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package com.vaadin.tests.applicationcontext;

import com.vaadin.server.VaadinService;
import com.vaadin.tests.components.AbstractTestCase;
import com.vaadin.tests.util.Log;
import com.vaadin.ui.Button;
import com.vaadin.ui.LegacyWindow;

public class ChangeSessionId extends AbstractTestCase {

    private Log log = new Log(5);
    Button loginButton = new Button("Change session");
    boolean requestSessionSwitch = false;

    @Override
    public void init() {
        LegacyWindow mainWindow = new LegacyWindow("Sestest Application");
        mainWindow.addComponent(log);
        mainWindow.addComponent(loginButton);
        mainWindow.addComponent(
                new Button("Show session id", event -> logSessionId()));
        setMainWindow(mainWindow);

        loginButton.addClickListener(event -> {
            String oldSessionId = getSessionId();
            VaadinService
                    .reinitializeSession(VaadinService.getCurrentRequest());
            String newSessionId = getSessionId();
            if (oldSessionId.equals(newSessionId)) {
                log.log("FAILED! Both old and new session id is "
                        + newSessionId);
            } else {
                log.log("Session id changed successfully from " + oldSessionId
                        + " to " + newSessionId);
            }
        });
        logSessionId();
    }

    private void logSessionId() {
        log.log("Session id: " + getSessionId());
    }

    protected String getSessionId() {
        return getContext().getSession().getId();
    }

    @Override
    protected String getDescription() {
        return "Tests that the session id can be changed to prevent session fixation attacks";
    }

    @Override
    protected Integer getTicketNumber() {
        return 6094;
    }

}