private async Task HandleDele(string command)
{
var messageNumber = CommandParser.ParseDele(command);
if (messageNumber.HasValue)
{
var commandResult = await _commandHandler.HandleDele(messageNumber.Value);
await SendCommandResult(commandResult);
}
else
{
await SendCommandResult(Pop3CommandReply.CreateNoSuchMessage());
}
}
private async Task HandleRetr(string command)
{
var messageIndex = CommandParser.ParseRetr(command);
if (messageIndex.HasValue)
{
var stream = await _commandHandler.HandleRetr(messageIndex.Value);
if (stream == null)
{
await SendCommandResult(Pop3CommandReply.CreateNoSuchMessage());
}
else
{
using (stream)
{
await _connection.WriteString("+OK\r\n");
// TODO: Add transmission period.
byte[] buf = new byte[4096];
int bytesRead = 0;
while ((bytesRead = stream.Read(buf, 0, buf.Length)) > 0)
{
if (bytesRead < buf.Length)
{
var reducedBuffer = new byte[bytesRead];
Buffer.BlockCopy(buf, 0, reducedBuffer, 0, bytesRead);
await _connection.WriteBytes(reducedBuffer);
}
else
{
await _connection.WriteBytes(buf);
}
}
}
await _connection.WriteString("\r\n.\r\n");
}
}
else
{
await SendCommandResult(Pop3CommandReply.CreateNoSuchMessage());
}
}
