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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\Object; |
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use Assert\Assertion; |
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use Base64Url\Base64Url; |
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/** |
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* Class JWS. |
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*/ |
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final class JWS implements JWSInterface |
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{ |
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use JWT; |
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/** |
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* @var \Jose\Object\SignatureInterface[] |
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*/ |
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private $signatures = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getEncodedPayload() |
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{ |
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$payload = $this->getPayload(); |
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if (null === $payload) { |
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return; |
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} elseif (is_string($payload)) { |
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return Base64Url::encode($payload); |
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} |
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$encoded = json_encode($payload); |
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Assertion::notNull($encoded, 'Unsupported payload.'); |
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return Base64Url::encode($encoded); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getSignatures() |
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{ |
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return $this->signatures; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function &getSignature($id) |
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{ |
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if (isset($this->signatures[$id])) { |
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return $this->signatures[$id]; |
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} |
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throw new \InvalidArgumentException('The signature does not exist.'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addSignature(JWKInterface $signature_key, array $protected_headers, array $headers = []) |
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{ |
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$jws = clone $this; |
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$jws->signatures[] = Signature::createSignature($signature_key, $protected_headers, $headers); |
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return $jws; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addSignatureFromLoadedData($signature, $encoded_protected_headers, array $headers) |
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{ |
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$jws = clone $this; |
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$jws->signatures[] = Signature::createSignatureFromLoadedData($signature, $encoded_protected_headers, $headers); |
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return $jws; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function countSignatures() |
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{ |
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return count($this->signatures); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toCompactJSON($id) |
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{ |
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$signature = $this->getSignature($id); |
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Assertion::true( |
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empty($signature->getHeaders()), |
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'The signature contains unprotected headers and cannot be converted into compact JSON' |
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); |
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return sprintf( |
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'%s.%s.%s', |
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$signature->getEncodedProtectedHeaders(), |
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$this->getEncodedPayload(), |
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Base64Url::encode($signature->getSignature()) |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toFlattenedJSON($id) |
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{ |
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$signature = $this->getSignature($id); |
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$data = []; |
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$values = [ |
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'payload' => $this->getEncodedPayload(), |
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'protected' => $signature->getEncodedProtectedHeaders(), |
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'header' => $signature->getHeaders(), |
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]; |
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foreach ($values as $key => $value) { |
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if (!empty($value)) { |
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$data[$key] = $value; |
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} |
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} |
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$data['signature'] = Base64Url::encode($signature->getSignature()); |
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return json_encode($data); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toJSON() |
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{ |
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Assertion::greaterThan($this->countSignatures(), 0, 'No signature.'); |
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$data = []; |
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if (!empty($this->getEncodedPayload())) { |
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$data['payload'] = $this->getEncodedPayload(); |
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} |
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$data['signatures'] = []; |
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foreach ($this->getSignatures() as $signature) { |
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$tmp = ['signature' => Base64Url::encode($signature->getSignature())]; |
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$values = [ |
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'protected' => $signature->getEncodedProtectedHeaders(), |
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'header' => $signature->getHeaders(), |
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]; |
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foreach ($values as $key => $value) { |
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if (!empty($value)) { |
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$tmp[$key] = $value; |
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} |
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} |
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$data['signatures'][] = $tmp; |
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} |
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return json_encode($data); |
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} |
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} |
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Spomky-Labs /
jose
