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    }