/// <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()); } }