io.netty.handler.codec.socks.SocksAuthRequest Maven / Gradle / Ivy
/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 io.netty.handler.codec.socks;
import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;
import java.nio.charset.CharsetEncoder;
/**
* An socks auth request.
*
* @see SocksAuthResponse
* @see SocksAuthRequestDecoder
*/
public final class SocksAuthRequest extends SocksRequest {
private static final CharsetEncoder asciiEncoder = CharsetUtil.getEncoder(CharsetUtil.US_ASCII);
private static final SocksSubnegotiationVersion SUBNEGOTIATION_VERSION = SocksSubnegotiationVersion.AUTH_PASSWORD;
private final String username;
private final String password;
public SocksAuthRequest(String username, String password) {
super(SocksRequestType.AUTH);
if (username == null) {
throw new NullPointerException("username");
}
if (password == null) {
throw new NullPointerException("username");
}
if (!asciiEncoder.canEncode(username) || !asciiEncoder.canEncode(password)) {
throw new IllegalArgumentException(" username: " + username + " or password: " + password +
" values should be in pure ascii");
}
if (username.length() > 255) {
throw new IllegalArgumentException(username + " exceeds 255 char limit");
}
if (password.length() > 255) {
throw new IllegalArgumentException(password + " exceeds 255 char limit");
}
this.username = username;
this.password = password;
}
/**
* Returns username that needs to be authenticated
*
* @return username that needs to be authenticated
*/
public String username() {
return username;
}
/**
* Returns password that needs to be validated
*
* @return password that needs to be validated
*/
public String password() {
return password;
}
@Override
public void encodeAsByteBuf(ByteBuf byteBuf) {
byteBuf.writeByte(SUBNEGOTIATION_VERSION.byteValue());
byteBuf.writeByte(username.length());
byteBuf.writeBytes(username.getBytes(CharsetUtil.US_ASCII));
byteBuf.writeByte(password.length());
byteBuf.writeBytes(password.getBytes(CharsetUtil.US_ASCII));
}
}