Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Mobile/UI/MobileControls/Design/Util/FileReader.cs

@@ -0,0 +1,55 @@
+//------------------------------------------------------------------------------
+// <copyright file="FileReader.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.Design.MobileControls.Util
+{
+    using System;
+    using System.Diagnostics;
+    using System.Net;
+    using System.IO;
+
+    [
+        System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand,
+        Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
+    ]
+    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
+    internal class FileReader
+    {
+        // Helper class should not be instantiated.
+        private FileReader() {
+        }
+
+        /// <summary>
+        ///    This method reads a file specified by a uri and returns it
+        ///    as a byte array.  If the file is located on the local file
+        ///    system, a FileStream is used instead of a WebRequest.
+        /// </summary>
+        internal static Byte[] Read(Uri uri)
+        {
+            int length;
+            Stream stream;
+
+            Byte[] buffer = null;
+            try
+            {
+                WebRequest request = WebRequest.Create(uri);
+                WebResponse response = request.GetResponse();
+                length = (int) response.ContentLength;
+                stream = response.GetResponseStream();
+                buffer = new Byte[length];
+                stream.Read(buffer, 0, length);
+                stream.Close();
+            }
+            catch(Exception e)
+            {
+                Debug.Fail("FileReader - Unable to read url '"
+                    + uri.ToString() + ":\r\n" + e.ToString());
+                return null;
+            }
+            return buffer;
+        }
+    }
+}