/*
 * Handy proxy auto configuration script to proxy
 * requsts via your UK server.
 *
 * @author Bonstio (proxy at bonstio.net)
 */

function FindProxyForURL(url, hostname) {
  // Websites to proxy.
  var UK_HOSTS = [
    'bbc.co.uk',
    'spotify.com',
    'last.fm',
    'tvcatchup.com',
    'www.channel4.com',
    'www.whatismyip.com',
    'facebook.com',
    'fbcdn.com',
    'hotmail.com',
    'live.com',
    'inskinad.com'];

  var SSH_CLIENT = 'bert:8123';
  var DIRECT = 'DIRECT';
  var SOCKS_PROXY = 'SOCKS ' + SSH_CLIENT + ';' + DIRECT;

  // Default to direct.
  var proxy = DIRECT;

  if (url.indexOf('useProxy=true') >= 0) {
    // Use proxy if specified in URL e.g. www.somewebsite.com?useProxy
    proxy = SOCKS_PROXY;
  } else { 
    // See if the current website is on the proxy list.
    for (var i=0, host; host = UK_HOSTS[i]; i++) {
      if (shExpMatch(url, "*." + host + "/*")) {
        proxy = SOCKS_PROXY;
        break;
      }
    }
  }
  // Log some debug info out if requested.
  if (url.indexOf('debugProxy=true') >= 0) {
    // alert does not flash up a JS alert box but logs to the
    // JS console in this case.
    alert('Using proxy "' + proxy + '" for url ' + url + ' with host ' + hostname);
  }
  return proxy;
}