'$2y$12$6iyKwObB3zokmhwUuBhXxuB3/ZenHS4aosToHJJK0Yl3JgY1S80sy', 
);

// Readonly users
// e.g. array('users', 'guest', ...)
$readonly_users = array(
    'user'
);

// Global readonly, including when auth is not being used
$global_readonly = false;

// user specific directories
// array('Username' => 'Directory path', 'Username2' => 'Directory path', ...)
$directories_users = array();

// Enable highlight.js (https://highlightjs.org/) on view's page
$use_highlightjs = true;

// highlight.js style
// for dark theme use 'ir-black'
$highlightjs_style = 'vs';

// Enable ace.js (https://ace.c9.io/) on view's page
$edit_files = true;

// Default timezone for date() and time()
// Doc - http://php.net/manual/en/timezones.php
$default_timezone = 'Etc/UTC'; // UTC

// Root path for file manager
// use absolute path of directory i.e: '/var/www/folder' or $_SERVER['DOCUMENT_ROOT'].'/folder'
$root_path = $_SERVER['DOCUMENT_ROOT'];

// Root url for links in file manager.Relative to $http_host. Variants: '', 'path/to/subfolder'
// Will not working if $root_path will be outside of server document root
$root_url = '';

// Server hostname. Can set manually if wrong
// $_SERVER['HTTP_HOST'].'/folder'
$http_host = $_SERVER['HTTP_HOST'];

// input encoding for iconv
$iconv_input_encoding = 'UTF-8';

// date() format for file modification date
// Doc - https://www.php.net/manual/en/function.date.php
$datetime_format = 'm/d/Y g:i A';

// Path display mode when viewing file information
// 'full' => show full path
// 'relative' => show path relative to root_path
// 'host' => show path on the host
$path_display_mode = 'full';

// Allowed file extensions for create and rename files
// e.g. 'txt,html,css,js'
$allowed_file_extensions = '';

// Allowed file extensions for upload files
// e.g. 'gif,png,jpg,html,txt'
$allowed_upload_extensions = '';

// Favicon path. This can be either a full url to an .PNG image, or a path based on the document root.
// full path, e.g http://example.com/favicon.png
// local path, e.g images/icons/favicon.png
$favicon_path = '';

// Files and folders to excluded from listing
// e.g. array('myfile.html', 'personal-folder', '*.php', ...)
$exclude_items = array();

// Online office Docs Viewer
// Availabe rules are 'google', 'microsoft' or false
// Google => View documents using Google Docs Viewer
// Microsoft => View documents using Microsoft Web Apps Viewer
// false => disable online doc viewer
$online_viewer = 'google';

// Sticky Nav bar
// true => enable sticky header
// false => disable sticky header
$sticky_navbar = true;

// Maximum file upload size
// Increase the following values in php.ini to work properly
// memory_limit, upload_max_filesize, post_max_size
$max_upload_size_bytes = 5000000000; // size 5,000,000,000 bytes (~5GB)

// chunk size used for upload
// eg. decrease to 1MB if nginx reports problem 413 entity too large
$upload_chunk_size_bytes = 2000000; // chunk size 2,000,000 bytes (~2MB)

// Possible rules are 'OFF', 'AND' or 'OR'
// OFF => Don't check connection IP, defaults to OFF
// AND => Connection must be on the whitelist, and not on the blacklist
// OR => Connection must be on the whitelist, or not on the blacklist
$ip_ruleset = 'OFF';

// Should users be notified of their block?
$ip_silent = true;

// IP-addresses, both ipv4 and ipv6
$ip_whitelist = array(
    '127.0.0.1',    // local ipv4
    '::1'           // local ipv6
);

// IP-addresses, both ipv4 and ipv6
$ip_blacklist = array(
    '0.0.0.0',      // non-routable meta ipv4
    '::'            // non-routable meta ipv6
);

// if User has the external config file, try to use it to override the default config above [config.php]
// sample config - https://tinyfilemanager.github.io/config-sample.txt
$config_file = __DIR__.'/config.php';
if (is_readable($config_file)) {
    @include($config_file);
}

// External CDN resources that can be used in the HTML (replace for GDPR compliance)
$external = array(
    'css-bootstrap' => '',
    'css-dropzone' => '',
    'css-font-awesome' => '',
    'css-highlightjs' => '',
    'js-ace' => '',
    'js-bootstrap' => '',
    'js-dropzone' => '',
    'js-jquery' => '',
    'js-jquery-datatables' => '',
    'js-highlightjs' => '',
    'pre-jsdelivr' => '',
    'pre-cloudflare' => ''
);

// --- EDIT BELOW CAREFULLY OR DO NOT EDIT AT ALL ---

// max upload file size
define('MAX_UPLOAD_SIZE', $max_upload_size_bytes);

// upload chunk size
define('UPLOAD_CHUNK_SIZE', $upload_chunk_size_bytes);

// private key and session name to store to the session
if ( !defined( 'FM_SESSION_ID')) {
    define('FM_SESSION_ID', 'filemanager');
}

// Configuration
$cfg = new FM_Config();

// Default language
$lang = isset($cfg->data['lang']) ? $cfg->data['lang'] : 'en';

// Show or hide files and folders that starts with a dot
$show_hidden_files = isset($cfg->data['show_hidden']) ? $cfg->data['show_hidden'] : true;

// PHP error reporting - false = Turns off Errors, true = Turns on Errors
$report_errors = isset($cfg->data['error_reporting']) ? $cfg->data['error_reporting'] : true;

// Hide Permissions and Owner cols in file-listing
$hide_Cols = isset($cfg->data['hide_Cols']) ? $cfg->data['hide_Cols'] : true;

// Theme
$theme = isset($cfg->data['theme']) ? $cfg->data['theme'] : 'light';

define('FM_THEME', $theme);

//available languages
$lang_list = array(
    'en' => 'English'
);

if ($report_errors == true) {
    @ini_set('error_reporting', E_ALL);
    @ini_set('display_errors', 1);
} else {
    @ini_set('error_reporting', E_ALL);
    @ini_set('display_errors', 0);
}

// if fm included
if (defined('FM_EMBED')) {
    $use_auth = false;
    $sticky_navbar = false;
} else {
    @set_time_limit(600);

    date_default_timezone_set($default_timezone);

    ini_set('default_charset', 'UTF-8');
    if (version_compare(PHP_VERSION, '5.6.0', '<') && function_exists('mb_internal_encoding')) {
        mb_internal_encoding('UTF-8');
    }
    if (function_exists('mb_regex_encoding')) {
        mb_regex_encoding('UTF-8');
    }

    session_cache_limiter('nocache'); // Prevent logout issue after page was cached
    session_name(FM_SESSION_ID );
    function session_error_handling_function($code, $msg, $file, $line) {
        // Permission denied for default session, try to create a new one
        if ($code == 2) {
            session_abort();
            session_id(session_create_id());
            @session_start();
        }
    }
    set_error_handler('session_error_handling_function');
    session_start();
    restore_error_handler();
}

//Generating CSRF Token
if (empty($_SESSION['token'])) {
    if (function_exists('random_bytes')) {
        $_SESSION['token'] = bin2hex(random_bytes(32));
    } else {
        $_SESSION['token'] = bin2hex(openssl_random_pseudo_bytes(32));
    }
}

if (empty($auth_users)) {
    $use_auth = false;
}

$is_https = isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1)
    || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https';

// update $root_url based on user specific directories
if (isset($_SESSION[FM_SESSION_ID]['logged']) && !empty($directories_users[$_SESSION[FM_SESSION_ID]['logged']])) {
    $wd = fm_clean_path(dirname($_SERVER['PHP_SELF']));
    $root_url =  $root_url.$wd.DIRECTORY_SEPARATOR.$directories_users[$_SESSION[FM_SESSION_ID]['logged']];
}
// clean $root_url
$root_url = fm_clean_path($root_url);

// abs path for site
defined('FM_ROOT_URL') || define('FM_ROOT_URL', ($is_https ? 'https' : 'http') . '://' . $http_host . (!empty($root_url) ? '/' . $root_url : ''));
defined('FM_SELF_URL') || define('FM_SELF_URL', ($is_https ? 'https' : 'http') . '://' . $http_host . $_SERVER['PHP_SELF']);

// logout
if (isset($_GET['logout'])) {
    unset($_SESSION[FM_SESSION_ID]['logged']);
    unset( $_SESSION['token']); 
    fm_redirect(FM_SELF_URL);
}

// Validate connection IP
if ($ip_ruleset != 'OFF') {
    function getClientIP() {
        if (array_key_exists('HTTP_CF_CONNECTING_IP', $_SERVER)) {
            return  $_SERVER["HTTP_CF_CONNECTING_IP"];
        }else if (array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
            return  $_SERVER["HTTP_X_FORWARDED_FOR"];
        }else if (array_key_exists('REMOTE_ADDR', $_SERVER)) {
            return $_SERVER['REMOTE_ADDR'];
        }else if (array_key_exists('HTTP_CLIENT_IP', $_SERVER)) {
            return $_SERVER['HTTP_CLIENT_IP'];
        }
        return '';
    }

    $clientIp = getClientIP();
    $proceed = false;
    $whitelisted = in_array($clientIp, $ip_whitelist);
    $blacklisted = in_array($clientIp, $ip_blacklist);

    if($ip_ruleset == 'AND'){
        if($whitelisted == true && $blacklisted == false){
            $proceed = true;
        }
    } else
    if($ip_ruleset == 'OR'){
         if($whitelisted == true || $blacklisted == false){
            $proceed = true;
        }
    }

    if($proceed == false){
        trigger_error('User connection denied from: ' . $clientIp, E_USER_WARNING);

        if($ip_silent == false){
            fm_set_msg(lng('Access denied. IP restriction applicable'), 'error');
            fm_show_header_login();
            fm_show_message();
        }
        exit();
    }
}

// Checking if the user is logged in or not. If not, it will show the login form.
if ($use_auth) {
    if (isset($_SESSION[FM_SESSION_ID]['logged'], $auth_users[$_SESSION[FM_SESSION_ID]['logged']])) {
        // Logged
    } elseif (isset($_POST['fm_usr'], $_POST['fm_pwd'], $_POST['token'])) {
        // Logging In
        sleep(1);
        if(function_exists('password_verify')) {
            if (isset($auth_users[$_POST['fm_usr']]) && isset($_POST['fm_pwd']) && password_verify($_POST['fm_pwd'], $auth_users[$_POST['fm_usr']]) && verifyToken($_POST['token'])) {
                $_SESSION[FM_SESSION_ID]['logged'] = $_POST['fm_usr'];
                fm_set_msg(lng('You are logged in'));
                fm_redirect(FM_SELF_URL);
            } else {
                unset($_SESSION[FM_SESSION_ID]['logged']);
                fm_set_msg(lng('Login failed. Invalid username or password'), 'error');
                fm_redirect(FM_SELF_URL);
            }
        } else {
            fm_set_msg(lng('password_hash not supported, Upgrade PHP version'), 'error');;
        }
    } else {
        // Form
        unset($_SESSION[FM_SESSION_ID]['logged']);
        fm_show_header_login();
        ?>
        
".lng('Root path')." \"{$root_path}\" ".lng('not found!')." "; exit; } defined('FM_SHOW_HIDDEN') || define('FM_SHOW_HIDDEN', $show_hidden_files); defined('FM_ROOT_PATH') || define('FM_ROOT_PATH', $root_path); defined('FM_LANG') || define('FM_LANG', $lang); defined('FM_FILE_EXTENSION') || define('FM_FILE_EXTENSION', $allowed_file_extensions); defined('FM_UPLOAD_EXTENSION') || define('FM_UPLOAD_EXTENSION', $allowed_upload_extensions); defined('FM_EXCLUDE_ITEMS') || define('FM_EXCLUDE_ITEMS', (version_compare(PHP_VERSION, '7.0.0', '<') ? serialize($exclude_items) : $exclude_items)); defined('FM_DOC_VIEWER') || define('FM_DOC_VIEWER', $online_viewer); define('FM_READONLY', $global_readonly || ($use_auth && !empty($readonly_users) && isset($_SESSION[FM_SESSION_ID]['logged']) && in_array($_SESSION[FM_SESSION_ID]['logged'], $readonly_users))); define('FM_IS_WIN', DIRECTORY_SEPARATOR == '\\'); // always use ?p= if (!isset($_GET['p']) && empty($_FILES)) { fm_redirect(FM_SELF_URL . '?p='); } // get path $p = isset($_GET['p']) ? $_GET['p'] : (isset($_POST['p']) ? $_POST['p'] : ''); // clean path $p = fm_clean_path($p); // for ajax request - save $input = file_get_contents('php://input'); $_POST = (strpos($input, 'ajax') != FALSE && strpos($input, 'save') != FALSE) ? json_decode($input, true) : $_POST; // instead globals vars define('FM_PATH', $p); define('FM_USE_AUTH', $use_auth); define('FM_EDIT_FILE', $edit_files); defined('FM_ICONV_INPUT_ENC') || define('FM_ICONV_INPUT_ENC', $iconv_input_encoding); defined('FM_USE_HIGHLIGHTJS') || define('FM_USE_HIGHLIGHTJS', $use_highlightjs); defined('FM_HIGHLIGHTJS_STYLE') || define('FM_HIGHLIGHTJS_STYLE', $highlightjs_style); defined('FM_DATETIME_FORMAT') || define('FM_DATETIME_FORMAT', $datetime_format); unset($p, $use_auth, $iconv_input_encoding, $use_highlightjs, $highlightjs_style); /*************************** ACTIONS ***************************/ // Handle all AJAX Request if ((isset($_SESSION[FM_SESSION_ID]['logged'], $auth_users[$_SESSION[FM_SESSION_ID]['logged']]) || !FM_USE_AUTH) && isset($_POST['ajax'], $_POST['token']) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { header('HTTP/1.0 401 Unauthorized'); die("Invalid Token."); } //search : get list of files from the current folder if(isset($_POST['type']) && $_POST['type']=="search") { $dir = $_POST['path'] == "." ? '': $_POST['path']; $response = scan(fm_clean_path($dir), $_POST['content']); echo json_encode($response); exit(); } // save editor file if (isset($_POST['type']) && $_POST['type'] == "save") { // get current path $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } // check path if (!is_dir($path)) { fm_redirect(FM_SELF_URL . '?p='); } $file = $_GET['edit']; $file = fm_clean_path($file); $file = str_replace('/', '', $file); if ($file == '' || !is_file($path . '/' . $file)) { fm_set_msg(lng('File not found'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } header('X-XSS-Protection:0'); $file_path = $path . '/' . $file; $writedata = $_POST['content']; $fd = fopen($file_path, "w"); $write_results = @fwrite($fd, $writedata); fclose($fd); if ($write_results === false){ header("HTTP/1.1 500 Internal Server Error"); die("Could Not Write File! - Check Permissions / Ownership"); } die(true); } // backup files if (isset($_POST['type']) && $_POST['type'] == "backup" && !empty($_POST['file'])) { $fileName = fm_clean_path($_POST['file']); $fullPath = FM_ROOT_PATH . '/'; if (!empty($_POST['path'])) { $relativeDirPath = fm_clean_path($_POST['path']); $fullPath .= "{$relativeDirPath}/"; } $date = date("dMy-His"); $newFileName = "{$fileName}-{$date}.bak"; $fullyQualifiedFileName = $fullPath . $fileName; try { if (!file_exists($fullyQualifiedFileName)) { throw new Exception("File {$fileName} not found"); } if (copy($fullyQualifiedFileName, $fullPath . $newFileName)) { echo "Backup {$newFileName} created"; } else { throw new Exception("Could not copy file {$fileName}"); } } catch (Exception $e) { echo $e->getMessage(); } } // Save Config if (isset($_POST['type']) && $_POST['type'] == "settings") { global $cfg, $lang, $report_errors, $show_hidden_files, $lang_list, $hide_Cols, $theme; $newLng = $_POST['js-language']; fm_get_translations([]); if (!array_key_exists($newLng, $lang_list)) { $newLng = 'en'; } $erp = isset($_POST['js-error-report']) && $_POST['js-error-report'] == "true" ? true : false; $shf = isset($_POST['js-show-hidden']) && $_POST['js-show-hidden'] == "true" ? true : false; $hco = isset($_POST['js-hide-cols']) && $_POST['js-hide-cols'] == "true" ? true : false; $te3 = $_POST['js-theme-3']; if ($cfg->data['lang'] != $newLng) { $cfg->data['lang'] = $newLng; $lang = $newLng; } if ($cfg->data['error_reporting'] != $erp) { $cfg->data['error_reporting'] = $erp; $report_errors = $erp; } if ($cfg->data['show_hidden'] != $shf) { $cfg->data['show_hidden'] = $shf; $show_hidden_files = $shf; } if ($cfg->data['show_hidden'] != $shf) { $cfg->data['show_hidden'] = $shf; $show_hidden_files = $shf; } if ($cfg->data['hide_Cols'] != $hco) { $cfg->data['hide_Cols'] = $hco; $hide_Cols = $hco; } if ($cfg->data['theme'] != $te3) { $cfg->data['theme'] = $te3; $theme = $te3; } $cfg->save(); echo true; } // new password hash if (isset($_POST['type']) && $_POST['type'] == "pwdhash") { $res = isset($_POST['inputPassword2']) && !empty($_POST['inputPassword2']) ? password_hash($_POST['inputPassword2'], PASSWORD_DEFAULT) : ''; echo $res; } //upload using url if(isset($_POST['type']) && $_POST['type'] == "upload" && !empty($_REQUEST["uploadurl"])) { $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } function event_callback ($message) { global $callback; echo json_encode($message); } function get_file_path () { global $path, $fileinfo, $temp_file; return $path."/".basename($fileinfo->name); } $url = !empty($_REQUEST["uploadurl"]) && preg_match("|^http(s)?://.+$|", stripslashes($_REQUEST["uploadurl"])) ? stripslashes($_REQUEST["uploadurl"]) : null; //prevent 127.* domain and known ports $domain = parse_url($url, PHP_URL_HOST); $port = parse_url($url, PHP_URL_PORT); $knownPorts = [22, 23, 25, 3306]; if (preg_match("/^localhost$|^127(?:\.[0-9]+){0,2}\.[0-9]+$|^(?:0*\:)*?:?0*1$/i", $domain) || in_array($port, $knownPorts)) { $err = array("message" => "URL is not allowed"); event_callback(array("fail" => $err)); exit(); } $use_curl = false; $temp_file = tempnam(sys_get_temp_dir(), "upload-"); $fileinfo = new stdClass(); $fileinfo->name = trim(basename($url), ".\x00..\x20"); $allowed = (FM_UPLOAD_EXTENSION) ? explode(',', FM_UPLOAD_EXTENSION) : false; $ext = strtolower(pathinfo($fileinfo->name, PATHINFO_EXTENSION)); $isFileAllowed = ($allowed) ? in_array($ext, $allowed) : true; $err = false; if(!$isFileAllowed) { $err = array("message" => "File extension is not allowed"); event_callback(array("fail" => $err)); exit(); } if (!$url) { $success = false; } else if ($use_curl) { @$fp = fopen($temp_file, "w"); @$ch = curl_init($url); curl_setopt($ch, CURLOPT_NOPROGRESS, false ); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt($ch, CURLOPT_FILE, $fp); @$success = curl_exec($ch); $curl_info = curl_getinfo($ch); if (!$success) { $err = array("message" => curl_error($ch)); } @curl_close($ch); fclose($fp); $fileinfo->size = $curl_info["size_download"]; $fileinfo->type = $curl_info["content_type"]; } else { $ctx = stream_context_create(); @$success = copy($url, $temp_file, $ctx); if (!$success) { $err = error_get_last(); } } if ($success) { $success = rename($temp_file, strtok(get_file_path(), '?')); } if ($success) { event_callback(array("done" => $fileinfo)); } else { unlink($temp_file); if (!$err) { $err = array("message" => "Invalid url parameter"); } event_callback(array("fail" => $err)); } } exit(); } // Delete file / folder if (isset($_GET['del'], $_POST['token']) && !FM_READONLY) { $del = str_replace( '/', '', fm_clean_path( $_GET['del'] ) ); if ($del != '' && $del != '..' && $del != '.' && verifyToken($_POST['token'])) { $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } $is_dir = is_dir($path . '/' . $del); if (fm_rdelete($path . '/' . $del)) { $msg = $is_dir ? lng('Folder').' %s '.lng('Deleted') : lng('File').' %s '.lng('Deleted'); fm_set_msg(sprintf($msg, fm_enc($del))); } else { $msg = $is_dir ? lng('Folder').' %s '.lng('not deleted') : lng('File').' %s '.lng('not deleted'); fm_set_msg(sprintf($msg, fm_enc($del)), 'error'); } } else { fm_set_msg(lng('Invalid file or folder name'), 'error'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Create a new file/folder if (isset($_POST['newfilename'], $_POST['newfile'], $_POST['token']) && !FM_READONLY) { $type = urldecode($_POST['newfile']); $new = str_replace( '/', '', fm_clean_path( strip_tags( $_POST['newfilename'] ) ) ); if (fm_isvalid_filename($new) && $new != '' && $new != '..' && $new != '.' && verifyToken($_POST['token'])) { $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } if ($type == "file") { if (!file_exists($path . '/' . $new)) { if(fm_is_valid_ext($new)) { @fopen($path . '/' . $new, 'w') or die('Cannot open file: ' . $new); fm_set_msg(sprintf(lng('File').' %s '.lng('Created'), fm_enc($new))); } else { fm_set_msg(lng('File extension is not allowed'), 'error'); } } else { fm_set_msg(sprintf(lng('File').' %s '.lng('already exists'), fm_enc($new)), 'alert'); } } else { if (fm_mkdir($path . '/' . $new, false) === true) { fm_set_msg(sprintf(lng('Folder').' %s '.lng('Created'), $new)); } elseif (fm_mkdir($path . '/' . $new, false) === $path . '/' . $new) { fm_set_msg(sprintf(lng('Folder').' %s '.lng('already exists'), fm_enc($new)), 'alert'); } else { fm_set_msg(sprintf(lng('Folder').' %s '.lng('not created'), fm_enc($new)), 'error'); } } } else { fm_set_msg(lng('Invalid characters in file or folder name'), 'error'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Copy folder / file if (isset($_GET['copy'], $_GET['finish']) && !FM_READONLY) { // from $copy = urldecode($_GET['copy']); $copy = fm_clean_path($copy); // empty path if ($copy == '') { fm_set_msg(lng('Source path not defined'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // abs path from $from = FM_ROOT_PATH . '/' . $copy; // abs path to $dest = FM_ROOT_PATH; if (FM_PATH != '') { $dest .= '/' . FM_PATH; } $dest .= '/' . basename($from); // move? $move = isset($_GET['move']); $move = fm_clean_path(urldecode($move)); // copy/move/duplicate if ($from != $dest) { $msg_from = trim(FM_PATH . '/' . basename($from), '/'); if ($move) { // Move and to != from so just perform move $rename = fm_rename($from, $dest); if ($rename) { fm_set_msg(sprintf(lng('Moved from').' %s '.lng('to').' %s', fm_enc($copy), fm_enc($msg_from))); } elseif ($rename === null) { fm_set_msg(lng('File or folder with this path already exists'), 'alert'); } else { fm_set_msg(sprintf(lng('Error while moving from').' %s '.lng('to').' %s', fm_enc($copy), fm_enc($msg_from)), 'error'); } } else { // Not move and to != from so copy with original name if (fm_rcopy($from, $dest)) { fm_set_msg(sprintf(lng('Copied from').' %s '.lng('to').' %s', fm_enc($copy), fm_enc($msg_from))); } else { fm_set_msg(sprintf(lng('Error while copying from').' %s '.lng('to').' %s', fm_enc($copy), fm_enc($msg_from)), 'error'); } } } else { if (!$move){ //Not move and to = from so duplicate $msg_from = trim(FM_PATH . '/' . basename($from), '/'); $fn_parts = pathinfo($from); $extension_suffix = ''; if(!is_dir($from)){ $extension_suffix = '.'.$fn_parts['extension']; } //Create new name for duplicate $fn_duplicate = $fn_parts['dirname'].'/'.$fn_parts['filename'].'-'.date('YmdHis').$extension_suffix; $loop_count = 0; $max_loop = 1000; // Check if a file with the duplicate name already exists, if so, make new name (edge case...) while(file_exists($fn_duplicate) & $loop_count < $max_loop){ $fn_parts = pathinfo($fn_duplicate); $fn_duplicate = $fn_parts['dirname'].'/'.$fn_parts['filename'].'-copy'.$extension_suffix; $loop_count++; } if (fm_rcopy($from, $fn_duplicate, False)) { fm_set_msg(sprintf('Copied from %s to %s', fm_enc($copy), fm_enc($fn_duplicate))); } else { fm_set_msg(sprintf('Error while copying from %s to %s', fm_enc($copy), fm_enc($fn_duplicate)), 'error'); } } else{ fm_set_msg(lng('Paths must be not equal'), 'alert'); } } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Mass copy files/ folders if (isset($_POST['file'], $_POST['copy_to'], $_POST['finish'], $_POST['token']) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { fm_set_msg(lng('Invalid Token.'), 'error'); } // from $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } // to $copy_to_path = FM_ROOT_PATH; $copy_to = fm_clean_path($_POST['copy_to']); if ($copy_to != '') { $copy_to_path .= '/' . $copy_to; } if ($path == $copy_to_path) { fm_set_msg(lng('Paths must be not equal'), 'alert'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } if (!is_dir($copy_to_path)) { if (!fm_mkdir($copy_to_path, true)) { fm_set_msg('Unable to create destination folder', 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } } // move? $move = isset($_POST['move']); // copy/move $errors = 0; $files = $_POST['file']; if (is_array($files) && count($files)) { foreach ($files as $f) { if ($f != '') { $f = fm_clean_path($f); // abs path from $from = $path . '/' . $f; // abs path to $dest = $copy_to_path . '/' . $f; // do if ($move) { $rename = fm_rename($from, $dest); if ($rename === false) { $errors++; } } else { if (!fm_rcopy($from, $dest)) { $errors++; } } } } if ($errors == 0) { $msg = $move ? 'Selected files and folders moved' : 'Selected files and folders copied'; fm_set_msg($msg); } else { $msg = $move ? 'Error while moving items' : 'Error while copying items'; fm_set_msg($msg, 'error'); } } else { fm_set_msg(lng('Nothing selected'), 'alert'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Rename if (isset($_POST['rename_from'], $_POST['rename_to'], $_POST['token']) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { fm_set_msg("Invalid Token.", 'error'); } // old name $old = urldecode($_POST['rename_from']); $old = fm_clean_path($old); $old = str_replace('/', '', $old); // new name $new = urldecode($_POST['rename_to']); $new = fm_clean_path(strip_tags($new)); $new = str_replace('/', '', $new); // path $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } // rename if (fm_isvalid_filename($new) && $old != '' && $new != '') { if (fm_rename($path . '/' . $old, $path . '/' . $new)) { fm_set_msg(sprintf(lng('Renamed from').' %s '. lng('to').' %s', fm_enc($old), fm_enc($new))); } else { fm_set_msg(sprintf(lng('Error while renaming from').' %s '. lng('to').' %s', fm_enc($old), fm_enc($new)), 'error'); } } else { fm_set_msg(lng('Invalid characters in file name'), 'error'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Download if (isset($_GET['dl'], $_POST['token'])) { if(!verifyToken($_POST['token'])) { fm_set_msg("Invalid Token.", 'error'); } $dl = urldecode($_GET['dl']); $dl = fm_clean_path($dl); $dl = str_replace('/', '', $dl); $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } if ($dl != '' && is_file($path . '/' . $dl)) { fm_download_file($path . '/' . $dl, $dl, 1024); exit; } else { fm_set_msg(lng('File not found'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } } // Upload if (!empty($_FILES) && !FM_READONLY) { if(isset($_POST['token'])) { if(!verifyToken($_POST['token'])) { $response = array ('status' => 'error','info' => "Invalid Token."); echo json_encode($response); exit(); } } else { $response = array ('status' => 'error','info' => "Token Missing."); echo json_encode($response); exit(); } $chunkIndex = $_POST['dzchunkindex']; $chunkTotal = $_POST['dztotalchunkcount']; $fullPathInput = fm_clean_path($_REQUEST['fullpath']); $f = $_FILES; $path = FM_ROOT_PATH; $ds = DIRECTORY_SEPARATOR; if (FM_PATH != '') { $path .= '/' . FM_PATH; } $errors = 0; $uploads = 0; $allowed = (FM_UPLOAD_EXTENSION) ? explode(',', FM_UPLOAD_EXTENSION) : false; $response = array ( 'status' => 'error', 'info' => 'Oops! Try again' ); $filename = $f['file']['name']; $tmp_name = $f['file']['tmp_name']; $ext = pathinfo($filename, PATHINFO_FILENAME) != '' ? strtolower(pathinfo($filename, PATHINFO_EXTENSION)) : ''; $isFileAllowed = ($allowed) ? in_array($ext, $allowed) : true; if(!fm_isvalid_filename($filename) && !fm_isvalid_filename($fullPathInput)) { $response = array ( 'status' => 'error', 'info' => "Invalid File name!", ); echo json_encode($response); exit(); } $targetPath = $path . $ds; if ( is_writable($targetPath) ) { $fullPath = $path . '/' . basename($fullPathInput); $folder = substr($fullPath, 0, strrpos($fullPath, "/")); if (!is_dir($folder)) { $old = umask(0); mkdir($folder, 0777, true); umask($old); } if (empty($f['file']['error']) && !empty($tmp_name) && $tmp_name != 'none' && $isFileAllowed) { if ($chunkTotal){ $out = @fopen("{$fullPath}.part", $chunkIndex == 0 ? "wb" : "ab"); if ($out) { $in = @fopen($tmp_name, "rb"); if ($in) { if (PHP_VERSION_ID < 80009) { // workaround https://bugs.php.net/bug.php?id=81145 do { for (;;) { $buff = fread($in, 4096); if ($buff === false || $buff === '') { break; } fwrite($out, $buff); } } while (!feof($in)); } else { stream_copy_to_stream($in, $out); } $response = array ( 'status' => 'success', 'info' => "file upload successful" ); } else { $response = array ( 'status' => 'error', 'info' => "failed to open output stream", 'errorDetails' => error_get_last() ); } @fclose($in); @fclose($out); @unlink($tmp_name); $response = array ( 'status' => 'success', 'info' => "file upload successful" ); } else { $response = array ( 'status' => 'error', 'info' => "failed to open output stream" ); } if ($chunkIndex == $chunkTotal - 1) { if (file_exists ($fullPath)) { $ext_1 = $ext ? '.'.$ext : ''; $fullPathTarget = $path . '/' . basename($fullPathInput, $ext_1) .'_'. date('ymdHis'). $ext_1; } else { $fullPathTarget = $fullPath; } rename("{$fullPath}.part", $fullPathTarget); } } else if (move_uploaded_file($tmp_name, $fullPath)) { // Be sure that the file has been uploaded if ( file_exists($fullPath) ) { $response = array ( 'status' => 'success', 'info' => "file upload successful" ); } else { $response = array ( 'status' => 'error', 'info' => 'Couldn\'t upload the requested file.' ); } } else { $response = array ( 'status' => 'error', 'info' => "Error while uploading files. Uploaded files $uploads", ); } } } else { $response = array ( 'status' => 'error', 'info' => 'The specified folder for upload isn\'t writeable.' ); } // Return the response echo json_encode($response); exit(); } // Mass deleting if (isset($_POST['group'], $_POST['delete'], $_POST['token']) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { fm_set_msg(lng("Invalid Token."), 'error'); } $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } $errors = 0; $files = $_POST['file']; if (is_array($files) && count($files)) { foreach ($files as $f) { if ($f != '') { $new_path = $path . '/' . $f; if (!fm_rdelete($new_path)) { $errors++; } } } if ($errors == 0) { fm_set_msg(lng('Selected files and folder deleted')); } else { fm_set_msg(lng('Error while deleting items'), 'error'); } } else { fm_set_msg(lng('Nothing selected'), 'alert'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Pack files zip, tar if (isset($_POST['group'], $_POST['token']) && (isset($_POST['zip']) || isset($_POST['tar'])) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { fm_set_msg(lng("Invalid Token."), 'error'); } $path = FM_ROOT_PATH; $ext = 'zip'; if (FM_PATH != '') { $path .= '/' . FM_PATH; } //set pack type $ext = isset($_POST['tar']) ? 'tar' : 'zip'; if (($ext == "zip" && !class_exists('ZipArchive')) || ($ext == "tar" && !class_exists('PharData'))) { fm_set_msg(lng('Operations with archives are not available'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } $files = $_POST['file']; $sanitized_files = array(); // clean path foreach($files as $file){ array_push($sanitized_files, fm_clean_path($file)); } $files = $sanitized_files; if (!empty($files)) { chdir($path); if (count($files) == 1) { $one_file = reset($files); $one_file = basename($one_file); $zipname = $one_file . '_' . date('ymd_His') . '.'.$ext; } else { $zipname = 'archive_' . date('ymd_His') . '.'.$ext; } if($ext == 'zip') { $zipper = new FM_Zipper(); $res = $zipper->create($zipname, $files); } elseif ($ext == 'tar') { $tar = new FM_Zipper_Tar(); $res = $tar->create($zipname, $files); } if ($res) { fm_set_msg(sprintf(lng('Archive').' %s '.lng('Created'), fm_enc($zipname))); } else { fm_set_msg(lng('Archive not created'), 'error'); } } else { fm_set_msg(lng('Nothing selected'), 'alert'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Unpack zip, tar if (isset($_POST['unzip'], $_POST['token']) && !FM_READONLY) { if(!verifyToken($_POST['token'])) { fm_set_msg(lng("Invalid Token."), 'error'); } $unzip = urldecode($_POST['unzip']); $unzip = fm_clean_path($unzip); $unzip = str_replace('/', '', $unzip); $isValid = false; $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } if ($unzip != '' && is_file($path . '/' . $unzip)) { $zip_path = $path . '/' . $unzip; $ext = pathinfo($zip_path, PATHINFO_EXTENSION); $isValid = true; } else { fm_set_msg(lng('File not found'), 'error'); } if (($ext == "zip" && !class_exists('ZipArchive')) || ($ext == "tar" && !class_exists('PharData'))) { fm_set_msg(lng('Operations with archives are not available'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } if ($isValid) { //to folder $tofolder = ''; if (isset($_POST['tofolder'])) { $tofolder = pathinfo($zip_path, PATHINFO_FILENAME); if (fm_mkdir($path . '/' . $tofolder, true)) { $path .= '/' . $tofolder; } } if($ext == "zip") { $zipper = new FM_Zipper(); $res = $zipper->unzip($zip_path, $path); } elseif ($ext == "tar") { try { $gzipper = new PharData($zip_path); if (@$gzipper->extractTo($path,null, true)) { $res = true; } else { $res = false; } } catch (Exception $e) { //TODO:: need to handle the error $res = true; } } if ($res) { fm_set_msg(lng('Archive unpacked')); } else { fm_set_msg(lng('Archive not unpacked'), 'error'); } } else { fm_set_msg(lng('File not found'), 'error'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } // Change Perms (not for Windows) if (isset($_POST['chmod'], $_POST['token']) && !FM_READONLY && !FM_IS_WIN) { if(!verifyToken($_POST['token'])) { fm_set_msg(lng("Invalid Token."), 'error'); } $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } $file = $_POST['chmod']; $file = fm_clean_path($file); $file = str_replace('/', '', $file); if ($file == '' || (!is_file($path . '/' . $file) && !is_dir($path . '/' . $file))) { fm_set_msg(lng('File not found'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } $mode = 0; if (!empty($_POST['ur'])) { $mode |= 0400; } if (!empty($_POST['uw'])) { $mode |= 0200; } if (!empty($_POST['ux'])) { $mode |= 0100; } if (!empty($_POST['gr'])) { $mode |= 0040; } if (!empty($_POST['gw'])) { $mode |= 0020; } if (!empty($_POST['gx'])) { $mode |= 0010; } if (!empty($_POST['or'])) { $mode |= 0004; } if (!empty($_POST['ow'])) { $mode |= 0002; } if (!empty($_POST['ox'])) { $mode |= 0001; } if (@chmod($path . '/' . $file, $mode)) { fm_set_msg(lng('Permissions changed')); } else { fm_set_msg(lng('Permissions not changed'), 'error'); } $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); } /*************************** ACTIONS ***************************/ // get current path $path = FM_ROOT_PATH; if (FM_PATH != '') { $path .= '/' . FM_PATH; } // check path if (!is_dir($path)) { fm_redirect(FM_SELF_URL . '?p='); } // get parent folder $parent = fm_get_parent_path(FM_PATH); $objects = is_readable($path) ? scandir($path) : array(); $folders = array(); $files = array(); $current_path = array_slice(explode("/",$path), -1)[0]; if (is_array($objects) && fm_is_exclude_items($current_path)) { foreach ($objects as $file) { if ($file == '.' || $file == '..') { continue; } if (!FM_SHOW_HIDDEN && substr($file, 0, 1) === '.') { continue; } $new_path = $path . '/' . $file; if (@is_file($new_path) && fm_is_exclude_items($file)) { $files[] = $file; } elseif (@is_dir($new_path) && $file != '.' && $file != '..' && fm_is_exclude_items($file)) { $folders[] = $file; } } } if (!empty($files)) { natcasesort($files); } if (!empty($folders)) { natcasesort($folders); } // upload form if (isset($_GET['upload']) && !FM_READONLY) { fm_show_header(); // HEADER fm_show_nav_path(FM_PATH); // current path //get the allowed file extensions function getUploadExt() { $extArr = explode(',', FM_UPLOAD_EXTENSION); if(FM_UPLOAD_EXTENSION && $extArr) { array_walk($extArr, function(&$x) {$x = ".$x";}); return implode(',', $extArr); } return ''; } ?>
' . PHP_EOL; } ?>

: , ', $copy_files) ?>

:
/

 

Copying

Source path:
Destination folder:

Copy   Move   Cancel

/>
/>
/>

""

:
File size:
MIME-type:
:
:
:
: %
'.lng('Image size').': ' . (isset($image_size[0]) ? $image_size[0] : '0') . ' x ' . (isset($image_size[1]) ? $image_size[1] : '0') . '
'; } // Text info if ($is_text) { $is_utf8 = fm_is_utf8($content); if (function_exists('iconv')) { if (!$is_utf8) { $content = iconv(FM_ICONV_INPUT_ENC, 'UTF-8//IGNORE', $content); } } echo ''.lng('Charset').': ' . ($is_utf8 ? 'utf-8' : '8 bit') . '
'; } ?>

 
 
     
'; } else if($online_viewer == 'microsoft') { echo ''; } } elseif ($is_zip) { // ZIP content if ($filenames !== false) { echo ''; foreach ($filenames as $fn) { if ($fn['folder']) { echo '' . fm_enc($fn['name']) . '
'; } else { echo $fn['name'] . ' (' . fm_get_filesize($fn['filesize']) . ')
'; } } echo '
'; } else { echo '

'.lng('Error while fetching archive info').'

'; } } elseif ($is_image) { // Image content if (in_array($ext, array('gif', 'jpg', 'jpeg', 'png', 'bmp', 'ico', 'svg', 'webp', 'avif'))) { echo '

'; } } elseif ($is_audio) { // Audio content echo '

'; } elseif ($is_video) { // Video content echo '
'; } elseif ($is_text) { if (FM_USE_HIGHLIGHTJS) { // highlight $hljs_classes = array( 'shtml' => 'xml', 'htaccess' => 'apache', 'phtml' => 'php', 'lock' => 'json', 'svg' => 'xml', ); $hljs_class = isset($hljs_classes[$ext]) ? 'lang-' . $hljs_classes[$ext] : 'lang-' . $ext; if (empty($ext) || in_array(strtolower($file), fm_get_text_names()) || preg_match('#\.min\.(css|js)$#i', $file)) { $hljs_class = 'nohighlight'; } $content = '
' . fm_enc($content) . '
'; } elseif (in_array($ext, array('php', 'php4', 'php5', 'phtml', 'phps'))) { // php highlight $content = highlight_string($content, true); } else { $content = '
' . fm_enc($content) . '
'; } echo $content; } ?>
'. $file. ''; header('X-XSS-Protection:0'); fm_show_header(); // HEADER fm_show_nav_path(FM_PATH); // current path $file_url = FM_ROOT_URL . fm_convert_win((FM_PATH != '' ? '/' . FM_PATH : '') . '/' . $file); $file_path = $path . '/' . $file; // normal editer $isNormalEditor = true; if (isset($_GET['env'])) { if ($_GET['env'] == "ace") { $isNormalEditor = false; } } // Save File if (isset($_POST['savedata'])) { $writedata = $_POST['savedata']; $fd = fopen($file_path, "w"); @fwrite($fd, $writedata); fclose($fd); fm_set_msg(lng('File Saved Successfully')); } $ext = strtolower(pathinfo($file_path, PATHINFO_EXTENSION)); $mime_type = fm_get_mime_type($file_path); $filesize = filesize($file_path); $is_text = false; $content = ''; // for text if (in_array($ext, fm_get_text_exts()) || substr($mime_type, 0, 4) == 'text' || in_array($mime_type, fm_get_text_mimes())) { $is_text = true; $content = file_get_contents($file_path); } ?>
' . htmlspecialchars($content) . ''; echo ''; } elseif ($is_text) { echo '
' . htmlspecialchars($content) . '
'; } else { fm_set_msg(lng('FILE EXTENSION HAS NOT SUPPORTED'), 'error'); } ?>

:

 

'?'); } if ($group === false) { $group = array('name' => '?'); } } else { $owner = array('name' => '?'); $group = array('name' => '?'); } ?> '?'); } if ($group === false) { $group = array('name' => '?'); } } else { $owner = array('name' => '?'); $group = array('name' => '?'); } ?>
..
>
' . readlink($path . '/' . $f) . '' : '') ?>
">
>
' . readlink($path . '/' . $f) . '' : '') ?>
">
'.fm_get_filesize($all_files_size).'' ?> '.$num_files.'' ?> '.$num_folders.'' ?>
"; return; } echo "$external[$key]"; } /** * Verify CSRF TOKEN and remove after cerify * @param string $token * @return bool */ function verifyToken($token) { if (hash_equals($_SESSION['token'], $token)) { return true; } return false; } /** * Delete file or folder (recursively) * @param string $path * @return bool */ function fm_rdelete($path) { if (is_link($path)) { return unlink($path); } elseif (is_dir($path)) { $objects = scandir($path); $ok = true; if (is_array($objects)) { foreach ($objects as $file) { if ($file != '.' && $file != '..') { if (!fm_rdelete($path . '/' . $file)) { $ok = false; } } } } return ($ok) ? rmdir($path) : false; } elseif (is_file($path)) { return unlink($path); } return false; } /** * Recursive chmod * @param string $path * @param int $filemode * @param int $dirmode * @return bool * @todo Will use in mass chmod */ function fm_rchmod($path, $filemode, $dirmode) { if (is_dir($path)) { if (!chmod($path, $dirmode)) { return false; } $objects = scandir($path); if (is_array($objects)) { foreach ($objects as $file) { if ($file != '.' && $file != '..') { if (!fm_rchmod($path . '/' . $file, $filemode, $dirmode)) { return false; } } } } return true; } elseif (is_link($path)) { return true; } elseif (is_file($path)) { return chmod($path, $filemode); } return false; } /** * Check the file extension which is allowed or not * @param string $filename * @return bool */ function fm_is_valid_ext($filename) { $allowed = (FM_FILE_EXTENSION) ? explode(',', FM_FILE_EXTENSION) : false; $ext = pathinfo($filename, PATHINFO_EXTENSION); $isFileAllowed = ($allowed) ? in_array($ext, $allowed) : true; return ($isFileAllowed) ? true : false; } /** * Safely rename * @param string $old * @param string $new * @return bool|null */ function fm_rename($old, $new) { $isFileAllowed = fm_is_valid_ext($new); if(!is_dir($old)) { if (!$isFileAllowed) return false; } return (!file_exists($new) && file_exists($old)) ? rename($old, $new) : null; } /** * Copy file or folder (recursively). * @param string $path * @param string $dest * @param bool $upd Update files * @param bool $force Create folder with same names instead file * @return bool */ function fm_rcopy($path, $dest, $upd = true, $force = true) { if (is_dir($path)) { if (!fm_mkdir($dest, $force)) { return false; } $objects = scandir($path); $ok = true; if (is_array($objects)) { foreach ($objects as $file) { if ($file != '.' && $file != '..') { if (!fm_rcopy($path . '/' . $file, $dest . '/' . $file)) { $ok = false; } } } } return $ok; } elseif (is_file($path)) { return fm_copy($path, $dest, $upd); } return false; } /** * Safely create folder * @param string $dir * @param bool $force * @return bool */ function fm_mkdir($dir, $force) { if (file_exists($dir)) { if (is_dir($dir)) { return $dir; } elseif (!$force) { return false; } unlink($dir); } return mkdir($dir, 0777, true); } /** * Safely copy file * @param string $f1 * @param string $f2 * @param bool $upd Indicates if file should be updated with new content * @return bool */ function fm_copy($f1, $f2, $upd) { $time1 = filemtime($f1); if (file_exists($f2)) { $time2 = filemtime($f2); if ($time2 >= $time1 && $upd) { return false; } } $ok = copy($f1, $f2); if ($ok) { touch($f2, $time1); } return $ok; } /** * Get mime type * @param string $file_path * @return mixed|string */ function fm_get_mime_type($file_path) { if (function_exists('finfo_open')) { $finfo = finfo_open(FILEINFO_MIME_TYPE); $mime = finfo_file($finfo, $file_path); finfo_close($finfo); return $mime; } elseif (function_exists('mime_content_type')) { return mime_content_type($file_path); } elseif (!stristr(ini_get('disable_functions'), 'shell_exec')) { $file = escapeshellarg($file_path); $mime = shell_exec('file -bi ' . $file); return $mime; } else { return '--'; } } /** * HTTP Redirect * @param string $url * @param int $code */ function fm_redirect($url, $code = 302) { header('Location: ' . $url, true, $code); exit; } /** * Path traversal prevention and clean the url * It replaces (consecutive) occurrences of / and \\ with whatever is in DIRECTORY_SEPARATOR, and processes /. and /.. fine. * @param $path * @return string */ function get_absolute_path($path) { $path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $path); $parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), 'strlen'); $absolutes = array(); foreach ($parts as $part) { if ('.' == $part) continue; if ('..' == $part) { array_pop($absolutes); } else { $absolutes[] = $part; } } return implode(DIRECTORY_SEPARATOR, $absolutes); } /** * Clean path * @param string $path * @return string */ function fm_clean_path($path, $trim = true) { $path = $trim ? trim($path) : $path; $path = trim($path, '\\/'); $path = str_replace(array('../', '..\\'), '', $path); $path = get_absolute_path($path); if ($path == '..') { $path = ''; } return str_replace('\\', '/', $path); } /** * Get parent path * @param string $path * @return bool|string */ function fm_get_parent_path($path) { $path = fm_clean_path($path); if ($path != '') { $array = explode('/', $path); if (count($array) > 1) { $array = array_slice($array, 0, -1); return implode('/', $array); } return ''; } return false; } function fm_get_display_path($file_path) { global $path_display_mode, $root_path, $root_url; switch ($path_display_mode) { case 'relative': return array( 'label' => 'Path', 'path' => fm_enc(fm_convert_win(str_replace($root_path, '', $file_path))) ); case 'host': $relative_path = str_replace($root_path, '', $file_path); return array( 'label' => 'Host Path', 'path' => fm_enc(fm_convert_win('/' . $root_url . '/' . ltrim(str_replace('\\', '/', $relative_path), '/'))) ); case 'full': default: return array( 'label' => 'Full Path', 'path' => fm_enc(fm_convert_win($file_path)) ); } } /** * Check file is in exclude list * @param string $file * @return bool */ function fm_is_exclude_items($file) { $ext = strtolower(pathinfo($file, PATHINFO_EXTENSION)); if (isset($exclude_items) and sizeof($exclude_items)) { unset($exclude_items); } $exclude_items = FM_EXCLUDE_ITEMS; if (version_compare(PHP_VERSION, '7.0.0', '<')) { $exclude_items = unserialize($exclude_items); } if (!in_array($file, $exclude_items) && !in_array("*.$ext", $exclude_items)) { return true; } return false; } /** * get language translations from json file * @param int $tr * @return array */ function fm_get_translations($tr) { try { $content = @file_get_contents('translation.json'); if($content !== FALSE) { $lng = json_decode($content, TRUE); global $lang_list; foreach ($lng["language"] as $key => $value) { $code = $value["code"]; $lang_list[$code] = $value["name"]; if ($tr) $tr[$code] = $value["translation"]; } return $tr; } } catch (Exception $e) { echo $e; } } /** * @param string $file * Recover all file sizes larger than > 2GB. * Works on php 32bits and 64bits and supports linux * @return int|string */ function fm_get_size($file) { static $iswin; static $isdarwin; if (!isset($iswin)) { $iswin = (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN'); } if (!isset($isdarwin)) { $isdarwin = (strtoupper(substr(PHP_OS, 0)) == "DARWIN"); } static $exec_works; if (!isset($exec_works)) { $exec_works = (function_exists('exec') && !ini_get('safe_mode') && @exec('echo EXEC') == 'EXEC'); } // try a shell command if ($exec_works) { $arg = escapeshellarg($file); $cmd = ($iswin) ? "for %F in (\"$file\") do @echo %~zF" : ($isdarwin ? "stat -f%z $arg" : "stat -c%s $arg"); @exec($cmd, $output); if (is_array($output) && ctype_digit($size = trim(implode("\n", $output)))) { return $size; } } // try the Windows COM interface if ($iswin && class_exists("COM")) { try { $fsobj = new COM('Scripting.FileSystemObject'); $f = $fsobj->GetFile( realpath($file) ); $size = $f->Size; } catch (Exception $e) { $size = null; } if (ctype_digit($size)) { return $size; } } // if all else fails return filesize($file); } /** * Get nice filesize * @param int $size * @return string */ function fm_get_filesize($size) { $size = (float) $size; $units = array('B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'); $power = ($size > 0) ? floor(log($size, 1024)) : 0; $power = ($power > (count($units) - 1)) ? (count($units) - 1) : $power; return sprintf('%s %s', round($size / pow(1024, $power), 2), $units[$power]); } /** * Get total size of directory tree. * * @param string $directory Relative or absolute directory name. * @return int Total number of bytes. */ function fm_get_directorysize($directory) { $bytes = 0; $directory = realpath($directory); if ($directory !== false && $directory != '' && file_exists($directory)){ foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory, FilesystemIterator::SKIP_DOTS)) as $file){ $bytes += $file->getSize(); } } return $bytes; } /** * Get info about zip archive * @param string $path * @return array|bool */ function fm_get_zif_info($path, $ext) { if ($ext == 'zip' && function_exists('zip_open')) { $arch = @zip_open($path); if ($arch) { $filenames = array(); while ($zip_entry = @zip_read($arch)) { $zip_name = @zip_entry_name($zip_entry); $zip_folder = substr($zip_name, -1) == '/'; $filenames[] = array( 'name' => $zip_name, 'filesize' => @zip_entry_filesize($zip_entry), 'compressed_size' => @zip_entry_compressedsize($zip_entry), 'folder' => $zip_folder //'compression_method' => zip_entry_compressionmethod($zip_entry), ); } @zip_close($arch); return $filenames; } } elseif($ext == 'tar' && class_exists('PharData')) { $archive = new PharData($path); $filenames = array(); foreach(new RecursiveIteratorIterator($archive) as $file) { $parent_info = $file->getPathInfo(); $zip_name = str_replace("phar://".$path, '', $file->getPathName()); $zip_name = substr($zip_name, ($pos = strpos($zip_name, '/')) !== false ? $pos + 1 : 0); $zip_folder = $parent_info->getFileName(); $zip_info = new SplFileInfo($file); $filenames[] = array( 'name' => $zip_name, 'filesize' => $zip_info->getSize(), 'compressed_size' => $file->getCompressedSize(), 'folder' => $zip_folder ); } return $filenames; } return false; } /** * Encode html entities * @param string $text * @return string */ function fm_enc($text) { return htmlspecialchars($text, ENT_QUOTES, 'UTF-8'); } /** * Prevent XSS attacks * @param string $text * @return string */ function fm_isvalid_filename($text) { return (strpbrk($text, '/?%*:|"<>') === FALSE) ? true : false; } /** * Save message in session * @param string $msg * @param string $status */ function fm_set_msg($msg, $status = 'ok') { $_SESSION[FM_SESSION_ID]['message'] = $msg; $_SESSION[FM_SESSION_ID]['status'] = $status; } /** * Check if string is in UTF-8 * @param string $string * @return int */ function fm_is_utf8($string) { return preg_match('//u', $string); } /** * Convert file name to UTF-8 in Windows * @param string $filename * @return string */ function fm_convert_win($filename) { if (FM_IS_WIN && function_exists('iconv')) { $filename = iconv(FM_ICONV_INPUT_ENC, 'UTF-8//IGNORE', $filename); } return $filename; } /** * @param $obj * @return array */ function fm_object_to_array($obj) { if (!is_object($obj) && !is_array($obj)) { return $obj; } if (is_object($obj)) { $obj = get_object_vars($obj); } return array_map('fm_object_to_array', $obj); } /** * Get CSS classname for file * @param string $path * @return string */ function fm_get_file_icon_class($path) { // get extension $ext = strtolower(pathinfo($path, PATHINFO_EXTENSION)); switch ($ext) { case 'ico': case 'gif': case 'jpg': case 'jpeg': case 'jpc': case 'jp2': case 'jpx': case 'xbm': case 'wbmp': case 'png': case 'bmp': case 'tif': case 'tiff': case 'webp': case 'avif': case 'svg': $img = 'fa fa-picture-o'; break; case 'passwd': case 'ftpquota': case 'sql': case 'js': case 'ts': case 'jsx': case 'tsx': case 'hbs': case 'json': case 'sh': case 'config': case 'twig': case 'tpl': case 'md': case 'gitignore': case 'c': case 'cpp': case 'cs': case 'py': case 'rs': case 'map': case 'lock': case 'dtd': $img = 'fa fa-file-code-o'; break; case 'txt': case 'ini': case 'conf': case 'log': case 'htaccess': case 'yaml': case 'yml': case 'toml': case 'tmp': case 'top': case 'bot': case 'dat': case 'bak': case 'htpasswd': case 'pl': $img = 'fa fa-file-text-o'; break; case 'css': case 'less': case 'sass': case 'scss': $img = 'fa fa-css3'; break; case 'bz2': case 'zip': case 'rar': case 'gz': case 'tar': case '7z': case 'xz': $img = 'fa fa-file-archive-o'; break; case 'php': case 'php4': case 'php5': case 'phps': case 'phtml': $img = 'fa fa-code'; break; case 'htm': case 'html': case 'shtml': case 'xhtml': $img = 'fa fa-html5'; break; case 'xml': case 'xsl': $img = 'fa fa-file-excel-o'; break; case 'wav': case 'mp3': case 'mp2': case 'm4a': case 'aac': case 'ogg': case 'oga': case 'wma': case 'mka': case 'flac': case 'ac3': case 'tds': $img = 'fa fa-music'; break; case 'm3u': case 'm3u8': case 'pls': case 'cue': case 'xspf': $img = 'fa fa-headphones'; break; case 'avi': case 'mpg': case 'mpeg': case 'mp4': case 'm4v': case 'flv': case 'f4v': case 'ogm': case 'ogv': case 'mov': case 'mkv': case '3gp': case 'asf': case 'wmv': case 'webm': $img = 'fa fa-file-video-o'; break; case 'eml': case 'msg': $img = 'fa fa-envelope-o'; break; case 'xls': case 'xlsx': case 'ods': $img = 'fa fa-file-excel-o'; break; case 'csv': $img = 'fa fa-file-text-o'; break; case 'bak': case 'swp': $img = 'fa fa-clipboard'; break; case 'doc': case 'docx': case 'odt': $img = 'fa fa-file-word-o'; break; case 'ppt': case 'pptx': $img = 'fa fa-file-powerpoint-o'; break; case 'ttf': case 'ttc': case 'otf': case 'woff': case 'woff2': case 'eot': case 'fon': $img = 'fa fa-font'; break; case 'pdf': $img = 'fa fa-file-pdf-o'; break; case 'psd': case 'ai': case 'eps': case 'fla': case 'swf': $img = 'fa fa-file-image-o'; break; case 'exe': case 'msi': $img = 'fa fa-file-o'; break; case 'bat': $img = 'fa fa-terminal'; break; default: $img = 'fa fa-info-circle'; } return $img; } /** * Get image files extensions * @return array */ function fm_get_image_exts() { return array('ico', 'gif', 'jpg', 'jpeg', 'jpc', 'jp2', 'jpx', 'xbm', 'wbmp', 'png', 'bmp', 'tif', 'tiff', 'psd', 'svg', 'webp', 'avif'); } /** * Get video files extensions * @return array */ function fm_get_video_exts() { return array('avi', 'webm', 'wmv', 'mp4', 'm4v', 'ogm', 'ogv', 'mov', 'mkv'); } /** * Get audio files extensions * @return array */ function fm_get_audio_exts() { return array('wav', 'mp3', 'ogg', 'm4a'); } /** * Get text file extensions * @return array */ function fm_get_text_exts() { return array( 'txt', 'css', 'ini', 'conf', 'log', 'htaccess', 'passwd', 'ftpquota', 'sql', 'js', 'ts', 'jsx', 'tsx', 'mjs', 'json', 'sh', 'config', 'php', 'php4', 'php5', 'phps', 'phtml', 'htm', 'html', 'shtml', 'xhtml', 'xml', 'xsl', 'm3u', 'm3u8', 'pls', 'cue', 'bash', 'vue', 'eml', 'msg', 'csv', 'bat', 'twig', 'tpl', 'md', 'gitignore', 'less', 'sass', 'scss', 'c', 'cpp', 'cs', 'py', 'go', 'zsh', 'swift', 'map', 'lock', 'dtd', 'svg', 'asp', 'aspx', 'asx', 'asmx', 'ashx', 'jsp', 'jspx', 'cgi', 'dockerfile', 'ruby', 'yml', 'yaml', 'toml', 'vhost', 'scpt', 'applescript', 'csx', 'cshtml', 'c++', 'coffee', 'cfm', 'rb', 'graphql', 'mustache', 'jinja', 'http', 'handlebars', 'java', 'es', 'es6', 'markdown', 'wiki', 'tmp', 'top', 'bot', 'dat', 'bak', 'htpasswd', 'pl' ); } /** * Get mime types of text files * @return array */ function fm_get_text_mimes() { return array( 'application/xml', 'application/javascript', 'application/x-javascript', 'image/svg+xml', 'message/rfc822', 'application/json', ); } /** * Get file names of text files w/o extensions * @return array */ function fm_get_text_names() { return array( 'license', 'readme', 'authors', 'contributors', 'changelog', ); } /** * Get online docs viewer supported files extensions * @return array */ function fm_get_onlineViewer_exts() { return array('doc', 'docx', 'xls', 'xlsx', 'pdf', 'ppt', 'pptx', 'ai', 'psd', 'dxf', 'xps', 'rar', 'odt', 'ods'); } /** * It returns the mime type of a file based on its extension. * @param extension The file extension of the file you want to get the mime type for. * @return string|string[] The mime type of the file. */ function fm_get_file_mimes($extension) { $fileTypes['swf'] = 'application/x-shockwave-flash'; $fileTypes['pdf'] = 'application/pdf'; $fileTypes['exe'] = 'application/octet-stream'; $fileTypes['zip'] = 'application/zip'; $fileTypes['doc'] = 'application/msword'; $fileTypes['xls'] = 'application/vnd.ms-excel'; $fileTypes['ppt'] = 'application/vnd.ms-powerpoint'; $fileTypes['gif'] = 'image/gif'; $fileTypes['png'] = 'image/png'; $fileTypes['jpeg'] = 'image/jpg'; $fileTypes['jpg'] = 'image/jpg'; $fileTypes['webp'] = 'image/webp'; $fileTypes['avif'] = 'image/avif'; $fileTypes['rar'] = 'application/rar'; $fileTypes['ra'] = 'audio/x-pn-realaudio'; $fileTypes['ram'] = 'audio/x-pn-realaudio'; $fileTypes['ogg'] = 'audio/x-pn-realaudio'; $fileTypes['wav'] = 'video/x-msvideo'; $fileTypes['wmv'] = 'video/x-msvideo'; $fileTypes['avi'] = 'video/x-msvideo'; $fileTypes['asf'] = 'video/x-msvideo'; $fileTypes['divx'] = 'video/x-msvideo'; $fileTypes['mp3'] = 'audio/mpeg'; $fileTypes['mp4'] = 'audio/mpeg'; $fileTypes['mpeg'] = 'video/mpeg'; $fileTypes['mpg'] = 'video/mpeg'; $fileTypes['mpe'] = 'video/mpeg'; $fileTypes['mov'] = 'video/quicktime'; $fileTypes['swf'] = 'video/quicktime'; $fileTypes['3gp'] = 'video/quicktime'; $fileTypes['m4a'] = 'video/quicktime'; $fileTypes['aac'] = 'video/quicktime'; $fileTypes['m3u'] = 'video/quicktime'; $fileTypes['php'] = ['application/x-php']; $fileTypes['html'] = ['text/html']; $fileTypes['txt'] = ['text/plain']; //Unknown mime-types should be 'application/octet-stream' if(empty($fileTypes[$extension])) { $fileTypes[$extension] = ['application/octet-stream']; } return $fileTypes[$extension]; } /** * This function scans the files and folder recursively, and return matching files * @param string $dir * @param string $filter * @return array|null */ function scan($dir = '', $filter = '') { $path = FM_ROOT_PATH.'/'.$dir; if($path) { $ite = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path)); $rii = new RegexIterator($ite, "/(" . $filter . ")/i"); $files = array(); foreach ($rii as $file) { if (!$file->isDir()) { $fileName = $file->getFilename(); $location = str_replace(FM_ROOT_PATH, '', $file->getPath()); $files[] = array( "name" => $fileName, "type" => "file", "path" => $location, ); } } return $files; } } /** * Parameters: downloadFile(File Location, File Name, * max speed, is streaming * If streaming - videos will show as videos, images as images * instead of download prompt * https://stackoverflow.com/a/13821992/1164642 */ function fm_download_file($fileLocation, $fileName, $chunkSize = 1024) { if (connection_status() != 0) return (false); $extension = pathinfo($fileName, PATHINFO_EXTENSION); $contentType = fm_get_file_mimes($extension); if(is_array($contentType)) { $contentType = implode(' ', $contentType); } $size = filesize($fileLocation); if ($size == 0) { fm_set_msg(lng('Zero byte file! Aborting download'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); return (false); } @ini_set('magic_quotes_runtime', 0); $fp = fopen("$fileLocation", "rb"); if ($fp === false) { fm_set_msg(lng('Cannot open file! Aborting download'), 'error'); $FM_PATH=FM_PATH; fm_redirect(FM_SELF_URL . '?p=' . urlencode($FM_PATH)); return (false); } // headers header('Content-Description: File Transfer'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header("Content-Transfer-Encoding: binary"); header("Content-Type: $contentType"); $contentDisposition = 'attachment'; if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) { $fileName = preg_replace('/\./', '%2e', $fileName, substr_count($fileName, '.') - 1); header("Content-Disposition: $contentDisposition;filename=\"$fileName\""); } else { header("Content-Disposition: $contentDisposition;filename=\"$fileName\""); } header("Accept-Ranges: bytes"); $range = 0; if (isset($_SERVER['HTTP_RANGE'])) { list($a, $range) = explode("=", $_SERVER['HTTP_RANGE']); str_replace($range, "-", $range); $size2 = $size - 1; $new_length = $size - $range; header("HTTP/1.1 206 Partial Content"); header("Content-Length: $new_length"); header("Content-Range: bytes $range$size2/$size"); } else { $size2 = $size - 1; header("Content-Range: bytes 0-$size2/$size"); header("Content-Length: " . $size); } $fileLocation = realpath($fileLocation); while (ob_get_level()) ob_end_clean(); readfile($fileLocation); fclose($fp); return ((connection_status() == 0) and !connection_aborted()); } /** * If the theme is dark, return the text-white and bg-dark classes. * @return string the value of the variable. */ function fm_get_theme() { $result = ''; if(FM_THEME == "dark") { $result = "text-white bg-dark"; } return $result; } /** * Class to work with zip files (using ZipArchive) */ class FM_Zipper { private $zip; public function __construct() { $this->zip = new ZipArchive(); } /** * Create archive with name $filename and files $files (RELATIVE PATHS!) * @param string $filename * @param array|string $files * @return bool */ public function create($filename, $files) { $res = $this->zip->open($filename, ZipArchive::CREATE); if ($res !== true) { return false; } if (is_array($files)) { foreach ($files as $f) { $f = fm_clean_path($f); if (!$this->addFileOrDir($f)) { $this->zip->close(); return false; } } $this->zip->close(); return true; } else { if ($this->addFileOrDir($files)) { $this->zip->close(); return true; } return false; } } /** * Extract archive $filename to folder $path (RELATIVE OR ABSOLUTE PATHS) * @param string $filename * @param string $path * @return bool */ public function unzip($filename, $path) { $res = $this->zip->open($filename); if ($res !== true) { return false; } if ($this->zip->extractTo($path)) { $this->zip->close(); return true; } return false; } /** * Add file/folder to archive * @param string $filename * @return bool */ private function addFileOrDir($filename) { if (is_file($filename)) { return $this->zip->addFile($filename); } elseif (is_dir($filename)) { return $this->addDir($filename); } return false; } /** * Add folder recursively * @param string $path * @return bool */ private function addDir($path) { if (!$this->zip->addEmptyDir($path)) { return false; } $objects = scandir($path); if (is_array($objects)) { foreach ($objects as $file) { if ($file != '.' && $file != '..') { if (is_dir($path . '/' . $file)) { if (!$this->addDir($path . '/' . $file)) { return false; } } elseif (is_file($path . '/' . $file)) { if (!$this->zip->addFile($path . '/' . $file)) { return false; } } } } return true; } return false; } } /** * Class to work with Tar files (using PharData) */ class FM_Zipper_Tar { private $tar; public function __construct() { $this->tar = null; } /** * Create archive with name $filename and files $files (RELATIVE PATHS!) * @param string $filename * @param array|string $files * @return bool */ public function create($filename, $files) { $this->tar = new PharData($filename); if (is_array($files)) { foreach ($files as $f) { $f = fm_clean_path($f); if (!$this->addFileOrDir($f)) { return false; } } return true; } else { if ($this->addFileOrDir($files)) { return true; } return false; } } /** * Extract archive $filename to folder $path (RELATIVE OR ABSOLUTE PATHS) * @param string $filename * @param string $path * @return bool */ public function unzip($filename, $path) { $res = $this->tar->open($filename); if ($res !== true) { return false; } if ($this->tar->extractTo($path)) { return true; } return false; } /** * Add file/folder to archive * @param string $filename * @return bool */ private function addFileOrDir($filename) { if (is_file($filename)) { try { $this->tar->addFile($filename); return true; } catch (Exception $e) { return false; } } elseif (is_dir($filename)) { return $this->addDir($filename); } return false; } /** * Add folder recursively * @param string $path * @return bool */ private function addDir($path) { $objects = scandir($path); if (is_array($objects)) { foreach ($objects as $file) { if ($file != '.' && $file != '..') { if (is_dir($path . '/' . $file)) { if (!$this->addDir($path . '/' . $file)) { return false; } } elseif (is_file($path . '/' . $file)) { try { $this->tar->addFile($path . '/' . $file); } catch (Exception $e) { return false; } } } } return true; } return false; } } /** * Save Configuration */ class FM_Config { var $data; function __construct() { global $root_path, $root_url, $CONFIG; $fm_url = $root_url.$_SERVER["PHP_SELF"]; $this->data = array( 'lang' => 'en', 'error_reporting' => true, 'show_hidden' => true ); $data = false; if (strlen($CONFIG)) { $data = fm_object_to_array(json_decode($CONFIG)); } else { $msg = 'Tiny File Manager
Error: Cannot load configuration'; if (substr($fm_url, -1) == '/') { $fm_url = rtrim($fm_url, '/'); $msg .= '
'; $msg .= '
Seems like you have a trailing slash on the URL.'; $msg .= '
Try this link: ' . $fm_url . ''; } die($msg); } if (is_array($data) && count($data)) $this->data = $data; else $this->save(); } function save() { $fm_file = __FILE__; $var_name = '$CONFIG'; $var_value = var_export(json_encode($this->data), true); $config_string = " ' . $_SESSION[FM_SESSION_ID]['message'] . '

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Biggest Open Problems in Natural Language Processing by Sciforce Sciforce

10 Major Challenges of Using Natural Language Processing

nlp problem

It can take some time to make sure your bot understands your the right responses. And to see the best results with generative AI chatbots, it’s important to make sure your knowledge base (or whichever data source your bot is connected to) covers all of your FAQs and doesn’t contain conflicting information. We’ve covered quick and efficient approaches to generate compact sentence embeddings. However, by omitting the order of words, we are discarding all of the syntactic information of our sentences.

Smarter versions of chatbots are able to connect with older APIs in a business’s work environment and extract relevant information for its own use. In fact, a report by Social Media Today states that the quantum of people using voice search to search for products is 50%. With that in mind, a good chatbot needs to have a robust NLP architecture that enables it to process user requests and answer with relevant information. That means chatbots are starting to leave behind their bad reputation — as clunky, frustrating, and unable to understand the most basic requests. In fact, according to our 2023 CX trends guide, 88% of business leaders reported that their customers’ attitude towards AI and automation had improved over the past year.

How to create bigrams using Gensim’s Phraser ?

You’ll experience an increased customer retention rate after using chatbots. It reduces the effort and cost of acquiring a new customer each time by increasing loyalty of the existing ones. Chatbots give the customers the time and attention they want to make them feel important and happy. Though natural language processing tasks are closely intertwined, they can be subdivided into categories for convenience. Neural machine translation, based on then-newly-invented sequence-to-sequence transformations, made obsolete the intermediate steps, such as word alignment, previously necessary for statistical machine translation. Stephan suggested that incentives exist in the form of unsolved problems.

  • This is made possible because of all the components that go into creating an effective NLP chatbot.
  • A first step is to understand the types of errors our model makes, and which kind of errors are least desirable.
  • These seem like the most relevant words out of all previous models and therefore we’re more comfortable deploying in to production.
  • Data Science Stack Exchange is a question and answer site for Data science professionals, Machine Learning specialists, and those interested in learning more about the field.
  • Chatbots are now required to “interpret” user intention from the voice-search terms and respond accordingly with relevant answers.
  • We did not have much time to discuss problems with our current benchmarks and evaluation settings but you will find many relevant responses in our survey.

All of the problems above will require more research and new techniques in order to improve on them. NLP drives computer programs that translate text from one language to another, respond to spoken commands, and summarize large volumes of text rapidly—even in real time. There’s a good chance you’ve interacted with NLP in the form of voice-operated GPS systems, digital assistants, speech-to-text dictation software, customer service chatbots, and other consumer conveniences.

How to detect the language of entered text ?

Machine Language is used to train the bots which leads it to continuous learning for natural language processing (NLP) and natural language generation (NLG). Best features of both the approaches are ideal for resolving the real-world business problems. With the rise of generative AI chatbots, we’ve now entered a new era of natural language processing.

nlp problem

Since our embeddings are not represented as a vector with one dimension per word as in our previous models, it’s harder to see which words are the most relevant to our classification. While we still have access to the coefficients of our Logistic Regression, they relate to the 300 dimensions of our embeddings rather than the indices of words. After training the same model a third time (a Logistic Regression), we get an accuracy score of 77.7%, our best result yet! Although our metrics on our test set only increased slightly, we have much more confidence in the terms our model is using, and thus would feel more comfortable deploying it in a system that would interact with customers. In order to help our model focus more on meaningful words, we can use a TF-IDF score (Term Frequency, Inverse Document Frequency) on top of our Bag of Words model. We have labeled data and so we know which tweets belong to which categories.

What is Tokenization in Natural Language Processing (NLP)?

If you are interested in working on low-resource languages, consider attending the Deep Learning Indaba 2019, which takes place in Nairobi, Kenya from August 2019. For example, a restaurant would want its chatbot is programmed to answer for opening/closing hours, available reservations, phone numbers or extensions, etc. ”, the intent of the user is clearly to know the date of Halloween, with Halloween being the entity that is talked about. This ensures that users stay tuned into the conversation, that their queries are addressed effectively by the virtual assistant, and that they move on to the next stage of the marketing funnel.

Our dataset is a list of sentences, so in order for our algorithm to extract patterns from the data, we first need to find a way to represent it in a way that our algorithm can understand, i.e. as a list of numbers. Whether you are an established company or working to launch a new service, you can always leverage text data to validate, improve, and expand the functionalities of your product. The science of extracting meaning and learning from text data is an active topic of research called Natural Language Processing (NLP). Early books about NLP had a psychotherapeutic focus given that the early models were psychotherapists.

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Once the intent has been differentiated and interpreted, the chatbot then moves into the next stage – the decision-making engine. Based on previous conversations, this engine returns an answer to the query, which then follows the reverse process of getting converted back into user comprehensible text, and is displayed on the screens. When a chatbot is successfully able to break down these two parts in a query, the process of answering it begins. NLP engines are individually programmed for each intent and entity set that a business would need their chatbot to answer. Even though NLP chatbots today have become more or less independent, a good bot needs to have a module wherein the administrator can tap into the data it collected, and make adjustments if need be.

https://www.metadialog.com/

Whether or not an NLP chatbot is able to process user commands depends on how well it understands what is being asked of it. Employing machine learning or the more advanced deep learning algorithms impart comprehension capabilities to the chatbot. Unless this is done right, a chatbot will be cold and ineffective at addressing customer queries.

Step 2: Clean your data

However, what are they to learn from this that enhances their lives moving forward? Apart from the application of a technique, the client needs to understand the experience in a way that enhances their opportunity to understand, reflect, learn and do better in future. This is rarely offered as part of the ‘process’, and keeps NLP ‘victims’ in a one-down position to the practitioner. No blunt force technique is going to be accepted, enjoyed or valued by the person being treated by an object so the outcome desirable to the ‘practitioner’ is achieved.

In other words, our model’s most common error is inaccurately classifying disasters as irrelevant. If false positives represent a high cost for law enforcement, this could be a good bias for our classifier to have. A natural way to represent text for computers is to encode each character individually as a number (ASCII for example). In recent years, we’ve become familiar with chatbots and how beneficial they can be for business owners, employees, and customers alike. Despite what we’re used to and how their actions are fairly limited to scripted conversations and responses, the future of chatbots is life-changing, to say the least. The standard usage might not require more than quick answers and simple replies, but it’s important to know just how much chatbots are evolving and how Natural Language Processing (NLP) can improve their abilities.

If we create datasets and make them easily available, such as hosting them on openAFRICA, that would incentivize people and lower the barrier to entry. It is often sufficient to make available test data in multiple languages, as this will allow us to evaluate cross-lingual models and track progress. Another data source is the South African Centre for Digital Language Resources (SADiLaR), which provides resources for many of the languages spoken in South Africa. Embodied learning   Stephan argued that we should use the information in available structured sources and knowledge bases such as Wikidata. He noted that humans learn language through experience and interaction, by being embodied in an environment. One could argue that there exists a single learning algorithm that if used with an agent embedded in a sufficiently rich environment, with an appropriate reward structure, could learn NLU from the ground up.

nlp problem

Read more about https://www.metadialog.com/ here.


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