OpenThinClient.org v1.0 custom script for scanbuttond

#!/bin/sh

LOCKFILE="/tmp/scan.lock"

TMPFILE="scans/$(hostname)_$(date +%Y-%m-%d_%H-%M-%S)"

SSH_CMD="ssh -i /etc/ssh/ssh_host_rsa_key scan@linux"
SSH_CMD_BG="ssh -n -i /etc/ssh/ssh_host_rsa_key scan@linux"


case $1 in
        1)      SCAN_PARAM="--mode Color --resolution 200"; CONVERT_PARAM="-quality 80" ;;
        2)      SCAN_PARAM="--mode Gray  --resolution 200"; CONVERT_PARAM="-quality 80 -colorspace Gray"        ;;
        3)      SCAN_PARAM="--mode Color --resolution 400"; CONVERT_PARAM="-quality 70" ;;
        4)      SCAN_PARAM="--mode Gray  --resolution 400"; CONVERT_PARAM="-quality 70 -colorspace Gray"        ;;
esac


case $1 in
        1|2|3|4)
                if [ -f $LOCKFILE ]; then
                        echo "Error: Another scanning operation is currently in progress"
                        exit
                else
                        echo "button $1 has been pressed on $2"

                        touch $LOCKFILE
                        scanimage  $SCAN_PARAM  --format tiff | $SSH_CMD 'cat > '"$TMPFILE"".tiff"
                        rm -f $LOCKFILE

                        $SSH_CMD_BG convert $CONVERT_PARAM "$TMPFILE"".tiff"  "$TMPFILE"".jpg"
                        $SSH_CMD_BG convert $CONVERT_PARAM "$TMPFILE"".jpg"   "$TMPFILE"".pdf"
                        $SSH_CMD_BG rm "$TMPFILE"".tiff"
                fi
                ;;
esac