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# Copyright (C) 2011-2017 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/>.
"""Utility for generating all the aliases of a mailing list."""
from mailman.interfaces.mta import IMailTransportAgentAliases
from public import public
from zope.interface import implementer
SUBDESTINATIONS = (
'bounces',
'confirm',
'join',
'leave',
'owner',
'request',
'subscribe',
'unsubscribe',
)
@public
@implementer(IMailTransportAgentAliases)
class MailTransportAgentAliases:
"""Utility for generating all the aliases of a mailing list."""
def aliases(self, mlist):
"""See `IMailTransportAgentAliases`."""
# Always return
yield mlist.posting_address
for destination in sorted(SUBDESTINATIONS):
yield '{}-{}@{}'.format(
mlist.list_name, destination, mlist.mail_host)
def destinations(self, mlist):
"""See `IMailTransportAgentAliases`."""
# Always return
yield mlist.list_name
for destination in sorted(SUBDESTINATIONS):
yield '{}-{}'.format(mlist.list_name, destination)
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