无需用户输入的 Azure AD B2C 注册

Question

我已将 Azure AD B2C 设置为允许用户使用自定义策略从“常规”AAD 目录进行身份验证，如下所述https://learn.microsoft.com/en-us/azure/active-directory-b2c/active-目录-b2c-setup-aad-自定义。在一种情况下，我希望用户进行注册（使用其 AAD 凭据进行身份验证，在 AAD B2C 目录中创建相应的对象，并将 objectidentifier 作为声明传递给我的应用程序），而不提供任何进一步的信息。从示例开始，我无法弄清楚如何完全跳过自我断言步骤。我尝试过的两种方法是

1) 删除SelfAsserted-Social ClaimsExchange，以及 2) 修改（实际上是复制到 TrustFrameworkExtensions、重命名和编辑）SelfAsserted-Social和AAD-UserReadUsingObjectId ClaimsExchanges，以便唯一的 OutputClaim 条目不需要用户提示。

在这两种方法中，从 UI 角度来看，注册似乎都有效，但不会在 B2C 目录中创建用户对象。使用 App Insights，在两种方法中AAD-UserReadUsingObjectId似乎都会生成Microsoft.Cpim.Common.PolicyException。

完整的用户旅程是

<UserJourney Id="SignUpAAD">
      <OrchestrationSteps>
        <OrchestrationStep Order="1" Type="CombinedSignInAndSignUp" ContentDefinitionReferenceId="api.signuporsignin">
          <ClaimsProviderSelections>
            <ClaimsProviderSelection TargetClaimsExchangeId="KDEWEbAppTestExchange"   />
          </ClaimsProviderSelections>
        </OrchestrationStep>

        <OrchestrationStep Order="2" Type="ClaimsExchange">
          <ClaimsExchanges>
            <ClaimsExchange Id="KDEWebAppTestExchange" TechnicalProfileReferenceId="KDEWebAppTestProfile" />
          </ClaimsExchanges>
        </OrchestrationStep>

        <OrchestrationStep Order="3" Type="ClaimsExchange">
           <ClaimsExchanges>
            <ClaimsExchange Id="AADUserReadUsingAlternativeSecurityId" TechnicalProfileReferenceId="AAD-UserReadUsingAlternativeSecurityId-NoError" />
          </ClaimsExchanges>
        </OrchestrationStep>

         <!-- prepare ground for searching for user -->
        <OrchestrationStep Order="4" Type="ClaimsExchange">
          <ClaimsExchanges>
            <ClaimsExchange Id="SelfAsserted-Social-Silent" TechnicalProfileReferenceId="SelfAsserted-Social-Silent" />
          </ClaimsExchanges>
        </OrchestrationStep>

        <!-- This step reads any user attributes that we may not have received when authenticating using ESTS so they can be sent 
          in the token. -->
        <OrchestrationStep Order="5" Type="ClaimsExchange">
          <ClaimsExchanges>
            <ClaimsExchange Id="AADUserReadWithObjectId" TechnicalProfileReferenceId="AAD-UserReadUsingObjectIdLimited" />
          </ClaimsExchanges>
        </OrchestrationStep>

        <!-- create the user in the directory if one does not already exist 
             (verified using objectId which would be set from the last step if account was created in the directory. -->
        <OrchestrationStep Order="6" Type="ClaimsExchange">
          <ClaimsExchanges>
            <ClaimsExchange Id="AADUserWrite" TechnicalProfileReferenceId="AAD-UserWriteUsingAlternativeSecurityId" />
          </ClaimsExchanges>
        </OrchestrationStep>

        <OrchestrationStep Order="7" Type="SendClaims" CpimIssuerTechnicalProfileReferenceId="JwtIssuer" />

      </OrchestrationSteps> 
    </UserJourney>

有任何想法吗？

谢谢

马丁

Answer 1

您必须将编排步骤 4 替换为以下编排步骤：

<OrchestrationStep Order="4" Type="ClaimsExchange">
  <Preconditions>
    <Precondition Type="ClaimsExist" ExecuteActionsIf="true">
      <Value>objectId</Value>
      <Action>SkipThisOrchestrationStep</Action>
    </Precondition>
  </Preconditions>
  <ClaimsExchanges>
    <ClaimsExchange Id="AAD-UserWriteUsingAlternativeSecurityId" TechnicalProfileReferenceId="AAD-UserWriteUsingAlternativeSecurityId" />
  </ClaimsExchanges>
</OrchestrationStep>

如果在编排步骤 3 中未检索到用户对象（即“objectId”声明不存在），则此编排步骤将创建一个用户对象。