core/fm2/simple-file-manager/index.php

495 lines
19 KiB
PHP

<?php
/********************************
Simple PHP File Manager
Copyright John Campbell (jcampbell1)
Liscense: MIT
********************************/
//Disable error report for undefined superglobals
error_reporting( error_reporting() & ~E_NOTICE );
//Security options
$allow_delete = true; // Set to false to disable delete button and delete POST request.
$allow_upload = true; // Set to true to allow upload files
$allow_create_folder = true; // Set to false to disable folder creation
$allow_direct_link = true; // Set to false to only allow downloads and not direct link
$allow_show_folders = true; // Set to false to hide all subdirectories
$disallowed_patterns = ['*.php']; // must be an array. Matching files not allowed to be uploaded
$hidden_patterns = ['*.php','.*']; // Matching files hidden in directory index
$PASSWORD = ''; // Set the password, to access the file manager... (optional)
if($PASSWORD) {
session_start();
if(!$_SESSION['_sfm_allowed']) {
// sha1, and random bytes to thwart timing attacks. Not meant as secure hashing.
$t = bin2hex(openssl_random_pseudo_bytes(10));
if($_POST['p'] && sha1($t.$_POST['p']) === sha1($t.$PASSWORD)) {
$_SESSION['_sfm_allowed'] = true;
header('Location: ?');
}
echo '<html><body><form action=? method=post>PASSWORD:<input type=password name=p autofocus/></form></body></html>';
exit;
}
}
// must be in UTF-8 or `basename` doesn't work
setlocale(LC_ALL,'en_US.UTF-8');
$tmp_dir = dirname($_SERVER['SCRIPT_FILENAME']);
if(DIRECTORY_SEPARATOR==='\\') $tmp_dir = str_replace('/',DIRECTORY_SEPARATOR,$tmp_dir);
$tmp = get_absolute_path($tmp_dir . '/' .$_REQUEST['file']);
if($tmp === false)
err(404,'File or Directory Not Found');
if(substr($tmp, 0,strlen($tmp_dir)) !== $tmp_dir)
err(403,"Forbidden");
if(strpos($_REQUEST['file'], DIRECTORY_SEPARATOR) === 0)
err(403,"Forbidden");
if(preg_match('@^.+://@',$_REQUEST['file'])) {
err(403,"Forbidden");
}
if(!$_COOKIE['_sfm_xsrf'])
setcookie('_sfm_xsrf',bin2hex(openssl_random_pseudo_bytes(16)));
if($_POST) {
if($_COOKIE['_sfm_xsrf'] !== $_POST['xsrf'] || !$_POST['xsrf'])
err(403,"XSRF Failure");
}
$file = $_REQUEST['file'] ?: '.';
if($_GET['do'] == 'list') {
if (is_dir($file)) {
$directory = $file;
$result = [];
$files = array_diff(scandir($directory), ['.','..']);
foreach ($files as $entry) if (!is_entry_ignored($entry, $allow_show_folders, $hidden_patterns)) {
$i = $directory . '/' . $entry;
$stat = stat($i);
$result[] = [
'mtime' => $stat['mtime'],
'size' => $stat['size'],
'name' => basename($i),
'path' => preg_replace('@^\./@', '', $i),
'is_dir' => is_dir($i),
'is_deleteable' => $allow_delete && ((!is_dir($i) && is_writable($directory)) ||
(is_dir($i) && is_writable($directory) && is_recursively_deleteable($i))),
'is_readable' => is_readable($i),
'is_writable' => is_writable($i),
'is_executable' => is_executable($i),
];
}
usort($result,function($f1,$f2){
$f1_key = ($f1['is_dir']?:2) . $f1['name'];
$f2_key = ($f2['is_dir']?:2) . $f2['name'];
return $f1_key > $f2_key;
});
} else {
err(412,"Not a Directory");
}
echo json_encode(['success' => true, 'is_writable' => is_writable($file), 'results' =>$result]);
exit;
} elseif ($_POST['do'] == 'delete') {
if($allow_delete) {
rmrf($file);
}
exit;
} elseif ($_POST['do'] == 'mkdir' && $allow_create_folder) {
// don't allow actions outside root. we also filter out slashes to catch args like './../outside'
$dir = $_POST['name'];
$dir = str_replace('/', '', $dir);
if(substr($dir, 0, 2) === '..')
exit;
chdir($file);
@mkdir($_POST['name']);
exit;
} elseif ($_POST['do'] == 'upload' && $allow_upload) {
foreach($disallowed_patterns as $pattern)
if(fnmatch($pattern, $_FILES['file_data']['name']))
err(403,"Files of this type are not allowed.");
$res = move_uploaded_file($_FILES['file_data']['tmp_name'], $file.'/'.$_FILES['file_data']['name']);
exit;
} elseif ($_GET['do'] == 'download') {
foreach($disallowed_patterns as $pattern)
if(fnmatch($pattern, $file))
err(403,"Files of this type are not allowed.");
$filename = basename($file);
$finfo = finfo_open(FILEINFO_MIME_TYPE);
header('Content-Type: ' . finfo_file($finfo, $file));
header('Content-Length: '. filesize($file));
header(sprintf('Content-Disposition: attachment; filename=%s',
strpos('MSIE',$_SERVER['HTTP_REFERER']) ? rawurlencode($filename) : "\"$filename\"" ));
ob_flush();
readfile($file);
exit;
}
function is_entry_ignored($entry, $allow_show_folders, $hidden_patterns) {
if ($entry === basename(__FILE__)) {
return true;
}
if (is_dir($entry) && !$allow_show_folders) {
return true;
}
foreach($hidden_patterns as $pattern) {
if(fnmatch($pattern,$entry)) {
return true;
}
}
return false;
}
function rmrf($dir) {
if(is_dir($dir)) {
$files = array_diff(scandir($dir), ['.','..']);
foreach ($files as $file)
rmrf("$dir/$file");
rmdir($dir);
} else {
unlink($dir);
}
}
function is_recursively_deleteable($d) {
$stack = [$d];
while($dir = array_pop($stack)) {
if(!is_readable($dir) || !is_writable($dir))
return false;
$files = array_diff(scandir($dir), ['.','..']);
foreach($files as $file) if(is_dir($file)) {
$stack[] = "$dir/$file";
}
}
return true;
}
// from: http://php.net/manual/en/function.realpath.php#84012
function get_absolute_path($path) {
$path = str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $path);
$parts = explode(DIRECTORY_SEPARATOR, $path);
$absolutes = [];
foreach ($parts as $part) {
if ('.' == $part) continue;
if ('..' == $part) {
array_pop($absolutes);
} else {
$absolutes[] = $part;
}
}
return implode(DIRECTORY_SEPARATOR, $absolutes);
}
function err($code,$msg) {
http_response_code($code);
header("Content-Type: application/json");
echo json_encode(['error' => ['code'=>intval($code), 'msg' => $msg]]);
exit;
}
function asBytes($ini_v) {
$ini_v = trim($ini_v);
$s = ['g'=> 1<<30, 'm' => 1<<20, 'k' => 1<<10];
return intval($ini_v) * ($s[strtolower(substr($ini_v,-1))] ?: 1);
}
$MAX_UPLOAD_SIZE = min(asBytes(ini_get('post_max_size')), asBytes(ini_get('upload_max_filesize')));
?>
<!DOCTYPE html>
<html><head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<style>
body {font-family: "lucida grande","Segoe UI",Arial, sans-serif; font-size: 14px;width:1024;padding:1em;margin:0;}
th {font-weight: normal; color: #1F75CC; background-color: #F0F9FF; padding:.5em 1em .5em .2em;
text-align: left;cursor:pointer;user-select: none;}
th .indicator {margin-left: 6px }
thead {border-top: 1px solid #82CFFA; border-bottom: 1px solid #96C4EA;border-left: 1px solid #E7F2FB;
border-right: 1px solid #E7F2FB; }
#top {height:52px;}
#mkdir {display:inline-block;float:right;padding-top:16px;}
label { display:block; font-size:11px; color:#555;}
#file_drop_target {width:500px; padding:12px 0; border: 4px dashed #ccc;font-size:12px;color:#ccc;
text-align: center;float:right;margin-right:20px;}
#file_drop_target.drag_over {border: 4px dashed #96C4EA; color: #96C4EA;}
#upload_progress {padding: 4px 0;}
#upload_progress .error {color:#a00;}
#upload_progress > div { padding:3px 0;}
.no_write #mkdir, .no_write #file_drop_target {display: none}
.progress_track {display:inline-block;width:200px;height:10px;border:1px solid #333;margin: 0 4px 0 10px;}
.progress {background-color: #82CFFA;height:10px; }
footer {font-size:11px; color:#bbbbc5; padding:4em 0 0;text-align: left;}
footer a, footer a:visited {color:#bbbbc5;}
#breadcrumb { padding-top:34px; font-size:15px; color:#aaa;display:inline-block;float:left;}
#folder_actions {width: 50%;float:right;}
a, a:visited { color:#00c; text-decoration: none}
a:hover {text-decoration: underline}
.sort_hide{ display:none;}
table {border-collapse: collapse;width:100%;}
thead {max-width: 1024px}
td { padding:.2em 1em .2em .2em; border-bottom:1px solid #def;height:30px; font-size:12px;white-space: nowrap;}
td.first {font-size:14px;white-space: normal;}
td.empty { color:#777; font-style: italic; text-align: center;padding:3em 0;}
.is_dir .size {color:transparent;font-size:0;}
.is_dir .size:before {content: "--"; font-size:14px;color:#333;}
.is_dir .download{visibility: hidden}
a.delete {display:inline-block;
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAADtSURBVHjajFC7DkFREJy9iXg0t+EHRKJDJSqRuIVaJT7AF+jR+xuNRiJyS8WlRaHWeOU+kBy7eyKhs8lkJrOzZ3OWzMAD15gxYhB+yzAm0ndez+eYMYLngdkIf2vpSYbCfsNkOx07n8kgWa1UpptNII5VR/M56Nyt6Qq33bbhQsHy6aR0WSyEyEmiCG6vR2ffB65X4HCwYC2e9CTjJGGok4/7Hcjl+ImLBWv1uCRDu3peV5eGQ2C5/P1zq4X9dGpXP+LYhmYz4HbDMQgUosWTnmQoKKf0htVKBZvtFsx6S9bm48ktaV3EXwd/CzAAVjt+gHT5me0AAAAASUVORK5CYII=) no-repeat scroll 0 2px;
color:#d00; margin-left: 15px;font-size:11px;padding:0 0 0 13px;
}
.name {
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAABAklEQVRIie2UMW6DMBSG/4cYkJClIhauwMgx8CnSC9EjJKcwd2HGYmAwEoMREtClEJxYakmcoWq/yX623veebZmWZcFKWZbXyTHeOeeXfWDN69/uzPP8x1mVUmiaBlLKsxACAC6cc2OPd7zYK1EUYRgGZFkG3/fPAE5fIjcCAJimCXEcGxKnAiICERkSIcQmeVoQhiHatoWUEkopJEkCAB/r+t0lHyVN023c9z201qiq6s2ZYA9jDIwx1HW9xZ4+Ihta69cK9vwLvsX6ivYf4FGIyJj/rg5uqwccd2Ar7OUdOL/kPyKY5/mhZJ53/2asgiAIHhLYMARd16EoCozj6EzwCYrrX5dC9FQIAAAAAElFTkSuQmCC) no-repeat scroll 0px 12px;
padding:15px 0 10px 40px;
}
.is_dir .name {
background: url(data:image/png;base64,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) no-repeat scroll 0px 10px;
padding:15px 0 10px 40px;
}
.download {
background: url(data:image/png;base64,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) no-repeat scroll 0px 5px;
padding:4px 0 4px 20px;
}
</style>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script>
(function($){
$.fn.tablesorter = function() {
var $table = this;
this.find('th').click(function() {
var idx = $(this).index();
var direction = $(this).hasClass('sort_asc');
$table.tablesortby(idx,direction);
});
return this;
};
$.fn.tablesortby = function(idx,direction) {
var $rows = this.find('tbody tr');
function elementToVal(a) {
var $a_elem = $(a).find('td:nth-child('+(idx+1)+')');
var a_val = $a_elem.attr('data-sort') || $a_elem.text();
return (a_val == parseInt(a_val) ? parseInt(a_val) : a_val);
}
$rows.sort(function(a,b){
var a_val = elementToVal(a), b_val = elementToVal(b);
return (a_val > b_val ? 1 : (a_val == b_val ? 0 : -1)) * (direction ? 1 : -1);
})
this.find('th').removeClass('sort_asc sort_desc');
$(this).find('thead th:nth-child('+(idx+1)+')').addClass(direction ? 'sort_desc' : 'sort_asc');
for(var i =0;i<$rows.length;i++)
this.append($rows[i]);
this.settablesortmarkers();
return this;
}
$.fn.retablesort = function() {
var $e = this.find('thead th.sort_asc, thead th.sort_desc');
if($e.length)
this.tablesortby($e.index(), $e.hasClass('sort_desc') );
return this;
}
$.fn.settablesortmarkers = function() {
this.find('thead th span.indicator').remove();
this.find('thead th.sort_asc').append('<span class="indicator">&darr;<span>');
this.find('thead th.sort_desc').append('<span class="indicator">&uarr;<span>');
return this;
}
})(jQuery);
$(function(){
var XSRF = (document.cookie.match('(^|; )_sfm_xsrf=([^;]*)')||0)[2];
var MAX_UPLOAD_SIZE = <?php echo $MAX_UPLOAD_SIZE ?>;
var $tbody = $('#list');
$(window).on('hashchange',list).trigger('hashchange');
$('#table').tablesorter();
$('#table').on('click','.delete',function(data) {
$.post("",{'do':'delete',file:$(this).attr('data-file'),xsrf:XSRF},function(response){
list();
},'json');
return false;
});
$('#mkdir').submit(function(e) {
var hashval = decodeURIComponent(window.location.hash.substr(1)),
$dir = $(this).find('[name=name]');
e.preventDefault();
$dir.val().length && $.post('?',{'do':'mkdir',name:$dir.val(),xsrf:XSRF,file:hashval},function(data){
list();
},'json');
$dir.val('');
return false;
});
<?php if($allow_upload): ?>
// file upload stuff
$('#file_drop_target').on('dragover',function(){
$(this).addClass('drag_over');
return false;
}).on('dragend',function(){
$(this).removeClass('drag_over');
return false;
}).on('drop',function(e){
e.preventDefault();
var files = e.originalEvent.dataTransfer.files;
$.each(files,function(k,file) {
uploadFile(file);
});
$(this).removeClass('drag_over');
});
$('input[type=file]').change(function(e) {
e.preventDefault();
$.each(this.files,function(k,file) {
uploadFile(file);
});
});
function uploadFile(file) {
var folder = decodeURIComponent(window.location.hash.substr(1));
if(file.size > MAX_UPLOAD_SIZE) {
var $error_row = renderFileSizeErrorRow(file,folder);
$('#upload_progress').append($error_row);
window.setTimeout(function(){$error_row.fadeOut();},5000);
return false;
}
var $row = renderFileUploadRow(file,folder);
$('#upload_progress').append($row);
var fd = new FormData();
fd.append('file_data',file);
fd.append('file',folder);
fd.append('xsrf',XSRF);
fd.append('do','upload');
var xhr = new XMLHttpRequest();
xhr.open('POST', '?');
xhr.onload = function() {
$row.remove();
list();
};
xhr.upload.onprogress = function(e){
if(e.lengthComputable) {
$row.find('.progress').css('width',(e.loaded/e.total*100 | 0)+'%' );
}
};
xhr.send(fd);
}
function renderFileUploadRow(file,folder) {
return $row = $('<div/>')
.append( $('<span class="fileuploadname" />').text( (folder ? folder+'/':'')+file.name))
.append( $('<div class="progress_track"><div class="progress"></div></div>') )
.append( $('<span class="size" />').text(formatFileSize(file.size)) )
};
function renderFileSizeErrorRow(file,folder) {
return $row = $('<div class="error" />')
.append( $('<span class="fileuploadname" />').text( 'Error: ' + (folder ? folder+'/':'')+file.name))
.append( $('<span/>').html(' file size - <b>' + formatFileSize(file.size) + '</b>'
+' exceeds max upload size of <b>' + formatFileSize(MAX_UPLOAD_SIZE) + '</b>') );
}
<?php endif; ?>
function list() {
var hashval = window.location.hash.substr(1);
$.get('?do=list&file='+ hashval,function(data) {
$tbody.empty();
$('#breadcrumb').empty().html(renderBreadcrumbs(hashval));
if(data.success) {
$.each(data.results,function(k,v){
$tbody.append(renderFileRow(v));
});
!data.results.length && $tbody.append('<tr><td class="empty" colspan=5>This folder is empty</td></tr>')
data.is_writable ? $('body').removeClass('no_write') : $('body').addClass('no_write');
} else {
console.warn(data.error.msg);
}
$('#table').retablesort();
},'json');
}
function renderFileRow(data) {
var $link = $('<a class="name" />')
.attr('href', data.is_dir ? '#' + encodeURIComponent(data.path) : './' + data.path)
.text(data.name);
var allow_direct_link = <?php echo $allow_direct_link?'true':'false'; ?>;
if (!data.is_dir && !allow_direct_link) $link.css('pointer-events','none');
var $dl_link = $('<a/>').attr('href','?do=download&file='+ encodeURIComponent(data.path))
.addClass('download').text('download');
var $delete_link = $('<a href="#" />').attr('data-file',data.path).addClass('delete').text('delete');
var perms = [];
if(data.is_readable) perms.push('read');
if(data.is_writable) perms.push('write');
if(data.is_executable) perms.push('exec');
var $html = $('<tr />')
.addClass(data.is_dir ? 'is_dir' : '')
.append( $('<td class="first" />').append($link) )
.append( $('<td/>').attr('data-sort',data.is_dir ? -1 : data.size)
.html($('<span class="size" />').text(formatFileSize(data.size))) )
.append( $('<td/>').attr('data-sort',data.mtime).text(formatTimestamp(data.mtime)) )
.append( $('<td/>').text(perms.join('+')) )
.append( $('<td/>').append($dl_link).append( data.is_deleteable ? $delete_link : '') )
return $html;
}
function renderBreadcrumbs(path) {
var base = "",
$html = $('<div/>').append( $('<a href=#>Home</a></div>') );
$.each(path.split('%2F'),function(k,v){
if(v) {
var v_as_text = decodeURIComponent(v);
$html.append( $('<span/>').text(' ▸ ') )
.append( $('<a/>').attr('href','#'+base+v).text(v_as_text) );
base += v + '%2F';
}
});
return $html;
}
function formatTimestamp(unix_timestamp) {
var m = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
var d = new Date(unix_timestamp*1000);
return [m[d.getMonth()],' ',d.getDate(),', ',d.getFullYear()," ",
(d.getHours() % 12 || 12),":",(d.getMinutes() < 10 ? '0' : '')+d.getMinutes(),
" ",d.getHours() >= 12 ? 'PM' : 'AM'].join('');
}
function formatFileSize(bytes) {
var s = ['bytes', 'KB','MB','GB','TB','PB','EB'];
for(var pos = 0;bytes >= 1000; pos++,bytes /= 1024);
var d = Math.round(bytes*10);
return pos ? [parseInt(d/10),".",d%10," ",s[pos]].join('') : bytes + ' bytes';
}
})
</script>
</head><body>
<div id="top">
<?php if($allow_create_folder): ?>
<form action="?" method="post" id="mkdir" />
<label for=dirname>Create New Folder</label><input id=dirname type=text name=name value="" />
<input type="submit" value="create" />
</form>
<?php endif; ?>
<?php if($allow_upload): ?>
<div id="file_drop_target">
Drag Files Here To Upload
<b>or</b>
<input type="file" multiple />
</div>
<?php endif; ?>
<div id="breadcrumb">&nbsp;</div>
</div>
<div id="upload_progress"></div>
<table id="table"><thead><tr>
<th>Name</th>
<th>Size</th>
<th>Modified</th>
<th>Permissions</th>
<th>Actions</th>
</tr></thead><tbody id="list">
</tbody></table>
<footer>simple php filemanager by <a href="https://github.com/jcampbell1">jcampbell1</a></footer>
</body></html>