urllib2 Basic authentication, what am I doing wrong?

Michel Bouwmans mfb.chikazuku at gmail.com
Sun Apr 13 20:11:34 CEST 2008


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Hey everybody,

I'm having a little problem with urllib2 and Basic HTTP authentication.

I have the following code:

auth = urllib2.HTTPPasswordMgrWithDefaultRealm()
auth.add_password(None, 'https://webmail.osg-erasmus.nl/oneNet/NetStorage/',
user, password)
authhandler = urllib2.HTTPBasicAuthHandler(auth)

opener = urllib2.build_opener(auth)
opener.addheaders = [('User-agent', 'Mozilla/5.0 Something/1.0')]

try:
        return
self.opener.open('https://webmail.osg-erasmus.nl/oneNet/NetStorage/')
except urllib2.HTTPError, e:
        print e.code
        print e.headers

This however does not allow me to authenticate. I keep getting back a 401:

401
Date: Sun, 13 Apr 2008 18:11:32 GMT
Server: Apache/2.0.54 (NETWARE) mod_perl/1.99_12 Perl/v5.8.4 PHP/5.0.5
mod_nsn/1.0_0 mod_jk/1.2.14
Set-Cookie: novellsession1=8KuAO0iLyAEAAAAAAAAAAA==; path=/
WWW-Authenticate: Basic realm="ERASMUS-TREE"
Vary: accept-language,accept-charset
Accept-Ranges: bytes
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1
Content-Language: en

Using this nice class (adapted to urllib2) as a basehandler I see that no
Authentication-header is being send out:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440574

What am I doing wrong here? I spend almost my entire free time today on this
and couldn't find any problem with my code, anyone else has a thought?
Thanks in advance.

MFB
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