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Differences Between: [Versions 311 and 402] [Versions 311 and 403]

   1  <?php
   2  declare(strict_types=1);
   3  
   4  namespace ZipStream;
   5  
   6  class DeflateStream extends Stream
   7  {
   8      protected $filter;
   9  
  10      /**
  11       * @var Option\File
  12       */
  13      protected $options;
  14  
  15      /**
  16       * Rewind stream
  17       *
  18       * @return void
  19       */
  20      public function rewind(): void
  21      {
  22          // deflate filter needs to be removed before rewind
  23          if ($this->filter) {
  24              $this->removeDeflateFilter();
  25              $this->seek(0);
  26              $this->addDeflateFilter($this->options);
  27          } else {
  28              rewind($this->stream);
  29          }
  30      }
  31  
  32      /**
  33       * Remove the deflate filter
  34       *
  35       * @return void
  36       */
  37      public function removeDeflateFilter(): void
  38      {
  39          if (!$this->filter) {
  40              return;
  41          }
  42          stream_filter_remove($this->filter);
  43          $this->filter = null;
  44      }
  45  
  46      /**
  47       * Add a deflate filter
  48       *
  49       * @param Option\File $options
  50       * @return void
  51       */
  52      public function addDeflateFilter(Option\File $options): void
  53      {
  54          $this->options = $options;
  55          // parameter 4 for stream_filter_append expects array
  56          // so we convert the option object in an array
  57          $optionsArr = [
  58              'comment' => $options->getComment(),
  59              'method' => $options->getMethod(),
  60              'deflateLevel' => $options->getDeflateLevel(),
  61              'time' => $options->getTime()
  62          ];
  63          $this->filter = stream_filter_append(
  64              $this->stream,
  65              'zlib.deflate',
  66              STREAM_FILTER_READ,
  67              $optionsArr
  68          );
  69      }
  70  }