/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.security;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.io.crypto.aes.CryptoAES;
/**
* Unwrap messages with Crypto AES. Should be placed after a
* {@link io.netty.handler.codec.LengthFieldBasedFrameDecoder}
*/
@InterfaceAudience.Private
public class CryptoAESUnwrapHandler extends SimpleChannelInboundHandler<ByteBuf> {
private final CryptoAES cryptoAES;
public CryptoAESUnwrapHandler(CryptoAES cryptoAES) {
this.cryptoAES = cryptoAES;
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
byte[] bytes = new byte[msg.readableBytes()];
msg.readBytes(bytes);
ctx.fireChannelRead(Unpooled.wrappedBuffer(cryptoAES.unwrap(bytes, 0, bytes.length)));
}
}