//
//==========================================================================================
/// <summary>
/// process a bounce notification
/// </summary>
/// <param name="cp"></param>
/// <param name="message"></param>
private static void processSesBounceNotificationMessage(CPBaseClass cp, AmazonSesBounceNotification message)
{
if (message.notificationType == "Bounce")
{
//
// -- process bounce messages
string bounceMsg = message.bounce.timestamp.ToString() + " AWS email bounce notification, type: " + message.bounce.bounceType;
if (!string.IsNullOrEmpty(message.bounce.bounceSubType))
{
//
// -- append bounce sub type to name
bounceMsg += ", " + message.bounce.bounceSubType;
}
switch (message.bounce.bounceType)
{
case "Transient":
//
// -- Remove all recipients that generated a permanent bounce or an unknown bounce.
foreach (var recipient in message.bounce.bouncedRecipients)
{
transientFail(cp, recipient.emailAddress, bounceMsg);
}
break;
default:
//
// -- Remove all recipients that generated a permanent bounce or an unknown bounce.
foreach (var recipient in message.bounce.bouncedRecipients)
{
permanentFail(cp, recipient.emailAddress, bounceMsg);
}
break;
}
}
}
private static void ManuallyReviewBounce(AmazonSesBounceNotification bounce)
{
throw new NotImplementedException();
}
//
//==========================================================================================
/// <summary>
/// addon method
/// </summary>
/// <param name="cp"></param>
/// <returns></returns>
public override object Execute(Contensive.BaseClasses.CPBaseClass cp)
{
try {
const string spAwsSecretAccessKey = "AWS Secret Access Key";
const string spAwsAccessKeyId = "AWS Access Key Id";
const string spAwsSQSBounceEmailQueueEndpoint = "AWS SQS Bounce Email Queue Endpoint";
//
bool awsAllowBounceProcess = cp.Site.GetBoolean("AWS SES Allow Bounce Process");
if (awsAllowBounceProcess)
{
//
// -- aws keys, use the server config, but allow over-ride by site property
string awsAccessKeyId = cp.Site.GetText(spAwsAccessKeyId);
if (string.IsNullOrEmpty(awsAccessKeyId))
{
awsAccessKeyId = cp.ServerConfig.awsAccessKey;
}
string awsSecretAccessKey = cp.Site.GetText(spAwsSecretAccessKey);
if (string.IsNullOrEmpty(awsSecretAccessKey))
{
awsSecretAccessKey = cp.ServerConfig.awsSecretAccessKey;
}
//
// -- settings
string awsSQSBounceEmailQueueEndpoint = cp.Site.GetText(spAwsSQSBounceEmailQueueEndpoint);
//
// -- setup aws client
AmazonSQSClient sqsClient = new AmazonSQSClient(awsAccessKeyId, awsSecretAccessKey, Amazon.RegionEndpoint.USEast1);
ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest {
QueueUrl = awsSQSBounceEmailQueueEndpoint,
MaxNumberOfMessages = 10
};
//
// -- download a message from queue, process and repeat until no more
while (true)
{
ReceiveMessageResponse receiveMessageResponse = sqsClient.ReceiveMessage(receiveMessageRequest);
if (receiveMessageResponse.Messages.Count == 0)
{
//
// -- no message, exit loop
break;
}
foreach (Message msg in receiveMessageResponse.Messages)
{
//
// -- convert the Amazon SNS message into a JSON object.
AmazonSqsNotification notification = Newtonsoft.Json.JsonConvert.DeserializeObject <AmazonSqsNotification>(msg.Body);
if (notification.type == "Notification")
{
//
// -- process SES bounce notification.
AmazonSesBounceNotification message = Newtonsoft.Json.JsonConvert.DeserializeObject <AmazonSesBounceNotification>(notification.message);
processSesBounceNotificationMessage(cp, message);
}
else if (notification.type == null)
{
//
// --unknown type, assume valid message
AmazonSesBounceNotification message = Newtonsoft.Json.JsonConvert.DeserializeObject <AmazonSesBounceNotification>(msg.Body);
processSesBounceNotificationMessage(cp, message);
}
//
// -- delete the processed message from the SES queue
var deleteMessageRequest = new DeleteMessageRequest {
QueueUrl = awsSQSBounceEmailQueueEndpoint,
ReceiptHandle = msg.ReceiptHandle
};
sqsClient.DeleteMessage(deleteMessageRequest);
}
}
//
// -- transient bounces beyond the grace period - convert to permanent failures
using (CPCSBaseClass cs = cp.CSNew()) {
if (cs.Open("email bounce list", "(transient=1)and(transientFixDeadline<" + cp.Db.EncodeSQLDate(DateTime.Now) + ")"))
{
do
{
permanentFail(cp, cs.GetText("name"), DateTime.Now.ToString() + " converted from transient to permanent because grace period past with no action, original failure[" + cs.GetText("details") + "]");
cs.GoNext();
} while (cs.OK());
}
cs.Close();
}
}
return(string.Empty);
} catch (Exception ex) {
cp.Site.ErrorReport(ex);
return(string.Empty);
}
}
