SYIPKPKER Blocker - By Kevin

Newbie Posts : 2 Join date : 2007-09-14

Please Note: This was made in a Project16 source.

Purpose: To block those pesky attackers

Time to complete: 1 minute 11 seconds

Classes Modified: BanManager.java and server.java

Credits: 100% Kevin, 0% Guthan

Procedure:

Create a new java file by the name of "BanManager".

Put this in it:

Code:: import java.util.ArrayList;

public class BanManager

// Made by Kevin - Rune-Server.org

public final static void Initialize()
{
AddName("SYIpkpker");
AddName("SilabSoft");
AddName("runescape");
AddName("thorak");

// AddAddress("127.0.0.1"); // Example :P
}

public final static void AddName(String Name)
{
Names.add(Name.toLowerCase());
}

public final static boolean BannedName(String _Name)
{
_Name = _Name.toLowerCase();

for(String Name : Names)
if(_Name.contains(Name))
return true;

for(Character c : _Name.toCharArray()) // <3 Silabsoft
if(!Character.isLetterOrDigit(c))
if(!Character.isSpaceChar(c))
return true;

return false;
}

public final static void AddAddress(String Address)
{
Addresses.add(Address.toLowerCase());
}

public final static boolean BannedAddress(String _Address)
{
_Address = _Address.toLowerCase();

for(String Address : Addresses)
if(Address.equals(_Address))
return true;

return false;
}

public static ArrayList<String> Names = new ArrayList<String>();
public static ArrayList<String> Addresses = new ArrayList<String>();
}

de:
That will allow access once by the specified name in the Initialize method.

Now go close and save that class and go to server.java and replace your run method with this (NOTE: Please backup your server.java.):

Code:: public void run()
{
try
{
   shutdownClientHandler = false;
   clientListener = new java.net.ServerSocket(serverlistenerPort, 1, null);
      misc.println("NAME OF SERVER HERE");

      while(true)
      {
      java.net.Socket s = clientListener.accept();
         s.setTcpNoDelay(true);

      String connectingAddress = s.getInetAddress().getHostAddress(); // Hostnames are too long, lets use ips :) - Kevin - Rune-Server.org

         if(clientListener != null)
         {
         if(!BanManager.BannedAddress(connectingAddress)) // Is ip banned? - Kevin - Rune-Server.org
         {
            misc.println("ClientHandler: Accepted from "+connectingAddress+":"+s.getPort());
            playerHandler.newPlayerClient(s, connectingAddress);
         }
         else
         {
            misc.println("ClientHandler: Rejected from "+connectingAddress+":"+s.getPort());
            s.close(); // Ip is banned, lets simply refuse the connection - Kevin - Rune-Server.org
         }
         }
      }
   } catch(java.io.IOException ioe) {
      if(!shutdownClientHandler) {
         misc.println("Error: Unable to startup listener on "+serverlistenerPort+" - port already in use?");
      } else {
         misc.println("ClientHandler was shut down.");
      }
   }
}

While still in server.java, under this:

Code:: int waitFails = 0;
   long lastTicks = System.currentTimeMillis();
   long totalTimeSpentProcessing = 0;
   int cycle = 0;

Put this:

Code:: BanManager.Initialize(); // Initialize Kevin's BanManager - Rune-Server.org

Save and close server.java and go to client.java, under this:

Code:: playerName = inStream.readString();
playerName.toLowerCase();
if(playerName == null || playerName.length() == 0)
disconnected = true;

Put this:

Code:: if(BanManager.BannedName(playerName)) // Is username illegal or banned? - Kevin - Rune-Server.org
{
BanManager.AddAddress(connectedFrom); // Ban the bad user - Kevin - Rune-Server.org
disconnected = true;
return;
}

- By Kevin.

Subject: Re: SYIPKPKER Blocker - By Kevin Fri Sep 14, 2007 6:03 am

looks like a copy and paste but this is helpful ive seen that syipker he is extremly anoying he logs onto like 100s of accounts on the server and logs them out so there nulls (lags the server)