| (function(document) { var interval, defaultReloadFreq = 3, previousText, storage = chrome.storage.local; function getExtension(url) { url = url.substr(1 + url.lastIndexOf("/")) .split('?')[0] .split('#')[0]; return url.substr(1 + url.lastIndexOf(".")) } function resolveImg(img) { var src = $(img).attr("src"); if (src[0] == "/") { $(img).attr("src", src.substring(1)); } } // Onload, take the DOM of the page, get the markdown formatted text out and // apply the converter. function makeHtml(data) { storage.get('mathjax', function(items) { // Convert MarkDown to HTML without MathJax typesetting. // This is done to make page responsiveness. The HTML body // is replaced after MathJax typesetting. // BUG: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') // // FIXED: config.markedOptions.sanitize = items.mathjax ? false : true; marked.setOptions(config.markedOptions); var html = marked(data); $(document.body).html(html); $('img').on("error", function() { resolveImg(this); }); // Apply MathJax typesetting if (items.mathjax) { $.getScript(chrome.extension.getURL('js/marked.js')); $.getScript(chrome.extension.getURL('js/highlight.js'), function() { $.getScript(chrome.extension.getURL('js/config.js')); }); // Create hidden div to use for MathJax processing var mathjaxDiv = $("<div/>").attr("id", config.mathjaxProcessingElementId) .text(data) .hide(); $(document.body).append(mathjaxDiv); $.getScript(chrome.extension.getURL('js/runMathJax.js')); } }); } function getThemeCss(theme) { return chrome.extension.getURL('theme/' + theme + '.css'); } function setTheme(theme) { var defaultThemes = ['Clearness', 'ClearnessDark', 'Github', 'TopMarks']; if($.inArray(theme, defaultThemes) != -1) { var link = $('#theme'); $('#custom-theme').remove(); if(!link.length) { var ss = document.createElement('link'); ss.rel = 'stylesheet'; ss.id = 'theme'; //ss.media = "print"; ss.href = getThemeCss(theme); document.head.appendChild(ss); } else { link.attr('href', getThemeCss(theme)); } } else { var themePrefix = 'theme_', key = themePrefix + theme; storage.get(key, function(items) { if(items[key]) { $('#theme').remove(); var theme = $('#custom-theme'); if(!theme.length) { var style = $('<style/>').attr('id', 'custom-theme') .html(items[key]); $(document.head).append(style); } else { theme.html(items[key]); } } }); } } function setMathJax() { storage.get('enable_latex_delimiters', function(items) { // Enable MathJAX LaTeX delimiters if (items.enable_latex_delimiters) { config.enableLatexDelimiters(); } // Add MathJax configuration and js to document head $.getScript('https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML'); var mjc = $('<script/>').attr('type', 'text/x-mathjax-config') .html("MathJax.Hub.Config(" + JSON.stringify(config.mathjaxConfig) + ");"); $(document.head).append(mjc); }); } function stopAutoReload() { clearInterval(interval); } function startAutoReload() { stopAutoReload(); var freq = defaultReloadFreq; storage.get('reload_freq', function(items) { if(items.reload_freq) { freq = items.reload_freq; } }); interval = setInterval(function() { $.ajax({ url: location.href, cache: false, success: function(data) { if (previousText == data) { return; } makeHtml(data); previousText = data; } }); }, freq * 1000); } function render() { $.ajax({ url: location.href, cache: false, complete: function(xhr, textStatus) { var contentType = xhr.getResponseHeader('Content-Type'); if(contentType && (contentType.indexOf('html') > -1)) { return; } makeHtml(document.body.innerText); var specialThemePrefix = 'special_', pageKey = specialThemePrefix + location.href; storage.get(['theme', pageKey], function(items) { theme = items.theme ? items.theme : 'Clearness'; if(items[pageKey]) { theme = items[pageKey]; } setTheme(theme); }); storage.get('auto_reload', function(items) { if(items.auto_reload) { startAutoReload(); } }); } }); } storage.get(['exclude_exts', 'disable_markdown', 'mathjax'], function(items) { if(items.disable_markdown) { return; } if(items.mathjax) { setMathJax(); } var exts = items.exclude_exts; if(!exts) { render(); return; } var fileExt = getExtension(location.href); if (typeof exts[fileExt] == "undefined") { render(); } }); chrome.storage.onChanged.addListener(function(changes, namespace) { var specialThemePrefix = 'special_', pageKey = specialThemePrefix + location.href; for (key in changes) { var value = changes[key]; if(key == pageKey) { setTheme(value.newValue); } else if(key == 'theme') { storage.get(pageKey, function(items) { if(!items[pageKey]) { setTheme(value.newValue); } }); } else if(key == 'reload_freq') { storage.get('auto_reload', function(items) { startAutoReload(); }); } else if(key == 'auto_reload') { if(value.newValue) { startAutoReload(); } else { stopAutoReload(); } } else if(key == 'disable_markdown') { location.reload(); } } });}(document)); |