1 files changed, 0 insertions, 116 deletions

diff --git a/src/mailman/pipeline/avoid_duplicates.py b/src/mailman/pipeline/avoid_duplicates.py
deleted file mode 100644
index ffbc80c85..000000000
--- a/src/mailman/pipeline/avoid_duplicates.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# Copyright (C) 2002-2012 by the Free Software Foundation, Inc.
-#
-# This file is part of GNU Mailman.
-#
-# GNU Mailman 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 3 of the License, or (at your option)
-# any later version.
-#
-# GNU Mailman 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
-# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
-
-"""If the user wishes it, do not send duplicates of the same message.
-
-This module keeps an in-memory dictionary of Message-ID: and recipient pairs.
-If a message with an identical Message-ID: is about to be sent to someone who
-has already received a copy, we either drop the message, add a duplicate
-warning header, or pass it through, depending on the user's preferences.
-"""
-
-from __future__ import absolute_import, unicode_literals
-
-__metaclass__ = type
-__all__ = [
-    'AvoidDuplicates',
-    ]
-
-
-from email.utils import getaddresses, formataddr
-from zope.interface import implements
-
-from mailman.core.i18n import _
-from mailman.interfaces.handler import IHandler
-
-
-COMMASPACE = ', '
-
-
-
-class AvoidDuplicates:
-    """If the user wishes it, do not send duplicates of the same message."""
-
-    implements(IHandler)
-
-    name = 'avoid-duplicates'
-    description = _('Suppress some duplicates of the same message.')
-
-    def process(self, mlist, msg, msgdata):
-        """See `IHandler`."""
-        recips = msgdata.get('recipients')
-        # Short circuit
-        if not recips:
-            return
-        # Seed this set with addresses we don't care about dup avoiding.
-        listaddrs = set((mlist.posting_address,
-                         mlist.bounces_address,
-                         mlist.owner_address,
-                         mlist.request_address))
-        explicit_recips = listaddrs.copy()
-        # Figure out the set of explicit recipients.
-        cc_addresses = {}
-        for header in ('to', 'cc', 'resent-to', 'resent-cc'):
-            addrs = getaddresses(msg.get_all(header, []))
-            header_addresses = dict((addr, formataddr((name, addr)))
-                                    for name, addr in addrs
-                                    if addr)
-            if header == 'cc':
-                # Yes, it's possible that an address is mentioned in multiple
-                # CC headers using different names.  In that case, the last
-                # real name will win, but that doesn't seem like such a big
-                # deal.  Besides, how else would you chose?
-                cc_addresses.update(header_addresses)
-            # Ignore the list addresses for purposes of dup avoidance.
-            explicit_recips |= set(header_addresses)
-        # Now strip out the list addresses.
-        explicit_recips -= listaddrs
-        if not explicit_recips:
-            # No one was explicitly addressed, so we can't do any dup
-            # collapsing
-            return
-        newrecips = set()
-        for r in recips:
-            # If this recipient is explicitly addressed...
-            if r in explicit_recips:
-                send_duplicate = True
-                # If the member wants to receive duplicates, or if the
-                # recipient is not a member at all, they will get a copy.
-                # header.
-                member = mlist.members.get_member(r)
-                if member and not member.receive_list_copy:
-                    send_duplicate = False
-                # We'll send a duplicate unless the user doesn't wish it.  If
-                # personalization is enabled, the add-dupe-header flag will
-                # add a X-Mailman-Duplicate: yes header for this user's
-                # message.
-                if send_duplicate:
-                    msgdata.setdefault('add-dup-header', set()).add(r)
-                    newrecips.add(r)
-                elif r in cc_addresses:
-                    del cc_addresses[r]
-            else:
-                # Otherwise, this is the first time they've been in the recips
-                # list.  Add them to the newrecips list and flag them as
-                # having received this message.
-                newrecips.add(r)
-        # Set the new list of recipients.  XXX recips should always be a set.
-        msgdata['recipients'] = list(newrecips)
-        # RFC 2822 specifies zero or one CC header
-        if cc_addresses:
-            del msg['cc']
-            msg['CC'] = COMMASPACE.join(cc_addresses.values())