#!/bin/bash
#
# Copyright (C) 2018 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 tests operation/traffic under compression (lzs or lz4).

OCCTL="${OCCTL:-../src/occtl/occtl}"
SERV="${SERV:-../src/ocserv}"
srcdir=${srcdir:-.}
PIDFILE=ocserv-pid.$$.tmp
CLIPID=oc-pid.$$.tmp
PATH=${PATH}:/usr/sbin
IP=$(which ip)
OUTFILE=traffic.$$.tmp
RADIUSLOG=radius-group.$$.log
RADIUSD=$(which radiusd)

if test -z "${RADIUSD}";then
	RADIUSD=$(which freeradius)
fi

. `dirname $0`/common.sh

eval "${GETPORT}"

if test -z "${IP}";then
	echo "no IP tool is present"
	exit 77
fi

if test -z "${RADIUSD}";then
	echo "no radiusd is present"
	exit 77
fi

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

echo "Testing ocserv and radius... "

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

# server address
. `dirname $0`/random-net.sh

# These must match the data/raddb/users:test-class user
VPNNET=192.168.94.0/24
VPNADDR=192.168.94.192
VPNNET6=fc7d:b139:f7ba:5f51:c634:e98e:b777:0/112
VPNADDR6=fc7d:b139:f7ba:5f51:c634:e98e:b777:1
OCCTL_SOCKET=./occtl-radius-group-$$.socket

. `dirname $0`/ns.sh

${CMDNS2} ${IP} link set dev lo up

# Run servers
${CMDNS2} ${RADIUSD} -d ${srcdir}/data/raddb/ -s -xx -l ${RADIUSLOG} &
RADIUSPID=$!

update_config radius-multi-group.config
if test "$VERBOSE" = 1;then
DEBUG="-d 3"
fi

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

sleep 4

USERNAME=test-multi-class
GROUP=unknown
echo " * Testing whether the unknown group is accepted... "
echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} -q ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly
if test $? = 0;then
	echo "Connected to server although we shouldn't with this group"
	exit 1
fi

USERNAME=test-multi-class
GROUP=nonexistent
echo " * Testing whether a non existent group is accepted... "
echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} -q ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly
if test $? = 0;then
	echo "Connected to server although we shouldn't with this group"
	exit 1
fi

echo " * Tests the radius group functionality"
USERNAME=test-multi-class
GROUP=group2
( echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s ${srcdir}/scripts/vpnc-script --pid-file=${CLIPID} --passwd-on-stdin -b )
if test $? != 0;then
	echo "Could not connect to server"
	exit 1
fi

sleep 6

${CMDNS1} ${IP} addr show|grep $(echo ${VPNADDR}|cut -d '.' -f 1-3)
if test $? != 0;then
	${CMDNS1} ${IP} addr show
	echo "Did not find expected IP in VPN"
	exit 1
fi

#${CMDNS1} ping -w 3 ${VPNADDR}
#if test $? != 0;then
#	echo "Could not ping server VPN IP"
#	exit 1
#fi

MATCH="Groupname: ${GROUP}"
${OCCTL} -s ${OCCTL_SOCKET} show user ${USERNAME} >${OUTFILE} 2>&1
grep "${MATCH}" ${OUTFILE}
if test $? != 0;then
	cat ${OUTFILE}
	echo "could not find group information"
	exit 1
fi

test -f "${CLIPID}" && kill $(cat ${CLIPID}) >/dev/null 2>&1
test -n "${CLIPID}" && rm -f ${CLIPID} >/dev/null 2>&1

sleep 4

GROUP=group4
echo " * Tests a different group functionality (${GROUP})"
USERNAME=test-multi-class
( echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s ${srcdir}/scripts/vpnc-script --pid-file=${CLIPID} --passwd-on-stdin -b )
if test $? != 0;then
	echo "Could not connect to server"
	exit 1
fi

sleep 6

${CMDNS1} ${IP} addr show|grep $(echo ${VPNADDR}|cut -d '.' -f 1-3)
if test $? != 0;then
	${CMDNS1} ${IP} addr show
	echo "Did not find expected IP in VPN"
	exit 1
fi

MATCH="Groupname: ${GROUP}"
${OCCTL} -s ${OCCTL_SOCKET} show user ${USERNAME} >${OUTFILE} 2>&1
grep "${MATCH}" ${OUTFILE}
if test $? != 0;then
	cat ${OUTFILE}
	echo "could not find group information"
	exit 1
fi

test -f "${CLIPID}" && kill $(cat ${CLIPID}) >/dev/null 2>&1
test -n "${CLIPID}" && rm -f ${CLIPID} >/dev/null 2>&1

sleep 6

GROUP=group4
echo " * Tests a multiple OU= groups functionality ($GROUP)"
USERNAME=test-multi-class-ou
( echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s ${srcdir}/scripts/vpnc-script --pid-file=${CLIPID} --passwd-on-stdin -b )
if test $? != 0;then
	echo "Could not connect to server"
	exit 1
fi

sleep 6

${CMDNS1} ${IP} addr show|grep $(echo ${VPNADDR}|cut -d '.' -f 1-3)
if test $? != 0;then
	${CMDNS1} ${IP} addr show
	echo "Did not find expected IP in VPN"
	exit 1
fi

MATCH="Groupname: ${GROUP}"
${OCCTL} -s ${OCCTL_SOCKET} show user ${USERNAME} >${OUTFILE} 2>&1
grep "${MATCH}" ${OUTFILE}
if test $? != 0;then
	cat ${OUTFILE}
	echo "could not find group information"
	exit 1
fi

test -f "${CLIPID}" && kill $(cat ${CLIPID}) >/dev/null 2>&1
test -n "${CLIPID}" && rm -f ${CLIPID} >/dev/null 2>&1
sleep 4

GROUP=group1
echo " * Tests a multiple OU= groups functionality ($GROUP)"
USERNAME=test-multi-class-ou
( echo "${USERNAME}" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${PORT} --authgroup ${GROUP} -u ${USERNAME} --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s ${srcdir}/scripts/vpnc-script --pid-file=${CLIPID} --passwd-on-stdin -b )
if test $? != 0;then
	echo "Could not connect to server"
	exit 1
fi

sleep 6

${CMDNS1} ${IP} addr show|grep $(echo ${VPNADDR}|cut -d '.' -f 1-3)
if test $? != 0;then
	${CMDNS1} ${IP} addr show
	echo "Did not find expected IP in VPN"
	exit 1
fi

MATCH="Groupname: ${GROUP}"
${OCCTL} -s ${OCCTL_SOCKET} show user ${USERNAME} >${OUTFILE} 2>&1
grep "${MATCH}" ${OUTFILE}
if test $? != 0;then
	cat ${OUTFILE}
	echo "could not find group information"
	exit 1
fi

exit 0