entrypoint.sh

#!/bin/bash

if [[ -z "$GW_ID" ]]; then
    echo "Must provide GW_ID in environment"
    exit 1
fi

### Init logging ###
HISTORY="/var/logs/gw"$GW_ID"_history"
STATE="/var/logs/gw"$GW_ID"_state"
touch $STATE
echo "start_gw:$(date +'%b %d %H:%M:%S')"> $HISTORY

cleanup() {
    echo "Cleaning up..."
    ### Quit Selenium/Chrome ###
    DISPLAY=:${SERVERNUM0} xdotool key ctrl+W
    ### Quit Baresip ###
    echo "/quit" | netcat -q 1 127.0.0.1 5555
    sleep 10
    killall ffmpeg Xvfb
}

trap 'cleanup | logParse -p "Trap"' SIGINT SIGQUIT SIGTERM EXIT

check_Xvfb() {
    # 5 seconds timeout before exit
    timeOut=5
    timer=0
    state=$(xdpyinfo -display ":$1" >/dev/null 2>&1; echo $?)
    while [[ ($state == "1") && ($timer -lt $timeOut) ]]; do
        timer=$(($timer + 1))
        sleep 1
        state=$(xdpyinfo -display ":$1" >/dev/null 2>&1; echo $?)
    done
    if [ $timer -eq $timeOut ]; then
        echo "Xvfb :$1 failed to launch" | logParse -p "Xvfb"
        exit 1
    fi
}

check_v4l2() {
    # 5 seconds timeout before exit
    timeOut=5
    timer=0
    state=$(grep -q $1 $STATE; echo $?)
    while [[ ($state == "1") && ($timer -lt $timeOut) ]]; do
        timer=$(($timer + 1))
        sleep 1
        state=$(grep -q $1 $STATE; echo $?)
    done
    if [ $timer -eq $timeOut ]; then
        echo "V4l2 loopback failed to launch" | logParse -p "V4l2"
        exit 1
    fi
}

### Configure audio devices ###
if [ "$WITH_ALSA" == "true" ]; then
    ALSA_DEV='plug:baresip'
    HW0=$(( 2*$GW_ID ))
    (($HW0)) || HW0=""
    HW1=$(( 2*$GW_ID + 1 ))
    ALSA_CARD0="Loopback"${HW0:+'_'$HW0}
    ALSA_CARD1="Loopback"${HW1:+'_'$HW1}
    sed -i 's/Loopback,/'$ALSA_CARD0',/g' /etc/asound.conf
    sed -i 's/Loopback_1,/'$ALSA_CARD1',/g' /etc/asound.conf
else
    ./pulseaudio_init.sh  1> >( logParse -p "Pulse") \
                          2> >( logParse -p "Pulse")
fi

### Configure video display ###
VID_FPS="30"
PIX_DEPTH="24"

IFS="x" read -r VID_W_SIP VID_H_SIP <<<$VID_SIZE_APP
VID_WX2_SIP=$(( 2*$VID_W_SIP ))

mkdir -p /tmp/.X11-unix
sudo chmod 1777 /tmp/.X11-unix
sudo chown root /tmp/.X11-unix/

SERVERNUM0=99
echo "Server 0 Number= " $SERVERNUM0 | logParse -p "Xvfb"
Xvfb :$SERVERNUM0 -screen 0 \
      $VID_WX2_SIP"x"$VID_H_SIP"x"$PIX_DEPTH \
     +extension RANDR -noreset | logParse -p "Xvfb" &

SERVERNUM1=100
echo "Server 1 Number= " $SERVERNUM1 | logParse -p "Xvfb"
Xvfb :$SERVERNUM1 -screen 0 $VID_SIZE_WEBRTC"x"$PIX_DEPTH \
     +extension RANDR -noreset| logParse -p "Xvfb" &

### Check if Xvfb server is ready ###
check_Xvfb $SERVERNUM0
check_Xvfb $SERVERNUM1

DISPLAY=:$SERVERNUM0 xrandr --setmonitor screen0 \
        $VID_W_SIP"/640x"$VID_H_SIP"/360+0+0" screen | logParse -p "xrandr"
DISPLAY=:$SERVERNUM0 xrandr --setmonitor screen1 \
        $VID_W_SIP"/640x"$VID_H_SIP"/360+"$VID_W_SIP"+0" none | logParse -p "xrandr"

DISPLAY=:$SERVERNUM0 fluxbox | logParse -p "fluxbox" &
DISPLAY=:$SERVERNUM0 unclutter -idle 1 &

### Main application ###
source $MAIN_APP"/"$MAIN_APP".sh"

### Check if video device is ready ###
check_v4l2 "/dev/video0"

### Event handler ###
if [[ -n "$ROOM_NAME" ]]; then
    roomParam="-r "$ROOM_NAME
fi
cp "./browsing/"$BROWSE_FILE src
DISPLAY=:$SERVERNUM0 exec python3 src/event_handler.py -b `pwd`"/browsing/"$BROWSE_FILE \
                                                       -s $VID_SIZE_APP \
                                                       $roomParam $fromUri \
                          1> >( logParse -p "Event" -i $HISTORY )