93de63777e
this removes the need for temporary storages with some external storage backends. The new method is added to a separate interface to maintain compatibility with storage backends implementing the storage interface directly (without inheriting common) Currently the interface is implemented for objectstorage based storages and local storage and used by webdav uploads Signed-off-by: Robin Appelman <robin@icewind.nl>
65 lines
1.7 KiB
PHP
65 lines
1.7 KiB
PHP
<?php declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Files\Stream;
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use Icewind\Streams\Wrapper;
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class CountReadStream extends Wrapper {
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/** @var int */
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private $count;
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/** @var callback */
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private $callback;
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public static function wrap($source, $callback) {
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$context = stream_context_create(array(
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'count' => array(
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'source' => $source,
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'callback' => $callback,
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)
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));
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return Wrapper::wrapSource($source, $context, 'count', self::class);
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}
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public function dir_opendir($path, $options) {
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return false;
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}
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public function stream_open($path, $mode, $options, &$opened_path) {
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$context = $this->loadContext('count');
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$this->callback = $context['callback'];
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return true;
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}
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public function stream_read($count) {
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$result = parent::stream_read($count);
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$this->count += strlen($result);
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return $result;
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}
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public function stream_close() {
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$result = parent::stream_close();
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call_user_func($this->callback, $this->count);
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return $result;
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}
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}
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