diff options
| -rw-r--r-- | modules/nixos/on-demand-minecraft/default.nix | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/modules/nixos/on-demand-minecraft/default.nix b/modules/nixos/on-demand-minecraft/default.nix index 3ccbec9..2e48457 100644 --- a/modules/nixos/on-demand-minecraft/default.nix +++ b/modules/nixos/on-demand-minecraft/default.nix @@ -103,6 +103,34 @@ in { ''; }; + whitelist = mkOption { + description = '' + Whitelisted players. This is a mapping from Minecraft usernames to + UUIDs. You can use <https://mcuuid.net/> to get a Minecraft UUID for a + username. + + Note, this option only has an effect when the whitelist is enabled via + `services.on-demand-minecraft.server-properties` by setting `white-list + = true`. + ''; + type = with types; let + minecraftUuid = + strMatching + "[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}" + // { + description = "Minecraft UUID"; + }; + in + attrsOf minecraftUuid; + example = lib.literalExpression '' + { + username1 = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"; + username2 = "yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy"; + }; + ''; + default = {}; + }; + jvm-options = mkOption { description = "JVM options for the Minecraft server. List of command line arguments."; type = types.listOf lib.types.str; @@ -164,6 +192,17 @@ in { eula=true ''; + # We always generate a (possibly empty) whitelist file. The server just + # won't use it, when the corresponding server property is disabled. + whitelist-file = + pkgs.writeText "whitelist.json" + (builtins.toJSON + (lib.mapAttrsToList (n: v: { + name = n; + uuid = v; + }) + cfg.whitelist)); + # HACK: Each server is given its own subdirectory so # incompatibilities between servers don't cause complaints. start-server = pkgs.writeShellScript "minecraft-server-start" '' @@ -175,6 +214,7 @@ in { # Set up/update environment for server ln -sf ${eula-file} eula.txt + ln -sf ${whitelist-file} whitelist.json cp -f ${server-properties-file} server.properties chmod u+w server.properties # Must be writable because server regenerates it. @@ -350,6 +390,10 @@ in { assertion = cfg.eula; message = "You must agree to Mojangs EULA to run minecraft-server. Read https://account.mojang.com/documents/minecraft_eula and set `services.minecraft-server.eula` to `true` if you agree."; } + { + assertion = cfg.whitelist != {} -> cfg.server-properties."white-list"; + message = "If you set a `services.on-demand-minecraft.whitelist`, you must set `services.on-demand-minecraft.server-properties.\"white-list\" = true`"; + } ]; }; } |