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control
8 months ago
img
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blocker.min.js
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blocker.js
120 lines
| 1 | async function detectAdblock({ timeoutMs = 2500 } = {}) { |
| 2 | // 0) Optional: neutral bait that your CSS won't hide by accident |
| 3 | ensureBait(); |
| 4 | |
| 5 | // 1) Control: should NEVER be blocked |
| 6 | const controlOk = await loadScript(wpdm_url.site+'wp-content/plugins/download-manager/assets/js/control/ping.js', timeoutMs); |
| 7 | |
| 8 | // 2) Decoy: LIKELY to be blocked by ad-block lists |
| 9 | const decoyOk = await loadScript(wpdm_url.site+'wp-content/plugins/download-manager/assets/js/ads/adserver.js', timeoutMs); |
| 10 | |
| 11 | // 3) Bait: if your styles/extensions hide ad-like selectors |
| 12 | const baitHidden = isBaitHidden(); |
| 13 | |
| 14 | // Decide: |
| 15 | // - If control fails, environment is flaky/CSP — don't claim adblock. |
| 16 | // - If control passes AND decoy fails -> likely adblock. |
| 17 | // - BaitHidden is a weak signal, used only to strengthen confidence. |
| 18 | const likelyAdblock = controlOk && !decoyOk; |
| 19 | return { |
| 20 | isAdblock: likelyAdblock || (likelyAdblock && baitHidden), |
| 21 | details: { controlOk, decoyOk, baitHidden } |
| 22 | }; |
| 23 | } |
| 24 | |
| 25 | function loadScript(src, timeoutMs) { |
| 26 | return new Promise((resolve) => { |
| 27 | const s = document.createElement('script'); |
| 28 | s.src = src + (src.includes('?') ? '&' : '?') + 'v=' + Date.now(); |
| 29 | s.async = true; |
| 30 | |
| 31 | let settled = false; |
| 32 | const done = (ok) => { if (!settled) { settled = true; resolve(ok); } }; |
| 33 | |
| 34 | const timer = setTimeout(() => done(false), timeoutMs); |
| 35 | s.onload = () => { clearTimeout(timer); done(true); }; |
| 36 | s.onerror = () => { clearTimeout(timer); done(false); }; |
| 37 | |
| 38 | // If a blocker removes the element outright, we still have the timeout fallback |
| 39 | document.head.appendChild(s); |
| 40 | }); |
| 41 | } |
| 42 | |
| 43 | function ensureBait() { |
| 44 | if (document.getElementById('__ad_bait__')) return; |
| 45 | const bait = document.createElement('div'); |
| 46 | bait.id = '__ad_bait__'; |
| 47 | bait.className = 'ads ad ad-banner adsbox ad-wrapper'; |
| 48 | Object.assign(bait.style, { |
| 49 | position: 'absolute', |
| 50 | left: '-9999px', |
| 51 | top: '-9999px', |
| 52 | width: '1px', |
| 53 | height: '1px', |
| 54 | pointerEvents: 'none' |
| 55 | }); |
| 56 | document.body.appendChild(bait); |
| 57 | } |
| 58 | |
| 59 | function isBaitHidden() { |
| 60 | const el = document.getElementById('__ad_bait__'); |
| 61 | if (!el) return false; |
| 62 | const cs = getComputedStyle(el); |
| 63 | const hidden = |
| 64 | el.offsetParent === null || |
| 65 | cs.display === 'none' || |
| 66 | cs.visibility === 'hidden' || |
| 67 | parseInt(cs.height, 10) === 0 || |
| 68 | parseInt(cs.width, 10) === 0 || |
| 69 | cs.opacity === '0'; |
| 70 | return hidden; |
| 71 | } |
| 72 | |
| 73 | // Example usage: |
| 74 | |
| 75 | jQuery(function($) { |
| 76 | |
| 77 | detectAdblock().then(({ isAdblock, details }) => { |
| 78 | console.log('Adblock?', isAdblock, details); |
| 79 | if (isAdblock) { |
| 80 | const body = $('body'); |
| 81 | |
| 82 | // Remove from existing elements |
| 83 | $('.wpdm-download-link.download-on-click').removeAttr('data-downloadurl'); |
| 84 | |
| 85 | // Handle click on dynamic elements via delegation |
| 86 | body.on('click', '.wpdm-download-link.download-on-click', function (e) { |
| 87 | $(this).removeAttr('data-downloadurl'); |
| 88 | WPDM.bootAlert("Ad blocker detected", abmsg); |
| 89 | return false; |
| 90 | }); |
| 91 | |
| 92 | // MutationObserver to handle dynamically added elements |
| 93 | const observer = new MutationObserver(function(mutations) { |
| 94 | mutations.forEach(function(mutation) { |
| 95 | mutation.addedNodes.forEach(function(node) { |
| 96 | if (node.nodeType === 1) { // Element node |
| 97 | // Check if the added node itself matches |
| 98 | if ($(node).hasClass('wpdm-download-link') && $(node).hasClass('download-on-click')) { |
| 99 | $(node).removeAttr('data-downloadurl'); |
| 100 | } |
| 101 | // Check descendants of the added node |
| 102 | $(node).find('.wpdm-download-link.download-on-click').removeAttr('data-downloadurl'); |
| 103 | } |
| 104 | }); |
| 105 | }); |
| 106 | }); |
| 107 | |
| 108 | observer.observe(document.body, { |
| 109 | childList: true, |
| 110 | subtree: true |
| 111 | }); |
| 112 | |
| 113 | if( abmsgd === "site" || ( abmsgd === "package" && iswpdmpropage )) |
| 114 | WPDM.bootAlert("Ad blocker detected", abmsg) |
| 115 | } |
| 116 | }); |
| 117 | |
| 118 | }); |
| 119 | |
| 120 |