ifm_ynh/sources/ifm.php

<?php
/* =======================================================================
 * Improved File Manager
 * ---------------------
 * License: This project is provided under the terms of the MIT LICENSE
 * http://github.com/misterunknown/ifm/blob/master/LICENSE
 * =======================================================================
 *
 * main
*/

error_reporting(E_ALL);
ini_set('display_errors', 0);

class IFMException extends Exception {
	public $forUser = true;
	public function __construct($message, $forUser = true, $code = 0, Exception $previous = null) {
		$this->forUser = $forUser;
		parent::__construct($message, $code, $previous);
	}
}

class IFM {
	private $defaultconfig = [
		// general config
		"auth" => 0,
		"auth_source" => 'inline;admin:$2y$10$0Bnm5L4wKFHRxJgNq.oZv.v7yXhkJZQvinJYR2p6X1zPvzyDRUVRC',
		"auth_ignore_basic" => 0,
		"root_dir" => "",
		"root_public_url" => "",
		"tmp_dir" => "",
		"timezone" => "",
		"forbiddenChars" => [],
		"dateLocale" => "en-US",
		"language" => "en",
		"selfoverwrite" => 0,
		"session_name" => false,

		// api controls
		"ajaxrequest" => 1,
		"chmod" => 1,
		"copymove" => 1,
		"createdir" => 1,
		"createfile" => 1,
		"edit" => 1,
		"delete" => 1,
		"download" => 1,
		"extract" => 1,
		"upload" => 1,
		"remoteupload" => 1,
		"rename" => 1,
		"zipnload" => 1,
		"createarchive" => 1,
		"search" => 1,
		"paging" => 0,
		"pageLength" => 50,

		// gui controls
		"showlastmodified" => 0,
		"showfilesize" => 1,
		"showowner" => 1,
		"showgroup" => 1,
		"showpermissions" => 2,
		"showhtdocs" => 0,
		"showhiddenfiles" => 1,
		"showpath" => 0,
		"contextmenu" => 1,
		"disable_mime_detection" => 0,
		"showrefresh" => 1,
		"forceproxy" => 0,
		"confirmoverwrite" => 1
	];

	private $config = [];
	private $templates = [];
	private $i18n = [];
	public $mode = "standalone";

	public function __construct($config=[]) {
		// store initial working directory
		$this->initialWD = getcwd();

		// load the default config
		$this->config = $this->defaultconfig;

		// load config from environment variables
		foreach (array_keys($this->config) as $key) {
			if (($value = getenv('IFM_' . strtoupper($key))) !== false) {
				if (is_numeric($value))
					$value = intval($value);
				$this->config[$key] = $value;
			}
		}

		// load config from passed array
		$this->config = array_merge($this->config, $config);

		$i18n = [];
		$i18n["en"] = <<<'f00bar'
{
    "ajax_request": "AJAX request",
    "archive_create_error": "Could not create archive.",
    "archive_create_success": "Archive created.",
    "archive_invalid_format": "Invalid archive format given.",
    "archivename": "Name of the archive",
    "cancel": "Cancel",
    "close": "Close",
    "copy": "Copy",
    "copy_error": "The following files could not be copied:",
    "copy_success": "Files copied.",
    "copylink": "Copy link",
    "create": "Create",
    "create_archive": "Create archive",
    "create_wo_close": "Create w/o close",
    "data": "Data",
    "delete": "Delete",
    "directoryname": "Directory Name",
    "download": "Download",
    "edit": "Edit",
    "editor_options": "Editor Options",
    "error": "Error:",
    "extract": "Extract",
    "extract_error": "Could not extract archive.",
    "extract_filename": "Extract file:",
    "extract_success": "Archive extracted.",
    "file_copy_to": "to",
    "file_delete_confirm": "Do you really want to delete the following file:",
    "file_delete_error": "Could not delete files.",
    "file_delete_success": "Files deleted.",
    "file_display_error": "This file cannot be displayed or edited.",
    "file_load_error": "Could not load content.",
    "file_new": "New file",
    "file_no_permission": "No permission to edit/create file.",
    "file_not_found": "Could either not find or open file.",
    "file_open_error": "Could not open the file.",
    "file_rename": "Rename File",
    "file_rename_error": "File could not be renamed",
    "file_rename_success": "File renamed.",
    "file_save_confirm": "Do you want to save the following file:",
    "file_save_error": "Could not save file.",
    "file_save_success": "File saved.",
    "file_upload_error": "Could not upload file.",
    "file_upload_success": "File uploaded.",
    "filename": "Filename",
    "filename_new": "New Filename",
    "filename_slashes": "Remove all slashes from the filename.",
    "filter": "Filter",
    "folder_create_error": "Could not create directory:",
    "folder_create_success": "Directory created.",
    "folder_new": "New Folder",
    "folder_not_found": "Could not find the directory.",
    "folder_tree_load_error": "Could not fetch folder tree.",
    "footer": "IFM - improved file manager | ifm.php hidden |",
    "general_error": "General error: No or broken response.",
    "github": "Visit the project on GitHub",
    "group": "Group",
    "invalid_action": "Invalid action given.",
    "invalid_archive_format": "Invalid archive format given. Possible formats are ZIP, TAR, tar.gz or tar.bz2.",
    "invalid_data": "Invalid data from server.",
    "invalid_dir": "Invalid directory given.",
    "invalid_filename": "Invalid filename given.",
    "invalid_params": "Invalid parameter given.",
    "invalid_url": "Invalid URL given.",
    "json_encode_error": "Could not format the response as JSON:",
    "last_modified": "Last Modified",
    "load_config_error": "Could not load configuration.",
    "load_template_error": "Could not load templates.",
    "load_text_error": "Could not load texts.",
    "login": "Login",
    "login_failed": "Login failed.",
    "logout": "Log Off",
    "method": "Method",
    "move": "Move",
    "move_error": "The following files could not be moved:",
    "move_success": "Files moved.",
    "nopermissions": "You lack the permissions to do that.",
    "options": "Options",
    "owner": "Owner",
    "password": "Password",
    "path_content": "Current directory",
    "pattern_error_slashes": "Pattern cannot contain slashes.",
    "permission_change_error": "Could not change permissions:",
    "permission_change_success": "Permissions changed.",
    "permission_parse_error": "Could not parse permissions.",
    "permissions": "Permissions",
    "refresh": "Refresh",
    "remaining_tasks": "There are remaining tasks. Do you really want to reload?",
    "rename": "Rename",
    "rename_filename": "Rename file:",
    "request": "Request",
    "response": "Response",
    "save": "Save",
    "save_wo_close": "Save without Closing",
    "search": "Search",
    "search_pattern": "Pattern",
    "select_destination": "Select Destination",
    "size": "Size",
    "soft_tabs": "Soft Tabs",
    "tab_size": "Tab Size",
    "tasks": "Tasks",
    "toggle_nav": "Toggle navigation",
    "upload": "Upload",
    "upload_drop": "Drop files to upload",
    "upload_file": "Upload File",
    "upload_overwrite_confirm": "Upload anyway?",
    "upload_overwrite_hint": "The following files will be overwritten:",
    "upload_remote": "Remote Upload",
    "upload_remote_url": "Remote Upload URL",
    "username": "Username",
    "word_wrap": "Word Wrap"
}

f00bar;
$i18n["en"] = json_decode( $i18n["en"], true );
$i18n["en"] = <<<'f00bar'
{
    "ajax_request": "AJAX request",
    "archive_create_error": "Could not create archive.",
    "archive_create_success": "Archive created.",
    "archive_invalid_format": "Invalid archive format given.",
    "archivename": "Name of the archive",
    "cancel": "Cancel",
    "close": "Close",
    "copy": "Copy",
    "copy_error": "The following files could not be copied:",
    "copy_success": "Files copied.",
    "copylink": "Copy link",
    "create": "Create",
    "create_archive": "Create archive",
    "create_wo_close": "Create w/o close",
    "data": "Data",
    "delete": "Delete",
    "directoryname": "Directory Name",
    "download": "Download",
    "edit": "Edit",
    "editor_options": "Editor Options",
    "error": "Error:",
    "extract": "Extract",
    "extract_error": "Could not extract archive.",
    "extract_filename": "Extract file:",
    "extract_success": "Archive extracted.",
    "file_copy_to": "to",
    "file_delete_confirm": "Do you really want to delete the following file:",
    "file_delete_error": "Could not delete files.",
    "file_delete_success": "Files deleted.",
    "file_display_error": "This file cannot be displayed or edited.",
    "file_load_error": "Could not load content.",
    "file_new": "New file",
    "file_no_permission": "No permission to edit/create file.",
    "file_not_found": "Could either not find or open file.",
    "file_open_error": "Could not open the file.",
    "file_rename": "Rename File",
    "file_rename_error": "File could not be renamed",
    "file_rename_success": "File renamed.",
    "file_save_confirm": "Do you want to save the following file:",
    "file_save_error": "Could not save file.",
    "file_save_success": "File saved.",
    "file_upload_error": "Could not upload file.",
    "file_upload_success": "File uploaded.",
    "filename": "Filename",
    "filename_new": "New Filename",
    "filename_slashes": "Remove all slashes from the filename.",
    "filter": "Filter",
    "folder_create_error": "Could not create directory:",
    "folder_create_success": "Directory created.",
    "folder_new": "New Folder",
    "folder_not_found": "Could not find the directory.",
    "folder_tree_load_error": "Could not fetch folder tree.",
    "footer": "IFM - improved file manager | ifm.php hidden |",
    "general_error": "General error: No or broken response.",
    "github": "Visit the project on GitHub",
    "group": "Group",
    "invalid_action": "Invalid action given.",
    "invalid_archive_format": "Invalid archive format given. Possible formats are ZIP, TAR, tar.gz or tar.bz2.",
    "invalid_data": "Invalid data from server.",
    "invalid_dir": "Invalid directory given.",
    "invalid_filename": "Invalid filename given.",
    "invalid_params": "Invalid parameter given.",
    "invalid_url": "Invalid URL given.",
    "json_encode_error": "Could not format the response as JSON:",
    "last_modified": "Last Modified",
    "load_config_error": "Could not load configuration.",
    "load_template_error": "Could not load templates.",
    "load_text_error": "Could not load texts.",
    "login": "Login",
    "login_failed": "Login failed.",
    "logout": "Log Off",
    "method": "Method",
    "move": "Move",
    "move_error": "The following files could not be moved:",
    "move_success": "Files moved.",
    "nopermissions": "You lack the permissions to do that.",
    "options": "Options",
    "owner": "Owner",
    "password": "Password",
    "path_content": "Current directory",
    "pattern_error_slashes": "Pattern cannot contain slashes.",
    "permission_change_error": "Could not change permissions:",
    "permission_change_success": "Permissions changed.",
    "permission_parse_error": "Could not parse permissions.",
    "permissions": "Permissions",
    "refresh": "Refresh",
    "remaining_tasks": "There are remaining tasks. Do you really want to reload?",
    "rename": "Rename",
    "rename_filename": "Rename file:",
    "request": "Request",
    "response": "Response",
    "save": "Save",
    "save_wo_close": "Save without Closing",
    "search": "Search",
    "search_pattern": "Pattern",
    "select_destination": "Select Destination",
    "size": "Size",
    "soft_tabs": "Soft Tabs",
    "tab_size": "Tab Size",
    "tasks": "Tasks",
    "toggle_nav": "Toggle navigation",
    "upload": "Upload",
    "upload_drop": "Drop files to upload",
    "upload_file": "Upload File",
    "upload_overwrite_confirm": "Upload anyway?",
    "upload_overwrite_hint": "The following files will be overwritten:",
    "upload_remote": "Remote Upload",
    "upload_remote_url": "Remote Upload URL",
    "username": "Username",
    "word_wrap": "Word Wrap"
}

f00bar;
$i18n["en"] = json_decode( $i18n["en"], true );

		$this->i18n = $i18n;

		if ($this->config['timezone'])
			date_default_timezone_set($this->config['timezone']);

		if ($this->config['session_name'])
			session_name($this->config['session_name']);

		// set cookie_path for SESSION to REQUEST_URI without QUERY_STRING
		$cookie_path = substr($_SERVER['REQUEST_URI'], 0, strpos($_SERVER['REQUEST_URI'], '?') ?: strlen($_SERVER['REQUEST_URI']));
		session_set_cookie_params(0, $cookie_path);
	}

	/**
	 * This function contains the client-side application
	 */
	public function getApplication() {
		$this->getHTMLHeader();
		print '<div id="ifm"></div>';
		$this->getJS();
		print '<script>var ifm = new IFM(); ifm.init("ifm");</script>';
		$this->getHTMLFooter();
	}

	public function getInlineApplication() {
		$this->getCSS();
		print '<div id="ifm"></div>';
		$this->getJS();
	}

	public function getCSS() {
		echo <<<'f00bar'
			<style type="text/css">
/*!
 * Bootstrap v4.6.1 (https://getbootstrap.com/)
 * Copyright 2011-2021 The Bootstrap Authors
 * Copyright 2011-2021 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
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 * This combined file was created by the DataTables downloader builder:
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 *
 * To rebuild or modify this file with the latest versions of the included
 * software please visit:
 *   https://datatables.net/download/#bs4/dt-1.11.3/r-2.2.9
 *
 * Included libraries:
 *  DataTables 1.11.3, Responsive 2.2.9
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  font-family: 'fontello';
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       url('data:application/octet-stream;base64,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
}
/* Chrome hack: SVG is rendered more smooth in Windozze. 100% magic, uncomment if you need it. */
/* Note, that will break hinting! In other OS-es font will be not as sharp as it could be */
/*
@media screen and (-webkit-min-device-pixel-ratio:0) {
  @font-face {
    font-family: 'fontello';
    src: url('../font/fontello.svg?80353264#fontello') format('svg');
  }
}
*/
 
 [class^="icon-"]:before, [class*=" icon-"]:before {
  font-family: "fontello";
  font-style: normal;
  font-weight: normal;
  speak: none;
 
  display: inline-block;
  text-decoration: inherit;
  width: 1em;
  margin-right: .2em;
  text-align: center;
  /* opacity: .8; */
 
  /* For safety - reset parent styles, that can break glyph codes*/
  font-variant: normal;
  text-transform: none;
     
  /* fix buttons height, for twitter bootstrap */
  line-height: 1em;
 
  /* Animation center compensation - margins should be symmetric */
  /* remove if not needed */
  margin-left: .2em;
 
  /* you can be more comfortable with increased icons size */
  /* font-size: 120%; */
 
  /* Uncomment for 3D effect */
  /* text-shadow: 1px 1px 1px rgba(127, 127, 127, 0.3); */
}
.icon-arrows-cw:before { content: '\e800'; } /* '' */
.icon-doc:before { content: '\e801'; } /* '' */
.icon-archive:before { content: '\e802'; } /* '' */
.icon-download:before { content: '\e803'; } /* '' */
.icon-upload:before { content: '\e804'; } /* '' */
.icon-edit:before { content: '\e805'; } /* '' */
.icon-pencil:before { content: '\e806'; } /* '' */
.icon-folder:before { content: '\e807'; } /* '' */
.icon-folder-open:before { content: '\e808'; } /* '' */
.icon-trash-empty:before { content: '\e809'; } /* '' */
.icon-plus:before { content: '\e80a'; } /* '' */
.icon-plus-circled:before { content: '\e80b'; } /* '' */
.icon-minus:before { content: '\e80c'; } /* '' */
.icon-minus-circled:before { content: '\e80d'; } /* '' */
.icon-down-open:before { content: '\e80e'; } /* '' */
.icon-up-open:before { content: '\e80f'; } /* '' */
.icon-wrench:before { content: '\e810'; } /* '' */
.icon-cog-alt:before { content: '\e811'; } /* '' */
.icon-cog:before { content: '\e812'; } /* '' */
.icon-block:before { content: '\e813'; } /* '' */
.icon-attention:before { content: '\e814'; } /* '' */
.icon-squares:before { content: '\e815'; } /* '' */
.icon-logout:before { content: '\e816'; } /* '' */
.icon-globe:before { content: '\e817'; } /* '' */
.icon-search:before { content: '\e818'; } /* '' */
.icon-spin3:before { content: '\e832'; } /* '' */
.icon-spin4:before { content: '\e834'; } /* '' */
.icon-spin5:before { content: '\e838'; } /* '' */
.icon-spin6:before { content: '\e839'; } /* '' */
.icon-link-ext:before { content: '\f08e'; } /* '' */
.icon-docs:before { content: '\f0c5'; } /* '' */
.icon-sort:before { content: '\f0dc'; } /* '' */
.icon-sort-down:before { content: '\f0dd'; } /* '' */
.icon-sort-up:before { content: '\f0de'; } /* '' */
.icon-download-cloud:before { content: '\f0ed'; } /* '' */
.icon-upload-cloud:before { content: '\f0ee'; } /* '' */
.icon-doc-text:before { content: '\f0f6'; } /* '' */
.icon-plus-squared:before { content: '\f0fe'; } /* '' */
.icon-angle-up:before { content: '\f106'; } /* '' */
.icon-angle-down:before { content: '\f107'; } /* '' */
.icon-folder-empty:before { content: '\f114'; } /* '' */
.icon-folder-open-empty:before { content: '\f115'; } /* '' */
.icon-terminal:before { content: '\f120'; } /* '' */
.icon-minus-squared:before { content: '\f146'; } /* '' */
.icon-minus-squared-alt:before { content: '\f147'; } /* '' */
.icon-pencil-squared:before { content: '\f14b'; } /* '' */
.icon-link-ext-alt:before { content: '\f14c'; } /* '' */
.icon-doc-inv:before { content: '\f15b'; } /* '' */
.icon-doc-text-inv:before { content: '\f15c'; } /* '' */
.icon-sort-name-up:before { content: '\f15d'; } /* '' */
.icon-sort-name-down:before { content: '\f15e'; } /* '' */
.icon-sort-alt-up:before { content: '\f160'; } /* '' */
.icon-sort-alt-down:before { content: '\f161'; } /* '' */
.icon-sort-number-up:before { content: '\f162'; } /* '' */
.icon-sort-number-down:before { content: '\f163'; } /* '' */
.icon-plus-squared-alt:before { content: '\f196'; } /* '' */
.icon-language:before { content: '\f1ab'; } /* '' */
.icon-file-pdf:before { content: '\f1c1'; } /* '' */
.icon-file-word:before { content: '\f1c2'; } /* '' */
.icon-file-excel:before { content: '\f1c3'; } /* '' */
.icon-file-powerpoint:before { content: '\f1c4'; } /* '' */
.icon-file-image:before { content: '\f1c5'; } /* '' */
.icon-file-archive:before { content: '\f1c6'; } /* '' */
.icon-file-audio:before { content: '\f1c7'; } /* '' */
.icon-file-video:before { content: '\f1c8'; } /* '' */
.icon-file-code:before { content: '\f1c9'; } /* '' */
.icon-sliders:before { content: '\f1de'; } /* '' */
.icon-share:before { content: '\f1e0'; } /* '' */
.icon-share-squared:before { content: '\f1e1'; } /* '' */
.icon-trash:before { content: '\f1f8'; } /* '' */
/*
   Animation example, for spinners
*/
.animate-spin {
  -moz-animation: spin 2s infinite linear;
  -o-animation: spin 2s infinite linear;
  -webkit-animation: spin 2s infinite linear;
  animation: spin 2s infinite linear;
  display: inline-block;
}
@-moz-keyframes spin {
  0% {
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -moz-transform: rotate(359deg);
    -o-transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
    transform: rotate(359deg);
  }
}
@-webkit-keyframes spin {
  0% {
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -moz-transform: rotate(359deg);
    -o-transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
    transform: rotate(359deg);
  }
}
@-o-keyframes spin {
  0% {
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -moz-transform: rotate(359deg);
    -o-transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
    transform: rotate(359deg);
  }
}
@-ms-keyframes spin {
  0% {
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -moz-transform: rotate(359deg);
    -o-transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
    transform: rotate(359deg);
  }
}
@keyframes spin {
  0% {
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -moz-transform: rotate(359deg);
    -o-transform: rotate(359deg);
    -webkit-transform: rotate(359deg);
    transform: rotate(359deg);
  }
}

body {
	padding-top: 70px;
	overflow-y: scroll !important;
	padding-right: 0px !important;
}

main {
	margin-bottom: 1rem;
}

a {
	cursor: pointer !important;
}

a.ifmitem:focus {
	outline: 0
}

img.imgpreview {
	max-width: 100%;
	background-repeat: repeat repeat;
	background-image: url("data:image/png;base64,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");
}

div#content { /* is for the ACE editor */
	width: 100%;
	height: 350px;
}

/* Make tables more compact (overwrites bootstrap default of 0.75rem) */
.table td, .table th {
	padding: 0.25rem;
}

/* narrow navbar */
.navbar {
	padding: 0.3rem !important;
}

/*
 * Icon size
 */
.icon {
	font-size: 14pt;
}
@media (max-width: 768px) {
	.icon { font-size: 12pt; }
	#filetable tr th.buttons { min-width: 85px !important; }
}

/*
 * Filetable related settings
 */
#filetable th {
	border-top: 0;
}
#filetable td:nth-child(5), #filetable th:nth-child(5) {
	text-align: center;
}
#filetable td:nth-child(6), #filetable th:nth-child(6) {
	text-align: center;
}
#filetable tr td:last-child {
	text-align: right;
}
#filetable td:last-child a:hover {
	text-decoration: none;
}
.td-permissions { width: 1px; }

input[name=newpermissions] {
	padding: 6px 8px;
	width: 6.5rem;
}

#filetable tr th.buttons { min-width: 95px; }
#filetable tbody tr.highlightedItem { box-shadow: 0px 0px 10px 2px #337ab7; }
#filetable tbody tr.highlightedItem td:first-child a { outline: none; }
#filetable tbody tr.selectedItem { background-color: #337ab7; color: #FFF; }
#filetable tbody tr.selectedItem * a { color: #FFF; }
#filetable tbody tr td { vertical-align: inherit; }

div.ifminfo { color: #adadad; font-size: 10pt; }
div.ifminfo div.panel div.panel-body { padding: 0px !important; text-align:  center; }

/*
 * Footer / Task-Queue settings
 */
footer {
	position: fixed;
	padding-top: 1em;
	border-top: 1px;
	background-color: #EEE;
	bottom: 0;
	width: 100%;
	overflow: hidden;
}

#waitqueue {
	max-height: 6rem;
}

#waitqueue .progress {
	position: relative;
	margin-bottom: 0;
}
#waitqueue .progbarlabel {
	position:absolute;
	top: 0;
	left: 10px;
	font-weight: bold;
}

/*
 * File drop overlay
 */
#filedropoverlay {
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	text-align: center;
	color: #FFF;
	background-color: lightblue;
	filter: alpha(opacity=70);
	-moz-opacity: 0.7;
	opacity: 0.7;
	z-index: 1000;
}

#filedropoverlay h1 {
	border-radius: 5px;
	color: #000;
	position:relative;
	top:50%;
	font-size: 6em;
	pointer-events: none;
}


/*
 * Datatables related settings
 */
table.dataTable thead th {
	position: relative;
	background-image: none !important;
}

/* remove original sort icons */
table.dataTable thead .sorting:before,
table.dataTable thead .sorting_asc:before,
table.dataTable thead .sorting_desc:before,
table.dataTable thead .sorting_asc_disabled:before,
table.dataTable thead .sorting_desc_disabled:before {
	right: 0 !important;
	content: "" !important;
}
/* custom sort icons */
table.dataTable thead th.sorting:after,
table.dataTable thead th.sorting_asc:after,
table.dataTable thead th.sorting_desc:after {
	position: absolute;
	top: 6px;
	right: 8px;
	display: block;
	font-family: fontello;
	font-size: 0.8em;
	opacity: 1;
	color: #000;
}
table.dataTable thead th.sorting:after {
	content: "\F0DC";
	color: #ddd;
}
table.dataTable thead th.sorting_asc:after {
	content: "\f0de";
}
table.dataTable thead th.sorting_desc:after {
	content: "\f0dd";
}

/*
 * Modal related settings
 */
#copyMoveTree {
	max-height: 80vh;
	overflow: auto;
}


@media (min-width: 576px) {
	.modal-dialog {
		max-width: 600px;
		margin: 1.75rem auto;
	}
}

@media (min-width: 992px) {
	.modal-lg, .modal-xl {
		max-width: 800px;
	}
}

</style>

f00bar;
	}

	public function getJS() {
		echo <<<'f00bar'
			<script>
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/*! jQuery UI - v1.12.1 - 2016-09-14
* http://jqueryui.com
* Includes: widget.js, position.js, data.js, disable-selection.js, effect.js, effects/effect-blind.js, effects/effect-bounce.js, effects/effect-clip.js, effects/effect-drop.js, effects/effect-explode.js, effects/effect-fade.js, effects/effect-fold.js, effects/effect-highlight.js, effects/effect-puff.js, effects/effect-pulsate.js, effects/effect-scale.js, effects/effect-shake.js, effects/effect-size.js, effects/effect-slide.js, effects/effect-transfer.js, focusable.js, form-reset-mixin.js, jquery-1-7.js, keycode.js, labels.js, scroll-parent.js, tabbable.js, unique-id.js, widgets/accordion.js, widgets/autocomplete.js, widgets/button.js, widgets/checkboxradio.js, widgets/controlgroup.js, widgets/datepicker.js, widgets/dialog.js, widgets/draggable.js, widgets/droppable.js, widgets/menu.js, widgets/mouse.js, widgets/progressbar.js, widgets/resizable.js, widgets/selectable.js, widgets/selectmenu.js, widgets/slider.js, widgets/sortable.js, widgets/spinner.js, widgets/tabs.js, widgets/tooltip.js
* Copyright jQuery Foundation and other contributors; Licensed MIT */

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}},_updateDatepicker:function(e){this.maxRows=4,m=e,e.dpDiv.empty().append(this._generateHTML(e)),this._attachHandlers(e);var i,s=this._getNumberOfMonths(e),n=s[1],a=17,r=e.dpDiv.find("."+this._dayOverClass+" a");r.length>0&&o.apply(r.get(0)),e.dpDiv.removeClass("ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4").width(""),n>1&&e.dpDiv.addClass("ui-datepicker-multi-"+n).css("width",a*n+"em"),e.dpDiv[(1!==s[0]||1!==s[1]?"add":"remove")+"Class"]("ui-datepicker-multi"),e.dpDiv[(this._get(e,"isRTL")?"add":"remove")+"Class"]("ui-datepicker-rtl"),e===t.datepicker._curInst&&t.datepicker._datepickerShowing&&t.datepicker._shouldFocusInput(e)&&e.input.trigger("focus"),e.yearshtml&&(i=e.yearshtml,setTimeout(function(){i===e.yearshtml&&e.yearshtml&&e.dpDiv.find("select.ui-datepicker-year:first").replaceWith(e.yearshtml),i=e.yearshtml=null},0))},_shouldFocusInput:function(t){return t.input&&t.input.is(":visible")&&!t.input.is(":disabled")&&!t.input.is(":focus")},_checkOffset:function(e,i,s){var n=e.dpDiv.outerWidth(),o=e.dpDiv.outerHeight(),a=e.input?e.input.outerWidth():0,r=e.input?e.input.outerHeight():0,h=document.documentElement.clientWidth+(s?0:t(document).scrollLeft()),l=document.documentElement.clientHeight+(s?0:t(document).scrollTop());return i.left-=this._get(e,"isRTL")?n-a:0,i.left-=s&&i.left===e.input.offset().left?t(document).scrollLeft():0,i.top-=s&&i.top===e.input.offset().top+r?t(document).scrollTop():0,i.left-=Math.min(i.left,i.left+n>h&&h>n?Math.abs(i.left+n-h):0),i.top-=Math.min(i.top,i.top+o>l&&l>o?Math.abs(o+r):0),i},_findPos:function(e){for(var i,s=this._getInst(e),n=this._get(s,"isRTL");e&&("hidden"===e.type||1!==e.nodeType||t.expr.filters.hidden(e));)e=e[n?"previousSibling":"nextSibling"];return i=t(e).offset(),[i.left,i.top]},_hideDatepicker:function(e){var i,s,n,o,a=this._curInst;!a||e&&a!==t.data(e,"datepicker")||this._datepickerShowing&&(i=this._get(a,"showAnim"),s=this._get(a,"duration"),n=function(){t.datepicker._tidyDialog(a)},t.effects&&(t.effects.effect[i]||t.effects[i])?a.dpDiv.hide(i,t.datepicker._get(a,"showOptions"),s,n):a.dpDiv["slideDown"===i?"slideUp":"fadeIn"===i?"fadeOut":"hide"](i?s:null,n),i||n(),this._datepickerShowing=!1,o=this._get(a,"onClose"),o&&o.apply(a.input?a.input[0]:null,[a.input?a.input.val():"",a]),this._lastInput=null,this._inDialog&&(this._dialogInput.css({position:"absolute",left:"0",top:"-100px"}),t.blockUI&&(t.unblockUI(),t("body").append(this.dpDiv))),this._inDialog=!1)},_tidyDialog:function(t){t.dpDiv.removeClass(this._dialogClass).off(".ui-datepicker-calendar")},_checkExternalClick:function(e){if(t.datepicker._curInst){var i=t(e.target),s=t.datepicker._getInst(i[0]);(i[0].id!==t.datepicker._mainDivId&&0===i.parents("#"+t.datepicker._mainDivId).length&&!i.hasClass(t.datepicker.markerClassName)&&!i.closest("."+t.datepicker._triggerClass).length&&t.datepicker._datepickerShowing&&(!t.datepicker._inDialog||!t.blockUI)||i.hasClass(t.datepicker.markerClassName)&&t.datepicker._curInst!==s)&&t.datepicker._hideDatepicker()}},_adjustDate:function(e,i,s){var n=t(e),o=this._getInst(n[0]);this._isDisabledDatepicker(n[0])||(this._adjustInstDate(o,i+("M"===s?this._get(o,"showCurrentAtPos"):0),s),this._updateDatepicker(o))},_gotoToday:function(e){var i,s=t(e),n=this._getInst(s[0]);this._get(n,"gotoCurrent")&&n.currentDay?(n.selectedDay=n.currentDay,n.drawMonth=n.selectedMonth=n.currentMonth,n.drawYear=n.selectedYear=n.currentYear):(i=new Date,n.selectedDay=i.getDate(),n.drawMonth=n.selectedMonth=i.getMonth(),n.drawYear=n.selectedYear=i.getFullYear()),this._notifyChange(n),this._adjustDate(s)},_selectMonthYear:function(e,i,s){var n=t(e),o=this._getInst(n[0]);o["selected"+("M"===s?"Month":"Year")]=o["draw"+("M"===s?"Month":"Year")]=parseInt(i.options[i.selectedIndex].value,10),this._notifyChange(o),this._adjustDate(n)},_selectDay:function(e,i,s,n){var o,a=t(e);t(n).hasClass(this._unselectableClass)||this._isDisabledDatepicker(a[0])||(o=this._getInst(a[0]),o.selectedDay=o.currentDay=t("a",n).html(),o.selectedMonth=o.currentMonth=i,o.selectedYear=o.currentYear=s,this._selec
},_cacheMargins:function(){this.margins={left:parseInt(this.element.css("marginLeft"),10)||0,top:parseInt(this.element.css("marginTop"),10)||0,right:parseInt(this.element.css("marginRight"),10)||0,bottom:parseInt(this.element.css("marginBottom"),10)||0}},_cacheHelperProportions:function(){this.helperProportions={width:this.helper.outerWidth(),height:this.helper.outerHeight()}},_setContainment:function(){var e,i,s,n=this.options,o=this.document[0];return this.relativeContainer=null,n.containment?"window"===n.containment?(this.containment=[t(window).scrollLeft()-this.offset.relative.left-this.offset.parent.left,t(window).scrollTop()-this.offset.relative.top-this.offset.parent.top,t(window).scrollLeft()+t(window).width()-this.helperProportions.width-this.margins.left,t(window).scrollTop()+(t(window).height()||o.body.parentNode.scrollHeight)-this.helperProportions.height-this.margins.top],void 0):"document"===n.containment?(this.containment=[0,0,t(o).width()-this.helperProportions.width-this.margins.left,(t(o).height()||o.body.parentNode.scrollHeight)-this.helperProportions.height-this.margins.top],void 0):n.containment.constructor===Array?(this.containment=n.containment,void 0):("parent"===n.containment&&(n.containment=this.helper[0].parentNode),i=t(n.containment),s=i[0],s&&(e=/(scroll|auto)/.test(i.css("overflow")),this.containment=[(parseInt(i.css("borderLeftWidth"),10)||0)+(parseInt(i.css("paddingLeft"),10)||0),(parseInt(i.css("borderTopWidth"),10)||0)+(parseInt(i.css("paddingTop"),10)||0),(e?Math.max(s.scrollWidth,s.offsetWidth):s.offsetWidth)-(parseInt(i.css("borderRightWidth"),10)||0)-(parseInt(i.css("paddingRight"),10)||0)-this.helperProportions.width-this.margins.left-this.margins.right,(e?Math.max(s.scrollHeight,s.offsetHeight):s.offsetHeight)-(parseInt(i.css("borderBottomWidth"),10)||0)-(parseInt(i.css("paddingBottom"),10)||0)-this.helperProportions.height-this.margins.top-this.margins.bottom],this.relativeContainer=i),void 0):(this.containment=null,void 0)},_convertPositionTo:function(t,e){e||(e=this.position);var i="absolute"===t?1:-1,s=this._isRootNode(this.scrollParent[0]);return{top:e.top+this.offset.relative.top*i+this.offset.parent.top*i-("fixed"===this.cssPosition?-this.offset.scroll.top:s?0:this.offset.scroll.top)*i,left:e.left+this.offset.relative.left*i+this.offset.parent.left*i-("fixed"===this.cssPosition?-this.offset.scroll.left:s?0:this.offset.scroll.left)*i}},_generatePosition:function(t,e){var i,s,n,o,a=this.options,r=this._isRootNode(this.scrollParent[0]),h=t.pageX,l=t.pageY;return r&&this.offset.scroll||(this.offset.scroll={top:this.scrollParent.scrollTop(),left:this.scrollParent.scrollLeft()}),e&&(this.containment&&(this.relativeContainer?(s=this.relativeContainer.offset(),i=[this.containment[0]+s.left,this.containment[1]+s.top,this.containment[2]+s.left,this.containment[3]+s.top]):i=this.containment,t.pageX-this.offset.click.left<i[0]&&(h=i[0]+this.offset.click.left),t.pageY-this.offset.click.top<i[1]&&(l=i[1]+this.offset.click.top),t.pageX-this.offset.click.left>i[2]&&(h=i[2]+this.offset.click.left),t.pageY-this.offset.click.top>i[3]&&(l=i[3]+this.offset.click.top)),a.grid&&(n=a.grid[1]?this.originalPageY+Math.round((l-this.originalPageY)/a.grid[1])*a.grid[1]:this.originalPageY,l=i?n-this.offset.click.top>=i[1]||n-this.offset.click.top>i[3]?n:n-this.offset.click.top>=i[1]?n-a.grid[1]:n+a.grid[1]:n,o=a.grid[0]?this.originalPageX+Math.round((h-this.originalPageX)/a.grid[0])*a.grid[0]:this.originalPageX,h=i?o-this.offset.click.left>=i[0]||o-this.offset.click.left>i[2]?o:o-this.offset.click.left>=i[0]?o-a.grid[0]:o+a.grid[0]:o),"y"===a.axis&&(h=this.originalPageX),"x"===a.axis&&(l=this.originalPageY)),{top:l-this.offset.click.top-this.offset.relative.top-this.offset.parent.top+("fixed"===this.cssPosition?-this.offset.scroll.top:r?0:this.offset.scroll.top),left:h-this.offset.click.left-this.offset.relative.left-this.offset.parent.left+("fixed"===this.cssPosition?-this.offset.scroll.left:r?0:this.offset.scroll.left)}},_clear:function(){this._removeClass(this.helper,"ui-draggable-dragging"),this.hel
},disable:t.noop,enable:t.noop,close:function(e){var i=this;this._isOpen&&this._trigger("beforeClose",e)!==!1&&(this._isOpen=!1,this._focusedElement=null,this._destroyOverlay(),this._untrackInstance(),this.opener.filter(":focusable").trigger("focus").length||t.ui.safeBlur(t.ui.safeActiveElement(this.document[0])),this._hide(this.uiDialog,this.options.hide,function(){i._trigger("close",e)}))},isOpen:function(){return this._isOpen},moveToTop:function(){this._moveToTop()},_moveToTop:function(e,i){var s=!1,n=this.uiDialog.siblings(".ui-front:visible").map(function(){return+t(this).css("z-index")}).get(),o=Math.max.apply(null,n);return o>=+this.uiDialog.css("z-index")&&(this.uiDialog.css("z-index",o+1),s=!0),s&&!i&&this._trigger("focus",e),s},open:function(){var e=this;return this._isOpen?(this._moveToTop()&&this._focusTabbable(),void 0):(this._isOpen=!0,this.opener=t(t.ui.safeActiveElement(this.document[0])),this._size(),this._position(),this._createOverlay(),this._moveToTop(null,!0),this.overlay&&this.overlay.css("z-index",this.uiDialog.css("z-index")-1),this._show(this.uiDialog,this.options.show,function(){e._focusTabbable(),e._trigger("focus")}),this._makeFocusTarget(),this._trigger("open"),void 0)},_focusTabbable:function(){var t=this._focusedElement;t||(t=this.element.find("[autofocus]")),t.length||(t=this.element.find(":tabbable")),t.length||(t=this.uiDialogButtonPane.find(":tabbable")),t.length||(t=this.uiDialogTitlebarClose.filter(":tabbable")),t.length||(t=this.uiDialog),t.eq(0).trigger("focus")},_keepFocus:function(e){function i(){var e=t.ui.safeActiveElement(this.document[0]),i=this.uiDialog[0]===e||t.contains(this.uiDialog[0],e);i||this._focusTabbable()}e.preventDefault(),i.call(this),this._delay(i)},_createWrapper:function(){this.uiDialog=t("<div>").hide().attr({tabIndex:-1,role:"dialog"}).appendTo(this._appendTo()),this._addClass(this.uiDialog,"ui-dialog","ui-widget ui-widget-content ui-front"),this._on(this.uiDialog,{keydown:function(e){if(this.options.closeOnEscape&&!e.isDefaultPrevented()&&e.keyCode&&e.keyCode===t.ui.keyCode.ESCAPE)return e.preventDefault(),this.close(e),void 0;if(e.keyCode===t.ui.keyCode.TAB&&!e.isDefaultPrevented()){var i=this.uiDialog.find(":tabbable"),s=i.filter(":first"),n=i.filter(":last");e.target!==n[0]&&e.target!==this.uiDialog[0]||e.shiftKey?e.target!==s[0]&&e.target!==this.uiDialog[0]||!e.shiftKey||(this._delay(function(){n.trigger("focus")}),e.preventDefault()):(this._delay(function(){s.trigger("focus")}),e.preventDefault())}},mousedown:function(t){this._moveToTop(t)&&this._focusTabbable()}}),this.element.find("[aria-describedby]").length||this.uiDialog.attr({"aria-describedby":this.element.uniqueId().attr("id")})},_createTitlebar:function(){var e;this.uiDialogTitlebar=t("<div>"),this._addClass(this.uiDialogTitlebar,"ui-dialog-titlebar","ui-widget-header ui-helper-clearfix"),this._on(this.uiDialogTitlebar,{mousedown:function(e){t(e.target).closest(".ui-dialog-titlebar-close")||this.uiDialog.trigger("focus")}}),this.uiDialogTitlebarClose=t("<button type='button'></button>").button({label:t("<a>").text(this.options.closeText).html(),icon:"ui-icon-closethick",showLabel:!1}).appendTo(this.uiDialogTitlebar),this._addClass(this.uiDialogTitlebarClose,"ui-dialog-titlebar-close"),this._on(this.uiDialogTitlebarClose,{click:function(t){t.preventDefault(),this.close(t)}}),e=t("<span>").uniqueId().prependTo(this.uiDialogTitlebar),this._addClass(e,"ui-dialog-title"),this._title(e),this.uiDialogTitlebar.prependTo(this.uiDialog),this.uiDialog.attr({"aria-labelledby":e.attr("id")})},_title:function(t){this.options.title?t.text(this.options.title):t.html("&#160;")},_createButtonPane:function(){this.uiDialogButtonPane=t("<div>"),this._addClass(this.uiDialogButtonPane,"ui-dialog-buttonpane","ui-widget-content ui-helper-clearfix"),this.uiButtonSet=t("<div>").appendTo(this.uiDialogButtonPane),this._addClass(this.uiButtonSet,"ui-dialog-buttonset"),this._createButtons()},_createButtons:function(){var e=this,i=this.options.buttons;return this.uiDialogButtonPane.remove(),this.uiButtonSet.empty(),t.isEmpt
},_refresh:function(){this._createRange(),this._createHandles(),this._setupEvents(),this._refreshValue()},_createHandles:function(){var e,i,s=this.options,n=this.element.find(".ui-slider-handle"),o="<span tabindex='0'></span>",a=[];for(i=s.values&&s.values.length||1,n.length>i&&(n.slice(i).remove(),n=n.slice(0,i)),e=n.length;i>e;e++)a.push(o);this.handles=n.add(t(a.join("")).appendTo(this.element)),this._addClass(this.handles,"ui-slider-handle","ui-state-default"),this.handle=this.handles.eq(0),this.handles.each(function(e){t(this).data("ui-slider-handle-index",e).attr("tabIndex",0)})},_createRange:function(){var e=this.options;e.range?(e.range===!0&&(e.values?e.values.length&&2!==e.values.length?e.values=[e.values[0],e.values[0]]:t.isArray(e.values)&&(e.values=e.values.slice(0)):e.values=[this._valueMin(),this._valueMin()]),this.range&&this.range.length?(this._removeClass(this.range,"ui-slider-range-min ui-slider-range-max"),this.range.css({left:"",bottom:""})):(this.range=t("<div>").appendTo(this.element),this._addClass(this.range,"ui-slider-range")),("min"===e.range||"max"===e.range)&&this._addClass(this.range,"ui-slider-range-"+e.range)):(this.range&&this.range.remove(),this.range=null)},_setupEvents:function(){this._off(this.handles),this._on(this.handles,this._handleEvents),this._hoverable(this.handles),this._focusable(this.handles)},_destroy:function(){this.handles.remove(),this.range&&this.range.remove(),this._mouseDestroy()},_mouseCapture:function(e){var i,s,n,o,a,r,h,l,c=this,u=this.options;return u.disabled?!1:(this.elementSize={width:this.element.outerWidth(),height:this.element.outerHeight()},this.elementOffset=this.element.offset(),i={x:e.pageX,y:e.pageY},s=this._normValueFromMouse(i),n=this._valueMax()-this._valueMin()+1,this.handles.each(function(e){var i=Math.abs(s-c.values(e));(n>i||n===i&&(e===c._lastChangedValue||c.values(e)===u.min))&&(n=i,o=t(this),a=e)}),r=this._start(e,a),r===!1?!1:(this._mouseSliding=!0,this._handleIndex=a,this._addClass(o,null,"ui-state-active"),o.trigger("focus"),h=o.offset(),l=!t(e.target).parents().addBack().is(".ui-slider-handle"),this._clickOffset=l?{left:0,top:0}:{left:e.pageX-h.left-o.width()/2,top:e.pageY-h.top-o.height()/2-(parseInt(o.css("borderTopWidth"),10)||0)-(parseInt(o.css("borderBottomWidth"),10)||0)+(parseInt(o.css("marginTop"),10)||0)},this.handles.hasClass("ui-state-hover")||this._slide(e,a,s),this._animateOff=!0,!0))},_mouseStart:function(){return!0},_mouseDrag:function(t){var e={x:t.pageX,y:t.pageY},i=this._normValueFromMouse(e);return this._slide(t,this._handleIndex,i),!1},_mouseStop:function(t){return this._removeClass(this.handles,null,"ui-state-active"),this._mouseSliding=!1,this._stop(t,this._handleIndex),this._change(t,this._handleIndex),this._handleIndex=null,this._clickOffset=null,this._animateOff=!1,!1},_detectOrientation:function(){this.orientation="vertical"===this.options.orientation?"vertical":"horizontal"},_normValueFromMouse:function(t){var e,i,s,n,o;return"horizontal"===this.orientation?(e=this.elementSize.width,i=t.x-this.elementOffset.left-(this._clickOffset?this._clickOffset.left:0)):(e=this.elementSize.height,i=t.y-this.elementOffset.top-(this._clickOffset?this._clickOffset.top:0)),s=i/e,s>1&&(s=1),0>s&&(s=0),"vertical"===this.orientation&&(s=1-s),n=this._valueMax()-this._valueMin(),o=this._valueMin()+s*n,this._trimAlignValue(o)},_uiHash:function(t,e,i){var s={handle:this.handles[t],handleIndex:t,value:void 0!==e?e:this.value()};return this._hasMultipleValues()&&(s.value=void 0!==e?e:this.values(t),s.values=i||this.values()),s},_hasMultipleValues:function(){return this.options.values&&this.options.values.length},_start:function(t,e){return this._trigger("start",t,this._uiHash(e))},_slide:function(t,e,i){var s,n,o=this.value(),a=this.values();this._hasMultipleValues()&&(n=this.values(e?0:1),o=this.values(e),2===this.options.values.length&&this.options.range===!0&&(i=0===e?Math.min(n,i):Math.max(n,i)),a[e]=i),i!==o&&(s=this._trigger("slide",t,this._uiHash(e,i,a)),s!==!1&&(this._hasMultipleValues()?this.values(e,i):this.value(i)))},_stop:f
this._delay(function(){n===this.counter&&this.refreshPositions(!s)})},_clear:function(t,e){function i(t,e,i){return function(s){i._trigger(t,s,e._uiHash(e))}}this.reverting=!1;var s,n=[];if(!this._noFinalSort&&this.currentItem.parent().length&&this.placeholder.before(this.currentItem),this._noFinalSort=null,this.helper[0]===this.currentItem[0]){for(s in this._storedCSS)("auto"===this._storedCSS[s]||"static"===this._storedCSS[s])&&(this._storedCSS[s]="");this.currentItem.css(this._storedCSS),this._removeClass(this.currentItem,"ui-sortable-helper")}else this.currentItem.show();for(this.fromOutside&&!e&&n.push(function(t){this._trigger("receive",t,this._uiHash(this.fromOutside))}),!this.fromOutside&&this.domPosition.prev===this.currentItem.prev().not(".ui-sortable-helper")[0]&&this.domPosition.parent===this.currentItem.parent()[0]||e||n.push(function(t){this._trigger("update",t,this._uiHash())}),this!==this.currentContainer&&(e||(n.push(function(t){this._trigger("remove",t,this._uiHash())}),n.push(function(t){return function(e){t._trigger("receive",e,this._uiHash(this))}}.call(this,this.currentContainer)),n.push(function(t){return function(e){t._trigger("update",e,this._uiHash(this))}}.call(this,this.currentContainer)))),s=this.containers.length-1;s>=0;s--)e||n.push(i("deactivate",this,this.containers[s])),this.containers[s].containerCache.over&&(n.push(i("out",this,this.containers[s])),this.containers[s].containerCache.over=0);if(this.storedCursor&&(this.document.find("body").css("cursor",this.storedCursor),this.storedStylesheet.remove()),this._storedOpacity&&this.helper.css("opacity",this._storedOpacity),this._storedZIndex&&this.helper.css("zIndex","auto"===this._storedZIndex?"":this._storedZIndex),this.dragging=!1,e||this._trigger("beforeStop",t,this._uiHash()),this.placeholder[0].parentNode.removeChild(this.placeholder[0]),this.cancelHelperRemoval||(this.helper[0]!==this.currentItem[0]&&this.helper.remove(),this.helper=null),!e){for(s=0;n.length>s;s++)n[s].call(this,t);this._trigger("stop",t,this._uiHash())}return this.fromOutside=!1,!this.cancelHelperRemoval},_trigger:function(){t.Widget.prototype._trigger.apply(this,arguments)===!1&&this.cancel()},_uiHash:function(e){var i=e||this;return{helper:i.helper,placeholder:i.placeholder||t([]),position:i.position,originalPosition:i.originalPosition,offset:i.positionAbs,item:i.currentItem,sender:e?e.element:null}}}),t.widget("ui.spinner",{version:"1.12.1",defaultElement:"<input>",widgetEventPrefix:"spin",options:{classes:{"ui-spinner":"ui-corner-all","ui-spinner-down":"ui-corner-br","ui-spinner-up":"ui-corner-tr"},culture:null,icons:{down:"ui-icon-triangle-1-s",up:"ui-icon-triangle-1-n"},incremental:!0,max:null,min:null,numberFormat:null,page:10,step:1,change:null,spin:null,start:null,stop:null},_create:function(){this._setOption("max",this.options.max),this._setOption("min",this.options.min),this._setOption("step",this.options.step),""!==this.value()&&this._value(this.element.val(),!0),this._draw(),this._on(this._events),this._refresh(),this._on(this.window,{beforeunload:function(){this.element.removeAttr("autocomplete")}})},_getCreateOptions:function(){var e=this._super(),i=this.element;return t.each(["min","max","step"],function(t,s){var n=i.attr(s);null!=n&&n.length&&(e[s]=n)}),e},_events:{keydown:function(t){this._start(t)&&this._keydown(t)&&t.preventDefault()},keyup:"_stop",focus:function(){this.previous=this.element.val()},blur:function(t){return this.cancelBlur?(delete this.cancelBlur,void 0):(this._stop(),this._refresh(),this.previous!==this.element.val()&&this._trigger("change",t),void 0)},mousewheel:function(t,e){if(e){if(!this.spinning&&!this._start(t))return!1;this._spin((e>0?1:-1)*this.options.step,t),clearTimeout(this.mousewheelTimer),this.mousewheelTimer=this._delay(function(){this.spinning&&this._stop(t)},100),t.preventDefault()}},"mousedown .ui-spinner-button":function(e){function i(){var e=this.element[0]===t.ui.safeActiveElement(this.document[0]);e||(this.element.trigger("focus"),this.previous=s,this._delay(function(){this.previous=s}))}var s;s=this.elemen
/*
 Copyright (C) Federico Zivolo 2020
 Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
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this.$menu=l(this);this.$menuList=this.$menu.children();this.$menu.hide().appendTo(this.$container);this.openEvent=this.$openTarget=null;m(this);n(this);g.push(this)};d.prototype.updatePosition=function(){switch(this.options.menuSource){case "element":var b=this.$openTarget;break;case "mouse":b=this.openEvent;break;default:throw Error("Unknown BootstrapMenu 'menuSource' option");}switch(this.options.menuPosition){case "belowRight":var a="right top";var c="right bottom";break;case "belowLeft":a="left top";
c="left bottom";break;case "aboveRight":a="right bottom";c="right top";break;case "aboveLeft":a="left bottom";c="left top";break;default:throw Error("Unknown BootstrapMenu 'menuPosition' option");}this.$menu.css({display:"block"});this.$menu.css({height:this.$menuList.height(),width:this.$menuList.width()});this.$menu.position({my:a,at:c,of:b})};d.prototype.open=function(b,a){var c=this;d.closeAll();this.$openTarget=b;this.openEvent=a;var e=c.options.fetchElementData(c.$openTarget),g=this.$menu.find("[data-action]"),
f=this.$menu.find(".noActionsMessage");g.show();f.hide();var k=0;g.each(function(){var b=$(this),a=b.data("action");a=c.options.actions[a];var d=a.classNames||null;d&&_.isFunction(d)&&(d=d(e));b.attr("class",classNames(d||""));a.isShown&&!1===a.isShown(e)?b.hide():(k++,b.find(".actionName").html(_.isFunction(a.name)&&a.name(e)||a.name),a.isEnabled&&!1===a.isEnabled(e)&&b.addClass("disabled"))});0===k&&f.show();this.updatePosition();this.$menu.show();p(this)};d.prototype.close=function(){this.$menu.hide();
this.$container.off(this.closeNamespace)};d.prototype.destroy=function(){this.close();this.$container.off(this.namespace);this.$menu.off(this.namespace)};d.closeAll=function(){_.each(g,function(b){b.close()})};window.BootstrapMenu=d})(jQuery);
(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?module.exports=factory():typeof define==="function"&&define.amd?define(factory):(global=global||self,global.Mustache=factory())})(this,function(){"use strict";var objectToString=Object.prototype.toString;var isArray=Array.isArray||function isArrayPolyfill(object){return objectToString.call(object)==="[object Array]"};function isFunction(object){return typeof object==="function"}function typeStr(obj){return isArray(obj)?"array":typeof obj}function escapeRegExp(string){return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g,"\\$&")}function hasProperty(obj,propName){return obj!=null&&typeof obj==="object"&&propName in obj}function primitiveHasOwnProperty(primitive,propName){return primitive!=null&&typeof primitive!=="object"&&primitive.hasOwnProperty&&primitive.hasOwnProperty(propName)}var regExpTest=RegExp.prototype.test;function testRegExp(re,string){return regExpTest.call(re,string)}var nonSpaceRe=/\S/;function isWhitespace(string){return!testRegExp(nonSpaceRe,string)}var entityMap={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","/":"&#x2F;","`":"&#x60;","=":"&#x3D;"};function escapeHtml(string){return String(string).replace(/[&<>"'`=\/]/g,function fromEntityMap(s){return entityMap[s]})}var whiteRe=/\s*/;var spaceRe=/\s+/;var equalsRe=/\s*=/;var curlyRe=/\s*\}/;var tagRe=/#|\^|\/|>|\{|&|=|!/;function parseTemplate(template,tags){if(!template)return[];var lineHasNonSpace=false;var sections=[];var tokens=[];var spaces=[];var hasTag=false;var nonSpace=false;var indentation="";var tagIndex=0;function stripSpace(){if(hasTag&&!nonSpace){while(spaces.length)delete tokens[spaces.pop()]}else{spaces=[]}hasTag=false;nonSpace=false}var openingTagRe,closingTagRe,closingCurlyRe;function compileTags(tagsToCompile){if(typeof tagsToCompile==="string")tagsToCompile=tagsToCompile.split(spaceRe,2);if(!isArray(tagsToCompile)||tagsToCompile.length!==2)throw new Error("Invalid tags: "+tagsToCompile);openingTagRe=new RegExp(escapeRegExp(tagsToCompile[0])+"\\s*");closingTagRe=new RegExp("\\s*"+escapeRegExp(tagsToCompile[1]));closingCurlyRe=new RegExp("\\s*"+escapeRegExp("}"+tagsToCompile[1]))}compileTags(tags||mustache.tags);var scanner=new Scanner(template);var start,type,value,chr,token,openSection;while(!scanner.eos()){start=scanner.pos;value=scanner.scanUntil(openingTagRe);if(value){for(var i=0,valueLength=value.length;i<valueLength;++i){chr=value.charAt(i);if(isWhitespace(chr)){spaces.push(tokens.length);indentation+=chr}else{nonSpace=true;lineHasNonSpace=true;indentation+=" "}tokens.push(["text",chr,start,start+1]);start+=1;if(chr==="\n"){stripSpace();indentation="";tagIndex=0;lineHasNonSpace=false}}}if(!scanner.scan(openingTagRe))break;hasTag=true;type=scanner.scan(tagRe)||"name";scanner.scan(whiteRe);if(type==="="){value=scanner.scanUntil(equalsRe);scanner.scan(equalsRe);scanner.scanUntil(closingTagRe)}else if(type==="{"){value=scanner.scanUntil(closingCurlyRe);scanner.scan(curlyRe);scanner.scanUntil(closingTagRe);type="&"}else{value=scanner.scanUntil(closingTagRe)}if(!scanner.scan(closingTagRe))throw new Error("Unclosed tag at "+scanner.pos);if(type==">"){token=[type,value,start,scanner.pos,indentation,tagIndex,lineHasNonSpace]}else{token=[type,value,start,scanner.pos]}tagIndex++;tokens.push(token);if(type==="#"||type==="^"){sections.push(token)}else if(type==="/"){openSection=sections.pop();if(!openSection)throw new Error('Unopened section "'+value+'" at '+start);if(openSection[1]!==value)throw new Error('Unclosed section "'+openSection[1]+'" at '+start)}else if(type==="name"||type==="{"||type==="&"){nonSpace=true}else if(type==="="){compileTags(value)}}stripSpace();openSection=sections.pop();if(openSection)throw new Error('Unclosed section "'+openSection[1]+'" at '+scanner.pos);return nestTokens(squashTokens(tokens))}function squashTokens(tokens){var squashedTokens=[];var token,lastToken;for(var i=0,numTokens=tokens.length;i<numTokens;++i){token=tokens[i];if(token){if(token[0]==="text"&&lastToken&&lastToken[0]==="text"){lastToken[1]+=token[1];la
(function(){var s,o,l,r,h,e,t,i=function(){return this}();i||"undefined"==typeof window||(i=window),"undefined"==typeof requirejs&&((s=function(e,t,i){"string"==typeof e?(2==arguments.length&&(i=t),s.modules[e]||(s.payloads[e]=i,s.modules[e]=null)):s.original?s.original.apply(this,arguments):(console.error("dropping module because define wasn't a string."),console.trace())}).modules={},s.payloads={},o=function(e,t,i){if("string"==typeof t){var n=h(e,t);if(null!=n)return i&&i(),n}else if("[object Array]"===Object.prototype.toString.call(t)){for(var s=[],o=0,r=t.length;o<r;++o){var a=h(e,t[o]);if(null==a&&l.original)return;s.push(a)}return i&&i.apply(null,s)||!0}},l=function(e,t){var i=o("",e,t);return null==i&&l.original?l.original.apply(this,arguments):i},r=function(e,t){if(-1!==t.indexOf("!")){var i=t.split("!");return r(e,i[0])+"!"+r(e,i[1])}if("."==t.charAt(0))for(t=e.split("/").slice(0,-1).join("/")+"/"+t;-1!==t.indexOf(".")&&n!=t;){var n=t;t=t.replace(/\/\.\//,"/").replace(/[^\/]+\/\.\.\//,"")}return t},h=function(e,i){i=r(e,i);var t,n=s.modules[i];return n||("function"==typeof(n=s.payloads[i])&&(e={id:i,uri:"",exports:t={},packaged:!0},t=n(function(e,t){return o(i,e,t)},t,e)||e.exports,s.modules[i]=t,delete s.payloads[i]),n=s.modules[i]=t||n),n},t=i,(e="")&&(i[e]||(i[e]={}),t=i[e]),t.define&&t.define.packaged||(s.original=t.define,t.define=s,t.define.packaged=!0),t.require&&t.require.packaged||(l.original=t.require,t.require=l,t.require.packaged=!0))})(),define("ace/lib/fixoldbrowsers",["require","exports","module"],function(e,t,i){"use strict";"undefined"==typeof Element||Element.prototype.remove||Object.defineProperty(Element.prototype,"remove",{enumerable:!1,writable:!0,configurable:!0,value:function(){this.parentNode&&this.parentNode.removeChild(this)}})}),define("ace/lib/useragent",["require","exports","module"],function(e,t,i){"use strict";t.OS={LINUX:"LINUX",MAC:"MAC",WINDOWS:"WINDOWS"},t.getOS=function(){return t.isMac?t.OS.MAC:t.isLinux?t.OS.LINUX:t.OS.WINDOWS};var n="object"==typeof navigator?navigator:{},s=(/mac|win|linux/i.exec(n.platform)||["other"])[0].toLowerCase(),o=n.userAgent||"",n=n.appName||"";t.isWin="win"==s,t.isMac="mac"==s,t.isLinux="linux"==s,t.isIE="Microsoft Internet Explorer"==n||0<=n.indexOf("MSAppHost")?parseFloat((o.match(/(?:MSIE |Trident\/[0-9]+[\.0-9]+;.*rv:)([0-9]+[\.0-9]+)/)||[])[1]):parseFloat((o.match(/(?:Trident\/[0-9]+[\.0-9]+;.*rv:)([0-9]+[\.0-9]+)/)||[])[1]),t.isOldIE=t.isIE&&t.isIE<9,t.isGecko=t.isMozilla=o.match(/ Gecko\/\d+/),t.isOpera="object"==typeof opera&&"[object Opera]"==Object.prototype.toString.call(window.opera),t.isWebKit=parseFloat(o.split("WebKit/")[1])||void 0,t.isChrome=parseFloat(o.split(" Chrome/")[1])||void 0,t.isEdge=parseFloat(o.split(" Edge/")[1])||void 0,t.isAIR=0<=o.indexOf("AdobeAIR"),t.isAndroid=0<=o.indexOf("Android"),t.isChromeOS=0<=o.indexOf(" CrOS "),t.isIOS=/iPad|iPhone|iPod/.test(o)&&!window.MSStream,t.isIOS&&(t.isMac=!0),t.isMobile=t.isIOS||t.isAndroid}),define("ace/lib/dom",["require","exports","module","ace/lib/useragent"],function(e,o,t){"use strict";function r(){var e=l;l=null,e&&e.forEach(function(e){i(e[0],e[1])})}function i(e,t,i){if("undefined"!=typeof document){if(l)if(i)r();else if(!1===i)return l.push([e,t]);if(!a){var n=i,s=(n=!(i&&i.getRootNode&&(n=i.getRootNode())&&n!=i)?document:n).ownerDocument||n;if(t&&o.hasCssString(t,n))return null;t&&(e+="\n/*# sourceURL=ace/css/"+t+" */");i=o.createElement("style");i.appendChild(s.createTextNode(e)),t&&(i.id=t),(n=n==s?o.getDocumentHead(s):n).insertBefore(i,n.firstChild)}}}var n=e("./useragent");o.buildDom=function e(t,i,n){if("string"==typeof t&&t){var s=document.createTextNode(t);return i&&i.appendChild(s),s}if(!Array.isArray(t))return t&&t.appendChild&&i&&i.appendChild(t),t;if("string"!=typeof t[0]||!t[0]){for(var o=[],r=0;r<t.length;r++){var a=e(t[r],i,n);a&&o.push(a)}return o}for(var l=document.createElement(t[0]),h=t[1],s=1,r=s=h&&"object"==typeof h&&!Array.isArray(h)?2:s;r<t.length;r++)e(t[r],l,n);return 2==s&&Object.keys(h).forEach(function(e){var t=h[e];"class"===e?l.className

/**
 * IFM constructor
 *
 * @param object params - object with some configuration values, currently you only can set the api url
 */
function IFM(params) {
	// reference to ourself, because "this" does not work within callbacks
	var self = this;

	params = params || {};
	// set the backend for the application
	self.api = params.api || window.location.href.replace(/#.*/, "");

	// desktop browser not support window.orientation
	const ISMOBILE = typeof window.orientation !== 'undefined';

	this.editor = null;		// global ace editor
	this.fileChanged = false;	// flag for check if file was changed already
	this.currentDir = "";		// this is the global variable for the current directory; it is used for AJAX requests
	this.rootElement = "";		// global root element, currently not used
	this.fileCache = [];		// holds the current set of files
	this.search = {};		// holds the last search query, as well as the search results

	// This indicates if the modal was closed by a button or not, to prevent the user
	// from accidentially close it while editing a file.
	this.isModalClosedByButton = false;

	this.datatable = null; // Reference for the data table

	/**
	 * Shows a bootstrap modal
	 *
	 * @param {string} content - HTML content of the modal
	 * @param {object} options - options for the modal ({ large: false })
	 */
	this.showModal = function( content, options, modal_options ) {
		options = options || {};
		let modal = document.createElement( 'div' );
		modal.classList.add( 'modal' );
		modal.id = 'ifmmodal';
		modal.attributes.role = 'dialog';
		let modalDialog = document.createElement( 'div' );
		modalDialog.classList.add( 'modal-dialog' );
		modalDialog.attributes.role = 'document';
		if( options.large == true ) modalDialog.classList.add( 'modal-lg' );
		let modalContent = document.createElement('div');
		modalContent.classList.add( 'modal-content' );
		modalContent.innerHTML = content;
		modalDialog.appendChild( modalContent );
		modal.appendChild( modalDialog );
		document.body.appendChild( modal );

		// For this we have to use jquery, because bootstrap modals depend on them. Also the bs.modal
		// events require jquery, as they cannot be handled by addEventListener()
		$(modal)
			.on( 'hide.bs.modal', function( e ) {
				if( document.forms.formFile && self.fileChanged && !self.isModalClosedByButton ) {
					self.log( "Prevented closing modal because the file was changed and no button was clicked." );
					e.preventDefault();
				} else
					$(this).remove();
			})
			.on( 'shown.bs.modal', function( e ) {
				let formElements = $(this).find('input, button');
				if( formElements.length > 0 ) {
					formElements.first().focus();
				}
			})
			.modal(modal_options)
			.modal('show');
	};

	/**
	 * Hides a the current bootstrap modal
	 */
	this.hideModal = function() {
		// Hide the modal via jquery to get the hide.bs.modal event triggered
		$( '#ifmmodal' ).modal( 'hide' );
		self.isModalClosedByButton = false;
	};

	/**
	 * Refreshes the file table
	 */
	this.refreshFileTable = function () {
		let taskid = self.generateGuid();
		self.task_add( { id: taskid, name: self.i18n.refresh } );
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "getFiles",
				dir: self.currentDir
			},
			dataType: "json",
			success: self.rebuildFileTable,
			error: function() { self.showMessage( self.i18n.general_error, "e" ); },
			complete: function() { self.task_done( taskid ); }
		});
	};

	/**
	 * Rebuilds the file table with fetched items
	 *
	 * @param object data - object with items
	 */
	this.rebuildFileTable = function( data ) {
		if( data.status == "ERROR" ) {
			self.showMessage( data.message, "e" );
			return;
		} else if ( ! Array.isArray( data ) ) {
			self.showMessage( self.i18n.invalid_data, "e" );
			return;
		}
		data.forEach( function( item ) {
			item.guid = self.generateGuid();
			item.linkname = ( item.name == ".." ) ? "[ up ]" : item.name;
			if( item.name == ".." )
				item.fixtop = 100;
			item.download = {};
			item.download.name = ( item.name == ".." ) ? "." : item.name;
			item.lastmodified_hr = self.formatDate( item.lastmodified );
			if( ! self.config.chmod )
				item.readonly = "readonly";
			if( self.config.edit || self.config.rename || self.config.delete || self.config.extract || self.config.copymove ) {
				item.ftbuttons = true;
				item.button = [];
			}
			if( item.type == "dir" ) {
				if( self.config.download && self.config.zipnload ) {
					item.download.action = "zipnload";
					item.download.icon = "icon icon-download-cloud";
				}
				item.rowclasses = "isDir";
			} else {
				if( self.config.download ) {
					item.download.action = "download";
					item.download.icon = "icon icon-download";
				}
				if ((item.icon.indexOf( 'file-image' ) !== -1) && (ISMOBILE == false)) {
					item.popover = 'data-toggle="popover"';
				}
				if( self.config.extract && self.inArray( item.ext, ["zip","tar","tgz","tar.gz","tar.xz","tar.bz2"] ) ) {
					item.eaction = "extract";
					item.button.push({
						action: "extract",
						icon: "icon icon-archive",
						title: "extract"
					});
				} else if(
					self.config.edit &&
					(
						self.config.disable_mime_detection ||
						(
							typeof item.mime_type === "string" && (
								item.mime_type.substr( 0, 4 ) == "text"
								|| item.mime_type.indexOf("x-empty") != -1
								|| item.mime_type.indexOf("xml") != -1
								|| item.mime_type.indexOf("json") != -1
							)
						)
					)
				) {
					item.eaction = "edit";
					item.button.push({
						action: "edit",
						icon: "icon icon-pencil",
						title: "edit"
					});
				}
			}
			item.download.link = self.api+"?api="+item.download.action+"&dir="+self.hrefEncode(self.currentDir)+"&filename="+self.hrefEncode(item.download.name);
			if( self.config.isDocroot && !self.config.forceproxy )
				item.link = self.hrefEncode( self.pathCombine( window.location.path, self.currentDir, item.name ) );
			else if (self.config.download && self.config.zipnload) {
				if (self.config.root_public_url) {
					if (self.config.root_public_url.charAt(0) == "/")
						item.link = self.pathCombine(window.location.origin, self.config.root_public_url, self.hrefEncode(self.currentDir), self.hrefEncode(item.name) );
					else
						item.link = self.pathCombine(self.config.root_public_url, self.hrefEncode(self.currentDir), self.hrefEncode(item.name) );
				} else
					item.link = self.api+"?api="+(item.download.action=="zipnload"?"zipnload":"proxy")+"&dir="+self.hrefEncode(self.currentDir)+"&filename="+self.hrefEncode(item.download.name);
			} else
				item.link = '#';
			if( ! self.inArray( item.name, [".", ".."] ) ) {
				item.dragdrop = 'draggable="true"';
				if( self.config.copymove )
					item.button.push({
						action: "copymove",
						icon: "icon icon-folder-open-empty",
						title: "copy/move"
					});
				if( self.config.rename )
					item.button.push({
						action: "rename",
						icon: "icon icon-terminal",
						title: "rename"
					});
				if( self.config.delete )
					item.button.push({
						action: "delete",
						icon: "icon icon-trash",
						title: "delete"
					});
			}
		});

		// save items to file cache
		self.fileCache = data;


		// build new tbody and replace the old one with the new
		let newTBody = Mustache.render( self.templates.filetable, { items: data, config: self.config, i18n: self.i18n, api: self.api } );
		let filetable = document.getElementById( 'filetable' );
		filetable.tBodies[0].remove();
		filetable.append( document.createElement( 'tbody' ) );
		filetable.tBodies[0].innerHTML = newTBody;

		if( self.datatable ) self.datatable.destroy();
		self.datatable = $('#filetable').DataTable({
			paging: !!self.config.paging,
			pageLength: self.config.pageLength||50,
			info: false,
			autoWidth: false,
			columnDefs: [
				{ "orderable": false, "targets": ["th-download","th-permissions","th-buttons"] }
			],
			orderFixed: [0, 'desc'],
			language: {
				"search": self.i18n.filter
			},
			stateSave: true,
			responsive: true
		});


		// add event listeners
		filetable.tBodies[0].addEventListener( 'keypress', function( e ) {
			if( e.target.name == 'newpermissions' && !!self.config.chmod && e.key == 'Enter' )
				self.changePermissions( e.target.dataset.filename, e.target.value );
		});
		filetable.tBodies[0].addEventListener( 'click', function( e ) {
			if( e.target.tagName == "TD" && e.target.parentElement.classList.contains( 'clickable-row' ) && e.target.parentElement.dataset.filename !== ".." && e.ctrlKey )
				e.target.parentElement.classList.toggle( 'selectedItem' );
			else if( e.target.classList.contains( 'ifmitem' ) || e.target.parentElement.classList.contains( 'ifmitem' ) ) {
				ifmitem = ( e.target.classList.contains( 'ifmitem' ) ? e.target : e.target.parentElement );
				if( ifmitem.dataset.type == "dir" ) {
					e.stopPropagation();
					e.preventDefault();
					self.changeDirectory( ifmitem.parentElement.parentElement.dataset.filename );
				}
			} else if( e.target.parentElement.name == 'start_download' ) {
				e.stopPropagation();
				e.preventDefault();
				document.forms["d_"+e.target.parentElement.dataset.guid].submit();
			} else if( e.target.parentElement.name && e.target.parentElement.name.substring(0, 3) == "do-" ) {
				e.stopPropagation();
				e.preventDefault();
				let item = self.fileCache.find( function( x ) { if( x.guid === e.target.parentElement.dataset.id ) return x; } );
				switch( e.target.parentElement.name.substr( 3 ) ) {
					case "rename":
						self.showRenameFileDialog( item.name );
						break;
					case "extract":
						self.showExtractFileDialog( item.name );
						break;
					case "edit":
						self.editFile( item.name );
						break;
					case "delete":
						self.showDeleteDialog( item );
						break;
					case "copymove":
						self.showCopyMoveDialog( item );
						break;
				}
			}
		});

		// as we cannot specify the rows for datatable responsive plugin, and it intercepts all the clicks, we ignore all browser actions and change directory manually
		$('#filetable tbody tr.isDir td a.ifmitem').on('click', function(e){
			e.stopPropagation();
			e.preventDefault();
			self.changeDirectory( e.target.parentElement.parentElement.dataset.filename );
		});

		// has to be jquery, since this is a bootstrap feature
		$( 'a[data-toggle="popover"]' ).popover({
			content: function() {
				let item = self.fileCache.find( x => x.guid == $(this).attr('id') );
				let popover = document.createElement( 'img' );
				if( self.config.isDocroot )
					popover.src = encodeURI( self.pathCombine( self.currentDir, item.name ) ).replace( /#/g, '%23' ).replace( /\?/g, '%3F' );
				else
					popover.src = self.api + "?api=proxy&dir=" + encodeURIComponent( self.currentDir ) + "&filename=" + encodeURIComponent( item.name );
				popover.classList.add( 'imgpreview' );
				return popover;
			},
			animated: 'fade',
			placement: 'bottom',
			trigger: 'hover',
			html: true
		});

		if( self.config.contextmenu && !!( self.config.edit || self.config.extract || self.config.rename || self.config.copymove || self.config.download || self.config.delete ) ) {
			// create the context menu, this also uses jquery, AFAIK
			let contextMenu = new BootstrapMenu( '.clickable-row', {
				fetchElementData: function( row ) {
					let data = {};
					data.selected =
						Array.prototype.slice.call( document.getElementsByClassName( 'selectedItem' ) )
						.map( function(e){ return self.fileCache.find( x => x.guid == e.children[0].children[0].id ); } );
					data.clicked = self.fileCache.find( x => x.guid == row[0].children[0].children[0].id );
					return data;
				},
				actionsGroups:[
					['edit', 'extract', 'rename', 'copylink'],
					['copymove', 'download', 'createarchive', 'delete']
				],
				actions: {
					edit: {
						name: self.i18n.edit,
						onClick: function( data ) {
							self.editFile( data.clicked.name );
						},
						iconClass: "icon icon-pencil",
						isShown: function( data ) {
							return !!( self.config.edit && data.clicked.eaction == "edit" && !data.selected.length );
						}
					},
					extract: {
						name: self.i18n.extract,
						onClick: function( data ) {
							self.showExtractFileDialog( data.clicked.name );
						},
						iconClass: "icon icon-archive",
						isShown: function( data ) {
							return !!( self.config.extract && data.clicked.eaction == "extract" && !data.selected.length );
						}
					},
					rename: {
						name: self.i18n.rename,
						onClick: function( data ) {
							self.showRenameFileDialog( data.clicked.name );
						},
						iconClass: "icon icon-terminal",
						isShown: function( data ) { return !!( self.config.rename && !data.selected.length && data.clicked.name != ".." ); }
					},
					copylink: {
						name: self.i18n.copylink,
						onClick: function( data ) {
							if( data.clicked.link.toLowerCase().substr(0,4) == "http" )
								self.copyToClipboard( data.clicked.link );
							else {
								let pathname = window.location.pathname.replace( /^\/*/g, '' ).split( '/' );
								pathname.pop();
								let link = self.pathCombine( window.location.origin, data.clicked.link )
								if( pathname.length > 0 )
									link = self.pathCombine( window.location.origin, pathname.join( '/' ), data.clicked.link )
								self.copyToClipboard( link );
							}
						},
					},
					extract: {
						name: self.i18n.extract,
						onClick: function( data ) {
							self.showExtractFileDialog( data.clicked.name );
						},
						iconClass: "icon icon-archive",
						isShown: function( data ) {
							return !!( self.config.extract && data.clicked.eaction == "extract" && !data.selected.length );
						}
					},
					rename: {
						name: self.i18n.rename,
						onClick: function( data ) {
							self.showRenameFileDialog( data.clicked.name );
						},
						iconClass: "icon icon-terminal",
						isShown: function( data ) { return !!( self.config.rename && !data.selected.length && data.clicked.name != ".." ); }
					},
					copylink: {
						name: self.i18n.copylink,
						onClick: function( data ) {
							if( data.clicked.link.toLowerCase().substr(0,4) == "http" )
								self.copyToClipboard( data.clicked.link );
							else {
								var pathname = window.location.pathname.replace( /^\/*/g, '' ).split( '/' );
								pathname.pop();
								var link = self.pathCombine( window.location.origin, data.clicked.link )
								if( pathname.length > 0 )
									link = self.pathCombine( window.location.origin, pathname.join( '/' ), data.clicked.link )
								self.copyToClipboard( link );
							}
						},
						iconClass: "icon icon-link-ext",
						isShown: function( data ) { return !!( !data.selected.length && data.clicked.name != ".." ); }
					},
					copymove: {
						name: function( data ) {
							if( data.selected.length > 0 )
								return self.i18n.copy+'/'+self.i18n.move+' <span class="badge">'+data.selected.length+'</span>';
							else
								return self.i18n.copy+'/'+self.i18n.move;
						},
						onClick: function( data ) {
							if( data.selected.length > 0 )
								self.showCopyMoveDialog( data.selected );
							else
								self.showCopyMoveDialog( data.clicked );
						},
						iconClass: "icon icon-folder-empty",
						isShown: function( data ) { return !!( self.config.copymove && data.clicked.name != ".." ); }
					},
					download: {
						name: function( data ) {
							if( data.selected.length > 0 )
								return self.i18n.download+' <span class="badge">'+data.selected.length+'</span>';
							else
								return self.i18n.download;
						},
						onClick: function( data ) {
							if( data.selected.length > 0 )
								self.showMessage( "At the moment it is not possible to download a set of files." );
							else
								window.location = data.clicked.download.link;
						},
						iconClass: "icon icon-download",
						isShown: function() { return !!self.config.download; }
					},
					createarchive: {
						name: function( data ) {
							if( data.selected.length > 0 )
								return self.i18n.create_archive+' <span class="badge">'+data.selected.length+'</span>';
							else
								return self.i18n.create_archive;
						},
						onClick: function( data ) {
							if( data.selected.length > 0 )
								self.showCreateArchiveDialog( data.selected );
							else
								self.showCreateArchiveDialog( data.clicked );
						},
						iconClass: "icon icon-archive",
						isShown: function( data ) { return !!( self.config.createarchive && data.clicked.name != ".." ); }
					},
					'delete': {
						name: function( data ) {
							if( data.selected.length > 0 )
								return self.i18n.delete+' <span class="badge">'+data.selected.length+'</span>';
							else
								return self.i18n.delete;
						},
						onClick: function( data ) {
							if( data.selected.length > 0 )
								self.showDeleteDialog( data.selected );
							else
								self.showDeleteDialog( data.clicked );
						},
						iconClass: "icon icon-trash",
						isShown: function( data ) { return !!( self.config.delete && data.clicked.name != ".." ); }
					}
				}
			});
		}
	};

	/**
	 * Changes the current directory
	 *
	 * @param string newdir - target directory
	 * @param object options - options for changing the directory
	 */
	this.changeDirectory = function( newdir, options ) {
		options = options || {};
		config = { absolute: false, pushState: true };
		jQuery.extend( config, options );
		if( ! config.absolute ) newdir = self.pathCombine( self.currentDir, newdir );
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "getRealpath",
				dir: newdir
			}),
			dataType: "json",
			success: function( data ) {
				self.currentDir = data.realpath;
				self.refreshFileTable();
				$( "#currentDir" ).val( self.currentDir );
				if( config.pushState ) history.pushState( { dir: self.currentDir }, self.currentDir, "#"+encodeURIComponent( self.currentDir ) );
			},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); }
		});
	};

	/**
	 * Shows a file, either a new file or an existing
	 */
	this.showFileDialog = function () {
		let filename = arguments.length > 0 ? arguments[0] : "newfile.txt";
		let content = arguments.length > 1 ? arguments[1] : "";
		self.showModal( Mustache.render( self.templates.file, { filename: filename, i18n: self.i18n } ), { large: true } );

		let form = document.getElementById( 'formFile' );
		form.addEventListener( 'keypress', function( e ) {
			if( e.target.name == 'filename' && e.key == 'Enter' )
				e.preventDefault();
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == "buttonSave" ) {
				e.preventDefault();
				self.saveFile( document.querySelector( '#formFile input[name=filename]' ).value, self.editor.getValue() );
				self.isModalClosedByButton = true;
				self.hideModal();
			} else if( e.target.id == "buttonSaveNotClose" ) {
				e.preventDefault();
				self.saveFile( document.querySelector( '#formFile input[name=filename]' ).value, self.editor.getValue() );
			} else if( e.target.id == "buttonClose" ) {
				e.preventDefault();
				self.isModalClosedByButton = true;
				self.hideModal();
			}
		});

		$('#editoroptions').popover({
			html: true,
			title: self.i18n.options,
			content: function() {
				// see https://github.com/twbs/bootstrap/issues/12571
				// var ihatethisfuckingpopoverworkaround = $('#editoroptions').data('bs.popover');
				// $(ihatethisfuckingpopoverworkaround.tip).find( '.popover-body' ).empty();

				let aceSession = self.editor.getSession();
				let content = self.getNodeFromString(
					Mustache.render(
						self.templates.file_editoroptions,
						{
							wordwrap: ( aceSession.getOption( 'wrap' ) == 'off' ? false : true ),
							softtabs: aceSession.getOption( 'useSoftTabs' ),
							tabsize: aceSession.getOption( 'tabSize' ),
							ace_includes: self.ace,
							ace_mode_selected: function() {
								return ( aceSession.$modeId == "ace/mode/"+this ) ? 'selected="selected"' : '';
							},
							i18n: self.i18n
						}
					)
				);
				if( el = content.querySelector("#editor-wordwrap" )) {
					el.addEventListener( 'change', function( e ) {
						aceSession.setOption( 'wrap', e.srcElement.checked );
					});
				}
				if( el = content.querySelector("#editor-softtabs" ))
					el.addEventListener( 'change', function( e ) {
						aceSession.setOption( 'useSoftTabs', e.srcElement.checked );
					});
				if( el = content.querySelector("#editor-tabsize" )) {
					el.addEventListener( 'keydown', function( e ) {
						if( e.key == 'Enter' ) {
							e.preventDefault();
							aceSession.setOption( 'tabSize', e.srcElement.value );
						}
					});
				}
				if( el = content.querySelector("#editor-syntax" ))
					el.addEventListener( 'change', function( e ) {
						aceSession.getSession().setMode( e.target.value );
					});
				return content;

			}
		});

		// Start ACE
		self.editor = ace.edit("content");
		self.editor.$blockScrolling = 'Infinity';
		self.editor.getSession().setValue(content);
		self.editor.focus();
		self.editor.on("change", function() { self.fileChanged = true; });
		if( self.ace && self.inArray( "ext-modelist", self.ace.files ) ) {
			let mode = ace.require( "ace/ext/modelist" ).getModeForPath( filename ).mode;
			if( self.inArray( mode, self.ace.modes.map( x => "ace/mode/"+x ) ) )
				self.editor.getSession().setMode( mode );
		}
		self.editor.commands.addCommand({
			name: "toggleFullscreen",
			bindKey: "Ctrl-Shift-F",
			exec: function(e) {
				let el = e.container;
				if (el.parentElement.tagName == "BODY") {
					el.remove();
					let fieldset = document.getElementsByClassName('modal-body')[0].firstElementChild;
					fieldset.insertBefore(el, fieldset.getElementsByTagName('button')[0].previousElementSibling);
					el.style = Object.assign({}, ifm.tmpEditorStyles);
					ifm.tmpEditorStyles = undefined;
				} else {
					ifm.tmpEditorStyles = Object.assign({}, el.style);
					el.remove();
					document.body.appendChild(el);
					el.style.position = "absolute";
					el.style.top = 0;
					el.style.left = 0;
					el.style.zIndex = 10000;
					el.style.width = "100%";
					el.style.height = "100%";
				}
				e.resize();
				e.focus();
			}
		});
	};

	/**
	 * Saves a file
	 */
	this.saveFile = function( filename, content ) {
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "saveFile",
				dir: self.currentDir,
				filename: filename,
				content: content
			}),
			dataType: "json",
			success: function( data ) {
						if( data.status == "OK" ) {
							self.showMessage( self.i18n.file_save_success, "s" );
							self.refreshFileTable();
						} else self.showMessage( data.message, "e" );
					},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); }
		});
		self.fileChanged = false;
	};

	/**
	 * Edit a file
	 *
	 * @params string name - name of the file
	 */
	this.editFile = function( filename ) {
		$.ajax({
			url: self.api,
			type: "POST",
			dataType: "json",
			data: ({
				api: "getContent",
				dir: self.currentDir,
				filename: filename
			}),
			success: function( data ) {
						if( data.status == "OK" && data.data.content != null ) {
							self.showFileDialog( data.data.filename, data.data.content );
						}
						else if( data.status == "OK" && data.data.content == null ) {
							self.showMessage( self.i18n.file_load_error, "e" );
						}
						else self.showMessage( data.message, "e" );
					},
			error: function() { self.showMessage( self.i18n.file_display_error, "e" ); }
		});
	};

	/**
	 * Shows the create directory dialog
	 */
	this.showCreateDirDialog = function() {
		self.showModal( Mustache.render( self.templates.createdir, { i18n: self.i18n } ) );
		let form = document.forms.formCreateDir;
		form.elements.dirname.addEventListener( 'keypress', function( e ) {
			if(e.key == 'Enter' ) {
				e.preventDefault();
				self.createDir( e.target.value );
				self.hideModal();
			}
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonSave' ) {
				e.preventDefault();
				self.createDir( form.elements.dirname.value );
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		}, false );
	};

	/**
	 * Create a directory
	 */
	this.createDir = function( dirname ) {
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "createDir",
				dir: self.currentDir,
				dirname: dirname
			}),
			dataType: "json",
			success: function( data ){
					if( data.status == "OK" ) {
						self.showMessage( self.i18n.folder_create_success, "s" );
						self.refreshFileTable();
					}
					else {
						self.showMessage( data.message, "e" );
					}
				},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); }
		});
	};

	/**
	 * Shows the delete dialog
	 */
	this.showDeleteDialog = function( items ) {
		self.showModal(	Mustache.render( self.templates.deletefile, {
			multiple: ( items.length > 1 ),
			count: items.length,
			filename: ( Array.isArray( items ) ? items[0].name : items.name ),
			i18n: self.i18n
		}));
		let form = document.forms.formDeleteFiles;
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonYes' ) {
				e.preventDefault();
				self.deleteFiles( items );
				self.hideModal();
			} else if( e.target.id == 'buttonNo' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Deletes files
	 *
	 * @params {array} items - array with objects from the fileCache
	 */
	this.deleteFiles = function( items ) {
		if( ! Array.isArray( items ) )
			items = [items];
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "delete",
				dir: self.currentDir,
				filenames: items.map( function( e ){ return e.name; } )
			}),
			dataType: "json",
			success: function( data ) {
						if( data.status == "OK" ) {
							self.showMessage( self.i18n.file_delete_success, "s" );
							self.refreshFileTable();
						} else self.showMessage( self.i18n.file_delete_error, "e" );
					},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); }
		});
	};

	/**
	 * Show the rename file dialog
	 *
	 * @params string name - name of the file
	 */
	this.showRenameFileDialog = function( filename ) {
		self.showModal( Mustache.render( self.templates.renamefile, { filename: filename, i18n: self.i18n } ) );
		let form = document.forms.formRenameFile;
		form.elements.newname.addEventListener( 'keypress', function( e ) {
			if( e.key == 'Enter' ) {
				e.preventDefault();
				self.renameFile( filename, e.target.value );
				self.hideModal();
			}
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonRename' ) {
				e.preventDefault();
				self.renameFile( filename, form.elements.newname.value );
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Renames a file
	 *
	 * @params string name - name of the file
	 */
	this.renameFile = function( filename, newname ) {
		$.ajax({
			url: ifm.api,
			type: "POST",
			data: ({
				api: "rename",
				dir: ifm.currentDir,
				filename: filename,
				newname: newname
			}),
			dataType: "json",
			success: function(data) {
						if(data.status == "OK") {
							ifm.showMessage( self.i18n.file_rename_success, "s");
							ifm.refreshFileTable();
						} else ifm.showMessage( data.message, "e");
					},
			error: function() { ifm.showMessage( self.i18n.general_error, "e"); }
		});
	};

	/**
	 * Show the copy/move dialog
	 *
	 * @params string name - name of the file
	 */
	this.showCopyMoveDialog = function( items ) {
		self.showModal( Mustache.render( self.templates.copymove, { i18n: self.i18n } ) );
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "getFolders"
			}),
			dataType: "json",
			success: function( data ) {
				$( '#copyMoveTree' ).treeview({
					data: data,
					levels: 1,
					expandIcon: "icon icon-plus-squared",
					collapseIcon: "icon icon-minus-squared-alt",
					loadingIcon: "icon icon-spin5",
					lazyLoad: function( n, cb ) {
						$.ajax({
							url: self.api,
							type: "POST",
							data: {
								api: "getFolders",
								dir: n.dataAttr.path
							},
							dataType: "json",
							success: cb
						});
					}
				});
			},
			error: function() { self.hideModal(); self.showMessage( self.i18n.folder_tree_load_error, "e" ) }
		});
		let form = document.forms.formCopyMove;
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'copyButton' ) {
				e.preventDefault();
				self.copyMove( items, form.getElementsByClassName( 'node-selected' )[0].dataset.path, 'copy' );
				self.hideModal();
			} else if( e.target.id == 'moveButton' ) {
				e.preventDefault();
				self.copyMove( items, form.getElementsByClassName( 'node-selected' )[0].dataset.path, 'move' );
				self.hideModal();
			} else if( e.target.id == 'cancelButton' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Copy or moves a file
	 * 
	 * @params {string} sources - array of fileCache items
	 * @params {string} destination - target directory
	 * @params {string} action - action (copy|move)
	 */
	this.copyMove = function( sources, destination, action ) {
		if( ! Array.isArray( sources ) )
			sources = [sources];
		let id = self.generateGuid();
		self.task_add( { id: id, name: self.i18n[action] + " " + ( sources.length > 1 ? sources.length : sources[0].name ) + " " + self.i18n.file_copy_to + " " + destination } );
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				dir: self.currentDir,
				api: "copyMove",
				action: action,
				filenames: sources.map( function( e ) { return e.name } ),
				destination: destination
			},
			dataType: "json",
			success: function( data ) {
				if( data.status == "OK" ) {
					self.showMessage( data.message, "s" );
				} else {
					self.showMessage( data.message, "e" );
				}
				self.refreshFileTable();
			},
			error: function() {
				self.showMessage( self.i18n.general_error, "e" );
			},
			complete: function() {
				self.task_done( id );
			}
		});
	};

	/**
	 * Shows the extract file dialog
	 *
	 * @param {string} filename - name of the file
	 */
	this.showExtractFileDialog = function( filename ) {
		let targetDirSuggestion = ( filename.lastIndexOf( '.' ) > 1 ) ? filename.substr( 0, filename.lastIndexOf( '.' ) ) : filename;
		self.showModal( Mustache.render( self.templates.extractfile, { filename: filename, destination: targetDirSuggestion, i18n: self.i18n } ) );
		let form = document.forms.formExtractFile;
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonExtract' ) {
				e.preventDefault();
				let loc = form.elements.extractTargetLocation.value;
				self.extractFile( filename, ( loc == "custom" ? form.elements.extractCustomLocation.value : loc ) ); 
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
		form.elements.extractCustomLocation.addEventListener( 'keypress', function( e ) {
			let loc = form.elements.extractTargetLocation.value;
			if( e.key == 'Enter' ) {
				e.preventDefault();
				self.extractFile( filename, ( loc == "custom" ? form.elements.extractCustomLocation.value : loc ) );
				self.hideModal();
			}
		});
		form.elements.extractCustomLocation.addEventListener( 'focus', function( e ) {
			form.elements.extractTargetLocation.value = 'custom';
		});
	};

	/**
	 * Extracts a file
	 *
	 * @param string filename - name of the file
	 * @param string destination - name of the target directory
	 */
	this.extractFile = function( filename, destination ) {
		let id = self.generateGuid();
		self.task_add( { id: id, name: "extract "+filename } );
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "extract",
				dir: self.currentDir,
				filename: filename,
				targetdir: destination
			},
			dataType: "json",
			success: function( data ) {
						if( data.status == "OK" ) {
							self.showMessage( data.message, "s" );
							self.refreshFileTable();
						} else self.showMessage( data.message, "e" );
					},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); },
			complete: function() { self.task_done( id ); }
		});
	};

	/**
	 * Shows the upload file dialog
	 */
	this.showUploadFileDialog = function() {
		self.showModal( Mustache.render( self.templates.uploadfile, { i18n: self.i18n } ) );
		let form = document.forms.formUploadFile;
		form.elements.files.addEventListener( 'change', function( e ) {
			if( e.target.files.length > 1 )
				form.elements.newfilename.readOnly = true;
			else 
				form.elements.newfilename.readOnly = false;
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonUpload' ) {
				e.preventDefault();
				let newfilename = form.elements.newfilename.value;
				let files = Array.prototype.slice.call( form.elements.files.files );
				let existing_files;
				if (files.length > 1)
					existing_files = files.map(x => x.name).filter(item => self.fileCache.map(x => x.name).includes(item));
				else if (newfilename)
					existing_files = self.fileCache.map(x => x.name).indexOf(newfilename) !== -1 ? [newfilename] : [];
				else 
					existing_files = self.fileCache.map(x => x.name).indexOf(files[0].name) !== -1 ? [files[0].name] : [];
				if (existing_files.length > 0 && self.config.confirmoverwrite)
					self.showUploadConfirmOverwrite(files, existing_files, newfilename);
				else {
					if (files.length == 1)
						self.uploadFile(files[0], newfilename);
					else
						files.forEach( function( file ) {
							self.uploadFile( file );
						});
				}
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	this.showUploadConfirmOverwrite = function(files, existing_files, newfilename=undefined) {
		self.showModal(Mustache.render(self.templates.uploadconfirmoverwrite, {files: existing_files, i18n: self.i18n}));
		let form = document.forms.formUploadConfirmOverwrite;
		form.addEventListener('click', function(e) {
			if (e.target.id == "buttonConfirm") {
				e.preventDefault();
				if (files.length == 1 && newfilename)
					self.uploadFile(files[0], newfilename);
				else
					files.forEach(function(file) {
						self.uploadFile(file);
					});
				self.hideModal();
			} else if (e.target.id == 'buttonCancel') {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Uploads a file
	 */
	this.uploadFile = function( file, newfilename ) {
		let data = new FormData();
 		data.append( 'api', 'upload' );
 		data.append( 'dir', self.currentDir );
 		data.append( 'file', file );
		if( newfilename )
			data.append( 'newfilename', newfilename );
		let id = self.generateGuid();
		$.ajax({
			url: self.api,
			type: "POST",
			data: data,
			processData: false,
			contentType: false,
			dataType: "json",
			xhr: function(){
				let xhr = $.ajaxSettings.xhr() ;
				xhr.upload.onprogress = function(evt){ self.task_update(evt.loaded/evt.total*100,id); } ;
				xhr.upload.onload = function(){ self.log('Uploading '+file.name+' done.') } ;
				return xhr ;
			},
			success: function(data) {
				if(data.status == "OK") {
					self.showMessage( self.i18n.file_upload_success, "s");
					if(data.cd == self.currentDir) self.refreshFileTable();
				} else self.showMessage( data.message, "e");
			},
			error: function() { self.showMessage( self.i18n.general_error, "e"); },
			complete: function() { self.task_done(id); }
		});
		self.task_add( { id: id, name: "Upload " + file.name } );
	};

	/**
	 * Change the permissions of a file
	 *
	 * @params object e - event object
	 * @params string name - name of the file
	 */
	this.changePermissions = function( filename, newperms ) {
		$.ajax({
			url: self.api,
			type: "POST",
			data: ({
				api: "changePermissions",
				dir: self.currentDir,
				filename: filename,
				chmod: newperms
			}),
			dataType: "json",
			success: function( data ){
				if( data.status == "OK" ) {
					self.showMessage( self.i18n.permission_change_success, "s" );
					self.refreshFileTable();
				}
				else {
					self.showMessage( data.message, "e");
				}
			},
			error: function() { self.showMessage( self.i18n.general_error, "e"); }
		});
	};

	/**
	 * Show the remote upload dialog
	 */
	this.showRemoteUploadDialog = function() {
		self.showModal( Mustache.render( self.templates.remoteupload, { i18n: self.i18n } ) );
		let form = document.forms.formRemoteUpload;
		let urlChangeHandler = function( e ) {
			form.elements.filename.value = e.target.value.substr( e.target.value.lastIndexOf( '/' ) + 1 );
		};
		form.elements.url.addEventListener( 'keypress', self.preventEnter );
		form.elements.url.addEventListener( 'change', urlChangeHandler );
		form.elements.url.addEventListener( 'keyup', urlChangeHandler );
		form.elements.filename.addEventListener( 'keypress', self.preventEnter );
		form.elements.filename.addEventListener( 'keyup', function( e ) {
			form.elements.url.removeEventListener( 'change', urlChangeHandler );
			form.elements.url.removeEventListener( 'keyup', urlChangeHandler );
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonUpload' ) {
				e.preventDefault();
				self.remoteUpload( form.elements.url.value, form.elements.filename.value, form.elements.method.value );
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Remote uploads a file
	 */
	this.remoteUpload = function( url, filename, method ) {
		let id = ifm.generateGuid();
		$.ajax({
			url: ifm.api,
			type: "POST",
			data: ({
				api: "remoteUpload",
				dir: ifm.currentDir,
				filename: filename,
				method: method,
				url: url
			}),
			dataType: "json",
			success: function(data) {
				if(data.status == "OK") {
					self.showMessage( self.i18n.file_upload_success, "s" );
					self.refreshFileTable();
				} else
					self.showMessage( data.message, "e" );
			},
			error: function() { self.showMessage( self.i18n.general_error, "e"); },
			complete: function() { self.task_done(id); }
		});
		self.task_add( { id: id, name: self.i18n.upload_remote+" "+filename } );
	};

	/**
	 * Shows the ajax request dialog
	 */
	this.showAjaxRequestDialog = function() {
		self.showModal( Mustache.render( self.templates.ajaxrequest, { i18n: self.i18n } ) );
		let form = document.forms.formAjaxRequest;
		form.elements.ajaxurl.addEventListener( 'keypress', self.preventEnter );
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonRequest' ) {
				e.preventDefault();
				self.ajaxRequest( form.elements.ajaxurl.value, form.elements.ajaxdata.value.replace( /\n/g, '&' ), form.elements.arMethod.value );
			} else if( e.target.id == 'buttonClose' ) {
				e.preventDefault();
				self.hideModal();
			}
		});
	};

	/**
	 * Performs an ajax request
	 */
	this.ajaxRequest = function( url, data, method ) {
		$.ajax({
			url	: url,
			cache	: false,
			data	: data,
			type    : method,
			success	: function( response ) { document.getElementById( 'ajaxresponse' ).innerText = response; },
			error	: function(e) { self.showMessage("Error: "+e, "e"); self.log(e); }
		});
	};

	/**
	 * Shows the search dialog
	 */
	this.showSearchDialog = function() {
		self.showModal( Mustache.render( self.templates.search, { lastSearch: self.search.lastSearch, i18n: self.i18n } ) );

		let updateResults = function( data ) {
			self.log( 'updated search results' );
			let searchresults = document.getElementById( 'searchResults' );
			if( searchresults.tBodies[0] ) searchresults.tBodies[0].remove();
			searchresults.appendChild( document.createElement( 'tbody' ) );
			searchresults.tBodies[0].innerHTML = Mustache.render( self.templates.searchresults, { items: self.search.data } );
			searchresults.tBodies[0].addEventListener( 'click', function( e ) {
				if( e.target.classList.contains( 'searchitem' ) || e.target.parentElement.classList.contains( 'searchitem' ) ) {
					e.preventDefault();
					self.changeDirectory( self.pathCombine( self.search.data.currentDir, e.target.dataset.folder || e.target.parentElement.dataset.folder ), { absolute: true });
					self.hideModal();
				}
			});
			searchresults.tBodies[0].addEventListener( 'keypress', function( e ) {
				if( e.target.classList.contains( 'searchitem' ) || e.target.parentElement.classList.contains( 'searchitem' ) ) {
					e.preventDefault();
					e.target.click();
				}
			});
		};

		updateResults( self.search.data );

		document.getElementById( 'searchPattern' ).addEventListener( 'keypress', function( e ) {
			if( e.key == 'Enter' ) {
				e.preventDefault();
				if( e.target.value.trim() === '' ) return;
				document.getElementById( 'searchResults' ).tBodies[0].innerHTML = '<tr><td style="text-align:center;"><span class="icon icon-spin5 animate-spin"></span></td></tr>';
				self.search.lastSearch = e.target.value;
				$.ajax({
					url: self.api,
					type: "POST",
					data: {
						api: "searchItems",
						dir: self.currentDir,
						pattern: e.target.value
					},
					dataType: "json",
					success: function( data ) {
						if( data.status == 'ERROR' ) {
							self.hideModal();
							self.showMessage( data.message, "e" );
						} else {
							data.forEach( function(e) {
								e.folder = ( e.name.substr( 0, e.name.lastIndexOf( '/' ) ) ) ? e.name.substr( 0, e.name.lastIndexOf( '/' ) ) : '/';
								e.linkname = e.name.substr( e.name.lastIndexOf( '/' ) + 1 );
							});
							self.search.data = data;
							if( self.search.data ) self.search.data.currentDir = self.currentDir;
							updateResults( data );
						}
					}
				});
			}
		});
	};

	/**
	 * Shows the create archive dialog
	 */
	this.showCreateArchiveDialog = function( items ) {
		self.showModal( Mustache.render( self.templates.createarchive, { i18n: self.i18n } ) );

		let form = document.forms.formCreateArchive;
		form.elements.archivename.addEventListener( 'keypress', function( e ) {
			if( e.key == 'Enter' ) {
				e.preventDefault();
				self.createArchive( items, e.target.value );
				self.hideModal();
			}
		});
		form.addEventListener( 'click', function( e ) {
			if( e.target.id == 'buttonSave' ) {
				e.preventDefault();
				self.createArchive( items, form.elements.archivename.value );
				self.hideModal();
			} else if( e.target.id == 'buttonCancel' ) {
				e.preventDefault();
				self.hideModal();
			}
		}, false );
	};

	this.createArchive = function( items, archivename ) {
		let type = "";
		if( archivename.substr( -3 ).toLowerCase() == "zip" )
			type = "zip";
		else if( archivename.substr( -3 ).toLowerCase() == "tar" )
			type = "tar";
		else if( archivename.substr( -6 ).toLowerCase() == "tar.gz" )
			type = "tar.gz";
		else if( archivename.substr( -7 ).toLowerCase() == "tar.bz2" )
			type = "tar.bz2";
		else {
			self.showMessage( self.i18n.invalid_archive_format, "e" );
			return;
		}
		let id = self.generateGuid();
		self.task_add( { id: id, name: self.i18n.create_archive+" "+archivename } );

		if( ! Array.isArray( items ) )
			items = [items];

		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "createArchive",
				dir: self.currentDir,
				archivename: archivename,
				filenames: items.map( function( e ) { return e.name; } ),
				format: type
			},
			dataType: "json",
			success: function( data ) {
				self.log( data );
				if( data.status == "OK" ) {
					self.showMessage( data.message, "s" );
					self.refreshFileTable();
				} else
					self.showMessage( data.message, "e" );
			},
			error: function() { self.showMessage( self.i18n.general_error, "e" ); },
			complete: function() { self.task_done( id ); }
		});
	};

	// --------------------
	// helper functions
	// --------------------

	/**
	 * Shows a notification
	 *
	 * @param string m - message text
	 * @param string t - message type (e: error, s: success)
	 */
	this.showMessage = function(m, t) {
		let msgType = ( t == "e" ) ? "danger" : ( t == "s" ) ? "success" : "info";
		let offsetY = ( document.activeElement.tagName == "BODY" ) ? 15 : 70;
		$.notify(
			{ message: m },
			{ type: msgType, delay: 3000, mouse_over: 'pause', 
				offset: { x: 0, y: offsetY }, 
				placement: {
					from: "bottom",
					align: "right"
				},
			element: document.activeElement }
		);
	};

	/**
	 * Combines two path components
	 *
	 * @param {string} a - component 1
	 * @param {string} b - component 2
	 * @returns {string} - combined path
	 */
	this.pathCombine = function() {
		if( !arguments.length )
			return "";
		let args = Array.prototype.slice.call(arguments);
		args = args.filter( x => typeof x === 'string' && x != '' );

		if( args.length == 0 )
			return "";

		first = "";
		while( first.length < 1 )
			first = args.shift();

		first = first.replace( /\/+$/g, '' );
		if( !args.length )
			return first;

		args.forEach( (v, i) => args[i] = v.replace( /^\/*|\/*$/g, '' ) ); // */
		args.unshift( first );
		return args.join( '/' );
	};

	/**
	 * Prevents a user to submit a form via clicking enter
	 *
	 * @param object e - click event
	 */
	this.preventEnter = function(e) {
		if( e.key == 'Enter' )
			e.preventDefault();
	};

	/**
	 * Checks if an element is part of an array
	 *
	 * @param {object} needle - search item
	 * @param {array} haystack - array to search
	 * @returns {boolean}
	 */
	this.inArray = function(needle, haystack) {
		for( let i = 0; i < haystack.length; i++ )
			if( haystack[i] == needle )
				return true;
		return false;
	};

	/**
	 * Formats a date from an unix timestamp
	 *
	 * @param {integer} timestamp - UNIX timestamp
	 */
	this.formatDate = function( timestamp ) {
		let d = new Date( timestamp * 1000 );

		return d.toLocaleString(self.config.dateLocale);
	};

	this.getClipboardLink = function( relpath ) {
		let link = window.location.origin;
		link += window.location.pathname.substr( 0, window.location.pathname.lastIndexOf( "/" ) );
		link = self.pathCombine( link, relpath );
		return link;
	}

	this.getNodeFromString = function( s ) {
		let template = document.createElement( 'template');
		template.innerHTML = s;
		return template.content.childNodes[0];
	};

	this.getNodesFromString = function( s ) {
		let template = document.createElement( 'template');
		template.innerHTML = s;
		return template.content.childNodes;
	};

	// copypasted from https://hackernoon.com/copying-text-to-clipboard-with-javascript-df4d4988697f
	this.copyToClipboard = function( str ) {
		const el = document.createElement('textarea');
		el.value = str;
		el.setAttribute('readonly', '');
		el.style.position = 'absolute';
		el.style.left = '-9999px';
		document.body.appendChild(el);
		const selected =
			document.getSelection().rangeCount > 0
			? document.getSelection().getRangeAt(0)
			: false;
		el.select();
		document.execCommand('copy');
		document.body.removeChild(el);
		if (selected) {
			document.getSelection().removeAllRanges();
			document.getSelection().addRange(selected);
		}
	};

	/**
	 * Adds a task to the taskbar.
	 *
	 * @param object task - description of the task: { id: "guid", name: "Task Name", type: "(info|warning|danger|success)" }
	 */
	this.task_add = function( task ) {
		if( ! task.id ) {
			self.log( "Error: No task id given.");
			return false;
		}
		if( ! document.querySelector( "footer" ) ) {
			let newFooter = self.getNodeFromString( Mustache.render( self.templates.footer, { i18n: self.i18n } ) );
			newFooter.addEventListener( 'click', function( e ) {
				if( e.target.name == 'showAll' || e.target.parentElement.name == "showAll" ) {
					wq = newFooter.children.wq_container.children[0].children.waitqueue;
					if( wq.style.maxHeight == '70vh' ) {
						wq.style.maxHeight = '6rem';
						wq.style.overflow = 'hidden';
					} else {
						wq.style.maxHeight = '70vh';
						wq.style.overflow = 'auto';
					}
				}
			});
			document.body.appendChild( newFooter );
			document.body.style.paddingBottom = '9rem';
		}
		task.id = "wq-"+task.id;
		task.type = task.type || "info";
		let wq = document.getElementById( 'waitqueue' );
		wq.prepend( self.getNodeFromString( Mustache.render( self.templates.task, task ) ) );
		document.getElementsByName( 'taskCount' )[0].innerText = wq.children.length;
	};

	/**
	 * Removes a task from the taskbar
	 *
	 * @param string id - task identifier
	 */
	this.task_done = function( id ) {
		document.getElementById( 'wq-' + id ).remove();
		let wq = document.getElementById( 'waitqueue' );
		if( wq.children.length == 0 ) {
			document.getElementsByTagName( 'footer' )[0].remove();
			document.body.style.paddingBottom = 0;
		} else {
			document.getElementsByName( 'taskCount' )[0].innerText = wq.children.length;
		}
	};

	/**
	 * Updates a task
	 *
	 * @param integer progress - percentage of status
	 * @param string id - task identifier
	 */
	this.task_update = function( progress, id ) {
		let progbar = document.getElementById( 'wq-'+id ).getElementsByClassName( 'progress-bar' )[0];
		progbar.style.width = progress+'%';
		progbar.setAttribute( 'aria-valuenow', progress );
	};

	/**
	 * Highlights an item in the file table
	 *
	 * @param object param - either an element id or a jQuery object
	 */
	this.highlightItem = function( direction ) {
		let highlight = function( el ) {
			[].slice.call( el.parentElement.children ).forEach( function( e ) {
				e.classList.remove( 'highlightedItem' );
			});
			el.classList.add( 'highlightedItem' );
			el.firstElementChild.firstElementChild.focus();
			if( ! self.isElementInViewport( el ) ) {
				let scrollOffset =  0;
				if( direction=="prev" )
					scrollOffset = el.offset().top - ( window.innerHeight || document.documentElement.clientHeight ) + el.height() + 15;
				else
					scrollOffset = el.offset().top - 55;
				$('html, body').animate( { scrollTop: scrollOffset }, 200 );
			}
		};


		let highlightedItem = document.getElementsByClassName( 'highlightedItem' )[0];
		if( ! highlightedItem ) {
			if( document.activeElement.classList.contains( 'ifmitem' ) )
				highlight( document.activeElement.parentElement.parentElement );
			else 
				highlight( document.getElementById( 'filetable' ).tBodies[0].firstElementChild );
		} else  {
			let newItem = ( direction=="next" ? highlightedItem.nextElementSibling : highlightedItem.previousElementSibling );
			if( newItem != null )
				highlight( newItem );
		}
	};

	/**
	 * Checks if an element is within the viewport
	 *
	 * @param object el - element object
	 */
	this.isElementInViewport = function( el ) {
		let rect = el.getBoundingClientRect();
		return (
				rect.top >= 80 &&
				rect.left >= 0 &&
				rect.bottom <= ( ( window.innerHeight || document.documentElement.clientHeight ) ) &&
				rect.right <= ( window.innerWidth || document.documentElement.clientWidth )
			   );
	};

	/**
	 * Generates a GUID
	 */
	this.generateGuid = function() {
		let result, i, j;
		result = '';
		for( j = 0; j < 20; j++ ) {
			i = Math.floor( Math.random() * 16 ).toString( 16 ).toUpperCase();
			result = result + i;
		}
		return result;
	};

	/**
	 * Logs a message if debug mode is active
	 *
	 * @param string m - message text
	 */
	this.log = function(m) {
		if (self.config.debug) {
			console.log("IFM (debug): " + m);
		}
	};

	/**
	 * Encodes a string for use in the href attribute of an anchor.
	 *
	 * @param string s - decoded string
	 */
	this.hrefEncode = function( s ) {
		return s
			.replace( /%/g, '%25' )
			.replace( /;/g, '%3B' )
			.replace( /\?/g, '%3F' )
			.replace( /:/g, '%3A' )
			.replace( /@/g, '%40' )
			.replace( /&/g, '%26' )
			.replace( /=/g, '%3D' )
			.replace( /\+/g, '%2B' )
			.replace( /\$/g, '%24' )
			.replace( /,/g, '%2C' )
			.replace( /</g, '%3C' )
			.replace( />/g, '%3E' )
			.replace( /#/g, '%23' )
			.replace( /"/g, '%22' )
			.replace( /{/g, '%7B' )
			.replace( /}/g, '%7D' )
			.replace( /\|/g, '%7C' )
			.replace( /\^/g, '%5E' )
			.replace( /\[/g, '%5B' )
			.replace( /\]/g, '%5D' )
			.replace( /\\/g, '%5C' )
			.replace( /`/g, '%60' )
		;
		// ` <- this comment prevents the vim syntax highlighting from breaking -.-
	};

	/**
	 * Handles the javascript onbeforeunload event
	 *
	 * @param object event - event object
	 */
	this.onbeforeunloadHandler = function( e ) {
		if( document.getElementById( 'waitqueue' ) ) {
			return self.i18n.remaining_tasks;
		}
	};

	/**
	 * Handles the javascript pop states
	 *
	 * @param object event - event object
	 */
	this.historyPopstateHandler = function( e ) {
		let dir = "";
		if( e.state && e.state.dir )
			dir = e.state.dir;
		self.changeDirectory( dir, { pushState: false, absolute: true } );
	};

	/**
	 * Handles keystrokes
	 *
	 * @param object e - event object
	 */
	this.handleKeystrokes = function( e ) {
		let isFormElement = function( el ) {
			do {
				if( self.inArray( el.tagName, ['INPUT', 'TEXTAREA'] ) ) {
					return true;
				}
			} while( ( el == el.parentElement ) !== false );
			return false;
		}

		if( isFormElement( e.target ) ) return;

		// global key events
		switch( e.key ) {
			case '/':
				if (self.config.search) {
					e.preventDefault();
					self.showSearchDialog();
				}
				break;
			case 'g':
				e.preventDefault();
				$('#currentDir').focus();
				return;
				break;
			case 'r':
				if (self.config.showrefresh) {
					e.preventDefault();
					self.refreshFileTable();
				}
				break;
			case 'u':
				if( self.config.upload ) {
					e.preventDefault();
					self.showUploadFileDialog();
				}
				return;
				break;
			case 'o':
				if( self.config.remoteupload ) {
					e.preventDefault();
					self.showRemoteUploadDialog();
				}
				return;
				break;
			case 'a':
				if( self.config.ajaxrequest ) {
					e.preventDefault();
					self.showAjaxRequestDialog();
				}
				return;
				break;
			case 'F':
				if( self.config.createfile ) {
					e.preventDefault();
					self.showFileDialog();
				}
				return;
				break;
			case 'D':
				if( self.config.createdir ) {
					e.preventDefault();
					self.showCreateDirDialog();
				}
				return;
				break;
			case 'h':
			case 'ArrowLeft':
			case 'Backspace':
				e.preventDefault();
				self.changeDirectory( '..' );
				return;
				break;
			case 'j':
			case 'ArrowDown':
				e.preventDefault();
				self.highlightItem('next');
				return;
				break;
			case 'k':
			case 'ArrowUp':
				e.preventDefault();
				self.highlightItem('prev');
				return;
				break;
		}

		// key events which need a highlighted item
		let element = document.getElementsByClassName( 'highlightedItem' )[0];
		if( element )
			item = self.fileCache.find( x => x.guid == element.children[0].children[0].id );
		else
			item = false;

		// Some operations do not work if the highlighted item is the parent
		// directory. In these cases the keybindings are ignored.
		let selectedItems = Array.prototype.slice.call( document.getElementsByClassName( 'selectedItem' ) )
			.map( function( e ) { return self.fileCache.find( x => x.guid === e.children[0].children[0].id ) } );

		switch( e.key ) {
			case 'Delete':
				if( self.config.delete )
					if( selectedItems.length > 0 ) {
						e.preventDefault();
						self.showDeleteDialog( selectedItems );
					} else if( item && item.name !== '..' )
						self.showDeleteDialog( item );
				return;
				break;
			case 'c':
			case 'm':
				if( self.config.copymove ) {
					if( selectedItems.length > 0 ) {
						e.preventDefault();
						self.showCopyMoveDialog( selectedItems );
					} else if( item && item.name !== '..' )
						self.showCopyMoveDialog( item );
				}
				return;
				break;
		}

		if( item )
			switch( e.key ) {
				case 'l':
				case 'ArrowRight':
					e.preventDefault();
					if( item.type == "dir" )
						self.changeDirectory( item.name );
					return;
					break;
				case 'Escape':
					if( element.children[0].children[0] == document.activeElement ) {
						e.preventDefault();
						element.classList.toggle( 'highlightedItem' );
					}
					return;
					break;
				case ' ':
				case 'Enter':
					if( element.children[0].children[0] == document.activeElement ) { 
						if( e.key == 'Enter' && element.classList.contains( 'isDir' ) ) {
							e.preventDefault();
							e.stopPropagation();
							self.changeDirectory( item.name );
						} else if( e.key == ' ' && item.name != ".." ) {
							e.preventDefault();
							e.stopPropagation();
							element.classList.toggle( 'selectedItem' );
						}
					}
					return;
					break;
				case 'e':
					if( self.config.edit && item.eaction == "edit" ) {
						e.preventDefault();
						self.editFile( item.name );
					} else if( self.config.extract && item.eaction == "extract" ) {
						e.preventDefault();
						self.showExtractFileDialog( item.name );
					}
					return;
					break;
				case 'n':
					e.preventDefault();
					if( self.config.rename ) {
						self.showRenameFileDialog( item.name );
					}
					return;
					break;
			}
	};

	/**
	 * Initializes the application
	 */
	this.initLoadConfig = function() {
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "getConfig"
			},
			dataType: "json",
			success: function(d) {
				self.config = d;
				if( self.config.ace_includes ) {
					self.ace = {};
					self.ace.files = self.config.ace_includes.split( '|' ).filter( x => x != "" );
					self.ace.modes = self.ace.files
						.filter( function(f){ if( f.substr(0,5)=="mode-" ) return f; } )
						.map( function(f){ return f.substr(5); } )
					self.ace.modes.unshift( "text" );
				}
				self.log( "configuration loaded" );
				self.initLoadTemplates();
			},
			error: function() {
				throw new Error( self.i18n.load_config_error );
			}
		});
	};
	
	this.initLoadTemplates = function() {
		// load the templates from the backend
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "getTemplates"
			},
			dataType: "json",
			success: function(d) {
				self.templates = d;
				self.log( "templates loaded" );
				self.initLoadI18N();
			},
			error: function() {
				throw new Error( self.i18n.load_template_error );
			}
		});
	};

	this.initLoadI18N = function() {
		// load I18N from the backend
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "getI18N"
			},
			dataType: "json",
			success: function(d) {
				self.i18n = d;
				self.log("I18N loaded");
				self.initCheckAuth();
			},
			error: function() {
				throw new Error( self.i18n.load_text_error );
			}
		});
	};
	
	this.initCheckAuth = function() {
		$.ajax({
			url: self.api,
			type: "POST",
			data: {
				api: "checkAuth"
			},
			dataType: "json",
			success: function(d) {
				if (d.status == "ERROR") {
					self.showModal(Mustache.render(self.templates.login, {i18n: self.i18n}), {large: true}, {
						backdrop: 'static',
						keyboard: false
					});
					var form = document.forms.loginForm;
					form.addEventListener('click', function(e) {
						e.preventDefault();
						if (e.target.id == "buttonLogin") {
							$.ajax({
								url: self.api,
								type: "POST",
								data: {
									api: "checkAuth",
									inputLogin: form.elements[0].value,
									inputPassword: form.elements[1].value
								},
								dataType: "json",
								success: function(e) {
									if (e.status != "ERROR") {
										self.hideModal();
										self.initApplication();
									} else {
										var errorlogin = document.getElementsByClassName('alert')[0];
										errorlogin.classList.remove("d-none");
										errorlogin.innerHTML = e.message;
									}

								},
								error: function(e) {
									var errorlogin = document.getElementsByClassName('alert')[0];
									errorlogin.classList.remove("d-none");
									errorlogin.innerHTML = "Authentication failed";
								}
							});
						}
					});
				} else {
					self.initApplication();
				}
			}
		});
	};
	
	this.initApplication = function() {
		self.rootElement.innerHTML = Mustache.render(
				self.templates.app,
				{
					showpath: "/",
					config: self.config,
					i18n: self.i18n,
					generic: {
						hasdropdown: (!!self.config.ajaxrequest||!!self.config.remoteupload||!!self.config.auth)
					},
					ftbuttons: function(){
						return ( self.config.edit || self.config.rename || self.config.delete || self.config.zipnload || self.config.extract );
					}
				});

		// bind static buttons
		if (el_r = document.getElementById('refresh'))
			el_r.onclick = function() { self.refreshFileTable(); };
		if (el_s = document.getElementById('search'))
			el_s.onclick = function() { self.showSearchDialog(); };
		//document.getElementById( 'refresh' ).onclick = function() { self.refreshFileTable(); };
		//document.getElementById( 'search' ).onclick = function() { self.showSearchDialog(); };
		if( self.config.createfile )
			document.getElementById( 'createFile' ).onclick = function() { self.showFileDialog(); };
		if( self.config.createdir )
			document.getElementById( 'createDir' ).onclick = function() { self.showCreateDirDialog(); };
		if( self.config.upload )
			document.getElementById( 'upload' ).onclick = function() { self.showUploadFileDialog(); };
		document.getElementById( 'currentDir' ).onkeypress = function( e ) {
			if( e.keyCode == 13 ) {
				e.preventDefault();
				self.changeDirectory( e.target.value, { absolute: true } );
				e.target.blur();
			}
		};
		if( self.config.remoteupload )
			document.getElementById( 'buttonRemoteUpload' ).onclick = function() { self.showRemoteUploadDialog(); };
		if( self.config.ajaxrequest )
			document.getElementById( 'buttonAjaxRequest' ).onclick = function() { self.showAjaxRequestDialog(); };
		if( self.config.upload )
			document.addEventListener( 'dragover', function( e ) {
				if( Array.prototype.indexOf.call(e.dataTransfer.types, "Files") != -1 ) {
					e.preventDefault();
					e.stopPropagation();
					let div = document.getElementById( 'filedropoverlay' );
					div.style.display = 'block';
					div.ondrop = function( e ) {
						e.preventDefault();
						e.stopPropagation();
						let files = Array.from(e.dataTransfer.files);
						let existing_files = files.map(x => x.name).filter(item => self.fileCache.map(x => x.name).includes(item));
						if (existing_files.length > 0 && self.config.confirmoverwrite)
							self.showUploadConfirmOverwrite(files, existing_files);
						else 
							files.forEach(function(file) {
								self.uploadFile(file);
							});
						if( e.target.id == 'filedropoverlay' )
							e.target.style.display = 'none';
						else if( e.target.parentElement.id == 'filedropoverlay' ) {
							e.target.parentElement.style.display = 'none';
						}
					};
					div.ondragleave = function( e ) {
						e.preventDefault();
						e.stopPropagation();
						if( e.target.id == 'filedropoverlay' )
							e.target.style.display = 'none';
					};
				} else {
					let div = document.getElementById( 'filedropoverlay' );
					if( div.style.display == 'block' )
						div.stye.display == 'none';
				}
			});

		// drag and drop of filetable items
		if( self.config.copymove ) {
			let isFile = function(e) { return Array.prototype.indexOf.call(e.dataTransfer.types, "Files") != -1 };
			document.addEventListener( 'dragstart', function( e ) {
				let selectedItems = document.getElementsByClassName( 'selectedItem' );
				let data;
				if( selectedItems.length > 0 ) 
					data = self.fileCache.filter(
							x => self.inArray(
								x.guid,
								[].slice.call( selectedItems ).map( function( e ) { return e.dataset.id; } )
								)
							);
				else 
					data = self.fileCache.find( x => x.guid === e.target.dataset.id );
				e.dataTransfer.setData( 'text/plain', JSON.stringify( data ) );
				let dragImage = document.createElement( 'div' );
				dragImage.style.display = 'inline';
				dragImage.style.padding = '10px';
				dragImage.innerHTML = '<span class="icon icon-folder-open-empty"></span> '+self.i18n.move+' '+( data.length || data.name );
				document.body.appendChild( dragImage );
				setTimeout(function() {
					dragImage.remove();
				});
				e.dataTransfer.setDragImage( dragImage, 0, 0 );
			});
			document.addEventListener( 'dragover', function( e ) { if( ! isFile( e ) && e.target.parentElement.classList.contains( 'isDir' ) ) e.preventDefault(); } );
			document.addEventListener( 'dragenter', function( e ) {
				if( ! isFile( e ) && e.target.tagName == "TD" && e.target.parentElement.classList.contains( 'isDir' ) )
					e.target.parentElement.classList.add( 'highlightedItem' );
			});
			document.addEventListener( 'dragleave', function( e ) {
				if( ! isFile( e ) && e.target.tagName == "TD" && e.target.parentElement.classList.contains( 'isDir' ) )
					e.target.parentElement.classList.remove( 'highlightedItem' );
			});
			document.addEventListener( 'drop', function( e ) {
				if( ! isFile( e ) && e.target.tagName == "TD" && e.target.parentElement.classList.contains( 'isDir' ) ) {
					e.preventDefault();
					e.stopPropagation();
					try {
						let source = JSON.parse( e.dataTransfer.getData( 'text' ) );
						self.log( "source:" );
						self.log( source );
						let destination = self.fileCache.find( x => x.guid === e.target.firstElementChild.id );
						if( ! Array.isArray( source ) )
							source = [source];
						if( source.find( x => x.name === destination.name ) )
							self.showMessage( "Source and destination are equal." );
						else
							self.copyMove( source, destination.name, "move" );
					} catch( e ) {
						self.log( e );
					} finally {
						[].slice.call( document.getElementsByClassName( 'highlightedItem' ) ).forEach( function( e ) {
							e.classList.remove( 'highlightedItem' );
						});
					}
				}
			});
		}
		
		// handle keystrokes
		document.onkeydown = self.handleKeystrokes;

		// handle history manipulation
		window.onpopstate = self.historyPopstateHandler;

		// handle window.onbeforeunload
		window.onbeforeunload = self.onbeforeunloadHandler;

		// load initial file table
		if( window.location.hash ) {
			self.changeDirectory( decodeURIComponent( window.location.hash.substring( 1 ) ) );
		} else {
			this.refreshFileTable();
		}
	};

	this.init = function(id) {
		self.rootElement = document.getElementById(id);
		this.initLoadConfig();
	};
}

</script>

f00bar;
	}

	public function getHTMLHeader() {
		print '<!DOCTYPE HTML>
		<html>
			<head>
				<title>IFM - improved file manager</title>
				<meta charset="utf-8">
				<meta http-equiv="X-UA-Compatible" content="IE=edge">
				<meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1.0, shrink-to-fit=no">';
		$this->getCSS();
		print '</head><body>';
	}

	public function getHTMLFooter() {
		print '</body></html>';
	}

	/**
	 * main functions
	 */

	public function run($mode="standalone") {
		try {
			if (!is_dir(realpath($this->config['root_dir'])) || !is_readable(realpath($this->config['root_dir'])))
				throw new IFMException("Cannot access root_dir.", false);

			chdir(realpath($this->config['root_dir']));

			$this->mode = $mode;
			if (isset($_REQUEST['api']) || $mode == "api")
				$this->jsonResponse($this->dispatch());
			elseif ($mode == "standalone")
				$this->getApplication();
			else
				$this->getInlineApplication();
		} catch (IFMException $e) {
			$this->jsonResponse(["status" => "ERROR", "message" => $e->getMessage()]);
		} catch (Exception $e) {
			$this->jsonResponse(["status" => "ERROR", "message" => $e->getMessage()]);
		}
	}

	private function dispatch() {
		// APIs which do not need authentication
		switch ($_REQUEST['api']) {
			case "checkAuth":
				if ($this->checkAuth())
					return ["status" => "OK", "message" => "Authenticated"];
				else
					return ["status" => "ERROR", "message" => "Not authenticated"];
			case "getConfig":
				return $this->getConfig();
			case "getTemplates":
				return $this->getTemplates();
			case "getI18N":
				return $this->getI18N($_REQUEST);
			case "logout":
				session_start();
				session_unset();
				header("Location: " . strtok($_SERVER["REQUEST_URI"], '?'));
				exit;
		}

		// check authentication
		if (!$this->checkAuth())
			throw new IFMException("Not authenticated");

		// api requests which work without a valid working directory
		switch ($_REQUEST['api']) {
			case "getRealpath":
				if (isset($_REQUEST["dir"]) && $_REQUEST["dir"] != "")
					return ["realpath" => $this->getValidDir($_REQUEST["dir"])];
				else
					return ["realpath" => ""];
			case "getFiles":
				if (isset($_REQUEST["dir"]) && $this->isPathValid($_REQUEST["dir"]))
					return $this->getFiles($_REQUEST["dir"]);
				else
					return $this->getFiles("");
			case "getFolders":
				return $this->getFolders($_REQUEST);
		}
		
		// checking working directory
		if (!isset($_REQUEST["dir"]) || !$this->isPathValid($_REQUEST["dir"]))
			throw new IFMException($this->l("invalid_dir"));

		$this->chDirIfNecessary($_REQUEST['dir']);
		switch ($_REQUEST["api"]) {
			case "createDir":	return $this->createDir($_REQUEST);
			case "saveFile":	return $this->saveFile($_REQUEST);
			case "getContent":	return $this->getContent($_REQUEST);
			case "delete":		return $this->deleteFiles($_REQUEST);
			case "rename":		return $this->renameFile($_REQUEST);
			case "download":	return $this->downloadFile($_REQUEST);
			case "extract":		return $this->extractFile($_REQUEST);
			case "upload":		return $this->uploadFile($_REQUEST);
			case "copyMove":	return $this->copyMove($_REQUEST);
			case "changePermissions": return $this->changePermissions($_REQUEST);
			case "zipnload":	return $this->zipnload($_REQUEST);
			case "remoteUpload":	return $this->remoteUpload($_REQUEST);
			case "searchItems":	return $this->searchItems($_REQUEST);
			case "getFolderTree":	return $this->getFolderTree($_REQUEST);
			case "createArchive":	return $this->createArchive($_REQUEST);
			case "proxy":		return $this->downloadFile($_REQUEST, false);
			default:
				throw new IFMException($this->l("invalid_action"));
		}
	}

	/**
	 * api functions
	 */

	private function getI18N($lang="en") {
		if (in_array($lang, array_keys($this->i18n)))
			return array_merge($this->i18n['en'], $this->i18n[$lang]);
		else
			return $this->i18n['en'];
	}

	private function getTemplates() {
		// templates
		$templates = [];
		$templates['app'] = <<<'f00bar'
<nav class="navbar navbar-expand-lg navbar-dark 
	{{^config.inline}}
	fixed-top
	{{/config.inline}} bg-dark">
	<div class="container">
		<a class="navbar-brand" href="#">IFM</a>
		<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="true" aria-label="{{i18n.toggle_nav}}">
			<span class="navbar-toggler-icon"></span>
		</button>
		<div class="collapse navbar-collapse" id="navbarCollapse">
			<div class="navbar-nav mr-auto">
				<form class="form-inline mt-2 mt-md-0">
					<div class="input-group">
						<div class="input-group-prepend">
							<span class="input-group-text" id="currentDirLabel">{{i18n.path_content}} {{showpath}}</span>
						</div>
						<input class="form-control" id="currentDir" aria-describedby="currentDirLabel" type="text">
					</div>      
				</form>
			</div>
			<ul class="navbar-nav">
				{{#config.showrefresh}}
				<li class="nav-item">
					<a id="refresh" class="nav-link"><span title="{{i18n.refresh}}" class="icon icon-arrows-cw"></span> <span class="d-inline d-lg-none">{{i18n.refresh}}</span></a>
				</li>
				{{/config.showrefresh}}
				{{#config.search}}
				<li class="nav-item">
					<a id="search" class="nav-link"><span title="{{i18n.search}}" class="icon icon-search"></span> <span class="d-inline d-lg-none">{{i18n.search}}</span></a>
				</li>
				{{/config.search}}
				{{#config.upload}}
				<li class="nav-item">
					<a id="upload" class="nav-link"><span title="{{i18n.upload}}" class="icon icon-upload"></span> <span class="d-inline d-lg-none">{{i18n.upload}}</span></a>
				</li>
				{{/config.upload}}
				{{#config.createfile}}
				<li class="nav-item">
					<a id="createFile" class="nav-link"><span title="{{i18n.file_new}}" class="icon icon-doc-inv"></span> <span class="d-inline d-lg-none">{{i18n.file_new}}</span></a>
				</li>
				{{/config.createfile}}
				{{#config.createdir}}
				<li class="nav-item">
					<a id="createDir" class="nav-link"><span title="{{i18n.folder_new}}" class="icon icon-folder"></span> <span class="d-inline d-lg-none">{{i18n.folder_new}}</span></a>
				</li>
				{{/config.createdir}}
				{{#generic.hasdropdown}}
				<li class="nav-item dropdown">
					<a class="nav-link dropdown-toggle" href="#" id="menu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"></a>
					<div class="dropdown-menu dropdown-menu-right" aria-labelledby="menu">
						{{#config.remoteupload}}
						<a class="dropdown-item" id="buttonRemoteUpload"><span class="icon icon-upload-cloud"></span> {{i18n.upload_remote}}</a>
						{{/config.remoteupload}}
						{{#config.ajaxrequest}}
						<a class="dropdown-item" id="buttonAjaxRequest"><span class="icon icon-link-ext"></span> {{i18n.ajax_request}}</a>
						{{/config.ajaxrequest}}
						{{#config.auth}}
						<a class="dropdown-item" href="?api=logout" id="buttonLogout"><span class="icon icon-logout"></span> {{i18n.logout}}</a>
						{{/config.auth}}
					</div>
				</li>
				{{/generic.hasdropdown}}
			</ul>
		</div>
	</div>
</nav>
<div id="filedropoverlay">
	<h1>{{i18n.upload_drop}}</h1>
</div>
<main role="main">
	<div class="container">
		<table id="filetable" class="table">
			<thead>
				<tr>
					<th class="th-meta hidden never" data-visible="false"></th>
					<th class="th-filename all">{{i18n.filename}}</th>
					{{#config.download}}
					<th class="th-download all"></th>
					{{/config.download}}
					{{#config.showlastmodified}}
					<th class="th-lastmod tablet-l desktop">{{i18n.last_modified}}</th>
					{{/config.showlastmodified}}
					{{#config.showfilesize}}
					<th class="th-size tablet-p tablet-l desktop">{{i18n.size}}</th>
					{{/config.showfilesize}}
					{{#config.showpermissions}}
					<th class="th-permissions d-none d-md-table-cell tablet-p tablet-l desktop">{{i18n.permissions}}</th>
					{{/config.showpermissions}}
					{{#config.showowner}}
					<th class="th-owner d-none d-lg-table-cell tablet-l desktop">{{i18n.owner}}</th>
					{{/config.showowner}}
					{{#config.showgroup}}
					<th class="th-group d-none d-xl-table-cell desktop">{{i18n.group}}</th>
					{{/config.showgroup}}
					<th class="th-buttons buttons all"></th>
				</tr>
			</thead>
			<tbody>
			</tbody>
		</table>        
	</div>
	<div class="container">
		<div class="card ifminfo">
			<div class="card-body p-2">
				<div style="float:left; padding-left: 10px;">{{i18n.footer}} <a href='https://github.com/misterunknown/ifm/tree/v4.0' target=_blank>v4.0</a></div>
				<a style="float:right; padding-right: 10px;" href="http://github.com/misterunknown/ifm" target="_blank">{{i18n.github}}</a>
			</div>
		</div>
	</div>
</main>

f00bar;
		$templates['login'] = <<<'f00bar'
<style type="text/css">
html,
body {
  height: 100%;
}

body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

.form-signin {
  width: 100%;
  max-width: 420px;
  padding: 15px;
  margin: auto;
}

.form-label-group {
  position: relative;
  margin-bottom: 1rem;
}

.form-label-group > input,
.form-label-group > label {
  height: 3.125rem;
  padding: .75rem;
}

.form-label-group > label {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  margin-bottom: 0; /* Override default `<label>` margin */
  line-height: 1.5;
  color: #495057;
  pointer-events: none;
  cursor: text; /* Match the input under the label */
  border: 1px solid transparent;
  border-radius: .25rem;
  transition: all .1s ease-in-out;
}

.form-label-group input::-webkit-input-placeholder {
  color: transparent;
}

.form-label-group input:-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-moz-placeholder {
  color: transparent;
}

.form-label-group input::placeholder {
  color: transparent;
}

.form-label-group input:not(:placeholder-shown) {
  padding-top: 1.25rem;
  padding-bottom: .25rem;
}

.form-label-group input:not(:placeholder-shown) ~ label {
  padding-top: .25rem;
  padding-bottom: .25rem;
  font-size: 12px;
  color: #777;
}

/* Fallback for Edge
-------------------------------------------------- */
@supports (-ms-ime-align: auto) {
  .form-label-group > label {
    display: none;
  }
  .form-label-group input::-ms-input-placeholder {
    color: #777;
  }
}

/* Fallback for IE
-------------------------------------------------- */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  .form-label-group > label {
    display: none;
  }
  .form-label-group input:-ms-input-placeholder {
    color: #777;
  }
}
</style>

<div class="modal-header">
  <h3 class="modal-title text-center w-100">IFM {{i18n.login}}</h3>
</div>
<div class="modal-body">
  <form id="loginForm" class="form-signin" method="post">
    {{error}}
    <div class="form-label-group">
      <input type="text" name="inputLogin" id="inputLogin" class="form-control" placeholder="{{i18n.username}}" required="" autofocus="">
      <label for="inputLogin">{{i18n.username}}</label>
    </div>
    <div class="form-label-group">
      <input type="password" name="inputPassword" id="inputPassword" class="form-control" placeholder="{{i18n.password}}" required="">
      <label for="inputPassword">{{i18n.password}}</label>
    </div>
    <div class="alert alert-danger d-none" role="alert"></div>

    <button id="buttonLogin" class="btn btn-lg btn-primary btn-block" type="submit">{{i18n.login}}</button>
  </form>
</div>
f00bar;
		$templates['filetable'] = <<<'f00bar'
{{#items}}
<tr class="clickable-row {{rowclasses}}" {{{dragdrop}}} data-id="{{guid}}" data-filename="{{name}}" data-eaction="{{eaction}}">
	{{#fixtop}}
	<td data-order="{{fixtop}}"></td>
	{{/fixtop}}
	{{^fixtop}}
	<td data-order="0"></td>
	{{/fixtop}}
	<td>
		<a href="{{{link}}}" tabindex="0" id="{{guid}}" class="ifmitem" {{{popover}}} data-type="{{type}}">
			<span class="{{icon}}"></span>
			{{linkname}}
		</a>
	</td>
	{{#config.download}}
	<td>
		<a href="{{download.link}}"><span class="{{download.icon}}"></span></a>
	</td>
	{{/config.download}}
	{{#config.showlastmodified}}
	<td data-order="{{lastmodified}}">{{lastmodified_hr}}</td>
	{{/config.showlastmodified}}
	{{#config.showfilesize}}
	<td data-order="{{size_raw}}">{{size}}</td>
	{{/config.showfilesize}}
	{{#config.showpermissions}}
	<td class="d-none d-md-table-cell">
		<input type="text" size="11" name="newpermissions" class="form-control {{filepermmode}}" value="{{fileperms}}" data-filename="{{name}}" {{readonly}}>
	</td>
	{{/config.showpermissions}}
	{{#config.showowner}}
	<td class="d-none d-lg-table-cell">
		{{owner}}
	</td>
	{{/config.showowner}}
	{{#config.showgroup}}
	<td class="d-none d-xl-table-cell">
		{{group}}
	</td>
	{{/config.showgroup}}
	<td>
		{{#button}}
		<a tabindex="0" name="do-{{action}}" data-id="{{guid}}">
			<span class="{{icon}}" title="{{title}}"</span>
		</a>
		{{/button}}
	</td>
</tr>
{{/items}}

f00bar;
		$templates['footer'] = <<<'f00bar'
<footer class="footer mt-auto py-3">
	<div id="wq_container" class="container">
		<div class="row">
			<div class="col-md-2 mb-1">
				<a type="button" class="btn btn-light btn-block" name="showAll">{{i18n.tasks}} <span class="badge badge-secondary" name="taskCount">1</span></a>
			</div>
			<div id="waitqueue" class="col-md-10">
			</div>
		</div>
	</div>
</footer>

f00bar;
		$templates['task'] = <<<'f00bar'
<div id="{{id}}" class="card mb-1">
	<div class="card-body">
		<div class="progress">
			<div class="progress-bar bg-{{type}} progress-bar-striped active" role="progressbar" aria-valuenow="100" aria-valuemax="100" style="width:100%">
			{{name}}
			</div>
		</div>
	</div>
</div>

f00bar;
		$templates['ajaxrequest'] = <<<'f00bar'
<form id="formAjaxRequest">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="ajaxurl">URL</label>
			<input class="form-control" type="url" id="ajaxurl" required>
		</div>
		<div class="form-group">
			<label for="ajaxdata">{{i18n.data}}</label>
			<textarea class="form-control" id="ajaxdata"></textarea>
		</div>
		<div class="form-group">
			<legend>{{i18n.method}}</legend>
			<div class="form-check form-check-inline">
				<input class="form-check-input" type="radio" id="radioget" name="arMethod" value="GET">
				<label class="form-check-label" for="radioget">GET</label>
			</div>
			<div class="form-check form-check-inline">
				<input class="form-check-input" type="radio" id="radiopost" name="arMethod" value="POST" checked="checked">
				<label class="form-check-label" for="radiopost">POST</label>
			</div>
		</div>
		<button type="button" class="btn btn-success" id="buttonRequest">{{i18n.request}}</button>
		<button type="button" class="btn btn-danger" id="buttonClose">{{i18n.cancel}}</button>
		<div class="form-group">
			<label for="ajaxresponse">{{i18n.response}}</label>
			<textarea class="form-control" id="ajaxresponse"></textarea>
		</div>
	</fieldset>
</div>
</form>

f00bar;
		$templates['copymove'] = <<<'f00bar'
<form id="formCopyMove">
<fieldset>
	<div class="modal-body">
		<div class="form-group">
			<label for="copyMoveTree">{{i18n.select_destination}}:</label>
			<div id="copyMoveTree"><div class="text-center"><span class="icon icon-spin5 animate-spin"></span></div></div>
		</div>
	</div>
	<div class="modal-footer">
		<button type="button" class="btn btn-secondary" id="copyButton">{{i18n.copy}}</button>
		<button type="button" class="btn btn-secondary" id="moveButton">{{i18n.move}}</button>
		<button type="button" class="btn btn-danger" id="cancelButton">{{i18n.cancel}}</button>
	</div>
</fieldset>
</form>

f00bar;
		$templates['createdir'] = <<<'f00bar'
<form id="formCreateDir">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="dirname">{{i18n.directoryname}}:</label>
			<input class="form-control" id="dirname" type="text" name="dirname" value="" />
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-success" id="buttonSave">{{i18n.create}}</button>
	<button type="button" class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['createarchive'] = <<<'f00bar'
<form id="formCreateArchive">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="archivename">{{i18n.archivename}}:</label>
			<input id="archivename" class="form-control" type="text" name="archivename" value="" />
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-success" id="buttonSave">{{i18n.save}}</button>
	<button type="button" class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['deletefile'] = <<<'f00bar'
<form id="formDeleteFiles">
<div class="modal-body">
	{{#multiple}}
	<label>{{i18n.file_delete_confirm}} <code>{{count}}</code>?</label>
	{{/multiple}}
	{{^multiple}}
	<label>{{i18n.file_delete_confirm}} <code>{{filename}}</code>?</label>
	{{/multiple}}
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-danger" id="buttonYes">{{i18n.delete}}</button>
	<button type="button" class="btn btn-secondary" id="buttonNo">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['extractfile'] = <<<'f00bar'
<form id="formExtractFile">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label>{{i18n.extract_filename}} {{filename}}:</label>
			<div class="input-group">
				<div class="input-group-prepend">
					<div class="input-group-text">
						<input type="radio" name="extractTargetLocation" value="./" checked="checked">
					</div>
				</div>
				<input class="form-control" type="text" placeholder="Current directory" readonly>
			</div>
			<div class="input-group">
				<div class="input-group-prepend">
					<div class="input-group-text">
						<input type="radio" name="extractTargetLocation" value="./{{destination}}">
					</div>
				</div>
				<input class="form-control" type="text" placeholder="{{destination}}" readonly>
			</div>
			<div class="input-group">
				<div class="input-group-prepend">
					<div class="input-group-text">
						<input type="radio" name="extractTargetLocation" value="custom">
					</div>
				</div>
				<input id="extractCustomLocation" type="text" class="form-control" placeholder="Custom location" value="">
			</div>
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-primary" id="buttonExtract">{{i18n.extract}}</button>
	<button type="button" class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['file'] = <<<'f00bar'
<form id="formFile">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="filename">{{i18n.filename}}:</label>
			<input type="text" class="form-control" name="filename" id="filename" value="{{filename}}">
		</div>
		<div class="form-group" id="content" name="content"></div>
		<button type="button" class="btn btn-secondary" id="editoroptions">{{i18n.editor_options}}</button>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" id="buttonSaveNotClose" class="btn btn-success">{{i18n.save}}</button>
	<button type="button" id="buttonClose" class="btn btn-danger">{{i18n.close}}</button>
</div>
</form>

f00bar;
		$templates['file_editoroptions'] = <<<'f00bar'
<form>
	<div class="form-group">
		<div class="form-check">
			<input class="form-check-input" type="checkbox" id="editor-wordwrap" 
				{{#wordwrap}}
				checked="checked"
				{{/wordwrap}}
			>
			<label class="form-check-label" for="editor-wordwrap">{{i18n.word_wrap}}</label>
		</div>
		<div class="form-check">
			<input class="form-check-input" type="checkbox" id="editor-softtabs"
				{{#softtabs}}
				checked="checked"
				{{/softtabs}}
			>
			<label class="form-check-label" for="editor-softtabs">{{i18n.soft_tabs}}</label>
		</div>
	</div>
	<div class="input-group">
		<div class="input-group-prepend">
			<span class="input-group-text" id="editor-tabsize-label">{{i18n.tab_size}}</span>
		</div>
		<input class="form-control" type="number" min="1" max="9" maxlength="1" id="editor-tabsize" title="{{i18n.tab_size}}" value="{{tabsize}}" aria-describedby="editor-tabsize-label">
	</div>
	{{#ace_includes}}
	<select class="form-control selectpicker" data-toggle="dropdown" data-live-search="true" data-size="15" id="editor-syntax">
		{{#modes}}
		<option value="ace/mode/{{.}}" {{{ace_mode_selected}}}>{{.}}</option>
		{{/modes}}
	</select>
	{{/ace_includes}}
</form>

f00bar;
		$templates['remoteupload'] = <<<'f00bar'
<form id="formRemoteUpload">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="url">{{i18n.upload_remote_url}}</label>
			<input class="form-control" type="url" id="url" name="url" required>
		</div>
		<div class="form-group">
			<label for="filename">{{i18n.filename}}</label>
			<input class="form-control" type="text" id="filename" name="filename" required>
		</div>
		<div class="form-group">
			<legend>{{i18n.method}}</legend>
			<div class="form-check form-check-inline">
				<input class="form-check-input" type="radio" id="radiocurl" name="method" value="curl" checked="checked">
				<label class="form-check-label" for="radiocurl">cURL</label>
			</div>
			<div class="form-check form-check-inline">
				<input class="form-check-input" type="radio" id="radiofile" name="method" value="file">
				<label class="form-check-label" for="radiofile">file</label>
			</div>
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-primary" id="buttonUpload">{{i18n.upload}}</button>
	<button type="button" class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['renamefile'] = <<<'f00bar'
<form id="formRenameFile">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="newname">{{i18n.rename_filename}} {{filename}}:</label>
			<input id="newname" class="form-control" type="text" name="newname" value="{{filename}}" />
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button type="button" class="btn btn-secondary" id="buttonRename">{{i18n.file_rename}}</button>
	<button type="button" class="btn btn-danger" id="buttonCancel">{{i18n.cancel}} </button>
</div>
</form>

f00bar;
		$templates['search'] = <<<'f00bar'
<form id="searchForm">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<label for="searchPattern">{{i18n.search}}</label>
			<input type="search" class="form-control" id="searchPattern" name="pattern" autocomplete="off" value="{{lastSearch}}">
		</div>
		<table id="searchResults" class="table">
		</table>
	</fieldset>
</div>
</form>

f00bar;
		$templates['searchresults'] = <<<'f00bar'
{{#items}}
<tr class="{{rowclasses}}" data-filename="{{name}}">
	<td>
		<a tabindex="0" id="{{guid}}" class="searchitem" {{{popover}}} data-type="{{type}}" data-folder="{{folder}}">
			<span class="{{icon}}"></span> {{linkname}} <span style="color:#999">({{folder}})</span>
		</a>
	</td>
</tr>
{{/items}}
{{^items}}
<tr>
	<td>
		No results found.
	</td>
</tr>
{{/items}}

f00bar;
		$templates['uploadfile'] = <<<'f00bar'
<form id="formUploadFile">
<div class="modal-body">
	<fieldset>
		<div class="form-group">
			<div class="custom-file">
				<label class="custom-file-label" for="fileselect">{{i18n.upload_file}}</label>
				<input class="custom-file-input" type="file" name="files" id="fileselect" multiple>
			</div>
		</div>
		<div class="form-group">
			<label for="filename">{{i18n.filename_new}}</label>
			<input class="form-control" type="text" name="newfilename" id="filename">
		</div>
	</fieldset>
</div>
<div class="modal-footer">
	<button class="btn btn-primary" id="buttonUpload">{{i18n.upload}}</button>
	<button class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		$templates['uploadconfirmoverwrite'] = <<<'f00bar'
<form id="formUploadConfirmOverwrite">
<div class="modal-body">
{{i18n.upload_overwrite_hint}}
<ul>
{{#files}}
<li>{{.}}</li>
{{/files}}
</ul>
{{i18n.upload_overwrite_confirm}}
</div>
<div class="modal-footer">
	<button class="btn btn-primary" id="buttonConfirm">{{i18n.upload}}</button>
	<button class="btn btn-danger" id="buttonCancel">{{i18n.cancel}}</button>
</div>
</form>

f00bar;
		return $templates;
	}

	private function getFiles($dir) {
		$this->chDirIfNecessary($dir);

		unset($files); unset($dirs); $files = []; $dirs = [];

		if ($handle = opendir(".")) {
			while (false !== ($result = readdir($handle))) {
				if ($result == basename($_SERVER['SCRIPT_NAME']) && getcwd() == $this->initialWD)
					continue;
				elseif (($result == ".htaccess" || $result==".htpasswd") && $this->config['showhtdocs'] != 1)
					continue;
				elseif ($result == ".")
					continue;
				elseif ($result != ".." && substr($result, 0, 1) == "." && $this->config['showhiddenfiles'] != 1)
					continue;
				else {
					$item = $this->getItemInformation($result);
					if ($item['type'] == "dir")
						$dirs[] = $item;
					else
						$files[] = $item;
				}
			}
			closedir($handle);
		}
		array_multisort(array_column($dirs, 'name'), SORT_ASC, SORT_NATURAL | SORT_FLAG_CASE, $dirs);
		array_multisort(array_column($files, 'name'), SORT_ASC, SORT_NATURAL | SORT_FLAG_CASE, $files);

		return array_merge($dirs, $files);
	}

	private function getItemInformation($name) {
		$item = [];
		$item["name"] = $name;
		if (is_dir($name)) {
			$item["type"] = "dir";
			if ($name == "..")
				$item["icon"] = "icon icon-up-open";
			else
				$item["icon"] = "icon icon-folder-empty";
		} else {
			$item["type"] = "file";
			if (in_array(substr($name, -7), [".tar.gz", ".tar.xz"]))
				$type = substr($name, -6);
			elseif (substr($name, -8) == ".tar.bz2")
				$type = "tar.bz2";
			else
				$type = substr(strrchr($name, "."), 1);
			$item["icon"] = $this->getTypeIcon($type);
			$item["ext"] = strtolower($type);
			if (!$this->config['disable_mime_detection'])
				$item["mime_type"] = mime_content_type($name);
		}
		if ($this->config['showlastmodified'] == 1)
			$item["lastmodified"] = filemtime($name);
		if ($this->config['showfilesize'] == 1) {
			if ($item['type'] == "dir") {
				$item['size_raw'] = 0;
				$item['size'] = "";
			} else {
				$item["size_raw"] = filesize($name);
				if ($item["size_raw"] > 1073741824) $item["size"] = round(($item["size_raw"]/1073741824 ), 2) . " GB";
				elseif($item["size_raw"]>1048576)$item["size"] = round(($item["size_raw"]/1048576), 2) . " MB";
				elseif($item["size_raw"]>1024)$item["size"] = round(($item["size_raw"]/1024), 2) . " KB";
				else $item["size"] = $item["size_raw"] . " Byte";
			}
		}
		if ($this->config['showpermissions'] > 0) {
			if ($this->config['showpermissions'] == 1)
				$item["fileperms"] = substr(decoct(fileperms($name)), -3);
			elseif ($this->config['showpermissions'] == 2)
				$item["fileperms"] = $this->filePermsDecode(fileperms($name));
			if ($item["fileperms"] == "")
				$item["fileperms"] = " ";
			$item["filepermmode"] = ($this->config['showpermissions'] == 1) ? "short" : "long";
		}
		if ($this->config['showowner'] == 1) {
			if (function_exists("posix_getpwuid") && fileowner($name) !== false) {
				$ownerarr = posix_getpwuid(fileowner($name));
				$item["owner"] = $ownerarr['name'];
			} else $item["owner"] = false;
		}
		if ($this->config['showgroup'] == 1) {
			if (function_exists("posix_getgrgid") && filegroup($name) !== false) {
				$grouparr = posix_getgrgid(filegroup($name));
				$item["group"] = $grouparr['name'];
			} else $item["group"] = false;
		}
		return $item;
	}

	private function getConfig() {
		$ret = $this->config;
		$ret['inline'] = ($this->mode == "inline") ? true : false;
		$ret['isDocroot'] = ($this->getRootDir() == $this->initialWD);

		foreach (["auth_source", "root_dir"] as $field)
			unset($ret[$field]);

		return $ret;
	}

	private function getFolders($d) {
		if (!isset($d['dir']))
			$d['dir'] = $this->getRootDir();

		if (!$this->isPathValid($d['dir']))
			return [];
		else {
			$ret = [];
			foreach (glob($this->pathCombine($d['dir'], "*"), GLOB_ONLYDIR) as $dir) {
				array_push($ret, [
					"text" => htmlspecialchars(basename($dir)),
					"lazyLoad" => true,
					"dataAttr" => ["path" => $dir]
				]);
			}
			sort($ret);
			if (realpath($d['dir']) == $this->initialWD)
				$ret = array_merge(
					[
						0 => [
							"text" => "/ [root]",
							"dataAttr" => ["path" => $this->getRootDir()]
						]
					],
					$ret
				);
			return $ret;
		}
	}

	private function searchItems($d) {
		if ($this->config['search'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (strpos($d['pattern'], '/') !== false)
			throw new IFMException($this->l('pattern_error_slashes'));

		$results = $this->searchItemsRecursive($d['pattern']);
		return $results;
	}

	private function searchItemsRecursive($pattern, $dir="") {
		$items = [];
		$dir = $dir ?? '.';

		foreach (glob($this->pathCombine($dir, $pattern)) as $result)
			array_push($items, $this->getItemInformation($result));

		foreach (glob($this->pathCombine($dir, '*'), GLOB_ONLYDIR) as $subdir)
			$items = array_merge($items, $this->searchItemsRecursive($pattern, $subdir));

		return $items;
	}

	private function getFolderTree($d) {
		return array_merge(
			[
				0 => [
					"text" => "/ [root]",
					"nodes" => [],
					"dataAttributes" => ["path" => $this->getRootDir()]
				]
			],
			$this->getFolderTreeRecursive($d['dir'])
		);
	}

	private function getFolderTreeRecursive($start_dir) {
		$ret = [];
		$start_dir = realpath($start_dir);
		if ($handle = opendir($start_dir)) {
			while (false !== ($result = readdir($handle))) {
				if (is_dir($this->pathCombine($start_dir, $result)) && $result != "." && $result != ".." ) {
					array_push($ret, [
						"text" => htmlspecialchars($result),
						"dataAttributes" => ["path" => $this->pathCombine($start_dir, $result)],
						"nodes" => $this->getFolderTreeRecursive($this->pathCombine($start_dir, $result))
					]);
				}
			}
		}
		sort($ret);
		return $ret;
	}

	private function copyMove($d) {
		if ($this->config['copymove'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!isset($d['destination']) || !$this->isPathValid(realpath($d['destination'])))
			throw new IFMException($this->l('invalid_dir'));

		if (!is_array($d['filenames']))
			throw new IFMException($this->l('invalid_params'));

		if (!in_array($d['action'], ['copy', 'move']))
			throw new IFMException($this->l('invalid_action'));

		$err = []; $errFlag = -1; // -1 -> all errors; 0 -> at least some errors; 1 -> no errors
		foreach ($d['filenames'] as $file) {
			if (!file_exists($file) || $file == ".." || !$this->isFilenameValid($file)) {
				array_push($err, $file);
			}
			if ($d['action'] == "copy") {
				if ($this->xcopy($file, $d['destination']))
					$errFlag = 0;
				else
					array_push($err, $file);
			} elseif ($d['action'] == "move") {
				if (rename($file, $this->pathCombine($d['destination'], basename($file))))
					$errFlag = 0;
				else
					array_push($err, $file);
			}
		}
		$action = ($d['action'] == "copy") ? "copied" : "moved";
		if (empty($err)) {
			return [
				"status" => "OK",
				"message" => ($d['action'] == "copy" ? $this->l('copy_success') : $this->l('move_success')),
				"errflag" => "1"
			];
		} else {
			$errmsg = ($d['action'] == "copy" ? $this->l('copy_error') : $this->l('move_error')) . "<ul>";
			foreach ($err as $item)
				$errmsg .= "<li>".$item."</li>";
			$errmsg .= "</ul>";
			throw new IFMException($errmsg);
		}
	}

	// creates a directory
	private function createDir($d) {
		if ($this->config['createdir'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if ($d['dirname'] == "" || !$this->isFilenameValid($d['dirname']))
			throw new IFMException($this->l('invalid_dir'));

		if (@mkdir($d['dirname']))
			return ["status" => "OK", "message" => $this->l('folder_create_success')];
		else
			throw new IFMException($this->l('folder_create_error').". ".error_get_last()['message']);
	}

	// save a file
	private function saveFile($d) {
		if (
			(file_exists($this->pathCombine($d['dir'], $d['filename'])) && $this->config['edit'] != 1 )
			|| (!file_exists($this->pathCombine($d['dir'], $d['filename'])) && $this->config['createfile'] != 1)
		)
			throw new IFMException($this->l('nopermissions'));

		if (isset($d['filename']) && $this->isFilenameValid($d['filename'])) {
			if (isset($d['content'])) {
				// work around magic quotes
				if((function_exists("get_magic_quotes_gpc") && get_magic_quotes_gpc())
					|| (ini_get('magic_quotes_sybase') && (strtolower(ini_get('magic_quotes_sybase'))!="off")) ) {
						$content = stripslashes($d['content']);
				} else {
						$content = $d['content'];
				}

				if (@file_put_contents($d['filename'], $content) !== false)
					return ["status" => "OK", "message" => $this->l('file_save_success')];
				else
					throw new Exception($this->l('file_save_error'));
			} else
				throw new IFMException($this->l('file_save_error'));
		} else
			throw new IFMException($this->l('invalid_filename'));
	}

	// gets the content of a file
	// notice: if the content is not JSON encodable it returns an error
	private function getContent($d) {
		if ($this->config['edit'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (isset($d['filename']) && $this->isFilenameAllowed($d['filename']) && file_exists($d['filename']) && is_readable($d['filename'])) {
			$content = @file_get_contents($d['filename']);
			if (function_exists("mb_check_encoding") && !mb_check_encoding($content, "UTF-8"))
				$content = utf8_encode($content);
			return ["status" => "OK", "data" => ["filename" => $d['filename'], "content" => $content]];
		} else
			throw new IFMException($this->l('file_not_found'));
	}

	// deletes a bunch of files or directories
	private function deleteFiles($d) {
		if ($this->config['delete'] != 1)
			throw new IFMException($this->l('nopermissions'));

		$err = []; $errFLAG = -1; // -1 -> no files deleted; 0 -> at least some files deleted; 1 -> all files deleted
		foreach ($d['filenames'] as $file) {
			if ($this->isFilenameAllowed($file)) {
				if (is_dir($file)) {
					$res = $this->rec_rmdir($file);
					if ($res != 0)
						array_push($err, $file);
					else
						$errFLAG = 0;
				} else {
					if (@unlink($file))
						$errFLAG = 0;
					else
						array_push($err, $file);
				}
			} else {
				array_push($err, $file);
			}
		}
		if (empty($err))
			return ["status" => "OK", "message" => $this->l('file_delete_success'), "errflag" => "1"];
		else {
			$errmsg = $this->l('file_delete_error') . "<ul>";
			foreach ($err as $item)
				$errmsg .= "<li>".$item."</li>";
			$errmsg .= "</ul>";
			throw new IFMException($errmsg);
		}
	}

	// renames a file
	private function renameFile(array $d) {
		if ($this->config['rename'] != 1)
			throw new IFMException($this->l('nopermissions'));
		elseif (!$this->isFilenameValid($d['filename']) || !$this->isFilenameValid($d['newname']))
			throw new IFMException($this->l('invalid_filename'));

		if (@rename($d['filename'], $d['newname']))
			return ["status" => "OK", "message" => $this->l('file_rename_success')];
		else
			throw new IFMException($this->l('file_rename_error'));
	}

	// provides a file for downloading
	private function downloadFile(array $d, $forceDL=true) {
		if ($this->config['download'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!$this->isFilenameValid($d['filename']))
			throw new IFMException($this->l('invalid_filename'));

		if (!is_file($d['filename']))
			http_response_code(404);
		else
			$this->fileDownload(["file" => $d['filename'], "forceDL" => $forceDL]);
	}

	// extracts a zip-archive
	private function extractFile(array $d) {
		$restoreIFM = false;
		$tmpSelfContent = null;
		$tmpSelfChecksum = null;
		if ($this->config['extract'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!file_exists($d['filename']))
			throw new IFMException($this->l('invalid_filename'));

		if (!isset($d['targetdir']) || trim($d['targetdir']) == "")
			$d['targetdir'] = "./";

		if (!$this->isPathValid($d['targetdir']))
			throw new IFMException($this->l('invalid_dir'));

		if (!is_dir($d['targetdir']) && !mkdir($d['targetdir'], 0777, true))
			throw new IFMException($this->l('folder_create_error'));

		if (realpath($d['targetdir']) == substr($this->initialWD, 0, strlen(realpath($d['targetdir'])))) {
			$tmpSelfContent = tmpfile();
			fwrite($tmpSelfContent, file_get_contents(__FILE__));
			$tmpSelfChecksum = hash_file("sha256", __FILE__);
			$restoreIFM = true;
		}

		if (strtolower(pathinfo($d['filename'], PATHINFO_EXTENSION) == "zip")) {
			if (!IFMArchive::extractZip($d['filename'], $d['targetdir']))
				throw new IFMException($this->l('extract_error'));
			else
				return ["status" => "OK","message" => $this->l('extract_success')];
		} elseif (
			(strtolower(pathinfo($d['filename'], PATHINFO_EXTENSION)) == "tar")
			|| (strtolower(pathinfo(pathinfo($d['filename'], PATHINFO_FILENAME), PATHINFO_EXTENSION)) == "tar")
		) {
			if (!IFMArchive::extractTar($d['filename'], $d['targetdir']))
				throw new IFMException($this->l('extract_error'));
			else
				return ["status" => "OK","message" => $this->l('extract_success')];
		} else {
			throw new IFMException($this->l('archive_invalid_format'));
		}

		if ($restoreIFM) {
			if ($tmpSelfChecksum != hash_file("sha256", __FILE__)) {
				rewind($tmpSelfContent);
				$fh = fopen(__FILE__, "w");
				while (!feof($tmpSelfContent))
					fwrite($fh, fread($tmpSelfContent, 8196));
				fclose($fh);
			}
			fclose($tmpSelfContent);
		}
	}

	// uploads a file
	private function uploadFile(array $d) {
		if($this->config['upload'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!isset($_FILES['file']))
			throw new IFMException($this->l('file_upload_error'));

		$newfilename = (isset($d["newfilename"]) && $d["newfilename"]!="") ? $d["newfilename"] : $_FILES['file']['name'];
		if (!$this->isFilenameValid($newfilename))
			throw new IFMException($this->l('invalid_filename'));

		if ($_FILES['file']['tmp_name']) {
			if (is_writable(getcwd())) {
				if (move_uploaded_file($_FILES['file']['tmp_name'], $newfilename))
					return ["status" => "OK", "message" => $this->l('file_upload_success'), "cd" => $d['dir']];
				else
					throw new IFMException($this->l('file_upload_error'));
			} else
				throw new IFMException($this->l('file_upload_error'));
		} else
			throw new IFMException($this->l('file_not_found'));
	}

	// change permissions of a file
	private function changePermissions(array $d) {
		if ($this->config['chmod'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!isset($d["chmod"]) || $d['chmod'] == "" )
			throw new IFMException($this->l('permission_parse_error'));

		if (!$this->isPathValid($this->pathCombine($d['dir'], $d['filename'])))
			throw new IFMException($this->l('nopermissions'));

		$chmod = $d["chmod"]; $cmi = true;
		if (!is_numeric($chmod)) {
			$cmi = false;
			$chmod = str_replace(" ", "", $chmod);

			if (strlen($chmod) == 9) {
				$cmi = true;
				$arr = [substr($chmod, 0, 3), substr($chmod, 3, 3), substr($chmod, 6, 3)];
				$chtmp = "0";
				foreach ($arr as $right) {
					$rtmp = 0;
					if (substr($right, 0, 1) == "r") $rtmp = $rtmp + 4; elseif (substr($right, 0, 1) <> "-") $cmi = false;
					if (substr($right, 1, 1) == "w") $rtmp = $rtmp + 2; elseif (substr($right, 1, 1) <> "-") $cmi = false;
					if (substr($right, 2, 1) == "x") $rtmp = $rtmp + 1; elseif (substr($right, 2, 1) <> "-") $cmi = false;
					$chtmp = $chtmp . $rtmp;
				}
				$chmod = intval($chtmp);
			}
		} else
			$chmod = "0" . $chmod;

		if ($cmi) {
			try {
				chmod($d["filename"], (int)octdec($chmod));
				return ["status" => "OK", "message" => $this->l('permission_change_success')];
			} catch (Exception $e) {
				throw new IFMException($this->l('permission_change_error'));
			}
		} else
			throw new IFMException($this->l('permission_parse_error'));
	}

	// zips a directory and provides it for downloading
	// it creates a temporary zip file in the current directory, so it has to be as much space free as the file size is
	private function zipnload(array $d) {
		if ($this->config['zipnload'] != 1)
			throw new IFMException($this->l('nopermission'));

		if (!file_exists($d['filename']))
			throw new IFMException($this->l('folder_not_found'));

		if (!$this->isPathValid($d['filename']))
			throw new IFMException($this->l('invalid_dir'));

		if ($d['filename'] != "." && !$this->isFilenameValid($d['filename']))
			throw new IFMException($this->l('invalid_filename'));

		unset($zip);
		if ($this->isAbsolutePath($this->config['tmp_dir']))
			$dfile = $this->pathCombine($this->config['tmp_dir'], uniqid("ifm-tmp-") . ".zip"); // temporary filename
		else
			$dfile = $this->pathCombine($this->initialWD, $this->config['tmp_dir'], uniqid("ifm-tmp-") . ".zip"); // temporary filename

		try {
			IFMArchive::createZip(realpath($d['filename']), $dfile, [$this, 'isFilenameValid']);
			if ($d['filename'] == ".") {
				if (getcwd() == $this->getRootDir())
					$d['filename'] = "root";
				else
					$d['filename'] = basename(getcwd());
			}
			$this->fileDownload(["file" => $dfile, "name" => $d['filename'] . ".zip", "forceDL" => true]);
		} catch (Exception $e) {
			throw new IFMException($this->l('error') . " " . $e->getMessage());
		} finally {
			if (file_exists($dfile))
				@unlink($dfile);
		}
	}

	// uploads a file from an other server using the curl extention
	private function remoteUpload(array $d) {
		if ($this->config['remoteupload'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!isset($d['method']) || !in_array($d['method'], ["curl", "file"]))
			throw new IFMException($this->l('invalid_params'));

		if ($d['method'] == "curl" && $this->checkCurl() == false)
			throw new IFMException($this->l('error')." cURL extention not installed.");

		if ($d['method'] == "curl" && $this->checkCurl() == true) {
			$filename = (isset($d['filename']) && $d['filename'] != "") ? $d['filename'] : "curl_".uniqid();
			$ch = curl_init();
			if ($ch) {
				if ($this->isFilenameValid($filename) == false)
					throw new IFMException($this->l('invalid_filename'));
				elseif (filter_var($d['url'], FILTER_VALIDATE_URL) === false)
					throw new IFMException($this->l('invalid_url'));
				else {
					$fp = fopen($filename, "w");
					if ($fp) {
						if (
							!curl_setopt($ch, CURLOPT_URL, urldecode($d['url']))
							|| !curl_setopt($ch, CURLOPT_FILE, $fp)
							|| !curl_setopt($ch, CURLOPT_HEADER, 0)
							|| !curl_exec($ch)
						)
							throw new IFMException($this->l('error')." ".curl_error($ch));
						else
							return ["status" => "OK", "message" => $this->l('file_upload_success')];
						curl_close($ch);
						fclose($fp);
					} else
						throw new IFMException($this->l('file_open_error'));
				}
			} else
				throw new IFMException($this->l('error')." curl init");
		} elseif ($d['method'] == 'file') {
			$filename = (isset($d['filename']) && $d['filename'] != "") ? $d['filename'] : "curl_".uniqid();
			if ($this->isFilenameValid($filename) == false)
				throw new IFMException($this->l('invalid_filename'));
			else {
				try {
					file_put_contents($filename, file_get_contents($d['url']));
					return ["status" => "OK", "message" => $this->l('file_upload_success')];
				} catch (Exception $e) {
					throw new IFMException($this->l('error') . " " . $e->getMessage());
				}
			}
		} else
			throw new IFMException($this->l('invalid_params'));
	}

	private function createArchive($d) {
		if ($this->config['createarchive'] != 1)
			throw new IFMException($this->l('nopermissions'));

		if (!$this->isFilenameValid($d['archivename']))
			throw new IFMException($this->l('invalid_filename'));

		$filenames = [];
		foreach ($d['filenames'] as $file)
			if (!$this->isFilenameValid($file))
				throw new IFMException($this->l('invalid_filename'));
			else
				array_push($filenames, realpath($file));

		switch ($d['format']) {
			case "zip":
				if (IFMArchive::createZip($filenames, $d['archivename']))
					return ["status" => "OK", "message" => $this->l('archive_create_success')];
				else
					throw new IFMException($this->l('archive_create_error'));
				break;
			case "tar":
				$d['archivename'] = pathinfo($d['archivename'], PATHINFO_FILENAME);
				if (IFMArchive::createTar($filenames, $d['archivename'], $d['format']))
					return ["status" => "OK", "message" => $this->l('archive_create_success')];
				else
					throw new IFMException($this->l('archive_create_error'));
				break;
			case "tar.gz":
			case "tar.bz2":
				$d['archivename'] = pathinfo(pathinfo($d['archivename'], PATHINFO_FILENAME), PATHINFO_FILENAME);
				if (IFMArchive::createTar($filenames, $d['archivename'], $d['format']))
					return ["status" => "OK", "message" => $this->l('archive_create_success')];
				else
					throw new IFMException($this->l('archive_create_error'));
				break;
			default:
				throw new IFMException($this->l('archive_invalid_format'));
				break;
		}
	}

	/*
	   help functions
	 */

	private function l($str) {
		if (isset($_REQUEST['lang'])
			&& in_array($_REQUEST['lang'], array_keys($this->i18n))
			&& isset($this->i18n[$_REQUEST['lang']][$str]))
			return $this->i18n[$_REQUEST['lang']][$str];
		else
			return $this->i18n['en'][$str];
	}

	private function log($d) {
		file_put_contents($this->pathCombine($this->getRootDir(), "debug.ifm.log"), (is_array($d) ? print_r($d, true)."\n" : $d."\n"), FILE_APPEND);
	}

	private function jsonResponse($array) {
		$this->convertToUTF8($array);
		$json = json_encode($array);
		if ($json === false) {
			switch (json_last_error()) {
				case JSON_ERROR_NONE:
					echo ' - No errors';
					break;
				case JSON_ERROR_DEPTH:
					echo ' - Maximum stack depth exceeded';
					break;
				case JSON_ERROR_STATE_MISMATCH:
					echo ' - Underflow or the modes mismatch';
					break;
				case JSON_ERROR_CTRL_CHAR:
					echo ' - Unexpected control character found';
					break;
				case JSON_ERROR_SYNTAX:
					echo ' - Syntax error, malformed JSON';
					break;
				case JSON_ERROR_UTF8:
					echo ' - Malformed UTF-8 characters, possibly incorrectly encoded';
					break;
				default:
					echo ' - Unknown error';
					break;
			}

			throw new IFMException($this->l('json_encode_error')." ".$err);
		} else
			echo $json;
	}

	private function convertToUTF8(&$item) {
		if (is_array($item))
			array_walk($item, [$this, 'convertToUTF8']);
		else
			if (function_exists("mb_check_encoding") && !mb_check_encoding($item, "UTF-8"))
				$item = utf8_encode($item);
	}

	private function checkAuth() {
		if ($this->config['auth'] == 0)
			return true;

		$credentials_header = $_SERVER['HTTP_X_IFM_AUTH'] ?? $_SERVER['HTTP_AUTHORIZATION'] ?? false;
		if ($credentials_header && !$this->config['auth_ignore_basic']) {
			$cred = explode(":", base64_decode(str_replace("Basic ", "", $credentials_header)), 2);
			if (count($cred) == 2 && $this->checkCredentials($cred[0], $cred[1]))
				return true;
		}

		if (session_status() !== PHP_SESSION_ACTIVE) {
			session_start();
		}

		if (isset($_SESSION['ifmauth']) && $_SESSION['ifmauth'] == true)
			return true;

		$login_failed = false;
		if (isset($_POST["inputLogin"]) && isset($_POST["inputPassword"])) {
			if ($this->checkCredentials($_POST["inputLogin"], $_POST["inputPassword"])) {
				$_SESSION['ifmauth'] = true;
			} else {
				$_SESSION['ifmauth'] = false;
				$login_failed = true;
			}
		}

		if (isset($_SESSION['ifmauth']) && $_SESSION['ifmauth'] === true)
			return true;
		else {
			if ($login_failed === true)
				throw new IFMException("Authentication failed: Wrong credentials", true);
			else
				throw new IFMException("Not authenticated" , true);
		}
	}

	private function checkCredentials($user, $pass) {
		list($src, $srcopt) = explode(";", $this->config['auth_source'], 2);
		switch ($src) {
			case "inline":
				list($uname, $hash) = explode(":", $srcopt);
				$htpasswd = new Htpasswd();
				return $htpasswd->verifyPassword($pass, $hash) ? ($uname == $user) : false;
				break;
			case "file":
				if (@file_exists($srcopt) && @is_readable($srcopt)) {
					$htpasswd = new Htpasswd($srcopt);
					return $htpasswd->verify($user, $pass);
				} else {
					trigger_error("IFM: Fatal: Credential file does not exist or is not readable");
					return false;
				}
				break;
			case "ldap":
				$authenticated = false;
				$ldapopts = explode(";", $srcopt);
				if (count($ldapopts) === 4) {
					list($ldap_server, $basedn, $uuid, $ufilter) = explode(";", $srcopt);
				} else {
					list($ldap_server, $basedn) = explode(";", $srcopt);
					$ufilter = false;
					$uuid = "uid";
				}
				$u = $uuid . "=" . $user . "," . $basedn;
				if (!$ds = ldap_connect($ldap_server)) {
					throw new IFMException("Could not reach the ldap server." , true);
					//trigger_error("Could not reach the ldap server.", E_USER_ERROR);
					return false;
				}
				ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
				if ($ds) {
					$ldbind = @ldap_bind($ds, $u, $pass);
					if ($ldbind) {
						if ($ufilter) {
							if (ldap_count_entries($ds, ldap_search($ds, $u, $ufilter)) == 1) {
								$authenticated = true;
							} else {
								throw new IFMException("User not allowed." , true);
								//trigger_error("User not allowed.", E_USER_ERROR);
								$authenticated = false;
							}
						} else
							$authenticated = true;
					} else {
						throw new IFMException(ldap_error($ds) , true);
						//trigger_error(ldap_error($ds), E_USER_ERROR);
						$authenticated = false;
					}
					ldap_unbind($ds);
				} else
					$authenticated = false;
				return $authenticated;
				break;
		}
		return false;
	}

	private function filePermsDecode($perms) {
		$oct = str_split(strrev(decoct($perms)), 1);
		$masks = ['---', '--x', '-w-', '-wx', 'r--', 'r-x', 'rw-', 'rwx'];
		return(
			sprintf(
				'%s %s %s',
				array_key_exists($oct[2], $masks) ? $masks[$oct[2]] : '###',
				array_key_exists($oct[1], $masks) ? $masks[$oct[1]] : '###',
				array_key_exists($oct[0], $masks) ? $masks[$oct[0]] : '###')
		);
	}

	private function isAbsolutePath($path) {
		if ($path === null || $path === '')
			return false;
		return $path[0] === DIRECTORY_SEPARATOR || preg_match('~^[A-Z]:(?![^/\\\\])~i',$path) > 0;
	}

	private function getRootDir() {
		if ($this->config['root_dir'] == "")
			return $this->initialWD;
		elseif ($this->isAbsolutePath($this->config['root_dir']))
			return realpath($this->config['root_dir']);
		else
			return realpath($this->pathCombine($this->initialWD, $this->config['root_dir']));
	}

	private function getValidDir($dir) {
		if (!$this->isPathValid($dir) || !is_dir($dir))
			return "";
		else {
			$rpDir = realpath($dir);
			$rpConfig = $this->getRootDir();
			if ($rpConfig == "/")
				return $rpDir;
			elseif ($rpDir == $rpConfig)
				return "";
			else {
				$part = substr($rpDir, strlen($rpConfig));
				$part = (in_array(substr($part, 0, 1), ["/", "\\"])) ? substr($part, 1) : $part;
				return $part;
			}
		}
	}


	private function isPathValid($dir) {
		/**
		 * This function is also used to check non-existent paths, but the PHP realpath function returns false for
		 * nonexistent paths. Hence we need to check the path manually in the following lines.
		 */
		$tmp_d = $dir;
		$tmp_missing_parts = [];
		while (realpath($tmp_d) === false) {
			$tmp_i = pathinfo($tmp_d, PATHINFO_FILENAME);
			array_push($tmp_missing_parts, $tmp_i);
			$tmp_d = dirname($tmp_d);
			if ($tmp_d == dirname($tmp_d))
				break;
		}
		$rpDir = $this->pathCombine(realpath($tmp_d), implode("/", array_reverse($tmp_missing_parts)));
		$rpConfig = $this->getRootDir();
		if (!is_string($rpDir) || !is_string($rpConfig)) // can happen if open_basedir is in effect
			return false;
		elseif ($rpDir == $rpConfig)
			return true;
		elseif (!file_exists($rpDir))
			return false;
		elseif (0 === strpos($rpDir, $rpConfig))
			return true;
		else
			return false;
	}

	private function chDirIfNecessary($d) {
		if (substr(getcwd(), strlen($this->getRootDir())) != $this->getValidDir($d) && !empty($d))
			chdir($d);
	}

	private function getTypeIcon($type) {
		$type = strtolower($type);
		switch ($type) {
			case "aac": case "aiff": case "mid": case "mp3": case "wav": return 'icon icon-file-audio'; break;
			case "ai": case "bmp": case "eps": case "tiff": case "gif": case "jpg": case "jpeg": case "png": case "psd": case "svg": case "webp": return 'icon icon-file-image'; break;
			case "avi": case "flv": case "mp4": case "mpg": case "mkv": case "mpeg": case "webm": case "wmv": case "mov": return 'icon icon-file-video'; break;
			case "c": case "cpp": case "css": case "dat": case "h": case "html": case "java": case "js": case "php": case "py": case "sql": case "xml": case "yml": case "json": return 'icon icon-file-code'; break;
			case "doc": case "docx": case "odf": case "odt": case "rtf": return 'icon icon-file-word'; break;
			case "txt": case "log": return 'icon icon-doc-text'; break;
			case "ods": case "xls": case "xlsx": return 'icon icon-file-excel'; break;
			case "odp": case "ppt": case "pptx": return 'icon icon-file-powerpoint'; break;
			case "pdf": return 'icon icon-file-pdf'; break;
			case "tgz": case "zip": case "tar": case "tgz": case "tar.gz": case "tar.xz": case "tar.bz2": case "7z": case "rar": return 'icon icon-file-archive';
			default: return 'icon icon-doc';
		}
	}

	private function rec_rmdir($path) {
		if (!is_dir($path))
			return -1;

		$dir = @opendir($path);
		if (!$dir)
			return -2;
		while (($entry = @readdir($dir)) !== false) {
			if ($entry == '.' || $entry == '..') continue;
			if (is_dir($path . '/' . $entry)) {
				$res = $this->rec_rmdir($path.'/'.$entry);
				if ($res == -1) {
					@closedir($dir);
					return -2;
				} else if ($res == -2) {
					@closedir($dir);
					return -2;
				} else if ($res == -3) {
					@closedir($dir);
					return -3;
				} else if ($res != 0) {
					@closedir($dir);
					return -2;
				}
			} else if (is_file($path.'/'.$entry) || is_link($path.'/'.$entry)) {
				$res = @unlink($path.'/'.$entry);
				if (!$res) {
					@closedir($dir);
					return -2;
				}
			} else {
				@closedir($dir);
				return -3;
			}
		}
		@closedir($dir);
		$res = @rmdir($path);
		if (!$res)
			return -2;
		return 0;
	}

	private function xcopy($source, $dest) {
		$isDir = is_dir($source);
		if ($isDir)
			$dest = $this->pathCombine($dest, basename($source));
		if (!is_dir($dest))
			mkdir($dest, 0777, true);
		if (is_file($source))
			return copy($source, $this->pathCombine($dest, basename($source)));

		chdir($source);
		foreach (glob('*') as $item)
			$this->xcopy($item, $dest);
		chdir('..');
		return true;
	}

	// combines two parts to a valid path
	private function pathCombine(...$parts) {
		$ret = "";
		foreach ($parts as $part)
			if (trim($part) != "")
				$ret .= (empty($ret) ? rtrim($part,"/") : trim($part, '/'))."/";
		return rtrim($ret, "/");
	}

	// check if filename is allowed
	public function isFilenameValid($f) {
		if (!$this->isFilenameAllowed($f))
			return false;

		if (strtoupper(substr(PHP_OS, 0, 3)) == "WIN") {
			// windows-specific limitations
			foreach (['\\', '/', ':', '*', '?', '"', '<', '>', '|'] as $char)
				if (strpos($f, $char) !== false)
					return false;
		} else {
			// *nix-specific limitations
			foreach (['/', '\0'] as $char)
				if (strpos($f, $char) !== false)
					return false;
		}

		// custom limitations
		foreach ($this->config['forbiddenChars'] as $char)
			if (strpos($f, $char) !== false)
				return false;
		return true;
	}

	private function isFilenameAllowed($f) {
		if ($this->config['showhtdocs'] != 1 && substr($f, 0, 3) == ".ht")
			return false;
		elseif ($this->config['showhiddenfiles'] != 1 && substr($f, 0, 1) == ".")
			return false;
		elseif ($this->config['selfoverwrite'] != 1 && getcwd() == $this->initialWD && $f == basename(__FILE__))
			return false;
		else
			return true;
	}

	// is cURL extention avaliable?
	private function checkCurl() {
		if (!function_exists("curl_init")
			|| !function_exists("curl_setopt")
			|| !function_exists("curl_exec")
			|| !function_exists("curl_close")
		)
			return false;
		else
			return true;
	}

	private function fileDownload(array $options) {
		if (!isset($options['name']) || trim($options['name']) == "")
			$options['name'] = basename($options['file']);

		if (isset($options['forceDL']) && $options['forceDL']) {
			$content_type = "application/octet-stream";
			header('Content-Disposition: attachment; filename="'.$options['name'].'"');
		} else
			$content_type = mime_content_type($options['file']);

		header('Content-Type: '.$content_type);
		header('Expires: 0');
		header('Cache-Control: must-revalidate');
		header('Pragma: public');
		header('Content-Length: '.filesize($options['file']));

		$file_stream = fopen($options['file'], 'rb');
		$stdout_stream = fopen('php://output', 'wb');

		stream_copy_to_stream($file_stream, $stdout_stream);

		fclose($file_stream);
		fclose($stdout_stream);
	}
}

/**
 * =======================================================================
 * Improved File Manager
 * ---------------------
 * License: This project is provided under the terms of the MIT LICENSE
 * http://github.com/misterunknown/ifm/blob/master/LICENSE
 * =======================================================================
 * 
 * archive class
 *
 * This class provides support for various archive types for the IFM. It can
 * create and extract the following formats:
 * 	* zip
 * 	* tar
 * 	* tar.gz
 * 	* tar.bz2
*/

class IFMArchive {

	/**
	 * Add a folder to an archive
	 */
	private static function addFolder(&$archive, $folder, $offset=0, $exclude_callback=null) {
		if ($offset == 0)
			$offset = strlen(dirname($folder)) + 1;
		$archive->addEmptyDir(substr($folder, $offset));
		$handle = opendir($folder);
		while (false !== $f = readdir($handle)) {
			if ($f != '.' && $f != '..') {
				$filePath = $folder . '/' . $f;
				if (file_exists($filePath) && is_readable($filePath)) {
					if (is_file($filePath)) {
						if (!is_callable($exclude_callback) || $exclude_callback($f))
							$archive->addFile( $filePath, substr( $filePath, $offset ) );
					} elseif (is_dir($filePath)) {
						if (is_callable($exclude_callback))
							self::addFolder($archive, $filePath, $offset, $exclude_callback);
						else
							self::addFolder($archive, $filePath, $offset);
					}
				}
			}
		}
		closedir($handle);
	}

	/**
	 * Create a zip file
	 */
	public static function createZip($filenames, $archivename, $exclude_callback=null) {
		$a = new ZipArchive();
		$a->open($archivename, ZIPARCHIVE::CREATE);

		if (!is_array($filenames))
			$filenames = array($filenames);

		foreach ($filenames as $f)
			if (is_dir($f))
				if (is_callable($exclude_callback))
					self::addFolder( $a, $f, null, $exclude_callback );
				else
					self::addFolder( $a, $f );
			elseif (is_file($f))
				if (!is_callable($exclude_callback) || $exclude_callback($f))
					$a->addFile($f, pathinfo($f, PATHINFO_BASENAME));

		try {
			return $a->close();
		} catch (Exception $e) {
			return false;
		}
	}

	/**
	 * Unzip a zip file
	 */
	public static function extractZip($file, $destination="./") {
		if (!file_exists($file))
			return false;
		$zip = new ZipArchive;
		$res = $zip->open($file);
		if ($res === true) {
			$zip->extractTo($destination);
			$zip->close();
			return true;
		} else
			return false;
	}

	/**
	 * Creates a tar archive
	 */
	public static function createTar($filenames, $archivename, $format) {
		$tmpf = $archivename . ".tar";
		$a = new PharData($tmpf);

		try {
			if (!is_array($filenames))
				$filenames = array($filenames);

			foreach ($filenames as $f)
				if (is_dir($f))
					self::addFolder($a, $f);
				elseif (is_file($f))
					$a->addFile($f, pathinfo($f, PATHINFO_BASENAME));
			switch ($format) {
				case "tar.gz":
					$a->compress(Phar::GZ);
					@unlink($tmpf);
					break;
				case "tar.bz2":
					$a->compress(Phar::BZ2);
					@unlink($tmpf);
					break;
			}
			return true;
		} catch (Exception $e) {
			@unlink($tmpf);
			return false;
		}
	}

	/**
	 * Extracts a tar archive
	 */
	public static function extractTar($file, $destination="./") {
		if (!file_exists($file))
			return false;
		$tar = new PharData($file);
		try {
			$tar->extractTo($destination, null, true);
			return true;
		} catch (Exception $e) {
			return false;
		}
	}
}
/**
 * htpasswd parser
 */

class Htpasswd {
	public $users = [];

	public function __construct( $filename="" ) {
		if( $filename )
			$this->load( $filename );
	}

	/**
	 * Load a new htpasswd file
	 */
	public function load( $filename ) {
		unset( $this->users );
		if( file_exists( $filename ) && is_readable( $filename ) ) {
			$lines = file( $filename );
			foreach( $lines as $line ) {
				list( $user, $pass ) = explode( ":", $line );
				$this->users[$user] = trim( $pass );
			}
			return true;
		} else
			return false;
	}

	public function getUsers() {
		return array_keys( $this->users );
	}

	public function userExist( $user ) {
		return isset( $this->users[ $user ] );
	}

	public function verify( $user, $pass ) {
		if( isset( $this->users[$user] ) ) {
			return $this->verifyPassword( $pass, $this->users[$user] );
		} else {
			return false;
		}
	}

	public function verifyPassword( $pass, $hash ) {
		if( substr( $hash, 0, 4 ) == '$2y$' ) {
			return password_verify( $pass, $hash );
		} elseif( substr( $hash, 0, 6 ) == '$apr1$' ) {
			$apr1 = new APR1_MD5();
			return $apr1->check( $pass, $hash );
		} elseif( substr( $hash, 0, 5 ) == '{SHA}' ) {
			return base64_encode( sha1( $pass, TRUE ) ) == substr( $hash, 5 );
		} else { // assume CRYPT
			return crypt( $pass, $hash ) == $hash;
		}
	}
}

/**
 * APR1_MD5 class
 *
 * Source: https://github.com/whitehat101/apr1-md5/blob/master/src/APR1_MD5.php
 */
class APR1_MD5 {

    const BASE64_ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
    const APRMD5_ALPHABET = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';

    // Source/References for core algorithm:
    // http://www.cryptologie.net/article/126/bruteforce-apr1-hashes/
    // http://svn.apache.org/viewvc/apr/apr-util/branches/1.3.x/crypto/apr_md5.c?view=co
    // http://www.php.net/manual/en/function.crypt.php#73619
    // http://httpd.apache.org/docs/2.2/misc/password_encryptions.html
    // Wikipedia

    public static function hash($mdp, $salt = null) {
        if (is_null($salt))
            $salt = self::salt();
        $salt = substr($salt, 0, 8);
        $max = strlen($mdp);
        $context = $mdp.'$apr1$'.$salt;
        $binary = pack('H32', md5($mdp.$salt.$mdp));
        for($i=$max; $i>0; $i-=16)
            $context .= substr($binary, 0, min(16, $i));
        for($i=$max; $i>0; $i>>=1)
            $context .= ($i & 1) ? chr(0) : $mdp[0];
        $binary = pack('H32', md5($context));
        for($i=0; $i<1000; $i++) {
            $new = ($i & 1) ? $mdp : $binary;
            if($i % 3) $new .= $salt;
            if($i % 7) $new .= $mdp;
            $new .= ($i & 1) ? $binary : $mdp;
            $binary = pack('H32', md5($new));
        }
        $hash = '';
        for ($i = 0; $i < 5; $i++) {
            $k = $i+6;
            $j = $i+12;
            if($j == 16) $j = 5;
            $hash = $binary[$i].$binary[$k].$binary[$j].$hash;
        }
        $hash = chr(0).chr(0).$binary[11].$hash;
        $hash = strtr(
            strrev(substr(base64_encode($hash), 2)),
            self::BASE64_ALPHABET,
            self::APRMD5_ALPHABET
        );
        return '$apr1$'.$salt.'$'.$hash;
    }

    // 8 character salts are the best. Don't encourage anything but the best.
    public static function salt() {
        $alphabet = self::APRMD5_ALPHABET;
        $salt = '';
        for($i=0; $i<8; $i++) {
            $offset = hexdec(bin2hex(openssl_random_pseudo_bytes(1))) % 64;
            $salt .= $alphabet[$offset];
        }
        return $salt;
    }

    public static function check($plain, $hash) {
        $parts = explode('$', $hash);
        return self::hash($plain, $parts[2]) === $hash;
    }
}

/**
 * start IFM
 */
$ifm = new IFM();
$ifm->run();