快捷導(dǎo)航

詳解spring security 配置多個(gè)AuthenticationProvider

更新時(shí)間：2017年05月11日 09:56:13 作者：暮夜望日

這篇文章主要介紹了詳解spring security 配置多個(gè)AuthenticationProvider ,小編覺(jué)得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

前言

發(fā)現(xiàn)很少關(guān)于spring security的文章，基本都是入門級(jí)的，配個(gè)UserServiceDetails或者配個(gè)路由控制就完事了，而且很多還是xml配置，國(guó)內(nèi)通病...so，本文里的配置都是java配置，不涉及xml配置，事實(shí)上我也不會(huì)xml配置

spring security的大體介紹

spring security本身如果只是說(shuō)配置，還是很簡(jiǎn)單易懂的（我也不知道網(wǎng)上說(shuō)spring security難，難在哪里），簡(jiǎn)單不需要特別的功能，一個(gè)WebSecurityConfigurerAdapter的實(shí)現(xiàn)，然后實(shí)現(xiàn)UserServiceDetails就是簡(jiǎn)單的數(shù)據(jù)庫(kù)驗(yàn)證了，這個(gè)我就不說(shuō)了。

spring security大體上是由一堆Filter（所以才能在spring mvc前攔截請(qǐng)求）實(shí)現(xiàn)的，F(xiàn)ilter有幾個(gè)，登出Filter（LogoutFilter），用戶名密碼驗(yàn)證Filter（UsernamePasswordAuthenticationFilter）之類的，F(xiàn)ilter再交由其他組件完成細(xì)分的功能，例如最常用的UsernamePasswordAuthenticationFilter會(huì)持有一個(gè)AuthenticationManager引用，AuthenticationManager顧名思義，驗(yàn)證管理器，負(fù)責(zé)驗(yàn)證的，但AuthenticationManager本身并不做具體的驗(yàn)證工作，AuthenticationManager持有一個(gè)AuthenticationProvider集合，AuthenticationProvider才是做驗(yàn)證工作的組件，AuthenticationManager和AuthenticationProvider的工作機(jī)制可以大概看一下這兩個(gè)的java doc，然后成功失敗都有相對(duì)應(yīng)該Handler 。大體的spring security的驗(yàn)證工作流程就是這樣了。

開始配置多AuthenticationProvider

首先，寫一個(gè)內(nèi)存認(rèn)證的AuthenticationProvider，這里我簡(jiǎn)單地寫一個(gè)只有root帳號(hào)的AuthenticationProvider

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";

  //根用戶擁有全部的權(quán)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;
  }
}

support方法檢查authentication的類型是不是這個(gè)AuthenticationProvider支持的，這里我簡(jiǎn)單地返回true，就是所有都支持，這里所說(shuō)的authentication為什么會(huì)有多個(gè)類型，是因?yàn)槎鄠€(gè)AuthenticationProvider可以返回不同的Authentication。

public Authentication authenticate(Authentication authentication) throws AuthenticationException 方法就是驗(yàn)證過(guò)程。

如果AuthenticationProvider返回了null，AuthenticationManager會(huì)交給下一個(gè)支持authentication類型的AuthenticationProvider處理。

另外需要一個(gè)數(shù)據(jù)庫(kù)認(rèn)證的AuthenticationProvider，我們可以直接用spring security提供的DaoAuthenticationProvider，設(shè)置一下UserServiceDetails和PasswordEncoder就可以了

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

最后在WebSecurityConfigurerAdapter里配置一個(gè)含有以上兩個(gè)AuthenticationProvider的AuthenticationManager，依然重用spring security提供的ProviderManager

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()));
    //不擦除認(rèn)證密碼，擦除會(huì)導(dǎo)致TokenBasedRememberMeServices因?yàn)檎也坏紺redentials再調(diào)用UserDetailsService而拋出UsernameNotFoundException
    authenticationManager.setEraseCredentialsAfterAuthentication(false);
    return authenticationManager;
  }

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

基本上都是重用了原有的類，很多都是默認(rèn)使用的，只不過(guò)為了修改下行為而重新配置。其實(shí)如果偷懶，直接用一個(gè)UserDetailsService，在里面做各種認(rèn)證也是可以的~不過(guò)這樣就沒(méi)意思了

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

您可能感興趣的文章: