#!/bin/bash

URL=$(/sbin/e-smith/db configuration getprop openvpn-routed CrlUrl)
DOMAIN=$(/sbin/e-smith/db configuration get DomainName)

if [ -z $URL ]; then
    exit 0
fi

/usr/bin/wget $URL -O /tmp/cacrl.pem > /dev/null 2>&1

/usr/bin/openssl crl -inform PEM -in /tmp/cacrl.pem -text > /dev/null 2>&1

if [ "$?" -eq "0" ]; then
        /bin/mv -f /tmp/cacrl.pem /etc/openvpn/routed/pub/cacrl.pem > /dev/null 2>&1
else
        cat > /tmp/crlmail <<END

An error occured while updating the CRL for OpenVPN-Routed
because openssl didn't recognize the file as a valid CRL.
Below is the copy of the latest CRL downloaded from
$URL


END

        cat /tmp/cacrl.pem >> /tmp/crlmail
        mail -s 'CRL update failed' admin@$DOMAIN < /tmp/crlmail
fi

rm -f /tmp/cacrl.pem
rm -f /tmp/crlmail