Package org.glassfish.grizzly.samples.simpleauth

Class ServerAuthFilter

java.lang.Object
org.glassfish.grizzly.filterchain.BaseFilter
org.glassfish.grizzly.samples.simpleauth.ServerAuthFilter
All Implemented Interfaces:
org.glassfish.grizzly.filterchain.Filter
public class ServerAuthFilter extends org.glassfish.grizzly.filterchain.BaseFilter
Server authentication filter, which intercepts client<->server communication. Filter checks, if coming message is authentication request, sent by client. If yes - the filter generated client id and sends the authentication reponse to a client. If incoming message is not authentication request - filter checks whether client connection has been authenticated. If yes - filter removes client authentication header ("auth-id: <connection-id>") from a message and pass control to a next filter in a chain, otherwise - throws an Exception.
Author:
Alexey Stashok

  • Constructor Summary

    Constructors
    Constructor
    Description
    ServerAuthFilter()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    org.glassfish.grizzly.filterchain.NextAction
    handleClose(org.glassfish.grizzly.filterchain.FilterChainContext ctx)
    The method is called, when a connection gets closed.
    org.glassfish.grizzly.filterchain.NextAction
    handleRead(org.glassfish.grizzly.filterchain.FilterChainContext ctx)
    The method is called once we have received MultiLinePacket from a client.
    org.glassfish.grizzly.filterchain.NextAction
    handleWrite(org.glassfish.grizzly.filterchain.FilterChainContext ctx)
    The method is called each time, when server sends a message to a client.

    Methods inherited from class org.glassfish.grizzly.filterchain.BaseFilter

    createContext, exceptionOccurred, handleAccept, handleConnect, handleEvent, onAdded, onFilterChainChanged, onRemoved, toString

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ServerAuthFilter

      public ServerAuthFilter()

  • Method Details

    • handleRead

      public org.glassfish.grizzly.filterchain.NextAction handleRead(org.glassfish.grizzly.filterchain.FilterChainContext ctx) throws IOException
      The method is called once we have received MultiLinePacket from a client. Filter check if incoming message is the client authentication request. If yes - we generate new client id and send it back in the authentication response. If the message is not authentication request - we check message authentication header to correspond to a connection id in the authenticated clients map. If it's ok - the filter removes authentication header from the message and pass the message to a next filter in a filter chain, otherwise, if authentication failed - the filter throws an Exception
      Specified by:
      handleRead in interface org.glassfish.grizzly.filterchain.Filter
      Overrides:
      handleRead in class org.glassfish.grizzly.filterchain.BaseFilter
      Parameters:
      ctx - Request processing context
      Returns:
      NextAction
      Throws:
      IOException

    • handleWrite

      public org.glassfish.grizzly.filterchain.NextAction handleWrite(org.glassfish.grizzly.filterchain.FilterChainContext ctx) throws IOException
      The method is called each time, when server sends a message to a client. First of all filter check if this packet is not authentication-response. If yes - filter just passes control to a next filter in a chain, if not - filter gets the client id from its local authenticated clients map and adds "auth-id: <connection-id>" header to the outgoing message and finally passes control to a next filter in a chain.
      Specified by:
      handleWrite in interface org.glassfish.grizzly.filterchain.Filter
      Overrides:
      handleWrite in class org.glassfish.grizzly.filterchain.BaseFilter
      Parameters:
      ctx - Response processing context
      Returns:
      NextAction
      Throws:
      IOException

    • handleClose

      public org.glassfish.grizzly.filterchain.NextAction handleClose(org.glassfish.grizzly.filterchain.FilterChainContext ctx) throws IOException
      The method is called, when a connection gets closed. We remove connection entry in authenticated connections map.
      Specified by:
      handleClose in interface org.glassfish.grizzly.filterchain.Filter
      Overrides:
      handleClose in class org.glassfish.grizzly.filterchain.BaseFilter
      Parameters:
      ctx - Request processing context
      Returns:
      NextAction
      Throws:
      IOException