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from astakos.im.settings import BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH, BACKEND_DB_CONNECTION, BACKEND_DB_MODULE, BACKEND_QUOTA, BACKEND_VERSIONING

from pithos.backends import connect_backend

def get_backend():

    backend = connect_backend(db_module=BACKEND_DB_MODULE,

                              db_connection=BACKEND_DB_CONNECTION,

                              block_module=BACKEND_BLOCK_MODULE,

                              block_path=BACKEND_BLOCK_PATH)

    backend.default_policy['quota'] = BACKEND_QUOTA

    backend.default_policy['versioning'] = BACKEND_VERSIONING

    return backend

def get_quota(user):

    backend = get_backend()

    quota = backend.get_account_policy(user, user)['quota']

    backend.close()

    return quota

def set_quota(user, quota):

    backend = get_backend()

    backend.update_account_policy(user, user, {'quota': quota})

    backend.close()

    return quota