When I start with print wizard unencrypted, all input gets lost when web interface switches to encrypted

[michaelrsweet]

Version: 1.2-current
CUPS.org User: till.kamppeter

If I allow remote administration on a CUPS server and start the server's web interface with

http://host:631/

from a remote machine, then click the "Administration" tab and start adding a new printer by clicking one of the "Add printer" (manual setup) or "Add this printer" (automatic setup of auto-detected printer) I get into the Add Printer Wizard and all data is entered unencrypted (still on "http://..."). In the end, when the queue gets actually added, CUPS switches to SSL and shows an "Upgrade required" message, but instead of then being asked for the password in SSL mode, I get directed to

http://host:631/admin/

and have to do all steps of the Add Printer Wizard again, this time in SSL mode.

What I expect:

Either

make the web interface auto-upgrading to SSL before the wizard begins

OR

let it auto-upgrading to the step where I am (which would mean that in the end of the wizard the "Upgrade required" message appears and then the password dialog fires up and after entering the password I get confirmation that the queue is set up).

I prefer the first of the two, as if the URI contains a password (eg: smb://user:password@winserver/share/) the whole wizard always running in SSL mode protects the password in the URI.

[michaelrsweet]

CUPS.org User: mike

We can't do #2 since you can't redirect POST's.

I've updated the default cupsd.conf to add an Encryption Required line to the /admin location when SSL is available - that will achieve #1.