update

.config/Code/User/History/-54951e98/0ECX.java

@@ -0,0 +1,196 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/1PKj.java

@@ -0,0 +1,217 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/3AN6.java

@@ -0,0 +1,214 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                resetStyles(username, password, info);
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/3Uer.java

@@ -0,0 +1,111 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/5mK6.java

@@ -0,0 +1,217 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/6yUP.java

@@ -0,0 +1,200 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/7HYU.java

@@ -0,0 +1,207 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/Anjw.java

@@ -0,0 +1,218 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/CoiS.java

@@ -0,0 +1,108 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+                stage.setScene(mainScene);
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/DU1B.java

@@ -0,0 +1,111 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/DX1l.java

@@ -0,0 +1,212 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/DpGy.java

@@ -0,0 +1,218 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/EgRE.java

@@ -0,0 +1,205 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/GN0U.java

@@ -0,0 +1,106 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/Gtcq.java

@@ -0,0 +1,188 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/Jxcl.java

@@ -0,0 +1,207 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/KxLu.java

@@ -0,0 +1,208 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/LQl0.java

@@ -0,0 +1,193 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/LYzI.java

@@ -0,0 +1,212 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/OyCc.java

@@ -0,0 +1,114 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.animation.PauseTransition;
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+import javafx.util.Duration;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+                stage.setScene(mainScene);
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+                PauseTransition pt = new PauseTransition(Duration.seconds(1));
+                pt.setOnFinished(e -> stage.setScene(loginScene));
+                pt.play();
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/PUil.java

@@ -0,0 +1,208 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/QyF5.java

@@ -0,0 +1,191 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/RSMQ.java

@@ -0,0 +1,115 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.animation.PauseTransition;
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+import javafx.util.Duration;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.sendWarmupRequest();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+                stage.setScene(mainScene);
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+                PauseTransition pt = new PauseTransition(Duration.seconds(1));
+                pt.setOnFinished(e -> stage.setScene(loginScene));
+                pt.play();
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/TClE.java

@@ -0,0 +1,213 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/WIeo.java

@@ -0,0 +1,188 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                System.out.println("passwords not match");
+            break;
+            case 1: System.out.println("login success");
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/Y3Nn.java

@@ -0,0 +1,197 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/ZGYG.java

@@ -0,0 +1,201 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/a9wZ.java

@@ -0,0 +1,187 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: 
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                System.out.println("passwords not match");
+            break;
+            case 1: System.out.println("login success");
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/b7gd.java

@@ -0,0 +1,216 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/cob8.java

@@ -0,0 +1,107 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/dYLo.java

@@ -0,0 +1,206 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/drel.java

@@ -0,0 +1,207 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/eIC7.java

@@ -0,0 +1,107 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/eSab.java

@@ -0,0 +1,218 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/entries.json

@@ -0,0 +1 @@
+{"version":1,"resource":"file:///home/rafayahmad/Stuff/Coding/Java/hcloudclient/src/main/java/com/rutils/HClient.java","entries":[{"id":"a9wZ.java","timestamp":1720863722014},{"id":"hP5E.java","timestamp":1720863743844},{"id":"WIeo.java","timestamp":1720864061512},{"id":"r3ex.java","timestamp":1720864074832},{"id":"Gtcq.java","timestamp":1720864142155},{"id":"z5iw.java","timestamp":1720864199345},{"id":"QyF5.java","timestamp":1720864224778},{"id":"j75F.java","timestamp":1720864253168},{"id":"LQl0.java","timestamp":1720864266171},{"id":"0ECX.java","timestamp":1720864299111},{"id":"Y3Nn.java","timestamp":1720864317631},{"id":"qKhU.java","timestamp":1720864583046},{"id":"6yUP.java","timestamp":1720864605179},{"id":"ZGYG.java","timestamp":1720864619696},{"id":"vFBu.java","timestamp":1720864728471},{"id":"EgRE.java","timestamp":1720864746778},{"id":"dYLo.java","timestamp":1720864802464},{"id":"Jxcl.java","timestamp":1720864819690},{"id":"7HYU.java","timestamp":1720864892748},{"id":"drel.java","timestamp":1720864922212},{"id":"PUil.java","timestamp":1720931782563},{"id":"vItQ.java","timestamp":1720934111213},{"id":"q0GS.java","timestamp":1720935637554},{"id":"rKb0.java","timestamp":1721116954065},{"id":"KxLu.java","timestamp":1721120871291},{"id":"TClE.java","timestamp":1721202898284},{"id":"rjB3.java","timestamp":1721202923752},{"id":"3AN6.java","timestamp":1721202951322},{"id":"gIRm.java","timestamp":1721202969648},{"id":"DX1l.java","timestamp":1721202999912},{"id":"LYzI.java","timestamp":1721203019708},{"id":"b7gd.java","timestamp":1721203337938},{"id":"1PKj.java","timestamp":1721204152976},{"id":"eSab.java","timestamp":1721204224625},{"id":"hUdd.java","timestamp":1721206336186},{"id":"5mK6.java","timestamp":1721206435909},{"id":"oYkT.java","source":"Organize imports","timestamp":1721297667475},{"id":"DpGy.java","timestamp":1721297708182},{"id":"Anjw.java","timestamp":1721298573995},{"id":"3Uer.java","timestamp":1721387159582},{"id":"DU1B.java","timestamp":1721387192464},{"id":"gj8d.java","source":"Remove all unused imports","timestamp":1721387202651},{"id":"yRx3.java","timestamp":1721387216342},{"id":"GN0U.java","timestamp":1721387272178},{"id":"cob8.java","timestamp":1721387367522},{"id":"eIC7.java","timestamp":1721387381046},{"id":"CoiS.java","timestamp":1721387417970},{"id":"mo0X.java","timestamp":1721387431635},{"id":"OyCc.java","timestamp":1721387644808},{"id":"RSMQ.java","timestamp":1721388065379}]}

.config/Code/User/History/-54951e98/gIRm.java

@@ -0,0 +1,214 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/gj8d.java

@@ -0,0 +1,106 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/hP5E.java

@@ -0,0 +1,188 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: 
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                System.out.println("passwords not match");
+            break;
+            case 1: System.out.println("login success");
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/hUdd.java

@@ -0,0 +1,217 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/j75F.java

@@ -0,0 +1,192 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/mo0X.java

@@ -0,0 +1,109 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+        mainScene = SceneCreator.createMainScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public static void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+                stage.setScene(mainScene);
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public static void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+                stage.setScene(loginScene);
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private static void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/oYkT.java

@@ -0,0 +1,218 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    private void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    private void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/q0GS.java

@@ -0,0 +1,208 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/qKhU.java

@@ -0,0 +1,198 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/r3ex.java

@@ -0,0 +1,187 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+            break;
+            case 1: // registered succesfully
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/rKb0.java

@@ -0,0 +1,208 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/rjB3.java

@@ -0,0 +1,215 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/vFBu.java

@@ -0,0 +1,203 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/vItQ.java

@@ -0,0 +1,208 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        // HttpsUtil.init();
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setStyle("");
+                password.setStyle("");
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                username.setStyle("");
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}

.config/Code/User/History/-54951e98/yRx3.java

@@ -0,0 +1,106 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+
+import javafx.application.Application;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = SceneCreator.createLoginScene();
+        registerScene = SceneCreator.createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        resetStyles(username, password, info);
+        switch(verified){
+            case 0: // user not registered
+                username.setStyle("-fx-border-color: red;");
+                info.setText("user not registered");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // succesful verification
+                username.setStyle("");
+                password.setStyle("");
+                info.setStyle("");
+                info.setText("success");
+                info.setStyle("-fx-text-fill: green;");
+            break;
+            case 2: // incorrect passwd
+                username.setStyle("");
+                password.setStyle("-fx-border-color: red;");
+                info.setStyle("");
+                info.setText("incorrect password");
+                info.setStyle("-fx-text-fill: red;");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        resetStyles(username, password, passwordAgain, info);
+        System.out.println(status);
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+                info.setStyle("-fx-text-fill: red;");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                info.setStyle("-fx-text-fill: green;");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+            break;
+            case 2:
+                // user already exists
+                info.setText("user already registered");
+                info.setStyle("-fx-text-fill: red;");
+                username.setStyle("-fx-border-color: red;");
+        }
+    }
+
+    private void resetStyles(Node... nodes){
+        for(Node node : nodes){
+            node.setStyle(null);
+        }
+    }
+    
+}

.config/Code/User/History/-54951e98/z5iw.java

@@ -0,0 +1,191 @@
+package com.rutils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import javafx.application.Application;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.text.Font;
+import javafx.stage.Stage;
+
+public class HClient extends Application{
+
+    static Stage stage;
+
+    static Scene loginScene;
+    static Scene registerScene;
+    static Scene mainScene;
+
+    public static void main(String[] args){
+        launch(args);
+    }
+
+    @Override
+    public void start(Stage arg1){
+
+        stage = new Stage();
+        stage.setMinWidth(800);
+        stage.setMinHeight(750);
+
+        loginScene = createLoginScene();
+        registerScene = createRegisterScene();
+
+        try{
+            File style = new File("src/main/java/com/rutils/styles/darktheme.css");
+            loginScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+            registerScene.getStylesheets().add(style.toURI().toURL().toExternalForm());
+        }
+        catch(MalformedURLException e){
+            e.printStackTrace();
+        }
+
+        stage.setScene(loginScene);
+        stage.show();
+    }
+
+    public void handleLogin(TextField username, PasswordField password, Label info){
+        int verified = HttpsUtil.verifyCredentials(username.getText(), password.getText());
+        switch(verified){
+            case 0: // user not registered
+                info.setText("user not registered");
+            break;
+            case 1: // succesful verification
+                info.setText("success");
+            break;
+            case 2: // incorrect passwd
+                info.setText("incorrect password");
+        }
+        
+    }
+
+    public void handleRegister(TextField username, PasswordField password, PasswordField passwordAgain, Label info){
+        int status = HttpsUtil.registerUser(username.getText(), password.getText(), passwordAgain.getText());       
+        switch(status){
+            case 0: // password not match
+                password.setStyle("-fx-border-color: red;");
+                passwordAgain.setStyle("-fx-border-color: red;");
+                info.setText("passwords do not match");
+            break;
+            case 1: // registered succesfully
+                info.setText("registered successfully");
+                password.setStyle("-fx-border-color: #222222;");
+                passwordAgain.setStyle("-fx-border-color: #222222;");
+
+        }
+    }
+
+
+    private Scene createLoginScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Login");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+
+        Button login = new Button("Login");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> handleLogin(username, password, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> stage.setScene(registerScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, info, login, or, signup);
+        return scene;
+    }
+
+    private Scene createRegisterScene(){
+        VBox root = new VBox();
+        Scene scene = new Scene(root);
+
+        root.requestFocus();
+        root.setAlignment(Pos.CENTER);
+        root.setSpacing(25);
+        root.minWidthProperty().bind(stage.widthProperty());
+        root.minHeightProperty().bind(stage.heightProperty());
+
+        Label label = new Label("Sign Up");
+        label.setFont(new Font(40));
+
+        Region spcr1 = new Region();
+        spcr1.setPrefHeight(20);
+
+        TextField username = new TextField();
+        username.setPromptText("username");
+        username.setFont(new Font(20));
+        username.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        username.setPrefHeight(50);
+
+        PasswordField password = new PasswordField();
+        password.setPromptText("password");
+        password.setFont(new Font(20));
+        password.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        password.setPrefHeight(50);
+
+        PasswordField passwordAgain = new PasswordField();
+        passwordAgain.setPromptText("confirm password");
+        passwordAgain.setFont(new Font(20));
+        passwordAgain.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        passwordAgain.setPrefHeight(50);
+
+        Label info = new Label();
+        info.setPrefHeight(20);
+        info.setStyle("-fx-text-fill: red;");
+
+        Button signup = new Button("Sign Up");
+        signup.setFont(new Font(20));
+        signup.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        signup.setPrefHeight(50);
+        signup.setOnAction(e -> handleRegister(username, password, passwordAgain, info));
+
+        Label or = new Label("OR");
+        or.setFont(new Font(30));
+
+        Button login = new Button("Login Instead");
+        login.setFont(new Font(20));
+        login.maxWidthProperty().bind(scene.widthProperty().divide(3));
+        login.setPrefHeight(50);
+        login.setOnAction(e -> stage.setScene(loginScene));
+
+        root.getChildren().addAll(label, spcr1, username, password, passwordAgain, info, signup, or, login);
+        return scene;
+    }
+    
+}