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