Jsq\CacheEncryption\OpenSslEncryptionTrait

Complexity

Total Complexity

7

Size/Duplication

Total Lines	52
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	1

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	1

9 Methods

Rating	Name	Duplication	Size	Complexity
A	get()	0	8	3
	isHit()	0	1	?
	getDecorated()	0	1	?
	encrypt()	0	1	?
	decrypt()	0	1	?
A	generateIv()	0	6	1
A	encryptString()	0	4	1
A	decryptString()	0	4	1
A	getCipherMethod()	0	4	1

<?php
namespace Jsq\CacheEncryption;

use Psr\Cache\CacheItemInterface;

trait OpenSslEncryptionTrait
{
    /** @var string */
    private $cipher;
    /** @var mixed */
    private $decrypted;

    public function get()
    {
        if (empty($this->decrypted) && $this->isHit()) {
            $this->decrypted = $this->decrypt($this->getDecorated()->get());
        }

        return $this->decrypted;
    }

    /**
     * @return bool
     */
    abstract public function isHit();

    /**
     * @return CacheItemInterface
     */
    abstract public function getDecorated();

    abstract protected function encrypt($data);

    abstract protected function decrypt($data);

    private function generateIv()
    {
        return openssl_random_pseudo_bytes(
            openssl_cipher_iv_length($this->cipher)
        );
    }

    private function encryptString($string, $key, $iv)
    {
        return openssl_encrypt($string, $this->cipher, $key, 0, $iv);
    }

    private function decryptString($string, $method, $key, $iv)
    {
        return openssl_decrypt($string, $method, $key, 0, $iv);
    }

    private function getCipherMethod()
    {
        return $this->cipher;
    }
}