PlatformNonce.php

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