[cups] Provide password for CLI tools

[Stephan]

Michael,

using the CUPS-Create-Local-Printer operation was my first idea, however it
cannot be invoked remotely. lpadmin cannot silently create remote IPP
everywhere queues when authentication is required. I want to prevent adding
other ways talking to the CUPS servers insted of the scheduler itself (e.g.
SSH with authentication keys). If I understand correctly, the new dynamic
API is a good thing for desktops, but isn´t really usable in my datacenter
scenario where several 10.000s of printers are managed on dozens of print
servers.

One last thing that comes to my mind is the Webinterface. Would it be
possible to connect to it in a REST style fashion and add IPP everywhere
queues?

2017-04-03 16:00 GMT+02:00 Michael Sweet <msweet at apple.com>:

> Stephan,
>
> The existing CUPS-Create-Local-Printer operation (added in CUPS 2.2)
> handles PPD creation for IPP print queues and calls down to the private API
> (_ppdCreateFromIPP, added in CUPS 2.1) used by lpadmin when you specify "-m
> everywhere".  Local queues can then be "promoted" to regular queues by
> setting the "printer-is-shared" attribute to 'true' with the
> CUPS-Add-Modify-Printer operation.
>
> While I don't see us officially promoting _ppdCreateFromIPP to public API,
> it is unlikely to change and I know Till's cups-browsed add-on uses it.
> Ultimately, however, we hope that developers will finally migrate to the
> dynamic printer APIs that were added in CUPS 1.4 (!) that don't depend on
> static queues to show every possible print queue in the universe and (at
> least as of CUPS 2.2) will automatically create a short-lived queue for the
> printers that *are* used.
>
>
> > On Apr 3, 2017, at 7:08 AM, Stephan <stephanwib at googlemail.com> wrote:
> >
> > Michael,
> >
> > could you please comment on my proposal to create a tool that can save a
> > PPD file for an IPP Everywhere printer, instead of creating a new queue
> on
> > a CUPS server?
> >
> >
> > Thanks and regards,
> >
> > Stephan
> >
> >
> > 2017-03-24 13:05 GMT+01:00 Stephan <stephanwib at googlemail.com>:
> >
> >> Michael,
> >>
> >> I think we can pretty much easily implement most CUPS operations in our
> >> own IPP client implementation, which can then use one of the HTTP
> >> authentication mechanisms supported. However, there is one thing we can
> not
> >> replace, that  is the IPP Everywhere printer creation. What would be of
> >> help is a way to save a PPD for an IPP Everywhere printer. We could then
> >> create a PPD locally and call CUPS-Add-Modify-Printer on the remote
> server.
> >>
> >> How would you judge extending lpadmin so that it can save a PPD insted
> of
> >> creating a queue for an IPP everywhere printer, or to provide a separate
> >> tool that can do this?
> >>
> > _______________________________________________
> > cups mailing list
> > cups at cups.org
> > https://lists.cups.org/mailman/listinfo/cups
>
> _________________________________________________________
> Michael Sweet, Senior Printing System Engineer
>
> _______________________________________________
> cups mailing list
> cups at cups.org
> https://lists.cups.org/mailman/listinfo/cups
>