Spring Security如何实现短信登录

Spring Security可以通过自定义过滤器实现短信验证码登录功能。具体实现步骤如下：

1. 创建一个实现了`AuthenticationDetailsSource`接口的类，用于封装短信验证码信息。

2. 创建一个实现了`AuthenticationProvider`接口的类，用于验证短信验证码是否正确。

3. 创建一个实现了`AbstractAuthenticationProcessingFilter`抽象类的过滤器类，用于处理短信验证码登录请求。

4. 在Spring Security配置类中配置短信验证码登录相关的bean和过滤器。

下面是一个简单的示例代码：

// 1. 创建一个类用于封装短信验证码信息
public class SmsCodeAuthenticationDetails extends WebAuthenticationDetails {
    private String smsCode;

    public SmsCodeAuthenticationDetails(HttpServletRequest request) {
        super(request);
        smsCode = request.getParameter("smsCode");
    }

    public String getSmsCode() {
        return smsCode;
    }
}

// 2. 创建一个类用于验证短信验证码是否正确
public class SmsCodeAuthenticationProvider implements AuthenticationProvider {
    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        SmsCodeAuthenticationToken authenticationToken = (SmsCodeAuthenticationToken) authentication;
        // 根据手机号码获取正确的短信验证码
        String mobile = (String) authenticationToken.getPrincipal();
        String smsCode = (String) authenticationToken.getCredentials();
        // 验证短信验证码是否正确
        if (smsCode.equals("123456")) {
            // 验证通过，返回一个新的认证令牌
            return new SmsCodeAuthenticationToken(mobile, smsCode, new ArrayList<>());
        } else {
            // 验证失败，抛出异常
            throw new BadCredentialsException("短信验证码不正确");
        }
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return SmsCodeAuthenticationToken.class.isAssignableFrom(authentication);
    }
}

// 3. 创建一个过滤器用于处理短信验证码登录请求
public class SmsCodeAuthenticationFilter extends AbstractAuthenticationProcessingFilter {
    public SmsCodeAuthenticationFilter() {
        super(new AntPathRequestMatcher("/login/mobile", "POST"));
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
        // 封装短信验证码信息
        SmsCodeAuthenticationDetails details = new SmsCodeAuthenticationDetails(request);
        // 封装认证令牌
        SmsCodeAuthenticationToken token = new SmsCodeAuthenticationToken(details.getSmsCode(), new ArrayList<>());
        // 进行认证
        return this.getAuthenticationManager().authenticate(token);
    }
}

// 4. 在Spring Security配置类中配置短信验证码登录相关的bean和过滤器
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private SmsCodeAuthenticationProvider smsCodeAuthenticationProvider;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .antMatchers("/login/mobile").permitAll()
                .anyRequest().authenticated()
                .and()
            .formLogin()
                .loginPage("/login")
                .defaultSuccessUrl("/")
                .permitAll()
                .and()
            .logout()
                .permitAll()
                .and()
            .addFilterBefore(smsCodeAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class);
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(smsCodeAuthenticationProvider)
            .userDetailsService(userDetailsService)
            .passwordEncoder(passwordEncoder());
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public SmsCodeAuthenticationFilter smsCodeAuthenticationFilter() throws Exception {
        SmsCodeAuthenticationFilter filter = new SmsCodeAuthenticationFilter();
        filter.setAuthenticationManager(authenticationManagerBean());
        return filter;
    }
}