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# Copyright (C) 2008-2017 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/>.
"""MHonArc archiver."""
import logging
from mailman.config import config
from mailman.config.config import external_configuration
from mailman.interfaces.archiver import IArchiver
from mailman.utilities.string import expand
from public import public
from subprocess import PIPE, Popen
from urllib.parse import urljoin
from zope.interface import implementer
log = logging.getLogger('mailman.archiver')
@public
@implementer(IArchiver)
class MHonArc:
"""Local MHonArc archiver."""
name = 'mhonarc'
is_enabled = False
def __init__(self):
# Read our specific configuration file
archiver_config = external_configuration(
config.archiver.mhonarc.configuration)
self.base_url = archiver_config.get('general', 'base_url')
self.command = archiver_config.get('general', 'command')
def list_url(self, mlist):
"""See `IArchiver`."""
# XXX What about private MHonArc archives?
return expand(self.base_url, mlist, dict(
# For backward compatibility.
hostname=mlist.domain.mail_host,
fqdn_listname=mlist.fqdn_listname,
))
def permalink(self, mlist, msg):
"""See `IArchiver`."""
# XXX What about private MHonArc archives?
#
# It is the LMTP server's responsibility to ensure that the message has
# a Message-ID-Hash header. For backward compatibility, fall back to
# X-Message-ID-Hash. If the message has neither, then there's no
# permalink.
message_id_hash = msg.get('message-id-hash')
if message_id_hash is None:
message_id_hash = msg.get('x-message-id-hash')
if message_id_hash is None:
return None
if isinstance(message_id_hash, bytes):
message_id_hash = message_id_hash.decode('ascii')
return urljoin(self.list_url(mlist), message_id_hash)
def archive_message(self, mlist, msg):
"""See `IArchiver`."""
substitutions = config.__dict__.copy()
substitutions['listname'] = mlist.fqdn_listname
command = expand(self.command, mlist, substitutions)
proc = Popen(
command,
stdin=PIPE, stdout=PIPE, stderr=PIPE,
universal_newlines=True, shell=True)
stdout, stderr = proc.communicate(msg.as_string())
if proc.returncode != 0:
log.error('%s: mhonarc subprocess had non-zero exit code: %s' %
(msg['message-id'], proc.returncode))
log.info(stdout)
log.error(stderr)
# Can we get more information, such as the url to the message just
# archived, out of MHonArc?
return None
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