private async void HandleQueue()
{
var active = queue.Join(mailboxes, queue => queue.Owner, mailboxes => mailboxes.Alias,
(q, m) => new { queue = q, mailboxes = m })
.Where(q => q.queue.Status == Status.Waiting && !q.mailboxes.Busy)
.OrderBy(q => q.queue.Size).ToList();
//List<Queue> active = queue.Where(q => !q.Owner.Busy && q.Status == Status.Waiting)
// .OrderBy(q => q.Size).ToList();
if (active.Count == 0 || queuebusy)
{
return;
}
queuebusy = true;
List <string> aliases = active.GroupBy(q => q.queue.Owner)
.Select(g => g.First())
.Select(q => q.queue.Owner).ToList();
foreach (string alias in aliases)
{
//List<Queue> batch = active.Where(q => q.Alias == alias)
// .GroupBy(q => q.Owner)
// .Select(g => g.First()).ToList();
// TODO: combine duplicte messages, so they only download once.
//while (tocktasks.Count >= config.Settings.MaxQueueThreads)
while (tocktasks.Count >= 1)
{
await Task.Delay(1000);
tocktasks.RemoveAll(t => t.Status == TaskStatus.RanToCompletion);
}
Queue q = queue.Where(a => a.Owner == alias).First();
Mailbox owner = mailboxes.Where(m => m.Alias == q.Owner).First();
tocktasks.Add(Task.Run(() =>
{
ProcessQueuedMessages(owner);
}));
}
queuebusy = false;
}
private void ProcessQueuedMessages(Mailbox mailbox)
{
Server serverout = config.Servers.Find(s => s.Alias == mailbox.Outbound.Alias && s.Type == ServerType.SMTP);
mailbox.Busy = true;
WriteLog(string.Format("Precessing Queued Messages: {0}: {1}:{2}",
serverout.Alias, mailbox.Alias, serverout.Domain, serverout.Port), LogLevel.Informational);
using (SmtpClient outbound = new SmtpClient(serverout))
{
outbound.MessageSent += onMessageSent;
//TODO: outbound progress
try
{
outbound.Connect();
}
catch (Exception e)
{
WriteLog(String.Format("SMTP: Error connecting to {0} : {1}", mailbox.Outbound.Alias, e.Message), LogLevel.Error);
return;
}
Server serverin = config.Servers.Find(s => s.Alias == mailbox.Inbound.Alias && s.Type == ServerType.POP3);
using (var inbound = new Pop3Client(serverin, mailbox))
{
inbound.ProgressChanged += onProgressChanged;
try
{
inbound.Connect();
}
catch (Exception e)
{
WriteLog(String.Format("POP3: Error connecting to {0} : {1}", mailbox.Inbound.Alias, e.Message), LogLevel.Error);
return;
}
try
{
List <Queue> batch = queue.Where(q => q.Owner == mailbox.Alias).OrderBy(q => q.Size).ToList();
foreach (Queue q in batch)
{
TransferMessage(inbound, outbound, q);
}
}
catch (Exception e)
{
WriteLog(String.Format("Error transfering from {0} : {1}", mailbox.Inbound.Alias, e.Message), LogLevel.Error);
return;
}
if (inbound.IsConnected)
{
inbound.Disconnect(true);
}
if (inbound != null)
{
inbound.Dispose();
}
}
if (outbound.IsConnected)
{
outbound.Disconnect(true);
}
if (outbound != null)
{
outbound.Dispose();
}
}
mailbox.Busy = false;
}
private void ProcessMailboxAsync(Mailbox mailbox)
{
Server server = config.Servers.Find(s => s.Alias == mailbox.Outbound.Alias && s.Type == ServerType.SMTP);
using (SmtpClient outbound = new SmtpClient(server))
{
outbound.MessageSent += onMessageSent;
try
{
outbound.Connect();
}
catch (Exception e)
{
WriteLog(String.Format("SMTP: Error connecting to {0} : {1}", mailbox.Outbound.Alias, e.Message), LogLevel.Error);
return;
}
using (var inbound = new Pop3Client(config.Servers.Find(s => s.Alias == mailbox.Inbound.Alias && s.Type == ServerType.POP3), mailbox))
{
try
{
inbound.Connect();
}
catch (Exception e)
{
WriteLog(String.Format("POP3: Error connecting to {0} : {1}", mailbox.Inbound.Alias, e.Message), LogLevel.Error);
return;
}
try
{
if (String.IsNullOrEmpty(mailbox.LastUID))
{
WriteLog(string.Format("Skipping New Mailbox: {0} : {1} : {2} Mesages", mailbox.Alias, mailbox.Name, inbound.Count), LogLevel.Warning);
if (inbound.Count > 0)
{
// We are going to skip ALL messages, because this is the first run on this mailbox!
mailbox.LastUID = inbound.GetMessageUids().Last();
return;
}
else
{
// Return zero as last UID, because mailbox is empty.
mailbox.LastUID = "0";
return;
}
}
// Get a list of all new message UIDs
IList <string> uids = inbound.GetNewMessageUids(mailbox.LastUID);
//uids.Remove(mailbox.LastUID);
if (uids.Count > 0)
{
WriteLog(string.Format("Processing Mailbox: {0} : {1} : {2} Mesages ({3} new)", mailbox.Alias, mailbox.Name, inbound.Count, uids.Count), LogLevel.Informational);
}
else
{
WriteLog(string.Format("Processing Mailbox: {0} : {1} : {2} Mesages ({3} new)", mailbox.Alias, mailbox.Name, inbound.Count, uids.Count), LogLevel.Verbose);
}
if (uids.Count() == 0)
{
return;
}
// Set LastUID to the last message in the mailbox.
mailbox.LastUID = uids.Last();
foreach (string uid in uids)
{
int size = inbound.GetMessageSize(uid);
Queue q = new Queue()
{
Uid = uid,
Owner = mailbox.Alias,
Size = size
};
if (size > 2 * 1024 * 1024) // 2Mb
{
//TODO: Shorten size.
// Queue the larger messages, so we can get the smaller ones faster.
WriteLog(String.Format("Queued Message {0}:{1} (Size {2:N})", mailbox.Alias, uid, size), LogLevel.Verbose);
queue.Add(q);
}
else
{
WriteLog(String.Format("Downloading Message {0}:{1} (Size {2:N})", mailbox.Alias, uid, size), LogLevel.Verbose);
q.Status = Status.Downloading;
queue.Add(q);
TransferMessage(inbound, outbound, q);
}
}
//TODO: Keep x days
Thread.Sleep(1000);
foreach (string uid in uids)
{
Queue q = queue.Find(c => c.Uid == uid);
if (q != null)
{
if (q.Status == Status.Complete)
{
inbound.DeleteMessage(uid);
}
}
}
if (inbound.IsConnected)
{
inbound.Disconnect(true);
}
if (inbound != null)
{
inbound.Dispose();
}
}
catch (Exception e)
{
WriteLog(String.Format("Error downloading from {0} : {1}", mailbox.Inbound.Alias, e.Message), LogLevel.Error);
return;
}
}
if (outbound.IsConnected)
{
outbound.Disconnect(true);
}
if (outbound != null)
{
outbound.Dispose();
}
}
}
public Pop3Client(Server server, Mailbox mailbox)
{
Server = server;
Mailbox = mailbox;
}