https://www.farmcollector.com/wp-content/plugins/opi-authentication/assets/js/auth/shopify-multipass.js

1/**
2 * Intercept clicks on configured Shopify store links for logged-in customers
3 * and route them through the Multipass bridge so they arrive signed in.
4 *
5 * Only the first store click in a session goes through Multipass. After that,
6 * opi_shopify_sso is set and clicks go straight to Shopify.
7 */
8(function () {
9    'use strict';
10
11    var config = window.OPI_SHOPIFY_MULTIPASS;
12    if (!config || !config.storeDomain || !config.bridgeUrl) {
13        return;
14    }
15
16    var storeDomain = String(config.storeDomain).toLowerCase().replace(/^www\./, '');
17    var bridgeUrl = config.bridgeUrl;
18    var ssoCookie = config.ssoCookie || 'opi_shopify_sso';
19
20    function hasCookie(name) {
21        return document.cookie.indexOf(name + '=') !== -1;
22    }
23
24    function isLoggedIn() {
25        return hasCookie('opi_is_logged_in');
26    }
27
28    function alreadySsoed() {
29        return hasCookie(ssoCookie);
30    }
31
32    function hostnameMatchesStore(hostname) {
33        if (!hostname) {
34            return false;
35        }
36        var host = String(hostname).toLowerCase().replace(/^www\./, '');
37        return host === storeDomain;
38    }
39
40    function findAnchor(el) {
41        while (el && el !== document) {
42            if (el.tagName && el.tagName.toLowerCase() === 'a' && el.href) {
43                return el;
44            }
45            el = el.parentNode;
46        }
47        return null;
48    }
49
50    function buildBridgeUrl(targetHref) {
51        var sep = bridgeUrl.indexOf('?') === -1 ? '?' : '&';
52        return bridgeUrl + sep + 'return_to=' + encodeURIComponent(targetHref);
53    }
54
55    document.addEventListener('click', function (event) {
56        if (event.defaultPrevented) {
57            return;
58        }
59        if (event.button !== 0) {
60            return;
61        }
62        if (event.metaKey || event.ctrlKey || event.shiftKey || event.altKey) {
63            return;
64        }
65        if (!isLoggedIn()) {
66            return;
67        }
68        // Already Multipass'd this session — let the store link navigate normally.
69        if (alreadySsoed()) {
70            return;
71        }
72
73        var anchor = findAnchor(event.target);
74        if (!anchor || !anchor.href) {
75            return;
76        }
77
78        if (anchor.href.indexOf('/sso/shopify') !== -1) {
79            return;
80        }
81
82        var url;
83        try {
84            url = new URL(anchor.href, window.location.href);
85        } catch (e) {
86            return;
87        }
88
89        if (!hostnameMatchesStore(url.hostname)) {
90            return;
91        }
92
93        event.preventDefault();
94
95        var dest = buildBridgeUrl(url.href);
96        var target = (anchor.getAttribute('target') || '').toLowerCase();
97
98        if (target === '_blank') {
99            window.open(dest, '_blank', 'noopener,noreferrer');
100        } else {
101            window.location.href = dest;
102        }
103    }, true);
104})();