#!/bin/sh
# postinst script for kasmvnc
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <postinst> `abort-remove'
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see https://www.debian.org/doc/debian-policy/ or
# the debian-policy package

kasmvnc_group="kasmvnc"

create_kasmvnc_group() {
  if ! getent group "$kasmvnc_group" >/dev/null; then
          addgroup --quiet --system "$kasmvnc_group"
  fi
}

make_self_signed_certificate() {
  local cert_file=/etc/kasmvnc/server.pem
  [ -f "$cert_file" ] && return 0

  openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout "$cert_file" \
  -out "$cert_file" -subj \
  "/C=US/ST=VA/L=None/O=None/OU=DoFu/CN=kasm/emailAddress=none@none.none"
  chgrp "$kasmvnc_group" "$cert_file"
  chmod g+r "$cert_file"
}

create_kasmvnc_group

case "$1" in
    configure)
      bindir=/usr/bin
      mandir=/usr/share/man
      commands="kasmvncserver kasmvncpasswd kasmvncconfig Xkasmvnc"

      for kasm_command in $commands; do
        generic_command=`echo "$kasm_command" | sed -e 's/kasm//'`;
        update-alternatives --install "$bindir/$generic_command" \
          "$generic_command" "$bindir/$kasm_command" 90 \
          --slave "$mandir/man1/$generic_command.1.gz" "$generic_command.1.gz" \
            "$mandir/man1/$kasm_command.1.gz"
      done

      make_self_signed_certificate
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0