Cloned from launchpad blueprint https://blueprints.launchpad.net/swift/+spec/extend-container-acl-headers.

Description:

Add new type of headers to container server:

    X-Container-ACL-Read:
        This permission allows user to only read list of objects
        in container.

    X-Container-ACL-Read-ACP:
        This permission allows user to get the  list of ACL headers
        from container, but not list objects in container.

    X-Container-ACL-Write:
        This permission allows user to change container metadata
        and upload objects to container.

    X-Container-ACL-Write-ACP:
        This permission allows user to change container ACL
        headers.

ACP: access control permission.

This changes will work with tempauth and keystone auth middlewares. Deployments that use X-Container-Read and X-Container-Write headers will work as before.

These changes will allow for more granularity and will make container's ACL to be compliant with S3:
http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingACLsandBucketPoliciesTogether.html


Please proceed to https://review.openstack.org/#/c/39844/ for code review.

Specification URL (additional information):

None