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authorBarry Warsaw2008-02-27 01:26:18 -0500
committerBarry Warsaw2008-02-27 01:26:18 -0500
commita1c73f6c305c7f74987d99855ba59d8fa823c253 (patch)
tree65696889450862357c9e05c8e9a589f1bdc074ac /Mailman/pipeline/replybot.py
parent3f31f8cce369529d177cfb5a7c66346ec1e12130 (diff)
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-# Copyright (C) 1998-2008 by the Free Software Foundation, Inc.
-#
-# This program 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 2
-# of the License, or (at your option) any later version.
-#
-# This program 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 this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-# USA.
-
-"""Handler for auto-responses."""
-
-__metaclass__ = type
-__all__ = ['Replybot']
-
-
-import time
-import logging
-import datetime
-
-from string import Template
-from zope.interface import implements
-
-from Mailman import Message
-from Mailman import Utils
-from Mailman.i18n import _
-from Mailman.interfaces import IHandler
-
-
-log = logging.getLogger('mailman.error')
-NODELTA = datetime.timedelta()
-
-
-
-def process(mlist, msg, msgdata):
- # Normally, the replybot should get a shot at this message, but there are
- # some important short-circuits, mostly to suppress 'bot storms, at least
- # for well behaved email bots (there are other governors for misbehaving
- # 'bots). First, if the original message has an "X-Ack: No" header, we
- # skip the replybot. Then, if the message has a Precedence header with
- # values bulk, junk, or list, and there's no explicit "X-Ack: yes" header,
- # we short-circuit. Finally, if the message metadata has a true 'noack'
- # key, then we skip the replybot too.
- ack = msg.get('x-ack', '').lower()
- if ack == 'no' or msgdata.get('noack'):
- return
- precedence = msg.get('precedence', '').lower()
- if ack <> 'yes' and precedence in ('bulk', 'junk', 'list'):
- return
- # Check to see if the list is even configured to autorespond to this email
- # message. Note: the mailowner script sets the `toadmin' or `toowner' key
- # (which for replybot purposes are equivalent), and the mailcmd script
- # sets the `torequest' key.
- toadmin = msgdata.get('toowner')
- torequest = msgdata.get('torequest')
- if ((toadmin and not mlist.autorespond_admin) or
- (torequest and not mlist.autorespond_requests) or \
- (not toadmin and not torequest and not mlist.autorespond_postings)):
- return
- # Now see if we're in the grace period for this sender. graceperiod <= 0
- # means always autorespond, as does an "X-Ack: yes" header (useful for
- # debugging).
- sender = msg.get_sender()
- now = time.time()
- graceperiod = mlist.autoresponse_graceperiod
- if graceperiod > NODELTA and ack <> 'yes':
- if toadmin:
- quiet_until = mlist.admin_responses.get(sender, 0)
- elif torequest:
- quiet_until = mlist.request_responses.get(sender, 0)
- else:
- quiet_until = mlist.postings_responses.get(sender, 0)
- if quiet_until > now:
- return
- # Okay, we know we're going to auto-respond to this sender, craft the
- # message, send it, and update the database.
- realname = mlist.real_name
- subject = _(
- 'Auto-response for your message to the "$realname" mailing list')
- # Do string interpolation into the autoresponse text
- d = dict(listname = realname,
- listurl = mlist.script_url('listinfo'),
- requestemail = mlist.request_address,
- owneremail = mlist.owner_address,
- )
- if toadmin:
- rtext = mlist.autoresponse_admin_text
- elif torequest:
- rtext = mlist.autoresponse_request_text
- else:
- rtext = mlist.autoresponse_postings_text
- # Interpolation and Wrap the response text.
- text = Utils.wrap(Template(rtext).safe_substitute(d))
- outmsg = Message.UserNotification(sender, mlist.bounces_address,
- subject, text, mlist.preferred_language)
- outmsg['X-Mailer'] = _('The Mailman Replybot')
- # prevent recursions and mail loops!
- outmsg['X-Ack'] = 'No'
- outmsg.send(mlist)
- # update the grace period database
- if graceperiod > NODELTA:
- # graceperiod is in days, we need # of seconds
- quiet_until = now + graceperiod * 24 * 60 * 60
- if toadmin:
- mlist.admin_responses[sender] = quiet_until
- elif torequest:
- mlist.request_responses[sender] = quiet_until
- else:
- mlist.postings_responses[sender] = quiet_until
-
-
-
-class Replybot:
- """Send automatic responses."""
-
- implements(IHandler)
-
- name = 'replybot'
- description = _('Send automatic responses.')
-
- def process(self, mlist, msg, msgdata):
- """See `IHandler`."""
- process(mlist, msg, msgdata)