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   1  <?php
   2  /**
   3   * This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS
   4   *
   5   * @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
   6   */
   7  
   8  namespace Lcobucci\JWT\Signer;
   9  
  10  use Exception;
  11  use InvalidArgumentException;
  12  use Lcobucci\JWT\Signer\Key\FileCouldNotBeRead;
  13  use SplFileObject;
  14  
  15  use function strpos;
  16  use function substr;
  17  
  18  /**
  19   * @author Luís Otávio Cobucci Oblonczyk <[email protected]>
  20   * @since 3.0.4
  21   */
  22  class Key
  23  {
  24      /**
  25       * @var string
  26       */
  27      protected $content;
  28  
  29      /**
  30       * @var string
  31       */
  32      private $passphrase;
  33  
  34      /**
  35       * @param string $content
  36       * @param string $passphrase
  37       */
  38      public function __construct($content, $passphrase = '')
  39      {
  40          $this->setContent($content);
  41          $this->passphrase = $passphrase;
  42      }
  43  
  44      /**
  45       * @param string $content
  46       *
  47       * @throws InvalidArgumentException
  48       */
  49      private function setContent($content)
  50      {
  51          if (strpos($content, 'file://') === 0) {
  52              $content = $this->readFile($content);
  53          }
  54  
  55          $this->content = $content;
  56      }
  57  
  58      /**
  59       * @param string $content
  60       *
  61       * @return string
  62       *
  63       * @throws InvalidArgumentException
  64       */
  65      private function readFile($content)
  66      {
  67          $path = substr($content, 7);
  68  
  69          try {
  70              $file = new SplFileObject($path);
  71          } catch (Exception $exception) {
  72              throw FileCouldNotBeRead::onPath($path, $exception);
  73          }
  74  
  75          $content = '';
  76  
  77          while (! $file->eof()) {
  78              $content .= $file->fgets();
  79          }
  80  
  81          return $content;
  82      }
  83  
  84      /** @return string */
  85      public function contents()
  86      {
  87          return $this->content;
  88      }
  89  
  90      /** @return string */
  91      public function passphrase()
  92      {
  93          return $this->passphrase;
  94      }
  95  
  96      /**
  97       * @deprecated This method is no longer part of the public interface
  98       * @see Key::contents()
  99       *
 100       * @return string
 101       */
 102      public function getContent()
 103      {
 104          return $this->content;
 105      }
 106  
 107      /**
 108       * @deprecated This method is no longer part of the public interface
 109       * @see Key::passphrase()
 110       *
 111       * @return string
 112       */
 113      public function getPassphrase()
 114      {
 115          return $this->passphrase;
 116      }
 117  }