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authorBarry Warsaw2009-01-25 13:01:41 -0500
committerBarry Warsaw2009-01-25 13:01:41 -0500
commiteefd06f1b88b8ecbb23a9013cd223b72ca85c20d (patch)
tree72c947fe16fce0e07e996ee74020b26585d7e846 /mailman/app/replybot.py
parent07871212f74498abd56bef3919bf3e029eb8b930 (diff)
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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/>.
-
-"""Application level auto-reply code."""
-
-# XXX This should undergo a rewrite to move this functionality off of the
-# mailing list. The reply governor should really apply site-wide per
-# recipient (I think).
-
-from __future__ import unicode_literals
-
-__metaclass__ = type
-__all__ = [
- 'autorespond_to_sender',
- 'can_acknowledge',
- ]
-
-import logging
-import datetime
-
-from mailman import Utils
-from mailman import i18n
-from mailman.config import config
-
-
-log = logging.getLogger('mailman.vette')
-_ = i18n._
-
-
-
-def autorespond_to_sender(mlist, sender, lang=None):
- """Return True if Mailman should auto-respond to this sender.
-
- This is only consulted for messages sent to the -request address, or
- for posting hold notifications, and serves only as a safety value for
- mail loops with email 'bots.
- """
- if lang is None:
- lang = mlist.preferred_language
- max_autoresponses_per_day = int(config.mta.max_autoresponses_per_day)
- if max_autoresponses_per_day == 0:
- # Unlimited.
- return True
- today = datetime.date.today()
- info = mlist.hold_and_cmd_autoresponses.get(sender)
- if info is None or info[0] <> today:
- # This is the first time we've seen a -request/post-hold for this
- # sender today.
- mlist.hold_and_cmd_autoresponses[sender] = (today, 1)
- return True
- date, count = info
- if count < 0:
- # They've already hit the limit for today, and we've already notified
- # them of this fact, so there's nothing more to do.
- log.info('-request/hold autoresponse discarded for: %s', sender)
- return False
- if count >= max_autoresponses_per_day:
- log.info('-request/hold autoresponse limit hit for: %s', sender)
- mlist.hold_and_cmd_autoresponses[sender] = (today, -1)
- # Send this notification message instead.
- text = Utils.maketext(
- 'nomoretoday.txt',
- {'sender' : sender,
- 'listname': mlist.fqdn_listname,
- 'num' : count,
- 'owneremail': mlist.owner_address,
- },
- lang=lang)
- with i18n.using_language(lang):
- msg = Message.UserNotification(
- sender, mlist.owner_address,
- _('Last autoresponse notification for today'),
- text, lang=lang)
- msg.send(mlist)
- return False
- mlist.hold_and_cmd_autoresponses[sender] = (today, count + 1)
- return True
-
-
-
-def can_acknowledge(msg):
- """A boolean specifying whether this message can be acknowledged.
-
- There are several reasons why a message should not be acknowledged, mostly
- related to competing standards or common practices. These include:
-
- * The message has a X-No-Ack header with any value
- * The message has an X-Ack header with a 'no' value
- * The message has a Precedence header
- * The message has an Auto-Submitted header and that header does not have a
- value of 'no'
- * The message has an empty Return-Path header, e.g. <>
- * The message has any RFC 2369 headers (i.e. List-* headers)
-
- :param msg: a Message object.
- :return: Boolean specifying whether the message can be acknowledged or not
- (which is different from whether it will be acknowledged).
- """
- # I wrote it this way for clarity and consistency with the docstring.
- for header in msg.keys():
- if header in ('x-no-ack', 'precedence'):
- return False
- if header.lower().startswith('list-'):
- return False
- if msg.get('x-ack', '').lower() == 'no':
- return False
- if msg.get('auto-submitted', 'no').lower() <> 'no':
- return False
- if msg.get('return-path') == '<>':
- return False
- return True