com.emusic.SecurityConfig.java Source code

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Here is the source code for com.emusic.SecurityConfig.java

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package com.emusic;

/*
 * Copyright 2012-2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerProperties;
import org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoTokenServices;
import org.springframework.boot.context.embedded.FilterRegistrationBean;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.client.OAuth2ClientContext;
import org.springframework.security.oauth2.client.OAuth2RestTemplate;
import org.springframework.security.oauth2.client.filter.OAuth2ClientAuthenticationProcessingFilter;
import org.springframework.security.oauth2.client.filter.OAuth2ClientContextFilter;
import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeResourceDetails;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableOAuth2Client;
import org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.security.web.csrf.CsrfFilter;
import org.springframework.security.web.csrf.CsrfToken;
import org.springframework.security.web.csrf.CsrfTokenRepository;
import org.springframework.security.web.csrf.HttpSessionCsrfTokenRepository;
import org.springframework.web.filter.CompositeFilter;
import org.springframework.web.filter.OncePerRequestFilter;
import org.springframework.web.util.WebUtils;

@Configuration
@EnableOAuth2Client
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    OAuth2ClientContext oauth2ClientContext;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // @formatter:off   
        http.antMatcher("/**").authorizeRequests()
                .antMatchers("/", "/login**", "/webjars/**", "/views/**", "/products").permitAll().anyRequest()
                .authenticated().and().exceptionHandling()
                .authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/")).and().logout()
                .logoutSuccessUrl("/").permitAll().and().csrf().csrfTokenRepository(csrfTokenRepository()).and()
                .addFilterAfter(csrfHeaderFilter(), CsrfFilter.class)
                .addFilterBefore(ssoFilter(), BasicAuthenticationFilter.class);
        // @formatter:on
    }

    @Bean
    public FilterRegistrationBean oauth2ClientFilterRegistration(OAuth2ClientContextFilter filter) {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(filter);
        registration.setOrder(-100);
        return registration;
    }

    private Filter ssoFilter() {

        CompositeFilter filter = new CompositeFilter();
        List<Filter> filters = new ArrayList<>();

        OAuth2ClientAuthenticationProcessingFilter facebookFilter = new OAuth2ClientAuthenticationProcessingFilter(
                "/login/facebook");
        OAuth2RestTemplate facebookTemplate = new OAuth2RestTemplate(facebook(), oauth2ClientContext);
        facebookFilter.setRestTemplate(facebookTemplate);
        facebookFilter.setTokenServices(
                new UserInfoTokenServices(facebookResource().getUserInfoUri(), facebook().getClientId()));
        filters.add(facebookFilter);

        OAuth2ClientAuthenticationProcessingFilter githubFilter = new OAuth2ClientAuthenticationProcessingFilter(
                "/login/github");
        OAuth2RestTemplate githubTemplate = new OAuth2RestTemplate(github(), oauth2ClientContext);
        githubFilter.setRestTemplate(githubTemplate);
        githubFilter.setTokenServices(
                new UserInfoTokenServices(githubResource().getUserInfoUri(), github().getClientId()));
        filters.add(githubFilter);

        filter.setFilters(filters);
        return filter;

    }

    @Bean
    @ConfigurationProperties("facebook.client")
    OAuth2ProtectedResourceDetails facebook() {
        return new AuthorizationCodeResourceDetails();
    }

    @Bean
    @ConfigurationProperties("facebook.resource")
    ResourceServerProperties facebookResource() {
        return new ResourceServerProperties();
    }

    @Bean
    @ConfigurationProperties("github.client")
    OAuth2ProtectedResourceDetails github() {
        return new AuthorizationCodeResourceDetails();
    }

    @Bean
    @ConfigurationProperties("github.resource")
    ResourceServerProperties githubResource() {
        return new ResourceServerProperties();
    }

    private Filter csrfHeaderFilter() {
        return new OncePerRequestFilter() {
            @Override
            protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
                    FilterChain filterChain) throws ServletException, IOException {
                CsrfToken csrf = (CsrfToken) request.getAttribute(CsrfToken.class.getName());
                if (csrf != null) {
                    Cookie cookie = WebUtils.getCookie(request, "XSRF-TOKEN");
                    String token = csrf.getToken();
                    if (cookie == null || token != null && !token.equals(cookie.getValue())) {
                        cookie = new Cookie("XSRF-TOKEN", token);
                        cookie.setPath("/");
                        response.addCookie(cookie);
                    }
                }
                filterChain.doFilter(request, response);
            }
        };
    }

    private CsrfTokenRepository csrfTokenRepository() {
        HttpSessionCsrfTokenRepository repository = new HttpSessionCsrfTokenRepository();
        repository.setHeaderName("X-XSRF-TOKEN");
        return repository;
    }

}