Reading gzip'ed websites

To reduce bandwidth some servers have their content zipped using solutions such as Apache's mod_deflate. This is done only if the Accept-Encoding request header contains the string gzip. Combining the XP Framework's peer.http API with the new io.streams.GzDecompressingInputStream one can accomplish this compression:

  $conn= new HttpConnection($args[0]);
  $response= $conn->get(array(), array('Accept-Encoding' => 'gzip'));
  
  if ('gzip' == $response->getHeader('Content-Encoding')) {
    $in= new GzDecompressingInputStream($r->getInputStream());
  } else {
    $in= $r->getInputStream();
  }
  
  // Now read $in as with any other stream...

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