org.diorite.impl.connection.packets.PacketEncryptor.java Source code

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Here is the source code for org.diorite.impl.connection.packets.PacketEncryptor.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016. Diorite (by Bartomiej Mazur (aka GotoFinal))
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package org.diorite.impl.connection.packets;

import javax.crypto.Cipher;

import java.util.List;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageCodec;

public class PacketEncryptor extends ByteToMessageCodec<ByteBuf> {
    private final PacketEncryptionHandler handler1;
    private final PacketEncryptionHandler handler2;

    public PacketEncryptor(final Cipher cipher1, final Cipher cipher2) {
        this.handler1 = new PacketEncryptionHandler(cipher1);
        this.handler2 = new PacketEncryptionHandler(cipher2);
    }

    @Override
    protected void encode(final ChannelHandlerContext channelHandlerContext, final ByteBuf srcByteBuf,
            final ByteBuf byteBuf) throws Exception {
        this.handler1.copy(srcByteBuf, byteBuf);
    }

    @Override
    protected void decode(final ChannelHandlerContext channelHandlerContext, final ByteBuf byteBuf,
            final List<Object> list) throws Exception {
        list.add(this.handler2.handle(channelHandlerContext, byteBuf));
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("handler1", this.handler1)
                .append("handler2", this.handler2).toString();
    }
}