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‎Mini-Project/7/README.md

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# 20CYS383 Java Programming Lab
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![](https://img.shields.io/badge/Batch-21CYS-lightgreen) ![](https://img.shields.io/badge/UG-blue) ![](https://img.shields.io/badge/Subject-JPL-blue)
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## Role Based Access Control (RBAC)
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### JPL-XX
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### Project Description
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#### Team Members
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<p text-align: justify;>The RBAC project aims to develop a comprehensive Graphical User Interface (GUI) application in Java that facilitates the management of Role-Based Access Control (RBAC) within a system or application. RBAC is a widely used security model that provides a structured approach to managing user permissions and access to system resources.</p>
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### Module Split-up
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| Name | Topic |
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|------|-------|
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| Seran Pandiyan I P | Home Page |
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| Aravind S | Home Page |
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| Hem Sagar G H | Login Page |
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### Deliverables
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### Code
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```
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package com.amrita.jpl.cys21009.project;
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/**
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* JAVA SEMESTER PROJECT
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* simple login system that allows the users to access the database(GUI) according to their roles
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*
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* RBAC implementation
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*
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* */
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import javax.swing.*;
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import javax.swing.table.DefaultTableModel;
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import java.awt.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.*;
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public class LoginPage extends JFrame {
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private JTextField usernameField;
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private JPasswordField passwordField;
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private Map<String, String> userRoleMap;
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public LoginPage() {
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setTitle("Login Page");
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setSize(500, 200);
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setLocationRelativeTo(null);
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// Mapping the users with roles.
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userRoleMap = new HashMap<>();
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userRoleMap.put("Harry Potter", "manager");
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userRoleMap.put("Eren Yeager", "admin");
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userRoleMap.put("Percy Jackson", "user");
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userRoleMap.put("guest", "guest");
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JPanel panel = new JPanel();
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panel.setLayout(new GridLayout(3, 2));
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JLabel usernameLabel = new JLabel("Username:",SwingConstants.CENTER);
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usernameField = new JTextField(20);
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JLabel passwordLabel = new JLabel("Password:",SwingConstants.CENTER);
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passwordField = new JPasswordField(20);
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JButton loginButton = new JButton("Login");
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loginButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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String username = usernameField.getText();
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String password = new String(passwordField.getPassword());
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// Check the username and password
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if (authenticate(username, password)) {
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JOptionPane.showMessageDialog(LoginPage.this, "Login Successful!");
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String userRole = userRoleMap.get(username);
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openHomePage(userRole);
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} else {
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JOptionPane.showMessageDialog(LoginPage.this, "Invalid username or password. Please try again.");
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}
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}
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});
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panel.add(usernameLabel);
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panel.add(usernameField);
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panel.add(passwordLabel);
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panel.add(passwordField);
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panel.add(new JLabel());
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panel.add(loginButton);
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add(panel);
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setVisible(true);
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}
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private boolean authenticate(String username, String password) {
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return username.equals("Eren Yeager") && password.equals("password123")
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|| username.equals("Percy Jackson") && password.equals("password456")
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|| username.equals("Harry Potter") && password.equals("password000")
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|| username.equals("guest") && password.equals("password789");
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}
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private void openHomePage(String userRole) {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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new HomePage(userRole);
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dispose();
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}
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});
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}
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public static void main(String[] args) {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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new LoginPage();
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}
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});
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}
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}
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class HomePage extends JFrame {
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private String userRole;
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private DefaultTableModel tableModel;
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private JTable table;
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public HomePage(String userRole) {
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this.userRole = userRole;
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setTitle("Database");
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setSize(800, 600);
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setLocationRelativeTo(null);
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JPanel panel = new JPanel();
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panel.setLayout(new BorderLayout());
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// Create a table to display data
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String[] columnNames = {"ID", "Name", "Age", "Role"};
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Object[][] data = {
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{1, "Eren Yeager", 19,"admin"},
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{2, "Percy Jackson", 30,"user"},
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{3, "Harry Potter", 45,"manager"},
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};
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tableModel = new DefaultTableModel(data,columnNames);
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table = new JTable(tableModel);
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JScrollPane scrollPane = new JScrollPane(table);
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panel.add(scrollPane, BorderLayout.CENTER);
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JPanel buttonpanel = new JPanel(new GridLayout(1,3));
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JButton addButton = new JButton("Add Record");
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addButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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if(userRole.equals("admin")){
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addRecord();
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} else if (userRole.equals("manager")) {
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addRecord();
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} else if (userRole.equals("normal")) {
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JOptionPane.showMessageDialog(HomePage.this, "You are not permitted to alter the details.");
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}
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else{
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JOptionPane.showMessageDialog(HomePage.this, "You are not permitted to alter the details.");
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}
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}
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});
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buttonpanel.add(addButton);
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JButton deleteButton = new JButton("Delete Record");
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deleteButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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if(userRole.equals("admin")){
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removeRecord();
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}
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else{
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JOptionPane.showMessageDialog(HomePage.this, "You are not permitted to alter the details.");
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}
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}
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});
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buttonpanel.add(deleteButton);
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JButton editButton = new JButton("Edit Record");
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editButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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if(userRole.equals("admin")){
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editRecord();
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} else if (userRole.equals("manager")) {
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editRecord();
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System.out.println("Manager is not allowed to edit the roles assigned.");
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} else{
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JOptionPane.showMessageDialog(HomePage.this, "You are not permitted to alter the details.");
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}
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}
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});
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buttonpanel.add(editButton);
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panel.add(buttonpanel,BorderLayout.SOUTH);
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add(panel);
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setVisible(true);
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}
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private void addRecord() {
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JFrame addRecordFrame = new JFrame("Add Record");
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addRecordFrame.setSize(300, 400);
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addRecordFrame.setLocationRelativeTo(null);
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JPanel panel = new JPanel();
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panel.setLayout(new GridLayout(5, 2));
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JLabel idLabel = new JLabel("ID:");
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JTextField idField = new JTextField();
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JLabel nameLabel = new JLabel("Name:");
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JTextField nameField = new JTextField();
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JLabel ageLabel = new JLabel("Age:");
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JTextField ageField = new JTextField();
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JLabel roleLabel = new JLabel("Role:");
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JTextField roleField = new JTextField();
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JButton addButton = new JButton("Add");
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addButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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String id = idField.getText();
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String name = nameField.getText();
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String age = ageField.getText();
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String role = roleField.getText();
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Vector<String> record = new Vector<>();
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record.add(id);
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record.add(name);
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record.add(age);
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record.add(role);
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tableModel.addRow(record);
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addRecordFrame.dispose();
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}
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});
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panel.add(idLabel);
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panel.add(idField);
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panel.add(nameLabel);
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panel.add(nameField);
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panel.add(ageLabel);
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panel.add(ageField);
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panel.add(roleLabel);
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panel.add(roleField);
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panel.add(new JLabel());
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panel.add(addButton);
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addRecordFrame.add(panel);
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addRecordFrame.pack();
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addRecordFrame.setVisible(true);
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}
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private void removeRecord() {
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int selectedRow = table.getSelectedRow();
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if (selectedRow != -1) {
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tableModel.removeRow(selectedRow);
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} else {
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JOptionPane.showMessageDialog(HomePage.this, "Please select a record to remove.");
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}
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}
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private void editRecord() {
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int selectedRow = table.getSelectedRow();
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if (selectedRow != -1) {
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String id = table.getValueAt(selectedRow, 0).toString();
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String name = table.getValueAt(selectedRow, 1).toString();
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String age = table.getValueAt(selectedRow, 2).toString();
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String role = table.getValueAt(selectedRow,3).toString();
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// Create a new frame for editing
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JFrame editRecordFrame = new JFrame("Edit Record");
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editRecordFrame.setSize(300, 200);
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editRecordFrame.setLocationRelativeTo(null);
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JPanel panel = new JPanel();
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panel.setLayout(new GridLayout(5, 2));
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JLabel idLabel = new JLabel("ID:");
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JTextField idField = new JTextField(id, 10);
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JLabel nameLabel = new JLabel("Name:");
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JTextField nameField = new JTextField(name, 20);
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JLabel ageLabel = new JLabel("Age:");
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JTextField ageField = new JTextField(age, 5);
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JLabel roleLabel = new JLabel("Role:");
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JTextField roleField = new JTextField(role,5);
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JButton saveButton = new JButton("Save");
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saveButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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String newId = idField.getText();
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String newName = nameField.getText();
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String newAge = ageField.getText();
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String newRole = roleField.getText().toLowerCase();
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table.setValueAt(newId, selectedRow, 0);
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table.setValueAt(newName, selectedRow, 1);
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table.setValueAt(newAge, selectedRow, 2);
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table.setValueAt(newRole, selectedRow, 3);
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editRecordFrame.dispose();
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}
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});
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panel.add(idLabel);
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panel.add(idField);
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panel.add(nameLabel);
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panel.add(nameField);
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panel.add(ageLabel);
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panel.add(ageField);
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if(!userRole.equals("manager")){
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panel.add(roleLabel);
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panel.add(roleField);
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}
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panel.add(new JLabel());
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panel.add(saveButton);
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editRecordFrame.add(panel);
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editRecordFrame.setVisible(true);
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} else {
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JOptionPane.showMessageDialog(HomePage.this, "Please select a record to edit.");
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}
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}
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}
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```
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### Demo
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#### Screenshots
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<p align="center">
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<img src = "Assets/S1.jpg" width=600>
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<img src = "Assets/S2.jpg" width=600>
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<img src = "Assets/S3.jpg" width=600>
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<img src = "Assets/S4.jpg" width=600>
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<img src = "Assets/S5.jpg" width=600>
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<img src = "Assets/S6.jpg" width=600>
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<img src = "Assets/S7.jpg" width=600>
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<img src = "Assets/S8.jpg" width=600>
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<img src = "Assets/S9.jpg" width=600>
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<img src = "Assets/S10.jpg" width=600>
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<img src = "Assets/S11.jpg" width=600>
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</p>
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#### Account with "Admin" access
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<p align="center">
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<img src = "Assets/demo1.gif" width=600>
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</p>
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#### Account with "User" access
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<p align="center">
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<img src = "Assets/demo2.gif" width=600>
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</p>

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