https://www.newsfilter.gr/wp-content/plugins/source-medium-tracker…/js/smt-cf7-tracking.js?ver=3.1

1(function() {
2	'use strict';
3
4	// Function to parse URL query parameters
5	function getQueryParams() {
6		var params = {};
7		var qs = window.location.search.substring(1);
8		if (!qs) {
9			return params;
10		}
11		var pairs = qs.split('&');
12		for (var i = 0; i < pairs.length; i++) {
13			var pair = pairs[i].split('=');
14			if (pair[0]) {
15				params[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1] || '');
16			}
17		}
18		return params;
19	}
20
21	// Function to classify referrer
22	function classifyReferrer(referrer) {
23		var source = '';
24		var medium = '';
25
26		if (!referrer || referrer === '') {
27			source = '(direct)';
28			medium = '(none)';
29		} else {
30			var refUrl;
31			try {
32				refUrl = new URL(referrer);
33			} catch (e) {
34				source = '(direct)';
35				medium = '(none)';
36				return { source: source, medium: medium };
37			}
38			
39			var refDomain = refUrl.hostname.replace('www.', '').toLowerCase();
40
41			var searchEngines = ['google.com', 'bing.com', 'yahoo.com', 'baidu.com', 'duckduckgo.com', 'yandex.ru', 'ask.com', 'aol.com'];
42			var socialMedia = ['facebook.com', 'twitter.com', 'linkedin.com', 'instagram.com', 'pinterest.com', 't.co', 'reddit.com', 'tumblr.com', 'youtube.com', 'snapchat.com', 'tiktok.com', 'whatsapp.com', 'wechat.com', 'messenger.com'];
43			var emailProviders = ['mail.google.com', 'outlook.live.com', 'mail.yahoo.com', 'mail.aol.com', 'mail.ru', 'protonmail.com', 'icloud.com', 'mail.yandex.com', 'gmx.com', 'zoho.com', 'com.google.android.gm'];
44
45			function matchesDomainList(refDomain, domainList) {
46				for (var i = 0; i < domainList.length; i++) {
47					if (refDomain === domainList[i] || refDomain.endsWith('.' + domainList[i])) {
48						return domainList[i];
49					}
50				}
51				return null;
52			}
53
54			var matchedDomain = matchesDomainList(refDomain, searchEngines);
55			if (matchedDomain) {
56				source = matchedDomain;
57				medium = 'organic';
58			} else {
59				matchedDomain = matchesDomainList(refDomain, socialMedia);
60				if (matchedDomain) {
61					source = matchedDomain;
62					medium = 'social';
63				} else {
64					matchedDomain = matchesDomainList(refDomain, emailProviders);
65					if (matchedDomain) {
66						source = matchedDomain === 'com.google.android.gm' ? 'Gmail (App)' : '(email)';
67						medium = 'email';
68					} else {
69						source = refDomain;
70						medium = 'referral';
71					}
72				}
73			}
74		}
75
76		return { source: source, medium: medium };
77	}
78
79	// Function to get cookie by name
80	function getCookie(name) {
81		var nameEQ = name + "=";
82		var ca = document.cookie.split(';');
83		for(var i = 0; i < ca.length; i++) {
84			var c = ca[i];
85			while (c.charAt(0) === ' ') c = c.substring(1, c.length);
86			if (c.indexOf(nameEQ) === 0) return decodeURIComponent(c.substring(nameEQ.length, c.length));
87		}
88		return null;
89	}
90
91	// Function to set cookie
92	function setCookie(name, value, days) {
93		var expires = "";
94		if (days) {
95			var date = new Date();
96			date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
97			expires = "; expires=" + date.toUTCString();
98		}
99		document.cookie = name + "=" + encodeURIComponent(value || '') + expires + "; path=/";
100	}
101	
102	function getCurrentDomain() {
103		return window.location.hostname.replace('www.', '').toLowerCase();
104	}
105
106	// Function to determine full UTM parameters
107	function getAttributionData() {
108		var params = getQueryParams();
109		var source = '';
110		var medium = '';
111		var campaign = params['utm_campaign'] || '';
112		var content  = params['utm_content'] || '';
113		var term     = params['utm_term'] || '';
114
115		// 1. Check for explicit UTM parameters
116		if (params['utm_source'] || params['utm_medium']) {
117			source = params['utm_source'] || '(not set)';
118			medium = params['utm_medium'] || '(not set)';
119		}
120		// 2. Check for Google Ads gclid parameter
121		else if (params['gclid']) {
122			source = 'google';
123			medium = 'cpc (Paid Google)';
124		}
125		// 3. Check for Facebook Ads fbclid parameter
126		else if (params['fbclid']) {
127			source = 'facebook.com';
128			medium = 'paid social';
129		}
130		// 4. Fallback to Referrer classification
131		else {
132			var referrer = document.referrer;
133			var refInfo = classifyReferrer(referrer);
134			source = refInfo.source;
135			medium = refInfo.medium;
136
137			if (medium === 'social' && params['utm_medium']) {
138				if (params['utm_medium'] === 'paid social' || params['utm_medium'] === 'cpc') {
139					medium = 'paid social';
140				}
141			}
142		}
143
144		return {
145			source: source,
146			medium: medium,
147			campaign: campaign,
148			content: content,
149			term: term
150		};
151	}
152
153	// Read existing attribution cookies
154	var source      = getCookie('session_source');
155	var medium      = getCookie('session_medium');
156	var campaign    = getCookie('session_campaign');
157	var content     = getCookie('session_content');
158	var term        = getCookie('session_term');
159	var landingPage = getCookie('session_landing_page');
160
161	var currentDomain = getCurrentDomain();
162	var params = getQueryParams();
163
164	// Check if new UTM params exist in URL or if cookies are missing/expired
165	var hasNewUtms = params['utm_source'] || params['utm_medium'] || params['gclid'] || params['fbclid'] || params['utm_campaign'];
166
167	if (!source || !medium || source === currentDomain || hasNewUtms) {
168		var attrData = getAttributionData();
169		source      = attrData.source;
170		medium      = attrData.medium;
171		campaign    = attrData.campaign;
172		content     = attrData.content;
173		term        = attrData.term;
174		landingPage = window.location.href;
175
176		// Store in cookies with 2-day expiration
177		setCookie('session_source', source, 2);
178		setCookie('session_medium', medium, 2);
179		setCookie('session_campaign', campaign, 2);
180		setCookie('session_content', content, 2);
181		setCookie('session_term', term, 2);
182		setCookie('session_landing_page', landingPage, 2);
183	}
184
185	if (!landingPage) {
186		landingPage = window.location.href;
187		setCookie('session_landing_page', landingPage, 2);
188	}
189
190	// Populate hidden form fields when DOM is ready
191	document.addEventListener('DOMContentLoaded', function() {
192		var forms = document.querySelectorAll('.wpcf7-form');
193

194		forms.forEach(function(form) {
195			var fields = {
196				'source': source,
197				'medium': medium,
198				'campaign': campaign,
199				'content': content,
200				'term': term,
201				'landing_page': landingPage
202			};
203
204			for (var fieldName in fields) {
205				var input = form.querySelector('input[name="' + fieldName + '"]');
206				if (input) {
207					input.value = fields[fieldName] || '';
208				}
209			}
210		});
211	});
212})();