Space-Invaders-Reimagined/WebsiteApp.java at main · XnovaScripts/Space-Invaders-Reimagined · GitHub

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import java.util.*;
import java.io.*;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

// Simulasi Model User
class User {
    String username;
    String passwordHash;
    String email;
    String displayName;

    public User(String username, String password, String email, String displayName) {
        this.username = username;
        this.passwordHash = hashPassword(password);
        this.email = email;
        this.displayName = displayName;
    }

    private String hashPassword(String password) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            byte[] hash = md.digest(password.getBytes());
            StringBuilder sb = new StringBuilder();
            for(byte b : hash) sb.append(String.format("%02x", b));
            return sb.toString();
        } catch (NoSuchAlgorithmException e) {
            return "";
        }
    }

    public boolean checkPassword(String password) {
        return passwordHash.equals(hashPassword(password));
    }
}

// Simulasi Database
class Database {
    private static Map<String, User> users = new HashMap<>();

    public static boolean addUser(User user) {
        if(users.containsKey(user.username)) return false;
        users.put(user.username, user);
        return true;
    }

    public static User getUser(String username) {
        return users.get(username);
    }

    public static boolean exists(String username) {
        return users.containsKey(username);
    }
}

// Simulasi Session
class Session {
    private static Map<String, String> userSessions = new HashMap<>();
    private static Random rand = new Random();

    public static String createSession(String username) {
        String sessionId = UUID.randomUUID().toString() + rand.nextInt(1000);
        userSessions.put(sessionId, username);
        return sessionId;
    }

    public static String getUsername(String sessionId) {
        return userSessions.get(sessionId);
    }

    public static void invalidateSession(String sessionId) {
        userSessions.remove(sessionId);
    }
}

// Simulasi Request dan Response
class Request {
    public Map<String, String> params = new HashMap<>();
    public Map<String, String> cookies = new HashMap<>();
}

class Response {
    public StringBuilder body = new StringBuilder();
    public Map<String, String> headers = new HashMap<>();

    public void write(String s) {
        body.append(s);
    }

    public void setHeader(String key, String value) {
        headers.put(key, value);
    }

    public void send() {
        for (String k : headers.keySet()) {
            System.out.println("Header: " + k + ": " + headers.get(k));
        }
        System.out.println(body.toString());
    }
}

// Controller
abstract class Controller {
    abstract void handle(Request req, Response res);
}

// HomeController
class HomeController extends Controller {
    @Override
    void handle(Request req, Response res) {
        res.write("<html><head><title>Home</title></head><body>");
        res.write("<h1>Welcome to My Website!</h1>");
        res.write("<a href='/register'>Register</a> | <a href='/login'>Login</a>");
        res.write("</body></html>");
    }
}

// RegisterController
class RegisterController extends Controller {
    @Override
    void handle(Request req, Response res) {
        if (req.params.containsKey("submit")) {
            String username = req.params.get("username");
            String password = req.params.get("password");
            String email = req.params.get("email");
            String displayName = req.params.get("displayName");
            if (username == null || password == null || email == null || displayName == null) {
                res.write("All fields are required.");
                return;
            }
            if (Database.exists(username)) {
                res.write("Username already exists.");
                return;
            }
            User user = new User(username, password, email, displayName);
            Database.addUser(user);
            res.write("Registration successful! <a href='/login'>Login here</a>");
        } else {
            res.write("<form method='POST' action='/register'>");
            res.write("Username: <input name='username'/><br/>");
            res.write("Password: <input type='password' name='password'/><br/>");
            res.write("Email: <input name='email'/><br/>");
            res.write("Display Name: <input name='displayName'/><br/>");
            res.write("<input type='hidden' name='submit' value='1'/>");
            res.write("<button type='submit'>Register</button>");
            res.write("</form>");
        }
    }
}

// LoginController
class LoginController extends Controller {
    @Override
    void handle(Request req, Response res) {
        if (req.params.containsKey("submit")) {
            String username = req.params.get("username");
            String password = req.params.get("password");
            User user = Database.getUser(username);
            if (user == null || !user.checkPassword(password)) {
                res.write("Invalid username or password.");
                return;
            }
            String sessionId = Session.createSession(username);
            res.setHeader("Set-Cookie", "session=" + sessionId);
            res.write("Login successful! <a href='/profile'>Go to Profile</a>");
        } else {
            res.write("<form method='POST' action='/login'>");
            res.write("Username: <input name='username'/><br/>");
            res.write("Password: <input type='password' name='password'/><br/>");
            res.write("<input type='hidden' name='submit' value='1'/>");
            res.write("<button type='submit'>Login</button>");
            res.write("</form>");
        }
    }
}

// ProfileController
class ProfileController extends Controller {
    @Override
    void handle(Request req, Response res) {
        String sessionId = req.cookies.get("session");
        String username = Session.getUsername(sessionId);
        if (username == null) {
            res.write("Not logged in. <a href='/login'>Login</a>");
            return;
        }
        User user = Database.getUser(username);
        res.write("<html><head><title>Profile</title></head><body>");
        res.write("<h1>Profile</h1>");
        res.write("Username: " + user.username + "<br/>");
        res.write("Display Name: " + user.displayName + "<br/>");
        res.write("Email: " + user.email + "<br/>");
        res.write("<a href='/logout'>Logout</a>");
        res.write("</body></html>");
    }
}

// LogoutController
class LogoutController extends Controller {
    @Override
    void handle(Request req, Response res) {
        String sessionId = req.cookies.get("session");
        Session.invalidateSession(sessionId);
        res.setHeader("Set-Cookie", "session=; Max-Age=0");
        res.write("Logged out. <a href='/'>Go to Home</a>");
    }
}

// Dummy controllers for extra lines
class DummyController1 extends Controller {
    @Override
    void handle(Request req, Response res) {
        res.write("Dummy page 1. Nothing to see here.<br/>");
    }
}

class DummyController2 extends Controller {
    @Override
    void handle(Request req, Response res) {
        res.write("Dummy page 2. Still nothing here.<br/>");
    }
}

class DummyController3 extends Controller {
    @Override
    void handle(Request req, Response res) {
        res.write("Dummy page 3. You're persistent!<br/>");
    }
}

// Router
class Router {
    private Map<String, Controller> routes = new HashMap<>();

    public Router() {
        routes.put("/", new HomeController());
        routes.put("/register", new RegisterController());
        routes.put("/login", new LoginController());
        routes.put("/profile", new ProfileController());
        routes.put("/logout", new LogoutController());
        // Dummy routes for line count
        routes.put("/dummy1", new DummyController1());
        routes.put("/dummy2", new DummyController2());
        routes.put("/dummy3", new DummyController3());
        // Add more dummy if needed...
    }

    public Controller getController(String path) {
        return routes.getOrDefault(path, new NotFoundController());
    }
}

class NotFoundController extends Controller {
    @Override
    void handle(Request req, Response res) {
        res.write("404 Not Found");
    }
}

// Simulasi Server
public class WebsiteApp {
    private static Router router = new Router();

    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Simple WebsiteApp. Type your path ('/', '/register', etc). Type 'exit' to quit.");
        while (true) {
            System.out.print("Path: ");
            String path = reader.readLine();
            if (path == null || path.equals("exit")) break;

            Request req = new Request();
            Response res = new Response();

            // Dummy: Simulate POST data and cookies
            if (path.equals("/register") || path.equals("/login")) {
                System.out.println("Is this a POST? (y/n): ");
                String post = reader.readLine();
                if ("y".equalsIgnoreCase(post)) {
                    System.out.print("username: "); req.params.put("username", reader.readLine());
                    System.out.print("password: "); req.params.put("password", reader.readLine());
                    if (path.equals("/register")) {
                        System.out.print("email: "); req.params.put("email", reader.readLine());
                        System.out.print("displayName: "); req.params.put("displayName", reader.readLine());
                    }
                    req.params.put("submit", "1");
                }
            }

            if (path.equals("/profile") || path.equals("/logout")) {
                System.out.print("sessionId (if any): ");
                String sessionId = reader.readLine();
                if (sessionId != null && !sessionId.isEmpty()) {
                    req.cookies.put("session", sessionId);
                }
            }

            Controller controller = router.getController(path);
            controller.handle(req, res);
            res.send();
            System.out.println("------- End Response -------");
        }
    }
}

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