function advagg_missing_file_transfer in Advanced CSS/JS Aggregation 7

Same name and namespace in other branches

1. 6 advagg.missing.inc \advagg_missing_file_transfer()

Transfer file using http to client. Pipes a file through Drupal to the client.

Parameters

$source File to transfer.:

$headers An array of http headers to send along with file.:

1 call to advagg_missing_file_transfer()

advagg_missing_send_file in includes/missing.inc

Send the file or send a 307 redirect.

File

includes/missing.inc, line 285

Advanced aggregation module; 404 handler.

Code

function advagg_missing_file_transfer($source, $headers) {
  $source = advagg_missing_file_create_path($source);
  $fd = fopen($source, 'rb');

  // Return if we can't open the file. Will try a 307 in browser to send file.
  if (!$fd) {
    return;
  }

  // Clear the buffer.
  if (ob_get_level()) {
    ob_end_clean();
  }

  // Add in headers.
  foreach ($headers as $header) {

    // To prevent HTTP header injection, we delete new lines that are
    // not followed by a space or a tab.
    // See http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2
    $header = preg_replace('/\\r?\\n(?!\\t| )/', '', $header);
    drupal_add_http_header($header);
  }

  // Transfer file in 8096 byte chunks.
  while (!feof($fd)) {
    print fread($fd, 8096);
  }
  fclose($fd);
  exit;
}