nginx结合autoindex美化索引页面

<!-- autoindex.html 20221104 for nginx, see https://phus.lu -->
<script>
var marked_js = 'https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/marked/4.0.2/marked.min.js'
var github_markdown_css = 'https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/github-markdown-css/5.1.0/github-markdown-light.min.css'
!function(){
	var website_title = ''
	var max_name_length = 60
	var datetime_format = '%Y-%m-%d %H:%M:%S'
	var enable_readme_md = true
	var enable_footer_js = true

	var dom = {
		element: null,
		get: function (o) {
			var obj = Object.create(this)
			obj.element = (typeof o == "object") ? o : document.createElement(o)
			return obj
		},
		add: function (o) {
			var obj = dom.get(o)
			this.element.appendChild(obj.element)
			return obj
		},
		text: function (t) {
			this.element.appendChild(document.createTextNode(t))
			return this
		},
		html: function (s) {
			this.element.innerHTML = s
			return this
		},
		attr: function (k, v) {
			this.element.setAttribute(k, v)
			return this
		}
	}

	head = dom.get(document.head)
	head.add('meta').attr('charset', 'utf-8')
	head.add('meta').attr('name', 'viewport').attr('content', 'width=device-width,initial-scale=1')

	if (!document.title) {
		document.write(["<div class=\"container\">",
		"<h3>nginx.conf</h3>",
		"<textarea rows=8 cols=50>",
		"# download autoindex.html to /wwwroot/",
		"location ~ ^(.*)/$ {",
		"    charset utf-8;",
		"    autoindex on;",
		"    autoindex_localtime on;",
		"    autoindex_exact_size off;",
		"    add_after_body /autoindex.html;",
		"}",
		"</textarea>",
		"</div>"].join("\n"))
		return
	}

	var bodylines = document.body.innerHTML.split('\n')
	document.body.innerHTML = ''

	titlehtml = document.title.replace(/\/$/, '').split('/').slice(1).reduce(function(acc, v, i, a) {
		return acc + '<a href="/' + a.slice(0, i+1).join('/') + '/">' + v + '</a>/'
	}, '<a href="/">Index</a> of /')
	if (website_title) {
		document.title = website_title + ' - ' + document.title
	}
	head.add('meta').attr('name', 'description').attr('content', document.title)

	div = dom.get('div').attr('class', 'container')
	div.add('table').add('tbody').add('tr').add('th').html(titlehtml)
	tbody = div.add('table').attr('class', 'table-hover').add('tbody')

	names = ['Name', 'Date', 'Size']
	thead = tbody.add('tr')
	for (i = 0; i < names.length; i++)
		thead.add('td').add('a').attr('href', 'javascript:sortby('+i+')').attr('class', 'octicon arrow-up').text(names[i]);
	thead.add('td').attr('class', 'octicon').text('preview')

	var insert = function(filename, datetime, size) {
		if (/\/$/.test(filename)) {
			css = 'file-directory'
			size = ''
		} else if (/\.(zip|7z|bz2|gz|tar|tgz|tbz2|xz|cab)$/.test(filename)) {
			css = 'file-zip'
		} else if (/\.(py|js|php|pl|rb|sh|bash|lua|sql|go|rs|java|c|h|cpp|cxx|hpp)$/.test(filename)) {
			css = 'file-code'
		} else if (/\.(jpg|png|bmp|gif|ico|webp)$/.test(filename)) {
			css = 'file-media'
		} else if (/\.(flv|mp4|mkv|avi|mkv|vp9)$/.test(filename)) {
			css = 'device-camera-video'
		} else {
			css = 'file'
		}

		displayname = decodeURIComponent(filename.replace(/\/$/, ''))
		if (displayname.length > max_name_length)
			displayname = displayname.substring(0, max_name_length-3) + '..>';

		if (!isNaN(Date.parse(datetime))) {
			d = new Date(datetime)
			pad = function (s) {return s < 10 ? '0' + s : s}
			mon = function (m) {return ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'][m]}
			datetime = datetime_format
					.replace('%Y', d.getFullYear())
					.replace('%m', pad(d.getMonth()+1))
					.replace('%d', pad(d.getDate()))
					.replace('%H', pad(d.getHours()))
					.replace('%M', pad(d.getMinutes()))
					.replace('%S', pad(d.getSeconds()))
					.replace('%b', mon(d.getMonth()))
		}

		tr = tbody.add('tr')
		tr.add('td').add('a').attr('class', 'octicon ' + css).attr('href', filename).text(displayname)
		tr.add('td').text(datetime)
		tr.add('td').text(size)

		if (/\.(md)$/.test(filename)) {
			tr.add('td').add('input').attr('type', 'button').attr('value','preview').attr('onclick', 'onPreview("' + filename +'")').attr('id', filename)
		} else {
			tr.add('td')
		}
	}

	var readme = '', footer = ''
	insert('../', '', '-')
	for (var i in bodylines) {
		if (m = /\s*<a href="(.+?)">(.+?)<\/a>\s+(\S+)\s+(\S+)\s+(\S+)\s*/.exec(bodylines[i])) {
			filename = m[1]
			datetime = m[3] + ' ' + m[4]
			size = m[5]
			insert(filename, datetime, size)
			switch (filename.toLowerCase()) {
			case 'readme.md':
				readme = filename
				break
			case 'footer.js':
				footer = filename
				break
			}
		}
	}

	document.documentElement.lang = navigator.language
	document.body.appendChild(div.element)

	if (enable_readme_md && readme !== '') {
		tbody = div.add('table').add('tbody');
		tbody.add('tr').add('th').attr('class', 'octicon octicon-book').text(readme)
		tbody.add('tr').add('td').add('div').attr('id', 'readme').attr('class', 'markdown-body')
		xhr = new XMLHttpRequest()
		xhr.open('GET', location.pathname.replace(/[^/]+$/, '')+readme, true)
		xhr.onload = function() {
			if (xhr.status < 200 && xhr.status >= 400)
				return
			wait = function (name, callback) {
				var interval = 10; // ms
				window.setTimeout(function() {
					if (window[name]) {
						callback(window[name])
					} else {
						window.setTimeout(arguments.callee, interval)
					}
				}, interval)
			}
			wait('marked', function() {
				document.getElementById("readme").innerHTML = marked.parse(xhr.responseText)
			})
		}
		xhr.send()

		div.add('script').attr('src', marked_js)
		div.add('link').attr('rel', 'stylesheet').attr('href', github_markdown_css)
	}

	if (enable_footer_js && footer !== '') {
		div.add('script').attr('src', footer)
	}
}()

function onPreview(filename) {
	myWindow=window.open('','_blank','');
	myWindow.document.write("<div id='markdown'></div");
	myWindow.document.title=filename 
	ele = myWindow.document.getElementById("markdown")
	
	xhr = new XMLHttpRequest()
	xhr.open('GET', location.pathname.replace(/[^/]+$/, '')+filename, true)
	xhr.onload = function() {
		if (xhr.status < 200 && xhr.status >= 400)
			return
		wait = function (name, callback) {
			var interval = 10; // ms
			window.setTimeout(function() {
				if (window[name]) {
					callback(window[name])
				} else {
					window.setTimeout(arguments.callee, interval)
				}
			}, interval)
		}
		wait('marked', function() {
			myWindow.document.getElementById("markdown").innerHTML = marked.parse(xhr.responseText)
		})
	}
	xhr.send()
	div.add('script').attr('src', marked_js)
	div.add('link').attr('rel', 'stylesheet').attr('href', github_markdown_css)
	myWindow.focus();
}

function sortby(index) {
	rows = document.getElementsByClassName('table-hover')[0].rows
	link = rows[0].getElementsByTagName('a')[index]
	arrow = link.className == 'octicon arrow-down' ? 1 : -1
	link.className = 'octicon arrow-' + (arrow == 1 ? 'up' : 'down');
	[].slice.call(rows).slice(2).map(function (e, i) {
		type = e.getElementsByTagName('a')[0].className == 'octicon file-directory' ? 0 : 1
		text = e.getElementsByTagName('td')[index].innerText
		if (index === 0) {
			value = text
		} else if (index === 1) {
			value = new Date(text).getTime()
		} else if (index === 2) {
			m = {'G':1024*1024*1024, 'M':1024*1024, 'K':1024}
			value = parseInt(text || 0) * (m[text[text.search(/[KMG]B?$/)]] || 1)
		}
		return {type: type, value: value, index: i, html: e.innerHTML}
	}).sort(function (a, b) {
		if (a.type != b.type)
			return a.type - b.type
		if (a.value != b.value)
			return a.value < b.value ? -arrow : arrow
		return a.index < b.index ? -arrow : arrow
	}).forEach(function (e, i) {
		rows[2+i].innerHTML = e.html
	})
}
</script>

<style>
body {
	margin: 0;
	font-family: "ubuntu", "Tahoma", "Microsoft YaHei", Arial, Serif;
}
.container {
	padding-right: 15px;
	padding-left: 15px;
	margin-right: auto;
	margin-left: auto;
}
@media (min-width: 768px) {
	.container {
		max-width: 750px;
	}
}
@media (min-width: 992px) {
	.container {
		max-width: 970px;
	}
}
@media (min-width: 1200px) {
	.container {
		max-width: 1170px;
	}
}
table {
	width: 100%;
	max-width: 100%;
	margin-bottom: 20px;
	border: 1px solid #ddd;
	padding: 0;
	border-collapse: collapse;
}
table th {
	font-size: 14px;
}
table tr {
	border: 1px solid #ddd;
	padding: 5px;
}
table tr:nth-child(odd) {
	background: #f9f9f9
}
table th, table td {
	border: 1px solid #ddd;
	font-size: 14px;
	line-height: 20px;
	padding: 3px;
	text-align: left;
}
a {
	color: #337ab7;
	text-decoration: none;
}
a:hover, a:focus {
	color: #2a6496;
	text-decoration: underline;
}
table.table-hover > tbody > tr:hover > td,
table.table-hover > tbody > tr:hover > th {
	background-color: #f5f5f5;
}
.markdown-body {
	float: left;
	font-family: "ubuntu", "Tahoma", "Microsoft YaHei", Arial, Serif;
}
/* octicons */
.octicon {
	background-position: center left;
	background-repeat: no-repeat;
	padding-left: 16px;
}
.file {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='16' viewBox='0 0 12 16'%3E%3Cpath d='M6 5L2 5 2 4 6 4 6 5 6 5ZM2 8L9 8 9 7 2 7 2 8 2 8ZM2 10L9 10 9 9 2 9 2 10 2 10ZM2 12L9 12 9 11 2 11 2 12 2 12ZM12 4.5L12 14C12 14.6 11.6 15 11 15L1 15C0.5 15 0 14.6 0 14L0 2C0 1.5 0.5 1 1 1L8.5 1 12 4.5 12 4.5ZM11 5L8 2 1 2 1 14 11 14 11 5 11 5Z' fill='%237D94AE'/%3E%3C/svg%3E");
}
.file-directory {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='16' viewBox='0 0 14 16'%3E%3Cpath d='M13 4L7 4 7 3C7 2.3 6.7 2 6 2L1 2C0.5 2 0 2.5 0 3L0 13C0 13.6 0.5 14 1 14L13 14C13.6 14 14 13.6 14 13L14 5C14 4.5 13.6 4 13 4L13 4ZM6 4L1 4 1 3 6 3 6 4 6 4Z' fill='%237D94AE'/%3E%3C/svg%3E");
}
.file-zip {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='16' viewBox='0 0 12 16'%3E%3Cpath d='M8.5 1L1 1C0.4 1 0 1.4 0 2L0 14C0 14.6 0.4 15 1 15L11 15C11.6 15 12 14.6 12 14L12 4.5 8.5 1ZM11 14L1 14 1 2 4 2 4 3 5 3 5 2 8 2 11 5 11 14 11 14ZM5 4L5 3 6 3 6 4 5 4 5 4ZM4 4L5 4 5 5 4 5 4 4 4 4ZM5 6L5 5 6 5 6 6 5 6 5 6ZM4 6L5 6 5 7 4 7 4 6 4 6ZM5 8L5 7 6 7 6 8 5 8 5 8ZM4 9.3C3.4 9.6 3 10.3 3 11L3 12 7 12 7 11C7 9.9 6.1 9 5 9L5 8 4 8 4 9.3 4 9.3ZM6 10L6 11 4 11 4 10 6 10 6 10Z' fill='%237D94AE'/%3E%3C/svg%3E");
}
.file-code {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='16' viewBox='0 0 12 16'%3E%3Cpath d='M8.5,1 L1,1 C0.45,1 0,1.45 0,2 L0,14 C0,14.55 0.45,15 1,15 L11,15 C11.55,15 12,14.55 12,14 L12,4.5 L8.5,1 L8.5,1 Z M11,14 L1,14 L1,2 L8,2 L11,5 L11,14 L11,14 Z M5,6.98 L3.5,8.5 L5,10 L4.5,11 L2,8.5 L4.5,6 L5,6.98 L5,6.98 Z M7.5,6 L10,8.5 L7.5,11 L7,10.02 L8.5,8.5 L7,7 L7.5,6 L7.5,6 Z' fill='%237D94AE' /%3E%3C/svg%3E");
}
.file-media {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='16' viewBox='0 0 12 16'%3E%3Cpath d='M6 5L8 5 8 7 6 7 6 5 6 5ZM12 4.5L12 14C12 14.6 11.6 15 11 15L1 15C0.5 15 0 14.6 0 14L0 2C0 1.5 0.5 1 1 1L8.5 1 12 4.5 12 4.5ZM11 5L8 2 1 2 1 13 4 8 6 12 8 10 11 13 11 5 11 5Z' fill='%237D94AE'/%3E%3C/svg%3E");
}
.device-camera-video {
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M15.2,2.09 L10,5.72 L10,3 C10,2.45 9.55,2 9,2 L1,2 C0.45,2 0,2.45 0,3 L0,12 C0,12.55 0.45,13 1,13 L9,13 C9.55,13 10,12.55 10,12 L10,9.28 L15.2,12.91 C15.53,13.14 16,12.91 16,12.5 L16,2.5 C16,2.09 15.53,1.86 15.2,2.09 L15.2,2.09 Z' fill='%237D94AE' /%3E%3C/svg%3E");
}
.octicon-book {
	padding-left: 20px;
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M3,5 L7,5 L7,6 L3,6 L3,5 L3,5 Z M3,8 L7,8 L7,7 L3,7 L3,8 L3,8 Z M3,10 L7,10 L7,9 L3,9 L3,10 L3,10 Z M14,5 L10,5 L10,6 L14,6 L14,5 L14,5 Z M14,7 L10,7 L10,8 L14,8 L14,7 L14,7 Z M14,9 L10,9 L10,10 L14,10 L14,9 L14,9 Z M16,3 L16,12 C16,12.55 15.55,13 15,13 L9.5,13 L8.5,14 L7.5,13 L2,13 C1.45,13 1,12.55 1,12 L1,3 C1,2.45 1.45,2 2,2 L7.5,2 L8.5,3 L9.5,2 L15,2 C15.55,2 16,2.45 16,3 L16,3 Z M8,3.5 L7.5,3 L2,3 L2,12 L8,12 L8,3.5 L8,3.5 Z M15,3 L9.5,3 L9,3.5 L9,12 L15,12 L15,3 L15,3 Z' /%3E%3C/svg%3E");
}
.arrow-down {
	font-weight: bold;
	text-decoration: none !important;
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='16' viewBox='0 0 10 16'%3E%3Cpolygon id='Shape' points='7 7 7 3 3 3 3 7 0 7 5 13 10 7'%3E%3C/polygon%3E%3C/svg%3E");
}
.arrow-up {
	font-weight: bold;
	text-decoration: none !important;
	background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='16' viewBox='0 0 10 16'%3E%3Cpolygon id='Shape' points='5 3 0 9 3 9 3 13 7 13 7 9 10 9'%3E%3C/polygon%3E%3C/svg%3E");
}
</style>