import org.codehaus.groovy.grails.plugins.springsecurity.RedirectUtils import org.grails.plugins.springsecurity.service.AuthenticateService import org.springframework.security.AuthenticationTrustResolverImpl import org.springframework.security.DisabledException import org.springframework.security.context.SecurityContextHolder as SCH import org.springframework.security.ui.AbstractProcessingFilter import org.springframework.security.ui.webapp.AuthenticationProcessingFilter /** * Login Controller (Example). */ class LoginController { /** * Dependency injection for the authentication service. */ def authenticateService /** * Dependency injection for OpenIDConsumer. */ def openIDConsumer /** * Dependency injection for OpenIDAuthenticationProcessingFilter. */ def openIDAuthenticationProcessingFilter private final authenticationTrustResolver = new AuthenticationTrustResolverImpl() def index = { if (isLoggedIn()) { redirect uri: '/' } else { redirect action: auth, params: params } } def loggedOut = { flash['message'] = 'Successfully logged out' auth() } /** * Show the login page. */ def auth = { nocache(response) if (isLoggedIn()) { redirect uri: '/' return } String view String postUrl def config = authenticateService.securityConfig.security if (config.useOpenId) { view = 'openIdAuth' postUrl = "${request.contextPath}/login/openIdAuthenticate" } else if (config.useFacebook) { view = 'facebookAuth' postUrl = "${request.contextPath}${config.facebook.filterProcessesUrl}" } else { view = 'auth' postUrl = "${request.contextPath}${config.filterProcessesUrl}" } render view: view, model: [postUrl: postUrl] } /** * Form submit action to start an OpenID authentication. */ def openIdAuthenticate = { String openID = params['j_username'] try { String returnToURL = RedirectUtils.buildRedirectUrl( request, response, openIDAuthenticationProcessingFilter.filterProcessesUrl) String redirectUrl = openIDConsumer.beginConsumption(request, openID, returnToURL) redirect url: redirectUrl } catch (org.springframework.security.ui.openid.OpenIDConsumerException e) { log.error "Consumer error: $e.message", e redirect url: openIDAuthenticationProcessingFilter.authenticationFailureUrl } } // Login page (function|json) for Ajax access. def authAjax = { nocache(response) //this is example: render """ """ } /** * The Ajax success redirect url. */ def ajaxSuccess = { nocache(response) render '{success: true}' } /** * Show denied page. */ def denied = { if (isLoggedIn() && authenticationTrustResolver.isRememberMe(SCH.context?.authentication)) { // have cookie but the page is guarded with IS_AUTHENTICATED_FULLY redirect action: full, params: params } } /** * Login page for users with a remember-me cookie but accessing a IS_AUTHENTICATED_FULLY page. */ def full = { render view: 'auth', params: params, model: [hasCookie: authenticationTrustResolver.isRememberMe(SCH.context?.authentication)] } // Denial page (data|view|json) for Ajax access. def deniedAjax = { //this is example: render "{error: 'access denied'}" } /** * login failed */ def authfail = { def username = session[AuthenticationProcessingFilter.SPRING_SECURITY_LAST_USERNAME_KEY] def msg = '' def person = Person.findByLoginName(username) def exception = session[AbstractProcessingFilter.SPRING_SECURITY_LAST_EXCEPTION_KEY] if (exception) { if (exception instanceof DisabledException) { msg = "[$username] is disabled." } else if (person.authorities.isEmpty()) { msg = "[$username] has no GrantedAuthority." } else { msg = "[$username] wrong username/password." } } if (isAjax()) { render "{error: '${msg}'}" } else { flash.message = msg redirect action: auth, params: params } } /** * Check if logged in. */ private boolean isLoggedIn() { return authenticateService.isLoggedIn() } private boolean isAjax() { return authenticateService.isAjax(request) } /** cache controls */ private void nocache(response) { response.setHeader('Cache-Control', 'no-cache') // HTTP 1.1 response.addDateHeader('Expires', 0) response.setDateHeader('max-age', 0) response.setIntHeader ('Expires', -1) //prevents caching at the proxy server response.addHeader('cache-Control', 'private') //IE5.x only } }