/// <summary>
/// Sends a message based on the configured message templates
/// Allows for body to be formatted with arguments.
/// </summary>
/// <param name="messageKey">key of the message configured during the setup</param>
/// <param name="args">array of arguments (optional)</param>
private void SendNotificationsPriv(string flowName, string transactionId, string toEmailAddresses, string notificationKey,
string subject, Stream attachmentContent, string attachmentName,
string[] args)
{
if (string.IsNullOrEmpty(toEmailAddresses))
{
return;
}
Activity activity =
new Activity(NodeMethod.None, flowName, null, ActivityType.Info, transactionId, null, null);
try
{
string messageBody = LoadNotificationBody(notificationKey);
if (args != null)
{
for (int i = 0; i < args.Length; ++i)
{
args[i] = HttpUtility.HtmlEncode(args[i]).Replace(Environment.NewLine, "<br/>");
}
messageBody = string.Format(messageBody, args);
}
using (MailMessage msg = new MailMessage(FromEmailAddress,
toEmailAddresses,
subject, messageBody))
{
msg.IsBodyHtml = true;
if (attachmentContent != null)
{
Attachment attachment = new Attachment(attachmentContent, attachmentName);
msg.Attachments.Add(attachment);
}
//SaveMailMessage(msg);
int retryCount = 3;
do
{
try
{
SmtpClient smtpClient = new SmtpClient(SmtpHost, SmtpPort);
smtpClient.DeliveryMethod = DeliveryMethod;
smtpClient.EnableSsl = _smtpEnableSsl;
//If an exception is thrown, this setting causes max cpu usage on a background worker thread for no good reason, so I'm commenting it out:
//smtpClient.ServicePoint.MaxIdleTime = 1;
if (!string.IsNullOrEmpty(_smtpUsername))
{
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = new System.Net.NetworkCredential(_smtpUsername, _smtpPassword);
}
smtpClient.Send(msg);
retryCount = 1;
}
catch (Exception smtpException)
{
if (retryCount > 1)
{
activity.AppendFormat("Failed to send email notification: From ({0}), To ({1}), Type ({2}), DeliveryMethod ({3}), EnableSsl ({4}), SmtpHost ({5}), SmtpPort ({6}), SmtpUsername ({7})",
FromEmailAddress, toEmailAddresses, notificationKey,
DeliveryMethod, _smtpEnableSsl, SmtpHost, SmtpPort, _smtpUsername ?? string.Empty);
activity.AppendFormat("EXCEPTION: {0}", ExceptionUtils.ToShortString(smtpException));
activity.AppendFormat("Retrying email send ...");
}
else
{
throw;
}
}
} while (--retryCount > 0);
}
activity.AppendFormat("Successfully sent \"{0}\" email notification to \"{1}\"",
notificationKey, toEmailAddresses);
ActivityManager.Log(activity);
}
catch (Exception ex)
{
string message =
string.Format("Failed to send email notification: From ({0}), To ({1}), Type ({2}), DeliveryMethod ({3}), EnableSsl ({4}), SmtpHost ({5}), SmtpPort ({6})",
FromEmailAddress, toEmailAddresses, notificationKey,
DeliveryMethod, _smtpEnableSsl, SmtpHost, SmtpPort);
activity.AppendFormat(message);
activity.AppendFormat("EXCEPTION: {0}", ExceptionUtils.ToShortString(ex));
activity.Type = ActivityType.Error;
ActivityManager.Log(activity);
LOG.Error(message, ex);
if (ThrowOnNotificationFailure)
{
throw;
}
}
}