#!/bin/bash
#
# Copyright (C) 2020 Nikos Mavrogiannopoulos
#
# This file is part of ocserv.
#
# ocserv 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.
#
# ocserv 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, see <http://www.gnu.org/licenses/>.
#


# This test checks whether an explicitly disconnected user via occtl
# can connect again using its cookie.

OCCTL="${OCCTL:-../src/occtl/occtl}"
SERV="${SERV:-../src/ocserv}"
srcdir=${srcdir:-.}
TMPFILE=ocfile.$$.tmp
PIDFILE=ocserv-pid.$$.tmp
CLIPID=oc-pid.$$.tmp
OCCTL_SOCKET=./occtl-$$.socket

. `dirname $0`/common.sh

eval "${GETPORT}"

if test "$(id -u)" != "0";then
	echo "This test must be run as root"
	exit 77
fi

echo "Testing ocserv disconnection via occtl... "

function finish {
  set +e
  echo " * Cleaning up..."
  test -n "${PID}" && kill ${PID} >/dev/null 2>&1
  test -n "${PIDFILE}" && rm -f ${PIDFILE} >/dev/null 2>&1
  test -n "${CLIPID}" && test -f ${CLIPID} && kill $(cat ${CLIPID}) >/dev/null 2>&1
  test -n "${CLIPID}" && rm -f ${CLIPID} >/dev/null 2>&1
  test -n "${CONFIG}" && rm -f ${CONFIG} >/dev/null 2>&1
  test -n "${TMPFILE}" && rm -f ${TMPFILE} >/dev/null 2>&1
}
trap finish EXIT

# server address
ADDRESS=10.32.81.0
CLI_ADDRESS=10.32.80.1
VPNNET=192.168.1.0/24
VPNADDR=192.168.1.1
VPNNET6=fcbe:735c:407a:3fc2:164d:fa21:1495:0/112
VPNADDR6=fcbe:735c:407a:3fc2:164d:fa21:1495:1

. `dirname $0`/ns.sh

# Run servers
update_config disconnect-user2.config
if test "$VERBOSE" = 1;then
DEBUG="-d 3"
fi

${CMDNS2} ${SERV} -p ${PIDFILE} -f -c ${CONFIG} ${DEBUG} & PID=$!

sleep 3

# Run clients
echo " * Getting cookie from ${ADDRESS}:${PORT}..."
( echo "test" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${PORT} -u test --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 --authenticate >${TMPFILE} )
if test $? != 0;then
	echo "Could not get cookie from server"
	exit 1
fi

eval $(cat ${TMPFILE})
echo " * Connecting to ${ADDRESS}:${PORT}..."
( ${CMDNS1} ${OPENCONNECT} -q ${ADDRESS}:${PORT} -u test --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 -s ${srcdir}/scripts/vpnc-script -C "${COOKIE}" --pid-file=${CLIPID} -b )
if test $? != 0;then
	echo "Could not connect to server"
	exit 1
fi

set -e
echo " * ping remote address"

${CMDNS1} ping -c 3 ${VPNADDR}

set +e

${OCCTL} -s ${OCCTL_SOCKET} disconnect user test
if test $? != 0;then
        echo "occtl didn't find connected user!"
        exit 1
fi

echo " * Re-connecting to obtain cookie after disconnect... "
( ${CMDNS1} ${OPENCONNECT} -q ${ADDRESS}:${PORT} -u test --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 -s ${srcdir}/scripts/vpnc-script -C "${COOKIE}" --pid-file=${CLIPID} -b )
if test $? = 0;then
	echo "Succeeded using the cookie to connect"
	exit 1
fi

sleep 2

${OCCTL} -s ${OCCTL_SOCKET} show user test
if test $? = 0;then
        echo "occtl found disconnected user!"
        exit 1
fi

exit 0