PlatformNonce.php

<?php
 
namespace ceLTIc\LTI;
 
class PlatformNonce
{
 
    const MAX_NONCE_AGE = 30;  // in minutes
 
    public static $maximumLength = 50;
 
    public $expires = null;
 
    private $platform = null;
 
    private $value = null;
 
    public function __construct($platform, $value = null)
    {
        $this->platform = $platform;
        $this->value = substr($value, -self::$maximumLength);
        $this->expires = time() + (self::MAX_NONCE_AGE * 60);
    }
 
    public function load()
    {
        return $this->platform->getDataConnector()->loadPlatformNonce($this);
    }
 
    public function save()
    {
        return $this->platform->getDataConnector()->savePlatformNonce($this);
    }
 
    public function delete()
    {
        return $this->platform->getDataConnector()->deletePlatformNonce($this);
    }
 
    public function getPlatform()
    {
        return $this->platform;
    }
 
    public function getValue()
    {
        return $this->value;
    }
 
}