content: /**
   * This file is part of Aion-Lightning <aion-lightning.org>.
   *
   *  Aion-Lightning is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  Aion-Lightning is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details. *
   *  You should have received a copy of the GNU General Public License
   *  along with Aion-Lightning.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  package com.aionemu.gameserver.network.aion.clientpackets;
  
  import com.aionemu.gameserver.configs.main.SecurityConfig;
  import com.aionemu.gameserver.model.gameobjects.player.Player;
  import com.aionemu.gameserver.network.aion.AionClientPacket;
  import com.aionemu.gameserver.network.aion.AionConnection.State;
  import com.aionemu.gameserver.network.aion.serverpackets.SM_PONG;
  import com.aionemu.gameserver.utils.PacketSendUtility;
  import com.aionemu.gameserver.utils.audit.AuditLogger;
  
  /**
   * @author -Nemesiss- modified by Undertrey
   */
  public class CM_PING extends AionClientPacket {
  
  	/**
  	 * Constructs new instance of <tt>CM_PING </tt> packet
  	 *
  	 * @param opcode
  	 */
  	public CM_PING(int opcode, State state, State... restStates) {
  		super(opcode, state, restStates);
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	protected void readImpl() {
  		readH(); // unk
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	protected void runImpl() {
  		Player player = getConnection().getActivePlayer();
  		long lastMS = getConnection().getLastPingTimeMS();
  
  		if (lastMS > 0 && player != null) {
  			long pingInterval = System.currentTimeMillis() - lastMS;
  			// PingInterval should be 3min (180000ms)
  			if (pingInterval < SecurityConfig.PING_INTERVAL * 1000 && SecurityConfig.SECURITY_ENABLE) // client timer cheat
  			{
  				AuditLogger.info(player, "Possible client timer cheat kicking player: " + pingInterval + ", ip=" + getConnection().getIP());
  				PacketSendUtility.sendMessage(player, "You have been triggered Speed Hack detection so you're disconnected.");
  				getConnection().closeNow();
  			}
  		}
  		getConnection().setLastPingTimeMS(System.currentTimeMillis());
  		sendPacket(new SM_PONG());
  	}
  }
  