/*
 * 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 org.apache.wicket.examples.authentication1;

import org.apache.wicket.Page;
import org.apache.wicket.RestartResponseAtInterceptPageException;
import org.apache.wicket.Session;
import org.apache.wicket.authorization.IAuthorizationStrategy;
import org.apache.wicket.examples.WicketExampleApplication;
import org.apache.wicket.request.Request;
import org.apache.wicket.request.Response;
import org.apache.wicket.request.component.IRequestableComponent;

/**
 * Forms example.
 * 
 * @author Jonathan Locke
 */
public final class SignInApplication extends WicketExampleApplication
{
    @Override
    public Class<? extends Page> getHomePage()
    {
        return Home.class;
    }

    @Override
    public Session newSession(Request request, Response response)
    {
        return new SignInSession(request);
    }

    @Override
    protected void init()
    {
        super.init();

        // Register the authorization strategy
        getSecuritySettings().setAuthorizationStrategy(new IAuthorizationStrategy.AllowAllAuthorizationStrategy()
        {
            @Override
            public <T extends IRequestableComponent> boolean isInstantiationAuthorized(
                Class<T> componentClass)
            {
                // Check if the new Page requires authentication (implements the marker interface)
                if (AuthenticatedWebPage.class.isAssignableFrom(componentClass))
                {
                    // Is user signed in?
                    if (((SignInSession)Session.get()).isSignedIn())
                    {
                        // okay to proceed
                        return true;
                    }

                    // Intercept the request, but remember the target for later.
                    // Invoke Component.continueToOriginalDestination() after successful logon to
                    // continue with the target remembered.

                    throw new RestartResponseAtInterceptPageException(SignIn.class);
                }

                // okay to proceed
                return true;
            }
        });
    }
}