/// <summary>
/// - obtiene mensajes no leídos del servidor POP3
/// - how to download messages not seen before
/// (notice that the POP3 protocol cannot see if a message has been read on the server
/// before. Therefore the client need to maintain this state for itself)
/// </summary>
/// <param name="hostname">Hostname of the server. For example: pop3.live.com</param>
/// <param name="port">Host port to connect to. Normally: 110 for plain POP3, 995 for SSL POP3</param>
/// <param name="useSsl">Whether or not to use SSL to connect to server</param>
/// <param name="username">Username of the user on the server</param>
/// <param name="password">Password of the user on the server</param>
/// <param name="seenUids">List of UID's of all messages seen before. New message UID's will be added to the list. Consider using a HashSet if you are using >= 3.5 .NET
/// </param>
/// <returns>A List of new Messages on the server</returns>
public List <IMensajeEMail> FetchUnseenMessages(string hostname, int port, bool useSsl, string username, string password, List <string> seenUids)
{
try
{
iErr = 0;
sMsj = string.Empty;
// The client disconnects from the server when being disposed
using (Pop3Client client = new Pop3Client())
{
// Connect to the server
client.Connect(hostname, port, useSsl);
// Authenticate ourselves towards the server
client.Authenticate(username, password);
// Fetch all the current uids seen
List <string> uids = client.GetMessageUids();
// Create a list we can return with all new messages
//_lMensajes = new List<XDocument>();
_newXmlMessages = new List <IMensajeEMail>();
// Messages are numbered in the interval: [1, messageCount]
// Ergo: message numbers are 1-based.
// Most servers give the latest message the highest number
int messageCount = uids.Count();
int primeros = 5;
for (int i = messageCount; i > 0 && i > messageCount - primeros; i--)
{
string currentUidOnServer = uids[i - 1];
if (!seenUids.Contains(currentUidOnServer))
{
// the uids list is in messageNumber order - meaning that the first
// uid in the list has messageNumber of 1, and the second has
// messageNumber 2. Therefore we can fetch the message using
// i + 1 since messageNumber should be in range [1, messageCount]
Message unseenMessage = client.GetMessage(i);
IMensajeEMail mensajeRecibido = (IMensajeEMail) new MensajeEMail(unseenMessage);
mensajeRecibido.FindXmlInMessage();
iErr = mensajeRecibido.IErr;
// Add the message to the new messages
if (iErr == 0)
{
_newXmlMessages.Add(mensajeRecibido);
//_lMensajes.Add(_docXml);
}
// Add the uid to the seen uids, as it has now been seen
seenUids.Add(currentUidOnServer);
}
}
// Return our new found messages
return(_newXmlMessages);
}
}
catch (Exception fu)
{
iErr++;
sMsj = "Excepción al leer correos. " + fu.Message + "[MonitorDeMensajes.FetchUnseenMessages]";
return(null);
}
}
/// <summary>
/// Obtiene mensajes no leídos con adjunto xml del servidor POP3 en la lista _newXmlMessages
/// Los mensajes no leídos que no tienen un xml adjunto están en la lista _seenUids
/// (notice that the POP3 protocol cannot see if a message has been read on the server
/// before. Therefore the client need to maintain this state for itself)
/// 5/2/15 jcf Si encuentra un mail defectuoso lo salta y continúa con el resto
/// </summary>
/// <param name="hostname">Hostname of the server. For example: pop3.live.com</param>
/// <param name="port">Host port to connect to. Normally: 110 for plain POP3, 995 for SSL POP3</param>
/// <param name="useSsl">Whether or not to use SSL to connect to server</param>
/// <param name="username">Username of the user on the server</param>
/// <param name="password">Password of the user on the server</param>
/// <param name="seenUids">List of UID's of all messages seen before. New message UID's will be added to the list. Consider using a HashSet if you are using >= 3.5 .NET
/// </param>
/// <returns>A List of new Messages on the server on _newMessages</returns>
public void ObtieneMensajesXmlNoLeidos()
{
try
{
iErr = 0;
sMsj = string.Empty;
_newXmlMessages = new List <IMensajeEMail>();
// The client disconnects from the server when being disposed
using (Pop3Client client = new Pop3Client())
{
// Connect to the server
client.Connect(_emailPop3, _emailPortIn, _Param.emailSsl);
// Authenticate ourselves towards the server
client.Authenticate(_Param.emailUser, _Param.emailPwd);
var notSeenUids = uids.Except(_seenUids);
//notSeenUids = notSeenUids.Where(x => int.Parse(x) > 19674); //test
int numCorreos = notSeenUids.Count();
foreach (var unv in notSeenUids)
{
string currentUidOnServer = unv.ToString();
try
{
// the uids list is in messageNumber order - meaning that the first
// uid in the list has messageNumber of 1, and the second has
// messageNumber 2. Therefore we can fetch the message using
// i + 1 since messageNumber should be in range [1, messageCount]
int posiMensaje = uids.IndexOf(currentUidOnServer);
Message unseenMessage = client.GetMessage(posiMensaje + 1);
IMensajeEMail mensajeRecibido = (IMensajeEMail) new MensajeEMail(unseenMessage);
mensajeRecibido.Uid = currentUidOnServer;
bool existeXml = mensajeRecibido.FindXmlInMessage();
iErr = mensajeRecibido.IErr;
// Add the message to the new messages
if (iErr == 0 && existeXml)
{
_newXmlMessages.Add(mensajeRecibido);
// Add the uid to the seen uids, as it has now been seen
_seenUids.Add(currentUidOnServer);
MuestraAvance(100 / numCorreos, "Correo recibido el " + mensajeRecibido.dateSent.ToString() + " Adjunto: " + mensajeRecibido.nombreArchivoXml);
}
else
{
//_newNotXmlMessages.Add(currentUidOnServer);
MuestraAvance(100 / numCorreos, "Correo recibido sin adjunto el " + mensajeRecibido.dateSent.ToString());
}
}
catch (Exception em)
{
sMsj = "Excepción desconocida al abrir el correo con Id: " + currentUidOnServer + "[MonitorDeMensajes.ObtieneMensajesXmlNoLeidos] " + em.Message;
//_seenUids.Add(currentUidOnServer);
MuestraAvance(100 / numCorreos, sMsj);
}
}
}
}
catch (Exception fu)
{
iErr++;
sMsj = "Excepción al leer correos. " + fu.Message + "[MonitorDeMensajes.ObtieneMensajesXmlNoLeidos]";
}
}
