ResourceCheck.java

package cn.liutils.check;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

import cn.annoreg.mc.SideHelper;
import cn.annoreg.mc.network.RegNetworkCall;
import cn.annoreg.mc.s11n.StorageOption.Data;
import cn.annoreg.mc.s11n.StorageOption.Instance;
import cn.annoreg.mc.s11n.StorageOption.Target;
import cn.liutils.util.generic.HashUtils;
import cn.liutils.util.generic.RegistryUtils;
import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerLoggedInEvent;
import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerLoggedOutEvent;
import cpw.mods.fml.common.gameevent.TickEvent.ServerTickEvent;
import cpw.mods.fml.relauncher.Side;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.util.ResourceLocation;

/**
 * Provides resource verification when a client connected to server
 * @author EAirPeter
 */
public final class ResourceCheck {
    
    private static final ByteBuf buf = Unpooled.buffer();
    private static final HandlerServer handler = new HandlerServer();
    
    public static void init() {
        FMLCommonHandler.instance().bus().register(handler);
    }
    
    /**
     * Add a resource which will be verified when client connected to server.
     * @param res The resource to be verified
     */
    public static void add(ResourceLocation res) {
        buf.writeInt(res.hashCode());
        buf.writeBytes(HashUtils.SHA1.hash(RegistryUtils.getResourceStream(res)));
    }
    
    @RegNetworkCall(side = Side.CLIENT)
    public static void sRequestCheck(@Target EntityPlayer player) {
        cChecklist(player, buf.array());
    }
    
    @RegNetworkCall(side = Side.SERVER)
    public static void cChecklist(@Instance EntityPlayer player, @Data byte[] data) {
        handler.processPlayer((EntityPlayerMP) player, Arrays.equals(buf.array(), data));
    }

}