XBMC/Tvheadend post-record shutdown script

post-record

#!/usr/bin/env ruby
require 'net/http'
require 'json'

uri = URI 'http://localhost:8080/jsonrpc'

jsonrpc = Net::HTTP::Post.new uri
jsonrpc.add_field 'Content-Type', 'application/json'
jsonrpc.add_field 'Accept', 'application/json'

get_active_players = '{"jsonrpc": "2.0", "method": "Player.GetActivePlayers", "id": 1}'
shutdown = '{"jsonrpc": "2.0", "method": "System.Shutdown", "id": 1}'

begin
    activeplayers = nil
    Net::HTTP.start uri.host, uri.port do |http|
        jsonrpc.body = get_active_players
        activeplayers = JSON.parse http.request(jsonrpc).body
    end

    logged_in = `users`.split
    current_user = `whoami`.strip
    xbmc_user = "xbmc"
    browser = `ps ax | grep chrome | grep -v grep`

    logged_in.delete current_user
    logged_in.delete xbmc_user

    if activeplayers["result"].length > 0
        puts "Kodi Player Active, not shutting down"
        exit
    end

    if !browser.empty?
        puts "Browser active, not shutting down"
        exit
    end

    if logged_in.length > 0
        puts "Users logged in, not shutting down"
    end

    sleep 60

    Net::HTTP.start uri.host, uri.port do |http|
        jsonrpc.body = shutdown
        http.request(jsonrpc)
    end
rescue Timeout::Error => e
    puts "Timeout, not shutting down"
end