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Diffstat (limited to 'lib/private/Files/Storage/LocalTempFileTrait.php')
-rw-r--r-- | lib/private/Files/Storage/LocalTempFileTrait.php | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/lib/private/Files/Storage/LocalTempFileTrait.php b/lib/private/Files/Storage/LocalTempFileTrait.php new file mode 100644 index 00000000000..88f11e4e752 --- /dev/null +++ b/lib/private/Files/Storage/LocalTempFileTrait.php @@ -0,0 +1,80 @@ +<?php +/** + * @author Lukas Reschke <lukas@owncloud.com> + * @author Morris Jobke <hey@morrisjobke.de> + * @author Thomas Müller <thomas.mueller@tmit.eu> + * + * @copyright Copyright (c) 2016, ownCloud, Inc. + * @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\Storage; + +/** + * Storage backend class for providing common filesystem operation methods + * which are not storage-backend specific. + * + * \OC\Files\Storage\Common is never used directly; it is extended by all other + * storage backends, where its methods may be overridden, and additional + * (backend-specific) methods are defined. + * + * Some \OC\Files\Storage\Common methods call functions which are first defined + * in classes which extend it, e.g. $this->stat() . + */ +trait LocalTempFileTrait { + + /** @var string[] */ + protected $cachedFiles = []; + + /** + * @param string $path + * @return string + */ + protected function getCachedFile($path) { + if (!isset($this->cachedFiles[$path])) { + $this->cachedFiles[$path] = $this->toTmpFile($path); + } + return $this->cachedFiles[$path]; + } + + /** + * @param string $path + */ + protected function removeCachedFile($path) { + unset($this->cachedFiles[$path]); + } + + /** + * @param string $path + * @return string + */ + protected function toTmpFile($path) { //no longer in the storage api, still useful here + $source = $this->fopen($path, 'r'); + if (!$source) { + return false; + } + if ($pos = strrpos($path, '.')) { + $extension = substr($path, $pos); + } else { + $extension = ''; + } + $tmpFile = \OC::$server->getTempManager()->getTemporaryFile($extension); + $target = fopen($tmpFile, 'w'); + \OC_Helper::streamCopy($source, $target); + fclose($target); + return $tmpFile; + } +} |