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Diffstat (limited to 'data/extensions/uBlock0@raymondhill.net/js/scriptlets/noscript-spoof.js')
-rw-r--r-- | data/extensions/uBlock0@raymondhill.net/js/scriptlets/noscript-spoof.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/data/extensions/uBlock0@raymondhill.net/js/scriptlets/noscript-spoof.js b/data/extensions/uBlock0@raymondhill.net/js/scriptlets/noscript-spoof.js new file mode 100644 index 0000000..1abf8e0 --- /dev/null +++ b/data/extensions/uBlock0@raymondhill.net/js/scriptlets/noscript-spoof.js @@ -0,0 +1,103 @@ +/******************************************************************************* + + uBlock Origin - a comprehensive, efficient content blocker + Copyright (C) 2014-present Raymond Hill + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see {http://www.gnu.org/licenses/}. + + Home: https://github.com/gorhill/uBlock +*/ + +// Code below has been imported from uMatrix and modified to fit uBO: +// https://github.com/gorhill/uMatrix/blob/3f8794dd899a05e066c24066c6c0a2515d5c60d2/src/js/contentscript.js#L464-L531 + +/******************************************************************************/ + +// https://github.com/gorhill/uMatrix/issues/232 +// Force `display` property, Firefox is still affected by the issue. + +(( ) => { + const noscripts = document.querySelectorAll('noscript'); + if ( noscripts.length === 0 ) { return; } + + const reMetaContent = /^\s*(\d+)\s*;\s*url=(?:"([^"]+)"|'([^']+)'|(.+))/i; + const reSafeURL = /^https?:\/\//; + const reNoscript = /(^|[ >+~])noscript([ >+~]|$)/g; + const className = vAPI.sessionId; + let redirectTimer; + + const autoRefresh = function(root) { + const meta = root.querySelector('meta[http-equiv="refresh"][content]'); + if ( meta === null ) { return; } + const match = reMetaContent.exec(meta.getAttribute('content')); + if ( match === null ) { return; } + const refreshURL = (match[2] || match[3] || match[4] || '').trim(); + let url; + try { + url = new URL(refreshURL, document.baseURI); + } catch { + return; + } + if ( reSafeURL.test(url.href) === false ) { return; } + redirectTimer = setTimeout(( ) => { + location.assign(url.href); + }, parseInt(match[1], 10) * 1000 + 1); + meta.parentNode.removeChild(meta); + }; + + const morphNoscript = function(from) { + const fragment = new DocumentFragment(); + const inHead = from.closest('head'); + if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) { + while ( from.firstChild !== null ) { + fragment.append(from.firstChild); + } + return fragment; + } + const parser = new DOMParser(); + const doc = parser.parseFromString( + `<span class="${className}" style="display: none; !important">${from.textContent}</span>`, + 'text/html' + ); + for ( const elem of doc.querySelectorAll(inHead ? 'span > *' : 'span') ) { + fragment.append(document.adoptNode(elem)); + } + return fragment; + }; + + for ( const noscript of noscripts ) { + const fragment = morphNoscript(noscript); + if ( redirectTimer === undefined ) { + autoRefresh(fragment); + } + noscript.replaceWith(fragment); + } + + for ( const sheet of document.styleSheets ) { + try { + for ( const rule of sheet.cssRules ) { + if ( reNoscript.test(rule.selectorText) === false ) { continue; } + rule.selectorText = + rule.selectorText.replace(reNoscript, `$1span.${className}$2`); + } + } catch { + } + } + + for ( const span of document.querySelectorAll(`.${className}`) ) { + span.style.setProperty('display', 'inline', 'important'); + } +})(); + +/******************************************************************************/ |