org.opencms.main.OpenCmsSpellcheckHandler Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
*
* 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.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.main;
import org.opencms.file.CmsObject;
import org.opencms.search.solr.spellchecking.CmsSolrSpellchecker;
import org.opencms.site.CmsSite;
import org.opencms.util.CmsStringUtil;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
/**
* Handles spell check requests.
*/
public class OpenCmsSpellcheckHandler extends HttpServlet implements I_CmsRequestHandler {
/** A constant for the optional 'baseUri' parameter. */
public static final String PARAM_BASE_URI = "baseUri";
/** A constant for the HTTP 'referer'. */
protected static final String HEADER_REFERER_KEY = "referer";
/** The spell check handler name. */
private static final String HANDLER_NAME = "SpellcheckDictionary";
/** The handler names used by this request handler. */
private static final String[] HANDLER_NAMES = new String[] {HANDLER_NAME};
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(OpenCmsSpellcheckHandler.class);
/** The serial version id. */
private static final long serialVersionUID = -6028091947126209813L;
/**
* Returns the path to the spell check handler.
*
* @return the path to the spell check handler
*/
public static String getSpellcheckHandlerPath() {
return OpenCmsServlet.HANDLE_PATH + HANDLER_NAME;
}
/**
* Checks if the spell check request handler is configured.
*
* @return true if the spell check request handler is configured
*/
public static boolean isSpellcheckingEnabled() {
return OpenCmsCore.getInstance().getRequestHandler(HANDLER_NAME) != null;
}
/**
* @see org.opencms.main.I_CmsRequestHandler#getHandlerNames()
*/
public String[] getHandlerNames() {
return HANDLER_NAMES;
}
/**
* @see org.opencms.main.I_CmsRequestHandler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.String)
*/
public void handle(HttpServletRequest req, HttpServletResponse res, String name) throws IOException {
CmsObject cms;
try {
cms = getCmsObject(req);
CmsSolrSpellchecker dict = OpenCms.getSearchManager().getSolrDictionary();
if (dict != null) {
dict.getSpellcheckingResult(res, req, cms);
}
} catch (CmsException e) {
LOG.error(e.getLocalizedMessage(), e);
}
}
/**
* Returns the CMS object.
*
* @param req the request
*
* @return the CMS object
*
* @throws CmsException if something goes wrong
*/
protected CmsObject getCmsObject(HttpServletRequest req) throws CmsException {
CmsObject cms = OpenCmsCore.getInstance().initCmsObjectFromSession(req);
// use the guest user as fall back
if (cms == null) {
cms = OpenCmsCore.getInstance().initCmsObject(OpenCms.getDefaultUsers().getUserGuest());
String siteRoot = OpenCmsCore.getInstance().getSiteManager().matchRequest(req).getSiteRoot();
cms.getRequestContext().setSiteRoot(siteRoot);
}
String baseUri = getBaseUri(req, cms);
if (baseUri != null) {
cms.getRequestContext().setUri(baseUri);
}
return cms;
}
/**
* Returns the base URI.
*
* @param req the servlet request
* @param cms the CmsObject
*
* @return the base URI
*/
private String getBaseUri(HttpServletRequest req, CmsObject cms) {
String baseUri = req.getParameter(PARAM_BASE_URI);
if (CmsStringUtil.isEmptyOrWhitespaceOnly(baseUri)) {
String referer = req.getHeader(HEADER_REFERER_KEY);
CmsSite site = OpenCms.getSiteManager().getSiteForSiteRoot(cms.getRequestContext().getSiteRoot());
if (site != null) {
String prefix = site.getServerPrefix(cms, "/") + OpenCms.getStaticExportManager().getVfsPrefix();
if ((referer != null) && referer.startsWith(prefix)) {
baseUri = referer.substring(prefix.length());
}
}
}
return baseUri;
}
}