sandeep pujar wrote:
> Greetings,
>
> Wanted to know if anybody had worked on form based
> authentication for the nutch crawler. 
>
> any pointers, suggestions would help.
>   

I have, without much success. Form-based authentication is different 
from site to site - most sites don't use just a plain form with 
username/password, but they use a wide variety of methods to check / 
protect the data being sent. In extreme cases forms will use an embedded 
challenge string, run a javascript-based md5 hash, and send only that 
... in other cases some other tricks are played, with setting cookies, 
redirecting, running javascripts, etc. In the end only perhaps 1 out of 
50 sites was using a plain form authentication, and even that with 
different field names on the form ... so I gave up.

-- 
Best regards,
Andrzej Bialecki     <><
 ___. ___ ___ ___ _ _   __________________________________
[__ || __|__/|__||\/|  Information Retrieval, Semantic Web
___|||__||  \|  ||  |  Embedded Unix, System Integration
http://www.sigram.com  Contact: info at sigram dot com



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