package com.scau.equipment.config.common.security.provider;

import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;

import java.util.Arrays;
import java.util.List;

/**
 * Created by Administrator on 2017-05-10.
 */
@Component
public class InMemoryAuthenticationProvider implements AuthenticationProvider {
  private final String adminName = "root";
  private final String adminPassword = "root";

  //根用户拥有全部的权限
  private final List<GrantedAuthority> authorities = Arrays.asList(new SimpleGrantedAuthority("CAN_SEARCH"),
      new SimpleGrantedAuthority("CAN_SEARCH"),
      new SimpleGrantedAuthority("CAN_EXPORT"),
      new SimpleGrantedAuthority("CAN_IMPORT"),
      new SimpleGrantedAuthority("CAN_BORROW"),
      new SimpleGrantedAuthority("CAN_RETURN"),
      new SimpleGrantedAuthority("CAN_REPAIR"),
      new SimpleGrantedAuthority("CAN_DISCARD"),
      new SimpleGrantedAuthority("CAN_EMPOWERMENT"),
      new SimpleGrantedAuthority("CAN_BREED"));

  @Override
  public Authentication authenticate(Authentication authentication) throws AuthenticationException {
    if(isMatch(authentication)){
      User user = new User(authentication.getName(),authentication.getCredentials().toString(),authorities);
      return new UsernamePasswordAuthenticationToken(user,authentication.getCredentials(),authorities);
    }
    return null;
  }

  @Override
  public boolean supports(Class<?> authentication) {
    return true;
  }

  private boolean isMatch(Authentication authentication){
    if(authentication.getName().equals(adminName)&&authentication.getCredentials().equals(adminPassword))
      return true;
    else
      return false;
  }
}

 @Bean
  DaoAuthenticationProvider daoAuthenticationProvider(){
    DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
    daoAuthenticationProvider.setPasswordEncoder(new BCryptPasswordEncoder());
    daoAuthenticationProvider.setUserDetailsService(userServiceDetails);
    return daoAuthenticationProvider;
  }

package com.scau.equipment.config.common.security;

import com.scau.equipment.config.common.security.handler.AjaxLoginFailureHandler;
import com.scau.equipment.config.common.security.handler.AjaxLoginSuccessHandler;
import com.scau.equipment.config.common.security.provider.InMemoryAuthenticationProvider;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.authentication.configurers.provisioning.InMemoryUserDetailsManagerConfigurer;
import org.springframework.security.config.annotation.authentication.configurers.provisioning.UserDetailsManagerConfigurer;
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.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import java.util.Arrays;
import java.util.List;

/**
 * Created by Administrator on 2017/2/17.
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

  @Autowired
  UserDetailsService userServiceDetails;

  @Autowired
  InMemoryAuthenticationProvider inMemoryAuthenticationProvider;

  @Bean
  DaoAuthenticationProvider daoAuthenticationProvider(){
    DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
    daoAuthenticationProvider.setPasswordEncoder(new BCryptPasswordEncoder());
    daoAuthenticationProvider.setUserDetailsService(userServiceDetails);
    return daoAuthenticationProvider;
  }

  @Override
  protected void configure(HttpSecurity http) throws Exception {
    http
        .csrf().disable()
        .rememberMe().alwaysRemember(true).tokenValiditySeconds(86400).and()
        .authorizeRequests()
          .antMatchers("/","/*swagger*/**", "/v2/api-docs").permitAll()
          .anyRequest().authenticated().and()
        .formLogin()
          .loginPage("/")
          .loginProcessingUrl("/login")
          .successHandler(new AjaxLoginSuccessHandler())
          .failureHandler(new AjaxLoginFailureHandler()).and()
        .logout().logoutUrl("/logout").logoutSuccessUrl("/");
  }

  @Override
  public void configure(WebSecurity web) throws Exception {
    web.ignoring().antMatchers("/public/**", "/webjars/**", "/v2/**", "/swagger**");
  }

  @Override
  protected AuthenticationManager authenticationManager() throws Exception {
    ProviderManager authenticationManager = new ProviderManager(Arrays.asList(inMemoryAuthenticationProvider,daoAuthenticationProvider()));
    //不擦除认证密码，擦除会导致TokenBasedRememberMeServices因为找不到Credentials再调用UserDetailsService而抛出UsernameNotFoundException
    authenticationManager.setEraseCredentialsAfterAuthentication(false);
    return authenticationManager;
  }

  /**
   * 这里需要提供UserDetailsService的原因是RememberMeServices需要用到
   * @return
   */
  @Override
  protected UserDetailsService userDetailsService() {
    return userServiceDetails;
  }
}