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| 1 | +using System.Text; |
| 2 | +using System.IO; |
| 3 | + |
| 4 | +namespace RestSharp.Portable |
| 5 | +{ |
| 6 | + /// <summary> |
| 7 | + /// Extensions for <see cref="RestResponse"/> |
| 8 | + /// </summary> |
| 9 | + public static class RestResponseExtensions |
| 10 | + { |
| 11 | + /// <summary> |
| 12 | + /// Converts a byte array to a string, using its byte order mark to convert it to the right encoding. |
| 13 | + /// http://www.shrinkrays.net/code-snippets/csharp/an-extension-method-for-converting-a-byte-array-to-a-string.aspx |
| 14 | + /// </summary> |
| 15 | + /// <param name="buffer">An array of bytes to convert</param> |
| 16 | + /// <returns>The byte as a string.</returns> |
| 17 | + public static string AsString(this byte[] buffer) |
| 18 | + { |
| 19 | + if (buffer == null) |
| 20 | + { |
| 21 | + return ""; |
| 22 | + } |
| 23 | + |
| 24 | + // Ansi as default |
| 25 | + Encoding encoding = Encoding.UTF8; |
| 26 | + |
| 27 | +#if !PCL |
| 28 | + return encoding.GetString(buffer, 0, buffer.Length); |
| 29 | +#else |
| 30 | + if (buffer.Length == 0) |
| 31 | + return ""; |
| 32 | + |
| 33 | + /* |
| 34 | + EF BB BF UTF-8 |
| 35 | + FF FE UTF-16 little endian |
| 36 | + FE FF UTF-16 big endian |
| 37 | + FF FE 00 00 UTF-32, little endian |
| 38 | + 00 00 FE FF UTF-32, big-endian |
| 39 | + */ |
| 40 | + |
| 41 | + if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf) |
| 42 | + { |
| 43 | + encoding = Encoding.UTF8; |
| 44 | + } |
| 45 | + else if (buffer[0] == 0xfe && buffer[1] == 0xff) |
| 46 | + { |
| 47 | + encoding = Encoding.Unicode; |
| 48 | + } |
| 49 | + else if (buffer[0] == 0xfe && buffer[1] == 0xff) |
| 50 | + { |
| 51 | + encoding = Encoding.BigEndianUnicode; // utf-16be |
| 52 | + } |
| 53 | + |
| 54 | + using (MemoryStream stream = new MemoryStream()) |
| 55 | + { |
| 56 | + stream.Write(buffer, 0, buffer.Length); |
| 57 | + stream.Seek(0, SeekOrigin.Begin); |
| 58 | + |
| 59 | + using (StreamReader reader = new StreamReader(stream, encoding)) |
| 60 | + { |
| 61 | + return reader.ReadToEnd(); |
| 62 | + } |
| 63 | + } |
| 64 | + #endif |
| 65 | + } |
| 66 | + } |
| 67 | +} |
| 68 | + |
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