微服务应用javaSpringSecurity

SpringBoot SpringSecurity(四)短信验证

2019-08-03  本文已影响0人  lconcise

Spring Security默认只提供了账号密码的登录认证逻辑,所以要实现手机短信验证码登录认证功能,我们需要模仿Spring Security账号密码登录逻辑代码来实现一套自己的认证逻辑。
通过下面步骤来完成短信验证码登录:

  1. 短信验证码生成
  2. 改造登录页
  3. 添加短信验证码认证
    3.1 定义SmsAuthenticationToken
    3.2 定义SmsAuthenticationFilter
    3.3 定义SmsAuthenticationProvider
    3.4 定义SmsCodeFilter
    3.5 关联配置,配置生效
  4. 测试

短信验证码生成

创建基础类SmsCode:

@Data
public class SmsCode {

    private String code;
    private LocalDateTime expireTime;

    public SmsCode(String code, int expireIn) {
        this.code = code;
        this.expireTime = LocalDateTime.now().plusSeconds(expireIn);
    }

    boolean isExpire() {
        return LocalDateTime.now().isAfter(expireTime);
    }
}

SmsCode对象包含了两个属性:code验证码和expireTime过期时间。isExpire方法用于判断短信验证码是否已过期。

创建生成短信验证码接口:

@Log
@RestController
public class ValidateController {

    public final static String SESSION_KEY_IMAGE_CODE = "SESSION_KEY_IMAGE_CODE";
    public final static String SESSION_KEY_SMS_CODE = "SESSION_KEY_SMS_CODE";
    private SessionStrategy sessionStrategy = new HttpSessionSessionStrategy();

    @GetMapping("/code/sms")
    public void createSmsCode(HttpServletRequest request, String mobile) {
        SmsCode smsCode = createSMSCode();
        sessionStrategy.setAttribute(new ServletWebRequest(request), SESSION_KEY_SMS_CODE + mobile, smsCode);

        log.info("登录验证为:" + smsCode.getCode());
    }

    private SmsCode createSMSCode() {
        String code = RandomStringUtils.randomNumeric(6);
        return new SmsCode(code, 60);
    }
   ....
}

这里我们使用createSMSCode方法生成了一个6位的纯数字随机数,有效时间为60秒。然后通过SessionStrategy对象的setAttribute方法将短信验证码保存到了Session中,对应的key为SESSION_KEY_SMS_CODE。保存到session 是为了后期验证校验。

改造登录页

在登录页添加

<form class="login-page" action="/login/mobile" method="post">
    <div class="form">
        <h3>短信验证码登录</h3>
        <input type="text" placeholder="手机号" name="mobile" value="17777777777" required="required"/>
        <span style="display: inline">
            <input type="text" name="smsCode" placeholder="短信验证码" style="width: 50%;"/>
            <!--<a href="/code/sms?mobile=17777777777">发送验证码</a>-->
            <button onclick="requestButton()" type="button">发送验证码</button>
        </span>
        <br/>

        <button type="submit">登录</button>
    </div>
</form>
<script>
    function requestButton() {
        alert("hello world")
        $.get("/code/sms?mobile=17777777777");
    }
</script>

效果如图所示:


image.png

添加短信验证码认证

在Spring Security中,使用用户名密码认证的过程大致如下图所示:


image.png

Spring Security使用UsernamePasswordAuthenticationFilter过滤器来拦截用户名密码认证请求,将用户名和密码封装成一个UsernamePasswordToken对象交给AuthenticationManager处理。
AuthenticationManager将挑出一个支持处理该类型Token的AuthenticationProvider(这里为DaoAuthenticationProvider,AuthenticationProvider的其中一个实现类)来进行认证,认证过程中DaoAuthenticationProvider将调用UserDetailService的loadUserByUsername方法来处理认证,如果认证通过(即UsernamePasswordToken中的用户名和密码相符)则返回一个UserDetails类型对象,并将认证信息保存到Session中,认证后我们便可以通过Authentication对象获取到认证的信息了。

由于Spring Security并没用提供短信验证码认证的流程,所以我们需要仿照上面这个流程来实现:

image.png

在这个流程中,我们自定义了一个名为SmsAuthenticationFitler的过滤器来拦截短信验证码登录请求,并将手机号码封装到一个叫SmsAuthenticationToken的对象中。
在Spring Security中,认证处理都需要通过AuthenticationManager来代理,所以这里我们依旧将SmsAuthenticationToken交由AuthenticationManager处理。接着我们需要定义一个支持处理SmsAuthenticationToken对象的SmsAuthenticationProvider,SmsAuthenticationProvider调用UserDetailService的loadUserByUsername方法来处理认证。与用户名密码认证不一样的是,这里是通过SmsAuthenticationToken中的手机号去数据库中查询是否有与之对应的用户,如果有,则将该用户信息封装到UserDetails对象中返回并将认证后的信息保存到Authentication对象中。

为了实现这个流程,我们需要定义SmsAuthenticationFitler、SmsAuthenticationToken和SmsAuthenticationProvider,并将这些组建组合起来添加到Spring Security中。下面我们来逐步实现这个过程。

定义SmsAuthenticationToken

public class SmsAuthenticationToken extends AbstractAuthenticationToken {

    private static final long serialVersionUID = 8151829567809593110L;

    private final Object principal;

    public SmsAuthenticationToken(String mobile) {
        super(null);
        this.principal = mobile;
        super.setAuthenticated(false);
    }

    public SmsAuthenticationToken(Collection<? extends GrantedAuthority> authorities, Object principal) {
        super(authorities);
        this.principal = principal;
        super.setAuthenticated(true);
    }

    @Override
    public Object getCredentials() {
        return null;
    }

    @Override
    public Object getPrincipal() {
        return this.principal;
    }
}

SmsAuthenticationToken包含一个principal属性,从它的两个构造函数可以看出,在认证之前principal存的是手机号,认证之后存的是用户信息。
UsernamePasswordAuthenticationToken原来还包含一个credentials属性用于存放密码,这里不需要就去掉了。

定义SmsAuthenticationFilter

public class SmsAuthenticationFilter extends AbstractAuthenticationProcessingFilter {

    private static final String MOBILE_KEY = "mobile";
    private boolean postOnly = true;

    public SmsAuthenticationFilter() {
        super(new AntPathRequestMatcher("/login/mobile", "POST"));
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request,
                                                HttpServletResponse response) throws AuthenticationException, IOException, ServletException {

        if (postOnly && !request.getMethod().equals("POST")) {
            throw new AuthenticationServiceException("Authentication method not support: " + request.getMethod());
        }

        String mobile = request.getParameter(MOBILE_KEY);

        if (mobile == null) {
            mobile = "";
        }

        SmsAuthenticationToken authRequest = new SmsAuthenticationToken(mobile);

        setDetails(request, authRequest);

        return this.getAuthenticationManager().authenticate(authRequest);
    }

    protected void setDetails(HttpServletRequest request, SmsAuthenticationToken authRequest) {
        authRequest.setDetails(authenticationDetailsSource.buildDetails(request));
    }
}

构造函数中指定了当请求为/login/mobile,请求方法为POST的时候该过滤器生效。mobileParameter属性值为mobile,对应登录页面手机号输入框的name属性。attemptAuthentication方法从请求中获取到mobile参数值,并调用SmsAuthenticationToken的SmsAuthenticationToken(String mobile)构造方法创建了一个SmsAuthenticationToken。下一步就如流程图中所示的那样,SmsAuthenticationFilter将SmsAuthenticationToken交给AuthenticationManager处理。

定义SmsAuthenticationProvider

@Data
public class SmsAuthenticationProvider implements AuthenticationProvider {

    private UserDetailsService userDetailsService;

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        SmsAuthenticationToken smsAuthenticationToken = (SmsAuthenticationToken) authentication;
        UserDetails userDetails = userDetailsService.loadUserByUsername((String) authentication.getPrincipal());

        if (userDetails == null) {
            throw new InternalAuthenticationServiceException("未找到与该手机对应的用户");
        }

        SmsAuthenticationToken authenticationResult = new SmsAuthenticationToken(userDetails.getAuthorities(), userDetails);
        authenticationResult.setDetails(smsAuthenticationToken.getDetails());
        return authenticationResult;
    }

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

其中supports方法指定了支持处理的Token类型为SmsAuthenticationToken,authenticate方法用于编写具体的身份认证逻辑。
在authenticate方法中,我们从SmsAuthenticationToken中取出了手机号信息,并调用了UserDetailService的loadUserByUsername方法。该方法在用户名密码类型的认证中,主要逻辑是通过用户名查询用户信息,如果存在该用户并且密码一致则认证成功;
而在短信验证码认证的过程中,该方法需要通过手机号去查询用户,如果存在该用户则认证通过。认证通过后接着调用SmsAuthenticationToken的SmsAuthenticationToken(Object principal, Collection<? extends GrantedAuthority> authorities)构造函数构造一个认证通过的Token,包含了用户信息和用户权限。

你可能会问,为什么这一步没有进行短信验证码的校验呢?实际上短信验证码的校验是在SmsAuthenticationFilter之前完成的,即只有当短信验证码正确以后才开始走认证的流程。所以接下来我们需要定一个过滤器来校验短信验证码的正确性。

定义SmsCodeFilter

@Component
public class SmsCodeFilter extends OncePerRequestFilter {

    @Autowired
    private AuthenticationFailureHandler authenticationFailureHandler;

    private SessionStrategy sessionStrategy = new HttpSessionSessionStrategy();

    @Override
    protected void doFilterInternal(HttpServletRequest httpServletRequest,
                                    HttpServletResponse httpServletResponse, FilterChain filterChain) throws ServletException, IOException {
        if (StringUtils.equalsIgnoreCase("/login/mobile", httpServletRequest.getRequestURI())
                && StringUtils.equalsIgnoreCase(httpServletRequest.getMethod(), "post")) {
            try {
                validateCode(new ServletWebRequest(httpServletRequest));
            } catch (ValidateCodeException e) {
                authenticationFailureHandler.onAuthenticationFailure(httpServletRequest, httpServletResponse, e);
                return;
            }
        }
        filterChain.doFilter(httpServletRequest, httpServletResponse);
    }

    private void validateCode(ServletWebRequest servletWebRequest) throws ServletRequestBindingException {
        String smsCode = ServletRequestUtils.getStringParameter(servletWebRequest.getRequest(), "smsCode");
        String mobile = ServletRequestUtils.getStringParameter(servletWebRequest.getRequest(), "mobile");

        SmsCode codeInSession = (SmsCode) sessionStrategy.getAttribute(servletWebRequest, ValidateController.SESSION_KEY_SMS_CODE + mobile);

        if (StringUtils.isBlank(smsCode)) {
            throw new ValidateCodeException("验证码不能为空");
        }

        if (codeInSession == null) {
            throw new ValidateCodeException("验证码不存在");
        }

        if (codeInSession.isExpire()) {
            sessionStrategy.removeAttribute(servletWebRequest, ValidateController.SESSION_KEY_SMS_CODE + mobile);
            throw new ValidateCodeException("验证码已经过期");
        }

        if (!StringUtils.equalsIgnoreCase(codeInSession.getCode(), smsCode)) {
            throw new ValidateCodeException("验证码不正确");
        }

        sessionStrategy.removeAttribute(servletWebRequest, ValidateController.SESSION_KEY_SMS_CODE + mobile);
    }
}

关联配置,配置生效

在定义完所需的组件后,我们需要进行一些配置,将这些组件组合起来形成一个和上面流程图对应的流程。创建一个配置类SmsAuthenticationConfig:

@Component
public class SmsAuthenticationConfig extends SecurityConfigurerAdapter<DefaultSecurityFilterChain, HttpSecurity> {

    @Autowired
    private AuthenticationFailureHandler authenticationFailureHandler;
    @Autowired
    private AuthenticationSuccessHandler authenticationSuccessHandler;
    @Autowired
    private UserDetailService userDetailService;

    @Override
    public void configure(HttpSecurity httpSecurity) throws Exception {
        SmsAuthenticationFilter authenticationFilter = new SmsAuthenticationFilter();
        authenticationFilter.setAuthenticationManager(httpSecurity.getSharedObject(AuthenticationManager.class));
        authenticationFilter.setAuthenticationSuccessHandler(authenticationSuccessHandler);
        authenticationFilter.setAuthenticationFailureHandler(authenticationFailureHandler);

        SmsAuthenticationProvider smsAuthenticationProvider = new SmsAuthenticationProvider();
        smsAuthenticationProvider.setUserDetailsService(userDetailService);

        httpSecurity.authenticationProvider(smsAuthenticationProvider)
                .addFilterAfter(authenticationFilter, UsernamePasswordAuthenticationFilter.class);
    }
}

在流程中第一步需要配置SmsAuthenticationFilter,分别设置了AuthenticationManager、AuthenticationSuccessHandler和AuthenticationFailureHandler属性。这些属性都是来自SmsAuthenticationFilter继承的AbstractAuthenticationProcessingFilter类中。

第二步配置SmsAuthenticationProvider,这一步只需要将我们自个的UserDetailService注入进来即可。

最后调用HttpSecurity的authenticationProvider方法指定了AuthenticationProvider为SmsAuthenticationProvider,并将SmsAuthenticationFilter过滤器添加到了UsernamePasswordAuthenticationFilter后面。

到这里我们已经将短信验证码认证的各个组件组合起来了,最后一步需要做的是配置短信验证码校验过滤器,并且将短信验证码认证流程加入到Spring Security中。在SecurityConfig的configure方法中添加如下配置:

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private MyAuthenticationSuccessHandler authenticationSuccessHandler;
    @Autowired
    private MyAuthenticationFailureHandler authenticationFailureHandler;
    @Autowired
    private ValidateCodeFilter validateCodeFilter;
    @Autowired
    private SmsCodeFilter smsCodeFilter;
    @Autowired
    private SmsAuthenticationConfig smsAuthenticationConfig;

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

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.addFilterBefore(validateCodeFilter, UsernamePasswordAuthenticationFilter.class) // 添加验证码校验过滤器
                .addFilterBefore(smsCodeFilter, UsernamePasswordAuthenticationFilter.class)  // 添加短信验证码校验过滤器
                .formLogin() // 表单登录
                .loginPage("/login.html")       // 登录跳转url
//                .loginPage("/authentication/require")
                .loginProcessingUrl("/login")   // 处理表单登录url
                .successHandler(authenticationSuccessHandler)
                .failureHandler(authenticationFailureHandler)
                .and()
                .authorizeRequests()            // 授权配置
                .antMatchers("/login.html", "/css/**", "/authentication/require", "/code/image","/code/sms").permitAll()  // 无需认证
                .anyRequest()                   // 所有请求
                .authenticated()                // 都需要认证
                .and().csrf().disable()
                .apply(smsAuthenticationConfig);  // 将短信验证码认证配置加到 Spring Security 中
    }
}

测试

重启项目,访问http://localhost:9090/hello,跳转到登录页,点击发送验证码,控制台输出如下:

登录验证为:835177

输入验证码,登录成功,跳转到hello接口,返回如下


image.png

源码地址:https://github.com/lbshold/springboot/tree/master/Spring-Security-SmsCode

参考文章:https://mrbird.cc/Spring-Security-SmsCode.html

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