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# Copyright (C) 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
"""Mixin class for MailList which handles administrative requests.
Two types of admin requests are currently supported: adding members to a
closed or semi-closed list, and moderated posts.
Pending subscriptions which are requiring a user's confirmation are handled
elsewhere (currently).
"""
import os
import string
import time
import anydbm
import marshal
from Mailman.pythonlib.StringIO import StringIO
from Mailman import Message
from Mailman import mm_cfg
from Mailman import Utils
from Mailman import Errors
class ListAdmin:
def InitVars(self):
# non-configurable data
self.requests = {}
self.next_request_id = 1
def InitTempVars(self):
self.__db = None
self.__dbflags = None
def __opendb(self, flags='r'):
if self.__db is not None:
# if we want the database writeable, but it currently is not, then
# close it and re-open it with the given flags. we don't need to
# re-open it if it's already open writeable and we just want to
# read it.
if 'w' in self.__dbflags or 'w' not in flags:
return
self.__closedb()
dbfilename = os.path.join(self.fullpath(), 'request.db')
# For all writes we need to make sure the database is locked. We
# assert this by using the list's lock as the database lock.
if 'w' in flags:
assert self.Locked()
try:
omask = os.umask(002)
try:
self.__db = anydbm.open(dbfilename, flags)
finally:
os.umask(omask)
except anydbm.error:
# perhaps the db file exists but is zero sized?
from stat import ST_SIZE
if os.stat(dbfilename)[ST_SIZE] == 0:
os.unlink(dbfilename)
omask = os.umask(002)
try:
self.__db = anydbm.open(dbfilename, flags)
finally:
os.umask(omask)
else:
raise
self.__dbflags = flags
def __closedb(self):
if self.__db is not None:
self.__db.close()
self.__db = None
def __request_id(self):
id = self.next_request_id
self.next_request_id = self.next_request_id + 1
return id
def SaveRequestsDb(self):
if self.__db and 'w' in self.__dbflags:
self.__closedb()
def NumRequestsPending(self):
return len(self.requests)
def __getmsgids(self, rtype):
ids = []
for k, v in self.requests.items():
if v == rtype:
ids.append(k)
return ids
def GetHeldMessageIds(self):
return self.__getmsgids(mm_cfg.HELDMSG)
def GetSubscriptionIds(self):
return self.__getmsgids(mm_cfg.SUBSCRIPTION)
def GetRecord(self, id):
self.__opendb()
data = self.__db[`id`]
return marshal.loads(data)
def GetRecordType(self, id):
return self.requests[id]
def HandleRequest(self, id, value, comment):
self.__opendb('w')
record = self.GetRecord(id)
rtype = self.GetRecordType(id)
del self.__db[`id`]
del self.requests[id]
if rtype == mm_cfg.HELDMSG:
self.__handlepost(record, value, comment)
else:
assert rtype == mm_cfg.SUBSCRIPTION
self.__handlesubscription(record, value, comment)
def HoldMessage(self, msg, reason):
# assure that the database is open for writing
self.__opendb('cw')
# get the next unique id
id = self.__request_id()
dbid = `id`
assert not self.__db.has_key(dbid)
# flatten the message and suck out the sender address
sender, text = Utils.SnarfMessage(msg)
# save the information to the request database. for held message
# entries, each record in the database will be of the following
# format:
#
# the time the message was received
# the sender of the message
# the message's subject
# a string description of the problem
# the full text of the message
#
msgsubject = msg.get('subject', '(no subject)')
data = marshal.dumps((time.time(), sender, msgsubject, reason, text))
self.__db[dbid] = data
#
# remember the request type for later
self.requests[id] = mm_cfg.HELDMSG
def __handlepost(self, record, value, comment):
ptime, sender, subject, reason, text = record
rejection = None
if value == 0:
# Approved
msg = Message.Message(StringIO(text))
msg.approved = 1
self.Post(msg)
elif value == 1:
# Rejected
rejection = 'Refused'
if not self.dont_respond_to_post_requests:
self.__refuse('Posting of your message titled "%s"' % subject,
sender, comment or '[No reason given]')
else:
assert value == 2
# Discarded
rejection = 'Discarded'
# Log the rejection
def strquote(s):
return string.replace(s, '%', '%%')
if rejection:
note = '''%(listname)s: %(rejection)s posting:
\tFrom: %(sender)s
\tSubject: %(subject)s''' % {
'listname' : self.internal_name(),
'rejection': rejection,
'sender' : sender,
'subject' : strquote(subject),
}
if comment:
note = note + '\n\tReason: ' + strquote(comment)
self.LogMsg('vette', note)
def HoldSubscription(self, addr, password, digest):
# assure that the database is open for writing
self.__opendb('cw')
# get the next unique id
id = self.__request_id()
dbid = `id`
assert not self.__db.has_key(dbid)
#
# save the information to the request database. for held subscription
# entries, each record in the database will be one of the following
# format:
#
# the time the subscription request was received
# the subscriber's address
# the subscriber's selected password (TBD: is this safe???)
# the digest flag
#
data = marshal.dumps((time.time(), addr, password, digest))
self.__db[dbid] = data
#
# remember the request type for later
self.requests[id] = mm_cfg.SUBSCRIPTION
#
# TBD: this really shouldn't go here but I'm not sure where else is
# appropriate.
self.LogMsg('vette', '%s: held subscription request from %s' %
(self.real_name, addr))
# possibly notify the administrator
if self.admin_immed_notify:
subject = 'New subscription request to list %s from %s' % (
self.real_name, addr)
text = Utils.maketext(
'subauth.txt',
{'username' : addr,
'listname' : self.real_name,
'hostname' : self.host_name,
'admindb_url': self.GetAbsoluteScriptURL('admindb'),
})
self.SendTextToUser(subject=subject,
recipient=self.GetAdminEmail(),
text=text)
def __handlesubscription(self, record, value, comment):
stime, addr, password, digest = record
if value == 0:
# refused
self.__refuse('Subscription request', addr, comment)
else:
# subscribe
assert value == 1
self.ApprovedAddMember(addr, password, digest)
def __refuse(self, request, recip, comment, msg=None):
text = Utils.maketext(
'refuse.txt',
{'listname' : self.real_name,
'request' : request,
'reason' : comment,
'adminaddr': self.GetAdminEmail(),
})
# add in original message, but not wrap/filled
if msg:
text = text + \
'\n---------- Original Message ----------\n' + \
Utils.SnarfMessage(msg)[1]
subject = 'Request to mailing list %s rejected' % self.real_name
self.SendTextToUser(subject=subject,
recipient=recip,
text=text)
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