org.springframework.security.web.authentication
Class LoginUrlAuthenticationEntryPoint

java.lang.Object
  extended by org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint
All Implemented Interfaces:
InitializingBean, AuthenticationEntryPoint

public class LoginUrlAuthenticationEntryPoint
extends Object
implements AuthenticationEntryPoint, InitializingBean

Used by the ExceptionTranslationFilter to commence a form login authentication via the UsernamePasswordAuthenticationFilter.

Holds the location of the login form in the loginFormUrl property, and uses that to build a redirect URL to the login page. Alternatively, an absolute URL can be set in this property and that will be used exclusively.

When using a relative URL, you can set the forceHttps property to true, to force the protocol used for the login form to be HTTPS, even if the original intercepted request for a resource used the HTTP protocol. When this happens, after a successful login (via HTTPS), the original resource will still be accessed as HTTP, via the original request URL. For the forced HTTPS feature to work, the PortMapper is consulted to determine the HTTP:HTTPS pairs. The value of forceHttps will have no effect if an absolute URL is used.

Since:
3.0

Constructor Summary
LoginUrlAuthenticationEntryPoint()
          Deprecated. Use constructor injection
LoginUrlAuthenticationEntryPoint(String loginFormUrl)
           
 
Method Summary
 void afterPropertiesSet()
           
protected  String buildHttpsRedirectUrlForRequest(javax.servlet.http.HttpServletRequest request)
          Builds a URL to redirect the supplied request to HTTPS.
protected  String buildRedirectUrlToLoginPage(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, AuthenticationException authException)
           
 void commence(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, AuthenticationException authException)
          Performs the redirect (or forward) to the login form URL.
protected  String determineUrlToUseForThisRequest(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, AuthenticationException exception)
          Allows subclasses to modify the login form URL that should be applicable for a given request.
 String getLoginFormUrl()
           
protected  PortMapper getPortMapper()
           
protected  PortResolver getPortResolver()
           
protected  boolean isForceHttps()
           
protected  boolean isUseForward()
           
 void setForceHttps(boolean forceHttps)
          Set to true to force login form access to be via https.
 void setLoginFormUrl(String loginFormUrl)
          Deprecated. use constructor injection
 void setPortMapper(PortMapper portMapper)
           
 void setPortResolver(PortResolver portResolver)
           
 void setUseForward(boolean useForward)
          Tells if we are to do a forward to the loginFormUrl using the RequestDispatcher, instead of a 302 redirect.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LoginUrlAuthenticationEntryPoint

@Deprecated
public LoginUrlAuthenticationEntryPoint()
Deprecated. Use constructor injection


LoginUrlAuthenticationEntryPoint

public LoginUrlAuthenticationEntryPoint(String loginFormUrl)
Parameters:
loginFormUrl - URL where the login page can be found. Should either be relative to the web-app context path (include a leading /) or an absolute URL.
Method Detail

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception
Specified by:
afterPropertiesSet in interface InitializingBean
Throws:
Exception

determineUrlToUseForThisRequest

protected String determineUrlToUseForThisRequest(javax.servlet.http.HttpServletRequest request,
                                                 javax.servlet.http.HttpServletResponse response,
                                                 AuthenticationException exception)
Allows subclasses to modify the login form URL that should be applicable for a given request.

Parameters:
request - the request
response - the response
exception - the exception
Returns:
the URL (cannot be null or empty; defaults to getLoginFormUrl())

commence

public void commence(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response,
                     AuthenticationException authException)
              throws IOException,
                     javax.servlet.ServletException
Performs the redirect (or forward) to the login form URL.

Specified by:
commence in interface AuthenticationEntryPoint
Parameters:
request - that resulted in an AuthenticationException
response - so that the user agent can begin authentication
authException - that caused the invocation
Throws:
IOException
javax.servlet.ServletException

buildRedirectUrlToLoginPage

protected String buildRedirectUrlToLoginPage(javax.servlet.http.HttpServletRequest request,
                                             javax.servlet.http.HttpServletResponse response,
                                             AuthenticationException authException)

buildHttpsRedirectUrlForRequest

protected String buildHttpsRedirectUrlForRequest(javax.servlet.http.HttpServletRequest request)
                                          throws IOException,
                                                 javax.servlet.ServletException
Builds a URL to redirect the supplied request to HTTPS. Used to redirect the current request to HTTPS, before doing a forward to the login page.

Throws:
IOException
javax.servlet.ServletException

setForceHttps

public void setForceHttps(boolean forceHttps)
Set to true to force login form access to be via https. If this value is true (the default is false), and the incoming request for the protected resource which triggered the interceptor was not already https, then the client will first be redirected to an https URL, even if serverSideRedirect is set to true.


isForceHttps

protected boolean isForceHttps()

setLoginFormUrl

@Deprecated
public void setLoginFormUrl(String loginFormUrl)
Deprecated. use constructor injection

The URL where the UsernamePasswordAuthenticationFilter login page can be found. Should either be relative to the web-app context path (include a leading /) or an absolute URL.


getLoginFormUrl

public String getLoginFormUrl()

setPortMapper

public void setPortMapper(PortMapper portMapper)

getPortMapper

protected PortMapper getPortMapper()

setPortResolver

public void setPortResolver(PortResolver portResolver)

getPortResolver

protected PortResolver getPortResolver()

setUseForward

public void setUseForward(boolean useForward)
Tells if we are to do a forward to the loginFormUrl using the RequestDispatcher, instead of a 302 redirect.

Parameters:
useForward - true if a forward to the login page should be used. Must be false (the default) if loginFormUrl is set to an absolute value.

isUseForward

protected boolean isUseForward()