File: src/Rules/ValidAt.php

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File: src/Rules/ValidAt.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP PASeTo
Encrypt and decrypt data with PaSeTO protocol
Author: By
Last change:
Date: 5 months ago
Size: 1,702 bytes
 

Contents

Class file image Download
<?php
declare(strict_types=1);
namespace
ParagonIE\Paseto\Rules;

use
ParagonIE\Paseto\{
   
JsonToken,
   
ValidationRuleInterface
};
use
ParagonIE\Paseto\Exception\PasetoException;

/**
 * Class ValidAt
 * @package ParagonIE\Paseto\Rules
 */
class ValidAt implements ValidationRuleInterface
{
   
/** @var string $failure */
   
protected $failure = 'OK';

   
/** @var \DateTimeInterface $now */
   
protected $now;

   
/**
     * ValidAt constructor.
     * @param \DateTimeInterface|null $now
     */
   
public function __construct(\DateTimeInterface $now = null)
    {
        if (!
$now) {
           
$now = new \DateTime();
        }
       
$this->now = $now;
    }

   
/**
     * @return string
     */
   
public function getFailureMessage(): string
   
{
        return
$this->failure;
    }

   
/**
     * @param JsonToken $token
     * @return bool
     */
   
public function isValid(JsonToken $token): bool
   
{
        try {
           
$issuedAt = $token->getIssuedAt();
            if (
$issuedAt > $this->now) {
               
$this->failure = 'This token was issued in the future.';
                return
false;
            }
           
$notBefore = $token->getNotBefore();
            if (
$notBefore > $this->now) {
               
$this->failure = 'This token cannot be used yet.';
                return
false;
            }
           
$expires = $token->getExpiration();
            if (
$expires < $this->now) {
               
$this->failure = 'This token has expired.';
                return
false;
            }
        } catch (
PasetoException $ex) {
           
$this->failure = $ex->getMessage();
            return
false;
        }
        return
true;
    }
}


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