Netty代理服务器引发的NotSslRecordException异常

时间：2019-04-23 16:47:40

标签： ssl netty

我正在将本地Netty服务器连接到远程https服务器以代理请求。

public class CustomInitializer extends ChannelInitializer<SocketChannel> {

    @Autowired(required = false)
    private SslContext sslContext;


    @Override
    public void initChannel(SocketChannel ch) {
        ChannelPipeline p = ch.pipeline();
        if (sslContext != null) {
            p.addLast(sslContext.newHandler(ch.alloc()));
        }
        p.addLast(new LoggingHandler(LogLevel.INFO));
        p.addLast(new HttpClientCodec());
        p.addLast(new HttpObjectAggregator(8*1024, true));
        p.addLast(new MyCustomHandler());
    }
}

这是我创建ssLcontext bean的方式

@Bean
    public SslContext sslContext(@Value("${tcp.ssl}") boolean ssl) throws SSLException, CertificateException {
        SslContext sslContext = null;
        if (ssl) {
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            sslContext = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
        }
        return sslContext;
    }

当我访问本地主机时，它应该代理到后端。我得到以下异常。但是，如果关闭SSL并连接到远程服务器（该本地服务器在其他端口上运行），则可以正常工作

io.netty.handler.codec.DecoderException: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: dsffddfs
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:459)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:647)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:547)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:501)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:461)
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:834)
io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: thjhjhhj     at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1178)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1243)
    at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:489)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:428)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:647)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:547)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:501)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:461)
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:834)
io.netty.handler.codec.DecoderException: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: tyuuiiio
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:459)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:647)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:547)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:501)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:461)
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: 678900
    at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1178)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1243)
    at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:489)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:428)
    ... 16 more

编辑

已添加日志

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1 个答案:

答案 0 :(得分：1)

当您收到NotSslRecordException异常时，最好的起点是错误之后的字节随机blob。

您的“ blob”以以下字节开头：504f5354...

在converting十六进制数据返回到字符串之后，您将得到50 = P，4f = O，53 = { {1}}，S = 54，最终结果：T

由于我们现在将二进制Blob的开头转换为字符串，因此现在我们需要弄清楚哪些协议使用了这些“魔术字符串”。我们不必花很多时间，它是POST，您不能使用HTTP Request来接收它。

解决方案很简单，使用HTTPS而不是https连接到服务器：

https://localhost:8080/

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