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https://issues.apache.org/jira/browse/CASSANDRA-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12893787#action_12893787
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Stu Hood commented on CASSANDRA-1237:
-------------------------------------
> Separation of concerns. I tried to make the argument yesterday that mixing KS
> definitions with KS permissions was not the right design.
Separation of concerns is not an argument for making it pluggable (pluggable
implies multiple implementations), although it is an argument for storing the
permissions somewhere other than in the metadata for the keyspace.
> Store AccessLevels externally to IAuthenticator
> -----------------------------------------------
>
> Key: CASSANDRA-1237
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1237
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Stu Hood
> Assignee: Stu Hood
> Fix For: 0.7 beta 1
>
> Attachments:
> 0001-Consolidate-KSMetaData-mutations-into-copy-methods.patch,
> 0002-Thrift-and-Avro-interface-changes.patch,
> 0003-Add-user-and-group-access-maps-to-Keyspace-metadata.patch,
> 0004-Remove-AccessLevel-return-value-from-login-and-retur.patch,
> 0005-Move-per-thread-state-into-a-ClientState-object-1-pe.patch,
> 0006-Apply-access.properties-to-keyspaces-during-an-upgra.patch,
> sample-usage.patch, simple-jaas-authenticator.patch
>
>
> Currently, the concept of authentication (proving the identity of a user) is
> mixed up with permissions (determining whether a user is able to
> create/read/write databases). Rather than determining the permissions that a
> user has, the IAuthenticator should only be capable of authenticating a user,
> and permissions (specifically, an AccessLevel) should be stored consistently
> by Cassandra.
> The primary goal of this ticket is to separate AccessLevels from
> IAuthenticators, and to persist a map of User->AccessLevel along with:
> * EDIT: Separating the addition of 'global scope' permissions into a separate
> ticket
> * each keyspace, where the AccessLevel continues to have its current meaning
> ----
> In separate tickets, we would like to improve the AccessLevel structure so
> that it can store role/permission bits independently, rather than being level
> based.
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