private SmtpResponse Read()
{
byte [] buffer = new byte [512];
int position = 0;
bool lastLine = false;
do
{
CheckCancellation();
int readLength = stream.Read(buffer, position, buffer.Length - position);
if (readLength > 0)
{
int available = position + readLength - 1;
if (available > 4 && (buffer [available] == '\n' || buffer [available] == '\r'))
{
for (int index = available - 3; ; index--)
{
if (index < 0 || buffer [index] == '\n' || buffer [index] == '\r')
{
lastLine = buffer [index + 4] == ' ';
break;
}
}
}
// move position
position += readLength;
// check if buffer is full
if (position == buffer.Length)
{
byte [] newBuffer = new byte [buffer.Length * 2];
Array.Copy(buffer, 0, newBuffer, 0, buffer.Length);
buffer = newBuffer;
}
}
else
{
break;
}
} while (!lastLine);
if (position > 0)
{
Encoding encoding = new ASCIIEncoding();
string line = encoding.GetString(buffer, 0, position - 1);
// parse the line to the lastResponse object
SmtpResponse response = SmtpResponse.Parse(line);
return(response);
}
else
{
throw new System.IO.IOException("Connection closed");
}
}
public static SmtpResponse GenerateResponse(MessageAction messageLevelAction, IReadOnlyMailRecipientCollection recipients, SmtpResponse smtpResponse, TimeSpan?retryInterval)
{
if (recipients == null)
{
throw new ArgumentNullException("recipients", "Required argument is not provided");
}
bool flag = SmtpResponseGenerator.ShouldGenerateAllRecipients(recipients);
if (!flag && retryInterval == null && messageLevelAction != MessageAction.RetryQueue)
{
return(smtpResponse);
}
StringBuilder stringBuilder = new StringBuilder();
SmtpResponseGenerator.GenerateBanner(stringBuilder, smtpResponse.StatusCode, smtpResponse.EnhancedStatusCode);
stringBuilder.AppendFormat(CultureInfo.InvariantCulture, "{0}{1}{2} {3} {4}{5}{6}", new object[]
{
smtpResponse.StatusCode,
flag ? "-" : " ",
flag ? smtpResponse.StatusCode : string.Empty,
smtpResponse.EnhancedStatusCode,
SmtpResponseGenerator.FlattenStatusText(smtpResponse),
SmtpResponseGenerator.GenerateAdditionalContextForMessage(messageLevelAction, retryInterval),
"\r\n"
});
if (flag)
{
IEnumerator <MailRecipient> enumerator = recipients.GetEnumerator();
bool flag2 = enumerator.MoveNext();
while (flag2)
{
MailRecipient mailRecipient = enumerator.Current;
flag2 = enumerator.MoveNext();
bool value = mailRecipient.ExtendedProperties.GetValue <bool>("Microsoft.Exchange.Transport.MailboxTransport.RetryOnDuplicateDelivery ", false);
mailRecipient.ExtendedProperties.Remove("Microsoft.Exchange.Transport.MailboxTransport.RetryOnDuplicateDelivery ");
SmtpResponse responseForRecipient = SmtpResponseGenerator.GetResponseForRecipient(mailRecipient, value);
stringBuilder.AppendFormat(CultureInfo.InvariantCulture, "{0}{1}{2} {3} {4}{5}{6}", new object[]
{
smtpResponse.StatusCode,
flag2 ? "-" : " ",
responseForRecipient.StatusCode,
responseForRecipient.EnhancedStatusCode,
SmtpResponseGenerator.FlattenStatusText(responseForRecipient),
SmtpResponseGenerator.GenerateAdditionalContextForRecipient(mailRecipient, value),
"\r\n"
});
}
}
return(SmtpResponse.Parse(stringBuilder.ToString()));
}
private static SmtpResponse CreateStoreDriverRetireResponse()
{
StringBuilder stringBuilder = new StringBuilder();
SmtpResponseGenerator.GenerateBanner(stringBuilder, "432", "4.3.2");
stringBuilder.AppendFormat(CultureInfo.InvariantCulture, "{0}{1}{2} {3} {4}{5}{6}", new object[]
{
"432",
" ",
"432",
"4.3.2",
"STOREDRV.Deliver; Component has been retired",
string.Format(CultureInfo.InvariantCulture, "[{0}={1}]", new object[]
{
"resubmit",
true
}),
"\r\n"
});
return(SmtpResponse.Parse(stringBuilder.ToString()));
}