1 files changed, 80 insertions, 0 deletions

diff --git a/Mailman/Bouncers/Postfix.py b/Mailman/Bouncers/Postfix.py
new file mode 100644
index 000000000..68f68e6c1
--- /dev/null
+++ b/Mailman/Bouncers/Postfix.py
@@ -0,0 +1,80 @@
+# 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.
+
+"""Parse bounce messages generated by Postfix."""
+
+
+import string
+import re
+import multifile
+import mimetools
+
+from Mailman.pythonlib.StringIO import StringIO
+
+
+
+def process(mlist, msg):
+    if msg.gettype() <> 'multipart/mixed':
+        return None
+    boundary = msg.getparam('boundary')
+    msg.fp.seek(0)
+    mfile = multifile.MultiFile(msg.fp)
+    mfile.push(boundary)
+    # find the subpart with message/delivery-status information
+    while 1:
+        try:
+            more = mfile.next()
+        except multifile.Error:
+            # looked like a multipart, but really wasn't
+            return None
+        if not more:
+            # we didn't find it
+            return None
+        s = StringIO(mfile.read())
+        msg2 = mimetools.Message(s)
+        if msg2.gettype() == 'text/plain':
+            desc = msg2.get('content-description')
+            if string.lower(desc) == 'notification':
+                return findaddr(msg2.fp)
+            # probably not a Postfix bounce
+            return None
+
+
+
+# are these heuristics correct or guaranteed?
+pcre = re.compile(r'\t\t\tthe postfix program$', re.IGNORECASE)
+acre = re.compile(r'<(?P<addr>[^>]*)>:')
+
+def findaddr(fp):
+    # simple state machine
+    #     0 == nothing found
+    #     1 == salutation found
+    state = 0
+    while 1:
+        line = fp.readline()
+        if not line:
+            return None
+        # preserve leading whitespace
+        line = string.rstrip(line)
+        # yes use match to match at beginning of string
+        if state == 0 and pcre.match(line):
+            state = 1
+        elif state == 1 and line:
+            mo = acre.search(line)
+            if mo:
+                return [mo.group('addr')]
+            # hmm, probably not a postfix bounce
+            return None