<?php
/*********************************************************************************************************************/
/* Script name : index.php                                                                                           */
/* Description : MINIXED is a minimal but nice-looking PHP directory indexer.                                        */
/* Source      : https://github.com/lorenzos/Minixed                                                                 */
/* Modifications :                                                                                                   */
/* June 2017   : Debug flag addition, Title change, CSS modifications , test background use and script modifications */
/*               to remove test image from the list by PN                                                            */
/*********************************************************************************************************************/
	// =============================
	// Configuration                
	// =============================
	$debug_v3test = false;
	$browseDirectories = false; // Navigate into sub-folders
//	$title = 'Index of {{path}}';
        $title = 'RFC Editor Experimental Space';
//	$subtitle = '{{files}} objects in this folder, {{size}} total'; // Empty to disable
	$subtitle = 'This page lists files being tested with tools related to the xml2rfc v3
  format.  The files are NOT definitive.  Please do not bookmark these
  files or this page as the files will change and this page will eventually be removed.';
	$showParent = false; // Display a (parent directory) link
	$showDirectories = true;
	$showHiddenFiles = false; // Display files starting with "." too
	$alignment = 'left'; // You can use 'left' or 'center'
	$showIcons = true;
	$dateFormat = 'd/m/y H:i'; // Used in date() function
	$sizeDecimals = 1;
	$robots = 'noindex, nofollow'; // Avoid robots by default
	$showFooter = true; // Display the "Powered by" footer
	
	// =============================
	// =============================
	
	// Who am I?
	$_self = basename($_SERVER['PHP_SELF']);
	$_path = str_replace('\\', '/', dirname($_SERVER['PHP_SELF']));
	$_total = 0;
	$_total_size = 0;
	
	// Directory browsing
	$_browse = null;
	$_GET['b'] = trim(str_replace('\\', '/', $_GET['b']), '/ ');
	$_GET['b'] = str_replace(array('/..', '../'), '', $_GET['b']); // Avoid going up into filesystem
	if (!empty($_GET['b']) && $_GET['b'] != '..' && is_dir($_GET['b'])) $_browse = $_GET['b'];
	
	// Encoded images generator
	if (!empty($_GET['i'])) {
		header('Content-type: image/png');
		switch ($_GET['i']) {
			case       'asc': exit(base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAYAAADEUlfTAAAAFUlEQVQImWNgoBT8x4JxKsBpAhUAAPUACPhuMItPAAAAAElFTkSuQmCC'));
			case      'desc': exit(base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAYAAADEUlfTAAAAF0lEQVQImWNgoBb4j0/iPzYF/7FgCgAADegI+OMeBfsAAAAASUVORK5CYII='));
			case 'directory': exit(base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAASklEQVQYlYWPwQ3AMAgDb3Tv5AHdR5OqTaBB8gM4bAGApACPRr/XuujA+vqVcAI3swDYjqRSH7B9oHI8grbTgWN+g3+xq0k6TegCNtdPnJDsj8sAAAAASUVORK5CYII='));
			case      'file': exit(base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAPklEQVQYlcXQsQ0AIAhE0b//GgzDWGdjDCJoKck13CsIALi7gJxyVmFmyrsXLHEHD7zBmBbezvoJm4cL0OwYouM4O3J+UDYAAAAASUVORK5CYII='));
		}
	}
	
	// I'm not sure this function is really needed...
	function ls($path, $show_folders = false, $show_hidden = false) {
		global $_self, $_total, $_total_size;
		$ls = array();
		$ls_d = array();
		if (($dh = @opendir($path)) === false) return $ls;
		if (substr($path, -1) != '/') $path .= '/';
		while (($file = readdir($dh)) !== false) {
			if ($file == $_self) continue;
			if ($file == '.' || $file == '..') continue;
			if (!$show_hidden) if (substr($file, 0, 1) == '.') continue;
			$isdir = is_dir($path . $file);
			if (!$show_folders && $isdir) continue;
			$item = array('name' => $file, 'isdir' => $isdir, 'size' => $isdir ? 0 : filesize($path . $file), 'time' => filemtime($path . $file));
			if ($isdir) $ls_d[] = $item; else $ls[] = $item;
			$_total++;
			$_total_size += $item['size'];
		}
		return array_merge($ls_d, $ls);
	}
	
	// Get the list of files
	$items = ls('.' . (empty($_browse) ? '' : '/' . $_browse), $showDirectories, $showHiddenFiles);
	
	// Sort it
	function sortByName($a, $b) { return ($a['isdir'] == $b['isdir'] ? strtolower($a['name']) > strtolower($b['name']) : $a['isdir'] < $b['isdir']); }
	function sortBySize($a, $b) { return ($a['isdir'] == $b['isdir'] ? $a['size'] > $b['size'] : $a['isdir'] < $b['isdir']); }
	function sortByTime($a, $b) { return ($a['time'] > $b['time']); }
	switch (@$_GET['s']) {
		case 'size': $_sort = 'size'; usort($items, 'sortBySize'); break;
		case 'time': $_sort = 'time'; usort($items, 'sortByTime'); break;
		default    : $_sort = 'name'; usort($items, 'sortByName'); break;
	}
	
	// Reverse?
	$_sort_reverse = (@$_GET['r'] == '1');
	if ($_sort_reverse) $items = array_reverse($items);
	
	// Add parent
	if ($showParent && $_path != '/' && empty($_browse)) array_unshift($items, array(
		'name' => '..',
		'isparent' => true,
		'isdir' => true,
		'size' => 0,
		'time' => 0
	));
	// Add parent in case of browsing a sub-folder
	if (!empty($_browse)) array_unshift($items, array(
		'name' => '..',
		'isparent' => false,
		'isdir' => true,
		'size' => 0,
		'time' => 0
	));
	
	// 37.6 MB is better than 39487001
	function humanizeFilesize($val, $round = 0) {
		$unit = array('','K','M','G','T','P','E','Z','Y');
		do { $val /= 1024; array_shift($unit); } while ($val >= 1000);
		return sprintf('%.'.intval($round).'f', $val) . ' ' . array_shift($unit) . 'B';
	}
	
	// Titles parser
	function getTitle($title) {
		global $_path, $_total, $_total_size, $sizeDecimals;
		return str_replace(array('{{path}}', '{{files}}', '{{size}}'), array($_path, $_total, humanizeFilesize($_total_size, $sizeDecimals)), $title);
	}
	
	// Link builder
	function buildLink($changes) {
		global $_self;
		$params = $_GET;
		foreach ($changes as $k => $v) if (is_null($v)) unset($params[$k]); else $params[$k] = $v;
		foreach ($params as $k => $v) $params[$k] = urlencode($k) . '=' . urlencode($v);
		return empty($params) ? $_self : $_self . '?' . implode($params, '&');
	}
?>
<!DOCTYPE HTML>
<html lang="en-US">
<head>
	
	<meta charset="UTF-8">
	<meta name="robots" content="<?php echo htmlentities($robots) ?>">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	
	<title><?php echo htmlentities(getTitle($title)) ?></title>
	
	<style type="text/css">
		
		* {
			margin: 0;
			padding: 0;
			border: none;
		}
	
                BODY { background-image:url('test-background.png'); margin: 0em; }	
		body {
			text-align: center;
			font-family: sans-serif;
			font-size: 13px;
			color: #000000;
		}
		
		#wrapper {
			max-width: 600px;
			*width: 600px;
			margin: 0 auto;
			text-align: left;
		}
		
		body#left {
			text-align: left;
		}
		
		body#left #wrapper {
			margin: 0 20px;
		}
		
		h1 {
			font-size: 21px;
			padding: 0 10px;
			margin: 20px 0 0;
			font-weight: bold;
		}
		
		h2 {
			font-size: 14px;
			padding: 0 10px;
			margin: 10px 0 0;
		/*	color: #999999;*/
                        color:black;
	/*		font-weight: normal;*/
   			font-weight: bold;

		}
		
		a {
			text-decoration: none;
		}
		
		ul#header {	
			margin-top: 20px;
		}
		
		ul li {
			display: block;
			list-style-type: none;
			overflow: hidden;
			padding: 10px;
		}
		
		ul li:hover {
			background-color: #f3f3f3;
		}
		
		ul li .date {
			text-align: center;
			width: 120px;
		}
		
		ul li .size {
			text-align: right;
			width: 90px;
		}
		
		ul li .date, ul li .size {
			float: right;
			font-size: 12px;
			display: block;
			color: #666666;
		}
		
		ul#header li {
			font-size: 11px;
			font-weight: bold;
			border-bottom: 1px solid #cccccc;
		}
		
		ul#header li:hover {
			background-color: transparent;
		}
		
		ul#header li * {
			color: #000000;
			font-size: 11px;
		}
		
		ul#header li a:hover {
			color: #666666;
		}
		
		ul#header li .asc span, ul#header li .desc span {
			padding-right: 15px;
			background-position: right center;
			background-repeat: no-repeat;
		}
		
		ul#header li .asc span {
			background-image: url('<?php echo $_self ?>?i=asc');
		}
		
		ul#header li .desc span {
			background-image: url('<?php echo $_self ?>?i=desc');
		}
		
		ul li.item {
			border-top: 1px solid #f3f3f3;
		}
		
		ul li.item:first-child {
			border-top: none;
		}
		
		ul li.item .name {
			color: #003399;
			font-weight: bold;
		}
		
		ul li.item .name:hover {
			color: #0066cc;
		}
		
		ul li.item a:hover {
			text-decoration: underline;
		}
		
		ul li.item .directory, ul li.item .file {
			padding-left: 20px;
			background-position: left center;
			background-repeat: no-repeat;
		}
		
		ul li.item .directory {
			background-image: url('<?php echo $_self ?>?i=directory');
		}
		
		ul li.item .file {
			background-image: url('<?php echo $_self ?>?i=file');
		}
		
		#footer {
			color: #cccccc;
			font-size: 11px;
			margin-top: 40px;
			margin-bottom: 20px;
			padding: 0 10px;
			text-align: left;
		}
		
		#footer a {
			color: #cccccc;
			font-weight: bold;
		}
		
		#footer a:hover {
			color: #999999;
		}
		
	</style>
	
</head>
<body <?php if ($alignment == 'left') echo 'id="left"' ?>>

	<div id="wrapper">
		
		<h1><?php echo htmlentities(getTitle($title)) ?></h1>
		<h2><?php echo htmlentities(getTitle($subtitle)) ?></h2>
		
		<ul id="header">
			
			<li>
				<a href="<?php echo buildLink(array('s' => 'size', 'r' => (!$_sort_reverse && $_sort == 'size') ? '1' : null)) ?>" class="size <?php if ($_sort == 'size') echo $_sort_reverse ? 'desc' : 'asc' ?>"><span>Size</span></a>
				<a href="<?php echo buildLink(array('s' => 'time', 'r' => (!$_sort_reverse && $_sort == 'time') ? '1' : null)) ?>" class="date <?php if ($_sort == 'time') echo $_sort_reverse ? 'desc' : 'asc' ?>"><span>Last modified</span></a>
				<a href="<?php echo buildLink(array('s' =>  null , 'r' => (!$_sort_reverse && $_sort == 'name') ? '1' : null)) ?>" class="name <?php if ($_sort == 'name') echo $_sort_reverse ? 'desc' : 'asc' ?>"><span>Name</span></a>
			</li>
			
		</ul>
		
		<ul>
			
			<?php foreach ($items as $item): ?>
                              <?php   if ($item['name'] != 'test-background.png') { ?>
				<li class="item">
				
					<span class="size"><?php echo $item['isdir'] ? '-' : humanizeFilesize($item['size'], $sizeDecimals) ?></span>
					
					<span class="date"><?php echo (@$item['isparent'] || empty($item['time'])) ? '-' : date($dateFormat, $item['time']) ?></span>
					
					<?php
						if ($item['isdir'] && $browseDirectories && !@$item['isparent']) {
							if ($item['name'] == '..') {
								$itemURL = buildLink(array('b' => substr($_browse, 0, strrpos($_browse, '/'))));
							} else {
								$itemURL = buildLink(array('b' => (empty($_browse) ? '' : (string)$_browse . '/') . $item['name']));
							}
						} else {
							$itemURL = (empty($_browse) ? '' : (string)$_browse . '/') . $item['name'];
						}
					?>
					
					<a href="<?php echo htmlentities($itemURL) ?>" class="name <?php if ($showIcons) echo $item['isdir'] ? 'directory' : 'file' ?>"><?php echo htmlentities($item['name']) . ($item['isdir'] ? ' /' : '') ?></a>
					
				</li>
                              <?php  } //End if ?>
			<?php endforeach; ?>
			
		</ul>
		             <?php 
                                     if ($debug_v3test) {
                                           print '************The array values are****************'.'<br>';
			                   print_r($items); //For testing
                                           print '<br>'.'************************************************'.'<br>';
                                         }
                             ?>
		<?php if ($showFooter): ?>
			
			<p id="footer">
			 Experimental space indexer
			</p>
			
		<?php endif; ?>
		
	</div>
	
</body>
</html>