Check in custom cache class

lib/FileCache.php

@@ -0,0 +1,121 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ * @author Sebastian Wessalowski <sebastian@wessalowski.org>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Vincent Petry <pvince81@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 OCA\Bookmarks;
+
+use OCP\Files\IAppData;
+use OCP\ICache;
+
+class FileCache implements ICache {
+	const TIMEOUT = 60*60*24*30*2; // two months
+
+	protected $storage;
+
+	public function __construct(IAppData $appData) {
+		try {
+			$this->storage = $appData->getFolder('cache');
+		} catch (\OCP\Files\NotFoundException $e) {
+			$appData->newFolder('cache');
+			$this->storage = $appData->getFolder('cache');
+		}
+	}
+
+	/**
+	 * @param string $key
+	 * @return mixed|null
+	 * @throws \OC\ForbiddenException
+	 */
+	public function get($key) {
+		$result = null;
+		if ($this->hasKey($key)) {
+			$result = $this->storage->getFile($key)->getContent();
+		}
+		return $result;
+	}
+	/**
+	 * Returns the size of the stored/cached data
+	 *
+	 * @param string $key
+	 * @return int
+	 */
+	public function size($key) {
+		$result = 0;
+		if ($this->hasKey($key)) {
+			$result = $this->storage->getFile($key)->getSize();
+		}
+		return $result;
+	}
+	/**
+	 * @param string $key
+	 * @param mixed $value
+	 * @param int $ttl
+	 * @return bool|mixed
+	 * @throws \OC\ForbiddenException
+	 */
+	public function set($key, $value, $ttl = 0) {
+		$file = $this->storage->newFile($key);
+		$file->putContent($value);
+		return true;
+	}
+	/**
+	 * @param string $key
+	 * @return bool
+	 * @throws \OC\ForbiddenException
+	 */
+	public function hasKey($key) {
+		if ($this->storage->fileExists($key)) {
+			return true;
+		}
+		return false;
+	}
+	/**
+	 * @param string $key
+	 * @return bool|mixed
+	 * @throws \OC\ForbiddenException
+	 */
+	public function remove($key) {
+		return $this->storage->getFile($key)->delete();
+	}
+	/**
+	 * @param string $prefix
+	 * @return bool
+	 * @throws \OC\ForbiddenException
+	 */
+	public function clear($prefix = '') {
+		$this->storage->delete();
+	}
+	/**
+	 * Runs GC
+	 * @throws \OC\ForbiddenException
+	 */
+	public function gc() {
+		foreach ($this->storage->getDirectoryListing() as $file) {
+			if (time() - self::TIMEOUT > $file->getMTime()) {
+				$file->delete();
+			}
+		}
+	}
+}