<?php
class OauthCacheFile implements OauthCacheInterface
{
private $directory;
/**
* @param string $directory
* @throws OpenPayU_Exception_Configuration
*/
public function __construct($directory = null)
{
if ($directory === null) {
$directory = dirname(__FILE__).'/../../../Cache';
}
if (!is_dir($directory) || !is_writable($directory)) {
throw new OpenPayU_Exception_Configuration('Cache directory [' . $directory . '] not exist or not writable.');
}
$this->directory = $directory . (substr($directory, -1) != '/' ? '/' : '');
}
public function get($key)
{
$cache = @file_get_contents($this->directory . md5($key));
return $cache === false ? null : unserialize($cache);
}
public function set($key, $value)
{
return @file_put_contents($this->directory . md5($key), serialize($value));
}
public function invalidate($key)
{
return @unlink($this->directory . md5($key));
}
}