fakex

#!/bin/bash
# (c) 2020 Leif Sawyer
# License: GPL 3.0 (see https://github.com/akhepcat/)
# Permanent home:  https://github.com/akhepcat/Miscellaneous/
# Direct download: https://raw.githubusercontent.com/akhepcat/Miscellaneous/master/fakex
# 

prereqs() {
        for i in Xvfb x11vnc xfwm4 xfce4-panel xterm xhost;
        do
                if [ -z "$(which $i)" ]
                then
                        showreqs=1
			reqs="${reqs} ${i}"
                fi
        done
        if [ 1 -eq ${showreqs:-0} ]
        then
                echo "Prerequisites are missing!"
                echo "Please make sure the following packages are installed:"
                echo ""
                echo "xvfb x11vnc xfwm4 xfwm4-themes xfce4-panel xfce4-indicator-plugin xterm x11-xserver-utils"
		echo ""
		echo "can't find: ${reqs}"
                echo ""
                [[ ${IGNORE:-0} -eq 0 ]] && exit 1
        fi

}

PROG="${0##*/}"
stop() {
        PIDS=$(pgrep Xvfb)
        for PID in $PIDS
        do
                kill ${PID}
        done
}

status() {
        pgrep -l Xvfb
        [[ $? -eq 1 ]] && echo "fakex is not running (no Xvfb processes found)"
}

XYRES=${XYRES:-1440x900}

do_xfwm4() {
	# different versions need different calling
	xfwm4 --display=${XDISP} 2>/dev/null & 
	if [ $? -ne 0 ]
	then
		DISPLAY=${XDISP} xfwm4 2>/dev/null &
	fi
}

do_xfce4() {
	# different versions need different calling
	xfce4-panel --display=${XDISP} 2>/dev/null &
	if [ $? -ne 0 ]
	then
		DISPLAY=${XDISP} xfce4-panel 2>/dev/null &

	fi
}

start() {
        USER=$(/usr/bin/whoami)
        HOST=$(/bin/hostname | cut -f 1 -d.)
        FBDIR=$(mktemp -d /tmp/vmfbXXXXX)

        # Base display is 1001, but will auto-increment for each additional...
        DISP=$(ps -ef|grep Xvfb | grep -v grep | sed 's/.*:\([0-9]*\).*/\1/' | tail -1)
        DISPLAY=${DISP:-1000}
        RFBPORT=$((DISPLAY + 4901))
        DISPLAY=":$((DISPLAY + 1))"

        Xvfb ${DISPLAY} -dpms -shmem -br -nolisten tcp -noreset -v -xinerama -ac -screen 0 ${XYRES}x16 -fbdir ${FBDIR} 2>/dev/null &
        sleep 2
        xterm -ls  -sl 1000 -sb -T ${USER}@${HOST} -fg white -bg black -C -fn 9x15 -display ${DISPLAY} 2>/dev/null &
        sleep 1
        do_xfwm4
        sleep 1
        do_xfce4
        sleep 1
        DISPLAY=${DISPLAY} xhost +localhost

	# -noxrecord works around x11vnc "stack smash" bug
        x11vnc -q ${LISTEN} -rfbport ${RFBPORT} -forever -noxrecord -alwaysshared -bg -nopw -display ${DISPLAY}
}

case "$1" in
        start) prereqs; start
                ;;
        startg) ADDR=$(ip -4 addr show scope global  dev $(awk 'BEGIN { IGNORECASE=1 } /^[a-z0-9]+[ \t]+00000000/ { print $1 }' /proc/net/route
) | awk '/inet/ { split($2, arr, "/"); print arr[1];}')
        	LISTEN="-listen $ADDR"
        	start
        	;;
        stop) stop
                ;;
        status) prereqs; status
                ;;
        *) echo "${PROG} [start|startg|stop|status]"
                ;;
esac