org.opencms.i18n.CmsSingleTreeLocaleHandler 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.i18n;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsProject;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.CmsUser;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import org.opencms.site.CmsSite;
import org.opencms.util.CmsStringUtil;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
/**
* Advanced locale handler allowing single tree localization.
*/
public class CmsSingleTreeLocaleHandler extends CmsDefaultLocaleHandler {
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsSingleTreeLocaleHandler.class);
/** A cms object that has been initialized with Admin permissions. */
private CmsObject m_adminCmsObject;
/**
* Reads the locale from the first path element.
*
* @param sitePath the site path with the locale prefix
*
* @return the locale or null if no matching locale was found
*/
public static Locale getLocaleFromPath(String sitePath) {
Locale result = null;
if (sitePath.indexOf("/") == 0) {
sitePath = sitePath.substring(1);
}
if (sitePath.length() > 1) {
String localePrefix;
if (!sitePath.contains("/")) {
// this may be the case for paths pointing to the root folder of a site
// check for parameters
int separator = -1;
int param = sitePath.indexOf("?");
int hash = sitePath.indexOf("#");
if (param >= 0) {
if (hash != 0) {
separator = param < hash ? param : hash;
} else {
separator = param;
}
} else {
separator = hash;
}
if (separator >= 0) {
localePrefix = sitePath.substring(0, separator);
} else {
localePrefix = sitePath;
}
} else {
localePrefix = sitePath.substring(0, sitePath.indexOf("/"));
}
Locale locale = CmsLocaleManager.getLocale(localePrefix);
if (localePrefix.equals(locale.toString())
&& OpenCms.getLocaleManager().getAvailableLocales().contains(locale)) {
result = locale;
}
}
return result;
}
/**
* @see org.opencms.i18n.CmsDefaultLocaleHandler#getI18nInfo(javax.servlet.http.HttpServletRequest, org.opencms.file.CmsUser, org.opencms.file.CmsProject, java.lang.String)
*/
@Override
public CmsI18nInfo getI18nInfo(HttpServletRequest req, CmsUser user, CmsProject project, String resourceName) {
CmsSite site = OpenCms.getSiteManager().getSiteForRootPath(resourceName);
if ((site != null) && CmsSite.LocalizationMode.singleTree.equals(site.getLocalizationMode())) {
String sitePath = resourceName.substring(site.getSiteRoot().length());
if (sitePath.startsWith("/")) {
sitePath = sitePath.substring(1);
}
Locale locale = getLocaleFromPath(sitePath);
if (locale == null) {
return super.getI18nInfo(req, user, project, resourceName);
}
sitePath = sitePath.substring(locale.toString().length());
String encoding = null;
resourceName = CmsStringUtil.joinPaths(site.getSiteRoot(), sitePath);
CmsObject adminCms = null;
try {
// create a copy of the Admin context to avoid concurrent modification
adminCms = OpenCms.initCmsObject(m_adminCmsObject);
} catch (CmsException e) {
// unable to copy Admin context - this should never happen
}
if (adminCms != null) {
// must switch project id in stored Admin context to match current project
adminCms.getRequestContext().setCurrentProject(project);
adminCms.getRequestContext().setUri(resourceName);
// now get default m_locale names
CmsResource res = null;
try {
res = adminCms.readResource(resourceName, CmsResourceFilter.IGNORE_EXPIRATION);
} catch (CmsException e) {
// unable to read the resource - maybe we need the init handlers
}
if (res == null) {
try {
res = OpenCms.initResource(adminCms, resourceName, req, null);
} catch (CmsException e) {
// ignore
}
}
if (res != null) {
// get the encoding
try {
encoding = adminCms.readPropertyObject(
res,
CmsPropertyDefinition.PROPERTY_CONTENT_ENCODING,
true).getValue(OpenCms.getSystemInfo().getDefaultEncoding());
} catch (CmsException e) {
if (LOG.isInfoEnabled()) {
LOG.info(
Messages.get().getBundle().key(Messages.ERR_READ_ENCODING_PROP_1, resourceName),
e);
}
}
}
if (encoding == null) {
// no special encoding could be determined
encoding = OpenCms.getSystemInfo().getDefaultEncoding();
}
return new CmsI18nInfo(locale, encoding);
}
}
return super.getI18nInfo(req, user, project, resourceName);
}
/**
* @see org.opencms.i18n.I_CmsLocaleHandler#initHandler(org.opencms.file.CmsObject)
*/
@Override
public void initHandler(CmsObject cms) {
m_adminCmsObject = cms;
super.initHandler(cms);
}
}