75 lines
3.2 KiB
Java
75 lines
3.2 KiB
Java
package net.minecraft.server.commands;
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import com.google.common.net.InetAddresses;
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import com.mojang.brigadier.CommandDispatcher;
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import com.mojang.brigadier.arguments.StringArgumentType;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
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import java.util.List;
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import net.minecraft.commands.CommandSourceStack;
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import net.minecraft.commands.Commands;
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import net.minecraft.commands.arguments.MessageArgument;
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import net.minecraft.commands.arguments.selector.EntitySelector;
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import net.minecraft.network.chat.Component;
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import net.minecraft.server.level.ServerPlayer;
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import net.minecraft.server.players.IpBanList;
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import net.minecraft.server.players.IpBanListEntry;
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import org.jetbrains.annotations.Nullable;
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public class BanIpCommands {
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private static final SimpleCommandExceptionType ERROR_INVALID_IP = new SimpleCommandExceptionType(Component.translatable("commands.banip.invalid"));
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private static final SimpleCommandExceptionType ERROR_ALREADY_BANNED = new SimpleCommandExceptionType(Component.translatable("commands.banip.failed"));
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public static void register(CommandDispatcher<CommandSourceStack> dispatcher) {
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dispatcher.register(
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Commands.literal("ban-ip")
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.requires(Commands.hasPermission(3))
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.then(
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Commands.argument("target", StringArgumentType.word())
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.executes(commandContext -> banIpOrName(commandContext.getSource(), StringArgumentType.getString(commandContext, "target"), null))
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.then(
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Commands.argument("reason", MessageArgument.message())
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.executes(
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commandContext -> banIpOrName(
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commandContext.getSource(), StringArgumentType.getString(commandContext, "target"), MessageArgument.getMessage(commandContext, "reason")
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)
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)
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)
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)
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);
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}
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private static int banIpOrName(CommandSourceStack source, String username, @Nullable Component reason) throws CommandSyntaxException {
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if (InetAddresses.isInetAddress(username)) {
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return banIp(source, username, reason);
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} else {
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ServerPlayer serverPlayer = source.getServer().getPlayerList().getPlayerByName(username);
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if (serverPlayer != null) {
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return banIp(source, serverPlayer.getIpAddress(), reason);
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} else {
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throw ERROR_INVALID_IP.create();
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}
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}
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}
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private static int banIp(CommandSourceStack source, String ip, @Nullable Component reason) throws CommandSyntaxException {
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IpBanList ipBanList = source.getServer().getPlayerList().getIpBans();
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if (ipBanList.isBanned(ip)) {
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throw ERROR_ALREADY_BANNED.create();
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} else {
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List<ServerPlayer> list = source.getServer().getPlayerList().getPlayersWithAddress(ip);
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IpBanListEntry ipBanListEntry = new IpBanListEntry(ip, null, source.getTextName(), null, reason == null ? null : reason.getString());
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ipBanList.add(ipBanListEntry);
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source.sendSuccess(() -> Component.translatable("commands.banip.success", ip, ipBanListEntry.getReason()), true);
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if (!list.isEmpty()) {
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source.sendSuccess(() -> Component.translatable("commands.banip.info", list.size(), EntitySelector.joinNames(list)), true);
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}
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for (ServerPlayer serverPlayer : list) {
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serverPlayer.connection.disconnect(Component.translatable("multiplayer.disconnect.ip_banned"));
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}
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return list.size();
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}
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}
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}
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