From: Brian Candler <b.candler@...>
Date: 2012-03-21T06:57:38+09:00
Subject: Re: network user with sinatra

Mario Ruiz wrote in post #1052356:
> Robert Klemme wrote in post #1052335:
>> Are you talking about a Windows domain login?  I do not have too much
>> insight into Windows authentication mechanisms but I doubt you can
>> access user name from an ordinary HTTP request - at least not with
>> additional efforts.
>>
>
> it is like in Ruby using ENV['user'] or ENV['username'], work for linux
> or windows

Not from a web request it doesn't.

If the user has to authenticate to your site (e.g. with HTTP Basic 
Auth), then you can get the username they authenticated with. This may 
or may not be related to their domain login.

But if they just went to http://your.site/ and your site doesn't require 
authentication, then your site will just serve them the page and you 
won't know what Windows username they had.

If they have a domain login, then it *might* be possible to set up your 
webserver to require Kerberos authentication and for the Windows client 
to present its domain Kerberos ticket as credentials. I don't know how 
feasible this is. I've done it with Unix krb5 clients but not with 
Windows clients.

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