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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 init response.
23   *
24   * @see SocksInitRequest
25   * @see SocksInitResponseDecoder
26   */
27  public final class SocksInitResponse extends SocksResponse {
28      private final SocksAuthScheme authScheme;
29  
30      public SocksInitResponse(SocksAuthScheme authScheme) {
31          super(SocksResponseType.INIT);
32          this.authScheme = ObjectUtil.checkNotNull(authScheme, "authScheme");
33      }
34  
35      /**
36       * Returns the {@link SocksAuthScheme} of this {@link SocksInitResponse}
37       *
38       * @return The {@link SocksAuthScheme} of this {@link SocksInitResponse}
39       */
40      public SocksAuthScheme authScheme() {
41          return authScheme;
42      }
43  
44      @Override
45      public void encodeAsByteBuf(ByteBuf byteBuf) {
46          byteBuf.writeByte(protocolVersion().byteValue());
47          byteBuf.writeByte(authScheme.byteValue());
48      }
49  }