AbstractBasicAuthHandler class parses headers to search
for a scheme and its realm.
"rx" is the compiled regular expression that is used to
match these items. But it doesn't work on multiple
auth-schemes (as stated in urllib2.py source code).
Since I HAD to work around this issue (we have NTLM
authentication first in our proxy) I managed a bit the
regular expression (rx) and its groups.
The auth-request I had to face is:
< NTLM, Basic realm="something" >, so I created a RE
with named groups to find exactly the type of request
that has a "realm" after the scheme, and that can
contain commas, in this way:
< ([ \t]+|(.*,)+)*(?P<scheme>[^ \t]+)[
\t]+realm="(?P<realm>[^"]*)"' >
Matching groups "scheme" and "realm" will contain right
values as parsed.
This will NOT fix issue with multiple realm-based
requests (it will return only last one), but seems to
handle well requests like the one specified.
Diff attached for Python 2.3
Hope this helps,
Federico Di Carlo
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