net.scran24.admin.client.UserManager.java Source code

Introduction

Here is the source code for net.scran24.admin.client.UserManager.java

Source

/*
This file is part of Intake24.
    
 Crown copyright, 2012, 2013, 2014.
    
This software is licensed under the Open Government Licence 3.0:
    
http://www.nationalarchives.gov.uk/doc/open-government-licence/
*/

package net.scran24.admin.client;

import net.scran24.common.client.LoginForm;
import net.scran24.common.client.WidgetFactory;
import net.scran24.datastore.shared.UserInfo;

import org.workcraft.gwt.shared.client.Callback1;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.Window.Location;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FileUpload;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.FormPanel;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteHandler;
import com.google.gwt.user.client.ui.FormPanel.SubmitEvent;
import com.google.gwt.user.client.ui.FormPanel.SubmitHandler;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.RadioButton;
import com.google.gwt.user.client.ui.VerticalPanel;

public class UserManager extends Composite {

    public UserManager() {
        FlowPanel contents = new FlowPanel();

        final FormPanel form = new FormPanel();
        form.setAction(GWT.getModuleBaseURL() + "uploadUserInfo");

        form.setEncoding(FormPanel.ENCODING_MULTIPART);
        form.setMethod(FormPanel.METHOD_POST);

        VerticalPanel panel = new VerticalPanel();
        form.setWidget(panel);

        final FileUpload upload = new FileUpload();
        upload.setName("file");
        panel.add(upload);

        RadioButton append = new RadioButton("mode", "Append to existing user list");
        append.setFormValue("append");

        final RadioButton replace = new RadioButton("mode", "Replace existing user list");
        replace.setFormValue("replace");

        replace.setValue(true);

        panel.add(append);
        panel.add(replace);

        panel.add(WidgetFactory.createButton("Upload", new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                form.submit();
            }
        }));

        form.addSubmitHandler(new SubmitHandler() {
            @Override
            public void onSubmit(SubmitEvent event) {
                if (upload.getFilename().isEmpty()) {
                    Window.alert("Please choose a .csv file containing user information to upload");
                    event.cancel();
                } else if (replace.getValue())
                    if (!Window.confirm(
                            "Doing this will delete all user information from the database and replace it with the list you are submitting. Proceed?"))
                        event.cancel();
            }
        });

        form.addSubmitCompleteHandler(new SubmitCompleteHandler() {
            @Override
            public void onSubmitComplete(SubmitCompleteEvent event) {
                // This is not a very robust way of detecting the status code,
                // but unfortunately there does not seem to be a better way of doing
                // this
                // that supports IE8 -- Ivan.
                // https://code.google.com/p/google-web-toolkit/issues/detail?id=7365

                String result = event.getResults();

                if (result.equals("OK"))
                    Window.alert("User information uploaded.");
                else if (result.startsWith("ERR:")) {
                    Window.alert("There was a problem uploading the user information: " + result.substring(4));
                } else if (result.contains("401")) {
                    LoginForm.showPopup(new Callback1<UserInfo>() {
                        @Override
                        public void call(UserInfo info) {
                            form.submit();
                        }
                    });
                } else if (result.contains("403")) {
                    // User is not authorised, e.g. someone has logged on as admin,
                    // opened the user upload tab and timed out, then someone else
                    // logged on as someone who does not have the right to
                    // upload users. In this case, let them know and refresh the page
                    // to either show the UI that corresponds to their set of permissions
                    // or redirect them to another page.

                    Window.alert("You are not authorised to upload user information.");
                    Location.reload();
                }
            }
        });
        contents.add(new HTMLPanel("<h2>Staff user accounts</h2>"));
        contents.add(new Button("Add"));

        contents.add(new HTMLPanel("<h2>Respondent user accounts</h2>"));
        contents.add(form);

        initWidget(contents);
    }
}