/**
   * Parses the given http response.
   *
   * @param response the http response to parse
   * @return the new account
   */
  private NewAccount parseHttpResponse(String response) {
    NewAccount newAccount = null;
    try {
      JSONObject jsonObject = (JSONObject) JSONValue.parseWithException(response);
      boolean isSuccess = (Boolean) jsonObject.get("success");

      if (isSuccess) {
        newAccount =
            new NewAccount(
                (String) jsonObject.get("sip_address"),
                passField.getPassword(),
                null,
                (String) jsonObject.get("outbound_proxy"));

        String xcapRoot = (String) jsonObject.get("xcap_root");

        // as sip2sip adds @sip2sip.info at the end of the
        // xcap_uri but doesn't report it in resullt after
        // creating account, we add it
        String domain = null;
        int delimIndex = newAccount.getUserName().indexOf("@");
        if (delimIndex != -1) {
          domain = newAccount.getUserName().substring(delimIndex);
        }
        if (domain != null) {
          if (xcapRoot.endsWith("/"))
            xcapRoot = xcapRoot.substring(0, xcapRoot.length() - 1) + domain;
          else xcapRoot += domain;
        }

        newAccount.setXcapRoot(xcapRoot);
      } else {
        showErrorMessage((String) jsonObject.get("error_message"));
      }
    } catch (Throwable e1) {
      if (logger.isInfoEnabled()) logger.info("Failed Json parsing.", e1);
    }

    return newAccount;
  }
/** @author Yana Stamcheva */
public class CreateSip2SipAccountForm extends TransparentPanel
    implements SIPAccountCreationFormService {
  /** Serial version UID. */
  private static final long serialVersionUID = 0L;

  /** The logger. */
  private static final Logger logger = Logger.getLogger(CreateSip2SipAccountForm.class);

  /** The user name text field. */
  private final JTextField usernameField = new TrimTextField();

  /** The display name text field. */
  private final JTextField displayNameField = new JTextField();

  /** The password field. */
  private final JPasswordField passField = new JPasswordField();

  /** The retype password field. */
  private final JPasswordField retypePassField = new JPasswordField();

  /** The email field. */
  private final JTextField emailField = new JTextField();

  /** The error text pane. */
  private final JTextPane errorPane = new JTextPane();

  /** The register link. */
  private static String registerLink = "https://enrollment.sipthor.net/enrollment.phtml?";

  /** Creates an instance of <tt>RegisterSip2SipAccountForm</tt>. */
  public CreateSip2SipAccountForm() {
    super(new BorderLayout());

    this.init();
  }

  /** Initializes this panel. */
  private void init() {
    JPanel mainPanel = new TransparentPanel(new BorderLayout());

    mainPanel.setBorder(
        BorderFactory.createTitledBorder(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sipaccregwizz.CREATE_ACCOUNT_TITLE")));

    JPanel labelsPanel = new TransparentPanel(new GridLayout(0, 1));

    JPanel valuesPanel = new TransparentPanel(new GridLayout(0, 1));

    JLabel usernameLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sip2sipaccregwizz.USERNAME"));

    JLabel displayNameLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sipaccregwizz.DISPLAY_NAME"));

    JLabel passLabel =
        new JLabel(Sip2SipAccRegWizzActivator.getResources().getI18NString("service.gui.PASSWORD"));

    JLabel retypePasswordLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sip2sipaccregwizz.RETYPE_PASSWORD"));

    JLabel emailLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sip2sipaccregwizz.EMAIL"));

    labelsPanel.add(displayNameLabel);
    labelsPanel.add(usernameLabel);
    labelsPanel.add(passLabel);
    labelsPanel.add(retypePasswordLabel);
    labelsPanel.add(emailLabel);

    valuesPanel.add(displayNameField);
    valuesPanel.add(usernameField);
    valuesPanel.add(passField);
    valuesPanel.add(retypePassField);
    valuesPanel.add(emailField);

    JLabel emailDescriptionLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sip2sipaccregwizz.EMAIL_NOTE"),
            SwingConstants.CENTER);
    emailDescriptionLabel.setForeground(Color.GRAY);
    emailDescriptionLabel.setFont(emailDescriptionLabel.getFont().deriveFont(8));
    emailDescriptionLabel.setBorder(BorderFactory.createEmptyBorder(0, 10, 8, 10));

    initErrorArea();

    mainPanel.add(labelsPanel, BorderLayout.WEST);
    mainPanel.add(valuesPanel, BorderLayout.CENTER);
    mainPanel.add(emailDescriptionLabel, BorderLayout.SOUTH);

    this.add(mainPanel, BorderLayout.CENTER);

    JLabel infoLabel =
        new JLabel(
            Sip2SipAccRegWizzActivator.getResources()
                .getI18NString("plugin.sip2sipaccregwizz.INFO_NOTE"),
            SwingConstants.RIGHT);
    infoLabel.setCursor(new Cursor(Cursor.HAND_CURSOR));
    infoLabel.setForeground(Color.GRAY);
    infoLabel.setFont(emailDescriptionLabel.getFont().deriveFont(8));
    infoLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 8, 0));
    infoLabel.addMouseListener(
        new MouseAdapter() {
          @Override
          public void mousePressed(MouseEvent e) {
            Sip2SipAccRegWizzActivator.getBrowserLauncher().openURL("http://wiki.sip2sip.info");
          }
        });

    this.add(infoLabel, BorderLayout.SOUTH);
  }

  /** Creates the error area component. */
  private void initErrorArea() {
    SimpleAttributeSet attribs = new SimpleAttributeSet();
    StyleConstants.setAlignment(attribs, StyleConstants.ALIGN_RIGHT);
    StyleConstants.setFontFamily(attribs, errorPane.getFont().getFamily());
    StyleConstants.setForeground(attribs, Color.RED);
    errorPane.setParagraphAttributes(attribs, true);
    errorPane.setPreferredSize(new Dimension(100, 50));
    errorPane.setMinimumSize(new Dimension(100, 50));
    errorPane.setOpaque(false);
  }

  /**
   * Creates this account on the server.
   *
   * @return the created account
   */
  public NewAccount createAccount() {
    // Check if the two passwords match.
    String pass1 = new String(passField.getPassword());
    String pass2 = new String(retypePassField.getPassword());
    if (!pass1.equals(pass2)) {
      showErrorMessage(
          IppiAccRegWizzActivator.getResources()
              .getI18NString("plugin.sipaccregwizz.NOT_SAME_PASSWORD"));

      return null;
    }

    NewAccount newAccount = null;
    try {
      StringBuilder registerLinkBuilder = new StringBuilder(registerLink);
      registerLinkBuilder
          .append(URLEncoder.encode("email", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(emailField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("password", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(new String(passField.getPassword()), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("display_name", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(displayNameField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("username", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(usernameField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("user_agent", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode("sip-communicator.org", "UTF-8"));

      URL url = new URL(registerLinkBuilder.toString());
      URLConnection conn = url.openConnection();

      // If this is not an http connection we have nothing to do here.
      if (!(conn instanceof HttpURLConnection)) {
        return null;
      }

      HttpURLConnection httpConn = (HttpURLConnection) conn;

      int responseCode = httpConn.getResponseCode();

      if (responseCode == HttpURLConnection.HTTP_OK) {
        // Read all the text returned by the server
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String str;

        StringBuffer stringBuffer = new StringBuffer();
        while ((str = in.readLine()) != null) {
          stringBuffer.append(str);
        }

        if (logger.isInfoEnabled())
          logger.info("JSON response to create account request: " + stringBuffer.toString());

        newAccount = parseHttpResponse(stringBuffer.toString());
      }
    } catch (MalformedURLException e1) {
      if (logger.isInfoEnabled())
        logger.info("Failed to create URL with string: " + registerLink, e1);
    } catch (IOException e1) {
      if (logger.isInfoEnabled()) logger.info("Failed to open connection.", e1);
    }
    return newAccount;
  }

  /**
   * Returns the form, which would be used by the user to create a new account.
   *
   * @return the component of the form
   */
  public Component getForm() {
    return this;
  }

  /** Clears all the data previously entered in the form. */
  public void clear() {
    usernameField.setText("");
    displayNameField.setText("");
    passField.setText("");
    retypePassField.setText("");
    emailField.setText("");
    errorPane.setText("");

    remove(errorPane);
  }

  /**
   * Parses the given http response.
   *
   * @param response the http response to parse
   * @return the new account
   */
  private NewAccount parseHttpResponse(String response) {
    NewAccount newAccount = null;
    try {
      JSONObject jsonObject = (JSONObject) JSONValue.parseWithException(response);
      boolean isSuccess = (Boolean) jsonObject.get("success");

      if (isSuccess) {
        newAccount =
            new NewAccount(
                (String) jsonObject.get("sip_address"),
                passField.getPassword(),
                null,
                (String) jsonObject.get("outbound_proxy"));

        String xcapRoot = (String) jsonObject.get("xcap_root");

        // as sip2sip adds @sip2sip.info at the end of the
        // xcap_uri but doesn't report it in resullt after
        // creating account, we add it
        String domain = null;
        int delimIndex = newAccount.getUserName().indexOf("@");
        if (delimIndex != -1) {
          domain = newAccount.getUserName().substring(delimIndex);
        }
        if (domain != null) {
          if (xcapRoot.endsWith("/"))
            xcapRoot = xcapRoot.substring(0, xcapRoot.length() - 1) + domain;
          else xcapRoot += domain;
        }

        newAccount.setXcapRoot(xcapRoot);
      } else {
        showErrorMessage((String) jsonObject.get("error_message"));
      }
    } catch (Throwable e1) {
      if (logger.isInfoEnabled()) logger.info("Failed Json parsing.", e1);
    }

    return newAccount;
  }

  /**
   * Shows the given error message.
   *
   * @param text the text of the error
   */
  private void showErrorMessage(String text) {
    errorPane.setText(text);

    if (errorPane.getParent() == null) add(errorPane, BorderLayout.NORTH);

    SwingUtilities.getWindowAncestor(CreateSip2SipAccountForm.this).pack();
  }
}
  /**
   * Creates this account on the server.
   *
   * @return the created account
   */
  public NewAccount createAccount() {
    // Check if the two passwords match.
    String pass1 = new String(passField.getPassword());
    String pass2 = new String(retypePassField.getPassword());
    if (!pass1.equals(pass2)) {
      showErrorMessage(
          IppiAccRegWizzActivator.getResources()
              .getI18NString("plugin.sipaccregwizz.NOT_SAME_PASSWORD"));

      return null;
    }

    NewAccount newAccount = null;
    try {
      StringBuilder registerLinkBuilder = new StringBuilder(registerLink);
      registerLinkBuilder
          .append(URLEncoder.encode("email", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(emailField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("password", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(new String(passField.getPassword()), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("display_name", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(displayNameField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("username", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode(usernameField.getText(), "UTF-8"))
          .append("&")
          .append(URLEncoder.encode("user_agent", "UTF-8"))
          .append("=")
          .append(URLEncoder.encode("sip-communicator.org", "UTF-8"));

      URL url = new URL(registerLinkBuilder.toString());
      URLConnection conn = url.openConnection();

      // If this is not an http connection we have nothing to do here.
      if (!(conn instanceof HttpURLConnection)) {
        return null;
      }

      HttpURLConnection httpConn = (HttpURLConnection) conn;

      int responseCode = httpConn.getResponseCode();

      if (responseCode == HttpURLConnection.HTTP_OK) {
        // Read all the text returned by the server
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String str;

        StringBuffer stringBuffer = new StringBuffer();
        while ((str = in.readLine()) != null) {
          stringBuffer.append(str);
        }

        if (logger.isInfoEnabled())
          logger.info("JSON response to create account request: " + stringBuffer.toString());

        newAccount = parseHttpResponse(stringBuffer.toString());
      }
    } catch (MalformedURLException e1) {
      if (logger.isInfoEnabled())
        logger.info("Failed to create URL with string: " + registerLink, e1);
    } catch (IOException e1) {
      if (logger.isInfoEnabled()) logger.info("Failed to open connection.", e1);
    }
    return newAccount;
  }