Java tutorial
/* * Copyright (c) 2012 Data Harmonisation Panel * * All rights reserved. This program and the accompanying materials are made * available under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution. If not, see <http://www.gnu.org/licenses/>. * * Contributors: * HUMBOLDT EU Integrated Project #030962 * Data Harmonisation Panel <http://www.dhpanel.eu> */ package eu.esdihumboldt.hale.server.webapp; import org.apache.wicket.authorization.strategies.page.SimplePageAuthorizationStrategy; import org.apache.wicket.core.request.handler.PageProvider; import org.apache.wicket.core.request.handler.RenderPageRequestHandler; import org.apache.wicket.markup.html.IPackageResourceGuard; import org.apache.wicket.markup.html.SecurePackageResourceGuard; import org.apache.wicket.protocol.http.WebApplication; import org.apache.wicket.request.IRequestHandler; import org.apache.wicket.request.cycle.AbstractRequestCycleListener; import org.apache.wicket.request.cycle.RequestCycle; import org.apache.wicket.spring.injection.annot.SpringComponentInjector; import org.springframework.security.core.Authentication; import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.context.SecurityContext; import org.springframework.security.core.context.SecurityContextHolder; import de.agilecoders.wicket.core.Bootstrap; import de.agilecoders.wicket.core.markup.html.bootstrap.navbar.Navbar; import de.agilecoders.wicket.core.settings.BootstrapSettings; import de.agilecoders.wicket.core.settings.ThemeProvider; import de.agilecoders.wicket.less.BootstrapLess; import de.agilecoders.wicket.themes.markup.html.bootstrap3.Bootstrap3Theme; import de.agilecoders.wicket.themes.markup.html.google.GoogleTheme; import de.agilecoders.wicket.themes.markup.html.metro.MetroTheme; import de.agilecoders.wicket.themes.markup.html.wicket.WicketTheme; import de.agilecoders.wicket.themes.settings.BootswatchThemeProvider; import eu.esdihumboldt.hale.server.security.UserConstants; import eu.esdihumboldt.hale.server.webapp.pages.AboutPage; import eu.esdihumboldt.hale.server.webapp.pages.BasePage; import eu.esdihumboldt.hale.server.webapp.pages.ContactPage; import eu.esdihumboldt.hale.server.webapp.pages.ExceptionPage; import eu.esdihumboldt.hale.server.webapp.pages.LoginPage; import eu.esdihumboldt.hale.server.webapp.pages.NewUserPage; import eu.esdihumboldt.hale.server.webapp.pages.OpenIdLoginPage; import eu.esdihumboldt.hale.server.webapp.pages.SecuredPage; import eu.esdihumboldt.hale.server.webapp.pages.UserSettingsPage; /** * A basic class for web applications * * @author Michel Kraemer * @author Simon Templer */ public abstract class BaseWebApplication extends WebApplication { /** * The default title of a web application */ public static final String DEFAULT_TITLE = "HALE Web"; /** * Name of the system property that allows to specify a custom main title. */ public static final String SYSTEM_PROPERTY_MAIN_TITLE = "hale.webapp.maintitle"; /** * Name of the system property that allows enabling/disabling the login * page. */ public static final String SYSTEM_PROPERTY_LOGIN_PAGE = "hale.webapp.loginpage"; /** * Get the default application title. Is either the value of the system * property {@value #SYSTEM_PROPERTY_MAIN_TITLE} or {@link #DEFAULT_TITLE}. * * @return the default title */ public static String getDefaulTitle() { return System.getProperty(SYSTEM_PROPERTY_MAIN_TITLE, DEFAULT_TITLE); } /** * @return the main title of this application */ public String getMainTitle() { return getDefaulTitle(); } /** * Determines the login page type for this application. The default * implementation looks at the {@value #SYSTEM_PROPERTY_LOGIN_PAGE} system * property for this, if not specified the default is no login page. * * @return a page class or <code>null</code> */ public Class<? extends BasePage> getLoginPageClass() { String loginPage = System.getProperty(SYSTEM_PROPERTY_LOGIN_PAGE, "false"); switch (loginPage.toLowerCase()) { case "true": // fall through case "form": return LoginPage.class; case "openid": return OpenIdLoginPage.class; default: return null; } } @Override public void init() { super.init(); BootstrapSettings settings = new BootstrapSettings(); final ThemeProvider themeProvider = new BootswatchThemeProvider() { { add(new MetroTheme()); add(new GoogleTheme()); add(new WicketTheme()); add(new Bootstrap3Theme()); defaultTheme("bootstrap-responsive"); // defaultTheme("bootstrap"); } }; settings.setThemeProvider(themeProvider); Bootstrap.install(this, settings); BootstrapLess.install(this); configureResourceBundles(); IPackageResourceGuard packageResourceGuard = getResourceSettings().getPackageResourceGuard(); if (packageResourceGuard instanceof SecurePackageResourceGuard) { SecurePackageResourceGuard guard = (SecurePackageResourceGuard) packageResourceGuard; guard.addPattern("+org/apache/wicket/resource/jquery/*.map"); } // enforce mounts so security interceptors based on URLs can't be fooled getSecuritySettings().setEnforceMounts(true); getSecuritySettings().setAuthorizationStrategy( new SimplePageAuthorizationStrategy(SecuredPage.class, getLoginPageClass()) { @Override protected boolean isAuthorized() { SecurityContext securityContext = SecurityContextHolder.getContext(); if (securityContext != null) { Authentication authentication = securityContext.getAuthentication(); if (authentication != null && authentication.isAuthenticated()) { for (GrantedAuthority authority : authentication.getAuthorities()) { if (authority.getAuthority().equals(UserConstants.ROLE_USER) || authority.getAuthority().equals(UserConstants.ROLE_ADMIN)) { // allow access only for users/admins return true; } } } } return false; } }); getComponentInstantiationListeners().add(new SpringComponentInjector(this)); getRequestCycleListeners().add(new AbstractRequestCycleListener() { @Override public IRequestHandler onException(RequestCycle cycle, Exception ex) { return new RenderPageRequestHandler(new PageProvider(new ExceptionPage(ex))); } }); // add login page to every application based on this one (if enabled) Class<? extends BasePage> loginClass = getLoginPageClass(); if (loginClass != null) { // login page mountPage("/login", loginClass); // user settings mountPage("/settings", UserSettingsPage.class); // about mountPage("/about", AboutPage.class); // contact mountPage("/contact", ContactPage.class); if (OpenIdLoginPage.class.equals(loginClass)) { // for OpenID auth also add page for new users mountPage("/new", NewUserPage.class); } } } /** * Configure all resource bundles (CSS and JS) */ private void configureResourceBundles() { /* * XXX Somehow wrecks JQuery needed in OpenID login page, also, some * resources of the given are not found. */ // getResourceBundles().addJavaScriptBundle( // BaseWebApplication.class, // "core.js", // (JavaScriptResourceReference) getJavaScriptLibrarySettings().getJQueryReference(), // (JavaScriptResourceReference) getJavaScriptLibrarySettings() // .getWicketEventReference(), // (JavaScriptResourceReference) getJavaScriptLibrarySettings() // .getWicketAjaxReference(), // (JavaScriptResourceReference) ModernizrJavaScriptReference.INSTANCE); // // getResourceBundles().addJavaScriptBundle(BaseWebApplication.class, "bootstrap.js", // (JavaScriptResourceReference) Bootstrap.getSettings().getJsResourceReference(), // (JavaScriptResourceReference) BootstrapPrettifyJavaScriptReference.INSTANCE); // // getResourceBundles().addJavaScriptBundle(BaseWebApplication.class, // "bootstrap-extensions.js", JQueryUIJavaScriptReference.instance(), // Html5PlayerJavaScriptReference.instance()); // // getResourceBundles().addCssBundle(BaseWebApplication.class, "bootstrap-extensions.css", // Html5PlayerCssReference.instance(), OpenWebIconsCssReference.instance()); // // getResourceBundles().addCssBundle(BaseWebApplication.class, "application.css", // (CssResourceReference) BootstrapPrettifyCssReference.INSTANCE); } /** * Add application specific extras to the navigation bar. * * @param navbar the navigation bar * @param loggedIn if the user is logged in */ public void addNavBarExtras(Navbar navbar, boolean loggedIn) { // override me } }