private void btn_Decrypt_Click(object sender, EventArgs e)
{
int count = 0;
Decrypt.Decryption Decryption = new Decrypt.Decryption();
Decrypt_Output.OutputDecrypt Output = new Decrypt_Output.OutputDecrypt();
Utilities.PrimeCheck checkifprime = new Utilities.PrimeCheck();
int rotor1, rotor2, rotor3, rotor4;
rotor1 = int.Parse(comboBox1.Text); // check for prime
rotor2 = int.Parse(comboBox2.Text);
rotor3 = int.Parse(comboBox3.Text);
rotor4 = int.Parse(comboBox4.Text);
if (checkifprime.IsPrime(rotor1) && checkifprime.IsPrime(rotor2) && checkifprime.IsPrime(rotor3) && checkifprime.IsPrime(rotor4))
{
try // gets rotor information if rotor is null the trry catch will catch the error
{
if (File_Upload.Checked)
{
response = Decryption.DecryptText(response, rotor1, rotor2, rotor3, rotor4);
Output.Output("file", response, filename);
File.Delete(OriginalFileName);
MessageBox.Show("Your text has been decrypted successfuly and the uploaded file has been deleted", "Complete", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
response = Input_textbox.Text;
response = response.Replace("\r\n", null);
response = Decryption.DecryptText(response, rotor1, rotor2, rotor3, rotor4);
Output.Output("textbox", response, filename);
}
}
catch
{
if (count == 0)
{
count++;
btn_Decrypt_Click(null, null);
}
else
{
MessageBox.Show("Your text has not been decrypted because an error has occured", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
else
{
MessageBox.Show("A rotor selection is empty or a non-prime number has not been entered" +
"\n Note! Prime numbers must be between 2-73", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}