1 files changed, 88 insertions, 0 deletions
diff --git a/Mailman/Bouncers/Netscape.py b/Mailman/Bouncers/Netscape.py
new file mode 100644
index 00000000..21aea7c5
--- /dev/null
+++ b/Mailman/Bouncers/Netscape.py
@@ -0,0 +1,88 @@
+# 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.
+
+"""Netscape Messaging Server bounce formats.
+
+I've seen at least one NMS server version 3.6 (envy.gmp.usyd.edu.au) bounce
+messages of this format.  Bounces come in DSN MIME format, but don't include
+any -Recipient: headers.  Gotta just parse the text :(
+
+NMS 4.1 (dfw-smtpin1.email.verio.net) seems even worse, but we'll try to
+decipher the format here too.
+
+"""
+
+import re
+from cStringIO import StringIO
+
+pcre = re.compile(
+    r'This Message was undeliverable due to the following reason:',
+    re.IGNORECASE)
+
+acre = re.compile(
+    r'(?P<reply>please reply to)?.*<(?P<addr>[^>]*)>',
+    re.IGNORECASE)
+
+
+
+def flatten(msg, leaves):
+    # give us all the leaf (non-multipart) subparts
+    if msg.is_multipart():
+        for part in msg.get_payload():
+            flatten(part, leaves)
+    else:
+        leaves.append(msg)
+
+
+
+def process(msg):
+    # Sigh.  Some show NMS 3.6's show
+    #     multipart/report; report-type=delivery-status
+    # and some show
+    #     multipart/mixed;
+    if not msg.is_multipart():
+        return None
+    # We're looking for a text/plain subpart occuring before a
+    # message/delivery-status subpart.
+    plainmsg = None
+    leaves = []
+    flatten(msg, leaves)
+    for i, subpart in zip(range(len(leaves)-1), leaves):
+        if subpart.get_type() == 'text/plain':
+            plainmsg = subpart
+            break
+    if not plainmsg:
+        return None
+    # Total guesswork, based on captured examples...
+    body = StringIO(plainmsg.get_payload())
+    addrs = []
+    while 1:
+        line = body.readline()
+        if not line:
+            break
+        mo = pcre.search(line)
+        if mo:
+            # We found a bounce section, but I have no idea what the official
+            # format inside here is.  :(  We'll just search for <addr>
+            # strings.
+            while 1:
+                line = body.readline()
+                if not line:
+                    break
+                mo = acre.search(line)
+                if mo and not mo.group('reply'):
+                    addrs.append(mo.group('addr'))
+    return addrs