补充ABP Zero集成微信小程序登陆的BUG修复部分

感谢园友 @turingguo 发布的 https://www.cnblogs.com/turingguo/p/9019026.html  文章，详细介绍了ABP Zero集成微信小程序登陆的实现过程。

经测试，abp的外部登陆有几处bug，在此做记录。

1、xxxxWebHostModule.cs文件

         public override void PostInitialize()
         {

             if (!IocManager.Resolve<IMultiTenancyConfig>().IsEnabled)
             {
                 return;
             }

             if (!DatabaseCheckHelper.Exist(_appConfiguration["ConnectionStrings:Default"]))
             {
                 return;
             }

             var workManager = IocManager.Resolve<IBackgroundWorkerManager>();
             workManager.Add(IocManager.Resolve<SubscriptionExpirationCheckWorker>());
             workManager.Add(IocManager.Resolve<SubscriptionExpireEmailNotifierWorker>());

             ConfigureExternalAuthProviders();
         }

当启用多租户模式的情况下，租主站点没有将外部登陆的provider添加到集合中。

不未启用多租户模式时，第四行的逻辑判断又给跳过了。

因此将18行代码调整到第3行。

2、TokenAuthController文件

 public async Task<ExternalAuthenticateResultModel> ExternalAuthenticate([FromBody] ExternalAuthenticateModel model)
         {
             var externalUser = await GetExternalUserInfo(model);

             var loginResult = await _logInManager.LoginAsync(new UserLoginInfo(model.AuthProvider, externalUser.ProviderKey, model.AuthProvider), GetTenancyNameOrNull());

             switch (loginResult.Result)
             {
                 case AbpLoginResultType.Success:
                     {
                         var accessToken = CreateAccessToken(CreateJwtClaims(loginResult.Identity));

                         var returnUrl = model.ReturnUrl;

                         if (model.SingleSignIn.HasValue && model.SingleSignIn.Value && loginResult.Result == AbpLoginResultType.Success)
                         {
                             loginResult.User.SetSignInToken();
                             returnUrl = AddSingleSignInParametersToReturnUrl(model.ReturnUrl, loginResult.User.SignInToken, loginResult.User.Id, loginResult.User.TenantId);
                         }

                         return new ExternalAuthenticateResultModel
                         {
                             AccessToken = accessToken,
                             EncryptedAccessToken = GetEncrpyedAccessToken(accessToken),
                             ExpireInSeconds = (int)_configuration.Expiration.TotalSeconds,
                             ReturnUrl = returnUrl
                         };
                     }
                 case AbpLoginResultType.UnknownExternalLogin:
                     {
                         var newUser = await RegisterExternalUserAsync(externalUser);
                         if (!newUser.IsActive)
                         {
                             return new ExternalAuthenticateResultModel
                             {
                                 WaitingForActivation = true
                             };
                         }

                         //Try to login again with newly registered user!
                         loginResult = await _logInManager.LoginAsync(new UserLoginInfo(model.AuthProvider, externalUser.ProviderKey, model.AuthProvider), GetTenancyNameOrNull());
                         if (loginResult.Result != AbpLoginResultType.Success)
                         {
                             throw _abpLoginResultTypeHelper.CreateExceptionForFailedLoginAttempt(
                                 loginResult.Result,
                                 model.ProviderKey,
                                 GetTenancyNameOrNull()
                             );
                         }

                         var accessToken = CreateAccessToken(CreateJwtClaims(loginResult.Identity));
                         return new ExternalAuthenticateResultModel
                         {
                             AccessToken = accessToken,
                             EncryptedAccessToken = GetEncrpyedAccessToken(accessToken),
                             ExpireInSeconds = (int)_configuration.Expiration.TotalSeconds
                         };
                     }
                 default:
                     {
                         throw _abpLoginResultTypeHelper.CreateExceptionForFailedLoginAttempt(
                             loginResult.Result,
                             model.ProviderKey,
                             GetTenancyNameOrNull()
                         );
                     }
             }
         }

分别在第5行和41行，是用户外部登陆的过程。该两行代码的BUG是，登陆时使用了微信的accessCode当作providerKey登陆，方法是将 await GetExternalUserInfo(model) 返回的ProviderKey做为用户登陆就可以了。(以上代码是修改后的代码)