[cups.development] IPP-Create/Print-Job unauthorized when auth-info-required

[Michael Sweet]

On Mar 4, 2009, at 7:33 AM, Tim Waugh wrote:
> ...
> What is the reason for this behaviour?  From my point of view it  
> would be nicer if the job could be created as normal in this case.


The print-then-hold behavior is provided only to address error  
scenarios - you setup a queue but didn't know it required  
authentication for some reason, or you provided the wrong credentials.

Challenging at print time is the "user experience" we want - the queue  
is authenticated, so you must supply credentials. Better to  
authenticate first (potentially using cached credentials - on the Mac  
they can be stored in your keychain, on Linux there are existing GNOME  
and KDE "wallet" interfaces...) than to attempt printing and have to  
ask the user after the fact.

________________________________________
Michael R Sweet, Senior Printing System Engineer

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