org.shaigor.rest.retro.client.config.ClientSecureWebAppInitializer.java Source code

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Here is the source code for org.shaigor.rest.retro.client.config.ClientSecureWebAppInitializer.java

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/**
 * Copyright 2014 the original author or authors.
 * 
 * This file is part of Retro-fitting Security into REST web services sample (the sample).
 * The sample is part of the talk presented at Java One 2014 
 *    https://oracleus.activeevents.com/2014/connect/sessionDetail.ww?SESSION_ID=1765&tclass=popup
 * 
 * The sample is free software: you can redistribute it and/or modify
 * it 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.
 * 
 * The sample is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with the sample.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.shaigor.rest.retro.client.config;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.DelegatingFilterProxy;
import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer;

/**
 * Spring alternative to web.xml
 * 
 * @author Irena Shaigorodsky
 */
public class ClientSecureWebAppInitializer extends AbstractDispatcherServletInitializer {

    @Override
    protected WebApplicationContext createServletApplicationContext() {
        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
        context.register(ClientSecurityConfigurer.class, ClientOAuth2Configurer.class,
                ClientWebMvcConfigurerAdapter.class);
        return context;
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    protected WebApplicationContext createRootApplicationContext() {
        return null;
    }

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        super.onStartup(servletContext);
        registerProxyFilter(servletContext, "springSecurityFilterChain");
        registerProxyFilter(servletContext, "oauth2ClientContextFilter");
        registerProxyFilter(servletContext, "customOauth2ClientContextFilter");
        servletContext.addListener(RequestContextListener.class);
    }

    private void registerProxyFilter(ServletContext servletContext, String name) {
        DelegatingFilterProxy filter = new DelegatingFilterProxy(name);
        filter.setContextAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher");
        servletContext.addFilter(name, filter).addMappingForUrlPatterns(null, false, "/*");
    }

}