1 files changed, 57 insertions, 0 deletions
diff --git a/Mailman/Handlers/WrapMessage.py b/Mailman/Handlers/WrapMessage.py
new file mode 100644
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--- /dev/null
+++ b/Mailman/Handlers/WrapMessage.py
@@ -0,0 +1,57 @@
+# Copyright (C) 2013 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+"""Wrap the message in an outer message/rfc822 part and transfer/add
+some headers from the original.
+"""
+
+import copy
+
+from Mailman import mm_cfg
+from Mailman.Utils import unique_message_id
+from Mailman.Message import Message
+
+# Headers from the original that we want to keep in the wrapper.
+KEEPERS = ('to',
+           'in-reply-to',
+           'references',
+           'x-mailman-approved-at',
+          )
+
+
+
+def process(mlist, msg, msgdata):
+    if not mm_cfg.ALLOW_FROM_IS_LIST or mlist.from_is_list != 2:
+        return
+
+    # There are various headers in msg that we don't want, so we basically
+    # make a copy of the msg, then delete almost everything and set/copy
+    # what we want.
+    omsg = copy.deepcopy(msg)
+    for key in msg.keys():
+        if key.lower() not in KEEPERS:
+            del msg[key]
+    msg['MIME-Version'] = '1.0'
+    msg['Content-Type'] = 'message/rfc822'
+    msg['Content-Disposition'] = 'inline'
+    msg['Message-ID'] = unique_message_id(mlist)
+    # Add the headers from CookHeaders.
+    for k, v in msgdata['add_header'].items():
+        msg[k] = v
+    # And set the payload.
+    msg.set_payload(omsg.as_string())
+