Decoding MIME From headers (was Re: Echelon)

[Chris Lawrence <quango@watervalley.net>]

On Jan 05, Jason Gunthorpe wrote:
> It does not decode quoted addresses like:
> 
>  Lista Debian =?iso-8859-1?Q?Espa=F1ol?= <debian-user-spanish@lists.debian.org> 

Here's a somewhat ugly solution to this problem; you'll need GNU
recode installed:

#!/usr/bin/python
import popen2, re, string

commentpart = 'Lista Debian =?iso-8859-1?Q?Espa=F1ol?='

encodings = {'B':'Base64', 'Q':'QP'}
test = re.compile(r'=[?]([^?]+)[?]([BQ])[?]([^?]+)[?]=')
newwords = []
for word in string.split(commentpart):
    mob = test.match(word)
    if mob:
        (charset, encoding, body) = mob.groups()
        (fout, fin) = popen2.popen2('recode %s/%s' % (charset,
                                    encodings[encoding]))
        fin.write(body+'\n')
        fin.close()
        newwords.append(fout.readline()[:-1])
    else:
        newwords.append(word)

name = string.join(newwords, ' ')
print name
## CUT HERE

This should work for anything compliant with RFC 1522.  Don't hold
your breath, though... it is a 20 minute hack.


Chris
-- 
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|        Chris Lawrence         |          It's 2/3 of a beltway...         |
|   <quango@watervalley.net>    |      http://www.lordsutch.com/tn385/      |
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