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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   https://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.handler.codec.socks;
17  
18  import io.netty.buffer.ByteBuf;
19  import io.netty.util.internal.ObjectUtil;
20  
21  /**
22   * An socks auth response.
23   *
24   * @see SocksAuthRequest
25   * @see SocksAuthResponseDecoder
26   */
27  public final class SocksAuthResponse extends SocksResponse {
28      private static final SocksSubnegotiationVersion SUBNEGOTIATION_VERSION = SocksSubnegotiationVersion.AUTH_PASSWORD;
29      private final SocksAuthStatus authStatus;
30  
31      public SocksAuthResponse(SocksAuthStatus authStatus) {
32          super(SocksResponseType.AUTH);
33          this.authStatus = ObjectUtil.checkNotNull(authStatus, "authStatus");
34      }
35  
36      /**
37       * Returns the {@link SocksAuthStatus} of this {@link SocksAuthResponse}
38       *
39       * @return The {@link SocksAuthStatus} of this {@link SocksAuthResponse}
40       */
41      public SocksAuthStatus authStatus() {
42          return authStatus;
43      }
44  
45      @Override
46      public void encodeAsByteBuf(ByteBuf byteBuf) {
47          byteBuf.writeByte(SUBNEGOTIATION_VERSION.byteValue());
48          byteBuf.writeByte(authStatus.byteValue());
49      }
50  }