org.apache.shiro.web.filter.authc
Class UserFilter

java.lang.Object
  org.apache.shiro.web.servlet.ServletContextSupport
      org.apache.shiro.web.servlet.AbstractFilter
          org.apache.shiro.web.servlet.NameableFilter
              org.apache.shiro.web.servlet.OncePerRequestFilter
                  org.apache.shiro.web.servlet.AdviceFilter
                      org.apache.shiro.web.filter.PathMatchingFilter
                          org.apache.shiro.web.filter.AccessControlFilter
                              org.apache.shiro.web.filter.authc.UserFilter

All Implemented Interfaces:

Filter, Nameable, PathConfigProcessor

public class UserFilter
extends AccessControlFilter

Filter that allows access to resources if the accessor is a known user, which is defined as having a known principal. This means that any user who is authenticated or remembered via a 'remember me' feature will be allowed access from this filter.

If the accessor is not a known user, then they will be redirected to the loginUrl

Since:

0.9

Field Summary

Fields inherited from class org.apache.shiro.web.filter.AccessControlFilter

DEFAULT_LOGIN_URL, GET_METHOD, POST_METHOD

Fields inherited from class org.apache.shiro.web.filter.PathMatchingFilter

appliedPaths, pathMatcher

Fields inherited from class org.apache.shiro.web.servlet.OncePerRequestFilter

ALREADY_FILTERED_SUFFIX

Fields inherited from class org.apache.shiro.web.servlet.AbstractFilter

filterConfig

Constructor Summary

UserFilter()

Method Summary

protected boolean	isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) Returns true if the request is a loginRequest or if the current subject is not null, false otherwise.
protected boolean	onAccessDenied(ServletRequest request, ServletResponse response) This default implementation simply calls saveRequestAndRedirectToLogin and then immediately returns false, thereby preventing the chain from continuing so the redirect may execute.

Methods inherited from class org.apache.shiro.web.filter.AccessControlFilter

getLoginUrl, getSubject, isLoginRequest, onAccessDenied, onPreHandle, redirectToLogin, saveRequest, saveRequestAndRedirectToLogin, setLoginUrl

Methods inherited from class org.apache.shiro.web.filter.PathMatchingFilter

getPathWithinApplication, pathsMatch, pathsMatch, preHandle, processPathConfig

Methods inherited from class org.apache.shiro.web.servlet.AdviceFilter

afterCompletion, cleanup, doFilterInternal, executeChain, postHandle

Methods inherited from class org.apache.shiro.web.servlet.OncePerRequestFilter

doFilter, getAlreadyFilteredAttributeName, shouldNotFilter

Methods inherited from class org.apache.shiro.web.servlet.NameableFilter

getName, setName, toStringBuilder

Methods inherited from class org.apache.shiro.web.servlet.AbstractFilter

destroy, getFilterConfig, getInitParam, init, onFilterConfigSet, setFilterConfig

Methods inherited from class org.apache.shiro.web.servlet.ServletContextSupport

getContextAttribute, getContextInitParam, getServletContext, removeContextAttribute, setContextAttribute, setServletContext, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UserFilter

public UserFilter()

Method Detail

isAccessAllowed

protected boolean isAccessAllowed(ServletRequest request,
                                  ServletResponse response,
                                  Object mappedValue)

Returns true if the request is a loginRequest or if the current subject is not null, false otherwise.

Specified by:

isAccessAllowed in class AccessControlFilter

Parameters:

request - the incoming ServletRequest

response - the outgoing ServletResponse

mappedValue - the filter-specific config value mapped to this filter in the URL rules mappings.

Returns:

true if the request is a loginRequest or if the current subject is not null, false otherwise.

onAccessDenied

protected boolean onAccessDenied(ServletRequest request,
                                 ServletResponse response)
                          throws Exception

This default implementation simply calls saveRequestAndRedirectToLogin and then immediately returns false, thereby preventing the chain from continuing so the redirect may execute.

Specified by:

onAccessDenied in class AccessControlFilter

Parameters:

request - the incoming ServletRequest

response - the outgoing ServletResponse

Returns:

true if the request should continue to be processed; false if the subclass will handle/render the response directly.

Throws:

Exception - if there is an error processing the request.