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