001    /**
002     * Copyright (c) 2000-2012 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.jsonwebservice;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.servlet.PluginContextListener;
020    import com.liferay.portal.kernel.upload.UploadServletRequest;
021    import com.liferay.portal.kernel.util.ContextPathUtil;
022    import com.liferay.portal.kernel.util.GetterUtil;
023    import com.liferay.portal.kernel.util.HttpUtil;
024    import com.liferay.portal.kernel.util.StreamUtil;
025    import com.liferay.portal.kernel.util.StringPool;
026    import com.liferay.portal.kernel.util.Validator;
027    import com.liferay.portal.security.ac.AccessControlThreadLocal;
028    import com.liferay.portal.servlet.JSONServlet;
029    import com.liferay.portal.struts.JSONAction;
030    import com.liferay.portal.upload.UploadServletRequestImpl;
031    import com.liferay.portal.util.PortalUtil;
032    import com.liferay.portal.util.PropsValues;
033    
034    import java.io.IOException;
035    import java.io.InputStream;
036    import java.io.OutputStream;
037    
038    import java.net.URL;
039    
040    import javax.servlet.RequestDispatcher;
041    import javax.servlet.ServletContext;
042    import javax.servlet.ServletException;
043    import javax.servlet.http.HttpServletRequest;
044    import javax.servlet.http.HttpServletResponse;
045    import javax.servlet.http.HttpSession;
046    
047    /**
048     * @author Igor Spasic
049     */
050    public class JSONWebServiceServlet extends JSONServlet {
051    
052            @Override
053            public void destroy() {
054                    _jsonWebServiceServiceAction.destroy();
055    
056                    super.destroy();
057            }
058    
059            @Override
060            public void service(
061                            HttpServletRequest request, HttpServletResponse response)
062                    throws IOException, ServletException {
063    
064                    if (PortalUtil.isMultipartRequest(request)) {
065                            UploadServletRequest uploadServletRequest =
066                                    new UploadServletRequestImpl(request);
067    
068                            request = uploadServletRequest;
069                    }
070    
071                    String path = GetterUtil.getString(request.getPathInfo());
072    
073                    if (!path.equals(StringPool.SLASH) && !path.equals(StringPool.BLANK)) {
074                            super.service(request, response);
075    
076                            return;
077                    }
078    
079                    if (_log.isDebugEnabled()) {
080                            _log.debug("Servlet context " + request.getContextPath());
081                    }
082    
083                    String apiPath = PortalUtil.getPathMain() + "/portal/api/jsonws";
084    
085                    HttpSession session = request.getSession();
086    
087                    ServletContext servletContext = session.getServletContext();
088    
089                    boolean remoteAccess = AccessControlThreadLocal.isRemoteAccess();
090    
091                    try {
092                            AccessControlThreadLocal.setRemoteAccess(true);
093    
094                            String contextPath = PropsValues.PORTAL_CTX;
095    
096                            if (servletContext.getContext(contextPath) != null) {
097                                    if (!contextPath.equals(StringPool.SLASH) &&
098                                            apiPath.startsWith(contextPath)) {
099    
100                                            apiPath = apiPath.substring(contextPath.length());
101                                    }
102    
103                                    RequestDispatcher requestDispatcher =
104                                            request.getRequestDispatcher(apiPath);
105    
106                                    requestDispatcher.forward(request, response);
107                            }
108                            else {
109                                    String requestURI = request.getRequestURI();
110                                    String requestURL = String.valueOf(request.getRequestURL());
111    
112                                    String serverURL = requestURL.substring(
113                                            0, requestURL.length() - requestURI.length());
114    
115                                    String queryString = request.getQueryString();
116    
117                                    if (Validator.isNull(queryString)) {
118                                            queryString = StringPool.BLANK;
119                                    }
120                                    else {
121                                            queryString += StringPool.AMPERSAND;
122                                    }
123    
124                                    String servletContextPath = ContextPathUtil.getContextPath(
125                                            servletContext);
126    
127                                    queryString +=
128                                            "contextPath=" + HttpUtil.encodeURL(servletContextPath);
129    
130                                    apiPath =
131                                            serverURL + apiPath + StringPool.QUESTION + queryString;
132    
133                                    URL url = new URL(apiPath);
134    
135                                    InputStream inputStream = null;
136    
137                                    try {
138                                            inputStream = url.openStream();
139    
140                                            OutputStream outputStream = response.getOutputStream();
141    
142                                            StreamUtil.transfer(inputStream, outputStream);
143                                    }
144                                    finally {
145                                            StreamUtil.cleanUp(inputStream);
146    
147                                            AccessControlThreadLocal.setRemoteAccess(remoteAccess);
148                                    }
149                            }
150                    }
151                    finally {
152                            AccessControlThreadLocal.setRemoteAccess(remoteAccess);
153                    }
154            }
155    
156            @Override
157            protected JSONAction getJSONAction(ServletContext servletContext) {
158                    ClassLoader classLoader = (ClassLoader)servletContext.getAttribute(
159                            PluginContextListener.PLUGIN_CLASS_LOADER);
160    
161                    _jsonWebServiceServiceAction = new JSONWebServiceServiceAction(
162                            ContextPathUtil.getContextPath(servletContext), classLoader);
163    
164                    _jsonWebServiceServiceAction.setServletContext(servletContext);
165    
166                    return _jsonWebServiceServiceAction;
167            }
168    
169            private static Log _log = LogFactoryUtil.getLog(
170                    JSONWebServiceServlet.class);
171    
172            private JSONWebServiceServiceAction _jsonWebServiceServiceAction;
173    
174    }