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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) 2014-2016 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\Util; |
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use Base64Url\Base64Url; |
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use Jose\Object\JWE; |
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use Jose\Object\JWEInterface; |
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use Jose\Object\Recipient; |
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use Jose\Object\RecipientInterface; |
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final class JWELoader |
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{ |
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/** |
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* @param array $data |
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* |
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* @return \Jose\Object\JWEInterface |
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*/ |
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public static function loadSerializedJsonJWE(array $data) |
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{ |
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$jwe = new JWE(); |
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$jwe = $jwe->withCiphertext(Base64Url::decode($data['ciphertext'])); |
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self::populateIV($jwe, $data); |
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self::populateAAD($jwe, $data); |
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self::populateTag($jwe, $data); |
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self::populateSharedProtectedHeaders($jwe, $data); |
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self::populateSharedHeaders($jwe, $data); |
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foreach ($data['recipients'] as $recipient) { |
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$object = new Recipient(); |
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self::populateRecipientHeaders($object, $recipient); |
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self::populateRecipientEncryptedKey($object, $recipient); |
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$jwe = $jwe->addRecipient($object); |
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} |
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return $jwe; |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param array $data |
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*/ |
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private static function populateIV(JWEInterface &$jwe, array $data) |
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{ |
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if (array_key_exists('iv', $data)) { |
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$jwe = $jwe->withIV(Base64Url::decode($data['iv'])); |
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} |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param array $data |
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*/ |
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private static function populateAAD(JWEInterface &$jwe, array $data) |
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{ |
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if (array_key_exists('aad', $data)) { |
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$jwe = $jwe->withAAD(Base64Url::decode($data['aad'])); |
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} |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param array $data |
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*/ |
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private static function populateTag(JWEInterface &$jwe, array $data) |
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{ |
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if (array_key_exists('tag', $data)) { |
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$jwe = $jwe->withTag(Base64Url::decode($data['tag'])); |
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} |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param array $data |
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*/ |
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private static function populateSharedProtectedHeaders(JWEInterface &$jwe, array $data) |
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{ |
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if (array_key_exists('protected', $data)) { |
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$jwe = $jwe->withEncodedSharedProtectedHeaders($data['protected']); |
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$jwe = $jwe->withSharedProtectedHeaders(json_decode(Base64Url::decode($data['protected']), true)); |
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} |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param array $data |
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*/ |
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private static function populateSharedHeaders(JWEInterface &$jwe, array $data) |
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{ |
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if (array_key_exists('unprotected', $data)) { |
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$jwe = $jwe->withSharedHeaders($data['unprotected']); |
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} |
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} |
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/** |
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* @param \Jose\Object\RecipientInterface $recipient |
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* @param array $data |
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*/ |
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private static function populateRecipientHeaders(RecipientInterface &$recipient, array $data) |
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{ |
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if (array_key_exists('header', $data)) { |
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$recipient = $recipient->withHeaders($data['header']); |
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} |
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} |
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/** |
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* @param \Jose\Object\RecipientInterface $recipient |
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* @param array $data |
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*/ |
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private static function populateRecipientEncryptedKey(RecipientInterface &$recipient, array $data) |
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{ |
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if (array_key_exists('encrypted_key', $data)) { |
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$recipient = $recipient->withEncryptedKey(Base64Url::decode($data['encrypted_key'])); |
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} |
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} |
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} |
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Spomky-Labs /
jose
