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# Copyright (C) 2007-2014 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/>.
"""A mailing list manager."""
from __future__ import absolute_import, print_function, unicode_literals
__metaclass__ = type
__all__ = [
'ListManager',
]
from zope.event import notify
from zope.interface import implementer
from mailman.database.transaction import dbconnection
from mailman.interfaces.address import InvalidEmailAddressError
from mailman.interfaces.listmanager import (
IListManager, ListAlreadyExistsError, ListCreatedEvent, ListCreatingEvent,
ListDeletedEvent, ListDeletingEvent)
from mailman.model.mailinglist import MailingList
from mailman.utilities.datetime import now
@implementer(IListManager)
class ListManager:
"""An implementation of the `IListManager` interface."""
@dbconnection
def create(self, store, fqdn_listname):
"""See `IListManager`."""
fqdn_listname = fqdn_listname.lower()
listname, at, hostname = fqdn_listname.partition('@')
if len(hostname) == 0:
raise InvalidEmailAddressError(fqdn_listname)
list_id = '{0}.{1}'.format(listname, hostname)
notify(ListCreatingEvent(fqdn_listname))
mlist = store.find(
MailingList,
MailingList._list_id == list_id).one()
if mlist:
raise ListAlreadyExistsError(fqdn_listname)
mlist = MailingList(fqdn_listname)
mlist.created_at = now()
store.add(mlist)
notify(ListCreatedEvent(mlist))
return mlist
@dbconnection
def get(self, store, fqdn_listname):
"""See `IListManager`."""
listname, at, hostname = fqdn_listname.partition('@')
list_id = '{0}.{1}'.format(listname, hostname)
return store.find(MailingList, MailingList._list_id == list_id).one()
@dbconnection
def get_by_list_id(self, store, list_id):
"""See `IListManager`."""
return store.find(MailingList, MailingList._list_id == list_id).one()
@dbconnection
def delete(self, store, mlist):
"""See `IListManager`."""
fqdn_listname = mlist.fqdn_listname
notify(ListDeletingEvent(mlist))
store.remove(mlist)
notify(ListDeletedEvent(fqdn_listname))
@property
@dbconnection
def mailing_lists(self, store):
"""See `IListManager`."""
for mlist in store.find(MailingList):
yield mlist
@dbconnection
def __iter__(self, store):
"""See `IListManager`."""
for mlist in store.find(MailingList):
yield mlist
@property
@dbconnection
def names(self, store):
"""See `IListManager`."""
result_set = store.find(MailingList)
for mail_host, list_name in result_set.values(MailingList.mail_host,
MailingList.list_name):
yield '{0}@{1}'.format(list_name, mail_host)
@property
@dbconnection
def list_ids(self, store):
"""See `IListManager`."""
result_set = store.find(MailingList)
for list_id in result_set.values(MailingList._list_id):
yield list_id
@property
@dbconnection
def name_components(self, store):
"""See `IListManager`."""
result_set = store.find(MailingList)
for mail_host, list_name in result_set.values(MailingList.mail_host,
MailingList.list_name):
yield list_name, mail_host
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