content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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 domainapp.webapp;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.charset.Charset;
  import java.util.List;
  
  import javax.servlet.http.HttpServletRequest;
  
  import com.google.common.base.Joiner;
  import com.google.common.io.Resources;
  import com.google.inject.AbstractModule;
  import com.google.inject.Module;
  import com.google.inject.name.Names;
  import com.google.inject.util.Modules;
  import com.google.inject.util.Providers;
  
  import org.apache.wicket.Session;
  import org.apache.wicket.request.IRequestParameters;
  import org.apache.wicket.request.Request;
  import org.apache.wicket.request.Response;
  import org.apache.wicket.request.http.WebRequest;
  
  import org.apache.isis.viewer.wicket.viewer.IsisWicketApplication;
  import org.apache.isis.viewer.wicket.viewer.integration.wicket.AuthenticatedWebSessionForIsis;
  
  import de.agilecoders.wicket.core.Bootstrap;
  import de.agilecoders.wicket.core.settings.IBootstrapSettings;
  import de.agilecoders.wicket.themes.markup.html.bootswatch.BootswatchTheme;
  import de.agilecoders.wicket.themes.markup.html.bootswatch.BootswatchThemeProvider;
  
  
  /**
   * As specified in <tt>web.xml</tt>.
   * 
   * <p>
   * See:
   * <pre>
   * &lt;filter>
   *   &lt;filter-name>wicket&lt;/filter-name>
   *    &lt;filter-class>org.apache.wicket.protocol.http.WicketFilter&lt;/filter-class>
   *    &lt;init-param>
   *      &lt;param-name>applicationClassName&lt;/param-name>
   *      &lt;param-value>webapp.SimpleApplication&lt;/param-value>
   *    &lt;/init-param>
   * &lt;/filter>
   * </pre>
   * 
   */
  public class SimpleApplication extends IsisWicketApplication {
  
      private static final long serialVersionUID = 1L;
  
      /**
       * uncomment for a (slightly hacky) way of allowing logins using query args, eg:
       * 
       * <tt>?user=sven&pass=pass</tt>
       * 
       * <p>
       * for demos only, obvious.
       */
      private final static boolean DEMO_MODE_USING_CREDENTIALS_AS_QUERYARGS = false;
  
  
      @Override
      protected void init() {
          super.init();
  
          IBootstrapSettings settings = Bootstrap.getSettings();
          settings.setThemeProvider(new BootswatchThemeProvider(BootswatchTheme.Flatly));
      }
  
      @Override
      public Session newSession(final Request request, final Response response) {
          if(!DEMO_MODE_USING_CREDENTIALS_AS_QUERYARGS) {
              return super.newSession(request, response);
          } 
          
          // else demo mode
          final AuthenticatedWebSessionForIsis s = (AuthenticatedWebSessionForIsis) super.newSession(request, response);
          IRequestParameters requestParameters = request.getRequestParameters();
          final org.apache.wicket.util.string.StringValue user = requestParameters.getParameterValue("user");
          final org.apache.wicket.util.string.StringValue password = requestParameters.getParameterValue("pass");
          s.signIn(user.toString(), password.toString());
          return s;
      }
  
      @Override
      public WebRequest newWebRequest(HttpServletRequest servletRequest, String filterPath) {
          if(!DEMO_MODE_USING_CREDENTIALS_AS_QUERYARGS) {
              return super.newWebRequest(servletRequest, filterPath);
          } 
  
          // else demo mode
          try {
              String uname = servletRequest.getParameter("user");
              if (uname != null) {
                  servletRequest.getSession().invalidate();
              }
          } catch (Exception e) {
          }
          WebRequest request = super.newWebRequest(servletRequest, filterPath);
          return request;
      }
      
      @Override
      protected Module newIsisWicketModule() {
          final Module isisDefaults = super.newIsisWicketModule();
          
          final Module overrides = new AbstractModule() {
              @Override
              protected void configure() {
                  bind(String.class).annotatedWith(Names.named("applicationName")).toInstance("Simple App");
                  bind(String.class).annotatedWith(Names.named("applicationCss")).toInstance("css/application.css");
                  bind(String.class).annotatedWith(Names.named("applicationJs")).toInstance("scripts/application.js");
                  bind(String.class).annotatedWith(Names.named("welcomeMessage")).toInstance(readLines(getClass(), "welcome.html"));
                  bind(String.class).annotatedWith(Names.named("aboutMessage")).toInstance("Simple App");
                  bind(InputStream.class).annotatedWith(Names.named("metaInfManifest")).toProvider(Providers.of(getServletContext().getResourceAsStream("/META-INF/MANIFEST.MF")));
              }
          };
  
          return Modules.override(isisDefaults).with(overrides);
      }
  
      private static String readLines(final Class<?> contextClass, final String resourceName) {
          try {
              List<String> readLines = Resources.readLines(Resources.getResource(contextClass, resourceName), Charset.defaultCharset());
              final String aboutText = Joiner.on("\n").join(readLines);
              return aboutText;
          } catch (IOException e) {
              return "This is a simple app";
          }
      }
  
  }
  