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<?php |
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/** |
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* This file is part of the tiqr project. |
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* |
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* The tiqr project aims to provide an open implementation for |
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* authentication using mobile devices. It was initiated by |
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* SURFnet and developed by Egeniq. |
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* |
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* More information: http://www.tiqr.org |
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* |
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* @author Ivo Jansch <[email protected]> |
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* |
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* @package tiqr |
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* |
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* @license New BSD License - See LICENSE file for details. |
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* |
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* @copyright (C) 2010-2012 SURFnet BV |
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*/ |
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require_once 'Tiqr/UserStorage/GenericStore.php'; |
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/** |
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* This user storage implementation implements a simple user storage using json files. |
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* This is mostly for demonstration and development purposes. In a production environment |
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* please supply your own implementation that hosts the data in your user database OR |
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* in a secure (e.g. hardware encrypted) storage. |
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* @author ivo |
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*/ |
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class Tiqr_UserStorage_File extends Tiqr_UserStorage_GenericStore |
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{ |
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protected $_path; |
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/** |
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* Create an instance |
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* @param $config |
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*/ |
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public function __construct($config, $secretconfig = array()) |
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{ |
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parent::__construct($config, $secretconfig); |
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$this->_path = $config["path"]; |
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} |
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/** |
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* This function takes care of actually saving the user data to a JSON file. |
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* @param String $userId |
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* @param array $data |
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*/ |
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protected function _saveUser($userId, $data) |
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{ |
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file_put_contents($this->getPath().$userId.".json", json_encode($data)); |
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return true; |
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} |
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/** |
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* This function takes care of loading the user data from a JSON file. |
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* @param String $userId |
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* @return false if the data is not present, or an array containing the data. |
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*/ |
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protected function _loadUser($userId, $failIfNotFound = TRUE) |
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{ |
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$fileName = $this->getPath().$userId.".json"; |
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$data = NULL; |
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if (file_exists($fileName)) { |
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$data = json_decode(file_get_contents($this->getPath().$userId.".json"), true); |
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} |
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if ($data === NULL) { |
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if ($failIfNotFound) { |
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throw new Exception('Error loading data for user: ' . var_export($userId, TRUE)); |
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} else { |
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return false; |
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} |
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} else { |
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return $data; |
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} |
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} |
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/** |
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* Delete user data (un-enroll). |
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* @param String $userId |
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*/ |
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protected function _deleteUser($userId) |
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{ |
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$filename = $this->getPath().$userId.".json"; |
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if (file_exists($filename)) { |
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unlink($filename); |
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} |
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} |
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/** |
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* Retrieve the path where the json files are stored. |
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* @return String |
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*/ |
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public function getPath() |
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{ |
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if (substr($this->_path, -1)!="/") return $this->_path."/"; |
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return $this->_path; |
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} |
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} |
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