public async Task <byte[]> ReceiveAsync(SocketFlags flags, int length, bool isStrict)
{
try
{
var buffer = new byte[length];
int readLength = await ReceiveAsync(buffer,
0, length, flags).ConfigureAwait(false);
if (!isStrict)
{
var readData = new byte[readLength];
Buffer.BlockCopy(buffer, 0, readData, 0, readLength);
buffer = readData;
}
while (isStrict && (readLength < length))
{
int bytesLeft = (length - readLength);
readLength += await ReceiveAsync(buffer,
readLength, bytesLeft, flags).ConfigureAwait(false);
}
Decrypter?.Parse(buffer);
return(buffer);
}
catch { return(null); }
}
/// <summary>
/// Receives an array of type <see cref="byte"/> that contains data convertible to an <see cref="HMessage"/> in an asynchronous operation.
/// </summary>
/// <returns></returns>
public async Task <byte[]> ReceiveAsync()
{
byte[] lengthBlock = new byte[4];
await ReceiveAsync(lengthBlock, 0, 4).ConfigureAwait(false);
Decrypter?.Parse(lengthBlock);
int bodyLength = BigEndian.DecypherInt(lengthBlock);
int bytesRead = 0;
int totalBytesRead = 0;
byte[] body = new byte[bodyLength];
while (totalBytesRead != body.Length)
{
byte[] block = new byte[bodyLength - totalBytesRead];
bytesRead = await ReceiveAsync(block, 0, block.Length)
.ConfigureAwait(false);
Buffer.BlockCopy(block, 0, body, totalBytesRead, bytesRead);
totalBytesRead += bytesRead;
}
Decrypter?.Parse(body);
byte[] packet = new byte[4 + body.Length];
Buffer.BlockCopy(lengthBlock, 0, packet, 0, 4);
Buffer.BlockCopy(body, 0, packet, 4, body.Length);
return(packet);
}
public async Task <byte[]> ReceiveAsync(SocketFlags flags, int length, bool isStrict)
{
var buffer = new byte[length];
try
{
int readLength = await ReceiveAsync(
buffer, 0, length, flags).ConfigureAwait(false);
if (!isStrict)
{
var readData = new byte[readLength];
Buffer.BlockCopy(buffer, 0, readData, 0, readLength);
buffer = readData;
}
while (isStrict && (readLength < length))
{
int bytesLeft = (length - readLength);
readLength += await ReceiveAsync(buffer,
readLength, bytesLeft, flags).ConfigureAwait(false);
if (readLength == 0 && bytesLeft > 0)
{
buffer = null;
break;
}
}
if (buffer != null)
{
Decrypter?.Parse(buffer);
}
}
catch { buffer = null; }
finally
{
if (buffer == null)
{
Disconnect();
}
}
return(buffer);
}