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Improve href-sanitizer
scriptlet
Support ability to recursively unwrap destination URL. Example: ...##+js(href-sanitizer, a.clickTracker, ?r?u) Related discussion: https://github.com/uBlockOrigin/uBlock-discussions/discussions/775#discussioncomment-10120835
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@ -3503,17 +3503,26 @@ function hrefSanitizer(
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}
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return '';
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};
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const extractParam = (href, source) => {
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if ( Boolean(source) === false ) { return href; }
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const recursive = source.includes('?', 1);
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const end = recursive ? source.indexOf('?', 1) : source.length;
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try {
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const url = new URL(href, document.location);
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const value = url.searchParams.get(source.slice(1, end));
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if ( value === null ) { return href }
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if ( recursive ) { return extractParam(value, source.slice(end)); }
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return value;
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} catch(x) {
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}
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return href;
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};
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const extractText = (elem, source) => {
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if ( /^\[.*\]$/.test(source) ) {
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return elem.getAttribute(source.slice(1,-1).trim()) || '';
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}
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if ( source.startsWith('?') ) {
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try {
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const url = new URL(elem.href, document.location);
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return url.searchParams.get(source.slice(1)) || '';
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} catch(x) {
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}
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return '';
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return extractParam(elem.href, source);
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}
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if ( source === 'text' ) {
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return elem.textContent
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