[Bug 881312] [NEW] Properly decode payload

Vincent Fretin vincent.fretin at gmail.com
Tue Oct 25 10:55:38 CEST 2011


Public bug reported:

With mailman 3.0.0a8
in src/mailman/runners/command.py, 
there is an issue with
body = part.get_payload(decode=True)
if you send a mail to test-unsubscribe at example.com, with accents in the mail, in the signature for example, you get a body string encoded in iso-8859-1.

When you try to concatenate iso-8859-1 string with unicode, this the
case when the mail body with "Unprocessed:" and "Ignored:" is generated,
you get a UnicodeDecodeError ascii.

The code should be modified to correctly decode the mail body like it is done in src/mailman/pipeline/decorate.py
mcset = msg.get_content_charset() or 'us-ascii'
unicode(msg.get_payload(decode=True), mcset)

There are similar issues in
src/mailman/rules/administrivia.py
with the line: if line == '':
where it give you a warning because it compare an iso to an empty unicode.

and in src/mailman/rules/approved.py where it simply crashes:

Oct 18 17:54:41 2011 (18207) Traceback (most recent call last):
  File "/home/zope/mailman/src/mailman/core/runner.py", line 138, in _one_iteration
    self._process_one_file(msg, msgdata)
  File "/home/zope/mailman/src/mailman/core/runner.py", line 220, in _process_one_file
    keepqueued = self._dispose(mlist, msg, msgdata)
  File "/home/zope/mailman/src/mailman/runners/incoming.py", line 65, in _dispose
    process(mlist, msg, msgdata, mlist.start_chain)
  File "/home/zope/mailman/src/mailman/core/chains.py", line 68, in process
    if link.rule.check(mlist, msg, msgdata):
  File "/home/zope/mailman/src/mailman/rules/approved.py", line 81, in check
    if ':' in line:
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe0 in position 14: invalid continuation byte

Currently, mailman is unusable for another language than English, like
French.

** Affects: mailman
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/881312

Title:
  Properly decode payload

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