org.apache.sshd.common.kex.extension.parser.DelayCompression Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.sshd.common.kex.extension.parser;
import java.io.IOException;
import org.apache.sshd.common.util.buffer.Buffer;
import org.apache.sshd.common.util.buffer.BufferUtils;
/**
* @author Apache MINA SSHD Project
* @see RFC-8308 - section 3.2
*/
public class DelayCompression extends AbstractKexExtensionParser {
public static final String NAME = "delay-compression";
public static final DelayCompression INSTANCE = new DelayCompression();
public DelayCompression() {
super(NAME);
}
@Override
public DelayedCompressionAlgorithms parseExtension(Buffer buffer) throws IOException {
DelayedCompressionAlgorithms algos = new DelayedCompressionAlgorithms();
algos.setClient2Server(buffer.getNameList());
algos.setServer2Client(buffer.getNameList());
return algos;
}
@Override
protected void encode(DelayedCompressionAlgorithms algos, Buffer buffer) throws IOException {
int lenPos = buffer.wpos();
buffer.putInt(0); // total length placeholder
buffer.putNameList(algos.getClient2Server());
buffer.putNameList(algos.getServer2Client());
BufferUtils.updateLengthPlaceholder(buffer, lenPos);
}
}