protected function assets($uri, $response)
{
$uri = str_replace(['\\', '../'], ['/', '/'], $uri);
$rPos = strrpos($uri, '.');
if (false === $rPos) {
# 没有任何后缀
$response->status(404);
$response->end('assets not found');
return;
}
$type = strtolower(substr($uri, $rPos + 1));
$header = ['js' => 'application/x-javascript', 'css' => 'text/css', 'png' => 'image/png', 'jpg' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'gif' => 'image/gif', 'json' => 'application/json', 'svg' => 'image/svg+xml', 'woff' => 'application/font-woff', 'woff2' => 'application/font-woff2', 'ttf' => 'application/x-font-ttf', 'eot' => 'application/vnd.ms-fontobject', 'html' => 'text/html'];
if (isset($header[$type])) {
$response->header('Content-Type', $header[$type]);
}
$file = __DIR__ . '/../../../../assets/' . $uri;
if (is_file($file)) {
# 设置缓存头信息
$time = 86400;
$response->header('Cache-Control', 'max-age=' . $time);
$response->header('Pragma', 'cache');
$response->header('Last-Modified', date('D, d M Y H:i:s \\G\\M\\T', filemtime($file)));
$response->header('Expires', date('D, d M Y H:i:s \\G\\M\\T', time() + $time));
# 直接发送文件
$response->sendfile($file);
} else {
$response->status(404);
$response->end('assets not found');
}
}
