org.apache.hadoop.hdfs.web

Class AuthFilter

java.lang.Object

org.apache.hadoop.security.authentication.server.AuthenticationFilter

org.apache.hadoop.hdfs.web.AuthFilter

All Implemented Interfaces:

javax.servlet.Filter

public class AuthFilter
extends AuthenticationFilter

Subclass of AuthenticationFilter that obtains Hadoop-Auth configuration for webhdfs.

Field Summary

Fields inherited from class org.apache.hadoop.security.authentication.server.AuthenticationFilter

AUTH_TOKEN_VALIDITY, AUTH_TYPE, CONFIG_PREFIX, COOKIE_DOMAIN, COOKIE_PATH, SIGNATURE_SECRET

Constructor Summary

Constructors

Constructor and Description
AuthFilter()

Method Summary

Methods

Modifier and Type	Method and Description
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain filterChain) If the request has a valid authentication token it allows the request to continue to the target resource, otherwise it triggers an authentication sequence using the configured AuthenticationHandler.
protected Properties	getConfiguration(String prefix, javax.servlet.FilterConfig config) Returns the filter configuration properties, including the ones prefixed with CONF_PREFIX.

Methods inherited from class org.apache.hadoop.security.authentication.server.AuthenticationFilter

createCookie, destroy, getAuthenticationHandler, getCookieDomain, getCookiePath, getRequestURL, getToken, getValidity, init, isRandomSecret

Methods inherited from class java.lang.Object

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

Constructor Detail

AuthFilter

public AuthFilter()

Method Detail

getConfiguration

protected Properties getConfiguration(String prefix,
                          javax.servlet.FilterConfig config)
                               throws javax.servlet.ServletException

Returns the filter configuration properties, including the ones prefixed with CONF_PREFIX. The prefix is removed from the returned property names.

Overrides:

getConfiguration in class AuthenticationFilter

Parameters:

prefix - parameter not used.

config - parameter contains the initialization values.

Returns:

Hadoop-Auth configuration properties.

Throws:

javax.servlet.ServletException

doFilter

public void doFilter(javax.servlet.ServletRequest request,
            javax.servlet.ServletResponse response,
            javax.servlet.FilterChain filterChain)
              throws IOException,
                     javax.servlet.ServletException

Description copied from class: AuthenticationFilter

If the request has a valid authentication token it allows the request to continue to the target resource, otherwise it triggers an authentication sequence using the configured AuthenticationHandler.

Specified by:

doFilter in interface javax.servlet.Filter

Overrides:

doFilter in class AuthenticationFilter

Parameters:

request - the request object.

response - the response object.

filterChain - the filter chain object.

Throws:

IOException - thrown if an IO error occurred.

javax.servlet.ServletException - thrown if a processing error occurred.