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  • # Copyright 2019 PrivateStorage.io, LLC
    #
    # Licensed under the Apache License, Version 2.0 (the "License");
    # you may not use this file except in compliance with the License.
    # You may obtain a copy of the License at
    #
    #     http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
    
    """
    The Twisted plugin that glues the Secure Access Token system into
    Tahoe-LAFS.
    """
    
    from zope.interface import (
        implementer,
    )
    
    from allmydata.interfaces import (
        IFoolscapStoragePlugin,
    )
    
    from . import (
        SecureAccessTokenAuthorizerStorageServer,
    )
    
    @implementer(IFoolscapStoragePlugin)
    class SecureAccessTokenAuthorizer(object):
        """
        A storage plugin which provides a token-based access control mechanism on
        top of the Tahoe-LAFS built-in storage server interface.
        """
        name = u"privatestorageio-satauthz-v1"
    
        def get_storage_server(self, configuration, get_anonymous_storage_server):
            return SecureAccessTokenAuthorizerStorageServer(
                get_anonymous_storage_server(),
                **configuration,
            )
    
        def get_storage_client(self, configuration, announcement):
            raise NotImplementedError()