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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2017 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\Component\Signature; |
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/** |
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* Class JWSConverter |
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*/ |
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final class JWSConverter |
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{ |
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/** |
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* @param string $input |
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* |
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* @return array |
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*/ |
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public static function convert(string $input): array |
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{ |
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$data = json_decode($input, true); |
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if (is_array($data)) { |
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if (array_key_exists('signatures', $data)) { |
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return $data; |
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} elseif (array_key_exists('signature', $data)) { |
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return self::fromFlattenedSerializationSignatureToSerialization($data); |
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} |
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} elseif (is_string($input)) { |
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return self::fromCompactSerializationToSerialization($input); |
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} |
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throw new \InvalidArgumentException('Unsupported input'); |
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} |
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/** |
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* @param array $input |
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* |
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* @return array |
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*/ |
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private static function fromFlattenedSerializationSignatureToSerialization(array $input): array |
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{ |
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$signature = [ |
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'signature' => $input['signature'], |
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]; |
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foreach (['protected', 'header'] as $key) { |
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if (array_key_exists($key, $input)) { |
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$signature[$key] = $input[$key]; |
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} |
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} |
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$temp = []; |
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if (!empty($input['payload'])) { |
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$temp['payload'] = $input['payload']; |
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} |
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$temp['signatures'] = [$signature]; |
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return $temp; |
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} |
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/** |
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* @param string $input |
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* |
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* @return array |
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*/ |
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private static function fromCompactSerializationToSerialization(string $input): array |
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{ |
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$parts = explode('.', $input); |
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switch (count($parts)) { |
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case 3: |
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return self::fromCompactSerializationSignatureToSerialization($parts); |
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default: |
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throw new \InvalidArgumentException('Unsupported input'); |
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} |
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} |
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/** |
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* @param array $parts |
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* |
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* @return array |
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*/ |
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private static function fromCompactSerializationSignatureToSerialization(array $parts): array |
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{ |
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$temp = []; |
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if (!empty($parts[1])) { |
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$temp['payload'] = $parts[1]; |
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} |
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$temp['signatures'] = [[ |
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'protected' => $parts[0], |
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'signature' => $parts[2], |
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]]; |
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return $temp; |
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} |
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} |
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Spomky-Labs /
jose
