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author <>2003-01-02 05:25:50 +0000
committer <>2003-01-02 05:25:50 +0000
commitb132a73f15e432eaf43310fce9196ca0c0651465 (patch)
treec15f816ba7c4de99fef510e3bd75af0890d47441 /Mailman/Handlers/Approve.py
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+# Copyright (C) 1998,1999,2000,2001,2002 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.
+
+"""Determine whether the message is approved for delivery.
+
+This module only tests for definitive approvals. IOW, this module only
+determines whether the message is definitively approved or definitively
+denied. Situations that could hold a message for approval or confirmation are
+not tested by this module.
+
+"""
+
+from email.Iterators import typed_subpart_iterator
+
+from Mailman import mm_cfg
+from Mailman import Errors
+
+NL = '\n'
+
+
+
+def process(mlist, msg, msgdata):
+ # Short circuits
+ if msgdata.get('approved'):
+ # Digests, Usenet postings, and some other messages come pre-approved.
+ # TBD: we may want to further filter Usenet messages, so the test
+ # above may not be entirely correct.
+ return
+ # See if the message has an Approved or Approve header with a valid
+ # list-moderator, list-admin. Also look at the first non-whitespace line
+ # in the file to see if it looks like an Approved header. We are
+ # specifically /not/ allowing the site admins password to work here
+ # because we want to discourage the practice of sending the site admin
+ # password through email in the clear.
+ missing = []
+ passwd = msg.get('approved', msg.get('approve', missing))
+ if passwd is missing:
+ # Find the first text/plain part in the message
+ part = None
+ for part in typed_subpart_iterator(msg, 'text', 'plain'):
+ break
+ if part is not None:
+ lines = part.get_payload().splitlines()
+ line = ''
+ for lineno, line in zip(range(len(lines)), lines):
+ if line.strip():
+ break
+ i = line.find(':')
+ if i >= 0:
+ name = line[:i]
+ value = line[i+1:]
+ if name.lower() in ('approve', 'approved'):
+ passwd = value.lstrip()
+ # Now strip the first line from the payload so the
+ # password doesn't leak.
+ del lines[lineno]
+ part.set_payload(NL.join(lines[1:]))
+ if passwd is not missing and mlist.Authenticate((mm_cfg.AuthListModerator,
+ mm_cfg.AuthListAdmin),
+ passwd):
+ # BAW: should we definitely deny if the password exists but does not
+ # match? For now we'll let it percolate up for further determination.
+ msgdata['approved'] = 1
+ # Used by the Emergency module
+ msgdata['adminapproved'] = 1
+ # has this message already been posted to this list?
+ beentheres = [s.strip().lower() for s in msg.get_all('x-beenthere', [])]
+ if mlist.GetListEmail().lower() in beentheres:
+ raise Errors.LoopError