// 自定義 WeChatAuthenticationProvider
public class WeChatAuthenticationProvider ?implements AuthenticationProvider {

? ? private UserDetailsService userDetailsService;

? ? public WeChatAuthenticationProvider(UserDetailsService userDetailsService){
? ? ? ? this.userDetailsService = userDetailsService;
? ? }

? ? @Override
? ? public Authentication authenticate(Authentication authentication) throws AuthenticationException {
? ? ? ? WeChatAuthenticationToken authenticationToken = (WeChatAuthenticationToken) authentication;

? ? ? ? String userId = (String) authenticationToken.getPrincipal();

? ? ? ? UserDetails userDetails = userDetailsService.loadUserByUsername(userId);

? ? ? ? // 此時鑒權(quán)成功后，應(yīng)當(dāng)重新 new 一個擁有鑒權(quán)的 authenticationResult 返回
? ? ? ? BrowserAuthenticationToken authenticationResult = new BrowserAuthenticationToken(userDetails, userDetails.getAuthorities());

? ? ? ? authenticationResult.setDetails(authenticationToken.getDetails());

? ? ? ? return authenticationResult;
? ? }


? ? @Override
? ? public boolean supports(Class<?> authentication) {
? ? ? ? // 判斷 authentication 是不是 SmsCodeAuthenticationToken 的子類或子接口
? ? ? ? return WeChatAuthenticationToken.class.isAssignableFrom(authentication);
? ? }

? ? public UserDetailsService getUserDetailsService() {
? ? ? ? return userDetailsService;
? ? }

? ? public void setUserDetailsService(UserDetailsService userDetailsService) {
? ? ? ? this.userDetailsService = userDetailsService;
? ? }
}

// 重寫 UserDetailsService
? ? @Override
? ? public UserDetails loadUserByUsername(String code) throws UsernameNotFoundException {
? ? ? ? String weChatUserId = weChatService.getWeChatUserId(code);
? ? ? ? LambdaQueryWrapper<SysUserWechat> lambda = new QueryWrapper<SysUserWechat>().lambda();
? ? ? ? lambda.eq(SysUserWechat::getDeleted, DataStatusEnum.NORMAL.getCode());
? ? ? ? lambda.eq(SysUserWechat::getWechatId,weChatUserId);
? ? ? ? List<SysUserWechat> sysUserWechats = sysUserWechatService.list(lambda);

? ? ? ? if(CollectionUtils.isEmpty(sysUserWechats)){
? ? ? ? ? ? throw new ServiceException(GOOGLE_AUTHENTICATOR_601001.getMsg(),GOOGLE_AUTHENTICATOR_601001.getCode());
? ? ? ? }
? ? ? ? SysUserWechat sysUserWechat = sysUserWechats.get(0);
? ? ? ? Long sysUserId = sysUserWechat.getSysUserId();
? ? ? ? SysUser sysUser = userService.selectUserById(sysUserId);
? ? ? ? if (StringUtils.isNull(sysUser)) {
? ? ? ? ? ? throw new ServiceException(GOOGLE_AUTHENTICATOR_601001.getMsg(),GOOGLE_AUTHENTICATOR_501001.getCode());
? ? ? ? }
? ? ? ? if (UserStatus.DELETED.getCode().equals(sysUser.getDelFlag())) {
? ? ? ? ? ? throw new ServiceException(GOOGLE_AUTHENTICATOR_601001.getMsg(),GOOGLE_AUTHENTICATOR_501001.getCode());
? ? ? ? }
? ? ? ? if (UserStatus.DISABLE.getCode().equals(sysUser.getStatus())) {
? ? ? ? ? ? throw new ServiceException(GOOGLE_AUTHENTICATOR_601001.getMsg(),GOOGLE_AUTHENTICATOR_501001.getCode());
? ? ? ? }

? ? ? ? return createLoginUser(sysUser);
? ? }