/// <summary>
/// Execute the command.
/// </summary>
/// <param name="context">The execution context to operate on.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which asynchronously performs the execution.</returns>
public override async Task ExecuteAsync(ISmtpSessionContext context, CancellationToken cancellationToken)
{
using (var container = new DisposableContainer <IMailboxFilter>(_mailboxFilterFactory.CreateInstance(context)))
{
switch (await container.Instance.CanDeliverToAsync(context, _address, context.Transaction.From))
{
case MailboxFilterResult.Yes:
context.Transaction.To.Add(_address);
await context.Text.ReplyAsync(SmtpResponse.Ok, cancellationToken);
return;
case MailboxFilterResult.NoTemporarily:
await context.Text.ReplyAsync(SmtpResponse.MailboxUnavailable, cancellationToken);
return;
case MailboxFilterResult.NoPermanently:
await context.Text.ReplyAsync(SmtpResponse.MailboxNameNotAllowed, cancellationToken);
return;
}
}
throw new NotSupportedException("The Acceptance state is not supported.");
}
/// <summary>
/// Execute the command.
/// </summary>
/// <param name="context">The execution context to operate on.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which asynchronously performs the execution.</returns>
public override async Task ExecuteAsync(ISmtpSessionContext context, CancellationToken cancellationToken)
{
context.Transaction.Reset();
// check if a size has been defined
var size = GetMessageSize();
// check against the server supplied maximum
if (_maxMessageSize > 0 && size > _maxMessageSize)
{
await context.Text.ReplyAsync(SmtpResponse.SizeLimitExceeded, cancellationToken);
return;
}
using (var container = new DisposableContainer <IMailboxFilter>(_mailboxFilterFactory.CreateInstance(context)))
{
switch (await container.Instance.CanAcceptFromAsync(context, Address, size))
{
case MailboxFilterResult.Yes:
context.Transaction.From = _address;
await context.Text.ReplyAsync(SmtpResponse.Ok, cancellationToken);
return;
case MailboxFilterResult.NoTemporarily:
await context.Text.ReplyAsync(SmtpResponse.MailboxUnavailable, cancellationToken);
return;
case MailboxFilterResult.NoPermanently:
await context.Text.ReplyAsync(SmtpResponse.MailboxNameNotAllowed, cancellationToken);
return;
case MailboxFilterResult.SizeLimitExceeded:
await context.Text.ReplyAsync(SmtpResponse.SizeLimitExceeded, cancellationToken);
return;
}
}
throw new NotSupportedException("The Acceptance state is not supported.");
}
