Launch a Synergy client or server, over SSH tunnels, on a Mac

synergy_at_work

#!/bin/bash
#
# This is part of my 'At Work' Automator app.
# Requires a standard Synergy installation.

OFFICE_LOCATION='My Office (Ethernet)'
SERVER_HOSTNAME='my-computer'
SERVER_IP='10.11.12.13'
SERVER_CONF='/Users/hipikat/.synergy_at_work.conf'
CLIENT_PRIVATE_KEY='/Users/hipikat/.ssh/id_rsa'

# Change to the Weboffice Network Location
scselect "$OFFICE_LOCATION"

# Disable Wi-Fi
networksetup -setairportpower en0 off

# If we're on our main work computer
# (i.e. whatever has the mouse and keyboard, etc.)
if [ `hostname` = "$SERVER_HOSTNAME" ]; then

    # We're the Synergy server - kill current server
    killall synergys
    sleep 1

    # Launch a new server
    /Applications/Synergy.app/Contents/MacOS/synergys \
        --address :24800 --daemon --no-tray --debug FATAL \
        --name is-m-00068 --enable-drag-drop \
        -c "$SERVER_CONF"
else

    # We're a client - kill old client processes
    killall synergyc

    # Kill old ssh tunnels if they're present
    tunnel_pids=`ps aux | grep '\d ssh -fNL 24800' | tr -s " " | cut -f 2 -d ' '`
    if [ -n "$tunnel_pids" ]; then
        for pid in $tunnel_pids; do
            kill -9 "$pid"
        done
    fi
    sleep 1

    # Create an ssh tunnel to the server on the standard Synergy port
    ssh -fNL 24800:localhost:24800 \
        -i "$CLIENT_PRIVATE_KEY" \
        "$SERVER_IP" &>/dev/null

    sleep 1

    # Launch the Synergy client
    /Applications/Synergy.app/Contents/MacOS/synergyc \
        --daemon --no-tray --debug INFO --enable-drag-drop \
        127.0.0.1:24800
fi