CasperSecurity
<?php
/*
* This file is part of the `nicolab/php-ftp-client` package.
*
* (c) Nicolas Tallefourtane <dev@nicolab.net>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Nicolas Tallefourtane http://nicolab.net
*/
namespace FtpClient;
use \Countable;
/**
* The FTP and SSL-FTP client for PHP.
*
* @method bool alloc() alloc(int $filesize, string &$result = null) Allocates space for a file to be uploaded
* @method bool cdup() cdup() Changes to the parent directory
* @method bool chdir() chdir(string $directory) Changes the current directory on a FTP server
* @method int chmod() chmod(int $mode, string $filename) Set permissions on a file via FTP
* @method bool delete() delete(string $path) Deletes a file on the FTP server
* @method bool exec() exec(string $command) Requests execution of a command on the FTP server
* @method bool fget() fget(resource $handle, string $remote_file, int $mode, int $resumepos = 0) Downloads a file from the FTP server and saves to an open file
* @method bool fput() fput(string $remote_file, resource $handle, int $mode, int $startpos = 0) Uploads from an open file to the FTP server
* @method mixed get_option() get_option(int $option) Retrieves various runtime behaviours of the current FTP stream
* @method bool get() get(string $local_file, string $remote_file, int $mode, int $resumepos = 0) Downloads a file from the FTP server
* @method int mdtm() mdtm(string $remote_file) Returns the last modified time of the given file
* @method int nb_continue() nb_continue() Continues retrieving/sending a file (non-blocking)
* @method int nb_fget() nb_fget(resource $handle, string $remote_file, int $mode, int $resumepos = 0) Retrieves a file from the FTP server and writes it to an open file (non-blocking)
* @method int nb_fput() nb_fput(string $remote_file, resource $handle, int $mode, int $startpos = 0) Stores a file from an open file to the FTP server (non-blocking)
* @method int nb_get() nb_get(string $local_file, string $remote_file, int $mode, int $resumepos = 0) Retrieves a file from the FTP server and writes it to a local file (non-blocking)
* @method int nb_put() nb_put(string $remote_file, string $local_file, int $mode, int $startpos = 0) Stores a file on the FTP server (non-blocking)
* @method bool pasv() pasv(bool $pasv) Turns passive mode on or off
* @method bool put() put(string $remote_file, string $local_file, int $mode, int $startpos = 0) Uploads a file to the FTP server
* @method string pwd() pwd() Returns the current directory name
* @method bool quit() quit() Closes an FTP connection
* @method array raw() raw(string $command) Sends an arbitrary command to an FTP server
* @method bool rename() rename(string $oldname, string $newname) Renames a file or a directory on the FTP server
* @method bool set_option() set_option(int $option, mixed $value) Set miscellaneous runtime FTP options
* @method bool site() site(string $command) Sends a SITE command to the server
* @method int size() size(string $remote_file) Returns the size of the given file
* @method string systype() systype() Returns the system type identifier of the remote FTP server
*
* @author Nicolas Tallefourtane <dev@nicolab.net>
*/
class FtpClient implements Countable
{
/**
* The connection with the server.
*
* @var resource
*/
protected $conn;
/**
* PHP FTP functions wrapper.
*
* @var FtpWrapper
*/
private $ftp;
/**
* Constructor.
*
* @param resource|null $connection
* @throws FtpException If FTP extension is not loaded.
*/
public function __construct($connection = null)
{
if (!extension_loaded('ftp')) {
throw new FtpException('FTP extension is not loaded!');
}
if ($connection) {
$this->conn = $connection;
}
$this->setWrapper(new FtpWrapper($this->conn));
}
/**
* Close the connection when the object is destroyed.
*/
public function __destruct()
{
if ($this->conn) {
$this->ftp->close();
}
}
/**
* Call an internal method or a FTP method handled by the wrapper.
*
* Wrap the FTP PHP functions to call as method of FtpClient object.
* The connection is automaticaly passed to the FTP PHP functions.
*
* @param string $method
* @param array $arguments
* @return mixed
* @throws FtpException When the function is not valid
*/
public function __call($method, array $arguments)
{
return $this->ftp->__call($method, $arguments);
}
/**
* Overwrites the PHP limit
*
* @param string|null $memory The memory limit, if null is not modified
* @param int $time_limit The max execution time, unlimited by default
* @param bool $ignore_user_abort Ignore user abort, true by default
* @return FtpClient
*/
public function setPhpLimit($memory = null, $time_limit = 0, $ignore_user_abort = true)
{
if (null !== $memory) {
ini_set('memory_limit', $memory);
}
ignore_user_abort(true);
set_time_limit($time_limit);
return $this;
}
/**
* Get the help information of the remote FTP server.
*
* @return array
*/
public function help()
{
return $this->ftp->raw('help');
}
/**
* Open a FTP connection.
*
* @param string $host
* @param bool $ssl
* @param int $port
* @param int $timeout
*
* @return FTPClient
* @throws FtpException If unable to connect
*/
public function connect($host, $ssl = false, $port = 21, $timeout = 90)
{
if ($ssl) {
$this->conn = @$this->ftp->ssl_connect($host, $port, $timeout);
} else {
$this->conn = @$this->ftp->connect($host, $port, $timeout);
}
if (!$this->conn) {
throw new FtpException('Unable to connect');
}
return $this;
}
/**
* Closes the current FTP connection.
*
* @return bool
*/
public function close()
{
if ($this->conn) {
$this->ftp->close();
$this->conn = null;
}
}
/**
* Get the connection with the server.
*
* @return resource
*/
public function getConnection()
{
return $this->conn;
}
/**
* Get the wrapper.
*
* @return FtpWrapper
*/
public function getWrapper()
{
return $this->ftp;
}
/**
* Logs in to an FTP connection.
*
* @param string $username
* @param string $password
*
* @return FtpClient
* @throws FtpException If the login is incorrect
*/
public function login($username = 'anonymous', $password = '')
{
$result = $this->ftp->login($username, $password);
if ($result === false) {
throw new FtpException('Login incorrect');
}
return $this;
}
/**
* Returns the last modified time of the given file.
* Return -1 on error
*
* @param string $remoteFile
* @param string|null $format
*
* @return int
*/
public function modifiedTime($remoteFile, $format = null)
{
$time = $this->ftp->mdtm($remoteFile);
if ($time !== -1 && $format !== null) {
return date($format, $time);
}
return $time;
}
/**
* Changes to the parent directory.
*
* @throws FtpException
* @return FtpClient
*/
public function up()
{
$result = @$this->ftp->cdup();
if ($result === false) {
throw new FtpException('Unable to get parent folder');
}
return $this;
}
/**
* Returns a list of files in the given directory.
*
* @param string $directory The directory, by default is "." the current directory
* @param bool $recursive
* @param callable $filter A callable to filter the result, by default is asort() PHP function.
* The result is passed in array argument,
* must take the argument by reference !
* The callable should proceed with the reference array
* because is the behavior of several PHP sorting
* functions (by reference ensure directly the compatibility
* with all PHP sorting functions).
*
* @return array
* @throws FtpException If unable to list the directory
*/
public function nlist($directory = '.', $recursive = false, $filter = 'sort')
{
if (!$this->isDir($directory)) {
throw new FtpException('"'.$directory.'" is not a directory');
}
$files = $this->ftp->nlist($directory);
if ($files === false) {
throw new FtpException('Unable to list directory');
}
$result = array();
$dir_len = strlen($directory);
// if it's the current
if (false !== ($kdot = array_search('.', $files))) {
unset($files[$kdot]);
}
// if it's the parent
if(false !== ($kdot = array_search('..', $files))) {
unset($files[$kdot]);
}
if (!$recursive) {
foreach ($files as $file) {
$result[] = $directory.'/'.$file;
}
// working with the reference (behavior of several PHP sorting functions)
$filter($result);
return $result;
}
// utils for recursion
$flatten = function (array $arr) use (&$flatten) {
$flat = [];
foreach ($arr as $k => $v) {
if (is_array($v)) {
$flat = array_merge($flat, $flatten($v));
} else {
$flat[] = $v;
}
}
return $flat;
};
foreach ($files as $file) {
$file = $directory.'/'.$file;
// if contains the root path (behavior of the recursivity)
if (0 === strpos($file, $directory, $dir_len)) {
$file = substr($file, $dir_len);
}
if ($this->isDir($file)) {
$result[] = $file;
$items = $flatten($this->nlist($file, true, $filter));
foreach ($items as $item) {
$result[] = $item;
}
} else {
$result[] = $file;
}
}
$result = array_unique($result);
$filter($result);
return $result;
}
/**
* Creates a directory.
*
* @see FtpClient::rmdir()
* @see FtpClient::remove()
* @see FtpClient::put()
* @see FtpClient::putAll()
*
* @param string $directory The directory
* @param bool $recursive
* @return array
*/
public function mkdir($directory, $recursive = false)
{
if (!$recursive or $this->isDir($directory)) {
return $this->ftp->mkdir($directory);
}
$result = false;
$pwd = $this->ftp->pwd();
$parts = explode('/', $directory);
foreach ($parts as $part) {
if (!@$this->ftp->chdir($part)) {
$result = $this->ftp->mkdir($part);
$this->ftp->chdir($part);
}
}
$this->ftp->chdir($pwd);
return $result;
}
/**
* Remove a directory.
*
* @see FtpClient::mkdir()
* @see FtpClient::cleanDir()
* @see FtpClient::remove()
* @see FtpClient::delete()
* @param string $directory
* @param bool $recursive Forces deletion if the directory is not empty
* @return bool
* @throws FtpException If unable to list the directory to remove
*/
public function rmdir($directory, $recursive = true)
{
if ($recursive) {
$files = $this->nlist($directory, false, 'rsort');
// remove children
foreach ($files as $file) {
$this->remove($file, true);
}
}
// remove the directory
return $this->ftp->rmdir($directory);
}
/**
* Empty directory.
*
* @see FtpClient::remove()
* @see FtpClient::delete()
* @see FtpClient::rmdir()
*
* @param string $directory
* @return bool
*/
public function cleanDir($directory)
{
if(!$files = $this->nlist($directory)) {
return $this->isEmpty($directory);
}
// remove children
foreach ($files as $file) {
$this->remove($file, true);
}
return $this->isEmpty($directory);
}
/**
* Remove a file or a directory.
*
* @see FtpClient::rmdir()
* @see FtpClient::cleanDir()
* @see FtpClient::delete()
* @param string $path The path of the file or directory to remove
* @param bool $recursive Is effective only if $path is a directory, {@see FtpClient::rmdir()}
* @return bool
*/
public function remove($path, $recursive = false)
{
try {
if (@$this->ftp->delete($path)
or ($this->isDir($path) and @$this->rmdir($path, $recursive))) {
return true;
}
return false;
} catch (\Exception $e) {
return false;
}
}
/**
* Check if a directory exist.
*
* @param string $directory
* @return bool
* @throws FtpException
*/
public function isDir($directory)
{
$pwd = $this->ftp->pwd();
if ($pwd === false) {
throw new FtpException('Unable to resolve the current directory');
}
if (@$this->ftp->chdir($directory)) {
$this->ftp->chdir($pwd);
return true;
}
$this->ftp->chdir($pwd);
return false;
}
/**
* Check if a directory is empty.
*
* @param string $directory
* @return bool
*/
public function isEmpty($directory)
{
return $this->count($directory, null, false) === 0 ? true : false;
}
/**
* Scan a directory and returns the details of each item.
*
* @see FtpClient::nlist()
* @see FtpClient::rawlist()
* @see FtpClient::parseRawList()
* @see FtpClient::dirSize()
* @param string $directory
* @param bool $recursive
* @return array
*/
public function scanDir($directory = '.', $recursive = false)
{
return $this->parseRawList($this->rawlist($directory, $recursive));
}
/**
* Returns the total size of the given directory in bytes.
*
* @param string $directory The directory, by default is the current directory.
* @param bool $recursive true by default
* @return int The size in bytes.
*/
public function dirSize($directory = '.', $recursive = true)
{
$items = $this->scanDir($directory, $recursive);
$size = 0;
foreach ($items as $item) {
$size += (int) $item['size'];
}
return $size;
}
/**
* Count the items (file, directory, link, unknown).
*
* @param string $directory The directory, by default is the current directory.
* @param string|null $type The type of item to count (file, directory, link, unknown)
* @param bool $recursive true by default
* @return int
*/
public function count($directory = '.', $type = null, $recursive = true)
{
$items = (null === $type ? $this->nlist($directory, $recursive)
: $this->scanDir($directory, $recursive));
$count = 0;
foreach ($items as $item) {
if (null === $type or $item['type'] == $type) {
$count++;
}
}
return $count;
}
/**
* Uploads a file to the server from a string.
*
* @param string $remote_file
* @param string $content
* @return FtpClient
* @throws FtpException When the transfer fails
*/
public function putFromString($remote_file, $content)
{
$handle = fopen('php://temp', 'w');
fwrite($handle, $content);
rewind($handle);
if ($this->ftp->fput($remote_file, $handle, FTP_BINARY)) {
return $this;
}
throw new FtpException('Unable to put the file "'.$remote_file.'"');
}
/**
* Uploads a file to the server.
*
* @param string $local_file
* @return FtpClient
* @throws FtpException When the transfer fails
*/
public function putFromPath($local_file)
{
$remote_file = basename($local_file);
$handle = fopen($local_file, 'r');
if ($this->ftp->fput($remote_file, $handle, FTP_BINARY)) {
rewind($handle);
return $this;
}
throw new FtpException(
'Unable to put the remote file from the local file "'.$local_file.'"'
);
}
/**
* Upload files.
*
* @param string $source_directory
* @param string $target_directory
* @param int $mode
* @return FtpClient
*/
public function putAll($source_directory, $target_directory, $mode = FTP_BINARY)
{
$d = dir($source_directory);
// do this for each file in the directory
while ($file = $d->read()) {
// to prevent an infinite loop
if ($file != "." && $file != "..") {
// do the following if it is a directory
if (is_dir($source_directory.'/'.$file)) {
if (!$this->isDir($target_directory.'/'.$file)) {
// create directories that do not yet exist
$this->ftp->mkdir($target_directory.'/'.$file);
}
// recursive part
$this->putAll(
$source_directory.'/'.$file, $target_directory.'/'.$file,
$mode
);
} else {
// put the files
$this->ftp->put(
$target_directory.'/'.$file, $source_directory.'/'.$file,
$mode
);
}
}
}
return $this;
}
/**
* Returns a detailed list of files in the given directory.
*
* @see FtpClient::nlist()
* @see FtpClient::scanDir()
* @see FtpClient::dirSize()
* @param string $directory The directory, by default is the current directory
* @param bool $recursive
* @return array
* @throws FtpException
*/
public function rawlist($directory = '.', $recursive = false)
{
if (!$this->isDir($directory)) {
throw new FtpException('"'.$directory.'" is not a directory.');
}
$list = $this->ftp->rawlist($directory);
$items = array();
if (!$list) {
return $items;
}
if (false == $recursive) {
foreach ($list as $path => $item) {
$chunks = preg_split("/\s+/", $item);
// if not "name"
if (empty($chunks[8]) || $chunks[8] == '.' || $chunks[8] == '..') {
continue;
}
$path = $directory.'/'.$chunks[8];
if (isset($chunks[9])) {
$nbChunks = count($chunks);
for ($i = 9; $i < $nbChunks; $i++) {
$path .= ' '.$chunks[$i];
}
}
if (substr($path, 0, 2) == './') {
$path = substr($path, 2);
}
$items[ $this->rawToType($item).'#'.$path ] = $item;
}
return $items;
}
$path = '';
foreach ($list as $item) {
$len = strlen($item);
if (!$len
// "."
|| ($item[$len-1] == '.' && $item[$len-2] == ' '
// ".."
or $item[$len-1] == '.' && $item[$len-2] == '.' && $item[$len-3] == ' ')
){
continue;
}
$chunks = preg_split("/\s+/", $item);
// if not "name"
if (empty($chunks[8]) || $chunks[8] == '.' || $chunks[8] == '..') {
continue;
}
$path = $directory.'/'.$chunks[8];
if (isset($chunks[9])) {
$nbChunks = count($chunks);
for ($i = 9; $i < $nbChunks; $i++) {
$path .= ' '.$chunks[$i];
}
}
if (substr($path, 0, 2) == './') {
$path = substr($path, 2);
}
$items[$this->rawToType($item).'#'.$path] = $item;
if ($item[0] == 'd') {
$sublist = $this->rawlist($path, true);
foreach ($sublist as $subpath => $subitem) {
$items[$subpath] = $subitem;
}
}
}
return $items;
}
/**
* Parse raw list.
*
* @see FtpClient::rawlist()
* @see FtpClient::scanDir()
* @see FtpClient::dirSize()
* @param array $rawlist
* @return array
*/
public function parseRawList(array $rawlist)
{
$items = array();
$path = '';
foreach ($rawlist as $key => $child) {
$chunks = preg_split("/\s+/", $child);
if (isset($chunks[8]) && ($chunks[8] == '.' or $chunks[8] == '..')) {
continue;
}
if (count($chunks) === 1) {
$len = strlen($chunks[0]);
if ($len && $chunks[0][$len-1] == ':') {
$path = substr($chunks[0], 0, -1);
}
continue;
}
$item = [
'permissions' => $chunks[0],
'number' => $chunks[1],
'owner' => $chunks[2],
'group' => $chunks[3],
'size' => $chunks[4],
'month' => $chunks[5],
'day' => $chunks[6],
'time' => $chunks[7],
'name' => $chunks[8],
'type' => $this->rawToType($chunks[0]),
];
unset($chunks[0]);
unset($chunks[1]);
unset($chunks[2]);
unset($chunks[3]);
unset($chunks[4]);
unset($chunks[5]);
unset($chunks[6]);
unset($chunks[7]);
$item['name'] = implode(' ', $chunks);
if ($item['type'] == 'link') {
$item['target'] = $chunks[10]; // 9 is "->"
}
// if the key is not the path, behavior of ftp_rawlist() PHP function
if (is_int($key) || false === strpos($key, $item['name'])) {
array_splice($chunks, 0, 8);
$key = $item['type'].'#'
.($path ? $path.'/' : '')
.implode(" ", $chunks);
if ($item['type'] == 'link') {
// get the first part of 'link#the-link.ext -> /path/of/the/source.ext'
$exp = explode(' ->', $key);
$key = rtrim($exp[0]);
}
$items[$key] = $item;
} else {
// the key is the path, behavior of FtpClient::rawlist() method()
$items[$key] = $item;
}
}
return $items;
}
/**
* Convert raw info (drwx---r-x ...) to type (file, directory, link, unknown).
* Only the first char is used for resolving.
*
* @param string $permission Example : drwx---r-x
*
* @return string The file type (file, directory, link, unknown)
* @throws FtpException
*/
public function rawToType($permission)
{
if (!is_string($permission)) {
throw new FtpException('The "$permission" argument must be a string, "'
.gettype($permission).'" given.');
}
if (empty($permission[0])) {
return 'unknown';
}
switch ($permission[0]) {
case '-':
return 'file';
case 'd':
return 'directory';
case 'l':
return 'link';
default:
return 'unknown';
}
}
/**
* Set the wrapper which forward the PHP FTP functions to use in FtpClient instance.
*
* @param FtpWrapper $wrapper
* @return FtpClient
*/
protected function setWrapper(FtpWrapper $wrapper)
{
$this->ftp = $wrapper;
return $this;
}
}