We use spring security to authenticate the user based on some user data (for example, userid) coming from an external application and performing authorization using the security context holder. We use the custom implementation of AbstractAuthenticationProcessingFilter and the custom implementation of CustomAuthenticationProvider using our own UserDetailsServiceImpl embedded in the provider to retrieve user data from db.
When one user tries to log in, it works fine, an authentication object is created and correctly installed in SecurityCOntextHolder. But when another user tries to log in, the old authentication objects are overwritten by the new one. It seems that a new session is not created every time you log in.
The implementation of the filter and the provider is as follows:
public class DefaultAuthenticationProcessingFilter extends
AbstractAuthenticationProcessingFilter {
private final static Logger logger = LoggerFactory.getLogger(DefaultAuthenticationProcessingFilter.class);
private static final String INTERCEPTOR_PROCESS_URL = "/sso/landingpage.action";
public DefaultAuthenticationProcessingFilter() {
super(INTERCEPTOR_PROCESS_URL);
}
public DefaultAuthenticationProcessingFilter(
String defaultFilterProcessesUrl) {
super(defaultFilterProcessesUrl);
Assert.notNull(defaultFilterProcessesUrl, "Configuration error :: DefaultFilterProcessesUrl must be specified");
}
@Override
public Authentication attemptAuthentication(HttpServletRequest request,
HttpServletResponse response) throws AuthenticationException,
IOException, ServletException {
logger.info("Authenticating the user .....");
Authentication authResult = null;
try {
String eid = request.getParameter("EID");
if( StringUtils.isEmpty(eid)) {
throw new PreAuthenticatedCredentialsNotFoundException("EID param not found in request.");
}
String credentials = "NA";
PreAuthenticatedAuthenticationToken authRequest = new PreAuthenticatedAuthenticationToken(eid, credentials);
authRequest.setDetails(authenticationDetailsSource.buildDetails(request));
authResult = getAuthenticationManager().authenticate(authRequest);
} catch (AuthenticationException e) {
unsuccessfulAuthentication(request, response, e);
}
return authResult;
}
}
protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response,
Authentication authResult) throws IOException, ServletException {
if (logger.isDebugEnabled()) {
logger.debug("Authentication success. Updating SecurityContextHolder to contain: " + authResult);
}
SecurityContextHolder.getContext().setAuthentication(authResult);
getRememberMeServices().loginSuccess(request, response, authResult);
if (this.eventPublisher != null) {
eventPublisher.publishEvent(new InteractiveAuthenticationSuccessEvent(authResult, this.getClass()));
}
getSuccessHandler().onAuthenticationSuccess(request, response, authResult);
}
}
The custom provider implementation looks like this:
public class CustomAuthenticationProvider implements AuthenticationProvider, InitializingBean {
private final static Logger logger = LoggerFactory.getLogger(CustomAuthenticationProvider.class);
private AuthenticationUserDetailsService<PreAuthenticatedAuthenticationToken> preAuthenticatedUserDetailsService = null;
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
if (!supports(authentication.getClass())) {
return null;
}
if (logger.isDebugEnabled()) {
logger.debug("PreAuthenticated authentication request: " + authentication);
}
if (authentication.getPrincipal() == null) {
logger.debug("No pre-authenticated principal found in request.");
return null;
}
UserDetails ud = preAuthenticatedUserDetailsService.loadUserDetails((PreAuthenticatedAuthenticationToken)authentication);
PreAuthenticatedAuthenticationToken result =
new PreAuthenticatedAuthenticationToken(ud, authentication.getCredentials(), ud.getAuthorities());
result.setDetails(authentication.getDetails());
return result;
}
@Override
public void afterPropertiesSet() throws Exception {
}
@Override
public boolean supports(Class<?> authentication) {
return PreAuthenticatedAuthenticationToken.class.isAssignableFrom(authentication);
}
public AuthenticationUserDetailsService<PreAuthenticatedAuthenticationToken> getPreAuthenticatedUserDetailsService() {
return preAuthenticatedUserDetailsService;
}
public void setPreAuthenticatedUserDetailsService(
AuthenticationUserDetailsService<PreAuthenticatedAuthenticationToken> preAuthenticatedUserDetailsService) {
this.preAuthenticatedUserDetailsService = preAuthenticatedUserDetailsService;
}
}
We also set up a successful authentication handler to redirect the user to the appropriate URL after authentication -
public class CustomAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler {
@Override
public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws ServletException, IOException {
Set<GrantedAuthority> authorities = ((UserDetails)authentication.getPrincipal()).getAuthorities();
if(CollectionUtils.isNotEmpty(authorities)){
GrantedAuthority role = getHighestRole(authorities);
String targetURL = getTargetURL(role);
if (targetURL != null) {
log.debug("Redirecting to target Url: " + targetURL);
getRedirectStrategy().sendRedirect(request, response, targetURL);
return;
}
}
super.onAuthenticationSuccess(request, response, authentication);
}
}
The spring security configuration file is shown below:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:security="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<security:http use-expressions="true" auto-config="false" pattern="/sso/*" entry-point-ref="http403ForbiddenEntryPoint" access-denied-page="/accessdenied.action" >
<security:anonymous enabled="false"/>
<security:custom-filter position="BASIC_AUTH_FILTER" ref="defaultBasicAuthFilter" />
<security:expression-handler ref="expressionHandler"/>
</security:http>
<security:http use-expressions="true" auto-config="false" pattern="/rcd/associate/*" entry-point-ref="http403ForbiddenEntryPoint" access-denied-page="/accessdenied.action">
<security:intercept-url pattern="/saml/sso/*" access="IS_AUTHENTICATED_ANONYMOUSLY"/>
<security:custom-filter position="BASIC_AUTH_FILTER" ref="defaultBasicAuthFilter" />
<security:expression-handler ref="expressionHandler"/>
</security:http>
<bean id="http403ForbiddenEntryPoint"
class="org.springframework.security.web.authentication.Http403ForbiddenEntryPoint" />
<bean id="expressionHandler" class="org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler">
<property name="permissionEvaluator" ref="customPermissionEvaluator" />
</bean>
<bean id="defaultBasicAuthFilter"
class="com.example.security.authentication.DefaultAuthenticationProcessingFilter">
<property name="authenticationManager" ref="authenticationManager" />
<property name="authenticationSuccessHandler" ref="successRedirectHandler"/>
<property name="AuthenticationFailureHandler" ref="failureHandler"></property>
</bean>
<bean id="authProvider"
class="com.example.security.authentication.CustomAuthenticationProvider">
<property name="preAuthenticatedUserDetailsService">
<bean id="userDetailsServiceWrapper"
class="org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper">
<property name="userDetailsService" ref="userDetailsService" />
</bean>
</property>
</bean>
<security:authentication-manager alias="authenticationManager">
<security:authentication-provider
ref="authProvider" />
</security:authentication-manager>
<bean id="userDetailsService" class="com.example.security.authorization.UserDetailsServiceImpl" />
<bean id="successRedirectHandler"
class="com.example.security.authentication.CustomAuthenticationSuccessHandler">
<property name="defaultTargetUrl" value="/user1/user1LandingPage.action"/>
</bean>
<bean id="failureHandler"
class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
<property name="defaultFailureUrl" value="/accessdenied.action"/>
</bean>
We also set up web.xml
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring/spring-app-context.xml
</param-value>
</context-param>
<servlet>
<servlet-name>example-dispatcher-servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>example-dispatcher-servlet</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/rcd/pages/index.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>com.example.HttpSessionListenerImpl</listener-class>
</listener>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
spring 3.1.3 spring security 3.1.3
, . . debuggin , . , - . .
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