#!/bin/bash
#
# Copyright (C) 2013-2020 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 GnuTLS; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

SERV="${SERV:-../src/ocserv}"
srcdir=${srcdir:-.}
builddir=${builddir:-.}
OPIDFILE=pass-script.$$.tmp
OPIDFILE2=pass-script2.$$.tmp
PARAMSFILE=pass-script.params.$$.tmp

. `dirname $0`/common.sh

eval "${GETPORT}"

echo "Testing connect and disconnect script behavior"

rm -f ${OPIDFILE}
rm -f ${OPIDFILE2}

function finish {
  echo " * Cleaning up..."
  rm -f ${builddir}/connect.ok
  rm -f ${builddir}/disconnect.ok
  rm -f ${builddir}/host-update.ok
  test -n "${PID}" && kill ${PID} >/dev/null 2>&1
  test -f ${OPIDFILE} && kill $(cat ${OPIDFILE}) >/dev/null 2>&1
  rm -f ${OPIDFILE}
  rm -f ${OPIDFILE2}
  rm -f ${TMPFILE}
  rm -f ${PARAMSFILE}
  test -n "${PID}" && kill ${PID}
}
trap finish EXIT

rm -f ${builddir}/connect.ok
rm -f ${builddir}/disconnect.ok

OPENCONNECT="$OPENCONNECT --os=android"

$OPENCONNECT --help|grep local-hostname >/dev/null
if test $? != 0;then
	echo "Openconnect doesn't support --local-hostname"
	exit 77
fi

echo " * Testing local backend with username-password... "

update_config test-pass-script.config
launch_server -d 1 -f -c "${CONFIG}" & PID=$!
wait_server $PID

echo " * Connecting to obtain cookie with wrong username... "
( echo "tost" | $OPENCONNECT -q localhost:$PORT -u tost --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly >/dev/null 2>&1 ) &&
	fail $PID "Received cookie when we shouldn't"

rm -f ${builddir}/connect.ok
rm -f ${builddir}/disconnect.ok
rm -f ${builddir}/host-update.ok
#test special characters

echo " * Connecting to obtain cookie... "
( echo "!@#$%^&*()<>" | $OPENCONNECT -q localhost:$PORT -u "sp@c/al" --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly >/dev/null 2>&1 ) ||
	fail $PID "Could not receive cookie from server"

echo " * Re-connecting to force script run... "
echo "!@#$%^&*()<>" | timeout 7 $OPENCONNECT -q --local-hostname='mylocalname' localhost:$PORT -u "sp@c/al" --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true

TIMEOUT=5
while ! test -f ${builddir}/disconnect.ok; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${builddir}/disconnect.ok (1)"
	exit 1
    fi
    sleep 1
done

if ! test -f ${builddir}/connect.ok;then
	echo "Connect script was not run"
	exit 1
fi

if ! test -f ${builddir}/host-update.ok;then
	echo "Host-update script was not run (1)"
	exit 1
fi

if ! test -f ${builddir}/disconnect.ok;then
	echo "Disconnect script was not run properly (1)"
	exit 1
fi

rm -f ${builddir}/connect.ok
rm -f ${builddir}/disconnect.ok
rm -f ${builddir}/host-update.ok

echo " * Re-connecting to get cookie... "
echo "test2" | $OPENCONNECT -q localhost:$PORT -u "test2" --authenticate --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true >${PARAMSFILE}
if test $? != 0;then
	echo "Could not connect"
	cat ${PARAMSFILE}
	exit 1
fi

grep COOKIE ${PARAMSFILE}
if test $? != 0;then
	echo "Did not get cookie"
	exit 1
fi

echo " * Re-connecting to force session stealing... "
eval "$(grep COOKIE ${PARAMSFILE})"
echo ${COOKIE}| $OPENCONNECT --local-hostname='mylocalname' localhost:$PORT -u "test2" --reconnect-timeout 0 --cookie-on-stdin --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true --pid-file=${OPIDFILE} -b

echo " - Pausing client"
TIMEOUT=4
while ! test -f ${OPIDFILE}; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${OPIDFILE}"
	exit 1
    fi
    sleep 1
done

kill -s STOP $(cat ${OPIDFILE})

TIMEOUT=12
while ! test -f ${builddir}/connect.ok; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${builddir}/connect.ok"
	exit 1
    fi
    sleep 1
done

rm -f ${builddir}/connect.ok
rm -f ${builddir}/disconnect.ok

echo " * Re-connecting to steal previous IP address... "
echo ${COOKIE} | $OPENCONNECT -q --local-hostname='mylocalname' localhost:$PORT -u "test2" --reconnect-timeout 0 --cookie-on-stdin --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true --pid-file=${OPIDFILE2} -b

echo " - Resuming (disconnected) client"
kill -s CONT $(cat ${OPIDFILE})

TIMEOUT=6
while ! test -f ${builddir}/connect.ok; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${builddir}/connect.ok (3)"
	exit 1
    fi
    sleep 1
done

TIMEOUT=6
while ! test -f ${builddir}/disconnect.ok; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${builddir}/disconnect.ok (3)"
	exit 1
    fi
    sleep 1
done

rm -f ${builddir}/connect.ok
rm -f ${builddir}/disconnect.ok

echo " - Killing all clients"
sleep 2
test -f ${OPIDFILE2} && kill $(cat ${OPIDFILE2})
test -f ${OPIDFILE} && kill $(cat ${OPIDFILE})

echo " - Last check of files"

TIMEOUT=6
while ! test -f ${builddir}/disconnect.ok; do
    TIMEOUT=$(($TIMEOUT - 1))
    if [ $TIMEOUT -eq 0 ]; then
	echo "Timed out waiting for ${builddir}/disconnect.ok (4)"
	exit 1
    fi
    sleep 1
done


sleep 5
echo " - Check server status"

( echo "!@#$%^&*()<>" | $OPENCONNECT --local-hostname='mylocalname' -q localhost:$PORT -u "sp@c/al" --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= --cookieonly >/dev/null 2>&1 ) ||
	fail $PID "Could not receive cookie from server"

echo " - Killing server"
kill $PID
PID=""
wait

echo "Script tests were successful"

rm -f ${CONFIG}

exit 0