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<?php
namespace IMSGlobal\LTI\ToolProvider;
/**
* Class to represent a tool consumer nonce
*
* @author Stephen P Vickers <svickers@imsglobal.org>
* @copyright IMS Global Learning Consortium Inc
* @date 2016
* @version 3.0.2
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
*/
class ConsumerNonce
{
/**
* Maximum age nonce values will be retained for (in minutes).
*/
const MAX_NONCE_AGE = 30; // in minutes
/**
* Date/time when the nonce value expires.
*
* @var int $expires
*/
public $expires = null;
/**
* Tool Consumer to which this nonce applies.
*
* @var ToolConsumer $consumer
*/
private $consumer = null;
/**
* Nonce value.
*
* @var string $value
*/
private $value = null;
/**
* Class constructor.
*
* @param ToolConsumer $consumer Consumer object
* @param string $value Nonce value (optional, default is null)
*/
public function __construct($consumer, $value = null)
{
$this->consumer = $consumer;
$this->value = $value;
$this->expires = time() + (self::MAX_NONCE_AGE * 60);
}
/**
* Load a nonce value from the database.
*
* @return boolean True if the nonce value was successfully loaded
*/
public function load()
{
return $this->consumer->getDataConnector()->loadConsumerNonce($this);
}
/**
* Save a nonce value in the database.
*
* @return boolean True if the nonce value was successfully saved
*/
public function save()
{
return $this->consumer->getDataConnector()->saveConsumerNonce($this);
}
/**
* Get tool consumer.
*
* @return ToolConsumer Consumer for this nonce
*/
public function getConsumer()
{
return $this->consumer;
}
/**
* Get outcome value.
*
* @return string Outcome value
*/
public function getValue()
{
return $this->value;
}
}