public static void TickSignal(string sessionID)
{
var obj = new object();
try
{
lock (obj)
{
sessionID = HttpContext.Current.Server.UrlDecode(sessionID);
var strLicense = LicenseGear.GetLicense();
var ds = CryptDataSet.GetDataSet(strLicense);
sessionID = LicenseInfo.Instance.Crypter.DecryptString(sessionID);
var rwSession = ds.Tables["dtSessions"].Select("SessionID = '" + sessionID + "'").FirstOrDefault();
if (rwSession != null)
{
rwSession["LastSignal"] = DateTime.Now;
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
}
}
catch (Exception ex)
{
HttpContext.Current.Trace.Warn(ex.ToString());
throw;
}
}
public static void Init(string request)
{
request = LicenseInfo.Instance.Crypter.DecryptString(request);
var supportInfo = request.GetSupportInfo();
// We try to load the license file on every request
var strLicense = LicenseGear.GetLicense();
if (string.IsNullOrEmpty(strLicense))
{
return;
}
// Fake Application_OnStart
var ds = CryptDataSet.GetDataSet(strLicense);
// Clears any active license for this server, thus it supports web farm
var delete = false;
ds.Tables["dtSessions"].Select("ServerName = '" + supportInfo["ServerName"] + "'").ToList().ForEach(
delegate(DataRow rw)
{
delete = true;
rw.Delete();
});
if (delete)
{
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
}
public static void Logout(string serverName, string sessionID)
{
// We try to load the license file on every request
var strLicense = LicenseGear.GetLicense();
if (string.IsNullOrEmpty(strLicense))
{
return;
}
// Fake Application_OnStart
var ds = CryptDataSet.GetDataSet(strLicense);
// Clears any active license for this server, thus it supports web farm
var delete = false;
ds.Tables["dtSessions"].Select("ServerName = '" + serverName + "' AND SessionID = '" + sessionID + "'").ToList().ForEach(
delegate(DataRow rw)
{
delete = true;
rw.Delete();
});
if (delete)
{
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
}
public static string ValidateLicenseAccess(string request)
{
var lockObject = new object();
lock (lockObject)
{
var ret = string.Empty;
request = LicenseInfo.Instance.Crypter.DecryptString(request);
var supportInfo = request.GetSupportInfo();
// We try to load the licenses file on every request
var strLicense = LicenseGear.GetLicense();
// Check if we have the licensing file set up
if (string.IsNullOrEmpty(strLicense))
{
// We don't have the license file
ret += "&result=" + LicenseNotFound;
}
else
{
var ds = CryptDataSet.GetDataSet(strLicense);
var itSelf = false;
ds.Tables["dtSessions"].Select().ToList().ForEach(
delegate(DataRow rw)
{
var lastSignal = (DateTime)rw["LastSignal"];
var signalBoundary = DateTime.Now.AddMilliseconds(-int.Parse(supportInfo["SessionRefreshTimeoutWithTolerance"]));
if (lastSignal >= signalBoundary)
{
}
else
{
// Session has expired
// User browser isn't at AgroERP
if (rw["SessionID"].ToString() == supportInfo["SessionID"])
{
itSelf = true;
}
rw.Delete();
}
});
ds.AcceptChanges();
if (itSelf)
{
ret += "&result=" + LicenseTimeout;
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
else
{
if (!LicenseGear.IsAccessAllowed(ds, supportInfo["SessionID"]))
{
// Fake Session_OnStart
var doorState = DoorStateUndefined;
try
{
var numberOfLicenses = int.Parse(CryptDataSet.GetConfigurationValue(ds, "NumberOfLicenses"));
var activeLicenses = ds.Tables["dtSessions"].Rows.Count;
if (numberOfLicenses != -1)
{
if (activeLicenses < numberOfLicenses)
{
// Increments one session
var rw = ds.Tables["dtSessions"].NewRow();
rw["ServerName"] = supportInfo["ServerName"];
rw["SessionID"] = supportInfo["SessionID"];
rw["LastSignal"] = DateTime.Now;
ds.Tables["dtSessions"].Rows.Add(rw);
doorState = DoorStateOK;
}
else
{
// No more licenses
doorState = DoorStateClosed;
}
}
else
{
// Unlimited licenses
doorState = DoorStateOK;
}
if (doorState == DoorStateOK)
{
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
}
catch (ThreadAbortException)
{
}
catch (Exception ex)
{
// Error
// We cannot allow any user access the system
doorState = DoorStateError;
ret += "&errorMessage=" + ex.Message;
ret += "&stackTrace=" + ex;
}
ret += "&result=" + doorState;
}
else
{
var rwSession = ds.Tables["dtSessions"].Select("SessionID = '" + supportInfo["SessionID"] + "'").FirstOrDefault();
var lastRequest = DateTime.Now;
if (rwSession["LastRequest"] != DBNull.Value)
{
lastRequest = (DateTime)rwSession["LastRequest"];
}
var requestBoundary = DateTime.Now.AddMinutes(-int.Parse(supportInfo["SessionTimeout"]));
// Is It an "Human" Request?
// Yes
if (lastRequest < requestBoundary)
{
// Session has expired
// User browser isn't at AgroERP
rwSession.Delete();
ret += "&result=" + SessionExpired;
}
else
{
// Resets Real Request ticket
rwSession["LastRequest"] = DateTime.Now;
// Resets LastSignal ticket
rwSession["LastSignal"] = DateTime.Now;
ret += "&result=" + RequestOK;
}
LicenseGear.UpdateLicense(CryptDataSet.EncryptDataSet(ds));
}
}
}
return(ret.Substring(1) + "&guid=" + Guid.NewGuid().ToString());
}
}
