/// <summary>
/// Constructor fo <see cref="BaseNEncoder"/>.
/// </summary>
/// <param name="baseNAlphabet"></param>
public BaseNEncoder(BaseNAlphabet baseNAlphabet)
{
if (baseNAlphabet == null)
{
throw new ArgumentNullException(nameof(baseNAlphabet));
}
this.Alphabet = baseNAlphabet;
}
/// <summary>
/// Constructor of <see cref="BaseNDecoder"/>.
/// </summary>
/// <param name="baseNAlphabet"></param>
public BaseNDecoder(BaseNAlphabet baseNAlphabet)
{
if (baseNAlphabet == null)
{
throw new ArgumentNullException(nameof(baseNAlphabet));
}
this.Alphabet = baseNAlphabet;
this.algorithmType = this.Alphabet.Alphabet.Length switch
{
16 => ALGORITHM_TYPE_BASE_16,
32 => ALGORITHM_TYPE_BASE_32,
64 => ALGORITHM_TYPE_BASE_64,
_ => ALGORITHM_TYPE_OTHER
};
}
/// <summary>
/// Constructor of <see cref="BaseNEncoding"/>
/// </summary>
/// <param name="baseNAlphabet">Alphabet used as base for encoding binary data.</param>
/// <param name="encodingName">Name of encoding. Used for <see cref="Encoding.EncodingName"/> property.</param>
public BaseNEncoding(BaseNAlphabet baseNAlphabet, string encodingName)
{
if (baseNAlphabet == null)
{
throw new ArgumentNullException(nameof(baseNAlphabet));
}
if (encodingName == null)
{
throw new ArgumentNullException(nameof(encodingName));
}
this.EncodingName = encodingName;
this.Alphabet = baseNAlphabet;
this.encoder = new BaseNEncoder(baseNAlphabet);
this.decoder = new BaseNDecoder(baseNAlphabet);
}
/// <summary>
/// Create BaseN decoding stream based on passed <paramref name="stream"/>.
/// </summary>
/// <param name="stream">Input stream with encoded data.</param>
/// <param name="baseNAlphabet">Decoding alphabet.</param>
/// <param name="leaveOpen">Leave <paramref name="stream"/> open when returned <see cref="Stream"/> is closed.</param>
/// <returns>Read-only decoding stream.</returns>
public static Stream BaseNDecode(this Stream stream, BaseNAlphabet baseNAlphabet
#if NETCOREAPP
, bool leaveOpen = false
#endif
)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (baseNAlphabet == null)
{
throw new ArgumentNullException(nameof(baseNAlphabet));
}
return(new CryptoStream(stream, new BaseNEncoder(baseNAlphabet), CryptoStreamMode.Read
#if NETCOREAPP
, leaveOpen
#endif
));
}
