#!/bin/sh

set -e

[ "$1" = "configure" ] || exit 0
[ $DEBIAN_SCRIPT_DEBUG ] && set -vx

# Include CARNet functions
. /usr/share/carnet-tools/functions.sh

PKG="squirrelmail-change-pass-cn"
VERSION="3.1.0"
SQCONFDIR="/etc/squirrelmail"
SQCONF="$SQCONFDIR/config.php"
need_restart=0


# chk_conf_tag ()
#
#   Check if configuration file has CARNet package info lines.
#   return:  $RET => 0 - tagged
#                    1 - file does not exists
#                    2 - file exists, but it is not tagged
#
chk_conf_tag () {
    local conf_file
    conf_file="$1"
    RET=1

    if [ -f "$conf_file" ]; then
        if egrep -q "^## Begin - Generated by CARNet package ${PKG}$" "$conf_file"; then
            RET=0
        else
            RET=2
        fi
    fi
}

# Configure poppassd to refuse connection from all hosts
# but localhost (127.0.0.1).
#
if [ ! -f /etc/hosts.deny ]; then
    touch /etc/hosts.deny
fi
if ! egrep -q '^poppassd:' /etc/hosts.deny; then
    echo "poppassd: ALL" | cp-update "$PKG" /etc/hosts.deny
fi
if [ ! -f /etc/hosts.allow ]; then
    touch /etc/hosts.allow
fi
if ! egrep -q '^poppassd:' /etc/hosts.allow; then
    echo "poppassd: 127.0.0.1" | cp-update "$PKG" /etc/hosts.allow
fi


# Enable change_pass plugin in SquirrelMail config.php.
#
if ! egrep -q '^\$plugins\[[0-9]+\][\ ]*=[\ ]*'\''change_pass'\' "$SQCONF"; then
    squirrelmail-configure --install-plugin change_pass
fi


# Convert poppassd service from inetd.conf to xinetd.conf type.
# Service configuration is saved in /etc/xinetd.d/ directory.
#
chk_conf_tag /etc/xinetd.d/poppassd
if [ $RET -lt 2 ]; then
    cp_echo "CN: Enabling poppassd in /etc/xinetd.d/poppassd"

    if [ ! -d /etc/xinetd.d ]; then
        mkdir -p /etc/xinetd.d/
    fi
    touch /etc/xinetd.d/poppassd.$$
    cp-update "$PKG" /etc/xinetd.d/poppassd.$$ <<EOF
service poppassd
{
	socket_type     = stream
	protocol        = tcp
	wait            = no
	user            = root
	server          = /usr/sbin/poppassd
}
EOF
    cp_mv /etc/xinetd.d/poppassd.$$ /etc/xinetd.d/poppassd

    need_restart=1
fi


# Restart xinetd if needed.
#
if [ $need_restart -eq 1 ]; then
    if [ -x "/etc/init.d/xinetd" ]; then
        if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
            invoke-rc.d xinetd restart || exit $?
        else
            /etc/init.d/xinetd restart || exit $?
        fi
    fi
fi


# Mail root
#
cp_mail "$PKG"

#DEBHELPER#

exit 0