How can i download a file without file name and file extension in the url

Question

My problem is that I dont Know how i can download a File withknowing the file name or the file extension in the url, like this http://findicons.com/icon/download/235456/internet

Answer 1

It's possible to get the filename since the server is sending the Content-Disposition header. Here's a code example on how to get the filename using the HttpClient class:

var url = "http://findicons.com/icon/download/235456/internet_download/128/png?id=235724";

using (var client = new HttpClient())
using (var response = await client.GetAsync(url))
{
    // make sure our request was successful
    response.EnsureSuccessStatusCode();

    // read the filename from the Content-Disposition header
    var filename = response.Content.Headers.ContentDisposition.FileName;

    // read the downloaded file data
    var stream = await response.Content.ReadAsStreamAsync();

    // Where you want the file to be saved
    var destinationFile = Path.Combine("C:\\local\\directory", filename);

    // write the steam content into a file
    using (var fileStream = File.Create(destinationFile))
    {
        stream.CopyTo(fileStream);
    }
}