it.openutils.mgnlspring.UrlFunctions Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of openutils-mgnlspring
There is a newer version: 3.5
/*
 * Copyright 2007 Fabrizio Giustina.
 *
 * Licensed 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.
 */
package it.openutils.mgnlspring;

import info.magnolia.context.MgnlContext;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.commons.lang.StringUtils;


/**
 * @author fgiust
 * @version $Id: UrlFunctions.java 344 2007-06-30 15:31:28Z fgiust $
 */
public final class UrlFunctions
{

    /**
     * Don't instantiate.
     */
    private UrlFunctions()
    {
        // unused
    }

    public static String url(String url)
    {
        return encodeUrl(RewriteVarsThreadLocal.getCurrentPageUrl(), url);
    }

    public static String urlWithDestination(String url, String destination)
    {
        // check RewriteVarsThreadLocal because if not running under magnolia we should not replace urls
        if (RewriteVarsThreadLocal.getCurrentPageUrl() == null || destination == null)
        {
            return url(url);
        }

        return encodeUrl(RewriteVarsThreadLocal.getContextPath() + destination, url);
    }

    /**
     * @param baseUrl
     * @param actionUrl
     * @return
     */
    private static String encodeUrl(final String baseUrl, String actionUrl)
    {
        String contextPath = MgnlContext.getContextPath();
        if (StringUtils.isNotEmpty(contextPath) && actionUrl != null && actionUrl.startsWith(contextPath))
        {
            actionUrl = StringUtils.substringAfter(actionUrl, contextPath);
        }

        if (baseUrl == null)
        {
            if (actionUrl.startsWith("/"))
            {
                return contextPath + actionUrl;
            }

            return actionUrl;
        }

        int paramIndex = baseUrl.indexOf('?');
        String page = baseUrl;
        String params = null;
        if (paramIndex != -1)
        {
            page = StringUtils.substring(baseUrl, 0, paramIndex + 1);
            params = StringUtils.substring(baseUrl, paramIndex + 1);
        }

        StringBuffer outUrl = new StringBuffer();
        outUrl.append(page);
        outUrl.append("?");

        if (params != null)
        {
            outUrl.append(params);
            outUrl.append("&");
        }

        outUrl.append("_action=");
        outUrl.append(StringUtils.replace(actionUrl, "?", "&"));

        String encodedUrl = StringEscapeUtils.escapeXml(outUrl.toString());

        return encodedUrl;
    }

}