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# Copyright (C) 2009-2014 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/>.
"""Personalized delivery."""
from __future__ import absolute_import, print_function, unicode_literals
__metaclass__ = type
__all__ = [
'PersonalizedDelivery',
'PersonalizedMixin',
]
from email.header import Header
from email.utils import formataddr
from zope.component import getUtility
from mailman.interfaces.mailinglist import Personalization
from mailman.interfaces.usermanager import IUserManager
from mailman.mta.verp import VERPDelivery
class PersonalizedMixin:
"""Personalize the message's To header.
This is a mixin class, providing the basic functionality for header
personalization. The methods it provides are intended to be called from a
concrete base class.
"""
def personalize_to(self, mlist, msg, msgdata):
"""Modify the To header to contain the recipient.
The To header contents is replaced with the recipient's address, and
if the recipient is a user registered with Mailman, the recipient's
real name too.
"""
# Personalize the To header if the list requests it.
if mlist.personalize != Personalization.full:
return
recipient = msgdata['recipient']
user_manager = getUtility(IUserManager)
user = user_manager.get_user(recipient)
if user is None:
msg.replace_header('To', recipient)
else:
# Convert the unicode name to an email-safe representation.
# Create a Header instance for the name so that it's properly
# encoded for email transport.
name = Header(user.display_name).encode()
msg.replace_header('To', formataddr((name, recipient)))
class PersonalizedDelivery(PersonalizedMixin, VERPDelivery):
"""Personalize the message's To header."""
def __init__(self):
"""See `IndividualDelivery`."""
super(PersonalizedDelivery, self).__init__()
self.callbacks.append(self.personalize_to)
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