public static LicenseValidationState CheckLicenseStateNew(DateTime registrationDate, DateTime sessionStartDate, DateTime sessionEndDate, out string message, out bool deleteVideo)
{
LicenseValidationState currentState = LicenseValidationState.Valid;
deleteVideo = false;
message = "";
DateTime startDate = new DateTime();
DateTime lastAccessTime = new DateTime();
DateTime currentDateTime = DateTime.Now;
// if registration date is between SessionStart and SessionEnd date
if (sessionStartDate.CompareTo(registrationDate) < 0 && sessionEndDate.CompareTo(registrationDate) > 0)
{
startDate = DateTime.Parse(registrationDate.AddSeconds(-registrationDate.Second).AddMinutes(-registrationDate.Minute).ToString("dd-MMM-yyyy hh:00 tt"), CultureInfo.InvariantCulture);
}
// Future registration date
else if (sessionStartDate.CompareTo(registrationDate) > 0)
{
startDate = sessionStartDate;
}
// Expired license
else if (sessionEndDate.CompareTo(registrationDate) < 0)
{
deleteVideo = true;
currentState = LicenseValidationState.Expired;
message = licenseExpiredMessage;
return(currentState);
}
lastAccessTime = startDate;
// RegDate > CurrentDate
if (startDate.CompareTo(currentDateTime) > 0)
{
currentState = LicenseValidationState.InvalidLicense;
message = invalidLicenseMessage;
}
// License is expired - Delete All Videos
else if (sessionEndDate < currentDateTime)
{
deleteVideo = true;
currentState = LicenseValidationState.Expired;
message = licenseExpiredMessage;
}
// Clock time is back from current time -> Invalid Clock
else if (lastAccessTime > currentDateTime) // && (registrationDate < currentDateTime && currentDateTime > clientInfo.ExpiryDate))
{
currentState = LicenseValidationState.InvalidClock;
message = invalidClockMessage;
}
return(currentState);
}
private LicenseValidationState ValidateLicenseNew(RegInfoFB firebaseRegistrationInfo, ClientInfo localClientInfo, string localMACAddress, out string errorMessage, out bool deleteVideos, out bool skipLoginScreen)
{
errorMessage = ""; deleteVideos = false; skipLoginScreen = false;
LicenseValidationState licenseState = LicenseValidationState.None;
// Licese already expired
if (CommonAppStateDataHelper.ClientInfoObject.Expired)
{
deleteVideos = true;
errorMessage = LicenseHelper.licenseExpiredMessage;
licenseState = LicenseValidationState.Expired;
}
else if (firebaseRegistrationInfo == null && string.IsNullOrEmpty(localClientInfo.MacAddress) == true)
{
errorMessage = LicenseHelper.onlineConnectivityIsMust;
licenseState = LicenseValidationState.ConnectivityRequiredForValidation;
}
else if (string.IsNullOrEmpty(localMACAddress) == true)
{
errorMessage = LicenseHelper.invalidLicenseMessage;
licenseState = LicenseValidationState.EmptyMacAddress;
}
else
{
DateTime sessionEndDate = localClientInfo.SessionEndDate;
if (firebaseRegistrationInfo != null)
{
sessionEndDate = firebaseRegistrationInfo.ExpiryDate;
}
licenseState = LicenseHelper.CheckLicenseStateNew(localClientInfo.RegistrationDate, localClientInfo.SessionStartDate, sessionEndDate, out errorMessage, out deleteVideos);
// Validate Firebase MacAddress Check
if (licenseState == LicenseValidationState.Valid)
{
licenseState = LicenseHelper.ValidateMacAddress(firebaseRegistrationInfo, localClientInfo, localMACAddress, out errorMessage, out deleteVideos, out skipLoginScreen);
}
}
return(licenseState);
}
private void OnAfterLicesseValidation(string message, bool deleteVideos, LicenseValidationState licenseState)
{
if (deleteVideos && licenseState == LicenseValidationState.Expired)
{
CommonAppStateDataHelper.ClientInfoObject.Expired = true;
CommonAppStateDataHelper.LicenseError = true;
if (Directory.Exists(ClientHelper.GetClientVideoFilePath(_clientInfo.SchoolId, _clientInfo.SchoolCity)))
{
Directory.Delete(ClientHelper.GetClientVideoFilePath(_clientInfo.SchoolId, _clientInfo.SchoolCity), true);
}
MessageBox.Show(message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
this.Close();
}
else if (licenseState != LicenseValidationState.Valid)
{
CommonAppStateDataHelper.LicenseError = true;
MessageBox.Show(message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
this.Close();
}
}
private void ValidateLicense()
{
string message = ""; bool deleteVideos = false;
LicenseValidationState licenseState = LicenseValidationState.None;
if (CommonAppStateDataHelper.ClientInfoObject.Expired)
{
deleteVideos = true;
message = LicenseHelper.licenseExpiredMessage;
licenseState = LicenseValidationState.Expired;
}
else
{
licenseState = LicenseHelper.CheckLicenseState(_clientInfo, out message, out deleteVideos);
}
if (deleteVideos && licenseState == LicenseValidationState.Expired)
{
CommonAppStateDataHelper.ClientInfoObject.Expired = true;
CommonAppStateDataHelper.LicenseError = true;
if (Directory.Exists(ClientHelper.GetClientVideoFilePath(_clientInfo.SchoolId, _clientInfo.SchoolCity)))
{
Directory.Delete(ClientHelper.GetClientVideoFilePath(_clientInfo.SchoolId, _clientInfo.SchoolCity), true);
}
MessageBox.Show(message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
this.Close();
}
else if (licenseState != LicenseValidationState.Valid)
{
CommonAppStateDataHelper.LicenseError = true;
MessageBox.Show(message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
this.Close();
}
}
private void frmLogin_Load(object sender, EventArgs e)
{
try
{
label11.Location = new System.Drawing.Point(panel4.Width / 2 - 150, 11);
label2.Location = new System.Drawing.Point(panel4.Width / 2 - 75, 15);
this.progressBar1.Visible = true;
this.progressBar1.Enabled = true;
this.progressBar1.Value = 10;
//ClientHelper.GetClientThumbanailPath();
_clientInfoFilePath = ClientHelper.GetClientInfoFilePath();
if (!File.Exists(_clientInfoFilePath))
{
MessageBox.Show("Invalid Configuration", "Configuration Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Close();
return;
}
this.progressBar1.Value = 30;
CommonAppStateDataHelper.ClientInfoObject = Cryptograph.DecryptObject <ClientInfo>(_clientInfoFilePath);
_clientInfo = CommonAppStateDataHelper.ClientInfoObject;
this.progressBar1.Value = 70;
if (_clientInfo != null)
{
lblSessionYears.Text = ClientHelper.GetSessionString(_clientInfo.SessionString);
lblSchoolWelcome.Text = ClientHelper.GetWelcomeString(_clientInfo.SchoolName, _clientInfo.SchoolCity, _clientInfo.SchoolId);
lblExpireDate.Text = ClientHelper.GetExpiryDateString(_clientInfo.SessionEndDate);
_currentMacAddress = MacAddressHelper.GetMacAddress();
//_currentMacAddress = "B82A72A780B7";
_firebaseRegInfo = GetFirebaseRegistrationInformation();
string errorMessage = "";
bool deleteVideos = false;
bool skipLoginScreen = false;
// Check license session duraion
LicenseValidationState licenseState = ValidateLicenseNew(_firebaseRegInfo, _clientInfo, _currentMacAddress, out errorMessage, out deleteVideos, out skipLoginScreen);
TextFileLogger.Log("License State" + licenseState.ToString());
if (licenseState != LicenseValidationState.Valid)
{
OnAfterLicesseValidation(errorMessage, deleteVideos, licenseState);
}
_showLoginForm = !skipLoginScreen;
this.progressBar1.Value = 100;
//// update mac address in local client info file
//if (licenseState == LicenseValidationState.Valid)
//{
// this.progressBar1.Value = 90;
// //if (string.IsNullOrEmpty(CommonAppStateDataHelper.ClientInfoObject.MacAddress))
// //{
// // _showLoginForm = true;
// //}
// //else
// //{
// // _showLoginForm = false;
// //}
//}
//else
//{
// this.progressBar1.Value = 100;
// Application.Exit();
//}
}
else
{
throw new Exception("Invalid client info configuration.");
}
}
catch (Exception ex)
{
ExceptionHandler.HandleException(ex);
MessageBox.Show(ex.Message + "\n" + ex.StackTrace, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public static LicenseValidationState ValidateMacAddress(RegInfoFB firebaseRegistrationInfo, ClientInfo localClientInfo, string localMacAddress, out string message, out bool deleteVideo, out bool skipLoginScreen)
{
//bool firebaseLicenseValidation = false;
LicenseValidationState licenseState = LicenseValidationState.None;
skipLoginScreen = false;
deleteVideo = false;
message = "";
// Device is online
if (firebaseRegistrationInfo != null)
{
//1) localClientInfo.MacAddress <> '' AND localClientInfo.MacAddress is in FirebaseMacAddressList == True
// Allow to login without authentication
if (string.IsNullOrEmpty(localClientInfo.MacAddress) == false)
{
// If local mac address is not matching with saved mac address.
if (localClientInfo.MacAddress.ToLower().Equals(localMacAddress.ToLower()) == false)
{
licenseState = LicenseValidationState.SavedMacAddressMismatched;
skipLoginScreen = false;
message = invalidLicenseMessage;
deleteVideo = true;
}
else if (firebaseRegistrationInfo.MacAddresses.Contains(localClientInfo.MacAddress) == true)
{
// maxlicense is valid and user already authenticated
skipLoginScreen = true;
licenseState = LicenseValidationState.Valid;
}
else if (firebaseRegistrationInfo.MacAddresses.Contains(localClientInfo.MacAddress) == false)
{
// 2.1) If FirebaseMacAddressList.Count >= MaxLicenseCount
// Raise Error and Exit Application
if (firebaseRegistrationInfo.MacAddresses.Count >= firebaseRegistrationInfo.NoOfPcs)
{
licenseState = LicenseValidationState.MaxMacAddressLimitExceed;
skipLoginScreen = false;
message = maxLicenseOccupiedMessage;
deleteVideo = true;
}
// 2.2) IF FirebaseMacAddressList.Count < MaxLicenseCount
// Add current macaddress in FirebaseMacAddressList and allow login
if (firebaseRegistrationInfo.MacAddresses.Count < firebaseRegistrationInfo.NoOfPcs)
{
licenseState = LicenseValidationState.Valid;
// Add current macaddress in FirebaseMacAddressList
//_addMacAddressInFirebase = true;
skipLoginScreen = false;
}
}
}
// 3) If localClientInfo.MacAddress == '' Then
else if (string.IsNullOrEmpty(localClientInfo.MacAddress))
{
// 3.1) If FirebaseMacAddressList.Count >= MaxLicenseCount
// Raise Error and Exit Application
if (firebaseRegistrationInfo.MacAddresses.Count >= firebaseRegistrationInfo.NoOfPcs)
{
licenseState = LicenseValidationState.MaxMacAddressLimitExceed;
skipLoginScreen = false;
message = maxLicenseOccupiedMessage;
deleteVideo = true;
}
// 3.2) If FirebaseMacAddressList.Count < MaxLicenseCount
else if (firebaseRegistrationInfo.MacAddresses.Count < firebaseRegistrationInfo.NoOfPcs)
{
licenseState = LicenseValidationState.Valid;
// On sucessful authentication, save local mac address to Firebase.
// Save local mac address to local client info file
//_addMacAddressInFirebase = true;
// Ask user to enter login credentials
skipLoginScreen = false;
}
}
}
// Device is offline
else
{
// 1) localClientInfo.MacAddress == ''
// Ask user for autentication
if (string.IsNullOrEmpty(localClientInfo.MacAddress))
{
skipLoginScreen = false;
}
// 2) localClientInfo.MacAddress <> ''
// Allow user to use application without authentication
else if (string.IsNullOrEmpty(localClientInfo.MacAddress) == false)
{
if (localClientInfo.MacAddress.ToLower().Equals(localMacAddress.ToLower()))
{
skipLoginScreen = true;
licenseState = LicenseValidationState.Valid;
}
else
{
skipLoginScreen = false;
licenseState = LicenseValidationState.ConnectivityRequiredForValidation;
message = invalidLicenseMessage;
}
// Validate license date;
}
}
return(licenseState);
}
