TotalFreedomMod/src/me/StevenLawson/TotalFreedomMod/TFM_Util.java

package me.StevenLawson.TotalFreedomMod;

import java.io.*;
import java.net.URI;
import java.net.URL;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.jar.JarFile;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
import net.minecraft.server.BanEntry;
import net.minecraft.server.BanList;
import net.minecraft.server.MinecraftServer;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.bukkit.*;
import org.bukkit.block.Block;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.*;

public class TFM_Util
{
    private static final Map<String, Integer> eject_tracker = new HashMap<String, Integer>();
    public static final Map<String, EntityType> mobtypes = new HashMap<String, EntityType>();
    public static final List<String> stop_commands = Arrays.asList("stop", "off", "end", "halt", "die");

    static
    {
        for (EntityType entity_type : EntityType.values())
        {
            try
            {
                if (entity_type.getName() != null)
                {
                    if (Creature.class.isAssignableFrom(entity_type.getEntityClass()))
                    {
                        mobtypes.put(entity_type.getName().toLowerCase(), entity_type);
                    }
                }
            }
            catch (Exception ex)
            {
            }
        }
    }

    private TFM_Util()
    {
        throw new AssertionError();
    }

    public static void bcastMsg(String message, ChatColor color)
    {
        TFM_Log.info(message, true);

        for (Player p : Bukkit.getOnlinePlayers())
        {
            p.sendMessage((color == null ? "" : color) + message);
        }
    }

    public static void bcastMsg(String message)
    {
        TFM_Util.bcastMsg(message, null);
    }

    public static void playerMsg(CommandSender sender, String message, ChatColor color)
    {
        sender.sendMessage(color + message);
    }

    public static void playerMsg(CommandSender sender, String message)
    {
        TFM_Util.playerMsg(sender, message, ChatColor.GRAY);
    }

    public static void adminAction(String adminName, String action, boolean isRed)
    {
        TFM_Util.bcastMsg(adminName + " - " + action, (isRed ? ChatColor.RED : ChatColor.AQUA));
    }

    @Deprecated
    public static String implodeStringList(String glue, List<String> pieces)
    {
        return StringUtils.join(pieces, glue);
    }

    public static String formatLocation(Location in_loc)
    {
        return String.format("%s: (%d, %d, %d)",
                in_loc.getWorld().getName(),
                Math.round(in_loc.getX()),
                Math.round(in_loc.getY()),
                Math.round(in_loc.getZ()));
    }

    public static void gotoWorld(CommandSender sender, String targetworld)
    {
        if (sender instanceof Player)
        {
            Player sender_p = (Player) sender;

            if (sender_p.getWorld().getName().equalsIgnoreCase(targetworld))
            {
                sender.sendMessage(ChatColor.GRAY + "Going to main world.");
                sender_p.teleport(Bukkit.getWorlds().get(0).getSpawnLocation());
                return;
            }

            for (World world : Bukkit.getWorlds())
            {
                if (world.getName().equalsIgnoreCase(targetworld))
                {
                    sender.sendMessage(ChatColor.GRAY + "Going to world: " + targetworld);
                    sender_p.teleport(world.getSpawnLocation());
                    return;
                }
            }

            sender.sendMessage(ChatColor.GRAY + "World " + targetworld + " not found.");
        }
        else
        {
            sender.sendMessage(TotalFreedomMod.NOT_FROM_CONSOLE);
        }
    }

    public static void buildHistory(Location location, int length, TFM_UserInfo playerdata)
    {
        Block center_block = location.getBlock();
        for (int x_offset = -length; x_offset <= length; x_offset++)
        {
            for (int y_offset = -length; y_offset <= length; y_offset++)
            {
                for (int z_offset = -length; z_offset <= length; z_offset++)
                {
                    Block block = center_block.getRelative(x_offset, y_offset, z_offset);
                    playerdata.insertHistoryBlock(block.getLocation(), block.getType());
                }
            }
        }
    }

    public static void generateCube(Location location, int length, Material material)
    {
        Block center_block = location.getBlock();
        for (int x_offset = -length; x_offset <= length; x_offset++)
        {
            for (int y_offset = -length; y_offset <= length; y_offset++)
            {
                for (int z_offset = -length; z_offset <= length; z_offset++)
                {
                    center_block.getRelative(x_offset, y_offset, z_offset).setType(material);
                }
            }
        }
    }

    public static void setWorldTime(World world, long ticks)
    {
        long time = world.getTime();
        time -= time % 24000;
        world.setTime(time + 24000 + ticks);
    }

    public static void createDefaultConfiguration(String name, File plugin_file)
    {
        TotalFreedomMod tfm = TotalFreedomMod.plugin;

        File actual = new File(tfm.getDataFolder(), name);
        if (!actual.exists())
        {
            TFM_Log.info("Installing default configuration file template: " + actual.getPath());
            InputStream input = null;
            try
            {
                JarFile file = new JarFile(plugin_file);
                ZipEntry copy = file.getEntry(name);
                if (copy == null)
                {
                    TFM_Log.severe("Unable to read default configuration: " + actual.getPath());
                    return;
                }
                input = file.getInputStream(copy);
            }
            catch (IOException ioex)
            {
                TFM_Log.severe("Unable to read default configuration: " + actual.getPath());
            }
            if (input != null)
            {
                FileOutputStream output = null;

                try
                {
                    tfm.getDataFolder().mkdirs();
                    output = new FileOutputStream(actual);
                    byte[] buf = new byte[8192];
                    int length;
                    while ((length = input.read(buf)) > 0)
                    {
                        output.write(buf, 0, length);
                    }

                    TFM_Log.info("Default configuration file written: " + actual.getPath());
                }
                catch (IOException ioex)
                {
                    TFM_Log.severe("Unable to write default configuration: " + actual.getPath() + "\n" + ExceptionUtils.getStackTrace(ioex));
                }
                finally
                {
                    try
                    {
                        if (input != null)
                        {
                            input.close();
                        }
                    }
                    catch (IOException ioex)
                    {
                    }

                    try
                    {
                        if (output != null)
                        {
                            output.close();
                        }
                    }
                    catch (IOException ioex)
                    {
                    }
                }
            }
        }
    }

    @Deprecated
    public static boolean isUserSuperadmin(CommandSender user)
    {
        return TFM_SuperadminList.isUserSuperadmin(user);
    }

    @Deprecated
    public static boolean checkPartialSuperadminIP(String user_ip)
    {
        return TFM_SuperadminList.checkPartialSuperadminIP(user_ip);
    }

    public static int wipeEntities(boolean wipe_explosives, boolean wipe_vehicles)
    {
        int removed = 0;
        for (World world : Bukkit.getWorlds())
        {
            for (Entity ent : world.getEntities())
            {
                if (ent instanceof Projectile
                        || ent instanceof Item
                        || ent instanceof ExperienceOrb
                        || (ent instanceof Explosive && wipe_explosives)
                        || (ent instanceof Vehicle && wipe_vehicles))
                {
                    ent.remove();
                    removed++;
                }
            }
        }
        return removed;
    }

    public static boolean deleteFolder(File file)
    {
        if (file.exists())
        {
            if (file.isDirectory())
            {
                for (File f : file.listFiles())
                {
                    if (!TFM_Util.deleteFolder(f))
                    {
                        return false;
                    }
                }
            }
            file.delete();
            return !file.exists();
        }
        else
        {
            return false;
        }
    }

    public static EntityType getEntityType(String mobname) throws Exception
    {
        mobname = mobname.toLowerCase().trim();

        if (!TFM_Util.mobtypes.containsKey(mobname))
        {
            throw new Exception();
        }

        return TFM_Util.mobtypes.get(mobname);
    }

    public static void zip(File directory, File zipfile, boolean verbose, CommandSender sender) throws IOException
    {
        URI base = directory.toURI();
        Deque<File> queue = new LinkedList<File>();
        queue.push(directory);
        OutputStream out = new FileOutputStream(zipfile);
        Closeable res = out;
        try
        {
            ZipOutputStream zout = new ZipOutputStream(out);
            res = zout;
            while (!queue.isEmpty())
            {
                directory = queue.pop();
                for (File kid : directory.listFiles())
                {
                    String name = base.relativize(kid.toURI()).getPath();
                    if (kid.isDirectory())
                    {
                        queue.push(kid);
                        name = name.endsWith("/") ? name : name + "/";
                        zout.putNextEntry(new ZipEntry(name));
                    }
                    else
                    {
                        zout.putNextEntry(new ZipEntry(name));
                        copy(kid, zout);
                        zout.closeEntry();
                    }

                    if (verbose)
                    {
                        sender.sendMessage("Zipping: " + name);
                    }
                }
            }
        }
        finally
        {
            res.close();
        }
    }

    public static void unzip(File zipfile, File directory) throws IOException
    {
        ZipFile zfile = new ZipFile(zipfile);
        Enumeration<? extends ZipEntry> entries = zfile.entries();
        while (entries.hasMoreElements())
        {
            ZipEntry entry = entries.nextElement();
            File file = new File(directory, entry.getName());
            if (entry.isDirectory())
            {
                file.mkdirs();
            }
            else
            {
                file.getParentFile().mkdirs();
                InputStream in = zfile.getInputStream(entry);
                try
                {
                    copy(in, file);
                }
                finally
                {
                    in.close();
                }
            }
        }
    }

    private static void copy(InputStream in, OutputStream out) throws IOException
    {
        byte[] buffer = new byte[1024];
        while (true)
        {
            int readCount = in.read(buffer);
            if (readCount < 0)
            {
                break;
            }
            out.write(buffer, 0, readCount);
        }
    }

    private static void copy(File file, OutputStream out) throws IOException
    {
        InputStream in = new FileInputStream(file);
        try
        {
            copy(in, out);
        }
        finally
        {
            in.close();
        }
    }

    private static void copy(InputStream in, File file) throws IOException
    {
        OutputStream out = new FileOutputStream(file);
        try
        {
            copy(in, out);
        }
        finally
        {
            out.close();
        }
    }

    public static boolean isStopCommand(String command)
    {
        return stop_commands.contains(command.toLowerCase());
    }

    enum EjectMethod
    {
        STRIKE_ONE, STRIKE_TWO, STRIKE_THREE;
    }

    public static void autoEject(Player p, String kickMessage)
    {
        EjectMethod method = EjectMethod.STRIKE_ONE;
        String player_ip = null;

        try
        {
            player_ip = p.getAddress().getAddress().getHostAddress();

            Integer num_kicks = TFM_Util.eject_tracker.get(player_ip);
            if (num_kicks == null)
            {
                num_kicks = new Integer(0);
            }

            num_kicks = new Integer(num_kicks.intValue() + 1);

            TFM_Util.eject_tracker.put(player_ip, num_kicks);

            if (num_kicks.intValue() <= 1)
            {
                method = EjectMethod.STRIKE_ONE;
            }
            else if (num_kicks.intValue() == 2)
            {
                method = EjectMethod.STRIKE_TWO;
            }
            else if (num_kicks.intValue() >= 3)
            {
                method = EjectMethod.STRIKE_THREE;
            }
        }
        catch (Exception ex)
        {
        }

        TFM_Log.info("autoEject -> name: " + p.getName() + " - player_ip: " + player_ip + " - method: " + method.toString());

        p.setOp(false);
        p.setGameMode(GameMode.SURVIVAL);
        p.getInventory().clear();

        switch (method)
        {
            case STRIKE_ONE:
            {
                Calendar c = new GregorianCalendar();
                c.add(Calendar.MINUTE, 1);
                Date expires = c.getTime();

                TFM_Util.bcastMsg(ChatColor.RED + p.getName() + " has been banned for 1 minute.");

                TFM_Util.banIP(player_ip, kickMessage, "AutoEject", expires);
                TFM_Util.banUsername(p.getName(), kickMessage, "AutoEject", expires);
                p.kickPlayer(kickMessage);

                break;
            }
            case STRIKE_TWO:
            {
                Calendar c = new GregorianCalendar();
                c.add(Calendar.MINUTE, 3);
                Date expires = c.getTime();

                TFM_Util.bcastMsg(ChatColor.RED + p.getName() + " has been banned for 3 minutes.");

                TFM_Util.banIP(player_ip, kickMessage, "AutoEject", expires);
                TFM_Util.banUsername(p.getName(), kickMessage, "AutoEject", expires);
                p.kickPlayer(kickMessage);

                break;
            }
            case STRIKE_THREE:
            {
                //Bukkit.banIP(player_ip);
                TFM_Util.banIP(player_ip, kickMessage, "AutoEject", null);
                String[] ip_address_parts = player_ip.split("\\.");
                //Bukkit.banIP();
                TFM_Util.banIP(ip_address_parts[0] + "." + ip_address_parts[1] + ".*.*", kickMessage, "AutoEject", null);

                //p.setBanned(true);
                TFM_Util.banUsername(p.getName(), kickMessage, "AutoEject", null);

                TFM_Util.bcastMsg(ChatColor.RED + p.getName() + " has been banned permanently.");

                p.kickPlayer(kickMessage);

                break;
            }
        }
    }

    public static void generateFlatlands()
    {
        generateFlatlands(TotalFreedomMod.flatlandsGenerationParams);
    }

    public static void generateFlatlands(String genParams)
    {
        WorldCreator flatlands = new WorldCreator("flatlands");
        flatlands.generateStructures(false);
        flatlands.type(WorldType.NORMAL);
        flatlands.environment(World.Environment.NORMAL);
        flatlands.generator(new CleanroomChunkGenerator(genParams));
        Bukkit.getServer().createWorld(flatlands);
    }

    @Deprecated
    public static boolean isSuperadminImpostor(CommandSender user)
    {
        return TFM_SuperadminList.isSuperadminImpostor(user);
    }

    public static String getRank(CommandSender sender)
    {
        if (TFM_SuperadminList.isSuperadminImpostor(sender))
        {
            return "an " + ChatColor.YELLOW + ChatColor.UNDERLINE + "impostor" + ChatColor.RESET + ChatColor.AQUA + "!";
        }

        TFM_Superadmin admin_entry = TFM_SuperadminList.getAdminEntry(sender.getName());

        if (admin_entry != null)
        {
            if (admin_entry.isActivated())
            {
                String custom_login_message = admin_entry.getCustomLoginMessage();

                if (custom_login_message != null)
                {
                    if (!custom_login_message.isEmpty())
                    {
                        return ChatColor.translateAlternateColorCodes('&', custom_login_message);
                    }
                }

                if (admin_entry.isSeniorAdmin())
                {
                    return "a " + ChatColor.LIGHT_PURPLE + "Senior Admin" + ChatColor.AQUA + ".";
                }
                else
                {
                    return "a " + ChatColor.GOLD + "Super Admin" + ChatColor.AQUA + ".";
                }
            }
        }

        if (sender.isOp())
        {
            return "an " + ChatColor.DARK_GREEN + "OP" + ChatColor.AQUA + ".";
        }

        return "a " + ChatColor.GREEN + "non-OP" + ChatColor.AQUA + ".";
    }

    public static void banUsername(String name, String reason, String source, Date expire_date)
    {
        name = name.toLowerCase().trim();

        BanEntry ban_entry = new BanEntry(name);

        if (expire_date != null)
        {
            ban_entry.setExpires(expire_date);
        }
        if (reason != null)
        {
            ban_entry.setReason(reason);
        }
        if (source != null)
        {
            ban_entry.setSource(source);
        }

        BanList nameBans = MinecraftServer.getServer().getServerConfigurationManager().getNameBans();

        nameBans.add(ban_entry);
    }

    public static void unbanUsername(String name)
    {
        name = name.toLowerCase().trim();

        BanList nameBans = MinecraftServer.getServer().getServerConfigurationManager().getNameBans();

        nameBans.remove(name);
    }

    public static boolean isNameBanned(String name)
    {
        name = name.toLowerCase().trim();
        BanList nameBans = MinecraftServer.getServer().getServerConfigurationManager().getNameBans();
        nameBans.removeExpired();
        return nameBans.getEntries().containsKey(name);
    }

    public static void banIP(String ip, String reason, String source, Date expire_date)
    {
        ip = ip.toLowerCase().trim();

        BanEntry ban_entry = new BanEntry(ip);

        if (expire_date != null)
        {
            ban_entry.setExpires(expire_date);
        }
        if (reason != null)
        {
            ban_entry.setReason(reason);
        }
        if (source != null)
        {
            ban_entry.setSource(source);
        }

        BanList ipBans = MinecraftServer.getServer().getServerConfigurationManager().getIPBans();

        ipBans.add(ban_entry);
    }

    public static void unbanIP(String ip)
    {
        ip = ip.toLowerCase().trim();
        BanList ipBans = MinecraftServer.getServer().getServerConfigurationManager().getIPBans();
        ipBans.remove(ip);
    }

    public static boolean isIPBanned(String ip)
    {
        ip = ip.toLowerCase().trim();
        BanList ipBans = MinecraftServer.getServer().getServerConfigurationManager().getIPBans();
        ipBans.removeExpired();
        return ipBans.getEntries().containsKey(ip);
    }

    public static Date parseDateOffset(String time)
    {
        Pattern timePattern = Pattern.compile(
                "(?:([0-9]+)\\s*y[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*mo[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*w[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*d[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*h[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*m[a-z]*[,\\s]*)?"
                + "(?:([0-9]+)\\s*(?:s[a-z]*)?)?", Pattern.CASE_INSENSITIVE);
        Matcher m = timePattern.matcher(time);
        int years = 0;
        int months = 0;
        int weeks = 0;
        int days = 0;
        int hours = 0;
        int minutes = 0;
        int seconds = 0;
        boolean found = false;
        while (m.find())
        {
            if (m.group() == null || m.group().isEmpty())
            {
                continue;
            }
            for (int i = 0; i < m.groupCount(); i++)
            {
                if (m.group(i) != null && !m.group(i).isEmpty())
                {
                    found = true;
                    break;
                }
            }
            if (found)
            {
                if (m.group(1) != null && !m.group(1).isEmpty())
                {
                    years = Integer.parseInt(m.group(1));
                }
                if (m.group(2) != null && !m.group(2).isEmpty())
                {
                    months = Integer.parseInt(m.group(2));
                }
                if (m.group(3) != null && !m.group(3).isEmpty())
                {
                    weeks = Integer.parseInt(m.group(3));
                }
                if (m.group(4) != null && !m.group(4).isEmpty())
                {
                    days = Integer.parseInt(m.group(4));
                }
                if (m.group(5) != null && !m.group(5).isEmpty())
                {
                    hours = Integer.parseInt(m.group(5));
                }
                if (m.group(6) != null && !m.group(6).isEmpty())
                {
                    minutes = Integer.parseInt(m.group(6));
                }
                if (m.group(7) != null && !m.group(7).isEmpty())
                {
                    seconds = Integer.parseInt(m.group(7));
                }
                break;
            }
        }
        if (!found)
        {
            return null;
        }

        Calendar c = new GregorianCalendar();

        if (years > 0)
        {
            c.add(Calendar.YEAR, years);
        }
        if (months > 0)
        {
            c.add(Calendar.MONTH, months);
        }
        if (weeks > 0)
        {
            c.add(Calendar.WEEK_OF_YEAR, weeks);
        }
        if (days > 0)
        {
            c.add(Calendar.DAY_OF_MONTH, days);
        }
        if (hours > 0)
        {
            c.add(Calendar.HOUR_OF_DAY, hours);
        }
        if (minutes > 0)
        {
            c.add(Calendar.MINUTE, minutes);
        }
        if (seconds > 0)
        {
            c.add(Calendar.SECOND, seconds);
        }

        return c.getTime();
    }

    public static String playerListToNames(Set<OfflinePlayer> players)
    {
        List<String> player_names = new ArrayList<String>();
        for (OfflinePlayer p : players)
        {
            player_names.add(p.getName());
        }
        return StringUtils.join(player_names, ", ");
    }

    @SuppressWarnings("unchecked")
    public static Map<String, Boolean> getSavedFlags()
    {
        Map<String, Boolean> saved_flags = null;

        File input_file = new File(TotalFreedomMod.plugin.getDataFolder(), TotalFreedomMod.SAVED_FLAGS_FILE);
        if (input_file.exists())
        {
            try
            {
                FileInputStream fis = new FileInputStream(input_file);
                ObjectInputStream ois = new ObjectInputStream(fis);
                saved_flags = (HashMap<String, Boolean>) ois.readObject();
                ois.close();
                fis.close();
            }
            catch (Exception ex)
            {
                TFM_Log.severe(ex);
            }
        }

        return saved_flags;
    }

    public static boolean getSavedFlag(String flag) throws Exception
    {
        Boolean flag_value = null;

        Map<String, Boolean> saved_flags = TFM_Util.getSavedFlags();

        if (saved_flags != null)
        {
            if (saved_flags.containsKey(flag))
            {
                flag_value = saved_flags.get(flag);
            }
        }

        if (flag_value != null)
        {
            return flag_value.booleanValue();
        }
        else
        {
            throw new Exception();
        }
    }

    public static void setSavedFlag(String flag, boolean value)
    {
        Map<String, Boolean> saved_flags = TFM_Util.getSavedFlags();

        if (saved_flags == null)
        {
            saved_flags = new HashMap<String, Boolean>();
        }

        saved_flags.put(flag, value);

        try
        {
            FileOutputStream fos = new FileOutputStream(new File(TotalFreedomMod.plugin.getDataFolder(), TotalFreedomMod.SAVED_FLAGS_FILE));
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeObject(saved_flags);
            oos.close();
            fos.close();
        }
        catch (Exception ex)
        {
            TFM_Log.severe(ex);
        }
    }

    public static void wipeFlatlandsIfFlagged()
    {
        boolean do_wipe_flatlands = false;
        try
        {
            do_wipe_flatlands = TFM_Util.getSavedFlag("do_wipe_flatlands");
        }
        catch (Exception ex)
        {
        }

        if (do_wipe_flatlands)
        {
            if (Bukkit.getServer().getWorld("flatlands") == null)
            {
                TFM_Log.info("Wiping flaglands.");

                TFM_Util.setSavedFlag("do_wipe_flatlands", false);

                File flatlands_folder = new File("./flatlands");

                if (flatlands_folder.exists())
                {
                    TFM_Util.deleteFolder(flatlands_folder);
                }
            }
            else
            {
                TFM_Log.severe("Can't wipe flatlands, it is already loaded.");
            }
        }
    }
    public static String DATE_STORAGE_FORMAT = "EEE, d MMM yyyy HH:mm:ss Z";

    public static String dateToString(Date date)
    {
        return new SimpleDateFormat(DATE_STORAGE_FORMAT, Locale.ENGLISH).format(date);
    }

    public static Date stringToDate(String date_str)
    {
        try
        {
            return new SimpleDateFormat(DATE_STORAGE_FORMAT, Locale.ENGLISH).parse(date_str);
        }
        catch (ParseException ex)
        {
            return new Date(0L);
        }
    }

    public static boolean isFromHostConsole(String sender_name)
    {
        return TotalFreedomMod.host_sender_names.contains(sender_name.toLowerCase());
    }

    public static List<String> removeDuplicates(List<String> old_list)
    {
        List<String> new_list = new ArrayList<String>();
        for (String entry : old_list)
        {
            if (!new_list.contains(entry))
            {
                new_list.add(entry);
            }
        }
        return new_list;
    }

    public static boolean fuzzyIpMatch(String a, String b, int required_octets)
    {
        boolean is_match = true;

        String[] a_parts = a.split("\\.");
        String[] b_parts = b.split("\\.");

        if (a_parts.length != 4 || b_parts.length != 4)
        {
            return false;
        }

        if (required_octets > 4)
        {
            required_octets = 4;
        }
        else if (required_octets < 1)
        {
            required_octets = 1;
        }

        for (int i = 0; i < required_octets && i < 4; i++)
        {
            if (a_parts[i].equals("*") || b_parts[i].equals("*"))
            {
                continue;
            }

            if (!a_parts[i].equals(b_parts[i]))
            {
                is_match = false;
                break;
            }
        }

        return is_match;
    }

    public static int replaceBlocks(Location center_location, Material from_material, Material to_material, int radius)
    {
        int affected = 0;

        Block center_block = center_location.getBlock();
        for (int x_offset = -radius; x_offset <= radius; x_offset++)
        {
            for (int y_offset = -radius; y_offset <= radius; y_offset++)
            {
                for (int z_offset = -radius; z_offset <= radius; z_offset++)
                {
                    Block test_block = center_block.getRelative(x_offset, y_offset, z_offset);

                    if (test_block.getType().equals(from_material))
                    {
                        if (test_block.getLocation().distanceSquared(center_location) < (radius * radius))
                        {
                            test_block.setType(to_material);
                            affected++;
                        }
                    }
                }
            }
        }

        return affected;
    }

    public static void downloadFile(String url, File output_file) throws Exception
    {
        URL website = new URL(url);
        ReadableByteChannel rbc = Channels.newChannel(website.openStream());
        FileOutputStream fos = new FileOutputStream(output_file);
        fos.getChannel().transferFrom(rbc, 0, 1 << 24);
        fos.close();
    }
    public static void AdminChatMessage(CommandSender sender, String message, boolean senderIsConsole)
    {
        // complicated magic
        String name = sender.getName()+
                    (senderIsConsole ? ChatColor.DARK_PURPLE+" (Console)" :
                    (TFM_SuperadminList.isSeniorAdmin(sender) ? ChatColor.LIGHT_PURPLE+ " (SrA)" : ChatColor.GOLD+" (SA)"));
        
        TFM_Log.info("[ADMIN] " + name + ": " + message);
        for(Player p : Bukkit.getOnlinePlayers())
        {
            if(TFM_SuperadminList.isUserSuperadmin(p))
            {
                p.sendMessage("[" + ChatColor.AQUA + "ADMIN" + ChatColor.WHITE + "] " + ChatColor.DARK_RED + name + ChatColor.WHITE + ": " + ChatColor.AQUA + message);
            }
        }
    }
}