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<?php |
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/** |
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* This file is part of SebastianFeldmann\Ftp. |
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* |
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* (c) Sebastian Feldmann <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace SebastianFeldmann\Ftp; |
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use RuntimeException; |
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/** |
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* Class Client |
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* |
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* @package SebastianFeldmann\Ftp |
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* @author Sebastian Feldmann <[email protected]> |
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* @link https://github.com/sebastianfeldmann/ftp |
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* @since Class available since Release 0.9.0 |
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* |
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* @method bool cdUp() - Changes to the parent directory |
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* @method string chDir(string $directory) - Changes the current directory on a FTP server |
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* @method string mdtm(string $file) - Returns last modification time from given file |
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* @method bool mkDir(string $path) - Create a directory on the FTP server |
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* @method array mlsd(string $path) - Return list of file info arrays (>= php 7.2.0) |
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* @method array nlist(string $path) - Returns list of files in given dir |
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* @method bool pasv(bool $passive) - Sets the ftp passive mode on or off |
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* @method bool put(string $name, string $file, int $mode) - Uploads a file to the FTP server |
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* @method string pwd() - Returns current working directory |
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* @method int size(string $file) - Returns given files sizes in bytes |
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*/ |
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class Client |
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{ |
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/** |
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* PHP FTP connection resource. |
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* |
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* @var resource |
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*/ |
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private $connection; |
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/** |
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* Host to connect to. |
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* |
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* @var string |
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*/ |
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private $host; |
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/** |
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* Port to connect to. |
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* |
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* @var int |
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*/ |
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private $port; |
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/** |
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* User to login. |
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* |
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* @var string |
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*/ |
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private $user; |
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/** |
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* Password to login. |
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* |
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* @var string |
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*/ |
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private $password; |
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/** |
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* Use passive ftp mode |
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* |
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* @var bool |
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*/ |
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private $passive; |
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/** |
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* Client constructor. |
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* |
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* @param string $url |
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* @param bool $passive |
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*/ |
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public function __construct(string $url, bool $passive = false) |
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{ |
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if (!extension_loaded('ftp')) { |
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throw new RuntimeException('FTP extension is not loaded.'); |
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} |
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$this->passive = $passive; |
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$this->setup($url); |
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$this->login(); |
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} |
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/** |
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* Determine if file is a directory. |
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* |
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* @param string $name |
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* @return bool |
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*/ |
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public function isDir(string $name) |
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{ |
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$current = $this->pwd(); |
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try { |
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$this->chDir($name); |
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$this->chDir($current); |
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return true; |
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} catch (\Exception $e) { |
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// do nothing |
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} |
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return false; |
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} |
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/** |
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* Returns to the home directory. |
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* |
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* @return void |
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*/ |
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public function chHome() |
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{ |
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$this->chDir(''); |
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} |
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/** |
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* Return list of all files in directory. |
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* |
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* @param string $path |
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* @return \SebastianFeldmann\Ftp\File[] |
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* @throws \Exception |
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*/ |
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public function ls(string $path = '') : array |
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{ |
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return version_compare(PHP_VERSION, '7.2.0', '>=') |
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? $this->ls72($path) |
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: $this->lsLegacy($path); |
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} |
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/** |
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* Return list of all files in directory for php 7.2.0 and higher. |
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* |
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* @param string $path |
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* @return \SebastianFeldmann\Ftp\File[] |
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* @throws \Exception |
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*/ |
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private function ls72(string $path) : array |
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{ |
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$list = []; |
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foreach ($this->mlsd($path) as $fileInfo) { |
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$list[] = new File($fileInfo); |
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} |
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return $list; |
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} |
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/** |
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* Return list of all files in directory for php versione below 7.2.0. |
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* |
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* @param string $path |
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* @return \SebastianFeldmann\Ftp\File[] |
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* @throws \Exception |
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*/ |
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private function lsLegacy(string $path) : array |
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{ |
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$list = []; |
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foreach ($this->nlist($path) as $name) { |
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$type = $this->isDir($name) ? 'dir' : 'file'; |
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$size = $this->size($name); |
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$mtime = $this->mdtm($name); |
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if ($mtime == -1) { |
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throw new RuntimeException('FTP server doesnt support \'ftp_mdtm\''); |
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} |
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$list[] = new File(['name' => $name, 'modify' => $mtime, 'type' => $type, 'size' => $size]); |
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} |
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return $list; |
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} |
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/** |
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* Return list of directories in given path. |
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* |
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* @param string $path |
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* @return array |
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* @throws \Exception |
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*/ |
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public function lsDirs(string $path = '') : array |
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{ |
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return array_filter( |
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$this->ls($path), |
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function(File $file) { |
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return $file->isDir(); |
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} |
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); |
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} |
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/** |
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* Return list of files in given path. |
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* |
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* @param string $path |
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* @return array |
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* @throws \Exception |
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*/ |
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public function lsFiles(string $path = '') : array |
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{ |
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return array_filter( |
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$this->ls($path), |
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function(File $file) { |
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return $file->isFile(); |
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} |
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); |
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} |
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/** |
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* Upload local file to ftp server. |
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* |
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* @param string $file Path to local file that should be uploaded. |
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* @param string $path Path to store the file under. |
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* @param string $name Filename on the ftp server. |
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* @return void |
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*/ |
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public function uploadFile(string $file, string $path, string $name) |
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{ |
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// to store the file we have to make sure the directory exists |
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foreach ($this->extractDirectories($path) as $dir) { |
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// if change to directory fails |
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// create the dir and change into it afterwards |
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try { |
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$this->chDir($dir); |
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} catch (\Exception $e) { |
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$this->mkDir($dir); |
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$this->chDir($dir); |
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} |
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} |
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if (!$this->put($name, $file, FTP_BINARY)) { |
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$error = error_get_last(); |
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$message = $error['message']; |
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throw new RuntimeException(sprintf('error uploading file: %s - %s', $file, $message)); |
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} |
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} |
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/** |
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* Setup local member variables by parsing the ftp url. |
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* |
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* @param string $url |
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*/ |
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private function setup(string $url) |
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{ |
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$parts = \parse_url($url); |
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$this->host = $parts['host'] ?? ''; |
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$this->port = $parts['port'] ?? 21; |
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$this->user = $parts['user'] ?? ''; |
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$this->password = $parts['pass'] ?? ''; |
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} |
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/** |
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* Setup ftp connection |
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* |
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* @throws \RuntimeException |
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*/ |
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private function login() |
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{ |
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if (empty($this->host)) { |
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throw new RuntimeException('no host to connect to'); |
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} |
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$old = error_reporting(0); |
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if (!$this->connection = ftp_connect($this->host, $this->port)) { |
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error_reporting($old); |
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throw new RuntimeException(sprintf('unable to connect to ftp server %s', $this->host)); |
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} |
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if (!ftp_login($this->connection, $this->user, $this->password)) { |
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error_reporting($old); |
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throw new RuntimeException( |
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sprintf('authentication failed for %s@%s', $this->user, $this->host) |
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); |
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} |
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// set passive mode if needed |
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$this->pasv($this->passive); |
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error_reporting($old); |
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} |
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/** |
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* Return list of remote directories to travers. |
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* |
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* @param string $path |
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* @return array |
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*/ |
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private function extractDirectories(string $path) : array |
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{ |
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$remoteDirs = []; |
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if (!empty($path)) { |
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$remoteDirs = explode('/', $path); |
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// fix empty first array element for absolute path |
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if (substr($path, 0, 1) === '/') { |
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$remoteDirs[0] = '/'; |
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} |
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$remoteDirs = array_filter($remoteDirs); |
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} |
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return $remoteDirs; |
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} |
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/** |
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* Handle all ftp_* functions. |
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* |
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* @param string $name |
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* @param array $args |
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* @return mixed |
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*/ |
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public function __call($name, $args) |
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{ |
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$function = 'ftp_' . strtolower($name); |
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if (!function_exists($function)) { |
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throw new RuntimeException(sprintf('invalid method call: %s', $function)); |
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} |
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$old = error_reporting(0); |
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array_unshift($args, $this->connection); |
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if (!$result = call_user_func_array($function, $args)) { |
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$error = error_get_last(); |
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error_reporting($old); |
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throw new RuntimeException($error['message']); |
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} |
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error_reporting($old); |
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return $result; |
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} |
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} |
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