public void MimeTypeReverseMappingUnavailable()
{
var original = "image/foobar";
var extension = MimeTypeNames.GetExtension(original);
Assert.AreEqual("", extension);
}
/// <summary>
/// Gets the filename of the content-disposition header or
/// alternatively via a path analysis together with the MIME type.
/// </summary>
/// <param name="response">The response to extend.</param>
/// <returns>The determined file name.</returns>
public static String GetAttachedFileName(this IResponse response)
{
var dispositionFileName = default(String);
if (response.Headers.TryGetValue(HeaderNames.ContentDisposition, out var disposition))
{
dispositionFileName = GetFileNameFromDisposition(disposition);
}
var filename = dispositionFileName ?? response.Address.Path.Split('/').LastOrDefault() ?? "_";
var standardExtension = Path.GetExtension(filename);
if (String.IsNullOrEmpty(standardExtension))
{
var type = response.GetContentType(MimeTypeNames.Binary).Content;
var extension = MimeTypeNames.GetExtension(type);
return(filename + extension);
}
return(filename);
}
