base64 transfer-encoded payload *after* decoding it; it no longer does.
email had a special method in utils, _bdecode, specifically to do this,
so it must have served a purpose at some point, yet it is clearly wrong
per RFC. Fixed with Barry's approval, but no backport. Email package
minor version number is bumped, now version 4.0.1.
Patch by Joaquin Cuenca Abela.
points out there are really two types of continued headers defined in this
RFC (i.e. "encoded" parameters with the form "name*0*=" and unencoded
parameters with the form "name*0="), but we were were handling them both the
same way and that isn't correct.
This patch should be much more RFC compliant in that only encoded params are
%-decoded and the charset/language information is only extract if there are
any encoded params in the segments. If there are no encoded params then the
RFC says that there will be no charset/language parts.
Note however that this will change the return value for Message.get_param() in
some cases. For example, whereas before if you had all unencoded param
continuations you would have still gotten a 3-tuple back from this method
(with charset and language == None), you will now get just a string. I don't
believe this is a backward incompatible change though because the
documentation for this method already indicates that either return value is
possible and that you must do an isinstance(val, tuple) check to discriminate
between the two. (Yeah that API kind of sucks but we can't change /that/
without breaking code.)
Test cases, some documentation updates, and a NEWS item accompany this patch.
Specifically, instead of raising a ValueError when there is a single tick in
the parameter, simply return that the entire string unquoted, with None for
both the charset and the language. Also, if there are more than 2 ticks in
the parameter, interpret the first three parts as the standard RFC 2231 parts,
then the rest of the parts as the encoded string.
Test cases added.
Original fewer-than-3-parts fix by Tokio Kikuchi.
Resolves SF bug # 1218081. I will back port the fix and tests to Python 2.4
(email 3.0) and Python 2.3 (email 2.5).
Also, bump the version number to email 4.0.1, removing the 'alpha' moniker.
R. David Murray
Georg Brandl
Barry Warsaw
Christian Heimes