1 files changed, 54 insertions, 0 deletions
diff --git a/src/mailman/Bouncers/Yahoo.py b/src/mailman/Bouncers/Yahoo.py
new file mode 100644
index 000000000..b0480b818
--- /dev/null
+++ b/src/mailman/Bouncers/Yahoo.py
@@ -0,0 +1,54 @@
+# Copyright (C) 1998-2009 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/>.
+
+"""Yahoo! has its own weird format for bounces."""
+
+import re
+import email
+from email.Utils import parseaddr
+
+tcre = re.compile(r'message\s+from\s+yahoo\.\S+', re.IGNORECASE)
+acre = re.compile(r'<(?P<addr>[^>]*)>:')
+ecre = re.compile(r'--- Original message follows')
+
+
+
+def process(msg):
+    # Yahoo! bounces seem to have a known subject value and something called
+    # an x-uidl: header, the value of which seems unimportant.
+    sender = parseaddr(msg.get('from', '').lower())[1] or ''
+    if not sender.startswith('mailer-daemon@yahoo'):
+        return None
+    addrs = []
+    # simple state machine
+    #     0 == nothing seen
+    #     1 == tag line seen
+    state = 0
+    for line in email.Iterators.body_line_iterator(msg):
+        line = line.strip()
+        if state == 0 and tcre.match(line):
+            state = 1
+        elif state == 1:
+            mo = acre.match(line)
+            if mo:
+                addrs.append(mo.group('addr'))
+                continue
+            mo = ecre.match(line)
+            if mo:
+                # we're at the end of the error response
+                break
+    return addrs