125 lines
3.5 KiB
PHP
125 lines
3.5 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2014-2020 Spomky-Labs
|
|
*
|
|
* This software may be modified and distributed under the terms
|
|
* of the MIT license. See the LICENSE file for details.
|
|
*/
|
|
|
|
namespace Jose\Component\Signature;
|
|
|
|
use Exception;
|
|
use Jose\Component\Checker\HeaderCheckerManager;
|
|
use Jose\Component\Core\JWK;
|
|
use Jose\Component\Core\JWKSet;
|
|
use Jose\Component\Signature\Serializer\JWSSerializerManager;
|
|
use Throwable;
|
|
|
|
class JWSLoader
|
|
{
|
|
/**
|
|
* @var JWSVerifier
|
|
*/
|
|
private $jwsVerifier;
|
|
|
|
/**
|
|
* @var null|HeaderCheckerManager
|
|
*/
|
|
private $headerCheckerManager;
|
|
|
|
/**
|
|
* @var JWSSerializerManager
|
|
*/
|
|
private $serializerManager;
|
|
|
|
/**
|
|
* JWSLoader constructor.
|
|
*/
|
|
public function __construct(JWSSerializerManager $serializerManager, JWSVerifier $jwsVerifier, ?HeaderCheckerManager $headerCheckerManager)
|
|
{
|
|
$this->serializerManager = $serializerManager;
|
|
$this->jwsVerifier = $jwsVerifier;
|
|
$this->headerCheckerManager = $headerCheckerManager;
|
|
}
|
|
|
|
/**
|
|
* Returns the JWSVerifier associated to the JWSLoader.
|
|
*/
|
|
public function getJwsVerifier(): JWSVerifier
|
|
{
|
|
return $this->jwsVerifier;
|
|
}
|
|
|
|
/**
|
|
* Returns the Header Checker Manager associated to the JWSLoader.
|
|
*/
|
|
public function getHeaderCheckerManager(): ?HeaderCheckerManager
|
|
{
|
|
return $this->headerCheckerManager;
|
|
}
|
|
|
|
/**
|
|
* Returns the JWSSerializer associated to the JWSLoader.
|
|
*/
|
|
public function getSerializerManager(): JWSSerializerManager
|
|
{
|
|
return $this->serializerManager;
|
|
}
|
|
|
|
/**
|
|
* This method will try to load and verify the token using the given key.
|
|
* It returns a JWS and will populate the $signature variable in case of success, otherwise an exception is thrown.
|
|
*
|
|
* @throws Exception if the token cannot be loaded or verified
|
|
*/
|
|
public function loadAndVerifyWithKey(string $token, JWK $key, ?int &$signature, ?string $payload = null): JWS
|
|
{
|
|
$keyset = new JWKSet([$key]);
|
|
|
|
return $this->loadAndVerifyWithKeySet($token, $keyset, $signature, $payload);
|
|
}
|
|
|
|
/**
|
|
* This method will try to load and verify the token using the given key set.
|
|
* It returns a JWS and will populate the $signature variable in case of success, otherwise an exception is thrown.
|
|
*
|
|
* @throws Exception if the token cannot be loaded or verified
|
|
*/
|
|
public function loadAndVerifyWithKeySet(string $token, JWKSet $keyset, ?int &$signature, ?string $payload = null): JWS
|
|
{
|
|
try {
|
|
$jws = $this->serializerManager->unserialize($token);
|
|
$nbSignatures = $jws->countSignatures();
|
|
for ($i = 0; $i < $nbSignatures; ++$i) {
|
|
if ($this->processSignature($jws, $keyset, $i, $payload)) {
|
|
$signature = $i;
|
|
|
|
return $jws;
|
|
}
|
|
}
|
|
} catch (Throwable $e) {
|
|
// Nothing to do. Exception thrown just after
|
|
}
|
|
|
|
throw new Exception('Unable to load and verify the token.');
|
|
}
|
|
|
|
private function processSignature(JWS $jws, JWKSet $keyset, int $signature, ?string $payload): bool
|
|
{
|
|
try {
|
|
if (null !== $this->headerCheckerManager) {
|
|
$this->headerCheckerManager->check($jws, $signature);
|
|
}
|
|
|
|
return $this->jwsVerifier->verifyWithKeySet($jws, $keyset, $signature, $payload);
|
|
} catch (Throwable $e) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|