https://polarbreeze.at/js/aff.js

1(function () {
2	function getCookie(key, defaultValue = null) {
3		const cookies = document.cookie.split('; ').reduce((acc, cookie) => {
4			const [cookieKey, cookieValue] = cookie.split('=');
5			acc[decodeURIComponent(cookieKey)] = decodeURIComponent(cookieValue);
6			return acc;
7		}, {});
8
9		return cookies.hasOwnProperty(key) ? cookies[key] : defaultValue;
10	}
11
12	function setCookie(key, value, expirationInSeconds, path = '/') {
13		const expires = new Date(Date.now() + expirationInSeconds * 1000).toUTCString();
14		document.cookie = `${encodeURIComponent(key)}=${encodeURIComponent(value)}; expires=${expires}; path=${path}`;
15	}
16
17	function clearCookie(key, path = '/') {
18		document.cookie = `${encodeURIComponent(key)}=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=${path}`;
19	}
20
21	function hasValidAffiliateOverwrite(value) {
22		return value != null && value !== '' && value !== 'undefined' && value !== 'null';
23	}
24
25	function encodeAffiliateParams(affiliate, entryUrl, affiliateOverwrite, affiliateSource) {
26		return {
27			aff: window.btoa(affiliate),
28			entryUrl: window.btoa(entryUrl),
29			affiliateOverwrite: hasValidAffiliateOverwrite(affiliateOverwrite) ? window.btoa(affiliateOverwrite) : null,
30			affSource: affiliateSource != null && affiliateSource !== '' ? window.btoa(affiliateSource) : null,
31		};
32	}
33
34	function isValidUrl(url) {
35		return (
36			typeof url === 'string' &&
37			url.includes(location.hostname) &&
38			!url.includes('legal') &&
39			!url.includes('wp-login') &&
40			!url.includes('wp-admin')
41		);
42	}
43
44	function appendAffiliateParams(url, { aff, entryUrl, affiliateOverwrite, affSource }) {
45		const originalUrl = url;
46		const parsedUrl = new URL(url, location.origin);
47		const isRelativeUrl = !/^[a-zA-Z][a-zA-Z\d+\-.]*:/.test(originalUrl);
48
49		if (!parsedUrl.searchParams.has('aff')) {
50			parsedUrl.searchParams.set('aff', aff);
51		}
52
53		if (!parsedUrl.searchParams.has('entryUrl')) {
54			parsedUrl.searchParams.set('entryUrl', entryUrl);
55		}
56
57		if (!parsedUrl.searchParams.has('affOverwrite') && hasValidAffiliateOverwrite(affiliateOverwrite)) {
58			parsedUrl.searchParams.set('affOverwrite', affiliateOverwrite);
59		} else if (!parsedUrl.searchParams.has('affOverwrite')) {
60			parsedUrl.searchParams.delete('affOverwrite');
61		}
62
63		if (affSource != null && affSource !== '' && !parsedUrl.searchParams.has('affSource')) {
64			parsedUrl.searchParams.set('affSource', affSource);
65		}
66
67		if (isRelativeUrl) {
68			return `${parsedUrl.pathname}${parsedUrl.search}${parsedUrl.hash}`;
69		}
70
71		return parsedUrl.toString();
72	}
73
74	function addAffiliateParamToLinks() {
75		if (!window.affiliate) return;
76
77		const links = [...document.getElementsByTagName('a')];
78		const encodedAffiliate = encodeAffiliateParams(
79			window.affiliate,
80			window.entry_url,
81			window.affiliateOverwrite,
82			window.affiliateSource
83		);
84
85		links.forEach((link) => {
86			let url = link.getAttribute('href')?.trim();
87
88			if (!isValidUrl(url)) return;
89
90			link.setAttribute('href', appendAffiliateParams(url, encodedAffiliate));
91		});
92	}
93
94	function decodeQueryParam(param) {
95		const value = new URLSearchParams(location.search).get(param);
96
97		if (!value) {
98			return null;
99		}
100
101		let decoded = value;
102		try {
103			decoded = window.atob(decodeURIComponent(value));
104		} catch (e) {
105			return null; // not base64
106		}
107
108		try {
109			return decodeURIComponent(decoded);
110		} catch (e) {
111			return decoded;
112		}
113	}
114
115	function initEntryUrl() {
116		const entryUrlFromCookie = getCookie('entrypoint_url');

117		const entryUrlFromParams = decodeQueryParam('entryUrl');
118
119		window.entry_url = entryUrlFromCookie || entryUrlFromParams || location.pathname;
120
121		if (!entryUrlFromCookie) {
122			setCookie('entrypoint_url', window.entry_url, 60 * 25); // 25 minutes
123		}
124	}
125
126	function initAffiliateTag() {
127		const { direct, productPack } = info;
128
129		const currentAffCookie = getCookie('affiliate_tag');
130		const affFromParams = decodeQueryParam('aff');
131		const affiliateOverwrite = decodeQueryParam('affOverwrite') ?? null;
132		window.affiliate = productPack || affFromParams || currentAffCookie || direct;
133
134		if (productPack !== affFromParams && !affiliateOverwrite) {
135			window.affiliateOverwrite = affFromParams;
136			setCookie('affiliate_overwrite', window.affiliateOverwrite, 86400 * 30);
137		}
138
139		if (affiliateOverwrite !== null) {
140			window.affiliateOverwrite = affiliateOverwrite;
141			setCookie('affiliate_overwrite', window.affiliateOverwrite, 86400 * 30);
142		}
143
144		setCookie('affiliate_tag', window.affiliate, 86400 * 30); // 30 days
145
146		const affSourceFromParams = decodeQueryParam('affSource');
147		if (affSourceFromParams) {
148			window.affiliateSource = affSourceFromParams;
149			setCookie('affiliate_source', window.affiliateSource, 86400 * 30);
150		} else {
151			window.affiliateSource = '';
152			clearCookie('affiliate_source');
153		}
154	}
155
156	function runAffiliateTagging() {
157		initEntryUrl();
158		initAffiliateTag();
159		addAffiliateParamToLinks();
160	}
161
162	if (!window.deferAffiliateAutoRun) {
163		if (document.readyState === 'complete' || document.readyState === 'interactive') {
164			runAffiliateTagging();
165		} else {
166			document.addEventListener('DOMContentLoaded', runAffiliateTagging);
167		}
168	}
169
170	window.runAffiliateTagging = runAffiliateTagging;
171})();