James Moger
2013-11-25 3a9e76b63f09a32e0b6812e18ffff00fab8e58e6
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/*
 * Copyright 2011 gitblit.com.
 *
 * 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 com.gitblit.wicket;
 
import org.apache.wicket.Component;
import org.apache.wicket.RestartResponseException;
import org.apache.wicket.authorization.IUnauthorizedComponentInstantiationListener;
import org.apache.wicket.authorization.strategies.page.AbstractPageAuthorizationStrategy;
import org.apache.wicket.markup.html.WebPage;
 
import com.gitblit.IStoredSettings;
import com.gitblit.Keys;
import com.gitblit.models.UserModel;
import com.gitblit.wicket.pages.BasePage;
 
public class AuthorizationStrategy extends AbstractPageAuthorizationStrategy implements
        IUnauthorizedComponentInstantiationListener {
 
    IStoredSettings settings;
    Class<? extends WebPage> homepageClass;
 
    public AuthorizationStrategy(IStoredSettings settings, Class<? extends WebPage> homepageClass) {
        this.settings = settings;
        this.homepageClass = homepageClass;
    }
 
    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Override
    protected boolean isPageAuthorized(Class pageClass) {
        if (homepageClass.equals(pageClass)) {
            // allow all requests to get to the HomePage with its inline
            // authentication form
            return true;
        }
 
        if (BasePage.class.isAssignableFrom(pageClass)) {
            boolean authenticateView = settings.getBoolean(Keys.web.authenticateViewPages, true);
            boolean authenticateAdmin = settings.getBoolean(Keys.web.authenticateAdminPages, true);
            boolean allowAdmin = settings.getBoolean(Keys.web.allowAdministration, true);
 
            GitBlitWebSession session = GitBlitWebSession.get();
            if (authenticateView && !session.isLoggedIn()) {
                // authentication required
                session.cacheRequest(pageClass);
                return false;
            }
 
            UserModel user = session.getUser();
            if (pageClass.isAnnotationPresent(RequiresAdminRole.class)) {
                // admin page
                if (allowAdmin) {
                    if (authenticateAdmin) {
                        // authenticate admin
                        if (user != null) {
                            return user.canAdmin();
                        }
                        return false;
                    } else {
                        // no admin authentication required
                        return true;
                    }
                } else {
                    // admin prohibited
                    return false;
                }
            }
        }
        return true;
    }
 
    @Override
    public void onUnauthorizedInstantiation(Component component) {
 
        if (component instanceof BasePage) {
            throw new RestartResponseException(homepageClass);
        }
    }
}