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<?php /** * @package Hotspots * @author DanielDimitrov <daniel@compojoom.com> * @date 21.01.15 * * @copyright Copyright (C) 2008 - 2015 compojoom.com . All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE */ defined('JPATH_PLATFORM') or die; /** * Imagepng cache storage handler * * @since 5.0 */ class HotspotsLibraryCacheStorageImagepng extends JCacheStorageFile { /** * Get cached data from a file by id and group * * @param string $id The cache data id * @param string $group The cache data group * @param boolean $checkTime True to verify cache time expiration threshold * * @return mixed Boolean false on failure or a cached data string * * @since 11.1 */ public function get($id, $group, $checkTime = false) { $data = false; $path = $this->_getFilePath($id, $group); if ($checkTime == false || ($checkTime == true && $this->_checkExpire($id, $group) === true)) { if (file_exists($path)) { $data = @readfile($path); } return $data; } else { return false; } } /** * Store the data to a file by id and group * * @param string $id The cache data id * @param string $group The cache data group * @param string $data The data to store in cache * * @return boolean True on success, false otherwise * * @since 11.1 */ public function store($id, $group, $data) { $path = $this->_getFilePath($id, $group); return imagepng($data, $path); } /** * Get a cache file path from an id/group pair * * @param string $id The cache data id * @param string $group The cache data group * * @return string The cache file path * * @since 11.1 */ protected function _getFilePath($id, $group) { $name = $this->_getCacheId($id, $group); $dir = $this->_root . '/' . $group; // If the folder doesn't exist try to create it if (!is_dir($dir)) { // Make sure the index file is there $indexFile = $dir . '/index.html'; @mkdir($dir) && file_put_contents($indexFile, '<!DOCTYPE html><title></title>'); } // Make sure the folder exists if (!is_dir($dir)) { return false; } return $dir . '/' . $name . '.png'; } }
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