public static async Task SendFileAsync(
this HttpListenerResponse response,
FileInfo file)
{
if (file is null)
{
throw new ArgumentNullException(nameof(file));
}
if (!file.Exists)
{
throw new FileNotFoundException("File not found: " + file.FullName, file.FullName);
}
MediaType type = MediaType.Application_Octet_Stream;
var types = MediaType.GuessByFile(file);
if (types.Count > 0)
{
type = types[0];
}
response.SetFileName(type, file.Name);
using var input = file.OpenRead();
await response.SendStreamAsync(type, input)
.ConfigureAwait(false);
}
