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<?php |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2015 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Jose; |
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use Base64Url\Base64Url; |
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use Jose\Algorithm\JWAManagerInterface; |
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use Jose\Behaviour\HasCheckerManager; |
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use Jose\Behaviour\HasCompressionManager; |
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use Jose\Behaviour\HasJWAManager; |
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use Jose\Behaviour\HasJWKFinderManager; |
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use Jose\Behaviour\HasKeyChecker; |
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use Jose\Behaviour\HasPayloadConverter; |
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use Jose\Checker\CheckerManagerInterface; |
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use Jose\Compression\CompressionManagerInterface; |
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use Jose\Finder\JWKFinderManagerInterface; |
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use Jose\Object\JWE; |
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use Jose\Object\JWS; |
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use Jose\Payload\PayloadConverterManagerInterface; |
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use Jose\Util\Converter; |
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/** |
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* Class able to load JWS or JWE. |
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* JWS object can also be verified. |
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*/ |
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final class Loader implements LoaderInterface |
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{ |
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use HasKeyChecker; |
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use HasJWAManager; |
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use HasJWKFinderManager; |
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use HasCheckerManager; |
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use HasPayloadConverter; |
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use HasCompressionManager; |
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/** |
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* Loader constructor. |
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* |
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* @param \Jose\Algorithm\JWAManagerInterface $jwa_manager |
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* @param \Jose\Finder\JWKFinderManagerInterface $jwk_finder_manager |
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* @param \Jose\Payload\PayloadConverterManagerInterface $payload_converter_manager |
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* @param \Jose\Compression\CompressionManagerInterface $compression_manager |
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* @param \Jose\Checker\CheckerManagerInterface $checker_manager |
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*/ |
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public function __construct( |
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JWAManagerInterface $jwa_manager, |
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JWKFinderManagerInterface $jwk_finder_manager, |
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PayloadConverterManagerInterface $payload_converter_manager, |
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CompressionManagerInterface $compression_manager, |
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CheckerManagerInterface $checker_manager) |
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{ |
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$this->setJWAManager($jwa_manager); |
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$this->setJWKFinderManager($jwk_finder_manager); |
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$this->setPayloadConverter($payload_converter_manager); |
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$this->setCompressionManager($compression_manager); |
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$this->setCheckerManager($checker_manager); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function load($input) |
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{ |
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$json = Converter::convert($input, JSONSerializationModes::JSON_SERIALIZATION, false); |
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if (is_array($json)) { |
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if (array_key_exists('signatures', $json)) { |
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return $this->loadSerializedJsonJWS($json, $input); |
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} |
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if (array_key_exists('recipients', $json)) { |
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return $this->loadSerializedJsonJWE($json, $input); |
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} |
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} |
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throw new \InvalidArgumentException('Unable to load the input'); |
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} |
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/** |
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* @param array $data |
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* @param string $input |
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* |
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* @return \Jose\Object\JWSInterface|\Jose\Object\JWSInterface[] |
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*/ |
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private function loadSerializedJsonJWS(array $data, $input) |
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{ |
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$encoded_payload = isset($data['payload']) ? $data['payload'] : ''; |
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$payload = Base64Url::decode($encoded_payload); |
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$jws = []; |
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foreach ($data['signatures'] as $signature) { |
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if (array_key_exists('protected', $signature)) { |
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$encoded_protected_header = $signature['protected']; |
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$protected_header = json_decode(Base64Url::decode($encoded_protected_header), true); |
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} else { |
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$encoded_protected_header = null; |
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$protected_header = []; |
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} |
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$unprotected_header = isset($signature['header']) ? $signature['header'] : []; |
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$result = $this->createJWS($encoded_protected_header, $encoded_payload, $protected_header, $unprotected_header, $payload, Base64Url::decode($signature['signature'])); |
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$result = $result->withInput($input); |
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$jws[] = $result; |
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} |
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return count($jws) > 1 ? $jws : current($jws); |
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} |
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/** |
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* @param string $encoded_protected_header |
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* @param string $encoded_payload |
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* @param array $protected_header |
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* @param array $unprotected_header |
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* @param string $payload |
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* @param string $signature |
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* |
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* @throws \Exception |
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* |
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* @return \Jose\Object\JWSInterface |
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*/ |
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private function createJWS($encoded_protected_header, $encoded_payload, $protected_header, $unprotected_header, $payload, $signature) |
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{ |
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$complete_header = array_merge($protected_header, $unprotected_header); |
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$payload = $this->getPayloadConverter()->convertStringToPayload($complete_header, $payload); |
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$jws = new JWS(); |
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$jws = $jws->withSignature($signature); |
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$jws = $jws->withPayload($payload); |
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$jws = $jws->withEncodedProtectedHeaders($encoded_protected_header); |
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$jws = $jws->withEncodedPayload($encoded_payload); |
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if (!empty($protected_header)) { |
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$jws = $jws->withProtectedHeaders($protected_header); |
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} |
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if (!empty($unprotected_header)) { |
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$jws = $jws->withUnprotectedHeaders($unprotected_header); |
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} |
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return $jws; |
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} |
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/** |
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* @param array $data |
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* @param string $input |
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* |
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* @return \Jose\Object\JWEInterface|\Jose\Object\JWEInterface[] |
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*/ |
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private function loadSerializedJsonJWE(array $data, $input) |
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{ |
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$result = []; |
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foreach ($data['recipients'] as $recipient) { |
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$encoded_protected_header = array_key_exists('protected', $data) ? $data['protected'] : ''; |
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$protected_header = empty($encoded_protected_header) ? [] : json_decode(Base64Url::decode($encoded_protected_header), true); |
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$unprotected_header = array_key_exists('unprotected', $data) ? $data['unprotected'] : []; |
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$header = array_key_exists('header', $recipient) ? $recipient['header'] : []; |
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$jwe = new JWE(); |
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$jwe = $jwe->withAAD(array_key_exists('aad', $data) ? Base64Url::decode($data['aad']) : null); |
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$jwe = $jwe->withCiphertext(Base64Url::decode($data['ciphertext'])); |
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$jwe = $jwe->withEncryptedKey(array_key_exists('encrypted_key', $recipient) ? Base64Url::decode($recipient['encrypted_key']) : null); |
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$jwe = $jwe->withIV(array_key_exists('iv', $data) ? Base64Url::decode($data['iv']) : null); |
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$jwe = $jwe->withTag(array_key_exists('tag', $data) ? Base64Url::decode($data['tag']) : null); |
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$jwe = $jwe->withProtectedHeaders($protected_header); |
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$jwe = $jwe->withEncodedProtectedHeaders($encoded_protected_header); |
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$jwe = $jwe->withUnprotectedHeaders(array_merge($unprotected_header, $header)); |
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$jwe = $jwe->withInput($input); |
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$result[] = $jwe; |
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} |
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return count($result) > 1 ? $result : current($result); |
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} |
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} |
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Spomky-Labs /
jose
