public Task InterceptSubscriptionAsync(
MqttSubscriptionInterceptorContext context)
{
if (context == null)
{
return(Task.CompletedTask);
}
if (context.TopicFilter.Topic.StartsWith("platooning/broadcast/"))
{
var tree = context.TopicFilter.Topic.Split('/');
//var plotooningId = context.TopicFilter.Topic.Replace("platooning/broadcast/", "");
var platoon = tree.Length > 2 ? _repo.GetPlatoonById(tree[2]) : null;
if (platoon == null)
{
context.AcceptSubscription = false;
context.CloseConnection = true;
_logger.LogInformation(
$"Reject for not found platoonId on our system | ClientId = {context.ClientId}, TopicFilter = {context.TopicFilter},"
+ $" AcceptSubscription = {context.AcceptSubscription}, SessionItems = {context.SessionItems}");
}
try
{
if (_repo.GetPlatoon(context.ClientId) == null)
{
context.AcceptSubscription = false;
context.CloseConnection = true;
_logger.LogInformation(
$"Reject for not found joined ClientId = {context.ClientId}, TopicFilter = {context.TopicFilter},"
+ $" AcceptSubscription = {context.AcceptSubscription}, SessionItems = {context.SessionItems}");
}
}
catch (Exception exception)
{
context.AcceptSubscription = false;
context.CloseConnection = true;
_repo.AddLogAsync(new Log()
{
Exception =
$"Close connection for subscriptions Exception MqttSubscriptionInterceptorContext = {exception.StackTrace}",
CreationDate = DateTime.Now
});
_logger.LogError($"Close connection for subscriptions Exception MqttSubscriptionInterceptorContext = {exception.StackTrace}");
}
}
context.AcceptSubscription = true;
_logger.LogInformation(
$"New Subcription: ClientId = {context.ClientId}, TopicFilter = {context.TopicFilter},"
+ $" AcceptSubscription = {context.AcceptSubscription}, SessionItems = {context.SessionItems}");
return(Task.CompletedTask);
}