We are using cups-pdf to create printer which is shared on windows using ipp.

Since we are not getting users from windows in our setup, we need cups-pdf
PostProcessing hook to look find user from pGinaSessions.


sudo vi /etc/cups/cups-pdf.conf

PostProcessing /srv/safeq/cups-pdf-find-owner.pl


To make this work, you also have to edit apparmor:

sudo vi /etc/apparmor.d/usr.sbin.cupsd

edit end of file, under /usr/lib/cups/backend/cups-pdf {
add permission for script execution:
...
  /var/spool/cups/** r,
  /var/spool/cups-pdf/** rw,

  # safeq ffzg -- added to allow execution of PostProcessing
  /srv/safeq/cups-pdf-find-owner.pl uxr,
}



apparmor_parser -r /etc/apparmor.d/usr.sbin.cupsd

/etc/init.d/apparmor restart