private string[] LicenseInformation()
{
string[] information = { "", "", "", "", "", "" };
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.Decrypt(arr[1].ToString());
var licarr = dec.Split(',');
information[0] = licarr[3];
information[1] = licarr[4];
information[2] = licarr[0];
information[3] = licarr[1];
information[4] = licarr[5];
return(information);
}
private bool CheckTrail()
{
try
{
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.Decrypt(arr[1].ToString());
var licarr = dec.Split(',');
string trail = licarr[5].ToString();
bool check = Convert.ToBoolean(trail);
if (check)
{
return(true);
}
if (!check)
{
return(false);
}
}
catch (Exception ex)
{
MessageBox.Show("An error occured: " + ex.Message.ToString(), "Error - Student Management System", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return(false);
}
private int TrailDaysRemaining()
{
try
{
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.Decrypt(arr[1].ToString());
var licarr = dec.Split(',');
int date = DateTime.Now.Day;
int month = DateTime.Now.Month;
int year = DateTime.Now.Year;
CultureInfo enUS = new CultureInfo("en-US");
DateTime licEndDate;
bool check = DateTime.TryParseExact(licarr[1].ToString(), "dd/MM/yyyy", enUS, DateTimeStyles.None, out licEndDate);
DateTime now = new DateTime(year, month, date);
double day = (licEndDate - now).TotalDays;
int daysremaining = Convert.ToInt32(day);
return(daysremaining);
}
catch (Exception)
{
}
return(0);
}
private void Bwreg_DoWork(object sender, DoWorkEventArgs e)
{
DbEntityRefresh.Refresh(db);
LicenseEntity licdb = new LicenseEntity();
try
{
var a = licdb.Licenses.Where(c => c.SoftwareID == txtpublickey.Text).FirstOrDefault();
if (a != null)
{
var uid = db.Randoms.Where(c => c.ID == 18).FirstOrDefault();
bool IsPayement = a.IsPayment;
if (IsPayement)
{
if (txtlicense.Text == a.LicenseKey)
{
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
string ency = a.LicenseStarts + "," + a.LicenseEnds + "," + uid.Text + "," + a.OwnerName + "," + a.SchoolName + "," + "False";
lines[7] = "Licensed Hash:" + ClsTripleDES.Encrypt(ency);
File.WriteAllLines(path + "/" + filename, lines);
a.InProcess = false;
licdb.Entry(a).State = System.Data.Entity.EntityState.Modified;
licdb.SaveChanges();
validate = true;
}
MessageBox.Show("Student Management System is successfully activated until " + a.LicenseEnds, "Successfully Activated", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
else
{
validate = false;
}
}
else
{
MessageBox.Show("Your request doesnot exist at our License server! Please send request then register!", "Error - Student Management System", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show("An error occured: " + ex.Message.ToString(), "Error - Student Management System", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
licdb.Dispose();
}
}
private bool LicenseValid()
{
try
{
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.Decrypt(arr[1].ToString());
var licarr = dec.Split(',');
CultureInfo enUS = new CultureInfo("en-US");
DateTime licEndDate;
bool check = DateTime.TryParseExact(licarr[1].ToString(), "dd/MM/yyyy", enUS, DateTimeStyles.None, out licEndDate);
var guid = db.Randoms.Where(c => c.ID == 18).FirstOrDefault();
var owner = db.Randoms.Where(c => c.ID == 5).FirstOrDefault();
var school = db.Randoms.Where(c => c.ID == 1).FirstOrDefault();
string LicGuid = licarr[2].ToString();
string LicOwner = licarr[3].ToString();
string LicSchool = licarr[4].ToString();
if (guid.Text.ToString() == LicGuid)
{
if (LicOwner == owner.Text.ToString())
{
if (LicSchool == school.Text.ToString())
{
return(true);
}
}
}
}
catch (Exception)
{
MessageBox.Show("Error! License Not Valid! Contact your Developer!", "Error - Student Management System", MessageBoxButtons.OK, MessageBoxIcon.Error);
Application.Exit();
}
return(false);
}
private string LicenseEnds()
{
var path = Application.StartupPath + @"\bin\";
string filename = "License.lic";
string[] lines = File.ReadAllLines(path + filename);
var arr = lines[7].Split(':');
string dec = ClsTripleDES.Decrypt(arr[1].ToString());
var licarr = dec.Split(',');
return(licarr[1].ToString());
}
private void Restore()
{
System.Threading.Thread.Sleep(5000);
DbEntities newdb = new DbEntities();
DbEntityRefresh.Refresh(newdb);
try
{
sourcepath = txtfilename.Text;
File.Move(sourcepath, Path.ChangeExtension(sourcepath, ".db"));
if (File.Exists(destpath + "/Database.db"))
{
File.Delete(destpath + "/Database.db");
}
File.Copy(Path.GetDirectoryName(sourcepath) + "/Database.db", destpath + "/Database.db");
File.Move(Path.GetDirectoryName(sourcepath) + "/Database.db", Path.ChangeExtension(Path.GetDirectoryName(sourcepath) + "/Database.db", ".backupsms"));
var schoolname = newdb.Randoms.Where(c => c.ID == 1).FirstOrDefault();
var schooladdress = newdb.Randoms.Where(c => c.ID == 2).FirstOrDefault();
var schoolcontact = newdb.Randoms.Where(c => c.ID == 3).FirstOrDefault();
var schoolemail = newdb.Randoms.Where(c => c.ID == 4).FirstOrDefault();
var ownername = newdb.Randoms.Where(c => c.ID == 5).FirstOrDefault();
var softid = newdb.Randoms.Where(c => c.ID == 18).FirstOrDefault();
string fileName = Application.StartupPath + @"\bin\License.lic";
// Check if file already exists. If yes, delete it.
if (File.Exists(fileName))
{
File.Delete(fileName);
}
// Create a new file
using (StreamWriter sw = File.CreateText(fileName))
{
sw.WriteLine("Owner Name:" + ownername.Text);
sw.WriteLine("School Name:" + schoolname.Text);
sw.WriteLine("School Address:" + schooladdress.Text);
sw.WriteLine("School Contact:" + schoolcontact.Text);
sw.WriteLine("School Email:" + schoolemail.Text);
sw.WriteLine("Installation Date:" + DateTime.Now.ToString("dd/MM/yyyy"));
sw.WriteLine("IsActivated:" + ClsTripleDES.Encrypt("False"));
string ency = DateTime.Now.ToString("dd/MM/yyyy") + "," + DateTime.Now.AddDays(5).ToString("dd/MM/yyyy") + "," + softid.Text + "," + ownername.Text + "," + schoolname.Text + "," + "True";
sw.WriteLine("Licensed Hash:" + ClsTripleDES.Encrypt(ency));
}
string[] lines = File.ReadAllLines(Application.StartupPath + @"\bin\User.Config");
lines[0] = "Owner Name:" + txtowner.Text;
lines[1] = "School Name:" + txtschoolname.Text;
lines[2] = "FirstRun:" + "False";
lines[3] = "DefaultPrinter:null";
File.WriteAllLines(Application.StartupPath + @"\bin\User.Config", lines);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString(), "Error - Student Management System", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
newdb.Dispose();
}
}
private void SavingInformation()
{
try
{
Random ran1 = new Random()
{
ID = 1,
Key = "School Name",
Text = txtschoolname.Text
};
Random ran2 = new Random()
{
ID = 2,
Key = "Address",
Text = txtschooladdress.Text
};
Random ran3 = new Random()
{
ID = 3,
Key = "Contact",
Text = txtschoolcontact.Text
};
Random ran4 = new Random()
{
ID = 4,
Key = "Email",
Text = txtschoolEmail.Text
};
Random ran5 = new Random()
{
ID = 5,
Key = "Owner Name",
Text = txtowner.Text
};
Random ran6 = new Random()
{
ID = 6,
Key = "Classes",
Text = Classess().ToString()
};
Random ran7 = new Random()
{
ID = 7,
Key = "Sections",
Text = Sections().ToString()
};
Random ran8 = new Random()
{
ID = 8,
Key = "Classes Fee",
Text = ClassesFee().ToString()
};
Random ran9 = new Random()
{
ID = 9,
Key = "Others Fee Label",
Text = txtothersfeelabel.Text
};
Random ran10 = new Random()
{
ID = 10,
Key = "Others Fee",
Text = txtothersfee.Text
};
Random ran11 = new Random()
{
ID = 11,
Key = "Late Fee",
Text = txtlatefee.Text
};
Random ran12 = new Random()
{
ID = 12,
Key = "Voucher Charges",
Text = txtvouchcharges.Text
};
Random ran13 = new Random()
{
ID = 13,
Key = "Due Date",
Text = txtduedate.Text
};
Random ran14 = new Random()
{
ID = 14,
Key = "Total Fee Per Month",
Text = "0,0,0,0,0,0,0,0,0,0,0,0"
};
Random ran15 = new Random()
{
ID = 15,
Key = "Every Submission",
Text = "0;0;0;0;0;0;0;0;0;0;0;0"
};
Random ran16 = new Random()
{
ID = 16,
Key = "Submission Date",
Text = "0;0;0;0;0;0;0;0;0;0;0;0"
};
Random ran17 = new Random()
{
ID = 17,
Key = "Submission Name",
Text = "0;0;0;0;0;0;0;0;0;0;0;0"
};
var guid = Guid.NewGuid();
Random ran18 = new Random()
{
ID = 18,
Key = "Unique ID",
Text = guid.ToString().Substring(0, 18).ToString()
};
UserLogin user = new UserLogin()
{
UserName = txtuser.Text,
Password = txtpass.Text
};
db.Randoms.Add(ran1);
db.Randoms.Add(ran2);
db.Randoms.Add(ran3);
db.Randoms.Add(ran4);
db.Randoms.Add(ran5);
db.Randoms.Add(ran6);
db.Randoms.Add(ran7);
db.Randoms.Add(ran8);
db.Randoms.Add(ran9);
db.Randoms.Add(ran10);
db.Randoms.Add(ran11);
db.Randoms.Add(ran12);
db.Randoms.Add(ran13);
db.Randoms.Add(ran14);
db.Randoms.Add(ran15);
db.Randoms.Add(ran16);
db.Randoms.Add(ran17);
db.Randoms.Add(ran18);
db.UserLogins.Add(user);
db.SaveChanges();
string fileName = Application.StartupPath + @"\bin\License.lic";
// Check if file already exists. If yes, delete it.
if (File.Exists(fileName))
{
File.Delete(fileName);
}
// Create a new file
using (StreamWriter sw = File.CreateText(fileName))
{
sw.WriteLine("Owner Name:" + txtowner.Text);
sw.WriteLine("School Name:" + txtschoolname.Text);
sw.WriteLine("School Address:" + txtschooladdress.Text);
sw.WriteLine("School Contact:" + txtschoolcontact.Text);
sw.WriteLine("School Email:" + txtschoolEmail.Text);
sw.WriteLine("Installation Date:" + DateTime.Now.ToString("dd/MM/yyyy"));
sw.WriteLine("IsActivated:" + ClsTripleDES.Encrypt("False"));
string ency = DateTime.Now.ToString("dd/MM/yyyy") + "," + DateTime.Now.AddDays(5).ToString("dd/MM/yyyy") + "," + guid.ToString().Substring(0, 18).ToString() + "," + txtowner.Text + "," + txtschoolname.Text + "," + "True";
sw.WriteLine("Licensed Hash:" + ClsTripleDES.Encrypt(ency));
}
string[] lines = File.ReadAllLines(Application.StartupPath + @"\bin\User.Config");
lines[0] = "Owner Name:" + txtowner.Text;
lines[1] = "School Name:" + txtschoolname.Text;
lines[2] = "FirstRun:" + "False";
lines[3] = "DefaultPrinter:null";
File.WriteAllLines(Application.StartupPath + @"\bin\User.Config", lines);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString() + " " + ex.InnerException.Message.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button2_Click(object sender, EventArgs e)
{
textBox1.Text = ClsTripleDES.Encrypt(textBox2.Text);
}