如何在JWT中包含经过身份验证的用户角色?

时间:2020-06-02 15:12:55

标签: cas apereo

我已将CAS配置为OAuth2服务器。成功登录后,它将返回JWT,但JWT中的role字段始终为空,例如;

{
"sub": "dg",
...
"roles": [],
"nonce": "",
"client_id": "first-client",
"credentialType": "UsernamePasswordCredential",
...

}

我登录时如何在JWT中获取身份验证的用户角色并将其放置在JWT中?

这是我的示例服务注册表;

{
  "@class" : "org.apereo.cas.support.oauth.services.OAuthRegisteredService",
  "serviceId" : "http://localhost:8085/.*",
  "name" : "CAS Spring Secured App",
  "description": "This is a Spring App that usses the CAS Server for its authentication",
  "id" : 1,
  "evaluationOrder" : 1,
  "bypassApprovalPrompt": true,
  "jwtAccessToken": true,
  "clientId": "first-client",
  "clientSecret": "noonewilleverguess",
  "supportedGrantTypes": [ "java.util.HashSet", [ "authorization_code" ] ],
  "supportedResponseTypes": [ "java.util.HashSet", [ "code" ] ]
}

感谢帮助。

1 个答案:

答案 0 :(得分:0)

我找到了解决方案。从CAS博客(top/down),

如今,CAS无法直接将属性作为身份验证的一部分进行检索,因此我们需要设置一个单独的属性存储库实例,一旦用户经过完全身份验证,CAS将与该实例联系。

因此,我们需要使用属性存储库(它具有ldap,jdbc,stub ... https://apereo.github.io/2017/02/22/cas51-dbauthn-tutorial/等许多类型)

我已经为属性存储库配置了jdbc。 (PostgreSQL作为数据库)

首先,您需要向build.gradle添加两个依赖项

compile "org.apereo.cas:cas-server-support-jdbc:${casServerVersion}"
compile "org.apereo.cas:cas-server-support-jdbc-drivers:${casServerVersion}"

然后,创建用于获取属性的数据库。例如,名为my_roles

id (serial) | user_name (varchar(50)) | role_name (text[])
----------------------------------------------------------
    1       |       dg                | {'ROLE_READ', 'ROLE_WRITE'}

然后,像这样配置属性存储库

cas.authn.attribute-repository.jdbc[0].sql=SELECT * FROM my_roles WHERE {0}
cas.authn.attribute-repository.jdbc[0].username=user_name

cas.authn.attribute-repository.jdbc[0].user=postgres
cas.authn.attribute-repository.jdbc[0].password=postgres
cas.authn.attribute-repository.jdbc[0].url=jdbc:postgresql://localhost:5432/customer
cas.authn.attribute-repository.jdbc[0].driverClass=org.postgresql.Driver
cas.authn.attribute-repository.jdbc[0].dialect=org.hibernate.dialect.PostgreSQL95Dialect

最后,不要忘记将发布策略添加到服务注册表中。

{
  ...
  "attributeReleasePolicy" : {
    "@class" : "org.apereo.cas.services.ReturnAllowedAttributeReleasePolicy",
    "allowedAttributes" : [ "java.util.ArrayList", [ "role_name" ] ]
  }
}

所以,这是结果;

{
  "sub": "dg",
   ...
  "role_name":
  [
    "ROLE_WRITE",
    "ROLE_READ"
  ],
  "aud": "http://localhost:8085/login/oauth2/code/login-client",
  "grant_type": "AUTHORIZATION_CODE",
  ...
}