https://www.assistant-cap.com/assets/js/sessionCookie.js

1function crumbleCookie(a) {
2  for (var d = document.cookie.split(";"), c = {}, b = 0; b < d.length; b++) {
3    var e = d[b].substring(0, d[b].indexOf("=")).trim(),
4      i = d[b].substring(d[b].indexOf("=") + 1, d[b].length).trim();
5    c[e] = i
6  }
7  if (a) return c[a] ? c[a] : null;
8  return c
9}
10
11function bakeCookie(a, d, c, b, e, i) {
12  var j = new Date;
13  j.setTime(j.getTime());
14  c && (c *= 864E5);
15  j = new Date(j.getTime() + c);
16  document.cookie = a + "=" + escape(d) + (c ? ";expires=" + j.toGMTString() : "") + (b ? ";path=" + b : "") + (e ? ";domain=" + e : "") + (i ? ";secure" : "")
17}
18
19function writeLogic(n) {
20  var a = getTrafficSource(n, '.example.com');  //Insert your domain here
21
22  a = a.replace(/\|{2,}/g, "|");
23  a = a.replace(/^\|/, "");
24  a = unescape(a);
25  bakeCookie(n, a, 182, "/", "", "")		//Cookie expiration sets to 182 days
26};
27
28function getParam(s, q) {
29  try {
30    var match = s.match('[?&]' + q + '=([^&]+)');
31    return match ? match[1] : '';
32    //        return s.match(RegExp('(^|&)'+q+'=([^&]*)'))[2];
33  } catch (e) {
34    return '';
35  }
36}
37
38function calculateTrafficSource() {
39  var source = '', medium = '', campaign = '', term = '', content = '';
40  var search_engines = [['bing', 'q'], ['google', 'q'], ['yahoo', 'q'], ['baidu', 'q'], ['yandex', 'q'], ['ask', 'q']];	//List of search engines
41  var ref = document.referrer;
42  ref = ref.substr(ref.indexOf('//') + 2);
43  ref_domain = ref;
44  ref_path = '/';
45  ref_search = '';
46
47  // Checks for campaign parameters
48  var url_search = document.location.search;
49
50  //      console.log(url_search.indexOf('utm_source'));
51  //      console.log(getParam(url_search, 'gclid'));
52  //      console.log(url_search);
53
54  if (url_search.indexOf('utm_source') > -1) {
55    source = getParam(url_search, 'utm_source');
56    medium = getParam(url_search, 'utm_medium');
57    campaign = getParam(url_search, 'utm_campaign');
58    term = getParam(url_search, 'utm_term');
59    content = getParam(url_search, 'utm_content');
60  }
61  else if (getParam(url_search, 'gclid')) {
62    source = 'google';
63    medium = 'cpc';
64    campaign = '(not set)';
65  }
66  else if (ref) {
67
68    // separate domain, path and query parameters
69    if (ref.indexOf('/') > -1) {
70      ref_domain = ref.substr(0, ref.indexOf('/'));
71      ref_path = ref.substr(ref.indexOf('/'));
72      if (ref_path.indexOf('?') > -1) {
73        ref_search = ref_path.substr(ref_path.indexOf('?') + 1);
74        ref_path = ref_path.substr(0, ref_path.indexOf('?'));
75      }
76    }
77    medium = 'referral';
78    source = ref_domain;
79    // Extract term for organic source
80    for (var i = 0; i < search_engines.length; i++) {
81      if (ref_domain.indexOf(search_engines[i][0]) > -1) {
82        medium = 'organic';
83        source = search_engines[i][0];
84        term = getParam(ref_search, search_engines[i][1]) || '(not provided)';
85        break;
86      }
87    }
88  }
89
90  return {
91    'source': source,
92    'medium': medium,
93    'campaign': campaign,
94    'term': term,
95    'content': content
96  };
97}
98
99function getTrafficSource(cookieName, hostname) {
100  var trafficSources = calculateTrafficSource();
101  var source = trafficSources.source.length === 0 ? 'direct' : trafficSources.source;
102  var medium = trafficSources.medium.length === 0 ? 'none' : trafficSources.medium;
103  var campaign = trafficSources.campaign.length === 0 ? 'direct' : trafficSources.campaign;
104  var height = window.screen.availHeight;
105  var width = window.screen.availWidth
106  // exception
107  if (medium === 'referral') {
108    campaign = '';
109  }
110  var rightNow = new Date();
111  var value = 'source=' + source +
112    '&medium=' + medium +
113    '&campaign=' + campaign +
114    '&term=' + trafficSources.term +
115    '&content=' + trafficSources.content +
116    '&date=' + rightNow.toISOString().slice(0, 10).replace(/-/g, "") +
117    '&language=' + navigator.language +
118    '&url=' + window.location.href +
119    '&title=' + document.title +
120    '&pathName=' + window.location.pathname +
121    '&resolution=' + `${width}x${height}`;
122
123  return value;
124}
125
126// Self-invoking function
127(function () {
128  var date = new Date();
129  var fr_date = date.getUTCFullYear().toString() + ((date.getUTCMonth() < 9) ? '0' + (date.getUTCMonth() + 1).toString() : (d

129ate.getUTCMonth() + 1).toString()) + ((date.getUTCDate() < 10) ? '0' + date.getUTCDate().toString() : date.getUTCDate().toString());
130  var session = crumbleCookie()['FirstSession'];
131
132  // if (typeof session == 'undefined')	// First time session
133  // {
134    writeLogic('FirstSession');
135  // }
136  // else {
137  //   writeLogic('ReturningSession');
138  // }
139})();