static CertificatesMonitor()
{
_enquiries = new MemoryCache("CertificatesMonitor");
using (var db = new NotificationCenterContext())
{
_notificationEventId = db.NotificationEvents.Single(ne => ne.RaiseCriteria == NotificationRaiseCriteria.ExpiredCertificate).Id;
var baseOffset = DateTimeOffset.Now.AddHours(24);
var now = DateTime.UtcNow;
foreach (var c in db.ClientCertificates.Where(c => c.ValidFrom <= now && c.ValidUntil >= now))
{
_enquiries.Set(c.ClientId.ToString(), c.ValidUntil, new CacheItemPolicy()
{
AbsoluteExpiration = c.ValidUntil,
RemovedCallback = ReCheckCertificate
});
}
}
}
private static void ReCheckCertificate(CacheEntryRemovedArguments arg)
{
var key = int.Parse(arg.CacheItem.Key);
var oldState = (DateTime)arg.CacheItem.Value;
using (var db1 = new NotificationCenterContext())
{
var cc = db1.ClientCertificates.Single(c => c.ClientId == key);
db1.Notifications.Add(new Notification()
{
CreatedOn = DateTime.UtcNow,
Message = $"Certificate {cc.SetialNumber} expired.",
NotificationEventId = _notificationEventId,
ReferenceRecord = key,
Deleted = false,
Seen = false
});
db1.SaveChanges();
}
}
public void Dispose()
{
_db?.Dispose();
_db = null;
}
public ServiceBase()
{
_db = new NotificationCenterContext();
}
