/// <summary>
/// Reply to the client.
/// </summary>
/// <param name="stream">The text stream to perform the operation on.</param>
/// <param name="response">The response.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which performs the operation.</returns>
public static async Task ReplyAsync(this ITextStream stream, SmtpResponse response, CancellationToken cancellationToken)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
await stream.WriteLineAsync($"{(int)response.ReplyCode} {response.Message}", cancellationToken);
await stream.FlushAsync(cancellationToken);
}
/// <summary>
/// Writes a line of characters asynchronously to the current stream.
/// </summary>
/// <param name="stream">The stream to perform the operation on.</param>
/// <param name="text">The text to write to the stream.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task that represents the asynchronous write operation.</returns>
public static async Task WriteLineAsync(this ITextStream stream, string text, CancellationToken cancellationToken)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
try
{
await stream.WriteLineAsync(text).WithCancellation(cancellationToken);
}
catch (OperationCanceledException) { }
}
