private void CloseMailClient(MailClient client, MailBox mailbox, ILogger log)
{
if (client == null)
{
return;
}
try
{
client.Authenticated -= ClientOnAuthenticated;
client.GetMessage -= ClientOnGetMessage;
client.Cancel();
client.Dispose();
}
catch (Exception ex)
{
log.Error(
"CloseMailClient(Tenant = {0}, MailboxId = {1}, Address = '{2}') Exception: {3}",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail, ex.Message);
}
}
private MailClient CreateMailClient(MailBox mailbox, ILogger log, CancellationToken cancelToken)
{
MailClient client = null;
var connectError = false;
Stopwatch watch = null;
if (_tasksConfig.CollectStatistics)
{
watch = new Stopwatch();
watch.Start();
}
var manager = new MailBoxManager(log)
{
AuthErrorWarningTimeout = _tasksConfig.AuthErrorWarningTimeout,
AuthErrorDisableTimeout = _tasksConfig.AuthErrorDisableMailboxTimeout
};
try
{
client = new MailClient(mailbox, cancelToken, _tasksConfig.TcpTimeout,
_tasksConfig.SslCertificateErrorsPermit, _tasksConfig.ProtocolLogPath, log, true);
log.Debug("MailClient.LoginImapPop(Tenant = {0}, MailboxId = {1} Address = '{2}')",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail);
client.Authenticated += ClientOnAuthenticated;
client.LoginImapPop();
}
catch (TimeoutException exTimeout)
{
log.Warn(
"[TIMEOUT] CreateTasks->client.LoginImapPop(Tenant = {0}, MailboxId = {1}, Address = '{2}') Exception: {3}",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail, exTimeout.ToStringDescriptive());
connectError = true;
}
catch (OperationCanceledException)
{
log.Info(
"[CANCEL] CreateTasks->client.LoginImapPop(Tenant = {0}, MailboxId = {1}, Address = '{2}')",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail);
connectError = true;
}
catch (AuthenticationException authEx)
{
log.Error(
"CreateTasks->client.LoginImapPop(Tenant = {0}, MailboxId = {1}, Address = '{2}')\r\nException: {3}\r\n",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail, authEx.ToStringDescriptive());
if (!mailbox.AuthErrorDate.HasValue)
{
manager.SetMailboxAuthError(mailbox, true);
}
connectError = true;
}
catch (Exception ex)
{
log.Error(
"CreateTasks->client.LoginImapPop(Tenant = {0}, MailboxId = {1}, Address = '{2}')\r\nException: {3}\r\n",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail,
ex is ImapProtocolException || ex is Pop3ProtocolException ? ex.Message : ex.ToString());
connectError = true;
}
finally
{
if (connectError)
{
try
{
if (client != null)
{
client.Authenticated -= ClientOnAuthenticated;
client.Cancel();
client.Dispose();
client = null;
}
}
catch (Exception ex)
{
log.Error(
"CreateTasks->client.Dispose(Tenant = {0}, MailboxId = {1}, Address = '{2}') Exception: {3}",
mailbox.TenantId, mailbox.MailBoxId, mailbox.EMail, ex.Message);
client = null;
}
}
if (_tasksConfig.CollectStatistics && watch != null)
{
watch.Stop();
LogStat(CONNECT_MAILBOX, mailbox, watch.Elapsed, connectError);
}
}
return(client);
}