为v2ex而生的markdown渲染
当前为
// ==UserScript==
// @name v2exMarkdown
// @version 0.67.3
// @description 为v2ex而生的markdown渲染
// @author hundan
// @match https://*.v2ex.com/t/*
// @require https://cdn.staticfile.org/showdown/1.8.6/showdown.min.js
// @require https://cdn.staticfile.org/fancybox/3.3.5/jquery.fancybox.min.js
// @grant none
// @namespace https://github.com/hundan2020/v2exMarkdown
// ==/UserScript==
(function () {
// jquery.js和highlight.js都由v2ex自身提供，不再向外部重复请求
// 预处理以解决与 v2ex plus 的冲突
$(".reply_content img").each(function(){
var $this = $(this)
if ($this[0].src.indexOf(".sinaimg.cn") != -1 && $this[0].src.indexOf("http://") != -1) {
$this[0].src = "https" + $this[0].src.substr(4)
}
})
// markdown处理
var preFix = function(rawReply){
var picRe = function(reply){
reply = reply.replace(/(?:!\[.*?\])?!\[.*?\]\(\s*((?:https?)?:\/\/i\.loli\.net\/\d{4}\/\d{2}\/\d{2}\/[a-z0-9]+.[a-z]+)\)|(https:\/\/i\.loli\.net\/\d{4}\/\d{2}\/\d{2}\/[a-z0-9]+.[a-z]+)/ig, ' + ' )') // sm.ms
reply = reply.replace(/(?:!\[.*?\])?!\[.*?\]\(\s*((?:https?)?:\/\/imgurl\.org\/temp\/\d{4}\/[a-z0-9]+\.[a-z0-9]+)\)|(https?:\/\/imgurl\.org\/temp\/\d{4}\/[a-z0-9]+\.[a-z0-9]+)/ig, ' + ' )') // 小z图床
reply = reply.replace(/(?<!http:|https:)\/\/([a-z0-9]+\.sinaimg.cn\/(?:[a-z]+)\/[a-z0-9]+\.(?:jpg|png|gif|bmp))/ig, ' + ' )') // 新浪微博不规则图片链接
return reply
}
var xssFilter = function(reply){
var sReply = reply
sReply = sReply.replace(/(!?\[.*?\]\(\s*?javascript.*?\))/igs, '`$1`')
return sReply
}
var fixedReply = rawReply
fixedReply = fixedReply.replace(/#(\d{1,3}\s)/ig, '#$1 ') // 避免楼层号加粗
fixedReply = fixedReply.replace(/(!\[(\S*?)\]\(\s+?)<a target="_blank" href="(\S+?)".*?><img src="(\S+?)" class="embedded_image".*?><\/a>\)+/ig, '') // 正常显示的图片处理
fixedReply = fixedReply.replace(/<img src="(.+?)" \/>/ig, '$1') // 不规则图片链接处理
fixedReply = fixedReply.replace(/@<a href="\/member\/(\S+?)">(\S+?)<\/a>/ig, '@[$1](/member/$2)') // 论坛内@处理，考虑到代码段中的@应当正常显示
fixedReply = fixedReply.replace(/<a target="_blank" href="(\/t\/\d+)"\s*?(?:rel="nofollow")?>\/t\/\d+<\/a>/ig, '[$1]($1)') // 论坛内链处理，考虑到在代码段中应当正常显示
fixedReply = fixedReply.replace(/<a.*? href="(\S+?)".*?>(\S+?)<\/a>/ig, '$2') // 链接处理
fixedReply = fixedReply.replace(/\[!\[(\S+?)\]\(\s*(\S+?)\)\]\(\s*\S+?\)/ig, '') // 不规则图片链接处理，不规则案例见 `https://www.v2ex.com/t/463469#r_5792042`
fixedReply = fixedReply.replace(/(\n)?<br *\/?>/ig, "\n") // 换行处理，避免多行代码无法正常工作
fixedReply = fixedReply.replace(/(https?:\/\/[\w\.\/\?\+%#\\]+)/ig, '$1 ') // 修正a标签链接，解决中文与链接混用导致的错误解析
fixedReply = picRe(fixedReply)
fixedReply = xssFilter(fixedReply)
return fixedReply
}
var endFix = function(markedReply){
var fixedReply = markedReply
fixedReply = fixedReply.replace(/\n/ig, '<br />') // markdown软回车转硬回车
fixedReply = fixedReply.replace(/(<\/ul>|<\/li>|<\/p>|<\/table>|<\/h\d>)\s*<br\s*\/?>/ig, '$1') // 表格换行删除
fixedReply = fixedReply.replace(/<br\s*\/?>(<li>|<ul>|<p>|<table>|<h\d>)/ig, '$1') // 表格换行删除
fixedReply = fixedReply.replace(/(<\/?table>|<\/?tbody>|<\/?thead>|<\/?tr>|<\/?th>|<\/?td>)<br\s*\/?>/ig, '$1') // 表格换行删除
fixedReply = fixedReply.replace(/(<br\s*\/?>\s*){2,}/ig, '<br />') // 多重换行转单行
fixedReply = fixedReply.replace(/@\[(\S+?)\]\(\/member\/\S+\)/ig, '@$1') // 代码段中的@ 还原
fixedReply = fixedReply.replace(/\[(\/t\/\d+)\]\(\/t\/\d+\)/ig, '$1') // 代码段中的内链还原
fixedReply = fixedReply.replace(/&/ig, '&') // 对重复转义的 & 进行还原，而不必对<>进行操作，有效的避免了XSS发生
return fixedReply
}
var processMarkdown = function(){
$("div.reply_content").each(function () {
var reply = $(this)[0]
var rawReply = reply.innerHTML
var converter = new showdown.Converter({
omitExtraWLInCodeBlocks: true,
parseImgDimensions: true,
simplifiedAutoLink: true,
literalMidWordUnderscores: true,
strikethrough: true,
tables: true,
ghCodeBlocks: true,
tasklists: true,
smoothLivePreview: true,
ghCompatibleHeaderId: true,
encodeEmails: true,
emoji: true
})
var markedReply = converter.makeHtml(preFix(rawReply))
reply.innerHTML = endFix(markedReply)
reply.className = 'reply_content markdown_body'
// 开启代码高亮
hljs.configure({useBR: true})
$('div.reply_content code').each(function(i, block) {
hljs.highlightBlock(block)
})
})
}
processMarkdown()
// 加载看图插件
function loadStyle(url){
var link = document.createElement('link')
link.type = 'text/css'
link.rel = 'stylesheet'
link.href = url
var head = document.getElementsByTagName('head')[0]
head.appendChild(link)
}
loadStyle('https://cdn.staticfile.org/fancybox/3.3.5/jquery.fancybox.min.css')
var a_wrap = $('<a></a>')
var imgs = $('.markdown_body img, .topic_content img')
imgs.wrap('<a></a>')
$.each(imgs, function (i, j) {
$(j).css({'max-height':'25vh'})
// let a_src = $(this).attr('src').replace(/^(?:https?:)?(?:\/\/)?(\w+.sinaimg.cn\/)/, "https://$1")
$(j).parent().attr('id', 'img' + i).attr('href', $(this).attr('src'))
console.log($(this).attr('src'))
// 通过延迟解决与v2ex plus的冲突
setTimeout(function(){
$("#img" + i).fancybox({
buttons: [
"slideShow",
"thumbs",
"close"
],
'zoomSpeedIn': 300,
'zoomSpeedOut': 300,
'overlayShow': false,
'overlayOpacity': 0.3
})
},500)
})
// 添加楼主标记
let author = $('#Main > div:nth-child(2) > div.header > small > a').text()
$('table > tbody > tr > td > strong > a').each(function(){
if ($(this).text() == author){
var sign = $('<span></span>')
sign.text('楼主')
sign.css({"padding": "1px 5px", "margin": "0 6px", "font-size": "x-small", "color": "#777", "border-radius": "8px", "border": "1px solid"})
$(this).parent().after(sign)
}
})
// 修复新浪外链
$("img").each(function(){
})
window.refererBypass = `
<script src="https://cdn.staticfile.org/jquery/3.4.0/jquery.min.js">
<\/script>
<script>
$(parent.document).find("img").each(function(){
let img_src = $(this).attr("src")
let preload_img = \`<img src="\$\{img_src\}" />\`
document.write(preload_img)
})
$('img').on('load', function () {
//console.log(this.src)
$(parent.document).find('img[src$="'+this.src+'"]').each(function () {
this.src = this.src
})
})
<\/script>
`
$('body').append('<iframe src="javascript:parent.refererBypass;" style="display: none;"></iframe>')
$(function(){
setTimeout(function(){
console.clear()
console.log("\n\n\n Thanks for using my script~\n\n\n\n")
}, 2000)
})
})()
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