CasperSecurity
<?php
namespace League\Flysystem\Adapter;
use League\Flysystem\Adapter\Polyfill\StreamedCopyTrait;
use League\Flysystem\AdapterInterface;
use League\Flysystem\Config;
use League\Flysystem\ConnectionErrorException;
use League\Flysystem\ConnectionRuntimeException;
use League\Flysystem\InvalidRootException;
use League\Flysystem\Util;
use League\Flysystem\Util\MimeType;
class Ftp extends AbstractFtpAdapter
{
use StreamedCopyTrait;
/**
* @var int
*/
protected $transferMode = FTP_BINARY;
/**
* @var null|bool
*/
protected $ignorePassiveAddress = null;
/**
* @var bool
*/
protected $recurseManually = false;
/**
* @var bool
*/
protected $utf8 = false;
/**
* @var array
*/
protected $configurable = [
'host',
'port',
'username',
'password',
'ssl',
'timeout',
'root',
'permPrivate',
'permPublic',
'passive',
'transferMode',
'systemType',
'ignorePassiveAddress',
'recurseManually',
'utf8',
'enableTimestampsOnUnixListings',
];
/**
* @var bool
*/
protected $isPureFtpd;
/**
* Set the transfer mode.
*
* @param int $mode
*
* @return $this
*/
public function setTransferMode($mode)
{
$this->transferMode = $mode;
return $this;
}
/**
* Set if Ssl is enabled.
*
* @param bool $ssl
*
* @return $this
*/
public function setSsl($ssl)
{
$this->ssl = (bool) $ssl;
return $this;
}
/**
* Set if passive mode should be used.
*
* @param bool $passive
*/
public function setPassive($passive = true)
{
$this->passive = $passive;
}
/**
* @param bool $ignorePassiveAddress
*/
public function setIgnorePassiveAddress($ignorePassiveAddress)
{
$this->ignorePassiveAddress = $ignorePassiveAddress;
}
/**
* @param bool $recurseManually
*/
public function setRecurseManually($recurseManually)
{
$this->recurseManually = $recurseManually;
}
/**
* @param bool $utf8
*/
public function setUtf8($utf8)
{
$this->utf8 = (bool) $utf8;
}
/**
* Connect to the FTP server.
*/
public function connect()
{
$tries = 3;
start_connecting:
if ($this->ssl) {
$this->connection = @ftp_ssl_connect($this->getHost(), $this->getPort(), $this->getTimeout());
} else {
$this->connection = @ftp_connect($this->getHost(), $this->getPort(), $this->getTimeout());
}
if ( ! $this->connection) {
$tries--;
if ($tries > 0) goto start_connecting;
throw new ConnectionRuntimeException('Could not connect to host: ' . $this->getHost() . ', port:' . $this->getPort());
}
$this->login();
$this->setUtf8Mode();
$this->setConnectionPassiveMode();
$this->setConnectionRoot();
$this->isPureFtpd = $this->isPureFtpdServer();
}
/**
* Set the connection to UTF-8 mode.
*/
protected function setUtf8Mode()
{
if ($this->utf8) {
$response = ftp_raw($this->connection, "OPTS UTF8 ON");
if (substr($response[0], 0, 3) !== '200') {
throw new ConnectionRuntimeException(
'Could not set UTF-8 mode for connection: ' . $this->getHost() . '::' . $this->getPort()
);
}
}
}
/**
* Set the connections to passive mode.
*
* @throws ConnectionRuntimeException
*/
protected function setConnectionPassiveMode()
{
if (is_bool($this->ignorePassiveAddress) && defined('FTP_USEPASVADDRESS')) {
ftp_set_option($this->connection, FTP_USEPASVADDRESS, ! $this->ignorePassiveAddress);
}
if ( ! ftp_pasv($this->connection, $this->passive)) {
throw new ConnectionRuntimeException(
'Could not set passive mode for connection: ' . $this->getHost() . '::' . $this->getPort()
);
}
}
/**
* Set the connection root.
*/
protected function setConnectionRoot()
{
$root = $this->getRoot();
$connection = $this->connection;
if ($root && ! ftp_chdir($connection, $root)) {
throw new InvalidRootException('Root is invalid or does not exist: ' . $this->getRoot());
}
// Store absolute path for further reference.
// This is needed when creating directories and
// initial root was a relative path, else the root
// would be relative to the chdir'd path.
$this->root = ftp_pwd($connection);
}
/**
* Login.
*
* @throws ConnectionRuntimeException
*/
protected function login()
{
set_error_handler(function () {
});
$isLoggedIn = ftp_login(
$this->connection,
$this->getUsername(),
$this->getPassword()
);
restore_error_handler();
if ( ! $isLoggedIn) {
$this->disconnect();
throw new ConnectionRuntimeException(
'Could not login with connection: ' . $this->getHost() . '::' . $this->getPort(
) . ', username: ' . $this->getUsername()
);
}
}
/**
* Disconnect from the FTP server.
*/
public function disconnect()
{
if (is_resource($this->connection)) {
@ftp_close($this->connection);
}
$this->connection = null;
}
/**
* @inheritdoc
*/
public function write($path, $contents, Config $config)
{
$stream = fopen('php://temp', 'w+b');
fwrite($stream, $contents);
rewind($stream);
$result = $this->writeStream($path, $stream, $config);
fclose($stream);
if ($result === false) {
return false;
}
$result['contents'] = $contents;
$result['mimetype'] = $config->get('mimetype') ?: Util::guessMimeType($path, $contents);
return $result;
}
/**
* @inheritdoc
*/
public function writeStream($path, $resource, Config $config)
{
$this->ensureDirectory(Util::dirname($path));
if ( ! ftp_fput($this->getConnection(), $path, $resource, $this->transferMode)) {
return false;
}
if ($visibility = $config->get('visibility')) {
$this->setVisibility($path, $visibility);
}
$type = 'file';
return compact('type', 'path', 'visibility');
}
/**
* @inheritdoc
*/
public function update($path, $contents, Config $config)
{
return $this->write($path, $contents, $config);
}
/**
* @inheritdoc
*/
public function updateStream($path, $resource, Config $config)
{
return $this->writeStream($path, $resource, $config);
}
/**
* @inheritdoc
*/
public function rename($path, $newpath)
{
return ftp_rename($this->getConnection(), $path, $newpath);
}
/**
* @inheritdoc
*/
public function delete($path)
{
return ftp_delete($this->getConnection(), $path);
}
/**
* @inheritdoc
*/
public function deleteDir($dirname)
{
$connection = $this->getConnection();
$contents = array_reverse($this->listDirectoryContents($dirname, false));
foreach ($contents as $object) {
if ($object['type'] === 'file') {
if ( ! ftp_delete($connection, $object['path'])) {
return false;
}
} elseif ( ! $this->deleteDir($object['path'])) {
return false;
}
}
return ftp_rmdir($connection, $dirname);
}
/**
* @inheritdoc
*/
public function createDir($dirname, Config $config)
{
$connection = $this->getConnection();
$directories = explode('/', $dirname);
foreach ($directories as $directory) {
if (false === $this->createActualDirectory($directory, $connection)) {
$this->setConnectionRoot();
return false;
}
ftp_chdir($connection, $directory);
}
$this->setConnectionRoot();
return ['type' => 'dir', 'path' => $dirname];
}
/**
* Create a directory.
*
* @param string $directory
* @param resource $connection
*
* @return bool
*/
protected function createActualDirectory($directory, $connection)
{
// List the current directory
$listing = ftp_nlist($connection, '.') ?: [];
foreach ($listing as $key => $item) {
if (preg_match('~^\./.*~', $item)) {
$listing[$key] = substr($item, 2);
}
}
if (in_array($directory, $listing, true)) {
return true;
}
return (boolean) ftp_mkdir($connection, $directory);
}
/**
* @inheritdoc
*/
public function getMetadata($path)
{
if ($path === '') {
return ['type' => 'dir', 'path' => ''];
}
if (@ftp_chdir($this->getConnection(), $path) === true) {
$this->setConnectionRoot();
return ['type' => 'dir', 'path' => $path];
}
$listing = $this->ftpRawlist('-A', $path);
if (empty($listing) || in_array('total 0', $listing, true)) {
return false;
}
if (preg_match('/.* not found/', $listing[0])) {
return false;
}
if (preg_match('/^total [0-9]*$/', $listing[0])) {
array_shift($listing);
}
return $this->normalizeObject($listing[0], '');
}
/**
* @inheritdoc
*/
public function getMimetype($path)
{
if ( ! $metadata = $this->getMetadata($path)) {
return false;
}
$metadata['mimetype'] = MimeType::detectByFilename($path);
return $metadata;
}
/**
* @inheritdoc
*/
public function getTimestamp($path)
{
$timestamp = ftp_mdtm($this->getConnection(), $path);
return ($timestamp !== -1) ? ['path' => $path, 'timestamp' => $timestamp] : false;
}
/**
* @inheritdoc
*/
public function read($path)
{
if ( ! $object = $this->readStream($path)) {
return false;
}
$object['contents'] = stream_get_contents($object['stream']);
fclose($object['stream']);
unset($object['stream']);
return $object;
}
/**
* @inheritdoc
*/
public function readStream($path)
{
$stream = fopen('php://temp', 'w+b');
$result = ftp_fget($this->getConnection(), $stream, $path, $this->transferMode);
rewind($stream);
if ( ! $result) {
fclose($stream);
return false;
}
return ['type' => 'file', 'path' => $path, 'stream' => $stream];
}
/**
* @inheritdoc
*/
public function setVisibility($path, $visibility)
{
$mode = $visibility === AdapterInterface::VISIBILITY_PUBLIC ? $this->getPermPublic() : $this->getPermPrivate();
if ( ! ftp_chmod($this->getConnection(), $mode, $path)) {
return false;
}
return compact('path', 'visibility');
}
/**
* @inheritdoc
*
* @param string $directory
*/
protected function listDirectoryContents($directory, $recursive = true)
{
if ($recursive && $this->recurseManually) {
return $this->listDirectoryContentsRecursive($directory);
}
$options = $recursive ? '-alnR' : '-aln';
$listing = $this->ftpRawlist($options, $directory);
return $listing ? $this->normalizeListing($listing, $directory) : [];
}
/**
* @inheritdoc
*
* @param string $directory
*/
protected function listDirectoryContentsRecursive($directory)
{
$listing = $this->normalizeListing($this->ftpRawlist('-aln', $directory) ?: [], $directory);
$output = [];
foreach ($listing as $item) {
$output[] = $item;
if ($item['type'] !== 'dir') {
continue;
}
$output = array_merge($output, $this->listDirectoryContentsRecursive($item['path']));
}
return $output;
}
/**
* Check if the connection is open.
*
* @return bool
*
* @throws ConnectionErrorException
*/
public function isConnected()
{
return is_resource($this->connection)
&& $this->getRawExecResponseCode('NOOP') === 200;
}
/**
* @return bool
*/
protected function isPureFtpdServer()
{
$response = ftp_raw($this->connection, 'HELP');
return stripos(implode(' ', $response), 'Pure-FTPd') !== false;
}
/**
* The ftp_rawlist function with optional escaping.
*
* @param string $options
* @param string $path
*
* @return array
*/
protected function ftpRawlist($options, $path)
{
$connection = $this->getConnection();
if ($this->isPureFtpd) {
$path = str_replace(' ', '\ ', $path);
$this->escapePath($path);
}
return ftp_rawlist($connection, $options . ' ' . $path);
}
private function getRawExecResponseCode($command)
{
$response = @ftp_raw($this->connection, trim($command));
return (int) preg_replace('/\D/', '', implode(' ', $response));
}
}