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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  /*
   6   * The MIT License (MIT)
   7   *
   8   * Copyright (c) 2014-2020 Spomky-Labs
   9   *
  10   * This software may be modified and distributed under the terms
  11   * of the MIT license.  See the LICENSE file for details.
  12   */
  13  
  14  namespace Jose\Component\Signature\Serializer;
  15  
  16  use InvalidArgumentException;
  17  use Jose\Component\Signature\JWS;
  18  
  19  class JWSSerializerManager
  20  {
  21      /**
  22       * @var JWSSerializer[]
  23       */
  24      private $serializers = [];
  25  
  26      /**
  27       * @param JWSSerializer[] $serializers
  28       */
  29      public function __construct(array $serializers)
  30      {
  31          foreach ($serializers as $serializer) {
  32              $this->add($serializer);
  33          }
  34      }
  35  
  36      /**
  37       * @return string[]
  38       */
  39      public function list(): array
  40      {
  41          return array_keys($this->serializers);
  42      }
  43  
  44      /**
  45       * Converts a JWS into a string.
  46       *
  47       * @throws InvalidArgumentException if the serializer is not supported
  48       */
  49      public function serialize(string $name, JWS $jws, ?int $signatureIndex = null): string
  50      {
  51          if (!isset($this->serializers[$name])) {
  52              throw new InvalidArgumentException(sprintf('Unsupported serializer "%s".', $name));
  53          }
  54  
  55          return $this->serializers[$name]->serialize($jws, $signatureIndex);
  56      }
  57  
  58      /**
  59       * Loads data and return a JWS object.
  60       *
  61       * @param string      $input A string that represents a JWS
  62       * @param null|string $name  the name of the serializer if the input is unserialized
  63       *
  64       * @throws InvalidArgumentException if the input is not supported
  65       */
  66      public function unserialize(string $input, ?string &$name = null): JWS
  67      {
  68          foreach ($this->serializers as $serializer) {
  69              try {
  70                  $jws = $serializer->unserialize($input);
  71                  $name = $serializer->name();
  72  
  73                  return $jws;
  74              } catch (InvalidArgumentException $e) {
  75                  continue;
  76              }
  77          }
  78  
  79          throw new InvalidArgumentException('Unsupported input.');
  80      }
  81  
  82      private function add(JWSSerializer $serializer): void
  83      {
  84          $this->serializers[$serializer->name()] = $serializer;
  85      }
  86  }