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<?php
declare(strict_types=1);
namespace Lcobucci\JWT\Signer\Key;
use Lcobucci\JWT\Signer\InvalidKeyProvided;
use Lcobucci\JWT\Signer\Key;
use Lcobucci\JWT\SodiumBase64Polyfill;
use SplFileObject;
use Throwable;
use function assert;
use function is_string;
final class InMemory implements Key
{
/** @param non-empty-string $contents */
private function __construct(public readonly string $contents, public readonly string $passphrase)
{
}
/** @param non-empty-string $contents */
public static function plainText(string $contents, string $passphrase = ''): self
{
self::guardAgainstEmptyKey($contents);
return new self($contents, $passphrase);
}
/** @param non-empty-string $contents */
public static function base64Encoded(string $contents, string $passphrase = ''): self
{
$decoded = SodiumBase64Polyfill::base642bin(
$contents,
SodiumBase64Polyfill::SODIUM_BASE64_VARIANT_ORIGINAL,
);
self::guardAgainstEmptyKey($decoded);
return new self($decoded, $passphrase);
}
/**
* @param non-empty-string $path
*
* @throws FileCouldNotBeRead
*/
public static function file(string $path, string $passphrase = ''): self
{
try {
$file = new SplFileObject($path);
} catch (Throwable $exception) {
throw FileCouldNotBeRead::onPath($path, $exception);
}
$fileSize = $file->getSize();
$contents = $fileSize > 0 ? $file->fread($file->getSize()) : '';
assert(is_string($contents));
self::guardAgainstEmptyKey($contents);
return new self($contents, $passphrase);
}
/** @phpstan-assert non-empty-string $contents */
private static function guardAgainstEmptyKey(string $contents): void
{
if ($contents === '') {
throw InvalidKeyProvided::cannotBeEmpty();
}
}
public function contents(): string
{
return $this->contents;
}
public function passphrase(): string
{
return $this->passphrase;
}
}