/*
* The primary function of this form, this button performs validation checking on user input
* and queries the student DB for a password to match
* It creates tokens for the name to pass into Valid class search functions and calls both
* the Valid.Auth function for this purpose and also the Append function built into this form to
* add an entry to the log file matching the current date
* Upon login this also plays a system sound to notify lab assistant of a valid login and
* reiterates the lab policies on display in the lab
*/
private void button1_Click(object sender, EventArgs e) //Validates student input and logs them in
{
try
{
if ((nameListBox.SelectedIndex != -1) && (passBox.Text.Length == 7)) //collects a name from the list box
{ //and password from textbox
if (labRadio.Checked == true || tutorRadio.Checked == true || workRadio.Checked == true)
{
string name = nameListBox.SelectedItem.ToString();
string[] fullname = name.Split(','); //tokenizes name for searching the DB
string lastname = fullname[0].Trim();
string firstname = fullname[1].Trim();
Valid student = new Valid(firstname, lastname, passBox.Text);
if (student.Auth(firstname, lastname, passBox.Text)) //executes DB query to match passwords
{
//create/append a log file with name, ID, major and timestamp
//add to a list for the logout page
if (AppendLog(student, "Time in: "))
{
currentLogins.Add(name);
System.Media.SystemSounds.Asterisk.Play(); //system sound for lab assistants
Form policy = new LabPolicy();
policy.ShowDialog();
MessageBox.Show("Login successful.");
/*
* MessageBox.Show("\t LAB POLICIES: \n " + //displays lab policies on login
* "No food or drink allowed in the lab. \n " +
* "No children allowed in the lab. \n " +
* "No vaping allowed in the lab. \n" +
* "10 page print limit per student per day.");*/
passBox.Clear();
majorBox.Clear();
textBox1.Focus();
}
}
else
{
MessageBox.Show("Incorrect password.");
passBox.Clear();
passBox.Focus();
}
}
else
{
MessageBox.Show("Please choose why you are logging in today.");
}
}
else
{
MessageBox.Show("Please select your name and enter your seven digit Student ID.");
}
}
catch (Exception ex)
{
MessageBox.Show("Error in Login button", ex.Message);
}
}
//Function to create an Administrator password if none exists
private bool FirstTimeLoad()
{
Valid admin = new Valid();
if (admin.Auth("Administrator", " "))
{
return(true);
}
return(false);
}
/*
* This button to open the student logout form has been removed in favor or the function below it
* which will allow students to log in and out from the same form. The student logout form still
* exists but is reserved for admin use. Kept here for posterity.
*
* private void logoutButton_Click(object sender, EventArgs e) //Alternative logout button to open the logout form
* { //Created as a more user friendly alternative to menu item
* if (currentLogins.Count > 0)
* {
* using (var myform = new Logout(currentLogins)) //passes the current login list to the logout form
* {
* var result = myform.ShowDialog();
* if (result == DialogResult.OK)
* {
* currentLogins = myform.currentStudents; //receives an updated list from the logout form
* }
* OpenFill(); //repopulates the student login list
* }
* }
* else
* {
* MessageBox.Show("No students currently logged in.");
* }
* }*/
/*
* The following button event handler is presented as an alternative to opening the student logout form using either
* of the previous methods
* Instead of calling the logout form this method reuses the existing code from the logout form to handle appending
* the daily log and updating the currentlogin list
* This method requires users to find their name in the list, requiring them to search or filter through the list in
* the same way as when they log in, the example set by the previous login program required the use of a seperate form
* to make searching the list for logouts faster, but the addition of a search box may obsolete the need for this form
* This option is then presented as an alternative
*/
private void button2_Click(object sender, EventArgs e)
{
if (currentLogins.Count > 0)
{
if (nameListBox.SelectedIndex != -1 && passBox.Text.Length == 7)
{
string name = nameListBox.SelectedItem.ToString();
string[] fullname = name.Split(','); //tokenizes name for searching the DB
string lastname = fullname[0].Trim();
string firstname = fullname[1].Trim();
Valid student = new Valid(firstname, lastname, passBox.Text);
if (currentLogins.Contains(name)) //ensures the student logging out is logged in
{
if (student.Auth(firstname, lastname, passBox.Text)) //executes DB query to match passwords
{
//create/append a log file with name, ID, major and timestamp
//add to a list for the logout page
if (AppendLog(student, "Time out: "))
{
MessageBox.Show("Logout successful.");
currentLogins.Remove(name);
passBox.Clear();
majorBox.Clear();
OpenFill();
}
}
}
else
{
MessageBox.Show("You are not currently logged in.");
}
}
else
{
MessageBox.Show("Please select your name and enter your student ID.");
}
}
else
{
MessageBox.Show("No students currently logged in.");
}
}
} //creates a field we can return to the calling form
private void button1_Click(object sender, EventArgs e)
{
try
{
Valid checking = new Valid();
if (checking.Auth(nameBox.Text, passBox.Text) && passBox.Text.Length > 0) //Authentication for labassist/admins
{
this.authok = checking.Type(nameBox.Text, passBox.Text); //Assigns the login type
this.DialogResult = DialogResult.OK; //to the authok field
this.Close();
}
else
{
MessageBox.Show("Invalid username/password");
}
}
catch (Exception)
{
MessageBox.Show("Problem with login form.");
}
}
/*
* Function that manages updating passwords for the admin accounts. This allows for the updating
* of all accounts in the dbo.Admins, requiring the current password for security purposes.
*/
private void updateButton_Click(object sender, EventArgs e)
{
if (updateListBox.SelectedIndex != -1)
{
if (oldPassBox.Text == string.Empty || updatePassBox.Text == string.Empty || confirmPassBox.Text == string.Empty)
{
MessageBox.Show("Please fill all password boxes.");
ClearThings();
oldPassBox.Focus();
}
else
{
Valid admin = new Valid();
if (admin.Auth(updateListBox.SelectedItem.ToString(), oldPassBox.Text))
{
if (admin.UpdateAdmin(updateListBox.SelectedItem.ToString(), updatePassBox.Text))
{
MessageBox.Show("Password update for " + updateListBox.SelectedItem.ToString() + " successful.");
}
}
}
}
}