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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) 2010-2011 SURFnet BV |
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*/ |
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/** |
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* @internal includes |
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*/ |
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require_once("Tiqr/StateStorage/Abstract.php"); |
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/** |
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* Utility class to create specific StateStorage instances. |
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* StateStorage is used to store temporary information used during |
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* enrollment and authentication sessions. |
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* @author ivo |
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* |
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*/ |
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class Tiqr_StateStorage |
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{ |
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/** |
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* Get a storage of a certain type (default: 'file') |
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* @param String $type The type of storage to create. Supported |
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* types are 'file' and 'memcache'. |
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* @param array $options The options to pass to the storage |
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* instance. See the documentation |
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* in the StateStorage/ subdirectory for |
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* options per type. |
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* @throws Exception If an unknown type is requested. |
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*/ |
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public static function getStorage($type="file", $options=array()) |
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{ |
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switch ($type) { |
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case "file": |
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require_once("Tiqr/StateStorage/File.php"); |
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$instance = new Tiqr_StateStorage_File($options); |
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break; |
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case "memcache": |
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require_once("Tiqr/StateStorage/Memcache.php"); |
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$instance = new Tiqr_StateStorage_Memcache($options); |
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break; |
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case "pdo": |
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require_once("Tiqr/StateStorage/Pdo.php"); |
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$requiredOptions = ['table', 'dsn', 'username', 'password']; |
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foreach ($requiredOptions as $requirement) { |
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if (!array_key_exists($requirement, $options)) { |
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throw new RuntimeException( |
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sprintf( |
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'Please configure the "%s" configuration option for the PDO state storage', |
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$requirement |
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) |
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); |
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} |
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} |
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$pdoInstance = new PDO($options['dsn'],$options['username'],$options['password']); |
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// Set a hard-coded default for the probability the expired state is removed |
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// 0.1 translates to a 10% chance the garbage collection is executed |
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$cleanupProbability = 0.1; |
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if (array_key_exists('cleanup_probability', $options) && is_numeric($options['cleanup_probability'])) { |
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$cleanupProbability = $options['cleanup_probability']; |
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} |
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$tablename = $options['table']; |
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$instance = new Tiqr_StateStorage_Pdo($pdoInstance, $tablename, $cleanupProbability); |
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break; |
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default: |
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if (!isset($type)) { |
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throw new Exception('Class name not set'); |
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1 |
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} elseif (!class_exists($type)) { |
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throw new Exception('Class not found: ' . var_export($type, TRUE)); |
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} elseif (!is_subclass_of($type, 'Tiqr_StateStorage_Abstract')) { |
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throw new Exception('Class ' . $type . ' not subclass of Tiqr_StateStorage_Abstract'); |
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} |
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$instance = new $type($options); |
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} |
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$instance->init(); |
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return $instance; |
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} |
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} |
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Tiqr /
tiqr-server-libphp
