On Thu, May 29, 2008 at 3:54 AM, John M <[EMAIL PROTECTED]> wrote:
>
> I've run into some more trouble with what I think is an encoding
> issue?
>
> I am writting a bittorrent tracker, and one of the GET parameters that
> is passed is called info_hash, which is a lengthy / escaped hex
> string, for example:
>
> GET /announce?info_hash=%EByXm%C5%7EmfD%D8%9A%91%D4%F7%C7%86%C7%D18%A7
>
> the django / python code I am using to decode this is:
>
> request.encoding = "iso-8859-1"
> hash = request.GET['info_hash'].encode('iso-8859-1').encode("hex")
>
> But when I print the hash field, i get this:
>
> efbfbd6defbfbd6d6644d89aefbfbdefbfbdc786efbfbd38efbfbd
>
> where it should be
>
> eb79586dc57e6d6644d89a91d4f7c786c7d138a7
>
> I had it working for a while, but I'm not sure what changed to 'break'
> this.
>
> Any help would be greatly appreciated
>
First, the code you've included doesn't produce the answer you show, so I'm
a little confused about what your code is really doing. In a python shell:
>>> s = '%EByXm%C5%7EmfD%D8%9A%91%D4%F7%C7%86%C7%D18%A7'
>>> s.encode('iso8859-1').encode('hex')
'25454279586d2543352537456d664425443825394125393125443425463725433725383625433725443138254137'
Where the 'efbbd...' is coming from I don't understand. But doing anything
with an encoding like iso8859-1 isn't what you want to do anyway. You just
want to un-do the percent-encoding and convert (encode) into the hex
representation, using just the plain ASCII values for anything that wasn't
percent-encoded:
>>> urllib.unquote(s).encode('hex')
'eb79586dc57e6d6644d89a91d4f7c786c7d138a7'
so try:
import urllib
hash = urllib.unquote(request.GET['info_hash']).encode('hex')
Karen
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