NbtByte("acceptTextures", 1),
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};
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servers.Insert(0, newEntry);
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Save(root, path);
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}
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private static void Save(NbtCompound root, string path)
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{
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var file = new NbtFile(root);
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file.SaveToFile(path, NbtCompression.None);
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}
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}
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