需求来源: 微信小程序获取授权码code, 通过授权码code, 获取微信用户信息(比如openid,unionId), 并记录登录状态(比如token信息的获取);
原本打算使用Spring Security中OAuth2.0的机制 实现用小程序登录,发现小程序再已经获取授权码code
登录流程和Spring Security中OAuth 2.0登录的流程有点不一样,所以直接使用spring security的Filter进行处理;
Spring Security中的OAuth 2.0 授权码模式:
获取授权码code
部分已经由小程序做过了, 现在我们无需再自己的服务oauth2去获取code,而是要直接去认证获取我们所需要的access_token 信息;
小程序已经持有了code,它依然需要将code传递给后端服务器来执行后面的流程。那么我们能不能利用图2中第3个调用redirectUri的步骤呢?换个角度来看问题第三方就是小程序反正它也是将一个code传递给了后端服务器,只要返回登录状态就行了,反正剩下的登录流程都跟小程序无关。我觉得它是可以的。在Spring Security中我们可以使用code通过tokenUri来换取token。那么在微信小程序登录流程中,code最终换取的只是登录态,没有特定的要求。但是后端肯定需要去获取用户的一些信息,比如openId,用户微信信息之类的。总之要根据微信平台提供的API来实现。通过改造tokenUri和userInfoUri可以做到这一点。
小程序实现Filter 过滤器链来完成, 基于ProxyFilter代理
默认的过滤器顺序列表
order | 过滤器名称 |
---|---|
100 | ChannelProcessingFilter |
200 | ConcurrentSessionFilter |
300 | SecurityContextPersistenceFilter |
400 | LogoutFilter |
500 | X509AuthenticationFilter |
600 | RequestHeaderAuthenticationFilter |
700 | CasAuthenticationFilter |
800 | UsernamePasswordAuthenticationFilter |
900 | OpenIDAuthenticationFilter |
1000 | DefaultLoginPageGeneratingFilter |
1100 | DigestAuthenticationFilter |
1200 | BasicAuthenticationFilter |
1300 | RequestCacheAwareFilter |
1400 | SecurityContextHolderAwareRequestFilter |
1500 | RememberMeAuthenticationFilter |
1600 | AnonymousAuthenticationFilter |
1700 | SessionManagementFilter |
1800 | ExceptionTranslationFilter |
1900 | FilterSecurityInterceptor |
2000 | SwitchUserFilter |
@Slf4j
public class LoginAuthenticationFilter extends AbstractAuthenticationProcessingFilter {
@Resource
private SecurityConfigProperties securityConfigProperties;
@Resource
private JwtConfigProperties jwtConfigProperties;
private Class> requestDataType;
public LoginAuthenticationFilter(AuthenticationManager authenticationManager,String loginPath) {
super(new AntPathRequestMatcher(loginPath));
super.setAuthenticationManager(authenticationManager);
}
@Override
public void afterPropertiesSet() {
Assert.notNull(securityConfigProperties.getRequestDataTypeName(), "登录请求数据类型必须被设定");
try {
this.requestDataType = Class.forName(securityConfigProperties.getRequestDataTypeName());
} catch (ClassNotFoundException var2) {
Assert.notNull(this.requestDataType, "登录请求数据类型必须是有效的类型");
}
super.afterPropertiesSet();
}
@Override
public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
ServletInputStream inputStream = request.getInputStream();
// String requestBody = StreamUtils.copyToString(inputStream, Charset.forName("UTF-8"));
Object requestData = new ObjectMapper().readValue(inputStream, this.requestDataType);
if (requestData != null) {
if (requestData instanceof Map) {
// 可以扩展不同的参数类型走不同的认证处理器; 比如走jwt的时候,会走JwtAuthenticationToken相关的认证处理器JwtAuthenticationProvider
}
// 此处不同引入的模块走自己的登录认证Provider
Authentication auth = this.getAuthenticationManager().authenticate((Authentication)requestData);
if (auth != null) {
UserDetails userDetail = (UserDetails)auth.getDetails();
request.setAttribute(jwtConfigProperties.getUserKey(), userDetail.getUsername());
return auth;
} else {
return null;
}
} else {
throw new RuntimeException("无授权用户信息");
}
}
@Override
public void destroy() {
if (log.isInfoEnabled()) {
log.info("正在注销......");
}
}
}
@Slf4j
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
@Autowired
private UserDetailsService userService;
@Resource
private JwtConfigProperties jwtConfigProperties;
@Resource
private TokenParser tokenParser;
private List permissiveRequestMatchers;
@Autowired
private JwtTokenService jwtTokenService;
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
String requestURI = request.getRequestURI();
if (log.isDebugEnabled()) {
log.debug("开始对请求:{}进行认证", requestURI);
}
if (!this.requireAuthentication(request)) {
filterChain.doFilter(request, response);
return;
}
// 获取 认证头
String authorizationHeader = request.getHeader(jwtConfigProperties.getAuthorizationHeaderName());
if (!checkIsTokenAuthorizationHeader(authorizationHeader)) {
log.debug("获取到认证头Authorization的值:[{}]但不是我们系统中登录后签发的。", authorizationHeader);
filterChain.doFilter(request, response);
return;
}
String token = JwtTokenOperator.getToken(request, jwtConfigProperties.getAuthorizationHeaderName(), jwtConfigProperties.getTokenHeaderPrefix());
JwtAuthInfo authInfo = tokenParser.parse(token, jwtConfigProperties.getTokenType());
if (authInfo == null) {
writeJson(response, "认证token不合法");
return;
}
if (authInfo.getRefreshToken()) {
writeJson(response, "认证token不合法,请勿直接用刷新token认证");
return;
}
String userKey = authInfo.getUserKey();
UserDetails user = this.userService.loadUserByUsername(userKey);
if (ObjectUtil.isEmpty(user)) {
writeJson(response, "用户不存在,无效令牌");
return;
}
if (authInfo.getExpirationTime() < System.currentTimeMillis()) {
// 令牌失效自动刷新令牌
handleTokenExpired(response, request);
}
// 构建认证对象
JwtAuthenticationToken jwtAuthToken = new JwtAuthenticationToken(user, authInfo, user.getAuthorities());
request.setAttribute(jwtConfigProperties.getSignatureKey(), userKey);
jwtAuthToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(
request));
SecurityContextHolder.getContext().setAuthentication(jwtAuthToken);
filterChain.doFilter(request, response);
}
/**
* 請求認證
* @param request
* @return
*/
private boolean requireAuthentication(HttpServletRequest request) {
String authHeader = request.getHeader(jwtConfigProperties.getAuthorizationHeaderName());
if (authHeader == null) {
if (log.isDebugEnabled()) {
log.debug("请求头中不包含令牌信息,所以将跳过认证");
}
return false;
}
if (CollectionUtil.isNotEmpty(this.permissiveRequestMatchers)) {
Iterator var2 = this.permissiveRequestMatchers.iterator();
while(var2.hasNext()) {
RequestMatcher matcher = (RequestMatcher)var2.next();
boolean isPermissiveUrl = matcher.matches(request);
if (isPermissiveUrl) {
if (log.isDebugEnabled()) {
log.debug("请求:{}为特权请求,将跳过认证", request.getRequestURI());
}
return false;
}
}
}
return true;
}
@Override
protected void initFilterBean() throws ServletException {
super.initFilterBean();
if (CollectionUtil.isNotEmpty(jwtConfigProperties.getPermissiveRequestUrls())) {
this.permissiveRequestMatchers = new ArrayList(jwtConfigProperties.getPermissiveRequestUrls().size());
Iterator var1 = jwtConfigProperties.getPermissiveRequestUrls().iterator();
while(var1.hasNext()) {
String url = (String)var1.next();
AntPathRequestMatcher matcher = new AntPathRequestMatcher(url);
this.permissiveRequestMatchers.add(matcher);
}
}
}
@Override
protected String getAlreadyFilteredAttributeName() {
if (log.isDebugEnabled()) {
log.debug("正在检查时否已经拦截过滤过");
}
String name = this.getClass().getName();
return name + ".FILTERED";
}
/**
* 判断是否是系统中登录后签发的token
*
* @param authorizationHeader
* @return
*/
private boolean checkIsTokenAuthorizationHeader(String authorizationHeader) {
if (StringUtils.isBlank(authorizationHeader)) {
return false;
}
if (!StringUtils.startsWith(authorizationHeader, jwtConfigProperties.getTokenHeaderPrefix())) {
return false;
}
return true;
}
/**
* 处理token过期情况
*
* @param response
* @param request
* @return
* @throws IOException
*/
private void handleTokenExpired(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
// 获取刷新 token
String refreshTokenHeader = request.getHeader(jwtConfigProperties.getRefreshHeaderName());
// 检测 refresh-token 是否是我们系统中签发的
if (!checkIsTokenAuthorizationHeader(refreshTokenHeader)) {
log.debug("获取到刷新认证头:[{}]的值:[{}]但不是我们系统中登录后签发的。", jwtConfigProperties.getRefreshHeaderName(), refreshTokenHeader);
writeJson(response, "token过期了,refresh token 不是我们系统签发的");
return;
}
String referToken = JwtTokenOperator.getToken(request,jwtConfigProperties.getRefreshHeaderName(),jwtConfigProperties.getTokenHeaderPrefix());
JwtAuthInfo authInfo = this.tokenParser.parse(referToken, jwtConfigProperties.getTokenType());
if (authInfo == null) {
writeJson(response, "refresh token不合法");
return;
}
// 判断 refresh-token 是否过期
if (authInfo.getExpirationTime() < System.currentTimeMillis()) {
writeJson(response, "refresh token 过期了");
return;
}
if (authInfo.getRefreshToken()) {
writeJson(response, "refresh token不合法,请勿直接用认证token刷新令牌");
return;
}
// 重新签发 token
authInfo.setEffectiveTime(0L);
String userToken = jwtTokenService.generateUserToken(authInfo);
// 刷新 refresh token, 刷新token,提供刷新token接口获取
// authInfo.setEffectiveTime(0L);
// String refreshToken = jwtTokenService.generateRefreshUserToken(authInfo);
response.addHeader(jwtConfigProperties.getAuthorizationHeaderName(), jwtConfigProperties.getTokenHeaderPrefix() + userToken);
// response.addHeader(jwtConfigProperties.getRefreshHeaderName(), jwtConfigProperties.getTokenHeaderPrefix() + refreshToken);
}
private void writeJson(HttpServletResponse response, String msg) throws IOException {
response.setCharacterEncoding(StandardCharsets.UTF_8.name());
response.setContentType(MediaType.APPLICATION_JSON_VALUE);
response.setStatus(HttpStatus.UNAUTHORIZED.value());
response.getWriter().println(JSONUtil.parse(CommonResult.buildFailure(StatusEnum.UNAUTHORIZED, msg)));
}
}
@Service
public class JwtTokenService {
@Resource
private JwtConfigProperties jwtConfigProperties;
private static String SECURITY_NAMESPACE_PREFIX = "security-auth";
public String generateUserToken(JwtAuthInfo auth) {
String token = this._generateUserToken(auth);
return token;
}
public JwtAuthInfo parseToken(String token) {
if (StringUtils.isNotBlank(jwtConfigProperties.getTokenHeaderPrefix()) && token.startsWith(jwtConfigProperties.getTokenHeaderPrefix())) {
token = token.substring(jwtConfigProperties.getTokenHeaderPrefix().length());
}
return (JwtAuthInfo) TokenParserRegistrar.getInstance().getParser(jwtConfigProperties.getTokenType()).parse(token, jwtConfigProperties.getSignatureKey(), jwtConfigProperties.getTokenType());
}
public String generateRefreshUserToken(JwtAuthInfo auth) {
long startTime = auth.getEffectiveTime();
if (startTime <= 0L) {
startTime = System.currentTimeMillis();
auth.setEffectiveTime(startTime);
auth.setIssueTime(startTime);
long expireTime = startTime + jwtConfigProperties.getRefreshTokenExpiredSecond();
auth.setExpirationTime(expireTime);
}
auth.setRefreshToken(true);
return generateCommonToken(auth, jwtConfigProperties.getAlgorithmName(), jwtConfigProperties.getSignatureKey());
}
private String _generateUserToken(JwtAuthInfo auth) {
long startTime = auth.getEffectiveTime();
if (startTime <= 0L) {
startTime = System.currentTimeMillis();
auth.setEffectiveTime(startTime);
auth.setIssueTime(startTime);
long expireTime = startTime + jwtConfigProperties.getTokenExpireSecond();
auth.setExpirationTime(expireTime);
}
auth.setRefreshToken(false);
String token = generateCommonToken(auth, jwtConfigProperties.getAlgorithmName(), jwtConfigProperties.getSignatureKey());
this.cacheToken(auth, token);
return token;
}
private void cacheToken(JwtAuthInfo jwtAuthInfo,String token) {
//String cacheKey = this.buildTokenCacheKey(userId, tokenId);
//this.redisTemplate.opsForValue().set(cacheKey, token);
//this.redisTemplate.expire(cacheKey, jwtConfigProperties.getRefreshInterval() + 5000L, TimeUnit.MILLISECONDS);
RedisUtils.setObject(buildTokenCacheKey(jwtAuthInfo), token, Integer.parseInt(String.valueOf(jwtConfigProperties.getTokenExpireSecond())));
}
private String buildTokenCacheKey(JwtAuthInfo jwtAuthInfo) {
return String.join(":",
SECURITY_NAMESPACE_PREFIX,
jwtAuthInfo.getApplicationKey(),
jwtAuthInfo.getUserKey());
}
public String fetchToken(JwtAuthInfo jwtAuthInfo) {
String cacheKey = this.buildTokenCacheKey(jwtAuthInfo);
String cachedToken = RedisUtils.getObject(cacheKey, String.class);
return cachedToken;
}
public String generateCommonToken(AuthInfo authInfo, String algorithm, String signatureKey) {
JwtAuthInfo jwtAuthInfo = (JwtAuthInfo)authInfo;
Map header = new HashMap();
header.put("alg", jwtConfigProperties.getAlgorithmName());
header.put("typ", "JWT");
JwtBuilder builder = Jwts.builder().setHeader(header).setHeaderParam("refresh_token", authInfo.getRefreshToken()).setSubject(jwtAuthInfo.getApplicationKey()).setId(jwtAuthInfo.getUserKey()).setIssuer(jwtAuthInfo.getIssuer()).setIssuedAt(new Date(jwtAuthInfo.getIssueTime())).setExpiration(new Date(jwtAuthInfo.getExpirationTime())).setNotBefore(new Date(jwtAuthInfo.getEffectiveTime())).setAudience(jwtAuthInfo.getTokenUser());
SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm.forName(algorithm);
builder.signWith(signatureAlgorithm, signatureKey);
return builder.compact();
}
}
@ConditionalOnProperty(name="security.enable",havingValue="true")
@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Resource
private SecurityConfigProperties securityConfigProperties;
@Resource
private JwtConfigProperties jwtConfigProperties;
@Resource
private UserDetailsService userDetailsService;
// 处理业务的认证管理器
@Resource
private List authenticationProviderList;
@Resource
private CustomerAuthenticationSuccessHandler customerAuthenticationSuccessHandler;
@Resource
private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
ExpressionUrlAuthorizationConfigurer.ExpressionInterceptUrlRegistry registry = httpSecurity
.authorizeRequests();
for (String url : securityConfigProperties.getUrls()) {
registry.antMatchers(url).permitAll();
}
//允许跨域请求的OPTIONS请求
registry.antMatchers(HttpMethod.OPTIONS).permitAll();
//任何请求需要身份认证
registry.and()
.authorizeRequests()
.antMatchers("/login").permitAll()
.antMatchers("/**/*.js").permitAll()
.antMatchers("/**/*.css").permitAll()
.antMatchers("/images/**").permitAll()
.antMatchers("/**/*.html").permitAll()
.antMatchers("/**/*.ftl").permitAll()
.antMatchers(jwtConfigProperties.getRefreshTokenUrl()).permitAll()
.anyRequest()
// 允许认证过的用户访问
.authenticated()
// 关闭跨站请求防护及不使用session
.and()
.csrf()
.disable()
// //因为使用JWT,所以不需要HttpSession
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
// 自定义权限拒绝处理类
.and()
//允许配置错误处理
.exceptionHandling()
.accessDeniedHandler(restfulAccessDeniedHandler())
.authenticationEntryPoint(restAuthenticationEntryPoint())
// 自定义权限拦截器JWT过滤器
.and()
.addFilterAt(loginAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class)//登录Filter
// 在指定的Filter类之前添加过滤器, 使用自定义的 Token过滤器 验证请求的Token是否合法
.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
}
@Bean
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
/**
* 省份认证接口
* @param auth 用来配置认证管理器AuthenticationManager
* 装配自定义的Provider
* @throws Exception
*/
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
// jwt; 多个就配置多个
for (CustomerAuthenticationProvider customerAuthenticationProvider : authenticationProviderList) {
auth.authenticationProvider(customerAuthenticationProvider);
}
// 此处自定义userDetailsService;
auth.userDetailsService(userDetailsService)
.passwordEncoder(passwordEncoder());
}
/**
* 强散列哈希加密实现
* @return
*/
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Bean
public LoginAuthenticationFilter loginAuthenticationFilter() throws Exception{
LoginAuthenticationFilter loginAuthenticationFilter = new LoginAuthenticationFilter(authenticationManagerBean(), securityConfigProperties.getLoginPath());
// 自定义实现login success
loginAuthenticationFilter.setAuthenticationSuccessHandler(customerAuthenticationSuccessHandler);
return loginAuthenticationFilter;
}
@Bean
public RestfulAccessDeniedHandler restfulAccessDeniedHandler() {
return new RestfulAccessDeniedHandler();
}
@Bean
public RestAuthenticationEntryPoint restAuthenticationEntryPoint() {
return new RestAuthenticationEntryPoint();
}
@Slf4j
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {
@Override
public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json");
log.info(request.getRequestURI() + authException.getMessage());
response.getWriter().println(JSONUtil.parse(CommonResult.buildFailure(StatusEnum.UNAUTHORIZED)));
response.getWriter().flush();
}
}
@Slf4j
public class RestfulAccessDeniedHandler implements AccessDeniedHandler{
@Override
public void handle(HttpServletRequest request,
HttpServletResponse response,
AccessDeniedException e) throws IOException, ServletException {
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json");
log.info(request.getRequestURI() + e.getMessage());
response.getWriter().println(JSONUtil.parse(CommonResult.buildFailure(StatusEnum.NO_OPERATION_PERMISSION)));
response.getWriter().flush();
}
}
jwt配置
@Component
@Data
public class JwtConfigProperties {
@Value("${jwt.token-type:jwt}")
private String tokenType;
@Value("${jwt.authorization-header-name:Authorization}")
private String authorizationHeaderName;
// jwt 放开的请求
@Value("#{'${jwt.permissive-request-urls:login}'.split(',')}")
private List permissiveRequestUrls;
@Value("${jwt.signature-algorithm:HS256}")
private String algorithmName;
@Value("${jwt.token-header-prefix:Bearer }")
private String tokenHeaderPrefix = "Bearer ";
@Value("${jwt.signature-key:xxxxx}")
private String signatureKey;
@Value("${jwt.token-expire-second:300000}")
private Long tokenExpireSecond = 300000L;
@Value("${jwt.refresh-token-url:/**/token/refresh}")
private String refreshTokenUrl;
@Value("${jwt.refresh-token-expired-second:400000}")
private Long refreshTokenExpiredSecond= 86400000L;
@Value("${jwt.refresh-header-name:Refresh-Token}")
private String refreshHeaderName;
@Value("${jwt.user-key:userKey}")
private String userKey;
}
@Getter
@Setter
@Component
public class SecurityConfigProperties {
@Value("#{'${security.url.ignored:login}'.split(',')}")
private List urls = new ArrayList<>();
@Value("${security.url.login.path:wx/login}")
private String loginPath;
@Value("${security.url.login.request-data-type}")
private String requestDataTypeName;
}
#####设置认证类
@Getter
@Setter
public class DefaultMiniprogramAuthenticationData extends AbstractAuthenticationToken {
private static final long serialVersionUID = 1L;
/**小程序访问Code*/
private String accessCode;;
/**小程序会话key*/
private String sessionKey;
/**小程序openId*/
private String openId;
/**小程序unionId*/
private String unionId;
public DefaultMiniprogramAuthenticationData() {
super(Collections.emptyList());
}
public DefaultMiniprogramAuthenticationData(MiniprogramUserDetail user, String sessionKey) {
super(Collections.emptyList());
super.setDetails(user);
super.setAuthenticated(true);
this.sessionKey = sessionKey;
}
@Override
public Object getPrincipal() {
return this.getDetails();
}
@Override
public Object getCredentials() {
return this.accessCode;
}
}
@Component
@Slf4j
public class MiniprogramAuthenticationProvider implements CustomerAuthenticationProvider {
@Autowired
private ProgramWechatUserManager programWechatUserManager;
@Autowired
private MiniprogramAccountService miniprogramAccountService;
@Autowired
private ApplicationProperties applicationProperties;
@Autowired
private ProgramConfigProperties programConfigProperties;
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
log.info("MiniprogramAuthenticationProvider");
if (!(authentication instanceof DefaultMiniprogramAuthenticationData)) {
return null;
}
DefaultMiniprogramAuthenticationData authenticationToken = (DefaultMiniprogramAuthenticationData)authentication;
String accessCode = authenticationToken.getAccessCode();
try {
UserinfoResponse userInfo = programWechatUserManager.getUserInfo(accessCode);
if (userInfo == null) {
if (log.isErrorEnabled()) {
log.error("使用访问令牌{}无法获取到用户信息", accessCode);
}
throw new BadCredentialsException("无法识别用户");
} else {
String sessionKey = userInfo.getSessionKey();
String openId = userInfo.getOpenid();
String unionId = userInfo.getUnionid();
DefaultMiniprogramAuthenticationData authenticationProgramToken = new DefaultMiniprogramAuthenticationData(new MiniprogramUserDetail(miniprogramAccount), sessionKey);
authenticationToken.setUnionId(unionId);
authenticationToken.setOpenId(openId);
return authenticationProgramToken;
}
} catch (Exception var10) {
throw new RuntimeException(var10);
}
}
@Override
public boolean supports(Class> authentication) {
return authentication.isAssignableFrom(DefaultMiniprogramAuthenticationData.class);
}
}