1 files changed, 77 insertions, 0 deletions
diff --git a/lib/cache/file.php b/lib/cache/file.php
new file mode 100644
index 00000000000..562c3d17167
--- /dev/null
+++ b/lib/cache/file.php
@@ -0,0 +1,77 @@
+<?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.
+ */
+
+
+class OC_Cache_File{
+	protected function getStorage() {
+		if(OC_User::isLoggedIn()){
+			$subdir = 'cache';
+			$view = new OC_FilesystemView('/'.OC_User::getUser());
+			if(!$view->file_exists($subdir)) {
+				$view->mkdir($subdir);
+			}
+			return new OC_FilesystemView('/'.OC_User::getUser().'/'.$subdir);
+		}else{
+			OC_Log::write('core','Can\'t get cache storage, user not logged in', OC_Log::ERROR);
+			return false;
+		}
+	}
+
+	public function get($key) {
+		if ($this->hasKey($key)) {
+			$storage = $this->getStorage();
+			return $storage->file_get_contents($key);
+		}
+		return null;
+	}
+
+	public function set($key, $value, $ttl=0) {
+		$storage = $this->getStorage();
+		if ($storage and $storage->file_put_contents($key, $value)) {
+			if ($ttl === 0) {
+				$ttl = 86400; // 60*60*24
+			}
+			return $storage->touch($key, time() + $ttl);
+		}
+		return false;
+	}
+
+	public function hasKey($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('/');
+			while($file=readdir($dh)){
+				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)){
+					$storage->unlink('/'.$file);
+				}
+			}
+		}
+		return true;
+	}
+}