Package google.registry.proxy.handler

Class WebWhoisRedirectHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.HttpRequest>
google.registry.proxy.handler.WebWhoisRedirectHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
public class WebWhoisRedirectHandler extends io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.HttpRequest>
Handler that redirects web WHOIS requests to a canonical website.

ICANN requires that port 43 and web-based WHOIS are both available on whois.nic.TLD. Since we expose a single IPv4/IPv6 anycast external IP address for the proxy, we need the load balancer to router port 80/443 traffic to the proxy to support web WHOIS.

HTTP (port 80) traffic is simply upgraded to HTTPS (port 443) on the same host, while HTTPS requests are redirected to the redirectHost, which is the canonical website that provide the web WHOIS service.

See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

    io.netty.channel.ChannelHandler.Sharable

  • Constructor Summary

    Constructors
    Constructor
    Description
    WebWhoisRedirectHandler(boolean isHttps, String redirectHost)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.HttpRequest msg)
     
    void
    exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
     

    Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

    acceptInboundMessage, channelRead

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

    Methods inherited from class io.netty.channel.ChannelHandlerAdapter

    ensureNotSharable, handlerAdded, handlerRemoved, isSharable

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface io.netty.channel.ChannelHandler

    handlerAdded, handlerRemoved

  • Constructor Details

    • WebWhoisRedirectHandler

      public WebWhoisRedirectHandler(boolean isHttps, String redirectHost)

  • Method Details

    • channelRead0

      protected void channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.HttpRequest msg)
      Specified by:
      channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.http.HttpRequest>

    • exceptionCaught

      public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelHandler
      Specified by:
      exceptionCaught in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter