internal static async Task CopyBytesToStreamChunked(this CustomBinaryReader clientStreamReader, Stream stream)
{
while (true)
{
var chuchkHead = await clientStreamReader.ReadLineAsync().ConfigureAwait(false);
var chunkSize = int.Parse(chuchkHead, NumberStyles.HexNumber);
if (chunkSize != 0)
{
var buffer = await clientStreamReader.ReadBytesAsync(chunkSize);
await stream.WriteAsync(buffer, 0, buffer.Length);
//chunk trail
await clientStreamReader.ReadLineAsync().ConfigureAwait(false);
}
else
{
await clientStreamReader.ReadLineAsync().ConfigureAwait(false);
break;
}
}
}
internal static async Task CopyBytesToStream(this CustomBinaryReader streamReader, Stream stream, long totalBytesToRead)
{
var totalbytesRead = 0;
long bytesToRead;
if (totalBytesToRead < Constants.BUFFER_SIZE)
{
bytesToRead = totalBytesToRead;
}
else
{
bytesToRead = Constants.BUFFER_SIZE;
}
while (totalbytesRead < totalBytesToRead)
{
var buffer = await streamReader.ReadBytesAsync(bytesToRead);
if (buffer.Length == 0)
{
break;
}
totalbytesRead += buffer.Length;
var remainingBytes = totalBytesToRead - totalbytesRead;
if (remainingBytes < bytesToRead)
{
bytesToRead = remainingBytes;
}
await stream.WriteAsync(buffer, 0, buffer.Length);
}
}
//Send chunked response
private static async Task WriteResponseBodyChunked(CustomBinaryReader inStreamReader, Stream outStream)
{
while (true)
{
var chunkHead = await inStreamReader.ReadLineAsync().ConfigureAwait(false);
var chunkSize = int.Parse(chunkHead, NumberStyles.HexNumber);
if (chunkSize != 0)
{
var buffer = await inStreamReader.ReadBytesAsync(chunkSize).ConfigureAwait(false);
var chunkHeadBytes = Encoding.ASCII.GetBytes(chunkSize.ToString("x2"));
await outStream.WriteAsync(chunkHeadBytes, 0, chunkHeadBytes.Length).ConfigureAwait(false);
await outStream.WriteAsync(Constants.NewLineBytes, 0, Constants.NewLineBytes.Length).ConfigureAwait(false);
await outStream.WriteAsync(buffer, 0, chunkSize).ConfigureAwait(false);
await outStream.WriteAsync(Constants.NewLineBytes, 0, Constants.NewLineBytes.Length).ConfigureAwait(false);
await inStreamReader.ReadLineAsync().ConfigureAwait(false);
}
else
{
await inStreamReader.ReadLineAsync().ConfigureAwait(false);
await outStream.WriteAsync(Constants.ChunkEnd, 0, Constants.ChunkEnd.Length).ConfigureAwait(false);
break;
}
}
}
/// <summary>
/// copies the specified bytes to the stream from the input stream
/// </summary>
/// <param name="streamReader"></param>
/// <param name="stream"></param>
/// <param name="totalBytesToRead"></param>
/// <returns></returns>
internal static async Task CopyBytesToStream(this CustomBinaryReader streamReader, Stream stream, long totalBytesToRead)
{
var buffer = streamReader.Buffer;
long remainingBytes = totalBytesToRead;
while (remainingBytes > 0)
{
int bytesToRead = buffer.Length;
if (remainingBytes < bytesToRead)
{
bytesToRead = (int)remainingBytes;
}
int bytesRead = await streamReader.ReadBytesAsync(buffer, bytesToRead);
if (bytesRead == 0)
{
break;
}
remainingBytes -= bytesRead;
await stream.WriteAsync(buffer, 0, bytesRead);
}
}
/// <summary>
/// copies the specified bytes to the stream from the input stream
/// </summary>
/// <param name="streamReader"></param>
/// <param name="bufferSize"></param>
/// <param name="stream"></param>
/// <param name="totalBytesToRead"></param>
/// <returns></returns>
internal static async Task CopyBytesToStream(this CustomBinaryReader streamReader, int bufferSize, Stream stream, long totalBytesToRead)
{
var totalbytesRead = 0;
long bytesToRead = totalBytesToRead < bufferSize ? totalBytesToRead : bufferSize;
while (totalbytesRead < totalBytesToRead)
{
var buffer = await streamReader.ReadBytesAsync(bufferSize, bytesToRead);
if (buffer.Length == 0)
{
break;
}
totalbytesRead += buffer.Length;
var remainingBytes = totalBytesToRead - totalbytesRead;
if (remainingBytes < bytesToRead)
{
bytesToRead = remainingBytes;
}
await stream.WriteAsync(buffer, 0, buffer.Length);
}
}