    001    package net.minecraft.command;
    002
    003    import java.util.Iterator;
    004    import java.util.List;
    005    import java.util.regex.Matcher;
    006    import java.util.regex.Pattern;
    007    import net.minecraft.entity.player.EntityPlayerMP;
    008    import net.minecraft.server.MinecraftServer;
    009    import net.minecraft.server.management.BanEntry;
    010
    011    public class CommandServerBanIp extends CommandBase
    012    {
    013        public static final Pattern IPv4Pattern = Pattern.compile("^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])$");
    014
    015        public String getCommandName()
    016        {
    017            return "ban-ip";
    018        }
    019
    020        /**
    021         * Return the required permission level for this command.
    022         */
    023        public int getRequiredPermissionLevel()
    024        {
    025            return 3;
    026        }
    027
    028        /**
    029         * Returns true if the given command sender is allowed to use this command.
    030         */
    031        public boolean canCommandSenderUseCommand(ICommandSender par1ICommandSender)
    032        {
    033            return MinecraftServer.getServer().getConfigurationManager().getBannedIPs().isListActive() && super.canCommandSenderUseCommand(par1ICommandSender);
    034        }
    035
    036        public String getCommandUsage(ICommandSender par1ICommandSender)
    037        {
    038            return par1ICommandSender.translateString("commands.banip.usage", new Object[0]);
    039        }
    040
    041        public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
    042        {
    043            if (par2ArrayOfStr.length >= 1 && par2ArrayOfStr[0].length() > 1)
    044            {
    045                Matcher var3 = IPv4Pattern.matcher(par2ArrayOfStr[0]);
    046                String var4 = null;
    047
    048                if (par2ArrayOfStr.length >= 2)
    049                {
    050                    var4 = func_82360_a(par1ICommandSender, par2ArrayOfStr, 1);
    051                }
    052
    053                if (var3.matches())
    054                {
    055                    this.banIP(par1ICommandSender, par2ArrayOfStr[0], var4);
    056                }
    057                else
    058                {
    059                    EntityPlayerMP var5 = MinecraftServer.getServer().getConfigurationManager().getPlayerForUsername(par2ArrayOfStr[0]);
    060
    061                    if (var5 == null)
    062                    {
    063                        throw new PlayerNotFoundException("commands.banip.invalid", new Object[0]);
    064                    }
    065
    066                    this.banIP(par1ICommandSender, var5.func_71114_r(), var4);
    067                }
    068            }
    069            else
    070            {
    071                throw new WrongUsageException("commands.banip.usage", new Object[0]);
    072            }
    073        }
    074
    075        /**
    076         * Adds the strings available in this command to the given list of tab completion options.
    077         */
    078        public List addTabCompletionOptions(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
    079        {
    080            return par2ArrayOfStr.length == 1 ? getListOfStringsMatchingLastWord(par2ArrayOfStr, MinecraftServer.getServer().getAllUsernames()) : null;
    081        }
    082
    083        /**
    084         * Actually does the banning work.
    085         */
    086        protected void banIP(ICommandSender par1ICommandSender, String par2Str, String par3Str)
    087        {
    088            BanEntry var4 = new BanEntry(par2Str);
    089            var4.setBannedBy(par1ICommandSender.getCommandSenderName());
    090
    091            if (par3Str != null)
    092            {
    093                var4.setBanReason(par3Str);
    094            }
    095
    096            MinecraftServer.getServer().getConfigurationManager().getBannedIPs().put(var4);
    097            List var5 = MinecraftServer.getServer().getConfigurationManager().getPlayerList(par2Str);
    098            String[] var6 = new String[var5.size()];
    099            int var7 = 0;
    100            EntityPlayerMP var9;
    101
    102            for (Iterator var8 = var5.iterator(); var8.hasNext(); var6[var7++] = var9.getEntityName())
    103            {
    104                var9 = (EntityPlayerMP)var8.next();
    105                var9.playerNetServerHandler.kickPlayerFromServer("You have been IP banned.");
    106            }
    107
    108            if (var5.isEmpty())
    109            {
    110                notifyAdmins(par1ICommandSender, "commands.banip.success", new Object[] {par2Str});
    111            }
    112            else
    113            {
    114                notifyAdmins(par1ICommandSender, "commands.banip.success.players", new Object[] {par2Str, joinNiceString(var6)});
    115            }
    116        }
    117    }