com.fb.action.OpenGraphLayoutAction.java Source code

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Here is the source code for com.fb.action.OpenGraphLayoutAction.java

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/**
 * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */
package com.fb.action;

import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.kernel.struts.BaseStrutsAction;
import com.liferay.portal.kernel.struts.StrutsAction;
import com.liferay.portal.kernel.util.UnicodeProperties;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.model.Group;
import com.liferay.portal.model.Layout;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.PortalUtil;
import com.liferay.portal.webserver.WebServerServletTokenUtil;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Julio Camarero
 */
public class OpenGraphLayoutAction extends BaseStrutsAction {

    @Override
    public String execute(StrutsAction originalStrutsAction, HttpServletRequest request,
            HttpServletResponse response) throws Exception {

        addOpenGraphProperties(request);

        return originalStrutsAction.execute(request, response);
    }

    protected void addOpenGraphProperties(HttpServletRequest request) throws PortalException, SystemException {

        ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

        Map<String, String> opengraphAttributes = (Map<String, String>) request
                .getAttribute("LIFERAY_SHARED_OPENGRAPH");

        if (opengraphAttributes == null) {
            opengraphAttributes = new HashMap<String, String>();

            request.setAttribute("LIFERAY_SHARED_OPENGRAPH", opengraphAttributes);
        }

        UnicodeProperties layoutTypeSettings = null;
        Layout layout = themeDisplay.getLayout();
        Group group = themeDisplay.getScopeGroup();

        if (layout != null) {
            layoutTypeSettings = layout.getTypeSettingsProperties();
        }

        String ogTitle = layoutTypeSettings.getProperty("og-title");
        String ogType = layoutTypeSettings.getProperty("og-type");
        String ogImage = layoutTypeSettings.getProperty("og-image");

        String ogDescription = layoutTypeSettings.getProperty("og-description");
        String ogVideo = layoutTypeSettings.getProperty("og-video");
        String ogAudio = layoutTypeSettings.getProperty("og-audio");
        String ogDeterminer = layoutTypeSettings.getProperty("og-determiner");

        if (Validator.isNull(ogType)) {
            if (group.isUser()) {
                ogType = "profile";
            } else {
                ogType = "website";
            }
        }

        opengraphAttributes.put("type", ogType);

        opengraphAttributes.put("url",
                PortalUtil.getCanonicalURL(PortalUtil.getLayoutFullURL(themeDisplay), themeDisplay, layout));

        if (Validator.isNull(ogTitle)) {
            ogTitle = layout.getTitle(themeDisplay.getLanguageId());
        }

        opengraphAttributes.put("title", ogTitle);

        if (Validator.isNull(ogDescription)) {
            ogDescription = layout.getDescription(themeDisplay.getLanguageId());
        }

        if (Validator.isNotNull(ogDescription)) {
            opengraphAttributes.put("description", ogDescription);
        }

        if (Validator.isNotNull(ogVideo)) {
            opengraphAttributes.put("video", ogVideo);
        }

        if (Validator.isNotNull(ogAudio)) {
            opengraphAttributes.put("audio", ogAudio);
        }

        if (Validator.isNotNull(ogDeterminer)) {
            opengraphAttributes.put("determiner", ogDeterminer);
        }

        opengraphAttributes.put("site_name", group.getDescriptiveName());

        opengraphAttributes.put("locale", themeDisplay.getLanguageId());

        if (Validator.isNull(ogImage) && layout.isIconImage()) {
            ogImage = themeDisplay.getPathImage() + "/layout_icon?img_id=" + layout.getIconImageId() + "&t="
                    + WebServerServletTokenUtil.getToken(layout.getIconImageId());
        }

        if (Validator.isNotNull(ogImage)) {
            opengraphAttributes.put("image", ogImage);
        }
    }

}