diff options
Diffstat (limited to 'js/contentscript.js')
| -rw-r--r-- | js/contentscript.js | 902 |
1 files changed, 451 insertions, 451 deletions
diff --git a/js/contentscript.js b/js/contentscript.js index a4595cb..650d1be 100644 --- a/js/contentscript.js +++ b/js/contentscript.js @@ -32,511 +32,511 @@ (function() { -/******************************************************************************/ + /******************************************************************************/ -// https://github.com/chrisaljoudi/uBlock/issues/464 -// https://github.com/gorhill/uMatrix/issues/621 -if ( - document instanceof HTMLDocument === false && - document instanceof XMLDocument === false -) { - return; -} - -// This can also happen (for example if script injected into a `data:` URI doc) -if ( !window.location ) { - return; -} - -// This can happen -if ( typeof vAPI !== 'object' ) { - //console.debug('contentscript.js > vAPI not found'); - return; -} - -// https://github.com/chrisaljoudi/uBlock/issues/456 -// Already injected? -if ( vAPI.contentscriptEndInjected ) { - //console.debug('contentscript.js > content script already injected'); - return; -} -vAPI.contentscriptEndInjected = true; + // https://github.com/chrisaljoudi/uBlock/issues/464 + // https://github.com/gorhill/uMatrix/issues/621 + if ( + document instanceof HTMLDocument === false && + document instanceof XMLDocument === false + ) { + return; + } -/******************************************************************************/ -/******************************************************************************/ + // This can also happen (for example if script injected into a `data:` URI doc) + if ( !window.location ) { + return; + } -// Executed only once. + // This can happen + if ( typeof vAPI !== 'object' ) { + //console.debug('contentscript.js > vAPI not found'); + return; + } -(function() { - var localStorageHandler = function(mustRemove) { - if ( mustRemove ) { - window.localStorage.clear(); - window.sessionStorage.clear(); - } - }; - - // Check with extension whether local storage must be emptied - // rhill 2014-03-28: we need an exception handler in case 3rd-party access - // to site data is disabled. - // https://github.com/gorhill/httpswitchboard/issues/215 - try { - var hasLocalStorage = - window.localStorage && window.localStorage.length !== 0; - var hasSessionStorage = - window.sessionStorage && window.sessionStorage.length !== 0; - if ( hasLocalStorage || hasSessionStorage ) { - vAPI.messaging.send('contentscript.js', { - what: 'contentScriptHasLocalStorage', - originURL: window.location.origin - }, localStorageHandler); - } + // https://github.com/chrisaljoudi/uBlock/issues/456 + // Already injected? + if ( vAPI.contentscriptEndInjected ) { + //console.debug('contentscript.js > content script already injected'); + return; + } + vAPI.contentscriptEndInjected = true; + + /******************************************************************************/ + /******************************************************************************/ + + // Executed only once. + + (function() { + var localStorageHandler = function(mustRemove) { + if ( mustRemove ) { + window.localStorage.clear(); + window.sessionStorage.clear(); + } + }; + + // Check with extension whether local storage must be emptied + // rhill 2014-03-28: we need an exception handler in case 3rd-party access + // to site data is disabled. + // https://github.com/gorhill/httpswitchboard/issues/215 + try { + var hasLocalStorage = + window.localStorage && window.localStorage.length !== 0; + var hasSessionStorage = + window.sessionStorage && window.sessionStorage.length !== 0; + if ( hasLocalStorage || hasSessionStorage ) { + vAPI.messaging.send('contentscript.js', { + what: 'contentScriptHasLocalStorage', + originURL: window.location.origin + }, localStorageHandler); + } - // TODO: indexedDB - //if ( window.indexedDB && !!window.indexedDB.webkitGetDatabaseNames ) { + // TODO: indexedDB + //if ( window.indexedDB && !!window.indexedDB.webkitGetDatabaseNames ) { // var db = window.indexedDB.webkitGetDatabaseNames().onsuccess = function(sender) { // console.debug('webkitGetDatabaseNames(): result=%o', sender.target.result); // }; - //} + //} - // TODO: Web SQL - // if ( window.openDatabase ) { + // TODO: Web SQL + // if ( window.openDatabase ) { // Sad: // "There is no way to enumerate or delete the databases available for an origin from this API." // Ref.: http://www.w3.org/TR/webdatabase/#databases - // } - } - catch (e) { - } -})(); - -/******************************************************************************/ -/******************************************************************************/ - -// https://github.com/gorhill/uMatrix/issues/45 - -var collapser = (function() { - var resquestIdGenerator = 1, - processTimer, - toProcess = [], - toFilter = [], - toCollapse = new Map(), - cachedBlockedMap, - cachedBlockedMapHash, - cachedBlockedMapTimer, - reURLPlaceholder = /\{\{url\}\}/g; - var src1stProps = { - 'embed': 'src', - 'iframe': 'src', - 'img': 'src', - 'object': 'data' - }; - var src2ndProps = { - 'img': 'srcset' - }; - var tagToTypeMap = { - embed: 'media', - iframe: 'frame', - img: 'image', - object: 'media' - }; - var cachedBlockedSetClear = function() { - cachedBlockedMap = - cachedBlockedMapHash = - cachedBlockedMapTimer = undefined; - }; - - // https://github.com/chrisaljoudi/uBlock/issues/174 - // Do not remove fragment from src URL - var onProcessed = function(response) { - if ( !response ) { // This happens if uBO is disabled or restarted. - toCollapse.clear(); - return; + // } } + catch (e) { + } + })(); + + /******************************************************************************/ + /******************************************************************************/ + + // https://github.com/gorhill/uMatrix/issues/45 + + var collapser = (function() { + var resquestIdGenerator = 1, + processTimer, + toProcess = [], + toFilter = [], + toCollapse = new Map(), + cachedBlockedMap, + cachedBlockedMapHash, + cachedBlockedMapTimer, + reURLPlaceholder = /\{\{url\}\}/g; + var src1stProps = { + 'embed': 'src', + 'iframe': 'src', + 'img': 'src', + 'object': 'data' + }; + var src2ndProps = { + 'img': 'srcset' + }; + var tagToTypeMap = { + embed: 'media', + iframe: 'frame', + img: 'image', + object: 'media' + }; + var cachedBlockedSetClear = function() { + cachedBlockedMap = + cachedBlockedMapHash = + cachedBlockedMapTimer = undefined; + }; - var targets = toCollapse.get(response.id); - if ( targets === undefined ) { return; } - toCollapse.delete(response.id); - if ( cachedBlockedMapHash !== response.hash ) { - cachedBlockedMap = new Map(response.blockedResources); - cachedBlockedMapHash = response.hash; - if ( cachedBlockedMapTimer !== undefined ) { - clearTimeout(cachedBlockedMapTimer); + // https://github.com/chrisaljoudi/uBlock/issues/174 + // Do not remove fragment from src URL + var onProcessed = function(response) { + if ( !response ) { // This happens if uBO is disabled or restarted. + toCollapse.clear(); + return; + } + + var targets = toCollapse.get(response.id); + if ( targets === undefined ) { return; } + toCollapse.delete(response.id); + if ( cachedBlockedMapHash !== response.hash ) { + cachedBlockedMap = new Map(response.blockedResources); + cachedBlockedMapHash = response.hash; + if ( cachedBlockedMapTimer !== undefined ) { + clearTimeout(cachedBlockedMapTimer); + } + cachedBlockedMapTimer = vAPI.setTimeout(cachedBlockedSetClear, 30000); + } + if ( cachedBlockedMap === undefined || cachedBlockedMap.size === 0 ) { + return; } - cachedBlockedMapTimer = vAPI.setTimeout(cachedBlockedSetClear, 30000); - } - if ( cachedBlockedMap === undefined || cachedBlockedMap.size === 0 ) { - return; - } - var placeholders = response.placeholders, - tag, prop, src, collapsed, docurl, replaced; + var placeholders = response.placeholders, + tag, prop, src, collapsed, docurl, replaced; - for ( var target of targets ) { - tag = target.localName; - prop = src1stProps[tag]; - if ( prop === undefined ) { continue; } - src = target[prop]; - if ( typeof src !== 'string' || src.length === 0 ) { - prop = src2ndProps[tag]; + for ( var target of targets ) { + tag = target.localName; + prop = src1stProps[tag]; if ( prop === undefined ) { continue; } src = target[prop]; - if ( typeof src !== 'string' || src.length === 0 ) { continue; } - } - collapsed = cachedBlockedMap.get(tagToTypeMap[tag] + ' ' + src); - if ( collapsed === undefined ) { continue; } - if ( collapsed ) { - target.style.setProperty('display', 'none', 'important'); - target.hidden = true; - continue; - } - switch ( tag ) { - case 'iframe': - if ( placeholders.frame !== true ) { break; } - docurl = - 'data:text/html,' + - encodeURIComponent( - placeholders.frameDocument.replace( - reURLPlaceholder, - src - ) - ); - replaced = false; - // Using contentWindow.location prevent tainting browser - // history -- i.e. breaking back button (seen on Chromium). - if ( target.contentWindow ) { - try { - target.contentWindow.location.replace(docurl); - replaced = true; - } catch(ex) { + if ( typeof src !== 'string' || src.length === 0 ) { + prop = src2ndProps[tag]; + if ( prop === undefined ) { continue; } + src = target[prop]; + if ( typeof src !== 'string' || src.length === 0 ) { continue; } + } + collapsed = cachedBlockedMap.get(tagToTypeMap[tag] + ' ' + src); + if ( collapsed === undefined ) { continue; } + if ( collapsed ) { + target.style.setProperty('display', 'none', 'important'); + target.hidden = true; + continue; + } + switch ( tag ) { + case 'iframe': + if ( placeholders.frame !== true ) { break; } + docurl = + 'data:text/html,' + + encodeURIComponent( + placeholders.frameDocument.replace( + reURLPlaceholder, + src + ) + ); + replaced = false; + // Using contentWindow.location prevent tainting browser + // history -- i.e. breaking back button (seen on Chromium). + if ( target.contentWindow ) { + try { + target.contentWindow.location.replace(docurl); + replaced = true; + } catch(ex) { + } } + if ( !replaced ) { + target.setAttribute('src', docurl); + } + break; + case 'img': + if ( placeholders.image !== true ) { break; } + target.style.setProperty('display', 'inline-block'); + target.style.setProperty('min-width', '20px', 'important'); + target.style.setProperty('min-height', '20px', 'important'); + target.style.setProperty( + 'border', + placeholders.imageBorder, + 'important' + ); + target.style.setProperty( + 'background', + placeholders.imageBackground, + 'important' + ); + break; } - if ( !replaced ) { - target.setAttribute('src', docurl); + } + }; + + var send = function() { + processTimer = undefined; + toCollapse.set(resquestIdGenerator, toProcess); + var msg = { + what: 'lookupBlockedCollapsibles', + id: resquestIdGenerator, + toFilter: toFilter, + hash: cachedBlockedMapHash + }; + vAPI.messaging.send('contentscript.js', msg, onProcessed); + toProcess = []; + toFilter = []; + resquestIdGenerator += 1; + }; + + var process = function(delay) { + if ( toProcess.length === 0 ) { return; } + if ( delay === 0 ) { + if ( processTimer !== undefined ) { + clearTimeout(processTimer); } - break; - case 'img': - if ( placeholders.image !== true ) { break; } - target.style.setProperty('display', 'inline-block'); - target.style.setProperty('min-width', '20px', 'important'); - target.style.setProperty('min-height', '20px', 'important'); - target.style.setProperty( - 'border', - placeholders.imageBorder, - 'important' - ); - target.style.setProperty( - 'background', - placeholders.imageBackground, - 'important' - ); - break; + send(); + } else if ( processTimer === undefined ) { + processTimer = vAPI.setTimeout(send, delay || 47); } - } - }; - - var send = function() { - processTimer = undefined; - toCollapse.set(resquestIdGenerator, toProcess); - var msg = { - what: 'lookupBlockedCollapsibles', - id: resquestIdGenerator, - toFilter: toFilter, - hash: cachedBlockedMapHash }; - vAPI.messaging.send('contentscript.js', msg, onProcessed); - toProcess = []; - toFilter = []; - resquestIdGenerator += 1; - }; - - var process = function(delay) { - if ( toProcess.length === 0 ) { return; } - if ( delay === 0 ) { - if ( processTimer !== undefined ) { - clearTimeout(processTimer); + + var add = function(target) { + toProcess.push(target); + }; + + var addMany = function(targets) { + var i = targets.length; + while ( i-- ) { + toProcess.push(targets[i]); } - send(); - } else if ( processTimer === undefined ) { - processTimer = vAPI.setTimeout(send, delay || 47); - } - }; + }; - var add = function(target) { - toProcess.push(target); - }; + var iframeSourceModified = function(mutations) { + var i = mutations.length; + while ( i-- ) { + addIFrame(mutations[i].target, true); + } + process(); + }; + var iframeSourceObserver; + var iframeSourceObserverOptions = { + attributes: true, + attributeFilter: [ 'src' ] + }; - var addMany = function(targets) { - var i = targets.length; - while ( i-- ) { - toProcess.push(targets[i]); - } - }; + var addIFrame = function(iframe, dontObserve) { + // https://github.com/gorhill/uBlock/issues/162 + // Be prepared to deal with possible change of src attribute. + if ( dontObserve !== true ) { + if ( iframeSourceObserver === undefined ) { + iframeSourceObserver = new MutationObserver(iframeSourceModified); + } + iframeSourceObserver.observe(iframe, iframeSourceObserverOptions); + } + var src = iframe.src; + if ( src === '' || typeof src !== 'string' ) { return; } + if ( src.startsWith('http') === false ) { return; } + toFilter.push({ type: 'frame', url: iframe.src }); + add(iframe); + }; - var iframeSourceModified = function(mutations) { - var i = mutations.length; - while ( i-- ) { - addIFrame(mutations[i].target, true); - } - process(); - }; - var iframeSourceObserver; - var iframeSourceObserverOptions = { - attributes: true, - attributeFilter: [ 'src' ] - }; - - var addIFrame = function(iframe, dontObserve) { - // https://github.com/gorhill/uBlock/issues/162 - // Be prepared to deal with possible change of src attribute. - if ( dontObserve !== true ) { - if ( iframeSourceObserver === undefined ) { - iframeSourceObserver = new MutationObserver(iframeSourceModified); + var addIFrames = function(iframes) { + var i = iframes.length; + while ( i-- ) { + addIFrame(iframes[i]); } - iframeSourceObserver.observe(iframe, iframeSourceObserverOptions); - } - var src = iframe.src; - if ( src === '' || typeof src !== 'string' ) { return; } - if ( src.startsWith('http') === false ) { return; } - toFilter.push({ type: 'frame', url: iframe.src }); - add(iframe); - }; - - var addIFrames = function(iframes) { - var i = iframes.length; - while ( i-- ) { - addIFrame(iframes[i]); - } - }; - - var addNodeList = function(nodeList) { - var node, - i = nodeList.length; - while ( i-- ) { - node = nodeList[i]; - if ( node.nodeType !== 1 ) { continue; } - if ( node.localName === 'iframe' ) { - addIFrame(node); + }; + + var addNodeList = function(nodeList) { + var node, + i = nodeList.length; + while ( i-- ) { + node = nodeList[i]; + if ( node.nodeType !== 1 ) { continue; } + if ( node.localName === 'iframe' ) { + addIFrame(node); + } + if ( node.childElementCount !== 0 ) { + addIFrames(node.querySelectorAll('iframe')); + } + } + }; + + var onResourceFailed = function(ev) { + if ( tagToTypeMap[ev.target.localName] !== undefined ) { + add(ev.target); + process(); } - if ( node.childElementCount !== 0 ) { - addIFrames(node.querySelectorAll('iframe')); + }; + document.addEventListener('error', onResourceFailed, true); + + vAPI.shutdown.add(function() { + document.removeEventListener('error', onResourceFailed, true); + if ( iframeSourceObserver !== undefined ) { + iframeSourceObserver.disconnect(); + iframeSourceObserver = undefined; } - } - }; + if ( processTimer !== undefined ) { + clearTimeout(processTimer); + processTimer = undefined; + } + }); - var onResourceFailed = function(ev) { - if ( tagToTypeMap[ev.target.localName] !== undefined ) { - add(ev.target); - process(); - } - }; - document.addEventListener('error', onResourceFailed, true); - - vAPI.shutdown.add(function() { - document.removeEventListener('error', onResourceFailed, true); - if ( iframeSourceObserver !== undefined ) { - iframeSourceObserver.disconnect(); - iframeSourceObserver = undefined; - } - if ( processTimer !== undefined ) { - clearTimeout(processTimer); - processTimer = undefined; - } - }); - - return { - addMany: addMany, - addIFrames: addIFrames, - addNodeList: addNodeList, - process: process - }; -})(); + return { + addMany: addMany, + addIFrames: addIFrames, + addNodeList: addNodeList, + process: process + }; + })(); -/******************************************************************************/ -/******************************************************************************/ + /******************************************************************************/ + /******************************************************************************/ -// Observe changes in the DOM + // Observe changes in the DOM -// Added node lists will be cumulated here before being processed + // Added node lists will be cumulated here before being processed -(function() { - // This fixes http://acid3.acidtests.org/ - if ( !document.body ) { return; } + (function() { + // This fixes http://acid3.acidtests.org/ + if ( !document.body ) { return; } - var addedNodeLists = []; - var addedNodeListsTimer; + var addedNodeLists = []; + var addedNodeListsTimer; - var treeMutationObservedHandler = function() { - addedNodeListsTimer = undefined; - var i = addedNodeLists.length; - while ( i-- ) { - collapser.addNodeList(addedNodeLists[i]); - } - collapser.process(); - addedNodeLists = []; - }; - - // https://github.com/gorhill/uBlock/issues/205 - // Do not handle added node directly from within mutation observer. - var treeMutationObservedHandlerAsync = function(mutations) { - var iMutation = mutations.length, - nodeList; - while ( iMutation-- ) { - nodeList = mutations[iMutation].addedNodes; - if ( nodeList.length !== 0 ) { - addedNodeLists.push(nodeList); - } - } - if ( addedNodeListsTimer === undefined ) { - addedNodeListsTimer = vAPI.setTimeout(treeMutationObservedHandler, 47); - } - }; - - // https://github.com/gorhill/httpswitchboard/issues/176 - var treeObserver = new MutationObserver(treeMutationObservedHandlerAsync); - treeObserver.observe(document.body, { - childList: true, - subtree: true - }); - - vAPI.shutdown.add(function() { - if ( addedNodeListsTimer !== undefined ) { - clearTimeout(addedNodeListsTimer); + var treeMutationObservedHandler = function() { addedNodeListsTimer = undefined; - } - if ( treeObserver !== null ) { - treeObserver.disconnect(); - treeObserver = undefined; - } - addedNodeLists = []; - }); -})(); - -/******************************************************************************/ -/******************************************************************************/ + var i = addedNodeLists.length; + while ( i-- ) { + collapser.addNodeList(addedNodeLists[i]); + } + collapser.process(); + addedNodeLists = []; + }; -// Executed only once. -// -// https://github.com/gorhill/httpswitchboard/issues/25 -// -// https://github.com/gorhill/httpswitchboard/issues/131 -// Looks for inline javascript also in at least one a[href] element. -// -// https://github.com/gorhill/uMatrix/issues/485 -// Mind "on..." attributes. -// -// https://github.com/gorhill/uMatrix/issues/924 -// Report inline styles. + // https://github.com/gorhill/uBlock/issues/205 + // Do not handle added node directly from within mutation observer. + var treeMutationObservedHandlerAsync = function(mutations) { + var iMutation = mutations.length, + nodeList; + while ( iMutation-- ) { + nodeList = mutations[iMutation].addedNodes; + if ( nodeList.length !== 0 ) { + addedNodeLists.push(nodeList); + } + } + if ( addedNodeListsTimer === undefined ) { + addedNodeListsTimer = vAPI.setTimeout(treeMutationObservedHandler, 47); + } + }; -(function() { - if ( - document.querySelector('script:not([src])') !== null || - document.querySelector('a[href^="javascript:"]') !== null || - document.querySelector('[onabort],[onblur],[oncancel],[oncanplay],[oncanplaythrough],[onchange],[onclick],[onclose],[oncontextmenu],[oncuechange],[ondblclick],[ondrag],[ondragend],[ondragenter],[ondragexit],[ondragleave],[ondragover],[ondragstart],[ondrop],[ondurationchange],[onemptied],[onended],[onerror],[onfocus],[oninput],[oninvalid],[onkeydown],[onkeypress],[onkeyup],[onload],[onloadeddata],[onloadedmetadata],[onloadstart],[onmousedown],[onmouseenter],[onmouseleave],[onmousemove],[onmouseout],[onmouseover],[onmouseup],[onwheel],[onpause],[onplay],[onplaying],[onprogress],[onratechange],[onreset],[onresize],[onscroll],[onseeked],[onseeking],[onselect],[onshow],[onstalled],[onsubmit],[onsuspend],[ontimeupdate],[ontoggle],[onvolumechange],[onwaiting],[onafterprint],[onbeforeprint],[onbeforeunload],[onhashchange],[onlanguagechange],[onmessage],[onoffline],[ononline],[onpagehide],[onpageshow],[onrejectionhandled],[onpopstate],[onstorage],[onunhandledrejection],[onunload],[oncopy],[oncut],[onpaste]') !== null - ) { - vAPI.messaging.send('contentscript.js', { - what: 'securityPolicyViolation', - directive: 'script-src', - documentURI: window.location.href + // https://github.com/gorhill/httpswitchboard/issues/176 + var treeObserver = new MutationObserver(treeMutationObservedHandlerAsync); + treeObserver.observe(document.body, { + childList: true, + subtree: true }); - } - if ( document.querySelector('style,[style]') !== null ) { - vAPI.messaging.send('contentscript.js', { - what: 'securityPolicyViolation', - directive: 'style-src', - documentURI: window.location.href + vAPI.shutdown.add(function() { + if ( addedNodeListsTimer !== undefined ) { + clearTimeout(addedNodeListsTimer); + addedNodeListsTimer = undefined; + } + if ( treeObserver !== null ) { + treeObserver.disconnect(); + treeObserver = undefined; + } + addedNodeLists = []; }); - } - - collapser.addMany(document.querySelectorAll('img')); - collapser.addIFrames(document.querySelectorAll('iframe')); - collapser.process(); -})(); + })(); + + /******************************************************************************/ + /******************************************************************************/ + + // Executed only once. + // + // https://github.com/gorhill/httpswitchboard/issues/25 + // + // https://github.com/gorhill/httpswitchboard/issues/131 + // Looks for inline javascript also in at least one a[href] element. + // + // https://github.com/gorhill/uMatrix/issues/485 + // Mind "on..." attributes. + // + // https://github.com/gorhill/uMatrix/issues/924 + // Report inline styles. + + (function() { + if ( + document.querySelector('script:not([src])') !== null || + document.querySelector('a[href^="javascript:"]') !== null || + document.querySelector('[onabort],[onblur],[oncancel],[oncanplay],[oncanplaythrough],[onchange],[onclick],[onclose],[oncontextmenu],[oncuechange],[ondblclick],[ondrag],[ondragend],[ondragenter],[ondragexit],[ondragleave],[ondragover],[ondragstart],[ondrop],[ondurationchange],[onemptied],[onended],[onerror],[onfocus],[oninput],[oninvalid],[onkeydown],[onkeypress],[onkeyup],[onload],[onloadeddata],[onloadedmetadata],[onloadstart],[onmousedown],[onmouseenter],[onmouseleave],[onmousemove],[onmouseout],[onmouseover],[onmouseup],[onwheel],[onpause],[onplay],[onplaying],[onprogress],[onratechange],[onreset],[onresize],[onscroll],[onseeked],[onseeking],[onselect],[onshow],[onstalled],[onsubmit],[onsuspend],[ontimeupdate],[ontoggle],[onvolumechange],[onwaiting],[onafterprint],[onbeforeprint],[onbeforeunload],[onhashchange],[onlanguagechange],[onmessage],[onoffline],[ononline],[onpagehide],[onpageshow],[onrejectionhandled],[onpopstate],[onstorage],[onunhandledrejection],[onunload],[oncopy],[oncut],[onpaste]') !== null + ) { + vAPI.messaging.send('contentscript.js', { + what: 'securityPolicyViolation', + directive: 'script-src', + documentURI: window.location.href + }); + } -/******************************************************************************/ -/******************************************************************************/ + if ( document.querySelector('style,[style]') !== null ) { + vAPI.messaging.send('contentscript.js', { + what: 'securityPolicyViolation', + directive: 'style-src', + documentURI: window.location.href + }); + } -// Executed only once. + collapser.addMany(document.querySelectorAll('img')); + collapser.addIFrames(document.querySelectorAll('iframe')); + collapser.process(); + })(); + + /******************************************************************************/ + /******************************************************************************/ + + // Executed only once. + + // https://github.com/gorhill/uMatrix/issues/232 + // Force `display` property, Firefox is still affected by the issue. + + (function() { + var noscripts = document.querySelectorAll('noscript'); + if ( noscripts.length === 0 ) { return; } + + var redirectTimer, + reMetaContent = /^\s*(\d+)\s*;\s*url=(['"]?)([^'"]+)\2/i, + reSafeURL = /^https?:\/\//; + + var autoRefresh = function(root) { + var meta = root.querySelector('meta[http-equiv="refresh"][content]'); + if ( meta === null ) { return; } + var match = reMetaContent.exec(meta.getAttribute('content')); + if ( match === null || match[3].trim() === '' ) { return; } + var url = new URL(match[3], document.baseURI); + if ( reSafeURL.test(url.href) === false ) { return; } + redirectTimer = setTimeout( + function() { + location.assign(url.href); + }, + parseInt(match[1], 10) * 1000 + 1 + ); + meta.parentNode.removeChild(meta); + }; -// https://github.com/gorhill/uMatrix/issues/232 -// Force `display` property, Firefox is still affected by the issue. + var morphNoscript = function(from) { + if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) { + var to = document.createElement('span'); + while ( from.firstChild !== null ) { + to.appendChild(from.firstChild); + } + return to; + } + var parser = new DOMParser(); + var doc = parser.parseFromString( + '<span>' + from.textContent + '</span>', + 'text/html' + ); + return document.adoptNode(doc.querySelector('span')); + }; -(function() { - var noscripts = document.querySelectorAll('noscript'); - if ( noscripts.length === 0 ) { return; } - - var redirectTimer, - reMetaContent = /^\s*(\d+)\s*;\s*url=(['"]?)([^'"]+)\2/i, - reSafeURL = /^https?:\/\//; - - var autoRefresh = function(root) { - var meta = root.querySelector('meta[http-equiv="refresh"][content]'); - if ( meta === null ) { return; } - var match = reMetaContent.exec(meta.getAttribute('content')); - if ( match === null || match[3].trim() === '' ) { return; } - var url = new URL(match[3], document.baseURI); - if ( reSafeURL.test(url.href) === false ) { return; } - redirectTimer = setTimeout( - function() { - location.assign(url.href); - }, - parseInt(match[1], 10) * 1000 + 1 - ); - meta.parentNode.removeChild(meta); - }; - - var morphNoscript = function(from) { - if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) { - var to = document.createElement('span'); - while ( from.firstChild !== null ) { - to.appendChild(from.firstChild); + var renderNoscriptTags = function(response) { + if ( response !== true ) { return; } + var parent, span; + for ( var noscript of noscripts ) { + parent = noscript.parentNode; + if ( parent === null ) { continue; } + span = morphNoscript(noscript); + span.style.setProperty('display', 'inline', 'important'); + if ( redirectTimer === undefined ) { + autoRefresh(span); + } + parent.replaceChild(span, noscript); } - return to; - } - var parser = new DOMParser(); - var doc = parser.parseFromString( - '<span>' + from.textContent + '</span>', - 'text/html' + }; + + vAPI.messaging.send( + 'contentscript.js', + { what: 'mustRenderNoscriptTags?' }, + renderNoscriptTags ); - return document.adoptNode(doc.querySelector('span')); - }; - - var renderNoscriptTags = function(response) { - if ( response !== true ) { return; } - var parent, span; - for ( var noscript of noscripts ) { - parent = noscript.parentNode; - if ( parent === null ) { continue; } - span = morphNoscript(noscript); - span.style.setProperty('display', 'inline', 'important'); - if ( redirectTimer === undefined ) { - autoRefresh(span); - } - parent.replaceChild(span, noscript); - } - }; + })(); + + /******************************************************************************/ + /******************************************************************************/ vAPI.messaging.send( 'contentscript.js', - { what: 'mustRenderNoscriptTags?' }, - renderNoscriptTags - ); -})(); - -/******************************************************************************/ -/******************************************************************************/ - -vAPI.messaging.send( - 'contentscript.js', - { what: 'shutdown?' }, - function(response) { - if ( response === true ) { - vAPI.shutdown.exec(); + { what: 'shutdown?' }, + function(response) { + if ( response === true ) { + vAPI.shutdown.exec(); + } } - } -); + ); -/******************************************************************************/ -/******************************************************************************/ + /******************************************************************************/ + /******************************************************************************/ })(); 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