web-base/core/External/ZipStream/BufferWriter.php
2021-01-13 01:36:04 +01:00

62 lines
1.7 KiB
PHP

<?php
/**
* Copyright (c) Borago 2019
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
**/
namespace External\ZipStream {
class BufferWriter implements Writer {
private $stream = '';
private $offset = 0;
private $callback = null;
public function __construct() {
}
public function registerCallback($callback) {
$this->callback = $callback;
}
public function write($data) {
$this->offset += strlen($data);
$this->stream .= $data;
if ($this->callback !== null) {
call_user_func($this->callback, $this);
}
return strlen($data);
}
public function read() {
$data = $this->stream;
$this->stream = '';
return $data;
}
public function offset() {
return $this->offset;
}
public function close() {
if ($this->callback !== null) {
call_user_func($this->callback, $this);
}
}
}
}