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KretaWeb/Helpers/HttpResponseExtensions.cs

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+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Net.Mime;
+using System.Text;
+using System.Web;
+using Kreta.BusinessLogic.Classes;
+
+namespace Kreta.Web.Helpers
+{
+    public static class HttpResponseExtensions
+    {
+        public static HttpResponseMessage GetFileHttpResponse(byte[] content, string fileName)
+        {
+            var result = new HttpResponseMessage(HttpStatusCode.OK)
+            {
+                Content = new ByteArrayContent(content)
+            };
+
+            result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
+            {
+                FileName = HttpUtility.UrlEncode(fileName.ToComparableString(), Encoding.UTF8)
+            };
+
+            result.Content.Headers.ContentType = new MediaTypeHeaderValue(MediaTypeNames.Application.Octet);
+
+            return result;
+        }
+    }
+}