cn.nukkit.command.defaults.BanIpCommand Maven / Gradle / Ivy
package cn.nukkit.command.defaults;
import cn.nukkit.Player;
import cn.nukkit.api.PowerNukkitDifference;
import cn.nukkit.command.Command;
import cn.nukkit.command.CommandSender;
import cn.nukkit.command.data.CommandParamType;
import cn.nukkit.command.data.CommandParameter;
import cn.nukkit.event.player.PlayerKickEvent;
import cn.nukkit.lang.TranslationContainer;
import cn.nukkit.nbt.NBTIO;
import cn.nukkit.nbt.tag.CompoundTag;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.regex.Pattern;
/**
* @author MagicDroidX (Nukkit Project)
*/
public class BanIpCommand extends VanillaCommand {
public BanIpCommand(String name) {
super(name, "commands.banip.description", "%commands.banip.usage");
this.setPermission("nukkit.command.ban.ip");
this.setAliases(new String[]{"banip"});
this.commandParameters.clear();
this.commandParameters.put("default", new CommandParameter[]{
CommandParameter.newType("player", CommandParamType.TARGET),
CommandParameter.newType("reason", true, CommandParamType.STRING)
});
this.commandParameters.put("byIp", new CommandParameter[]{
CommandParameter.newType("ip", CommandParamType.STRING),
CommandParameter.newType("reason", true, CommandParamType.STRING)
});
}
@PowerNukkitDifference(since = "1.4.0.0-PN", info = "Fixed resource leak")
@Override
public boolean execute(CommandSender sender, String commandLabel, String[] args) {
if (!this.testPermission(sender)) {
return false;
}
if (args.length == 0) {
sender.sendMessage(new TranslationContainer("commands.generic.usage", "\n" + this.getCommandFormatTips()));
return false;
}
String value = args[0];
StringBuilder reason = new StringBuilder();
for (int i = 1; i < args.length; i++) {
reason.append(args[i]).append(" ");
}
if (reason.length() > 0) {
reason = new StringBuilder(reason.substring(0, reason.length() - 1));
}
if (Pattern.matches("^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", value)) {
this.processIPBan(value, sender, reason.toString());
Command.broadcastCommandMessage(sender, new TranslationContainer("commands.banip.success", value));
} else {
Player player = sender.getServer().getPlayer(value);
if (player != null) {
this.processIPBan(player.getAddress(), sender, reason.toString());
Command.broadcastCommandMessage(sender, new TranslationContainer("commands.banip.success.players", player.getAddress(), player.getName()));
} else {
String name = value.toLowerCase();
String path = sender.getServer().getDataPath() + "players/";
File file = new File(path + name + ".dat");
CompoundTag nbt = null;
if (file.exists()) {
try (FileInputStream inputStream = new FileInputStream(file)) {
nbt = NBTIO.readCompressed(inputStream);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
if (nbt != null && nbt.contains("lastIP") && Pattern.matches("^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", (value = nbt.getString("lastIP")))) {
this.processIPBan(value, sender, reason.toString());
Command.broadcastCommandMessage(sender, new TranslationContainer("commands.banip.success", value));
} else {
sender.sendMessage(new TranslationContainer("commands.banip.invalid"));
return false;
}
}
}
return true;
}
private void processIPBan(String ip, CommandSender sender, String reason) {
sender.getServer().getIPBans().addBan(ip, reason, null, sender.getName());
for (Player player : new ArrayList<>(sender.getServer().getOnlinePlayers().values())) {
if (player.getAddress().equals(ip)) {
player.kick(PlayerKickEvent.Reason.IP_BANNED, !reason.isEmpty() ? reason : "IP banned");
}
}
try {
sender.getServer().getNetwork().blockAddress(InetAddress.getByName(ip), -1);
} catch (UnknownHostException e) {
// ignore
}
}
}
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