/// <summary>
/// Default constructor.
/// </summary>
/// <param name="server">Reference to owner relay server.</param>
/// <param name="file">Message file to relay.</param>
/// <param name="relay_retry">If true then first time relay, otherwise retry attempt.</param>
public Relay_Session(Relay_Server server,string file,bool relay_retry)
{
m_pRelayServer = server;
m_MessageFile = file;
m_relay_retry = relay_retry;
m_pMessageStream = File.Open(m_MessageFile,FileMode.Open,FileAccess.ReadWrite,FileShare.Read);
m_pRelayInfo = new RelayInfo(m_pMessageStream,m_pRelayServer.UndeliveredAfter,m_pRelayServer.UndeliveredWarningAfter);
m_SessionID = Guid.NewGuid().ToString();
m_SessionStartTime = DateTime.Now;
m_pSmtpClient = new SmtpClientEx();
m_pSmtpClient.DnsServers = new string[]{m_pRelayServer.Dns1,m_pRelayServer.Dns2};
if(m_pRelayServer.LogCommands){
m_pSmtpClient.SessionLog += new LogEventHandler(OnSMTP_LogPart);
}
m_pConnectPoints = new Queue<IPAddress>();
}
/// <summary>
/// Creates undelivered warning for user and places it to relay folder.
/// </summary>
/// <param name="relayInfo">Relay info</param>
/// <param name="error">SMTP returned error text.</param>
/// <param name="file">Messsage file.</param>
private void MakeUndeliveredWarning(RelayInfo relayInfo,string error,Stream file)
{
try{
// If sender isn't specified, we can't send warning to sender.
// Just skip warning sending.
if(relayInfo.From.Length == 0){
return;
}
file.Position = relayInfo.MessageStartPos;
RelayVariablesManager variablesMgr = new RelayVariablesManager(this,error,file);
file.Position = relayInfo.MessageStartPos;
ServerReturnMessage messageTemplate = m_pRelayServer.UndeliveredMessage;
if(messageTemplate == null){
string bodyRtf = "" +
"{\\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\n" +
"Recipient \\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\n" +
"Please 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\n" +
"Your 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";
messageTemplate = new ServerReturnMessage("Delayed delivery notice: <#message.header[\"Subject:\"]>",bodyRtf);
}
// Make new message
Mime m = new Mime();
MimeEntity mainEntity = m.MainEntity;
// Force to create From: header field
mainEntity.From = new AddressList();
mainEntity.From.Add(new MailboxAddress("postmaster"));
// Force to create To: header field
mainEntity.To = new AddressList();
mainEntity.To.Add(new MailboxAddress(relayInfo.From));
mainEntity.Subject = variablesMgr.Process(messageTemplate.Subject);
mainEntity.ContentType = MediaType_enum.Multipart_mixed;
string rtf = variablesMgr.Process(messageTemplate.BodyTextRtf);
MimeEntity multipartAlternativeEntity = mainEntity.ChildEntities.Add();
multipartAlternativeEntity.ContentType = MediaType_enum.Multipart_alternative;
MimeEntity textEntity = multipartAlternativeEntity.ChildEntities.Add();
textEntity.ContentType = MediaType_enum.Text_plain;
textEntity.ContentTransferEncoding = ContentTransferEncoding_enum.QuotedPrintable;
textEntity.DataText = SCore.RtfToText(rtf);
MimeEntity htmlEntity = multipartAlternativeEntity.ChildEntities.Add();
htmlEntity.ContentType = MediaType_enum.Text_html;
htmlEntity.ContentTransferEncoding = ContentTransferEncoding_enum.QuotedPrintable;
htmlEntity.DataText = SCore.RtfToHtml(rtf);
MimeEntity attachmentEntity = mainEntity.ChildEntities.Add();
attachmentEntity.ContentType = MediaType_enum.Application_octet_stream;
attachmentEntity.ContentDisposition = ContentDisposition_enum.Attachment;
attachmentEntity.ContentTransferEncoding = ContentTransferEncoding_enum.Base64;
attachmentEntity.ContentDisposition_FileName = "data.eml";
attachmentEntity.DataFromStream(file);
using(MemoryStream strm = new MemoryStream()){
m.ToStream(strm);
m_pRelayServer.VirtualServer.ProcessAndStoreMessage("",new string[]{relayInfo.From},strm,null);
}
}
catch(Exception x){
Error.DumpError(x,new System.Diagnostics.StackTrace());
}
}