#!/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/>.
#

OCCTL="${OCCTL:-../src/occtl/occtl}"
SERV="${SERV:-../src/ocserv}"
srcdir=${srcdir:-.}
PIDFILE=ocserv-pid.$$.tmp
CLIPID=oc-pid.$$.tmp
HACONFIG=haproxy.conf.$$.tmp
PATH=${PATH}:/usr/sbin
OCCTL_SOCKET=./occtl-haproxy-$$.socket
HAPROXY=$(which haproxy)
IP=$(which ip)
OUTPUT=./proxyproto.tmp

. `dirname $0`/common.sh

eval "${GETPORT}"
HAPORT=${PORT}

eval "${GETPORT}"

if test -z "${HAPROXY}";then
	echo "no haproxy present"
	exit 77
fi

if test -z "${IP}";then
	echo "no IP tool 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 connection via haproxy... "

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

rm -f proxyproto-connect-ok

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

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

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

sleep 1

rm -f ${HACONFIG}
sed -e 's|@HAPORT@|'${HAPORT}'|g' -e 's|@PORT@|'${PORT}'|g' -e 's|@ADDRESS@|'${ADDRESS}'|g' ${srcdir}/data/haproxy-proxyproto.cfg >${HACONFIG}
${CMDNS2} ${HAPROXY} -f ${HACONFIG} -d & HAPID=$!

sleep 3

# Run clients
echo " * Getting cookie from ${ADDRESS}:${HAPORT}..."
( echo "test" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${HAPORT} -u test --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly )
if test $? != 0;then
	echo "Could not get cookie from server"
	exit 1
fi

echo " * Connecting to ${ADDRESS}:${HAPORT}..."
( echo "test" | ${CMDNS1} ${OPENCONNECT} -q ${ADDRESS}:${HAPORT} -u test --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

set -e
echo " * ping remote address"

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

set +e

${CMDNS2} ${OCCTL} -j -s ${OCCTL_SOCKET} show user test >$OUTPUT
if test $? != 0;then
	echo "occtl didn't find connected user!"
	exit 1
fi
REMOTE_IP=$(cat $OUTPUT|grep "Remote IP"|sed 's/[",\ ]//g'|cut -d ':' -f 2)

if test "$REMOTE_IP" != "$CLI_ADDRESS";then
	echo Remote IP: $REMOTE_IP
	echo Client IP: $CLI_ADDRESS
	exit 1
fi

echo " * Connecting with wrong password ${ADDRESS}:${HAPORT}..."
( echo "xxest" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${HAPORT} -u test --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly )
if test $? = 0;then
	echo "Got cookie unexpectedly!"
	exit 1
fi

( echo "xxest" | ${CMDNS1} ${OPENCONNECT} ${ADDRESS}:${HAPORT} -u test --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly )
if test $? = 0;then
	echo "Got cookie unexpectedly!"
	exit 1
fi

${CMDNS2} ${OCCTL} -s ${OCCTL_SOCKET} show ip ban points >${OUTPUT}
POINTS=$(grep "$CLI_ADDRESS" ${OUTPUT}|tr -s ' '|sed 's/^ //g'|cut -d ' ' -f 2)
if test "$POINTS" -lt 20;then
	echo "Client did not get ban points ($CLI_ADDRESS - $POINTS)"
	cat $OUTPUT
	exit 1
fi

echo " * checking for connect-ok"
if ! test -f proxyproto-connect-ok;then
	echo "Could not find file written by script"
	exit 1
fi

if ! test -f ${PIDFILE};then
	echo "Could not find pid file ${PIDFILE}"
	exit 1
fi

exit 0