content: /*
   * Copyright (c) 2019 abc123lzf <abc123lzf@126.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  package com.lzf.flyingsocks.encrypt;
  
  import com.lzf.flyingsocks.Named;
  import io.netty.channel.ChannelInboundHandler;
  import io.netty.channel.ChannelOutboundHandler;
  
  import java.util.Map;
  
  /**
   * 加密、解密Handler提供者
   * 对flyingsocks客户端和服务端传输的数据进行加密
   */
  public interface EncryptProvider extends Named {
  
      /**
       * 初始化Provider
       *
       * @param params 初始化参数
       */
      void initialize(Map<String, ?> params) throws Exception;
  
      /**
       * @return 返回decodeHandler方法和encodeHandler返回的是不是同一个类型
       */
      boolean isInboundHandlerSameAsOutboundHandler();
  
      /**
       * 返回解密处理器
       *
       * @param params 参数
       * @return ChannelInboundHandler实例
       * @throws Exception 实例化过程抛出的异常
       */
      ChannelInboundHandler decodeHandler(Map<String, ?> params) throws Exception;
  
      /**
       * 返回加密处理器
       *
       * @param params 参数
       * @return ChannelOutboundHandler实例
       * @throws Exception 实例化过程抛出的一场
       */
      ChannelOutboundHandler encodeHandler(Map<String, ?> params) throws Exception;
  }
  