001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.util;
016    
017    import com.liferay.portal.kernel.exception.SystemException;
018    import com.liferay.portal.kernel.json.JSONFactoryUtil;
019    import com.liferay.portal.kernel.json.JSONObject;
020    import com.liferay.portal.kernel.log.Log;
021    import com.liferay.portal.kernel.log.LogFactoryUtil;
022    import com.liferay.portal.kernel.util.Http;
023    import com.liferay.portal.kernel.util.HttpUtil;
024    import com.liferay.portal.kernel.util.PropsKeys;
025    import com.liferay.portal.kernel.util.Validator;
026    
027    import javax.portlet.PortletRequest;
028    
029    import javax.servlet.http.HttpServletRequest;
030    import javax.servlet.http.HttpSession;
031    
032    /**
033     * @author Wilson Man
034     */
035    public class FacebookConnectUtil {
036    
037            public static String getAccessTokenURL(long companyId)
038                    throws SystemException {
039    
040                    return PrefsPropsUtil.getString(
041                            companyId, PropsKeys.FACEBOOK_CONNECT_OAUTH_TOKEN_URL,
042                            PropsValues.FACEBOOK_CONNECT_OAUTH_TOKEN_URL);
043            }
044    
045            public static String getAppId(long companyId) throws SystemException {
046                    return PrefsPropsUtil.getString(
047                            companyId, PropsKeys.FACEBOOK_CONNECT_APP_ID,
048                            PropsValues.FACEBOOK_CONNECT_APP_ID);
049            }
050    
051            public static String getAppSecret(long companyId) throws SystemException {
052                    return PrefsPropsUtil.getString(
053                            companyId, PropsKeys.FACEBOOK_CONNECT_APP_SECRET,
054                            PropsValues.FACEBOOK_CONNECT_APP_SECRET);
055            }
056    
057            public static String getAuthURL(long companyId) throws SystemException {
058                    return PrefsPropsUtil.getString(
059                            companyId, PropsKeys.FACEBOOK_CONNECT_OAUTH_AUTH_URL,
060                            PropsValues.FACEBOOK_CONNECT_OAUTH_AUTH_URL);
061            }
062    
063            public static JSONObject getGraphResources(
064                    long companyId, String path, String accessToken, String fields) {
065    
066                    try {
067                            String url = HttpUtil.addParameter(
068                                    getGraphURL(companyId) + path, "access_token", accessToken);
069    
070                            if (Validator.isNotNull(fields)) {
071                                    url = HttpUtil.addParameter(url, "fields", fields);
072                            }
073    
074                            Http.Options options = new Http.Options();
075    
076                            options.setLocation(url);
077    
078                            String json = HttpUtil.URLtoString(options);
079    
080                            return JSONFactoryUtil.createJSONObject(json);
081                    }
082                    catch (Exception e) {
083                            if (_log.isWarnEnabled()) {
084                                    _log.warn(e, e);
085                            }
086                    }
087    
088                    return null;
089            }
090    
091            public static String getGraphURL(long companyId) throws SystemException {
092                    return PrefsPropsUtil.getString(
093                            companyId, PropsKeys.FACEBOOK_CONNECT_GRAPH_URL,
094                            PropsValues.FACEBOOK_CONNECT_GRAPH_URL);
095            }
096    
097            public static String getProfileImageURL(PortletRequest portletRequest) {
098                    HttpServletRequest request = PortalUtil.getHttpServletRequest(
099                            portletRequest);
100    
101                    request = PortalUtil.getOriginalServletRequest(request);
102    
103                    HttpSession session = request.getSession();
104    
105                    String facebookId = (String)session.getAttribute(
106                            WebKeys.FACEBOOK_USER_ID);
107    
108                    if (Validator.isNull(facebookId)) {
109                            return null;
110                    }
111    
112                    long companyId = PortalUtil.getCompanyId(request);
113    
114                    String token = (String)session.getAttribute(
115                            WebKeys.FACEBOOK_ACCESS_TOKEN);
116    
117                    JSONObject jsonObject = getGraphResources(
118                            companyId, "/me", token, "id,picture");
119    
120                    return jsonObject.getString("picture");
121            }
122    
123            public static String getRedirectURL(long companyId) throws SystemException {
124                    return PrefsPropsUtil.getString(
125                            companyId, PropsKeys.FACEBOOK_CONNECT_OAUTH_REDIRECT_URL,
126                            PropsValues.FACEBOOK_CONNECT_OAUTH_REDIRECT_URL);
127            }
128    
129            public static boolean isEnabled(long companyId) throws SystemException {
130                    return PrefsPropsUtil.getBoolean(
131                            companyId, PropsKeys.FACEBOOK_CONNECT_AUTH_ENABLED,
132                            PropsValues.FACEBOOK_CONNECT_AUTH_ENABLED);
133            }
134    
135            private static Log _log = LogFactoryUtil.getLog(FacebookConnectUtil.class);
136    
137    }