#!/usr/bin/env bash
# -------------------------------------------------------------------------------
#  Modify ImageMagick configuration file to allow PDF and PostScript generation
#
#  Revision history :
#    06/10/2018, V1.0 - Creation by N. Bernaerts
#    02/05/2020, V1.1 - Increase memory limit by 8 factor
# -------------------------------------------------------------------------------

# initialisation
CONF_FILE="/etc/ImageMagick-6/policy.xml"

# if imagemagick configuration file exists
if [ -f "${CONF_FILE}" ]
then
  # remove culprit lines
  sudo sed -i '/disable ghostscript format types/d' "${CONF_FILE}"
  sudo sed -i '/\"PS\"/d' "${CONF_FILE}"
  sudo sed -i '/\"EPS\"/d' "${CONF_FILE}"
  sudo sed -i '/\"PDF\"/d' "${CONF_FILE}"
  sudo sed -i '/\"XPS\"/d' "${CONF_FILE}"

  # increase memory limit by 8 factor
  sudo sed -i 's|16KP|128KP|g' "${CONF_FILE}"
  sudo sed -i 's|128MP|1024MP|g' "${CONF_FILE}"
  sudo sed -i 's|256MiB|2GiB|g' "${CONF_FILE}"
  sudo sed -i 's|512MiB|4GiB|g' "${CONF_FILE}"
  sudo sed -i 's|1GiB|8GiB|g' "${CONF_FILE}"

  # log and display
  logger "ImageMagick PDF and PostScript restriction removal"
  echo "ImageMagick PDF and PostScript restriction removal"
fi