JavaFX WebView cookie - webview

Question

How do I get the cookie set by a connection to a webpage from JavaFX WebView. I want to use this cookie in order to open a seperate connection to the website after the originaol login.
Is there a way to do this and how?
Thank you for your time

Answer 1

I have a local "login.html" that does an AJAX call to my server to log in.
JavaFX application code:
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Battleround client");
URL loginPageUrl = Main.class.getResource("/pages/login.html");
final WebView webview = new WebView();
final WebEngine webEngine = webview.getEngine();
webEngine.setJavaScriptEnabled(true);
webEngine.load(loginPageUrl.toString());
/*
* Alright, this piece of code might be hard to understand. Basically
* we're adding a JavaScript object that's actually a Java object. So we
* can call Java methods from JavaScript. And we're adding this
* javascript object as soon as the page has been fully loaded.
*/
webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>() {
#Override
public void changed(ObservableValue<? extends State> ov, State t, State t1) {
if (t1 == Worker.State.SUCCEEDED) {
JSObject window = (JSObject) webEngine.executeScript("window");
window.setMember("java", new AuthenticationApplication());
}
}
});
StackPane root = new StackPane();
root.getChildren().add(webview);
primaryStage.setScene(new Scene(root, 400, 500));
primaryStage.show();
}
public class AuthenticationApplication {
public void start(String JSESSIONID) {
// From here on I start my game with the JSESSIONID from the login call.
}
}
My JavaScript code in the login.html:
function login(username, password) {
var xmlHttp = new XMLHttpRequest();
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
var url = "http://192.168.2.7:8888/Login";
var params = "username=" + userName + "&password=" + password;
xmlHttp.open("POST", url, true);
// Send the proper header information along with the request
xmlHttp.setRequestHeader("Content-type",
"application/x-www-form-urlencoded");
xmlHttp.setRequestHeader("Content-length", params.length);
xmlHttp.setRequestHeader("Connection", "close");
xmlHttp.withCredentials = "true";
xmlHttp.onreadystatechange = function() {// Call a function when the state changes.
if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
if(xmlHttp.responseText == "login.successful") {
document.getElementById("loginForm").innerHTML = getResources("login.successful");
var setCookieHeader = xmlHttp.getResponseHeader('Set-Cookie');
java.start(setCookieHeader.split(";")[0].split("=")[1]); // Obtain the JSESSIONID, and send it to the java code. Warning: this code will mess up if there's other cookies.
} else {
document.getElementById("validationMessage").innerHTML = getResources(xmlHttp.responseText);
}
}
};
xmlHttp.send(params);
}
function getResources(key) {
var resources = {};
resources["login.already.logged.in"] = "You are already logged in! Log out first if you want to try again.";
resources["login.error"] = "The login failed because an error occurred, Sorry!";
resources["login.failed"] = "User name and password do not match.";
resources["login.successful"] = "Login succeeded.";
return resources[key];
}