Excerpts for no-js-tracker.js

gistfile1.txt

var encodeWrapper: windowAlias.encodeURIComponent;

  /**
	 * A helper to build a SnowPlow request string from an
	 * an optional initial value plus a set of individual
	 * key-value pairs, provided using the add method.
	 *
	 * @param string initialValue The initial querystring, ready to have additional key-value pairs added
	 *
	 * @return object The request string builder, with add and build methods
	 */
	// TODO: add encode flag to add
	// TODO: add addIf() function
	function requestStringBuilder(initialValue) {
		var str = initialValue || '';
		return {
			add: function(key, value) {
				if (value !== undefined && value !== '') {
					str += '&' + key + '=' + SnowPlow.encodeWrapper(value);
				}
			},
			build: function() {
				return str;
			}
		}
	}


	function logEvent(category, action, label, property, value) {
		var sb = requestStringBuilder();
		sb.add('e', 'ev'); // 'ev' for custom EVent
		sb.add('ev_ca', category);
		sb.add('ev_ac', action)
		sb.add('ev_la', label);
		sb.add('ev_pr', property);
		sb.add('ev_va', value);
		var params = sb.build();
		request = getRequest(params, 'event');
		sendRequest(request, configTrackerPause);
	}

		// Build a request
		request += 
			'&p=' + configPlatform +
			'&tid=' + String(Math.random()).slice(2, 8) +
			(configAttachUserId ? '&uid=' + uuid : '') +
			'&fp='  + SnowPlow.encodeWrapper(fingerprint) +
			'&vid=' + visitCount +
			'&tv='  + SnowPlow.encodeWrapper(SnowPlow.version) +
			(configTrackerSiteId.length ? '&aid=' + SnowPlow.encodeWrapper(configTrackerSiteId) : '') +
			'&lang=' + browserLanguage +
			(configReferrerUrl.length ? '&refr=' + SnowPlow.encodeWrapper(purify(configReferrerUrl)) : '');