Trying to stream a PDF file with asp.net is producing a “damaged file”

Question

In one of my asp.net web applications I need to hide the location of a pdf file being served to the users.

Thus, I am writing a method that retrieves its binary con

Answer 1

This snippet includes the code for reading in the file from a file path, and extracting out the file name:

private void DownloadFile(string path)
{
    using (var file = System.IO.File.Open(path, FileMode.Open))
    {
        var buffer = new byte[file.Length];
        file.Read(buffer, 0, (int)file.Length);

        var fileName = GetFileName(path);
        WriteFileToOutputStream(fileName, buffer);
    }
}

private string GetFileName(string path)
{
    var fileNameSplit = path.Split('\\');
    var fileNameSplitLength = fileNameSplit.Length;
    var fileName = fileNameSplit[fileNameSplitLength - 1].Split('.')[0];
    return fileName;
}

private void WriteFileToOutputStream(string fileName, byte[] buffer)
{
    Response.Clear();
    Response.ContentType = "application/pdf";
    Response.AddHeader("Content-Disposition",
        $"attachment; filename\"{fileName}.pdf");
    Response.OutputStream.Write(buffer, 0, buffer.Length);
    Response.OutputStream.Close();
    Response.Flush();
    Response.End();
}