django-orchestra/orchestra/contrib/lists/backends.py

290 lines
11 KiB
Python

import textwrap
from django.utils.translation import ugettext_lazy as _
from orchestra.contrib.domains.models import Domain, Record
from orchestra.contrib.orchestration import ServiceController, replace
from orchestra.contrib.resources import ServiceMonitor
from . import settings
from .models import List
class MailmanBackend(ServiceController):
"""
Mailman 2 backend based on <tt>newlist</tt>, it handles custom domains.
"""
verbose_name = "Mailman"
model = 'lists.List'
addresses = [
'',
'-admin',
'-bounces',
'-confirm',
'-join',
'-leave',
'-owner',
'-request',
'-subscribe',
'-unsubscribe'
]
doc_settings = (settings, (
'LISTS_VIRTUAL_ALIAS_PATH',
'LISTS_VIRTUAL_ALIAS_DOMAINS_PATH',
'LISTS_DEFAULT_DOMAIN',
'LISTS_MAILMAN_ROOT_DIR'
))
def include_virtual_alias_domain(self, context):
if context['address_domain']:
# Check if the domain is hosted on this mail server
# TODO this is dependent on the domain model
if Domain.objects.filter(records__type=Record.MX, name=context['address_domain']).exists():
self.append(textwrap.dedent("""
[[ $(grep '^\s*%(address_domain)s\s*$' %(virtual_alias_domains)s) ]] || {
echo '%(address_domain)s' >> %(virtual_alias_domains)s
UPDATED_VIRTUAL_ALIAS_DOMAINS=1
}""") % context
)
def exclude_virtual_alias_domain(self, context):
address_domain = context['address_domain']
if not List.objects.filter(address_domain=address_domain).exists():
self.append("sed -i '/^%(address_domain)s\s*$/d' %(virtual_alias_domains)s" % context)
def get_virtual_aliases(self, context):
aliases = ['# %(banner)s' % context]
for address in self.addresses:
context['address'] = address
aliases.append("%(address_name)s%(address)s@%(domain)s\t%(name)s%(address)s" % context)
return '\n'.join(aliases)
def save(self, mail_list):
context = self.get_context(mail_list)
# Create list
self.append(textwrap.dedent("""\
[[ ! -e '%(mailman_root)s/lists/%(name)s' ]] && {
newlist --quiet --emailhost='%(domain)s' '%(name)s' '%(admin)s' '%(password)s'
}""") % context)
# Custom domain
if mail_list.address:
context['aliases'] = self.get_virtual_aliases(context)
# Preserve indentation
self.append(textwrap.dedent("""\
aliases='%(aliases)s'
if [[ ! $(grep '\s\s*%(name)s\s*$' %(virtual_alias)s) ]]; then
echo "${aliases}" >> %(virtual_alias)s
UPDATED_VIRTUAL_ALIAS=1
else
if [[ ! $(grep '^\s*%(address_name)s@%(address_domain)s\s\s*%(name)s\s*$' %(virtual_alias)s) ]]; then
sed -i -e '/^.*\s%(name)s\(%(address_regex)s\)\s*$/d' \\
-e 'N; /^\s*\\n\s*$/d; P; D' %(virtual_alias)s
echo "${aliases}" >> %(virtual_alias)s
UPDATED_VIRTUAL_ALIAS=1
fi
fi""") % context
)
self.append(
'echo "require_explicit_destination = 0" | '
'%(mailman_root)s/bin/config_list -i /dev/stdin %(name)s' % context
)
self.append(textwrap.dedent("""\
echo "host_name = '%(address_domain)s'" | \
%(mailman_root)s/bin/config_list -i /dev/stdin %(name)s""") % context
)
else:
# Cleanup shit
self.append(textwrap.dedent("""\
if [[ ! $(grep '\s\s*%(name)s\s*$' %(virtual_alias)s) ]]; then
sed -i "/^.*\s%(name)s\s*$/d" %(virtual_alias)s
fi""") % context
)
# Update
if context['password'] is not None:
self.append(
'%(mailman_root)s/bin/change_pw --listname="%(name)s" --password="%(password)s"' % context
)
self.include_virtual_alias_domain(context)
if mail_list.active:
self.append('chmod 775 %(mailman_root)s/lists/%(name)s' % context)
else:
self.append('chmod 000 %(mailman_root)s/lists/%(name)s' % context)
def delete(self, mail_list):
context = self.get_context(mail_list)
self.exclude_virtual_alias_domain(context)
self.append(textwrap.dedent("""
sed -i -e '/^.*\s%(name)s\(%(address_regex)s\)\s*$/d' \\
-e 'N; /^\s*\\n\s*$/d; P; D' %(virtual_alias)s""") % context
)
self.append(textwrap.dedent("""
# Non-existent list archives produce exit code 1
exit_code=0
rmlist -a %(name)s || exit_code=$?
if [[ $exit_code != 0 && $exit_code != 1 ]]; then
exit $exit_code
fi""") % context
)
def commit(self):
context = self.get_context_files()
self.append(textwrap.dedent("""
if [[ $UPDATED_VIRTUAL_ALIAS == 1 ]]; then
postmap %(virtual_alias)s
fi
if [[ $UPDATED_VIRTUAL_ALIAS_DOMAINS == 1 ]]; then
service postfix reload
fi""") % context
)
def get_context_files(self):
return {
'virtual_alias': settings.LISTS_VIRTUAL_ALIAS_PATH,
'virtual_alias_domains': settings.LISTS_VIRTUAL_ALIAS_DOMAINS_PATH,
}
def get_banner(self, mail_list):
banner = super(MailmanBackend, self).get_banner()
return '%s %s' % (banner, mail_list.name)
def get_context(self, mail_list):
context = self.get_context_files()
context.update({
'banner': self.get_banner(mail_list),
'name': mail_list.name,
'password': mail_list.password,
'domain': mail_list.address_domain or settings.LISTS_DEFAULT_DOMAIN,
'address_name': mail_list.get_address_name(),
'address_domain': mail_list.address_domain,
'address_regex': '\|'.join(self.addresses),
'admin': mail_list.admin_email,
'mailman_root': settings.LISTS_MAILMAN_ROOT_DIR,
})
return replace(context, "'", '"')
class MailmanTraffic(ServiceMonitor):
"""
Parses mailman log file looking for email size and multiples it by <tt>list_members</tt> count.
"""
model = 'lists.List'
resource = ServiceMonitor.TRAFFIC
verbose_name = _("Mailman traffic")
script_executable = '/usr/bin/python'
doc_settings = (settings,
('LISTS_MAILMAN_POST_LOG_PATH',)
)
def prepare(self):
postlog = settings.LISTS_MAILMAN_POST_LOG_PATH
context = {
'postlogs': str((postlog, postlog+'.1')),
'current_date': self.current_date.strftime("%Y-%m-%d %H:%M:%S %Z"),
}
self.append(textwrap.dedent("""\
import re
import subprocess
import sys
from datetime import datetime
from dateutil import tz
def to_local_timezone(date, tzlocal=tz.tzlocal()):
date = datetime.strptime(date, '%Y-%m-%d %H:%M:%S %Z')
date = date.replace(tzinfo=tz.tzutc())
date = date.astimezone(tzlocal)
return date
postlogs = {postlogs}
# Use local timezone
end_date = to_local_timezone('{current_date}')
end_date = int(end_date.strftime('%Y%m%d%H%M%S'))
lists = {{}}
months = {{
'Jan': '01',
'Feb': '02',
'Mar': '03',
'Apr': '04',
'May': '05',
'Jun': '06',
'Jul': '07',
'Aug': '08',
'Sep': '09',
'Oct': '10',
'Nov': '11',
'Dec': '12',
}}
def prepare(object_id, list_name, ini_date):
global lists
ini_date = to_local_timezone(ini_date)
ini_date = int(ini_date.strftime('%Y%m%d%H%M%S'))
lists[list_name] = [ini_date, object_id, 0]
def monitor(lists, end_date, months, postlogs):
for postlog in postlogs:
try:
with open(postlog, 'r') as postlog:
for line in postlog.readlines():
month, day, time, year, __, __, __, list_name, __, __, size = line.split()[:11]
try:
list = lists[list_name]
except KeyError:
continue
else:
date = year + months[month] + day + time.replace(':', '')
if list[0] < int(date) < end_date:
size = size[5:-1]
try:
list[2] += int(size)
except ValueError:
# anonymized post
pass
except IOError as e:
sys.stderr.write(e)
for list_name, opts in lists.items():
__, object_id, size = opts
if size:
cmd = ' '.join(('list_members', list_name, '| wc -l'))
ps = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
subscribers = ps.communicate()[0].strip()
size *= int(subscribers)
print object_id, size
""").format(**context)
)
def monitor(self, user):
context = self.get_context(user)
self.append("prepare(%(object_id)s, '%(list_name)s', '%(last_date)s')" % context)
def commit(self):
self.append('monitor(lists, end_date, months, postlogs)')
def get_context(self, mail_list):
context = {
'list_name': mail_list.name,
'object_id': mail_list.pk,
'last_date': self.get_last_date(mail_list.pk).strftime("%Y-%m-%d %H:%M:%S %Z"),
}
return replace(context, "'", '"')
class MailmanSubscribers(ServiceMonitor):
"""
Monitors number of list subscribers via <tt>list_members</tt>
"""
model = 'lists.List'
verbose_name = _("Mailman subscribers")
def monitor(self, mail_list):
context = self.get_context(mail_list)
self.append('echo %(object_id)i $(list_members %(list_name)s | wc -l)' % context)
def get_context(self, mail_list):
context = {
'list_name': mail_list.name,
'object_id': mail_list.pk,
}
return replace(context, "'", '"')