Merge pull request #2267 from MediaBrowser/dev

Dev

1 files changed, 48 insertions, 0 deletions

diff --git a/Emby.Common.Implementations/TextEncoding/TextEncoding.cs b/Emby.Common.Implementations/TextEncoding/TextEncoding.cs
new file mode 100644
index 000000000..35b869e43
--- /dev/null
+++ b/Emby.Common.Implementations/TextEncoding/TextEncoding.cs
@@ -0,0 +1,48 @@
+using System.Text;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.TextEncoding;
+
+namespace Emby.Common.Implementations.TextEncoding
+{
+    public class TextEncoding : IEncoding
+    {
+        private readonly IFileSystem _fileSystem;
+
+        public TextEncoding(IFileSystem fileSystem)
+        {
+            _fileSystem = fileSystem;
+        }
+
+        public byte[] GetASCIIBytes(string text)
+        {
+            return Encoding.ASCII.GetBytes(text);
+        }
+
+        public string GetASCIIString(byte[] bytes, int startIndex, int length)
+        {
+            return Encoding.ASCII.GetString(bytes, 0, bytes.Length);
+        }
+
+        public Encoding GetFileEncoding(string srcFile)
+        {
+            // *** Detect byte order mark if any - otherwise assume default
+            var buffer = new byte[5];
+
+            using (var file = _fileSystem.OpenRead(srcFile))
+            {
+                file.Read(buffer, 0, 5);
+            }
+
+            if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
+                return Encoding.UTF8;
+            if (buffer[0] == 0xfe && buffer[1] == 0xff)
+                return Encoding.Unicode;
+            if (buffer[0] == 0 && buffer[1] == 0 && buffer[2] == 0xfe && buffer[3] == 0xff)
+                return Encoding.UTF32;
+            if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76)
+                return Encoding.UTF7;
+
+            return null;
+        }
+    }
+}