[jira] [Created] (SOLR-12131) Authorization plugin support for getting user's roles from the outside

["Jan Høydahl (JIRA)" <ji...@apache.org>]

Jan Høydahl created SOLR-12131:
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             Summary: Authorization plugin support for getting user's roles from the outside
                 Key: SOLR-12131
                 URL: https://issues.apache.org/jira/browse/SOLR-12131
             Project: Solr
          Issue Type: New Feature
      Security Level: Public (Default Security Level. Issues are Public)
          Components: security
            Reporter: Jan Høydahl


Currently the {{RuleBasedAuthorizationPlugin}} relies on explicitly mapping users to roles. However, when users are authenticated by an external Identity service (e.g. JWT as implemented in SOLR-12121), that external service keeps track of the user's roles, and will pass that as a "claim" in the token (JWT).

In order for Solr to be able to Authorise requests based on those roles, the Authorization plugin should be able to accept (verified) roles from the request instead of explicit mapping.

Suggested approach is to create a new interface {{VerifiedUserRoles}} and a {{PrincipalWithUserRoles}} which implements the interface. The Authorization plugin can then pull the roles from request. By piggy-backing on the Principal, we have a seamless way to transfer extra external information, and there is also a natural relationship:
{code:java}
User Authentication -> Role validation -> Creating a Principal{code}
I plan to add the interface, the custom Principal class and restructure {{RuleBasedAuthorizationPlugin}} in an abstract base class and two implementations: {{RuleBasedAuthorizationPlugin}} (as today) and a new {{ExternalRoleRuleBasedAuthorizationPlugin.}}



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