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Editing: elFinderVolumeSFTPphpseclib.class.php
<?php /** * Simple elFinder driver for SFTP using phpseclib 1 * * @author Dmitry (dio) Levashov * @author Cem (discofever), sitecode * @reference http://phpseclib.sourceforge.net/sftp/2.0/examples.html **/ class elFinderVolumeSFTPphpseclib extends elFinderVolumeFTP { /** * Simple hack that could break for quick compatibility with phpseclib version 1-3 * Same value substitue for reference NET_SFTP_LOCAL_FILE and SFTP::SOURCE_LOCAL_FILE */ const NET_SFTP_LOCAL_FILE = 1; /** * Constructor * Extend options with required fields * * @author Dmitry (dio) Levashov * @author Cem (DiscoFever) */ public function __construct() { $opts = array( 'host' => 'localhost', 'user' => '', 'pass' => '', 'port' => 22, 'path' => '/', 'timeout' => 20, 'owner' => true, 'tmbPath' => '', 'tmpPath' => '', 'separator' => '/', 'phpseclibDir' => '../phpseclib/', 'connectCallback' => null, //provide your own already instantiated phpseclib $Sftp object returned by this callback //'connectCallback'=> function($options) { // //load and instantiate phpseclib $sftp // return $sftp; // }, 'checkSubfolders' => -1, 'dirMode' => 0755, 'fileMode' => 0644, 'rootCssClass' => 'elfinder-navbar-root-ftp', ); $this->options = array_merge($this->options, $opts); $this->options['mimeDetect'] = 'internal'; } /** * Prepare * Call from elFinder::netmout() before volume->mount() * * @param $options * * @return array volume root options * @author Naoki Sawada */ public function netmountPrepare($options) { $options['statOwner'] = true; $options['allowChmodReadOnly'] = true; $options['acceptedName'] = '#^[^/\\?*:|"<>]*[^./\\?*:|"<>]$#'; return $options; } /*********************************************************************/ /* INIT AND CONFIGURE */ /*********************************************************************/ /** * Prepare SFTP connection * Connect to remote server and check if credentials are correct, if so, store the connection * * @return bool * @author Dmitry (dio) Levashov * @author Cem (DiscoFever) **/ protected function init() { if (!$this->options['connectCallback']) { if (!$this->options['host'] || !$this->options['port']) { return $this->setError('Required options undefined.'); } if (!$this->options['path']) { $this->options['path'] = '/'; } // make net mount key $this->netMountKey = md5(join('-', array('sftpphpseclib', $this->options['host'], $this->options['port'], $this->options['path'], $this->options['user']))); set_include_path(get_include_path() . PATH_SEPARATOR . getcwd().'/'.$this->options['phpseclibDir']); include_once('Net/SFTP.php'); if (!class_exists('Net_SFTP')) { return $this->setError('SFTP extension not loaded. Install phpseclib version 1: http://phpseclib.sourceforge.net/ Set option "phpseclibDir" accordingly.'); } // remove protocol from host $scheme = parse_url($this->options['host'], PHP_URL_SCHEME); if ($scheme) { $this->options['host'] = substr($this->options['host'], strlen($scheme) + 3); } } else { // make net mount key $this->netMountKey = md5(join('-', array('sftpphpseclib', $this->options['path']))); } // normalize root path $this->root = $this->options['path'] = $this->_normpath($this->options['path']); if (empty($this->options['alias'])) { $this->options['alias'] = $this->options['user'] . '@' . $this->options['host']; if (!empty($this->options['netkey'])) { elFinder::$instance->updateNetVolumeOption($this->options['netkey'], 'alias', $this->options['alias']); } } $this->rootName = $this->options['alias']; $this->options['separator'] = '/'; if (is_null($this->options['syncChkAsTs'])) { $this->options['syncChkAsTs'] = true; } return $this->needOnline? $this->connect() : true; } /** * Configure after successfull mount. * * @return void * @throws elFinderAbortException * @author Dmitry (dio) Levashov */ protected function configure() { parent::configure(); if (!$this->tmp) { $this->disabled[] = 'mkfile'; $this->disabled[] = 'paste'; $this->disabled[] = 'upload'; $this->disabled[] = 'edit'; //$this->disabled[] = 'archive'; //$this->disabled[] = 'extract'; } $this->disabled[] = 'archive'; $this->disabled[] = 'extract'; } /** * Connect to sftp server * * @return bool * @author sitecode **/ protected function connect() { //use ca if ($this->options['connectCallback']) { $this->connect = $this->options['connectCallback']($this->options); if (!$this->connect || !$this->connect->isConnected()) { return $this->setError('Unable to connect successfully'); } return true; } try{ $host = $this->options['host'] . ($this->options['port'] != 22 ? ':' . $this->options['port'] : ''); $this->connect = new Net_SFTP($host); //TODO check fingerprint before login, fail if no match to last time if (!$this->connect->login($this->options['user'], $this->options['pass'])) { return $this->setError('Unable to connect to SFTP server ' . $host); } } catch (Exception $e) { return $this->setError('Error while connecting to SFTP server ' . $host . ': ' . $e->getMessage()); } if (!$this->connect->chdir($this->root) /*|| $this->root != $this->connect->pwd()*/) { //$this->umount(); return $this->setError('Unable to open root folder.'); } return true; } /** * Call rawlist * * @param string $path * * @return array */ protected function ftpRawList($path) { return $this->connect->rawlist($path ?: '.') ?: []; } /*********************************************************************/ /* FS API */ /*********************************************************************/ /** * Close opened connection * * @return void * @author Dmitry (dio) Levashov **/ public function umount() { $this->connect && $this->connect->disconnect(); } /** * Parse line from rawlist() output and return file stat (array) * * @param array $info from rawlist() output * @param $base * @param bool $nameOnly * * @return array * @author Dmitry Levashov */ protected function parseRaw($info, $base, $nameOnly = false) { $stat = array(); if ($info['filename'] == '.' || $info['filename'] == '..') { return false; } $name = $info['filename']; //for compatability with phpseclib version 2/3 if (empty($info['permissions'])) { $info['permissions'] = $info['mode']; } if ($info['type'] === 3) { // check recursive processing if ($this->cacheDirTarget && $this->_joinPath($base, $name) !== $this->cacheDirTarget) { return array(); } if (!$nameOnly) { $target = $this->connect->readlink($name); if (substr($target, 0, 1) !== $this->separator) { $target = $this->getFullPath($target, $base); } $target = $this->_normpath($target); $stat['name'] = $name; $stat['target'] = $target; return $stat; } } if ($nameOnly) { return array('name' => $name); } $stat['ts'] = $info['mtime']; if ($this->options['statOwner']) { $stat['owner'] = $info['uid']; $stat['group'] = $info['gid']; $stat['perm'] = $info['permissions']; $stat['isowner'] = isset($stat['owner']) ? ($this->options['owner'] ? true : ($stat['owner'] == $this->options['user'])) : true; } $owner_computed = isset($stat['isowner']) ? $stat['isowner'] : $this->options['owner']; $perm = $this->parsePermissions($info['permissions'], $owner_computed); $stat['name'] = $name; if ($info['type'] === NET_SFTP_TYPE_DIRECTORY) { $stat['mime'] = 'directory'; $stat['size'] = 0; } elseif ($info['type'] === NET_SFTP_TYPE_SYMLINK) { $stat['mime'] = 'symlink'; $stat['size'] = 0; } else { $stat['mime'] = $this->mimetype($stat['name'], true); $stat['size'] = $info['size']; } $stat['read'] = $perm['read']; $stat['write'] = $perm['write']; return $stat; } /** * Parse permissions string. Return array(read => true/false, write => true/false) * * @param int $perm * The isowner parameter is computed by the caller. * If the owner parameter in the options is true, the user is the actual owner of all objects even if the user used in the ftp Login * is different from the file owner id. * If the owner parameter is false to understand if the user is the file owner we compare the ftp user with the file owner id. * @param Boolean $isowner . Tell if the current user is the owner of the object. * * @return array * @author Dmitry (dio) Levashov * @author sitecode */ protected function parsePermissions($permissions, $isowner = true) { $permissions = decoct($permissions); $perm = $isowner ? decbin($permissions[-3]) : decbin($permissions[-1]); return array( 'read' => $perm[-3], 'write' => $perm[-2] ); } /** * Cache dir contents * * @param string $path dir path * * @return void * @author Dmitry Levashov, sitecode **/ protected function cacheDir($path) { $this->dirsCache[$path] = array(); $hasDir = false; $list = array(); $encPath = $this->convEncIn($path); foreach ($this->ftpRawList($encPath) as $info) { if (($stat = $this->parseRaw($info, $encPath))) { $list[] = $stat; } } $list = $this->convEncOut($list); $prefix = ($path === $this->separator) ? $this->separator : $path . $this->separator; $targets = array(); foreach ($list as $stat) { $p = $prefix . $stat['name']; if (isset($stat['target'])) { // stat later $targets[$stat['name']] = $stat['target']; } else { $stat = $this->updateCache($p, $stat); if (empty($stat['hidden'])) { if (!$hasDir && $stat['mime'] === 'directory') { $hasDir = true; } elseif (!$hasDir && $stat['mime'] === 'symlink') { $hasDir = true; } $this->dirsCache[$path][] = $p; } } } // stat link targets foreach ($targets as $name => $target) { $stat = array(); $stat['name'] = $name; $p = $prefix . $name; $cacheDirTarget = $this->cacheDirTarget; $this->cacheDirTarget = $this->convEncIn($target, true); if ($tstat = $this->stat($target)) { $stat['size'] = $tstat['size']; $stat['alias'] = $target; $stat['thash'] = $tstat['hash']; $stat['mime'] = $tstat['mime']; $stat['read'] = $tstat['read']; $stat['write'] = $tstat['write']; if (isset($tstat['ts'])) { $stat['ts'] = $tstat['ts']; } if (isset($tstat['owner'])) { $stat['owner'] = $tstat['owner']; } if (isset($tstat['group'])) { $stat['group'] = $tstat['group']; } if (isset($tstat['perm'])) { $stat['perm'] = $tstat['perm']; } if (isset($tstat['isowner'])) { $stat['isowner'] = $tstat['isowner']; } } else { $stat['mime'] = 'symlink-broken'; $stat['read'] = false; $stat['write'] = false; $stat['size'] = 0; } $this->cacheDirTarget = $cacheDirTarget; $stat = $this->updateCache($p, $stat); if (empty($stat['hidden'])) { if (!$hasDir && $stat['mime'] === 'directory') { $hasDir = true; } $this->dirsCache[$path][] = $p; } } if (isset($this->sessionCache['subdirs'])) { $this->sessionCache['subdirs'][$path] = $hasDir; } } /***************** file stat ********************/ /** * Return stat for given path. * Stat contains following fields: * - (int) size file size in b. required * - (int) ts file modification time in unix time. required * - (string) mime mimetype. required for folders, others - optionally * - (bool) read read permissions. required * - (bool) write write permissions. required * - (bool) locked is object locked. optionally * - (bool) hidden is object hidden. optionally * - (string) alias for symlinks - link target path relative to root path. optionally * - (string) target for symlinks - link target path. optionally * If file does not exists - returns empty array or false. * * @param string $path file path * * @return array|false * @author Dmitry (dio) Levashov **/ protected function _stat($path) { $outPath = $this->convEncOut($path); if (isset($this->cache[$outPath])) { return $this->convEncIn($this->cache[$outPath]); } else { $this->convEncIn(); } if ($path === $this->root) { $res = array( 'name' => $this->root, 'mime' => 'directory', 'dirs' => -1 ); if ($this->needOnline && (($this->ARGS['cmd'] === 'open' && $this->ARGS['target'] === $this->encode($this->root)) || $this->isMyReload())) { $check = array( 'ts' => true, 'dirs' => true, ); $ts = 0; foreach ($this->ftpRawList($path) as $info) { if ($info['filename'] === '.') { $info['filename'] = 'root'; if ($stat = $this->parseRaw($info, $path)) { unset($stat['name']); $res = array_merge($res, $stat); if ($res['ts']) { $ts = 0; unset($check['ts']); } } } if ($check && ($stat = $this->parseRaw($info, $path))) { if (isset($stat['ts']) && !empty($stat['ts'])) { $ts = max($ts, $stat['ts']); } if (isset($stat['dirs']) && $stat['mime'] === 'directory') { $res['dirs'] = 1; unset($stat['dirs']); } if (!$check) { break; } } } if ($ts) { $res['ts'] = $ts; } $this->cache[$outPath] = $res; } return $res; } $pPath = $this->_dirname($path); if ($this->_inPath($pPath, $this->root)) { $outPPpath = $this->convEncOut($pPath); if (!isset($this->dirsCache[$outPPpath])) { $parentSubdirs = null; if (isset($this->sessionCache['subdirs']) && isset($this->sessionCache['subdirs'][$outPPpath])) { $parentSubdirs = $this->sessionCache['subdirs'][$outPPpath]; } $this->cacheDir($outPPpath); if ($parentSubdirs) { $this->sessionCache['subdirs'][$outPPpath] = $parentSubdirs; } } } $stat = $this->convEncIn(isset($this->cache[$outPath]) ? $this->cache[$outPath] : array()); if (!$this->mounted) { // dispose incomplete cache made by calling `stat` by 'startPath' option $this->cache = array(); } return $stat; } /** * Return true if path is dir and has at least one childs directory * * @param string $path dir path * * @return bool * @author Dmitry (dio) Levashov, sitecode **/ protected function _subdirs($path) { foreach ($this->ftpRawList($path) as $info) { $name = $info['filename']; if ($name && $name !== '.' && $name !== '..' && $info['type'] == NET_SFTP_TYPE_DIRECTORY) { return true; } if ($name && $name !== '.' && $name !== '..' && $info['type'] == NET_SFTP_TYPE_SYMLINK) { //return true; } } return false; } /******************** file/dir content *********************/ /** * Open file and return file pointer * * @param string $path file path * @param string $mode * * @return false|resource * @throws elFinderAbortException * @internal param bool $write open file for writing * @author Dmitry (dio) Levashov */ protected function _fopen($path, $mode = 'rb') { if ($this->tmp) { $local = $this->getTempFile($path); $this->connect->get($path, $local); return @fopen($local, $mode); } return false; } /** * Close opened file * * @param resource $fp file pointer * @param string $path * * @return void * @author Dmitry (dio) Levashov */ protected function _fclose($fp, $path = '') { is_resource($fp) && fclose($fp); if ($path) { unlink($this->getTempFile($path)); } } /******************** file/dir manipulations *************************/ /** * Create dir and return created dir path or false on failed * * @param string $path parent dir path * @param string $name new directory name * * @return string|bool * @author Dmitry (dio) Levashov **/ protected function _mkdir($path, $name) { $path = $this->_joinPath($path, $this->_basename($name)); if ($this->connect->mkdir($path) === false) { return false; } $this->options['dirMode'] && $this->connect->chmod($this->options['dirMode'], $path); return $path; } /** * Create file and return it's path or false on failed * * @param string $path parent dir path * @param string $name new file name * * @return string|bool * @author sitecode **/ protected function _mkfile($path, $name) { $path = $this->_joinPath($path, $this->_basename($name)); return $this->connect->put($path, '') ? $path : false; /* if ($this->tmp) { $path = $this->_joinPath($path, $name); $local = $this->getTempFile(); $res = touch($local) && $this->connect->put($path, $local, self::NET_SFTP_LOCAL_FILE); unlink($local); return $res ? $path : false; } return false; */ } /** * Copy file into another file * * @param string $source source file path * @param string $targetDir target directory path * @param string $name new file name * * @return bool * @author Dmitry (dio) Levashov, sitecode **/ protected function _copy($source, $targetDir, $name) { $res = false; $target = $this->_joinPath($targetDir, $this->_basename($name)); if ($this->tmp) { $local = $this->getTempFile(); if ($this->connect->get($source, $local) && $this->connect->put($target, $local, self::NET_SFTP_LOCAL_FILE)) { $res = true; } unlink($local); } else { //not memory efficient $res = $this->_filePutContents($target, $this->_getContents($source)); } return $res; } /** * Move file into another parent dir. * Return new file path or false. * * @param string $source source file path * @param $targetDir * @param string $name file name * * @return bool|string * @internal param string $target target dir path * @author Dmitry (dio) Levashov */ protected function _move($source, $targetDir, $name) { $target = $this->_joinPath($targetDir, $this->_basename($name)); return $this->connect->rename($source, $target) ? $target : false; } /** * Remove file * * @param string $path file path * * @return bool * @author Dmitry (dio) Levashov **/ protected function _unlink($path) { return $this->connect->delete($path, false); } /** * Remove dir * * @param string $path dir path * * @return bool * @author Dmitry (dio) Levashov **/ protected function _rmdir($path) { return $this->connect->delete($path); } /** * Create new file and write into it from file pointer. * Return new file path or false on error. * * @param resource $fp file pointer * @param string $dir target dir path * @param string $name file name * @param array $stat file stat (required by some virtual fs) * * @return bool|string * @author Dmitry (dio) Levashov **/ protected function _save($fp, $dir, $name, $stat) { //TODO optionally encrypt $fp before uploading if mime is not already encrypted type $path = $this->_joinPath($dir, $this->_basename($name)); return $this->connect->put($path, $fp) ? $path : false; } /** * Get file contents * * @param string $path file path * * @return string|false * @throws elFinderAbortException * @author Dmitry (dio) Levashov */ protected function _getContents($path) { return $this->connect->get($path); } /** * Write a string to a file * * @param string $path file path * @param string $content new file content * * @return bool * @author Dmitry (dio) Levashov **/ protected function _filePutContents($path, $content) { return $this->connect->put($path, $content); } /** * chmod availability * * @param string $path * @param string $mode * * @return bool */ protected function _chmod($path, $mode) { $modeOct = is_string($mode) ? octdec($mode) : octdec(sprintf("%04o", $mode)); return $this->connect->chmod($modeOct, $path); } /** * Extract files from archive * * @param string $path archive path * @param array $arc archiver command and arguments (same as in $this->archivers) * * @return true * @throws elFinderAbortException * @author Dmitry (dio) Levashov, * @author Alexey Sukhotin */ protected function _extract($path, $arc) { return false; //TODO } /** * Create archive and return its path * * @param string $dir target dir * @param array $files files names list * @param string $name archive name * @param array $arc archiver options * * @return string|bool * @throws elFinderAbortException * @author Dmitry (dio) Levashov, * @author Alexey Sukhotin */ protected function _archive($dir, $files, $name, $arc) { return false; //TODO } /** * Gets an array of absolute remote SFTP paths of files and * folders in $remote_directory omitting symbolic links. * * @param $remote_directory string remote SFTP path to scan for file and folders recursively * @param $targets array Array of target item. `null` is to get all of items * * @return array of elements each of which is an array of two elements: * <ul> * <li>$item['path'] - absolute remote SFTP path</li> * <li>$item['type'] - either 'f' for file or 'd' for directory</li> * </ul> */ protected function ftp_scan_dir($remote_directory, $targets = null) { $buff = $this->ftpRawList($remote_directory); $items = array(); if ($targets && is_array($targets)) { $targets = array_flip($targets); } else { $targets = false; } foreach ($buff as $info) { $name = $info['filename']; if ($name !== '.' && $name !== '..' && (!$targets || isset($targets[$name]))) { switch ($info['type']) { case NET_SFTP_TYPE_SYMLINK : //omit symbolic links case NET_SFTP_TYPE_DIRECTORY : $remote_file_path = $this->_joinPath($remote_directory, $name); $item = array(); $item['path'] = $remote_file_path; $item['type'] = 'd'; // normal file $items[] = $item; $items = array_merge($items, $this->ftp_scan_dir($remote_file_path)); break; default: $remote_file_path = $this->_joinPath($remote_directory, $name); $item = array(); $item['path'] = $remote_file_path; $item['type'] = 'f'; // normal file $items[] = $item; } } } return $items; } } // END class
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