I think this is a design decision based use case - that the cloud service
would attempt to retrieve the files by a specific method. The use case of
the user wanting to print a file from a service or location could also be
met by requiring the user to upload the file, or click print on the file in
Flickr (or other application) and select the cloud provider from the list of
printers, or add the cloud print provider as a "trusted friend" in Flickr,
or .....
Larry
-----Original Message-----
From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf Of
William A Wagner
Sent: Thursday, August 16, 2012 1:55 PM
To: 'Randy Turner'; cloud at pwg.org
Subject: RE: [Cloud] new use case for cloud printing
The scenario is interesting, but I think the conditions you suggest (Cloud
or printer needs to authenticate on behalf of Alice to get access to the
photos, but cannot use Alice's credentials) make this a problem in
authentication/authorization akin to other cloud service issues rather than
represent a printing specific issue. I think we discussed a similar case at
the meeting and decided we would defer to cloud service provider solutions
such as used in allowing friends to view cloud based photo albums or have
files shared via Dropbox (send the link/password encrypted??); or revert to
having Alice pull the photos though her device.
But even if we do not attempt to define a solution, I agree that this is a
potentially valid use case that we might list but decline to address.
Opinions from others in the working group??
Bill Wagner
-----Original Message-----
From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf Of
Randy Turner
Sent: Thursday, August 16, 2012 4:01 PM
To: cloud at pwg.org
Subject: [Cloud] new use case for cloud printing
During the recent F-to-F meeting and re-reading the current cloud use-cases,
I didn't see a use-case for accessing 3rd-party web site content to print
"from" - an example being.
Alice has a photo album stored on Flickr.com. She wants to print one or
more of her pictures from her Flickr album on a particular cloud printer.
This is similar to the print-by-reference case, in that Alice will probably
specify a URL (URI) to print "from". However, the cloud service will have
to authenticate on behalf of Alice to access her photo album (by reference),
and Alice must not reveal her Flickr authentication credentials to the cloud
service.
R.
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