/// <summary>
/// エントリーポイント
/// </summary>
/// <param name="path">ファイルへのパス。なし、もしくは`-`の場合はSTDINから読み込む</param>
/// <param name="decode">trueのときデコード動作をする</param>
/// <param name="inputEncoding">入力ストリームのエンコーディング</param>
/// <param name="outputEncoding">出力ストリームのエンコーディング</param>
/// <returns>ステータスコード</returns>
public int Run(
[Option(0, "FILE")] string path = "-",
[Option("d", "decode")] bool decode = false,
[Option("f", "input encoding")] StreamEncoding inputEncoding = StreamEncoding.system,
[Option("t", "output encoding")] StreamEncoding outputEncoding = StreamEncoding.system
)
{
var iEncoding = GetEncoding(inputEncoding);
var oEncoding = GetEncoding(outputEncoding);
using var oStream = new StreamWriter(Console.OpenStandardOutput(), oEncoding);
using var stream = GetStream(path);
if (decode)
{
try {
var decoder = new Wbase59Decoder(stream, iEncoding);
oStream.Write(oEncoding.GetString(decoder.Decode().ToArray()));
}
catch (InvalidNabeFormatException e) {
LogError("ナベストリーム解析中にエラーが発生しました");
LogError(e.Message);
return(1);
}
catch (InvalidNabeIvsException e) {
LogError("不正なIvsです");
LogError(e.Message);
return(1);
}
catch (ParityNabeCheckFailedException e) {
LogError(e.Message);
return(1);
}
catch (Exception e) {
LogError(e);
return(1);
}
}
else
{
try {
var encoder = new Wbase59Encoder(stream, iEncoding);
foreach (var nabe in encoder.Encode())
{
oStream.Write(new UnicodeEncoding(true, false).GetString(nabe.GetSpan()));
}
oStream.Flush();
}
catch (InvalidNabeFormatException e) {
LogError(e);
return(1);
}
}
return(0);
}
private static async Task WriteStringAsync(string outString, Stream stream)
{
var data = StreamEncoding.GetBytes(outString);
var dataLength = data.Length;
var chunkCount = dataLength / MaxChunkDataSize + (dataLength % MaxChunkDataSize > 0 ? 1 : 0);
await WriteBundleHeaderAsync(stream, dataLength, chunkCount);
var chunkOffset = 0;
while (chunkOffset < dataLength)
{
chunkOffset = await WriteChunkAsync(stream, data, dataLength, chunkOffset);
}
}
protected static async Task <string> ReadStringAsync(Stream stream)
{
var bundleParams = await ReadBundleHeaderAsync(stream);
if (!bundleParams.Success)
{
throw new Exception("Invalid header signature");
}
var buffer = new byte[bundleParams.DataLength];
var chunkOffset = 0;
for (var i = 0; i < bundleParams.ChunkCount; i++)
{
chunkOffset = await ReadChunkAsync(stream, buffer, chunkOffset);
}
return(StreamEncoding.GetString(buffer));
}
/// <summary>
/// Constructs a new WebcastStream object
/// </summary>
/// <param name="uri">The URI of the stream</param>
/// <param name="encoding">The encoding of the stream</param>
public WebcastStream(Uri uri, StreamEncoding encoding)
{
this.Uri = uri;
this.Encoding = encoding;
}
public StreamInfo(Uri uri, StreamEncoding encoding)
{
this.Uri = uri;
this.Encoding = encoding;
}
/// <summary>
/// Constructs a new WebcastStream object
/// </summary>
/// <param name="uri">The URI of the stream</param>
/// <param name="encoding">The encoding of the stream</param>
public WebcastStream(Uri uri, StreamEncoding encoding)
{
this.Uri = uri;
this.Encoding = encoding;
}