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# Copyright (C) 2000-2008 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.
"""Archive queue runner."""
from __future__ import with_statement
__metaclass__ = type
__all__ = [
'ArchiveRunner',
]
import os
import time
from datetime import datetime
from email.Utils import parsedate_tz, mktime_tz, formatdate
from locknix.lockfile import Lock
from mailman.app.plugins import get_plugins
from mailman.configuration import config
from mailman.queue import Runner
class ArchiveRunner(Runner):
QDIR = config.ARCHQUEUE_DIR
def _dispose(self, mlist, msg, msgdata):
# Support clobber_date, i.e. setting the date in the archive to the
# received date, not the (potentially bogus) Date: header of the
# original message.
clobber = False
original_date = msg.get('date')
received_time = formatdate(msgdata['received_time'])
if not original_date:
clobber = True
elif config.ARCHIVER_CLOBBER_DATE_POLICY == 1:
clobber = True
elif config.ARCHIVER_CLOBBER_DATE_POLICY == 2:
# What's the timestamp on the original message?
timetup = parsedate_tz(original_date)
now = datetime.now()
try:
if not timetup:
clobber = True
else:
utc_timestamp = datetime.fromtimestamp(mktime_tz(timetup))
clobber = (abs(now - utc_timestamp) >
config.ARCHIVER_ALLOWABLE_SANE_DATE_SKEW)
except (ValueError, OverflowError):
# The likely cause of this is that the year in the Date: field
# is horribly incorrect, e.g. (from SF bug # 571634):
# Date: Tue, 18 Jun 0102 05:12:09 +0500
# Obviously clobber such dates.
clobber = True
if clobber:
del msg['date']
del msg['x-original-date']
msg['Date'] = received_time
if original_date:
msg['X-Original-Date'] = original_date
# Always put an indication of when we received the message.
msg['X-List-Received-Date'] = received_time
# While a list archiving lock is acquired, archive the message.
with Lock(os.path.join(mlist.data_path, 'archive.lck')):
for archive_factory in get_plugins('mailman.archiver'):
archive_factory().archive_message(mlist, msg)
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