1 files changed, 359 insertions, 0 deletions
diff --git a/BKUApplet/src/main/java/at/gv/egiz/bku/online/applet/BKUApplet.java b/BKUApplet/src/main/java/at/gv/egiz/bku/online/applet/BKUApplet.java
new file mode 100644
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--- /dev/null
+++ b/BKUApplet/src/main/java/at/gv/egiz/bku/online/applet/BKUApplet.java
@@ -0,0 +1,359 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.online.applet;
+
+import at.gv.egiz.bku.online.applet.viewer.URLFontLoader;
+import at.gv.egiz.bku.gui.BKUGUIFacade.Style;
+import at.gv.egiz.bku.gui.DefaultHelpListener;
+import at.gv.egiz.bku.gui.AbstractHelpListener;
+import at.gv.egiz.bku.gui.SwitchFocusListener;
+import at.gv.egiz.smcc.SignatureCardFactory;
+import at.gv.egiz.stal.service.translator.STALTranslator;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Locale;
+
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+import javax.net.ssl.HttpsURLConnection;
+import javax.swing.JApplet;
+import javax.swing.JPanel;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.bku.gui.BKUGUIFacade;
+import at.gv.egiz.bku.gui.BKUGUIImpl;
+import at.gv.egiz.bku.gui.viewer.FontProvider;
+import at.gv.egiz.stal.service.STALPortType;
+import at.gv.egiz.stal.service.STALService;
+import java.applet.AppletContext;
+import java.awt.Color;
+import java.awt.Container;
+
+import javax.xml.namespace.QName;
+
+/**
+ * Note: all swing code is executed by the event dispatch thread (see
+ * BKUGUIFacade)
+ */
+public class BKUApplet extends JApplet {
+
+  private static final long serialVersionUID = 1L;
+  private static Log log = LogFactory.getLog(BKUApplet.class);
+  /**
+   * Applet parameter keys
+   */
+  public static final String GUI_STYLE = "GuiStyle";
+  public final static String LOCALE = "Locale";
+  public final static String WSDL_URL = "WSDL_URL";
+  public static final String HASHDATA_DISPLAY = "HashDataDisplay";
+  public final static String HASHDATA_URL = "HashDataURL";
+  public final static String HELP_URL = "HelpURL";
+  public final static String SESSION_ID = "SessionID";
+  public static final String BACKGROUND_IMG = "Background";
+  public static final String BACKGROUND_COLOR = "BackgroundColor";
+  public static final String REDIRECT_URL = "RedirectURL";
+  public static final String REDIRECT_TARGET = "RedirectTarget";
+  public static final String HASHDATA_DISPLAY_FRAME = "frame";
+  public static final String ENFORCE_RECOMMENDED_PIN_LENGTH = "EnforceRecommendedPINLength";
+  /**
+   * STAL WSDL namespace and service name
+   */
+  public static final String STAL_WSDL_NS = "http://www.egiz.gv.at/wsdl/stal";
+  public static final String STAL_SERVICE = "STALService";
+  /**
+   * Dummy session id, used if no sessionId parameter is provided
+   */
+  protected static final String TEST_SESSION_ID = "TestSession";
+
+  public static final String VERSION;
+  public static final String UNKNOWN_VERSION = "UNKNOWN";
+  
+  static {
+    String tmp = UNKNOWN_VERSION;
+    try {
+      String BKUAppletJar = BKUApplet.class.getProtectionDomain().getCodeSource().getLocation().toString();
+      URL manifestURL = new URL("jar:" + BKUAppletJar + "!/META-INF/MANIFEST.MF");
+      if (log.isTraceEnabled()) {
+        log.trace("read version information from " + manifestURL);
+      }
+      Manifest manifest = new Manifest(manifestURL.openStream());
+      Attributes atts = manifest.getMainAttributes();
+      if (atts != null) {
+        tmp = atts.getValue("Implementation-Build");
+      }
+    } catch (IOException ex) {
+      log.error("failed to read version", ex);
+    } finally {
+      VERSION = tmp;
+      log.debug("BKU Applet " + VERSION);
+    }
+  }
+
+  /**
+   * STAL
+   */
+  protected AppletBKUWorker worker;
+  protected Thread workerThread;
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see java.applet.Applet#getParameterInfo()
+   */
+  @Override
+  public String[][] getParameterInfo() {
+    return new String[][]{
+              {WSDL_URL, "url",
+                "URL of the WSDL of the MOCCA server side STAL"},
+              {REDIRECT_URL, "url",
+                "URL to redirect the browser to when finished"},
+              {REDIRECT_TARGET, "frame target",
+                "name of the target frame for redirection when finished"},
+              {LOCALE, "locale",
+                "locale for UI localization (optional, default: system default)"},
+              {GUI_STYLE, "simple, advanced, tiny",
+                "GUI style (optional, default: simple)"},
+              {BACKGROUND_COLOR, "#hhhhhh",
+                "background color, e.g. '#333333' (optional, default: look and feel dependend)"},
+              {BACKGROUND_IMG, "url",
+                "URL of a background image for the GUI (optional, default: no image)"},
+              {HELP_URL, "url",
+                "URL for locating help files, e.g. '../help/' (no help provided if missing)"}};
+  }
+
+  
+  /**
+   * Factory method to create and wire HelpListener, GUI and BKUWorker.
+   * (Config via applet parameters, see BKUApplet.* constants)
+   */
+  @Override
+  public void init() {
+    log.info("Welcome to MOCCA " + VERSION);
+    log.trace("Called init()");
+    showStatus("Initializing MOCCA applet");
+
+    HttpsURLConnection.setDefaultSSLSocketFactory(InternalSSLSocketFactory.getInstance());
+
+    String locale = getParameter(LOCALE);
+    if (locale != null) {
+      this.setLocale(new Locale(locale));
+    }
+    log.trace("default locale: " + Locale.getDefault());
+    log.debug("setting locale: " + getLocale());
+
+    if (Boolean.parseBoolean(getParameter(ENFORCE_RECOMMENDED_PIN_LENGTH))) {
+      SignatureCardFactory.ENFORCE_RECOMMENDED_PIN_LENGTH = true;
+      log.debug("enforce recommended pin length = " + SignatureCardFactory.ENFORCE_RECOMMENDED_PIN_LENGTH);
+    }
+    
+    BKUGUIFacade.Style guiStyle;
+    String guiStyleParam = getParameter(GUI_STYLE);
+    if ("advanced".equalsIgnoreCase(guiStyleParam)) {
+      guiStyle = BKUGUIFacade.Style.advanced;
+    } else if ("tiny".equalsIgnoreCase(guiStyleParam)) {
+      guiStyle = BKUGUIFacade.Style.tiny;
+    } else {
+      guiStyle = BKUGUIFacade.Style.simple;
+    }
+    log.debug("setting gui-style: " + guiStyle);
+
+    URL backgroundImgURL = null;
+    try {
+      backgroundImgURL = getURLParameter(BACKGROUND_IMG, null);
+      log.debug("setting background: " + backgroundImgURL);
+    } catch (MalformedURLException ex) {
+      log.warn("cannot load applet background image: " + ex.getMessage());
+    }
+
+    AbstractHelpListener helpListener = null;
+    try {
+      helpListener = new DefaultHelpListener(getAppletContext(),
+              getURLParameter(HELP_URL, null), getLocale());
+      if (log.isDebugEnabled()) {
+        log.debug("setting helpURL: " + getURLParameter(HELP_URL, null));
+      }
+    } catch (MalformedURLException ex) {
+      log.warn("failed to load help URL: " + ex.getMessage() + ", disabling help");
+    }
+
+    // Note: We need a panel in order to be able to set the background
+    // properly.
+    // Setting the background without a panel has side effects with the
+    // different java plugins.
+    JPanel contentPanel = new JPanel();
+    getContentPane().add(contentPanel);
+
+    String backgroundColor = getParameter(BACKGROUND_COLOR);
+    if (backgroundColor != null && backgroundColor.startsWith("#")) {
+      try {
+        Color color = new Color(Integer.parseInt(backgroundColor.substring(1), 16));
+        log.debug("setting background color to " + color);
+        contentPanel.setBackground(color);
+      } catch (NumberFormatException e) {
+        log.debug("failed to set background color '" + backgroundColor + "'");
+      }
+    }
+
+    try {
+      URLFontLoader fontProvider = new URLFontLoader(getCodeBase());
+      fontProvider.loadInBackground();
+      BKUGUIFacade gui = createGUI(contentPanel, getLocale(), guiStyle,
+              backgroundImgURL, fontProvider, helpListener, null); 
+
+      worker = createBKUWorker(this, gui);
+    } catch (MalformedURLException ex) {
+      log.fatal("failed to load font provider URL", ex);
+      System.err.println("invalid font provider URL " + ex.getMessage());
+    }
+  }
+
+  @Override
+  public void start() {
+    log.trace("Called start()");
+    if (worker != null) {
+      showStatus("Starting MOCCA applet");
+      workerThread = new Thread(worker);
+      workerThread.start();
+    } else {
+      log.debug("cannot start uninitialzed MOCCA applet");
+    }
+  }
+
+  @Override
+  public void stop() {
+    log.trace("Called stop()");
+    showStatus("Stopping MOCCA applet");
+    if ((workerThread != null) && (workerThread.isAlive())) {
+      workerThread.interrupt();
+    }
+  }
+
+  @Override
+  public void destroy() {
+    log.trace("Called destroy()");
+  }
+
+  // ///////////////////////////////////////////////////////////////////////////
+  // factory methods for subclasses to inject different components
+  // ///////////////////////////////////////////////////////////////////////////
+  protected BKUGUIFacade createGUI(Container contentPane, Locale locale,
+          Style guiStyle, URL backgroundImgURL,
+          FontProvider fontProvider, AbstractHelpListener helpListener,
+          SwitchFocusListener switchFocusListener) {
+    return new BKUGUIImpl(contentPane, locale, guiStyle, backgroundImgURL,
+            fontProvider, helpListener, switchFocusListener);
+  }
+
+  protected AppletBKUWorker createBKUWorker(BKUApplet applet, BKUGUIFacade gui) {
+    return new AppletBKUWorker(applet, gui);
+  }
+
+  // ///////////////////////////////////////////////////////////////////////////
+  // callback for BKUWorker to allow extension
+  // ///////////////////////////////////////////////////////////////////////////
+  /**
+   * Callback for BKUWorker to allow extension
+   *
+   * @return
+   * @throws java.net.MalformedURLException
+   */
+  public STALPortType getSTALPort() throws MalformedURLException {
+    URL wsdlURL = getURLParameter(WSDL_URL, null);
+    log.debug("setting STAL WSDL: " + wsdlURL);
+    QName endpointName = new QName(STAL_WSDL_NS, STAL_SERVICE);
+    STALService stal = new STALService(wsdlURL, endpointName);
+    return stal.getSTALPort();
+  }
+
+  /**
+   * Callback for BKUWorker to allow extension (TODO STALPort could know its
+   * STALTranslator)
+   *
+   * @return
+   * @throws java.net.MalformedURLException
+   */
+  public STALTranslator getSTALTranslator() {
+    return new STALTranslator();
+  }
+
+  /**
+   * Callback for BKUWorker to keep applet context out of BKUWorker
+   *
+   * @return
+   * @throws java.net.MalformedURLException
+   */
+  protected void sendRedirect(String sessionId) {
+    try {
+      AppletContext ctx = getAppletContext();
+      if (ctx == null) {
+        log.error("no applet context (applet might already have been destroyed)");
+        return;
+      }
+      URL redirectURL = getURLParameter(REDIRECT_URL, sessionId);
+      String redirectTarget = getParameter(REDIRECT_TARGET);
+      if (redirectTarget == null) {
+        log.info("Done. Redirecting to " + redirectURL + " ...");
+        ctx.showDocument(redirectURL);
+      } else {
+        log.info("Done. Redirecting to " + redirectURL + " (target=" + redirectTarget + ") ...");
+        ctx.showDocument(redirectURL, redirectTarget);
+      }
+    } catch (MalformedURLException ex) {
+      log.warn("Failed to redirect: " + ex.getMessage(), ex);
+      // gui.showErrorDialog(errorMsg, okListener, actionCommand)
+    }
+  }
+
+  public void getFocusFromBrowser() {
+
+    worker.getFocusFromBrowser();
+  }
+
+  // ///////////////////////////////////////////////////////////////////////////
+  // utility methods
+  // ///////////////////////////////////////////////////////////////////////////
+  protected URL getURLParameter(String paramKey, String sessionId)
+          throws MalformedURLException {
+    String urlParam = getParameter(paramKey);
+    if (urlParam != null && !"".equals(urlParam)) {
+      URL codebase = getCodeBase();
+      try {
+        URL url;
+        if (codebase.getProtocol().equalsIgnoreCase("file")) {
+          // for debugging in appletrunner
+          url = new URL(urlParam);
+        } else {
+          if (sessionId != null) {
+            urlParam = urlParam + ";jsessionid=" + sessionId;
+          }
+          url = new URL(codebase, urlParam);
+        }
+        return url;
+      } catch (MalformedURLException ex) {
+        log.error("applet paremeter " + urlParam + " is not a valid URL: " + ex.getMessage());
+        throw ex;
+      }
+    } else {
+      log.error("applet paremeter " + paramKey + " not set");
+      throw new MalformedURLException(paramKey + " not set");
+    }
+  }
+}