112 lines
2.9 KiB
PHP
112 lines
2.9 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016 Julius Härtl <jus@bitgrid.net>
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*
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* @author Julius Härtl <jus@bitgrid.net>
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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 OCA\Theming;
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use OCP\IConfig;
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use OCP\Files\IAppData;
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use OCP\Files\NotFoundException;
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use OCP\Files\NotPermittedException;
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class ImageManager {
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/** @var IConfig */
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private $config;
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/** @var IAppData */
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private $appData;
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/**
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* ImageManager constructor.
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*
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* @param IConfig $config
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* @param IAppData $appData
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*/
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public function __construct(IConfig $config,
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IAppData $appData
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) {
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$this->config = $config;
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$this->appData = $appData;
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}
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/**
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* Get folder for current theming files
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*
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* @return \OCP\Files\SimpleFS\ISimpleFolder
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* @throws NotPermittedException
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* @throws \RuntimeException
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*/
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public function getCacheFolder() {
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$cacheBusterValue = $this->config->getAppValue('theming', 'cachebuster', '0');
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try {
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$folder = $this->appData->getFolder($cacheBusterValue);
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} catch (NotFoundException $e) {
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$folder = $this->appData->newFolder($cacheBusterValue);
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$this->cleanup();
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}
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return $folder;
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}
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/**
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* Get a file from AppData
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*
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* @param string $filename
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* @throws NotFoundException
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* @return \OCP\Files\SimpleFS\ISimpleFile
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*/
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public function getCachedImage($filename) {
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$currentFolder = $this->getCacheFolder();
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return $currentFolder->getFile($filename);
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}
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/**
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* Store a file for theming in AppData
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*
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* @param string $filename
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* @param string $data
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* @return \OCP\Files\SimpleFS\ISimpleFile
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*/
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public function setCachedImage($filename, $data) {
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$currentFolder = $this->getCacheFolder();
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if ($currentFolder->fileExists($filename)) {
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$file = $currentFolder->getFile($filename);
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} else {
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$file = $currentFolder->newFile($filename);
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}
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$file->putContent($data);
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return $file;
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}
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/**
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* remove cached files that are not required any longer
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*/
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public function cleanup() {
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$currentFolder = $this->getCacheFolder();
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$folders = $this->appData->getDirectoryListing();
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foreach ($folders as $folder) {
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if ($folder->getName() !== 'images' && $folder->getName() !== $currentFolder->getName()) {
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$folder->delete();
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}
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}
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}
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}
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