#!/bin/bash
# $Header: /var/cvsroot/gentoo-x86/mail-mta/netqmail/files/mkservercert,v 1.2 2007/05/05 05:16:58 vapier Exp $
# Self-signed certificate generator for Qmail under Gentoo
# Robin H. Johnson <robbat2@gentoo.org> - October 17, 2003
# Based on mkimapdcert from courier-imap.

test -x /usr/bin/openssl || exit 0
source /etc/init.d/functions.sh || exit 1

filedir="/var/qmail/control"
pemfile="${filedir}/servercert.pem"
randfile="${filedir}/servercert.rand"
conffile="${filedir}/servercert.cnf"

# file details for pemfile
mode="0640"
uid="qmaild"
gid="qmail"

# expire on certifcate
days="365"

if test -f $pemfile
then
	eerror "$pemfile already exists."
	exit 1
fi

ewarn "Please customize ${conffile} before continuing!"
einfo "Press ENTER to continue, or CTRL-C to stop now."
read

# setup the temp file
cp /dev/null $pemfile
chmod 600 $pemfile
chown root $pemfile

cleanup() {
	rm -f $pemfile
	rm -f $randfile
	exit 1
}

dd if=/dev/urandom of=${randfile} bs=64 count=1 2>/dev/null
chmod 600 ${randfile}
einfo "Creating self-signed certificate"
/usr/bin/openssl req -new -x509 -days ${days} -nodes \
	-config ${conffile} -out $pemfile -keyout $pemfile -rand ${randfile} || cleanup
einfo "Certificate details"
/usr/bin/openssl x509 -subject -dates -fingerprint -noout -in $pemfile || cleanup
chown ${uid}:${gid} ${pemfile}
chmod ${mode} ${pemfile}
#qmail needs an extra item
ln -s ${pemfile} ${filedir}/clientcert.pem
rm -f $randfile