[cups.general] Cups doesnt support IPP Reference printing ?

Michael Sweet msweet at apple.com
Mon Nov 7 22:20:07 PST 2011


On Nov 7, 2011, at 8:27 PM, chandrashekar wrote:
> Hi,
> 
> I verified in cups that IPP Reference Printing is not supported. Can I know the exact reason why it is not incorporated or can we do it referring IPP Protocol stack.


The CUPS scheduler (cupsd) does not support the Print-URI or Send-URI operations. This is on purpose: "file" URIs are (generally) a security hole and require very special handling to avoid common race conditions.  "ftp", "http", and "https" URIs often require authentication information or cookies, making access from the scheduler difficult if not impossible in many cases, and for things like web pages you need to access multiple URLs, not just a single one.

__________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair





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