lib/oauth.js
function getProvider(pathname) {
    var items = pathname.split('/');
    var index = items.indexOf('callback');
    if(index > 0) {
      return items[index-1];
    }
  }
function getProvider(pathname) {
    var items = pathname.split('/');
    var index = items.indexOf('callback');
    if(index > 0) {
      return items[index-1];
    }
  }
Gets the provider name from a callback path