protected override void OnSessionCompleted(Relay_Session session, Exception exception)
{
base.OnSessionCompleted(session, exception);
try
{
FileStream fileStream = (FileStream)session.MessageStream;
RelayMessageInfo relayMessageInfo = (RelayMessageInfo)session.QueueTag;
bool flag = false;
if (exception == null)
{
flag = true;
this.Send_DSN_Relayed(session);
}
else
{
bool flag2 = false;
if (exception is SMTP_ClientException)
{
flag2 = ((SMTP_ClientException)exception).IsPermanentError;
}
if (flag2 || relayMessageInfo.Date.AddMinutes((double)this.m_UndeliveredAfter) < DateTime.Now)
{
this.Send_DSN_Failed(session, exception.Message);
flag = true;
}
else if (session.Queue.Name.ToLower() == "relay")
{
session.MessageStream.Position = 0L;
this.StoreRelayMessage("Retry", Path.GetFileNameWithoutExtension(fileStream.Name), relayMessageInfo.EnvelopeID, relayMessageInfo.Date, session.MessageStream, relayMessageInfo.HostEndPoint, relayMessageInfo.Sender, relayMessageInfo.Recipient, relayMessageInfo.OriginalRecipient, relayMessageInfo.DSN_Notify, relayMessageInfo.DSN_Ret);
flag = true;
}
else if (!relayMessageInfo.DelayedDeliveryNotifySent && DateTime.Now > relayMessageInfo.Date.AddMinutes((double)this.DelayedDeliveryNotifyAfter))
{
this.Send_DSN_Delayed(session, exception.Message);
relayMessageInfo.DelayedDeliveryNotifySent = true;
File.WriteAllBytes(fileStream.Name.Replace(".eml", ".info"), relayMessageInfo.ToByte());
}
}
if (flag)
{
File.Delete(fileStream.Name);
File.Delete(fileStream.Name.Replace(".eml", ".info"));
}
fileStream.Dispose();
}
catch (Exception x)
{
DataSmart.MailServer.Error.DumpError(this.m_pVirtualServer.Name, x);
}
}
public static RelayMessageInfo Parse(byte[] value)
{
RelayMessageInfo result;
try
{
XmlTable xmlTable = new XmlTable("RelayMessageInfo");
xmlTable.Parse(value);
result = new RelayMessageInfo(string.IsNullOrEmpty(xmlTable.GetValue("EnvelopeID")) ? null : xmlTable.GetValue("EnvelopeID"), xmlTable.GetValue("Sender"), xmlTable.GetValue("Recipient"), string.IsNullOrEmpty(xmlTable.GetValue("OriginalRecipient")) ? null : xmlTable.GetValue("OriginalRecipient"), string.IsNullOrEmpty(xmlTable.GetValue("DSN-Notify")) ? SMTP_DSN_Notify.NotSpecified : ((SMTP_DSN_Notify)Enum.Parse(typeof(SMTP_DSN_Notify), xmlTable.GetValue("DSN-Notify"))), string.IsNullOrEmpty(xmlTable.GetValue("DSN-RET")) ? SMTP_DSN_Ret.NotSpecified : ((SMTP_DSN_Ret)Enum.Parse(typeof(SMTP_DSN_Ret), xmlTable.GetValue("DSN-RET"))), DateTime.ParseExact(xmlTable.GetValue("Date"), "r", DateTimeFormatInfo.InvariantInfo), Convert.ToBoolean(xmlTable.GetValue("DelayedDeliveryNotifySent")), (!string.IsNullOrEmpty(xmlTable.GetValue("HostEndPoint"))) ? HostEndPoint.Parse(xmlTable.GetValue("HostEndPoint"), 25) : null);
}
catch
{
throw new ArgumentException("Argument 'value' has invalid RelayMessageInfo value.");
}
return(result);
}
private void StoreRelayMessage(string queueName, string id, string envelopeID, DateTime date, Stream message, HostEndPoint targetHost, string sender, string to, string originalRecipient, SMTP_DSN_Notify notify, SMTP_DSN_Ret ret)
{
if (queueName == null)
{
throw new ArgumentNullException("queueName");
}
if (queueName == "")
{
throw new ArgumentException("Argumnet 'queueName' value must be specified.");
}
if (id == null)
{
throw new ArgumentNullException("id");
}
if (id == "")
{
throw new ArgumentException("Argument 'id' value must be specified.");
}
if (message == null)
{
throw new ArgumentNullException("message");
}
if (to == null)
{
throw new ArgumentNullException("to");
}
if (to == "")
{
throw new ArgumentException("Argument 'to' value must be specified.");
}
string text = this.m_pVirtualServer.MailStorePath + queueName;
if (!Directory.Exists(text))
{
Directory.CreateDirectory(text);
}
using (FileStream fileStream = File.Create(PathHelper.PathFix(text + "\\" + id + ".eml")))
{
SCore.StreamCopy(message, fileStream);
RelayMessageInfo relayMessageInfo = new RelayMessageInfo(envelopeID, sender, to, originalRecipient, notify, ret, date, false, targetHost);
File.WriteAllBytes(PathHelper.PathFix(text + "\\" + id + ".info"), relayMessageInfo.ToByte());
}
}
private void Send_DSN_Relayed(Relay_Session session)
{
if (session == null)
{
return;
}
try
{
if (!string.IsNullOrEmpty(session.From))
{
RelayMessageInfo relayMessageInfo = (RelayMessageInfo)session.QueueTag;
if ((relayMessageInfo.DSN_Notify & SMTP_DSN_Notify.Success) != SMTP_DSN_Notify.NotSpecified)
{
session.MessageStream.Position = 0L;
Mail_Message mail_Message = Mail_Message.ParseFromStream(session.MessageStream);
RelayVariablesManager relayVariablesManager = new RelayVariablesManager(this, session, "", mail_Message);
ServerReturnMessage serverReturnMessage = null;
if (serverReturnMessage == null)
{
string bodyTextRft = "{\\rtf1\\ansi\\ansicpg1257\\deff0\\deflang1061{\\fonttbl{\\f0\\froman\\fcharset0 Times New Roman;}{\\f1\froman\\fcharset186{\\*\\fname Times New Roman;}Times New Roman Baltic;}{\\f2\fswiss\\fcharset186{\\*\\fname Arial;}Arial Baltic;}}\r\n{\\colortbl ;\\red0\\green128\\blue0;\\red128\\green128\\blue128;}\r\n{\\*\\generator Msftedit 5.41.21.2508;}\\viewkind4\\uc1\\pard\\sb100\\sa100\\lang1033\\f0\\fs24\\par\r\nYour message WAS SUCCESSFULLY RELAYED to:\\line\\lang1061\\f1\\tab\\cf1\\lang1033\\b\\f0 <" + session.To + ">\\line\\cf0\\b0 and you explicitly requested a delivery status notification on success.\\par\\par\r\n\\cf2 Your original message\\lang1061\\f1 /header\\lang1033\\f0 is attached to this e-mail\\lang1061\\f1 .\\lang1033\\f0\\par\\r\\n\\cf0\\line\\par\r\n\\pard\\lang1061\\f2\\fs20\\par\r\n}\r\n";
serverReturnMessage = new ServerReturnMessage("DSN SUCCESSFULLY RELAYED: <#message.header[\"Subject:\"]>", bodyTextRft);
}
string rtfText = relayVariablesManager.Process(serverReturnMessage.BodyTextRtf);
Mail_Message mail_Message2 = DeliveryStatusNotification.CreateDsnMessage(session.From, relayVariablesManager.Process(serverReturnMessage.Subject), rtfText, relayMessageInfo.EnvelopeID, relayMessageInfo.Date, null, (session.IsConnected && string.IsNullOrEmpty(session.LocalHostName)) ? session.LocalEndPoint.Address.ToString() : session.LocalHostName, relayMessageInfo.OriginalRecipient, session.To, "relayed", "200 OK", session.RemoteHostName, DateTime.MinValue, DateTime.MinValue, (relayMessageInfo.DSN_Ret == SMTP_DSN_Ret.NotSpecified) ? SMTP_DSN_Ret.Headers : relayMessageInfo.DSN_Ret, mail_Message);
using (MemoryStream memoryStream = new MemoryStream())
{
mail_Message2.ToStream(memoryStream, new MIME_Encoding_EncodedWord(MIME_EncodedWordEncoding.Q, Encoding.UTF8), Encoding.UTF8);
this.m_pVirtualServer.ProcessAndStoreMessage("", new string[]
{
session.From
}, memoryStream, null);
}
mail_Message.Dispose();
mail_Message2.Dispose();
}
}
}
catch (Exception x)
{
DataSmart.MailServer.Error.DumpError(this.m_pVirtualServer.Name, x);
}
}
private void Send_DSN_Delayed(Relay_Session session, string error)
{
try
{
if (!string.IsNullOrEmpty(session.From))
{
RelayMessageInfo relayMessageInfo = (RelayMessageInfo)session.QueueTag;
if (relayMessageInfo.DSN_Notify == SMTP_DSN_Notify.NotSpecified || (relayMessageInfo.DSN_Notify & SMTP_DSN_Notify.Delay) != SMTP_DSN_Notify.NotSpecified)
{
session.MessageStream.Position = 0L;
Mail_Message mail_Message = Mail_Message.ParseFromStream(session.MessageStream);
RelayVariablesManager relayVariablesManager = new RelayVariablesManager(this, session, error, mail_Message);
ServerReturnMessage serverReturnMessage = this.DelayedDeliveryMessage;
if (serverReturnMessage == null)
{
string bodyTextRft = "{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1033{\\fonttbl{\\f0\\fnil\\fcharset0 Verdana;}{\\f1\\fnil\\fcharset186 Verdana;}{\\f2\\fswiss\\fcharset186{\\*\\fname Arial;}Arial Baltic;}{\\f3\\fnil\\fcharset0 Microsoft Sans Serif;}}\r\n{\\colortbl ;\\red0\\green64\\blue128;\\red255\\green0\\blue0;\\red0\\green128\\blue0;}\r\n\\viewkind4\\uc1\\pard\\f0\\fs20 This e-mail is generated by the Server(\\cf1 <#relay.hostname>\\cf0 ) to notify you, \\par\r\n\\lang1061\\f1 that \\lang1033\\f0 your message to \\cf1 <#relay.to>\\cf0 dated \\b\\fs16 <#message.header[\"Date:\"]>\\b0 \\fs20 could not be sent at the first attempt.\\par\r\n\\par\r\nRecipient \\i <#relay.to>'\\i0 s Server (\\cf1 <#relay.session_hostname>\\cf0 ) returned the following response: \\cf2 <#relay.error>\\cf0\\par\r\n\\par\r\n\\par\r\nPlease note Server will attempt to deliver this message for \\b <#relay.undelivered_after>\\b0 hours.\\par\r\n\\par\r\n--------\\par\r\n\\par\r\nYour original message is attached to this e-mail (\\b data.eml\\b0 )\\par\r\n\\par\r\n\\fs16 The tracking number for this message is \\cf3 <#relay.session_messageid>\\cf0\\fs20\\par\r\n\\lang1061\\f2\\par\r\n\\pard\\lang1033\\f3\\fs17\\par\r\n}\r\n";
serverReturnMessage = new ServerReturnMessage("Delayed delivery notice: <#message.header[\"Subject:\"]>", bodyTextRft);
}
string rtfText = relayVariablesManager.Process(serverReturnMessage.BodyTextRtf);
Mail_Message mail_Message2 = DeliveryStatusNotification.CreateDsnMessage(session.From, relayVariablesManager.Process(serverReturnMessage.Subject), rtfText, relayMessageInfo.EnvelopeID, relayMessageInfo.Date, null, (session.IsConnected && string.IsNullOrEmpty(session.LocalHostName)) ? session.LocalEndPoint.Address.ToString() : session.LocalHostName, relayMessageInfo.OriginalRecipient, session.To, "delayed", error, session.RemoteHostName, DateTime.Now, relayMessageInfo.Date.AddMinutes((double)this.UndeliveredAfter), (relayMessageInfo.DSN_Ret == SMTP_DSN_Ret.NotSpecified) ? SMTP_DSN_Ret.FullMessage : relayMessageInfo.DSN_Ret, mail_Message);
using (MemoryStream memoryStream = new MemoryStream())
{
mail_Message2.ToStream(memoryStream, new MIME_Encoding_EncodedWord(MIME_EncodedWordEncoding.Q, Encoding.UTF8), Encoding.UTF8);
this.m_pVirtualServer.ProcessAndStoreMessage("", new string[]
{
session.From
}, memoryStream, null);
}
mail_Message.Dispose();
mail_Message2.Dispose();
}
}
}
catch (Exception x)
{
DataSmart.MailServer.Error.DumpError(this.m_pVirtualServer.Name, x);
}
}
private void ProcessRelayRetry()
{
DateTime dateTime = DateTime.MinValue;
while (base.IsRunning)
{
try
{
if (dateTime.AddSeconds((double)this.m_RelayRetryInterval) < DateTime.Now)
{
string text = this.m_pVirtualServer.MailStorePath + "Retry";
if (Directory.Exists(text))
{
string[] files = Directory.GetFiles(text, "*.eml");
string[] array = files;
for (int i = 0; i < array.Length; i++)
{
string text2 = array[i];
while (base.Queues[1].Count > 25)
{
if (!base.IsRunning)
{
return;
}
Thread.Sleep(100);
}
try
{
string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(text2);
FileStream message = File.Open(text2, FileMode.Open, FileAccess.ReadWrite, FileShare.Read | FileShare.Delete);
if (File.Exists(PathHelper.PathFix(text + "\\" + fileNameWithoutExtension + ".info")))
{
RelayMessageInfo relayMessageInfo = RelayMessageInfo.Parse(File.ReadAllBytes(PathHelper.PathFix(text + "\\" + fileNameWithoutExtension + ".info")));
base.Queues[1].QueueMessage(relayMessageInfo.Sender, relayMessageInfo.Recipient, fileNameWithoutExtension, message, relayMessageInfo);
}
else
{
DataSmart.MailServer.Error.DumpError(this.m_pVirtualServer.Name, new Exception("Relay message '" + text2 + "' .info file is missing, deleting message."));
File.Delete(text2);
}
}
catch (IOException ex)
{
string arg_142_0 = ex.Message;
}
}
}
dateTime = DateTime.Now;
Thread.Sleep(1000);
}
else
{
Thread.Sleep(1000);
}
}
catch (Exception x)
{
DataSmart.MailServer.Error.DumpError(this.m_pVirtualServer.Name, x);
}
}
}
