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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 Patrick Honing <[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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* |
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* Create SQL table (MySQL): |
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* CREATE TABLE `tiqrstate` (`key` varchar(255) PRIMARY KEY,`expire` int,`value` text); |
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* |
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*/ |
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class Tiqr_StateStorage_Pdo extends Tiqr_StateStorage_Abstract |
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{ |
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private $handle = null; |
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private $tablename; |
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private function keyExists($key) |
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{ |
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$sth = $this->handle->prepare("SELECT `key` FROM ".$this->tablename." WHERE `key` = ?"); |
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$sth->execute(array($key)); |
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return $sth->fetchColumn(); |
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} |
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private function cleanExpired() { |
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$sth = $this->handle->prepare("DELETE FROM ".$this->tablename." WHERE `expire` < ? AND NOT `expire` = 0"); |
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$sth->execute(array(time())); |
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} |
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/** |
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* (non-PHPdoc) |
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* @see library/tiqr/Tiqr/StateStorage/Tiqr_StateStorage_Abstract::setValue() |
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*/ |
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public function setValue($key, $value, $expire=0) |
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{ |
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if ($this->keyExists($key)) { |
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$sth = $this->handle->prepare("UPDATE ".$this->tablename." SET `value` = ?, `expire` = ? WHERE `key` = ?"); |
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} else { |
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$sth = $this->handle->prepare("INSERT INTO ".$this->tablename." (`value`,`expire`,`key`) VALUES (?,?,?)"); |
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} |
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// $expire == 0 means never expire |
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if ($expire != 0) { |
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$expire+=time(); // Store unix timestamp after which the expires |
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} |
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$res = $sth->execute(array(serialize($value),$expire,$key)); |
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} |
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/** |
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* (non-PHPdoc) |
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* @see library/tiqr/Tiqr/StateStorage/Tiqr_StateStorage_Abstract::unsetValue() |
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*/ |
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public function unsetValue($key) |
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{ |
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$sth = $this->handle->prepare("DELETE FROM ".$this->tablename." WHERE `key` = ?"); |
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$sth->execute(array($key)); |
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} |
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/** |
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* (non-PHPdoc) |
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* @see library/tiqr/Tiqr/StateStorage/Tiqr_StateStorage_Abstract::getValue() |
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*/ |
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public function getValue($key) |
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{ |
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if (rand(0, 1000) < 10) { |
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$this->cleanExpired(); |
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} |
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if ($this->keyExists($key)) { |
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$sth = $this->handle->prepare("SELECT `value` FROM ".$this->tablename." WHERE `key` = ? AND (`expire` >= ? OR `expire` = 0)"); |
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if (false === $sth) { |
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return NULL; |
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} |
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if (false === $sth->execute(array($key, time())) ) { |
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return NULL; |
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} |
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$result = $sth->fetchColumn(); |
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return unserialize($result); |
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} |
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return NULL; |
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} |
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public function __construct($config=array()) |
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{ |
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$this->tablename = $config['table']; |
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$this->handle = new PDO($config['dsn'],$config['username'],$config['password']); |
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} |
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} |
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Tiqr /
tiqr-server-libphp
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