/// <summary>
/// Clone the <see cref="YEncoder"/> with its current state.
/// </summary>
/// <remarks>
/// Creates a new <see cref="YEncoder"/> with exactly the same state as the current encoder.
/// </remarks>
/// <returns>A new <see cref="YEncoder"/> with identical state.</returns>
public IMimeEncoder Clone()
{
var encoder = new YEncoder(lineLength);
encoder.crc = crc.Clone();
encoder.octets = octets;
return(encoder);
}
/// <summary>
/// Clone the <see cref="YEncoder"/> with its current state.
/// </summary>
/// <remarks>
/// Creates a new <see cref="YEncoder"/> with exactly the same state as the current encoder.
/// </remarks>
/// <returns>A new <see cref="YEncoder"/> with identical state.</returns>
public IMimeEncoder Clone ()
{
var encoder = new YEncoder (lineLength);
encoder.crc = crc.Clone ();
encoder.octets = octets;
return encoder;
}
public void TestSimpleYEncMessage ()
{
using (var file = File.OpenRead ("../../TestData/yenc/simple.msg")) {
var message = MimeMessage.Load (file);
using (var decoded = new MemoryStream ()) {
var ydec = new YDecoder ();
using (var filtered = new FilteredStream (decoded)) {
filtered.Add (new DecoderFilter (ydec));
((MimePart) message.Body).ContentObject.WriteTo (filtered);
filtered.Flush ();
}
decoded.Position = 0;
Assert.AreEqual (584, decoded.Length, "The decoded size does not match.");
Assert.AreEqual (0xded29f4f, ydec.Checksum ^ 0xffffffff, "The decoded checksum does not match.");
// now re-encode it
using (var encoded = new MemoryStream ()) {
var ybegin = Encoding.ASCII.GetBytes ("-- \n=ybegin line=128 size=584 name=testfile.txt \n");
var yend = Encoding.ASCII.GetBytes ("=yend size=584 crc32=ded29f4f \n");
var yenc = new YEncoder ();
encoded.Write (ybegin, 0, ybegin.Length);
using (var filtered = new FilteredStream (encoded)) {
filtered.Add (new EncoderFilter (yenc));
decoded.CopyTo (filtered, 4096);
filtered.Flush ();
}
encoded.Write (yend, 0, yend.Length);
Assert.AreEqual (0xded29f4f, yenc.Checksum ^ 0xffffffff, "The encoded checksum does not match.");
using (var original = new MemoryStream ()) {
using (var filtered = new FilteredStream (original)) {
filtered.Add (new Dos2UnixFilter ());
((MimePart) message.Body).ContentObject.WriteTo (filtered);
filtered.Flush ();
}
var latin1 = Encoding.GetEncoding ("iso-8859-1");
var buf = original.GetBuffer ();
var expected = latin1.GetString (buf, 0, (int) original.Length);
buf = encoded.GetBuffer ();
var actual = latin1.GetString (buf, 0, (int) encoded.Length);
Assert.AreEqual (expected, actual, "Encoded value does not match original.");
}
}
}
}
}