Java tutorial
/** * Copyright 2014 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. */ package com.javaetmoi.sample.config; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Scope; import org.springframework.context.annotation.ScopedProxyMode; import org.springframework.security.authentication.RememberMeAuthenticationToken; import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.builders.WebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.config.annotation.web.servlet.configuration.EnableWebMvcSecurity; import org.springframework.security.core.Authentication; import org.springframework.security.core.context.SecurityContextHolder; import org.springframework.security.core.userdetails.UserDetails; @Configuration @EnableWebMvcSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter { @Autowired public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { // to customize with your own authentication provider auth.inMemoryAuthentication().withUser("user").password("password").roles("USER"); } @Override public void configure(WebSecurity web) throws Exception { web.ignoring().antMatchers("/resources/**"); } @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests().antMatchers("/signup", "/about").permitAll().antMatchers("/admin/**") .hasRole("ADMIN").anyRequest().authenticated() // 7 .and().formLogin().loginPage("/login").permitAll(); } /** * Authenticated user information available as a proxified Spring bean. * * <p>Could be inject into beans of scope singleton (ie. @Service or @Controler) */ @Bean @Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS) public UserDetails authenticatedUserDetails() { SecurityContextHolder.getContext().getAuthentication(); Authentication authentication = SecurityContextHolder.getContext().getAuthentication(); if (authentication != null) { if (authentication instanceof UsernamePasswordAuthenticationToken) { return (UserDetails) ((UsernamePasswordAuthenticationToken) authentication).getPrincipal(); } if (authentication instanceof RememberMeAuthenticationToken) { return (UserDetails) ((RememberMeAuthenticationToken) authentication).getPrincipal(); } } return null; } }