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path: root/src/mailman/interfaces/registrar.py
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# Copyright (C) 2007-2009 by the Free Software Foundation, Inc.
#
# This file is part of GNU Mailman.
#
# GNU Mailman is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.

"""Interface describing a user registration service.

This is a higher level interface to user registration, address confirmation,
etc. than the IUserManager.  The latter does no validation, syntax checking,
or confirmation, while this interface does.
"""

from __future__ import absolute_import, unicode_literals

__metaclass__ = type
__all__ = [
    'IRegistrar',
    ]


from zope.interface import Interface



class IRegistrar(Interface):
    """Interface for registering and verifying addresses and users.

    This is a higher level interface to user registration, address
    confirmation, etc. than the IUserManager.  The latter does no validation,
    syntax checking, or confirmation, while this interface does.
    """

    def register(address, real_name=None, mlist=None):
        """Register the email address, requesting verification.

        No IAddress or IUser is created during this step, but after successful
        confirmation, it is guaranteed that an IAddress with a linked IUser
        will exist.  When a verified IAddress matching address already exists,
        this method will do nothing, except link a new IUser to the IAddress
        if one is not yet associated with the address.

        In all cases, the email address is sanity checked for validity first.

        :param address: The textual email address to register.
        :param real_name: The optional real name of the user.
        :return: The confirmation token string.
        :raises InvalidEmailAddress: if the address is not allowed.
        """

    def confirm(token):
        """Confirm the pending registration matched to the given `token`.

        Confirmation ensures that the IAddress exists and is linked to an
        IUser, with the latter being created and linked if necessary.

        :param token: A token matching a pending event with a type of
            'registration'.
        :return: Boolean indicating whether the confirmation succeeded or
            not.  It may fail if the token is no longer in the database, or if
            the token did not match a registration event.
        """

    def discard(token):
        """Discard the pending registration matched to the given `token`.

        The event record is discarded and the IAddress is not verified.  No
        IUser is created.

        :param token: A token matching a pending event with a type of
            'registration'.
        """