| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| |
| package org.apache.roller.weblogger.ui.rendering.servlets; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.servlet.ServletConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.jsp.JspFactory; |
| import javax.servlet.jsp.PageContext; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.roller.util.RollerConstants; |
| import org.apache.roller.weblogger.WebloggerException; |
| import org.apache.roller.weblogger.business.WebloggerFactory; |
| import org.apache.roller.weblogger.business.themes.ThemeManager; |
| import org.apache.roller.weblogger.config.WebloggerConfig; |
| import org.apache.roller.weblogger.config.WebloggerRuntimeConfig; |
| import org.apache.roller.weblogger.pojos.ThemeTemplate; |
| import org.apache.roller.weblogger.pojos.Weblog; |
| import org.apache.roller.weblogger.pojos.WeblogTheme; |
| import org.apache.roller.weblogger.ui.rendering.Renderer; |
| import org.apache.roller.weblogger.ui.rendering.RendererManager; |
| import org.apache.roller.weblogger.ui.rendering.mobile.MobileDeviceRepository; |
| import org.apache.roller.weblogger.ui.rendering.model.ModelLoader; |
| import org.apache.roller.weblogger.ui.rendering.util.WeblogPageRequest; |
| import org.apache.roller.weblogger.ui.rendering.util.WeblogSearchRequest; |
| import org.apache.roller.weblogger.ui.rendering.util.cache.SiteWideCache; |
| import org.apache.roller.weblogger.ui.rendering.util.cache.WeblogPageCache; |
| import org.apache.roller.weblogger.util.I18nMessages; |
| import org.apache.roller.weblogger.util.cache.CachedContent; |
| |
| /** |
| * Handles search queries for weblogs. |
| */ |
| public class SearchServlet extends HttpServlet { |
| |
| private static final long serialVersionUID = 6246730804167411636L; |
| |
| private static Log log = LogFactory.getLog(SearchServlet.class); |
| |
| // Development theme reloading |
| Boolean themeReload = false; |
| |
| /** |
| * Init method for this servlet |
| */ |
| @Override |
| public void init(ServletConfig servletConfig) throws ServletException { |
| |
| super.init(servletConfig); |
| |
| log.info("Initializing SearchServlet"); |
| |
| // Development theme reloading |
| themeReload = WebloggerConfig.getBooleanProperty("themes.reload.mode"); |
| } |
| |
| /** |
| * Handle GET requests for weblog pages. |
| */ |
| @Override |
| public void doGet(HttpServletRequest request, HttpServletResponse response) |
| throws ServletException, IOException { |
| |
| log.debug("Entering"); |
| |
| Weblog weblog = null; |
| WeblogSearchRequest searchRequest = null; |
| |
| // first off lets parse the incoming request and validate it |
| try { |
| searchRequest = new WeblogSearchRequest(request); |
| |
| // now make sure the specified weblog really exists |
| weblog = WebloggerFactory |
| .getWeblogger() |
| .getWeblogManager() |
| .getWeblogByHandle(searchRequest.getWeblogHandle(), |
| Boolean.TRUE); |
| |
| } catch (Exception e) { |
| // invalid search request format or weblog doesn't exist |
| log.debug("error creating weblog search request", e); |
| response.sendError(HttpServletResponse.SC_NOT_FOUND); |
| return; |
| } |
| |
| // Development only. Reload if theme has been modified |
| if (themeReload |
| && !weblog.getEditorTheme().equals(WeblogTheme.CUSTOM)) { |
| |
| try { |
| ThemeManager manager = WebloggerFactory.getWeblogger() |
| .getThemeManager(); |
| boolean reloaded = manager.reLoadThemeFromDisk(weblog |
| .getEditorTheme()); |
| if (reloaded) { |
| if (WebloggerRuntimeConfig.isSiteWideWeblog(searchRequest |
| .getWeblogHandle())) { |
| SiteWideCache.getInstance().clear(); |
| } else { |
| WeblogPageCache.getInstance().clear(); |
| } |
| I18nMessages.reloadBundle(weblog.getLocaleInstance()); |
| } |
| |
| } catch (Exception ex) { |
| log.error("ERROR - reloading theme " + ex); |
| } |
| } |
| |
| // Get the deviceType from user agent |
| MobileDeviceRepository.DeviceType deviceType = MobileDeviceRepository |
| .getRequestType(request); |
| |
| // for previews we explicitly set the deviceType attribute |
| if (request.getParameter("type") != null) { |
| deviceType = request.getParameter("type").equals("standard") ? MobileDeviceRepository.DeviceType.standard |
| : MobileDeviceRepository.DeviceType.mobile; |
| } |
| |
| // do we need to force a specific locale for the request? |
| if (searchRequest.getLocale() == null && !weblog.isShowAllLangs()) { |
| searchRequest.setLocale(weblog.getLocale()); |
| } |
| |
| // lookup template to use for rendering |
| ThemeTemplate page = null; |
| try { |
| |
| // try looking for a specific search page |
| page = weblog.getTheme().getTemplateByAction( |
| ThemeTemplate.ComponentType.SEARCH); |
| |
| // if not found then fall back on default page |
| if (page == null) { |
| page = weblog.getTheme().getDefaultTemplate(); |
| } |
| |
| // if still null then that's a problem |
| if (page == null) { |
| throw new WebloggerException("Could not lookup default page " |
| + "for weblog " + weblog.getHandle()); |
| } |
| } catch (Exception e) { |
| log.error( |
| "Error getting default page for weblog " |
| + weblog.getHandle(), e); |
| } |
| |
| // set the content type |
| response.setContentType("text/html; charset=utf-8"); |
| |
| // looks like we need to render content |
| Map model = new HashMap(); |
| try { |
| PageContext pageContext = JspFactory.getDefaultFactory() |
| .getPageContext(this, request, response, "", false, RollerConstants.EIGHT_KB_IN_BYTES, |
| true); |
| |
| // populate the rendering model |
| Map initData = new HashMap(); |
| initData.put("request", request); |
| initData.put("pageContext", pageContext); |
| |
| // this is a little hacky, but nothing we can do about it |
| // we need the 'weblogRequest' to be a pageRequest so other models |
| // are properly loaded, which means that searchRequest needs its |
| // own custom initData property aside from the standard |
| // weblogRequest. |
| // possible better approach is make searchRequest extend |
| // pageRequest. |
| WeblogPageRequest pageRequest = new WeblogPageRequest(); |
| pageRequest.setWeblogHandle(searchRequest.getWeblogHandle()); |
| pageRequest.setWeblogCategoryName(searchRequest |
| .getWeblogCategoryName()); |
| pageRequest.setLocale(searchRequest.getLocale()); |
| pageRequest.setDeviceType(searchRequest.getDeviceType()); |
| initData.put("parsedRequest", pageRequest); |
| initData.put("searchRequest", searchRequest); |
| |
| // define url strategy |
| initData.put("urlStrategy", WebloggerFactory.getWeblogger() |
| .getUrlStrategy()); |
| |
| // Load models for pages |
| String searchModels = WebloggerConfig |
| .getProperty("rendering.searchModels"); |
| ModelLoader.loadModels(searchModels, model, initData, true); |
| |
| // Load special models for site-wide blog |
| if (WebloggerRuntimeConfig.isSiteWideWeblog(weblog.getHandle())) { |
| String siteModels = WebloggerConfig |
| .getProperty("rendering.siteModels"); |
| ModelLoader.loadModels(siteModels, model, initData, true); |
| } |
| |
| } catch (WebloggerException ex) { |
| log.error("Error loading model objects for page", ex); |
| |
| if (!response.isCommitted()) { |
| response.reset(); |
| } |
| response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| return; |
| } |
| |
| // lookup Renderer we are going to use |
| Renderer renderer = null; |
| try { |
| log.debug("Looking up renderer"); |
| renderer = RendererManager.getRenderer(page, deviceType); |
| } catch (Exception e) { |
| // nobody wants to render my content :( |
| log.error("Couldn't find renderer for rsd template", e); |
| |
| if (!response.isCommitted()) { |
| response.reset(); |
| } |
| response.sendError(HttpServletResponse.SC_NOT_FOUND); |
| return; |
| } |
| |
| // render content |
| CachedContent rendererOutput = new CachedContent(RollerConstants.FOUR_KB_IN_BYTES); |
| try { |
| log.debug("Doing rendering"); |
| renderer.render(model, rendererOutput.getCachedWriter()); |
| |
| // flush rendered output and close |
| rendererOutput.flush(); |
| rendererOutput.close(); |
| } catch (Exception e) { |
| // bummer, error during rendering |
| log.error("Error during rendering for rsd template", e); |
| |
| if (!response.isCommitted()) { |
| response.reset(); |
| } |
| response.sendError(HttpServletResponse.SC_NOT_FOUND); |
| return; |
| } |
| |
| // post rendering process |
| |
| // flush rendered content to response |
| log.debug("Flushing response output"); |
| response.setContentLength(rendererOutput.getContent().length); |
| response.getOutputStream().write(rendererOutput.getContent()); |
| |
| log.debug("Exiting"); |
| } |
| |
| } |