[Baypiggies] urllib2, basic HTTP authentication, and tr.im

[Shannon -jj Behrens]

It may help to look at what is being sent over the wire.

-jj

On Tue, Mar 10, 2009 at 8:26 AM, Daryl Spitzer <daryl.spitzer at gmail.com> wrote:
> I'm playing around, trying to write some code to use the http://tr.im
> APIs (http://tr.im/api/) to shorten a URL.
>
> After reading http://docs.python.org/library/urllib2.html, I tried:
>
>    TRIM_API_URL = 'http://api.tr.im/api'
>    auth_handler = urllib2.HTTPBasicAuthHandler()
>    auth_handler.add_password(realm='tr.im',
>                              uri=TRIM_API_URL,
>                              user=USERNAME,
>                              passwd=PASSWORD)
>    opener = urllib2.build_opener(auth_handler)
>    urllib2.install_opener(opener)
>    response = urllib2.urlopen('%s/trim_simple?url=%s'
>                               % (TRIM_API_URL, url_to_trim))
>    url = response.read().strip()
>
> response.code is 200 (I think it should be 202).  url is valid, but
> the basic HTTP authentication doesn't seem to have worked, because the
> shortened URL isn't in my list of URLs (at http://tr.im/?page=1).
>
> After reading http://www.voidspace.org.uk/python/articles/authentication.shtml#doing-it-properly
> I also tried:
>
>    TRIM_API_URL = 'api.tr.im/api'
>    password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
>    password_mgr.add_password(None, TRIM_API_URL, USERNAME, PASSWORD)
>    auth_handler = urllib2.HTTPBasicAuthHandler(password_mgr)
>    opener = urllib2.build_opener(auth_handler)
>    urllib2.install_opener(opener)
>    response = urllib2.urlopen('http://%s/trim_simple?url=%s'
>                               % (TRIM_API_URL, url_to_trim))
>    url = response.read().strip()
>
> But I get the same results.  (response.code is 200 and url is valid,
> but not recorded in my account at http://tr.im/.)
>
> If I use query string parameters instead of basic HTTP authentication,
> like this:
>
>    TRIM_API_URL = 'http://api.tr.im/api'
>    response = urllib2.urlopen('%s/trim_simple?url=%s&username=%s&password=%s'
>                               % (TRIM_API_URL,
>                                  url_to_trim,
>                                  USERNAME,
>                                  PASSWORD))
>    url = response.read().strip()
>
> ...then not only is url valid but it's recorded in my tr.im account.
> (Though response.code is still 200.)
>
> Either there must be something wrong in my authentication code, or in
> tr.im's.  (I've written api at tr.im to see if it's a known problem and
> haven't received a response.)
>
> Can anyone spot any problems?
>
> --
> Daryl
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