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https://github.com/alexadam/save-as-ebook.git
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add support for more html elements
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alexadam
parent
9f4b6be294
commit
c8b4771cfe
1 changed files with 17 additions and 105 deletions
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@ -1,6 +1,15 @@
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var allImages = [];
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var extractedImages = [];
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var maxNrOfElements = 10000;
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var allowedTags = [
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'address', 'article', 'aside', 'footer', 'header', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
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'hgroup', 'nav', 'section', 'dd', 'div', 'dl', 'dt', 'figcaption', 'figure', 'hr', 'li',
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'main', 'ol', 'p', 'pre', 'ul', 'a', 'abbr', 'b', 'bdi', 'bdo', 'br', 'cite', 'code', 'data',
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'dfn', 'em', 'i', 'img', 'kbd', 'mark', 'q', 'rp', 'rt', 'rtc', 'ruby', 's', 'samp', 'small', 'span',
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'strong', 'sub', 'sup', 'time', 'u', 'var', 'wbr', 'del', 'ins', 'caption', 'col', 'colgroup',
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'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'tr'
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];
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//////
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function getImageSrc(srcTxt) {
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@ -45,108 +54,31 @@ function formatPreCodeElements($jQueryElement) {
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});
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}
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// function force3(dirty) {
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// var tagOpen = '@@@';// + generateRandomTag();
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// var tagClose = '###';// + generateRandomTag();
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// var removeElements = ['script', 'style', 'svg', 'canvas', 'noscript'];
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// var inlineElements = ['h1', 'h2', 'h3', 'sup', 'b', 'i', 'em', 'code', 'pre', 'p'];
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// var replaceElements = [['li', 'p'], ['tr', 'p']];
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//
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// // var bodyClone = document.getElementsByTagName('body')[0].cloneNode(true);
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//
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// var bodyClone = document.createElement('div');
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// bodyClone.innerHTML = dirty;
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//
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//
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// /////
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//
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// var imgs = bodyClone.getElementsByTagName('img');
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// for (var i = 0; i < imgs.length; i++) {
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// var newImg = document.createElement('span');
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// newImg.innerHTML = tagOpen + 'img src="' + getImageSrc(imgs[i].getAttribute('src')) + '"' + tagClose + tagOpen + '/img' + tagClose;
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// imgs[i].parentNode.replaceChild(newImg, imgs[i]);
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// }
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//
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// var links = bodyClone.getElementsByTagName('a');
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// for (i = 0; i < links.length; i++) {
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// var newLink = document.createElement('span');
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// newLink.innerHTML = tagOpen + 'a href="' + getHref(links[i].getAttribute('href')) + '"' + tagClose + links[i].innerHTML + tagOpen + '/a' + tagClose;
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// links[i].parentNode.replaceChild(newLink, links[i]);
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// }
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//
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// for (i = 0; i < inlineElements.length; i++) {
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// var tagName = inlineElements[i];
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// var miscElements = bodyClone.getElementsByTagName(tagName);
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// for (var j = 0; j < miscElements.length; j++) {
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// var elemToBeReplaced = miscElements[j];
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// var newElement = document.createElement('span');
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// newElement.innerHTML = tagOpen + tagName + tagClose + elemToBeReplaced.innerHTML + tagOpen + '/' + tagName + tagClose;
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// elemToBeReplaced.parentNode.replaceChild(newElement, elemToBeReplaced);
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// }
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// }
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//
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// for (i = 0; i < replaceElements.length; i++) {
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// var crtTagPair = replaceElements[i];
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// var searchForTag = crtTagPair[0];
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// var replaceWithTag = crtTagPair[1];
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// var miscElements = bodyClone.getElementsByTagName(searchForTag);
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// for (var j = 0; j < miscElements.length; j++) {
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// var elemToBeReplaced = miscElements[j];
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// var newElement = document.createElement('span');
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// newElement.innerHTML = tagOpen + replaceWithTag + tagClose + elemToBeReplaced.innerHTML + tagOpen + '/' + replaceWithTag + tagClose;
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// elemToBeReplaced.parentNode.replaceChild(newElement, elemToBeReplaced);
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// }
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// }
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//
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// var contentString = bodyClone.innerText;
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//
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// var tagOpenRegex = new RegExp(tagOpen, 'gi');
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// var tagCloseRegex = new RegExp(tagClose, 'gi');
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// contentString = contentString.replace(tagOpenRegex, '<');
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// contentString = contentString.replace(tagCloseRegex, '>');
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// contentString = contentString.replace(/&/gi, '&');
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// contentString = contentString.replace(/&/gi, '&');
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//
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// return contentString;
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//
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// }
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function force(contentString) {
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try {
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var tagOpen = '@@@' + generateRandomTag();
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var tagClose = '###' + generateRandomTag();
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var inlineElements = ['h1', 'h2', 'h3', 'sup', 'b', 'i', 'em', 'code', 'pre', 'p'];
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var replaceElements = [['li', 'p'], ['tr', 'p']];
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var startEl = '<object>';
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var endEl = '</object>';
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var $content = $(contentString);
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formatPreCodeElements($content);
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$content.find('img').each(function (index, elem) {
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$(elem).replaceWith('<span>' + tagOpen + 'img src="' + getImageSrc($(elem).attr('src').trim()) + '"' + tagClose + tagOpen + '/img' + tagClose + '</span>');
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$(elem).replaceWith(startEl + tagOpen + 'img src="' + getImageSrc($(elem).attr('src').trim()) + '"' + tagClose + tagOpen + '/img' + tagClose + endEl);
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});
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$content.find('a').each(function (index, elem) {
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$(elem).replaceWith('<span>' + tagOpen + 'a href="' + getHref($(elem).attr('href').trim()) + '"' + tagClose + $(elem).html() + tagOpen + '/a' + tagClose + '</span>');
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$(elem).replaceWith(startEl + tagOpen + 'a href="' + getHref($(elem).attr('href').trim()) + '"' + tagClose + $(elem).html() + tagOpen + '/a' + tagClose + endEl);
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});
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if ($('*').length < maxNrOfElements) {
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replaceElements.forEach(function (replacePair) {
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var searchFor = replacePair[0];
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var tagName = replacePair[1];
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var tmpElems = $content.find(searchFor);
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while (tmpElems.length > 0) {
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$tmpElem = $(tmpElems[0]);
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$tmpElem.replaceWith('<span>' + tagOpen + tagName + tagClose + $tmpElem.html() + tagOpen + '/' + tagName + tagClose + '</span>');
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tmpElems = $content.find(searchFor);
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}
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});
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inlineElements.forEach(function (tagName) {
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allowedTags.forEach(function (tagName) {
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var tmpElems = $content.find(tagName);
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while (tmpElems.length > 0) {
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$tmpElem = $(tmpElems[0]);
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$tmpElem.replaceWith('<span>' + tagOpen + tagName + tagClose + $tmpElem.html() + tagOpen + '/' + tagName + tagClose + '</span>');
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$tmpElem.replaceWith(startEl + tagOpen + tagName + tagClose + $tmpElem.html() + tagOpen + '/' + tagName + tagClose + endEl);
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tmpElems = $content.find(tagName);
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}
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});
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@ -158,7 +90,7 @@ function force(contentString) {
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var tagCloseRegex = new RegExp(tagClose, 'gi');
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contentString = contentString.replace(tagOpenRegex, '<');
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contentString = contentString.replace(tagCloseRegex, '>');
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contentString = contentString.replace(/&nbsp;/gi, ' ');
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contentString = contentString.replace(/ /gi, ' ');
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return contentString;
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} catch (e) {
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@ -175,7 +107,7 @@ function sanitize(rawContentString) {
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try {
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var wdirty = $.parseHTML(rawContentString);
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$wdirty = $(wdirty);
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$wdirty.find('script, style, svg, canvas, noscript').remove(); // TODO remove iframes
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$wdirty.find('script, style, svg, canvas, noscript, iframe').remove();
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$wdirty.find('*:empty').not('img').remove();
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formatPreCodeElements($wdirty);
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@ -188,12 +120,6 @@ function sanitize(rawContentString) {
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var results = '';
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var lastFragment = '';
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var lastTag = '';
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var inList = false;
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var allowedTags = ['div', 'p', 'code', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'span', 'blockquote',
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'img', 'a', 'ol', 'ul', 'li', 'b', 'i', 'sup', 'strong', 'strike',
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'table', 'tr', 'td', 'th', 'thead', 'tbody', 'pre', 'em'
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];
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var allowedTextTags = ['h4', 'h5', 'h6', 'span'];
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HTMLParser(dirty, {
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start: function(tag, attrs, unary) {
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@ -202,13 +128,6 @@ function sanitize(rawContentString) {
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return;
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}
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if (tag === 'ol' || tag === 'ul') {
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inList = true;
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}
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if (tag === 'li' && !inList) {
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tag = 'p';
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}
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var tattrs = null;
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if (tag === 'img') {
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tattrs = attrs.filter(function(attr) {
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@ -236,13 +155,6 @@ function sanitize(rawContentString) {
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return;
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}
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if (tag === 'ol' || tag === 'ul') {
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inList = false;
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}
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if (tag === 'li' && !inList) {
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tag = 'p';
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}
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results += "</" + tag + ">\n";
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},
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chars: function(text) {
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