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#!/bin/bash
# -----------------------------------------------------------------------------
# Copyright (c) 2009 - RZ Uni FR
# Copyright (c) 2009 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# pvs-vncsrv
# - This is a generic wrapper script for starting any userspace VNC server
# to offer connectivity from the pvs contol console. The script expects
# start/stop in $1, the port to start on in $2, the password in $3 and
# the rwpassword in $4.
# The latter one should be changed to piping for security reasons ...
# -----------------------------------------------------------------------------
# parameters for x11vnc
X11VNC_PARAMS="-bg -forever -repeat -display :0 -passwdfile rm:$HOME/.pvs/vncpasswd -o $HOME/.pvs/log.vncsrv -shared"
X11VNC_X11="0"
# at the moment the poolVSClient is expected to use the ~/.pvs directory
[ -d ~/.pvs ] || mkdir ~/.pvs
# write the password file
if [ -z "$4" ]; then
echo -e "__BEGIN_VIEWONLY__\n$3" > ~/.pvs/vncpasswd
else
echo -e "$4\n__BEGIN_VIEWONLY__\n$3" > ~/.pvs/vncpasswd
fi
# find xauthority file
find_xauth () {
FOUND=0
RETRIES=4
[ -z "$1" ] || RETRIES="$1"
[ -e "/var/lib/kdm/" ] &&
XAUTHFILE_KDM=`find /var/lib/kdm/ -iname "A\:0-*"`
[ -e "/var/run/xauth/" ] &&
XAUTHFILE_KDM2=$(find /var/run/xauth/ -iname "A\:0-*")
[ -e "/var/lib/xdm/authdir/authfiles/" ] &&
XAUTHFILE_XDM=$(find /var/lib/xdm/authdir/authfiles/ -iname "A\:0-*")
[ -e "/var/lib/gdm/" ] &&
XAUTHFILE_GDM=$(find /var/lib/gdm/ -iname *Xauth*)
[ -f "$XAUTHFILE_KDM" ] && FOUND=1 && XAUTHORITY="$XAUTHFILE_KDM"
[ -f "$XAUTHFILE_KDM2" ] && FOUND=1 && XAUTHORITY="$XAUTHFILE_KDM2"
[ -f "$XAUTHFILE_XDM" ] && FOUND=1 && XAUTHORITY="$XAUTHFILE_XDM"
[ -f "$XAUTHFILE_GDM" ] && FOUND=1 && XAUTHORITY="$XAUTHFILE_GDM"
if [ "$FOUND" -eq "0" ]; then
if [ "$RETRIES" -gt "0" ]; then
let "RETRIES-=1"
find_xauth "$RETRIES"
else
echo "start FAILED (can't find way to authenticate myself against X)" \
>>~/.pvs/log.vncsrv
exit 1
fi
else
echo "found authfile ($XAUTHORITY)" >>~/.pvs/log.vncsrv
fi
}
START_COMMAND="x11vnc"
case "$1" in
start)
[ -z "$2" -o -z "$3" ] && echo " Port and/or Password not set" \
>>~/.pvs/log.vncsrv
echo "$2 $3" >>~/.pvs/log.test
if [ ! -f ~/.pvs/vncpasswd ]; then
echo " Start FAILED (~/.pvs/vncpasswd not found)" >>~/.pvs/log.vncsrv
echo " Create it manualy and retry starting x11vnc" >>~/.pvs/log.vncsrv
exit 2;
fi
if [ $X11VNC_X11 = 1 ]; then
# find_xauth
START_COMMAND="$START_COMMAND -auth $XAUTHORITY $X11VNC_PARAMS"
else
START_COMMAND="$START_COMMAND $X11VNC_PARAMS"
fi
echo "$START_COMMAND" >>~/.pvs/log.vncsrv
echo "$OUTPUT" >>~/.pvs/log.vncsrv
OUTPUT=$($START_COMMAND -rfbport $2)
# return codes: http://tldp.org/LDP/abs/html/exitcodes.html
exit $?
;;
stop)
pid=$(pidof x11vnc)
if [ -z "$pid" ]
then
echo "x11vnc not running" >>~/.pvs/log.vncsrv
exit 1;
else
kill -9 $pid 2>/dev/null
echo "x11vnc stopped" >>~/.pvs/log.vncsrv
fi
;;
*)
echo "x11vnc startscript"
echo "Usage: $0 (start|stop)"
;;
esac
exit 0
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