#!/bin/sh

set -e

# Source debconf library
. /usr/share/debconf/confmodule

add_override() {
    if ! dpkg-statoverride --list $4 >/dev/null; then
	dpkg-statoverride --update --add $1 $2 $3 $4
    fi
}

if [ "$1" = "configure" ]; then
    # depending on whether or not manpages are included (nodoc profile),
    # install different alternatives

    # alternative for deliverquota
    if [ -f /usr/share/man/man8/deliverquota.courier.8.gz ]; then
	DELIVERQUOTA_SLAVE="--slave /usr/share/man/man8/deliverquota.8.gz deliverquota.8.gz /usr/share/man/man8/deliverquota.courier.8.gz"
    fi
    update-alternatives --install /usr/bin/deliverquota deliverquota /usr/bin/deliverquota.courier 10 ${DELIVERQUOTA_SLAVE}

    # alternative for maildir
    if [ -f /usr/share/man/man5/maildir.courier.5.gz ]; then
	update-alternatives --install /usr/share/man/man5/maildir.5.gz maildir.5.gz /usr/share/man/man5/maildir.courier.5.gz 5
    fi

    # alternative for maildirmake
    if [ -f /usr/share/man/man1/maildirmake.courier.1.gz ]; then
	MAILDIRMAKE_SLAVE="--slave /usr/share/man/man1/maildirmake.1.gz maildirmake.1.gz /usr/share/man/man1/maildirmake.courier.1.gz"
    fi
    update-alternatives --install /usr/bin/maildirmake maildirmake /usr/bin/maildirmake.courier 5 ${MAILDIRMAKE_SLAVE}
	    
    # alternative for maildirquota
    if [ -f /usr/share/man/man7/maildirquota.courier.7.gz ]; then
	update-alternatives --install /usr/share/man/man7/maildirquota.7.gz maildirquota.7.gz /usr/share/man/man7/maildirquota.courier.7.gz 5
    fi

    # alternative for makedat
    if [ -f /usr/share/man/man1/makedat.courier.1.gz ]; then
	MAKEDAT_SLAVE="--slave /usr/share/man/man1/makedat.1.gz makedat.1.gz /usr/share/man/man1/makedat.courier.1.gz"
    fi
    update-alternatives --install /usr/bin/makedat makedat /usr/bin/makedat.courier 5 ${MAKEDAT_SLAVE}


    # create courier user and group
    if ! getent passwd courier > /dev/null; then
	adduser --quiet --system --group --no-create-home --home /var/lib/courier courier
    fi

    # generate dhparams
    if [ ! -f /etc/courier/dhparams.pem ]; then
	mkdhparams
	chmod 0640 /etc/courier/dhparams.pem
	chown root:courier /etc/courier/dhparams.pem
    fi

    add_override root courier 0755 /etc/courier
    add_override root courier 0750 /etc/courier/shared
    add_override root courier 0750 /etc/courier/hosteddomains
    add_override root courier 0750 /etc/courier/esmtpacceptmailfor.dir
    add_override courier courier 0750 /var/lib/courier
fi



exit 0