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# Copyright (C) 2006 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.
"""Configuration file loading and management."""
import os
import errno
from Mailman import Defaults
from Mailman import Errors
_missing = object()
class Configuration(object):
def __init__(self):
self.domains = {} # email host -> web host
self._reverse = None
def load(self, filename=None):
# Load the configuration from the named file, or if not given, search
# in VAR_PREFIX for an etc/mailman.cfg file. If that file is missing,
# use Mailman/mm_cfg.py for backward compatibility.
#
# Whatever you find, create a namespace and execfile that file in it.
# The values in that namespace are exposed as attributes on this
# Configuration instance.
if filename is None:
filename = os.path.join(Defaults.VAR_PREFIX, 'etc', 'mailman.cfg')
# Set up the execfile namespace
ns = Defaults.__dict__.copy()
# Prune a few things, add a few things
del ns['__file__']
del ns['__name__']
del ns['__doc__']
ns['add_domain'] = self.add_domain
# Attempt our first choice
path = os.path.abspath(os.path.expanduser(filename))
try:
execfile(path, ns, ns)
except EnvironmentError, e:
if e.errno <> errno.ENOENT:
raise
# The file didn't exist, so try mm_cfg.py
from Mailman import mm_cfg
ns.update(mm_cfg.__dict__)
# Pull out the defaults
PREFIX = ns['PREFIX']
VAR_PREFIX = ns['VAR_PREFIX']
EXEC_PREFIX = ns['EXEC_PREFIX']
# Now that we've loaded all the configuration files we're going to
# load, set up some useful directories.
self.LIST_DATA_DIR = os.path.join(VAR_PREFIX, 'lists')
self.LOG_DIR = os.path.join(VAR_PREFIX, 'logs')
self.LOCK_DIR = lockdir = os.path.join(VAR_PREFIX, 'locks')
self.DATA_DIR = datadir = os.path.join(VAR_PREFIX, 'data')
self.ETC_DIR = etcdir = os.path.join(VAR_PREFIX, 'etc')
self.SPAM_DIR = os.path.join(VAR_PREFIX, 'spam')
self.WRAPPER_DIR = os.path.join(EXEC_PREFIX, 'mail')
self.BIN_DIR = os.path.join(PREFIX, 'bin')
self.SCRIPTS_DIR = os.path.join(PREFIX, 'scripts')
self.TEMPLATE_DIR = os.path.join(PREFIX, 'templates')
self.MESSAGES_DIR = os.path.join(PREFIX, 'messages')
self.PUBLIC_ARCHIVE_FILE_DIR = os.path.join(VAR_PREFIX,
'archives', 'public')
self.PRIVATE_ARCHIVE_FILE_DIR = os.path.join(VAR_PREFIX,
'archives', 'private')
# Directories used by the qrunner subsystem
self.QUEUE_DIR = qdir = os.path.join(VAR_PREFIX, 'qfiles')
self.INQUEUE_DIR = os.path.join(qdir, 'in')
self.OUTQUEUE_DIR = os.path.join(qdir, 'out')
self.CMDQUEUE_DIR = os.path.join(qdir, 'commands')
self.BOUNCEQUEUE_DIR = os.path.join(qdir, 'bounces')
self.NEWSQUEUE_DIR = os.path.join(qdir, 'news')
self.ARCHQUEUE_DIR = os.path.join(qdir, 'archive')
self.SHUNTQUEUE_DIR = os.path.join(qdir, 'shunt')
self.VIRGINQUEUE_DIR = os.path.join(qdir, 'virgin')
self.BADQUEUE_DIR = os.path.join(qdir, 'bad')
self.RETRYQUEUE_DIR = os.path.join(qdir, 'retry')
self.MAILDIR_DIR = os.path.join(qdir, 'maildir')
# Other useful files
self.PIDFILE = os.path.join(datadir,
'master-qrunner.pid')
self.SITE_PW_FILE = os.path.join(datadir, 'adm.pw')
self.LISTCREATOR_PW_FILE = os.path.join(datadir, 'creator.pw')
self.CONFIG_FILE = os.path.join(etcdir, 'mailman.cfg')
self.LOCK_FILE = os.path.join(lockdir, 'master-qrunner')
# Now update our dict so attribute syntax just works
if 'add_domain' in ns:
del ns['add_domain']
self.__dict__.update(ns)
# Add the default domain if there are no virtual domains currently
# defined.
if not self.domains:
self.add_domain(self.DEFAULT_EMAIL_HOST, self.DEFAULT_URL_HOST)
def add_domain(self, email_host, url_host):
"""Add the definition of a virtual domain.
email_host is the right-hand side of the posting email address,
e.g. 'example.com' in 'mylist@example.com'. url_host is the host name
part of the exposed web pages, e.g. 'www.example.com'."""
if email_host in self.domains:
raise Errors.BadDomainSpecificationError(
'Duplicate email host: %s' % email_host)
# Make sure there's only one mapping for the url_host
if url_host in self.domains.values():
raise Errors.BadDomainSpecificationError(
'Duplicate url host: %s' % url_host)
# We'll do the reverse mappings on-demand. There shouldn't be too
# many virtual hosts that it will really matter that much.
self.domains[email_host] = url_host
# Invalidate the reverse mapping cache
self._reverse = None
# Given an email host name, the url host name can be looked up directly.
# This does the reverse mapping.
def get_email_host(self, url_host, default=None):
if self._reverse is None:
# XXX Can't use a generator comprehension until Python 2.4 is
# minimum requirement.
self._reverse = dict([(v, k) for k, v in self.domains.items()])
return self._reverse.get(url_host, default)
config = Configuration()
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