#!/bin/bash
# -------
# File:        lliurex-user-certs
# Description: lliurex-user-certs session script
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston MA 02110-1301 USA
# --------


# variables

MOZILLA_DIR=".mozilla"
FIREFOX_CERT_DB="cert9.db"

# variables
CA_CERTS_DIR="/usr/share/ca-certificates"
LCERTS_DIR="${CA_CERTS_DIR}/lliurex-certs"
LCERTS_CFG="/etc/ca-certificates.conf"

# functions
get_rel_files(){
   [ -d "$1" ] || return 0
   find "$1" -xtype f -printf "%P\0"
   return 0
}


if [ -d "$HOME/$MOZILLA_DIR" ] ; then
	# Mozilla user settings directory exist
	cert_databases=$(find "$HOME/$MOZILLA_DIR" -name "$FIREFOX_CERT_DB")
	for cert_db in ${cert_databases} ; do 
		dirname_cert=$(dirname "$cert_db")
		get_rel_files "$LCERTS_DIR" |while read -d $'\0' relcert ; do
                	certificate="$LCERTS_DIR/$relcert"
			info="$(openssl x509 -in $certificate -noout -subject |sed -e "s%^.*\/CN=\([^/]\+\).*$%\1%")"
			ADD_CERTIFICATE="Y"
			# search in database
			if certutil -L -d "$dirname_cert" | grep -q "^$info" ; then
				TMP1="$(tempfile)"
				# dump new certificate
				openssl x509 -in $certificate > "$TMP1" || true
				TMP2="$(tempfile)"
                                # dump current certificate
				certutil -L -a -d "$dirname_cert" -n "$info" > "$TMP2" || true
				# compare without cr/lf
				if diff -q --strip-trailing-cr "$TMP1" "$TMP2" >/dev/null ; then
					# are just the same, so do nothing
					ADD_CERTIFICATE=""
				else
					# remove old
					certutil -D -n "$info" -d "$dirname_cert" || true
				fi
				rm -f "$TMP1" "$TMP2"
			fi
			if [ "$ADD_CERTIFICATE" = "Y" ] ; then
				certutil -A -n "$info" -t "CT,C,C" -i "$certificate" -d "$dirname_cert"
			fi
		done
	done
fi

exit 0