Spring Security OAuth 自定义授权方式实现手机验证码

Spring Security OAuth 默认提供OAuth2.0 的四大基本授权方式(authorization_code\implicit\password\client_credential),除此之外我们也能够自定义授权方式。

先了解一下Spring Security OAuth提供的两个默认 Endpoints,一个是AuthorizationEndpoint,这个是仅用于授权码(authorization_code)和简化(implicit)模式的。另外一个是TokenEndpoint,用于OAuth2授权时下发Token,根据授予类型(GrantType)的不同而执行不同的验证方式。

OAuth2协议这里就不做过多介绍了,比较重要的一点是理解认证中各个角色的作用,以及认证的目的(获取用户信息或是具备使用API的权限)。例如在authorization_code模式下,用户(User)在认证服务的网站上进行登录,网站跳转回第三方应用(Client),第三方应用通过Secret和Code换取Token后向资源服务请求用户信息;而在client_credential模式下,第三方应用通过Secret直接获得Token后可以直接利用其访问资源API。所以我们应该根据实际的情景选择适合的认证模式。

对于手机验证码的认证模式,我们首先提出短信验证的通常需求:

每发一次验证码只能尝试验证5次,防止暴力破解 限制验证码发送频率,单个用户(这里简单使用手机号区分)1分钟1条,24小时x条 限制验证码有效期,15分钟

我们根据业务需求构造出对应的模型:

@Datapublic class SmsVerificationModel {  /**   * 手机号   */  private String phoneNumber;  /**   * 验证码   */  private String captcha;  /**   * 本次验证码验证失败次数,防止暴力尝试   */  private Integer failCount;  /**   * 该user当日尝试次数,防止滥发短信   */  private Integer dailyCount;  /**   * 限制短信发送频率和实现验证码有效期   */  private Date lastSentTime;  /**   * 是否验证成功   */  private Boolean verified = false;}

我们预想的认证流程:

接下来要对Spring Security OAuth进行定制,这里直接仿照一个比较相似的password模式,首先需要编写一个新的TokenGranter,处理sms类型下的TokenRequest,这个SmsTokenGranter会生成SmsAuthenticationToken,并将AuthenticationToken交由SmsAuthenticationProvider进行验证,验证成功后生成通过验证的SmsAuthenticationToken,完成Token的颁发。

public class SmsTokenGranter extends AbstractTokenGranter {  private static final String GRANT_TYPE = "sms";  private final AuthenticationManager authenticationManager;  public SmsTokenGranter(AuthenticationManager authenticationManager, AuthorizationServerTokenServices tokenServices,              ClientDetailsService clientDetailsService, OAuth2RequestFactory requestFactory){    super(tokenServices, clientDetailsService, requestFactory, GRANT_TYPE);    this.authenticationManager = authenticationManager;  }  @Override  protected OAuth2Authentication getOAuth2Authentication(ClientDetails client, TokenRequest tokenRequest) {    Map<String, String> parameters = new LinkedHashMap<>(tokenRequest.getRequestParameters());    String phone = parameters.get("phone");    String code = parameters.get("code");    Authentication userAuth = new SmsAuthenticationToken(phone, code);    try {      userAuth = authenticationManager.authenticate(userAuth);    }    catch (AccountStatusException ase) {      throw new InvalidGrantException(ase.getMessage());    }    catch (BadCredentialsException e) {      throw new InvalidGrantException(e.getMessage());    }    if (userAuth == null || !userAuth.isAuthenticated()) {      throw new InvalidGrantException("Could not authenticate user: " + username);    }    OAuth2Request storedOAuth2Request = getRequestFactory().createOAuth2Request(client, tokenRequest);    return new OAuth2Authentication(storedOAuth2Request, userAuth);  }}

对应的SmsAuthenticationToken,其中一个构造方法是认证后的。

public class SmsAuthenticationToken extends AbstractAuthenticationToken {  private final Object principal;  private Object credentials;  public SmsAuthenticationToken(Object principal, Object credentials) {    super(null);    this.credentials = credentials;    this.principal = principal;  }  public SmsAuthenticationToken(Object principal, Object credentials,                        Collection<? extends GrantedAuthority> authorities) {    super(authorities);    this.principal = principal;    this.credentials = credentials;    // 表示已经认证    super.setAuthenticated(true);  } ...}

SmsAuthenticationProvider是仿照AbstractUserDetailsAuthenticationProvider编写的,这里仅仅列出核心部分。

public class SmsAuthenticationProvider implements AuthenticationProvider {  @Override  public Authentication authenticate(Authentication authentication)      throws AuthenticationException {   String username = authentication.getName();   UserDetails user = retrieveUser(username);   preAuthenticationChecks.check(user);   String phoneNumber = authentication.getPrincipal().toString();   String code = authentication.getCredentials().toString();   // 尝试从Redis中取出Model   SmsVerificationModel verificationModel =        Optional.ofNullable(            redisService.get(SMS_REDIS_PREFIX + phoneNumber, SmsVerificationModel.class))        .orElseThrow(() -> new BusinessException(OAuthError.SMS_VERIFY_BEFORE_SEND));  // 判断短信验证次数   Optional.of(verificationModel).filter(x -> x.getFailCount() < SMS_VERIFY_FAIL_MAX_TIMES)        .orElseThrow(() -> new BusinessException(OAuthError.SMS_VERIFY_COUNT_EXCEED));   Optional.of(verificationModel).map(SmsVerificationModel::getLastSentTime)        // 验证码发送15分钟内有效,等价于发送时间加上15分钟晚于当下        .filter(x -> DateUtils.addMinutes(x,15).after(new Date()))        .orElseThrow(() -> new BusinessException(OAuthError.SMS_CODE_EXPIRED));   verificationModel.setVerified(Objects.equals(code, verificationModel.getCaptcha()));   verificationModel.setFailCount(verificationModel.getFailCount() + 1);   redisService.set(SMS_REDIS_PREFIX + phoneNumber, verificationModel, 1, TimeUnit.DAYS);   if(!verificationModel.getVerified()){      throw new BusinessException(OAuthError.SmsCodeWrong);   }    postAuthenticationChecks.check(user);    return createSuccessAuthentication(user, authentication, user);  }  ...

接下来要通过配置启用我们定制的类,首先配置AuthorizationServerEndpointsConfigurer,添加上我们的TokenGranter,然后是AuthenticationManagerBuilder,添加我们的AuthenticationProvider。

@Configuration@EnableAuthorizationServerpublic class OAuth2Config extends AuthorizationServerConfigurerAdapter {  @Override  public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {    security        .passwordEncoder(passwordEncoder)        .checkTokenAccess("isAuthenticated()")        .tokenKeyAccess("permitAll()")        // 允许使用Query字段验证客户端,即client_id/client_secret 能够放在查询参数中        .allowFormAuthenticationForClients();  }  @Override  public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {    endpoints.authenticationManager(authenticationManager)        .userDetailsService(userDetailsService)        .tokenStore(tokenStore);    List<TokenGranter> tokenGranters = new ArrayList<>();    tokenGranters.add(new AuthorizationCodeTokenGranter(endpoints.getTokenServices(), endpoints.getAuthorizationCodeServices(), clientDetailsService,        endpoints.getOAuth2RequestFactory()));  ...    tokenGranters.add(new SmsTokenGranter(authenticationManager, endpoints.getTokenServices(),        clientDetailsService, endpoints.getOAuth2RequestFactory()));    endpoints.tokenGranter(new CompositeTokenGranter(tokenGranters));  }}
@EnableWebSecurity@Configurationpublic class SecurityConfig extends WebSecurityConfigurerAdapter { ...  @Override  protected void configure(AuthenticationManagerBuilder auth) {    auth.authenticationProvider(daoAuthenticationProvider());  }  @Bean  public AuthenticationProvider smsAuthenticationProvider(){    SmsAuthenticationProvider smsAuthenticationProvider = new SmsAuthenticationProvider();    smsAuthenticationProvider.setUserDetailsService(userDetailsService);    smsAuthenticationProvider.setSmsAuthService(smsAuthService);    return smsAuthenticationProvider;  }}

那么短信验证码授权的部分就到这里了,最后还有一个发送短信的接口,这里就不展示了。

最后测试一下,curl –location –request POST ‘http://localhost:8080/oauth/token?grant_type=sms&client_id=XXX&phone=手机号&code=验证码’ ,成功。

{  "access_token": "39bafa9a-7e5b-4ba4-9eda-e307ac98aad1",  "token_type": "bearer",  "expires_in": 3599,  "scope": "ALL"}

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Spring Security OAuth 自定义授权方式实现手机验证码

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