1 files changed, 118 insertions, 0 deletions
diff --git a/lib/private/cache/file.php b/lib/private/cache/file.php
new file mode 100644
index 00000000000..2ab914d17b8
--- /dev/null
+++ b/lib/private/cache/file.php
@@ -0,0 +1,118 @@
+<?php
+/**
+ * Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\Cache;
+
+class File {
+	protected $storage;
+	protected function getStorage() {
+		if (isset($this->storage)) {
+			return $this->storage;
+		}
+		if(\OC_User::isLoggedIn()) {
+			\OC\Files\Filesystem::initMountPoints(\OC_User::getUser());
+			$subdir = 'cache';
+			$view = new \OC\Files\View('/' . \OC_User::getUser());
+			if(!$view->file_exists($subdir)) {
+				$view->mkdir($subdir);
+			}
+			$this->storage = new \OC\Files\View('/' . \OC_User::getUser().'/'.$subdir);
+			return $this->storage;
+		}else{
+			\OC_Log::write('core', 'Can\'t get cache storage, user not logged in', \OC_Log::ERROR);
+			return false;
+		}
+	}
+
+	public function get($key) {
+		$result = null;
+		$proxyStatus = \OC_FileProxy::$enabled;
+		\OC_FileProxy::$enabled = false;
+		if ($this->hasKey($key)) {
+			$storage = $this->getStorage();
+			$result = $storage->file_get_contents($key);
+		}
+		\OC_FileProxy::$enabled = $proxyStatus;
+		return $result;
+	}
+
+	public function set($key, $value, $ttl=0) {
+		$storage = $this->getStorage();
+		$result = false;
+		$proxyStatus = \OC_FileProxy::$enabled;
+		\OC_FileProxy::$enabled = false;
+		if ($storage and $storage->file_put_contents($key, $value)) {
+			if ($ttl === 0) {
+				$ttl = 86400; // 60*60*24
+			}
+			$result = $storage->touch($key, time() + $ttl);
+		}
+		\OC_FileProxy::$enabled = $proxyStatus;
+		return $result;
+	}
+
+	public function hasKey($key) {
+		$storage = $this->getStorage();
+		if ($storage && $storage->is_file($key)) {
+			$mtime = $storage->filemtime($key);
+			if ($mtime < time()) {
+				$storage->unlink($key);
+				return false;
+			}
+			return true;
+		}
+		return false;
+	}
+
+	public function remove($key) {
+		$storage = $this->getStorage();
+		if(!$storage) {
+			return false;
+		}
+		return $storage->unlink($key);
+	}
+
+	public function clear($prefix='') {
+		$storage = $this->getStorage();
+		if($storage and $storage->is_dir('/')) {
+			$dh=$storage->opendir('/');
+			if(is_resource($dh)) {
+				while (($file = readdir($dh)) !== false) {
+					if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
+						$storage->unlink('/'.$file);
+					}
+				}
+			}
+		}
+		return true;
+	}
+
+	public function gc() {
+		$storage = $this->getStorage();
+		if($storage and $storage->is_dir('/')) {
+			$now = time();
+			$dh=$storage->opendir('/');
+			if(!is_resource($dh)) {
+				return null;
+			}
+			while (($file = readdir($dh)) !== false) {
+				if($file!='.' and $file!='..') {
+					$mtime = $storage->filemtime('/'.$file);
+					if ($mtime < $now) {
+						$storage->unlink('/'.$file);
+					}
+				}
+			}
+		}
+	}
+
+	public static function loginListener() {
+		$c = new self();
+		$c->gc();
+	}
+}