https://2go.iccwbo.org/static/version1790153053/frontend/ICC/defau…/Smile_ElasticsuiteTracker/js/tracking.js

1/* global document: true */
2/* global window: true */
3/* global console: true */
4/* exported smileTracker */
5
6var smileTracker = (function () {
7
8    "use strict";
9
10    var guid = (function() {
11        function s4() {
12            return Math.floor((1 + Math.random()) * 0x10000)
13                .toString(16)
14                .substring(1);
15        }
16        return function() {
17            return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
18                s4() + '-' + s4() + s4() + s4();
19        };
20    }());
21
22    function getCookie(cookieName) {
23        var name = cookieName + "=";
24        var ca = document.cookie.split(';');
25        for (var i = 0; i < ca.length; i++) {
26            var c = ca[i];
27            while (c.charAt(0) === ' ') c = c.substring(1);
28            if (c.indexOf(name) !== -1) return c.substring(name.length, c.length);
29        }
30        return null;
31    }
32
33    function setCookie(cookieName, cookieValue, expiresAt, path) {
34        var expires = "expires=" + expiresAt.toUTCString();
35        document.cookie = cookieName + "=" + cookieValue + "; " + expires + "; path=" + path;
36    }
37
38    // Retrieve values for a param into URL
39    function getQueryStringParameterByName(name) {
40        var results = null;
41
42        if (name && name.replace) {
43            name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
44            var regex = new RegExp("[\\?&]" + name + "=([^&#]*)");
45            results = regex.exec(window.location.search);
46        }
47
48        return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
49    }
50
51    // Add page title and page URL to the tracked variables
52    function addStandardPageVars() {
53        // Website base url tracking (eg. mydomain.com)
54        this.addPageVar("site", window.location.hostname);
55
56        // Page URL tracking (eg. home.html)
57        this.addPageVar("url", window.location.pathname);
58
59        // Page title tracking
60        this.addPageVar("title", document.title);
61    }
62
63    // Append GA campaign variable to the tracked variables
64    // Following URL variables are used :
65    // - utm_source
66    // - utm_campaign
67    // - utm_medium
68    function addCampaignVars() {
69
70        // GA variables to be fetched from URI
71        var urlParams = ['utm_source', 'utm_campaign', 'utm_medium', 'utm_term'];
72
73        urlParams.forEach(function (element) {
74            var paramName = element;
75            var paramValue = getQueryStringParameterByName(paramName);
76            if (paramValue) {
77                // Append the GA param to the tracker
78                this.addPageVar(paramName, paramValue);
79            }
80        }.bind(this));
81    }
82
83    function addReferrerVars() {
84        if (document.referrer) {
85            var parser = document.createElement('a');
86            parser.href = document.referrer;
87            this.addPageVar('referrer.domain', parser.hostname);
88            this.addPageVar('referrer.page', parser.pathname);
89        }
90    }
91
92    function addResolutionVars() {
93        this.addPageVar('resolution.x', window.screen.availWidth);
94        this.addPageVar('resolution.y', window.screen.availHeight);
95        return this;
96    }
97
98    function addMetaPageVars() {
99        var metaTags = document.getElementsByTagName('meta');
100        for (var tagIndex = 0; tagIndex < metaTags.length; tagIndex++) {
101            if (metaTags[tagIndex].getAttribute('name')) {
102                var components = metaTags[tagIndex].getAttribute('name').split(':');
103                if (components.length === 2 && components[0] === 'sct') {
104                    var varName = components[1];
105                    this.addPageVar(varName, metaTags[tagIndex].getAttribute('content'));
106                }
107            }
108        }
109    }
110
111    function getTrackerUrl() {
112
113        initSession.bind(this)();
114
115        if (this.trackerSent === false) {
116            addStandardPageVars.bind(this)();
117            addReferrerVars.bind(this)();
118            addCampaignVars.bind(this)();
119            addMetaPageVars.bind(this)();
120            addResolutionVars.bind(this)();
121        }
122
123        var urlParams = [];
124
125        for (var currentVar in this.vars) {
126            if ({}.hasOwnProperty.call(this.vars, currentVar)) {

127                urlParams.push(currentVar + "=" + this.vars[currentVar]);
128            }
129        }
130
131        return this.baseUrl + "?" + urlParams.join('&');
132    }
133    
134    function setTrackerStyle(imgNode) {
135        imgNode.setAttribute('style', 'position: absolute; top: 0; left: 0; visibility: hidden;');
136    }
137
138    // Send the tag to the remote server
139    // Append a transparent pixel to the body
140    function sendTag(forceCollect) {
141        if (this.trackerSent === false || forceCollect === true) {
142            var bodyNode = document.getElementsByTagName('body')[0];
143
144            if (this.config && this.config.hasOwnProperty('sessionConfig')) {
145                var trackingUrl = getTrackerUrl.bind(this)();
146                var imgNode = document.createElement('img');
147                imgNode.setAttribute('src', trackingUrl);
148                imgNode.setAttribute('alt', '');
149                setTrackerStyle(imgNode);
150                bodyNode.appendChild(imgNode);
151                this.trackerSent = true;
152                this.vars = {};
153            }
154        }
155    }
156
157    // Append a variable to the page
158    function addVariable(varName, value) {
159        this.vars[varName] = encodeURIComponent(value);
160        return this;
161    }
162
163    function addSessionVar(varName, value) {
164        addVariable.bind(this)(transformVarName.bind(this)(varName, 'session'), value);
165    }
166
167    function addPageVar(varName, value) {
168        addVariable.bind(this)(transformVarName.bind(this)(varName , 'page'), value);
169    }
170
171    function transformVarName(varName, prefix) {
172        return prefix + "[" + varName.replace(/[.]/g, "][") + "]";
173    }
174
175    function initSession() {
176        if (this.config && this.config.hasOwnProperty('sessionConfig')) {
177            var config   = this.config.sessionConfig;
178            var expireAt = new Date();
179            var path     = config['path'] || '/';
180
181            if (getCookie(config['visit_cookie_name']) === null) {
182                expireAt.setSeconds(expireAt.getSeconds() + parseInt(config['visit_cookie_lifetime'], 10));
183                setCookie(config['visit_cookie_name'], guid(), expireAt, path);
184            } else {
185                expireAt.setSeconds(expireAt.getSeconds() + parseInt(config['visit_cookie_lifetime'], 10));
186                setCookie(config['visit_cookie_name'], getCookie(config['visit_cookie_name']), expireAt, path);
187            }
188
189            if (getCookie(config['visitor_cookie_name']) === null) {
190                expireAt.setDate(expireAt.getDate() + parseInt(config['visitor_cookie_lifetime'], 10));
191                setCookie(config['visitor_cookie_name'], guid(), expireAt, path);
192            }
193
194            addSessionVar.bind(this)('uid', getCookie(config['visit_cookie_name']));
195            addSessionVar.bind(this)('vid', getCookie(config['visitor_cookie_name']));
196        }
197    }
198
199    // Implementation of the tracker
200    var SmileTrackerImpl = function() {
201        this.vars = {};
202        this.trackerSent = false;
203    };
204
205    SmileTrackerImpl.prototype.sendTag = function () {
206        require(['domReady'], function(domReady) { domReady(sendTag.bind(this)); }.bind(this));
207    }
208
209    SmileTrackerImpl.prototype.setConfig = function (config) {
210        this.config  = config;
211        this.baseUrl = config.beaconUrl;
212    }
213
214    SmileTrackerImpl.prototype.addPageVar = function (varName, value) {
215        addPageVar.bind(this)(varName, value);
216    }
217
218    SmileTrackerImpl.prototype.addSessionVar = function (varName, value) {
219        addSessionVar.bind(this)(varName, value);
220    }
221
222    return new SmileTrackerImpl();
223}());