private void DoAutoSubscription()
        {
            // Connect to DB and prepare command
            SqlConnection conn = FoeServerDb.OpenDb();
            SqlCommand    cmd  = conn.CreateCommand();

            cmd.CommandText = "select * from AutoSubscriptions where DtSubscribed>=@oldestTime";
            cmd.Parameters.Add("@oldestTime", System.Data.SqlDbType.DateTime);
            cmd.Prepare();

            // Calculate the oldest time that we will support
            DateTime oldest = DateTime.Now.Subtract(new TimeSpan(2, 0, 0));

            // Run query
            cmd.Parameters["@oldestTime"].Value = oldest;
            SqlDataReader reader = cmd.ExecuteReader();

            // Get subscribers
            FoeServerAutoSubscriber sub = null;

            while ((sub = FoeServerAutoSubscribe.GetNextAutoSubscriberFromSqlReader(reader)) != null)
            {
                // Compare the dates to see if last updated is newer than the RSS cache
                FoeServerRssFeed feed = FoeServerCatalog.GetRssFeedCache(sub.CatalogCode);
                if ((feed != null) && (feed.DtLastUpdated > sub.DtLastUpdated))
                {
                    try
                    {
                        // we need to send the latest news to user
                        FoeServerCatalog.SendRssCache(sub.CatalogCode, sub.UserEmail, sub.RequestId, true);

                        FoeServerLog.Add(_processName, FoeServerLog.LogType.Message,
                                         "Sent updated RSS feed to " + sub.UserEmail);
                    }
                    catch (Exception except)
                    {
                        FoeServerLog.Add(_processName, FoeServerLog.LogType.Error,
                                         "Error sending updated RSS feed to " + sub.UserEmail + ":\r\n" + except.ToString());
                    }
                }
                else
                {
                    // User already has the latest feed.
                }
            }

            reader.Close();
            conn.Close();
        }
        private void DoContentDelivery()
        {
            //FoeDebug.Print("Loading requests...");
            bool hasError = false;

            // Load content requests
            FoeRequester     req            = null;
            FoeServerRequest requestManager = new FoeServerRequest(RequestType.Content, FoeServerRegistry.Get("ProcessorEmail"));

            while ((req = requestManager.GetNextRequest()) != null)
            {
                //FoeDebug.Print("Processing request from " + req.UserEmail + " with request ID " + req.RequestId);

                // Check what contents are requested


                // Get user info
                FoeUser user = FoeServerUser.GetUser(req.UserEmail);
                if (user == null)
                {
                    //FoeDebug.Print("User not registered. Skip this request.");
                    //FoeDebug.Print("---------------------------------------");

                    // User is not registered, mark this request as "E" (Error) and skip to the next one
                    requestManager.UpdateRequestStatus(req, "E");

                    FoeServerLog.Add(_processName, FoeServerLog.LogType.Warning, "User " + user.Email + " not registered. Discard content request.");

                    continue;
                }

                //FoeDebug.Print("User verified.");

                // Process request
                string catalog = req.RequestMessage;
                string rss     = FoeServerCatalog.GetRssCache(catalog); // original RSS

                if (rss != null)
                {
                    // Send reply to user
                    try
                    {
                        FoeServerMessage.SendMessage(
                            FoeServerMessage.GetDefaultSmtpServer(),
                            FoeServerRegistry.Get("ProcessorEmail"),
                            req.UserEmail,
                            SubjectGenerator.ReplySubject(RequestType.Content, catalog, req.RequestId, FoeServerUser.GetUser(req.UserEmail).UserId),
                            rss);

                        //FoeDebug.Print("Sent reply to user.");

                        // Add user to auto-subscription list
                        FoeServerAutoSubscribe.Add(req.UserEmail, catalog, req.RequestId);

                        //FoeDebug.Print("Added user to Auto Subscription.");
                    }
                    catch (Exception except)
                    {
                        //FoeDebug.Print("Error sending email.");
                        //FoeDebug.Print(except.ToString());
                        hasError = true;

                        FoeServerLog.Add(_processName, FoeServerLog.LogType.Error, "Error delivering content to " + user.Email + "\r\n" + except.ToString());
                    }
                }

                // If there is no error, then we'll mark the request as 'C' (Completed).
                // Otherwise, we'll leave it as 'P' (Pending).
                if (!hasError)
                {
                    // mark request as "C" (Completed)
                    requestManager.UpdateRequestStatus(req, "C");

                    FoeServerLog.Add(_processName, FoeServerLog.LogType.Message, "Sent " + catalog + "to " + user.Email + " and added user to AutoSubscription.");

                    //FoeDebug.Print("Marked request as 'C' (Completed).");
                    //FoeDebug.Print("----------------------------------");
                }
                else
                {
                    //FoeDebug.Print("Leave request as 'P' (Pending).");
                    //FoeDebug.Print("-------------------------------");

                    FoeServerLog.Add(_processName, FoeServerLog.LogType.Error,
                                     "Error delivering content but error is likely caused by temporary email downtime. " +
                                     "Leave status as 'P' (Pending) so process can try again later.");
                }
            }

            // Close all requestManager connections
            requestManager.Close();
        }