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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Files\Stream;
/**
* stream wrapper that provides a callback on stream close
*/
class Close {
private static $callBacks = array();
private $path = '';
private $source;
private static $open = array();
public function stream_open($path, $mode, $options, &$opened_path) {
$path = substr($path, strlen('close://'));
$this->path = $path;
$this->source = fopen($path, $mode);
if (is_resource($this->source)) {
$this->meta = stream_get_meta_data($this->source);
}
self::$open[] = $path;
return is_resource($this->source);
}
public function stream_seek($offset, $whence = SEEK_SET) {
return fseek($this->source, $offset, $whence) === 0;
}
public function stream_tell() {
return ftell($this->source);
}
public function stream_read($count) {
return fread($this->source, $count);
}
public function stream_write($data) {
return fwrite($this->source, $data);
}
public function stream_set_option($option, $arg1, $arg2) {
switch ($option) {
case STREAM_OPTION_BLOCKING:
stream_set_blocking($this->source, $arg1);
break;
case STREAM_OPTION_READ_TIMEOUT:
stream_set_timeout($this->source, $arg1, $arg2);
break;
case STREAM_OPTION_WRITE_BUFFER:
stream_set_write_buffer($this->source, $arg1, $arg2);
}
}
public function stream_stat() {
return fstat($this->source);
}
public function stream_lock($mode) {
flock($this->source, $mode);
}
public function stream_flush() {
return fflush($this->source);
}
public function stream_eof() {
return feof($this->source);
}
public function url_stat($path) {
$path = substr($path, strlen('close://'));
if (file_exists($path)) {
return stat($path);
} else {
return false;
}
}
public function stream_close() {
fclose($this->source);
if (isset(self::$callBacks[$this->path])) {
call_user_func(self::$callBacks[$this->path], $this->path);
}
}
public function unlink($path) {
$path = substr($path, strlen('close://'));
return unlink($path);
}
/**
* @param string $path
*/
public static function registerCallback($path, $callback) {
self::$callBacks[$path] = $callback;
}
}
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