/**
* Create an instance from a file.
* @param string $file a path to a file
* @param string $name optional name to serve the file with
* @param string $hash optional string to use as ETag
* @param string $cached optional strtotime expression used for caching validity
* @return \vakata\http\Response the response instance
* @codeCoverageIgnore
*/
public static function fromFile($file, $name = null, $hash = null, $cached = null)
{
$res = new self();
$name = $name ?: basename($file);
$size = filesize($file);
if ($name) {
$extension = substr($name, strrpos($name, '.') + 1);
if ($extension) {
$res->setContentTypeByExtension($extension);
}
$res->setHeader('Last-Modified', gmdate('D, d M Y H:i:s', filemtime($file)) . ' GMT');
if ($hash !== null) {
$res->setHeader('ETag', $hash);
}
if ($cached !== null) {
$res->cacheUntil($cached);
}
$disposition = in_array(strtolower($extension), ['txt', 'png', 'jpg', 'gif', 'jpeg', 'html', 'htm', 'mp3', 'mp4']) ? 'inline' : 'attachment';
$res->setHeader('Content-Disposition', $disposition . '; ' . 'filename="' . preg_replace('([^a-z0-9.-]+)i', '_', $name) . '"; ' . 'filename*=UTF-8\'\'' . rawurlencode($name) . '; ' . 'size=' . (string) $size);
$res->setHeader('Content-Length', (string) $size);
}
$res->setBody(fopen($file, 'r'));
return $res;
}
