CipherBase.java

net.minecraft.network.CipherBase

信息

• 全限定名：net.minecraft.network.CipherBase
• 类型：public class
• 包：net.minecraft.network
• 源码路径：src/main/java/net/minecraft/network/CipherBase.java
• 起始行号：L8
• 职责：

  TODO

字段/常量

• cipher

  • 类型: Cipher
  • 修饰符: private final
  • 源码定位: L9
  • 说明:

    TODO

• heapIn

  • 类型: byte[]
  • 修饰符: private
  • 源码定位: L10
  • 说明:

    TODO

• heapOut

  • 类型: byte[]
  • 修饰符: private
  • 源码定位: L11
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

protected CipherBase(Cipher cipher) @ L13

• 构造器名：CipherBase
• 源码定位：L13
• 修饰符：protected

参数:

• cipher: Cipher

说明:

TODO

方法

下面的方法块按源码顺序生成。

private byte[] bufToByte(ByteBuf in) @ L17

• 方法名：bufToByte
• 源码定位：L17
• 返回类型：byte[]
• 修饰符：private

参数:

• in: ByteBuf

说明:

TODO

protected ByteBuf decipher(ChannelHandlerContext ctx, ByteBuf in) @ L27

• 方法名：decipher
• 源码定位：L27
• 返回类型：ByteBuf
• 修饰符：protected

参数:

• ctx: ChannelHandlerContext
• in: ByteBuf

说明:

TODO

protected void encipher(ByteBuf in, ByteBuf out) @ L35

• 方法名：encipher
• 源码定位：L35
• 返回类型：void
• 修饰符：protected

参数:

• in: ByteBuf
• out: ByteBuf

说明:

TODO

代码

public class CipherBase {
    private final Cipher cipher;
    private byte[] heapIn = new byte[0];
    private byte[] heapOut = new byte[0];
 
    protected CipherBase(Cipher cipher) {
        this.cipher = cipher;
    }
 
    private byte[] bufToByte(ByteBuf in) {
        int readableBytes = in.readableBytes();
        if (this.heapIn.length < readableBytes) {
            this.heapIn = new byte[readableBytes];
        }
 
        in.readBytes(this.heapIn, 0, readableBytes);
        return this.heapIn;
    }
 
    protected ByteBuf decipher(ChannelHandlerContext ctx, ByteBuf in) throws ShortBufferException {
        int readableBytes = in.readableBytes();
        byte[] heapIn = this.bufToByte(in);
        ByteBuf heapOut = ctx.alloc().heapBuffer(this.cipher.getOutputSize(readableBytes));
        heapOut.writerIndex(this.cipher.update(heapIn, 0, readableBytes, heapOut.array(), heapOut.arrayOffset()));
        return heapOut;
    }
 
    protected void encipher(ByteBuf in, ByteBuf out) throws ShortBufferException {
        int readableBytes = in.readableBytes();
        byte[] heapIn = this.bufToByte(in);
        int outputSize = this.cipher.getOutputSize(readableBytes);
        if (this.heapOut.length < outputSize) {
            this.heapOut = new byte[outputSize];
        }
 
        out.writeBytes(this.heapOut, 0, this.cipher.update(heapIn, 0, readableBytes, this.heapOut));
    }
}

引用的其他类

• 无