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<?php |
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namespace Silviooosilva\CacheerPhp\Helpers; |
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use InvalidArgumentException; |
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use RuntimeException; |
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class CacheerHelper |
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{ |
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/** |
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* Validates a cache item to ensure it contains the required keys. |
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* |
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* @param array $item |
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* @param callable|null $exceptionFactory |
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* @return void |
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*/ |
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public static function validateCacheItem(array $item, ?callable $exceptionFactory = null) |
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{ |
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if (!isset($item['cacheKey']) || !isset($item['cacheData'])) { |
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if ($exceptionFactory) { |
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throw $exceptionFactory("Each item must contain 'cacheKey' and 'cacheData'"); |
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} |
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throw new InvalidArgumentException("Each item must contain 'cacheKey' and 'cacheData'"); |
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} |
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} |
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/** |
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* Merges cache data with existing data. |
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* |
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* @param mixed $cacheData |
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* @return array |
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*/ |
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public static function mergeCacheData($cacheData) |
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{ |
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if (is_array($cacheData) && is_array(reset($cacheData))) { |
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$merged = []; |
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foreach ($cacheData as $data) { |
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$merged[] = $data; |
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} |
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return $merged; |
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} |
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return (array)$cacheData; |
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} |
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/** |
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* Generates an array identifier for cache data. |
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* |
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* @param mixed $currentCacheData |
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* @param mixed $cacheData |
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* @return array |
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*/ |
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public static function arrayIdentifier(mixed $currentCacheData, mixed $cacheData) |
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{ |
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if (is_array($currentCacheData) && is_array($cacheData)) { |
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return array_merge($currentCacheData, $cacheData); |
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} |
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return array_merge((array)$currentCacheData, (array)$cacheData); |
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} |
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/** |
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* Prepares data for storage, applying compression and/or encryption. |
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* |
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* @param mixed $data |
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* @param bool $compression |
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* @param string|null $encryptionKey |
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* @return mixed |
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*/ |
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public static function prepareForStorage(mixed $data, bool $compression = false, ?string $encryptionKey = null) |
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{ |
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if (!$compression && is_null($encryptionKey)) { |
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return $data; |
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} |
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$payload = serialize($data); |
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if ($compression) { |
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$payload = gzcompress($payload); |
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} |
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if (!is_null($encryptionKey)) { |
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$iv = substr(hash('sha256', $encryptionKey), 0, 16); |
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$encrypted = openssl_encrypt($payload, 'AES-256-CBC', $encryptionKey, 0, $iv); |
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if ($encrypted === false) { |
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throw new RuntimeException('Failed to encrypt cache data'); |
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} |
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$payload = $encrypted; |
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} |
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return $payload; |
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} |
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/** |
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* Recovers data from storage, applying decompression and/or decryption. |
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* |
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* @param mixed $data |
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* @param bool $compression |
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* @param string|null $encryptionKey |
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* @return mixed |
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*/ |
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public static function recoverFromStorage(mixed $data, bool $compression = false, ?string $encryptionKey = null) |
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{ |
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if (!$compression && is_null($encryptionKey)) { |
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return $data; |
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} |
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if (!is_null($encryptionKey)) { |
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$iv = substr(hash('sha256', $encryptionKey), 0, 16); |
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$decrypted = openssl_decrypt($data, 'AES-256-CBC', $encryptionKey, 0, $iv); |
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if ($decrypted === false) { |
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throw new RuntimeException('Failed to decrypt cache data'); |
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} |
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$data = $decrypted; |
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} |
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if ($compression) { |
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$data = gzuncompress($data); |
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} |
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return unserialize($data); |
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} |
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} |
silviooosilva /
CacheerPHP
