001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.web.minimize;
017
018import java.net.URISyntaxException;
019import java.util.Optional;
020import java.util.regex.Matcher;
021import java.util.regex.Pattern;
022
023import org.apache.avalon.framework.service.ServiceException;
024import org.apache.avalon.framework.service.ServiceManager;
025import org.apache.avalon.framework.service.Serviceable;
026import org.apache.commons.lang3.StringUtils;
027
028import org.ametys.plugins.core.ui.resources.css.JSASSResourceURI;
029import org.ametys.web.skin.SkinsManager;
030
031/**
032 * JSASS Resource URI for skins URI
033 */
034public class SkinsJSASSResourceURI implements JSASSResourceURI, Serviceable
035{
036    private static final Pattern URI_SUPPORTED_PATTERN = Pattern.compile("^skin(?::([^:]+)(?:#([^:]+))?)?://(.*)$");
037    private static final Pattern PATH_SUPPORTED_PATTERN = Pattern.compile("^/skins/([^/]+)/(?!templates/)(.*)$");
038    
039    private SkinsManager _skinsManager;
040    
041    public void service(ServiceManager manager) throws ServiceException
042    {
043        _skinsManager = (SkinsManager) manager.lookup(SkinsManager.ROLE);
044    }
045
046    @Override
047    public String resolve(String uri) throws URISyntaxException
048    {
049        Matcher matcher = URI_SUPPORTED_PATTERN.matcher(uri);
050        if (matcher.matches())
051        {
052            String skin = _getSkin(matcher.group(1), matcher.group(2));
053            if (skin == null)
054            {
055                return null;
056            }
057            
058            String path = matcher.group(3);
059            
060            StringBuilder relativeSb = new StringBuilder();
061            relativeSb.append("/skins/");
062            relativeSb.append(skin);
063            relativeSb.append("/");
064            relativeSb.append(path);
065            
066            return relativeSb.toString();
067        }
068        return null;
069    }
070
071    /**
072     * Get the skin
073     * @param skin The skin
074     * @param defaultValue default value if no skin specified and no valid skin found
075     * @return The skin name
076     */
077    protected String _getSkin(String skin, String defaultValue)
078    {
079        String result = skin;
080        if (StringUtils.isEmpty(result))
081        {
082            result = _skinsManager.getSkinNameFromRequest();
083
084            if (StringUtils.isEmpty(result))
085            {
086                result = Optional.ofNullable(defaultValue)
087                    .map(val -> _skinsManager.getSkin(val))
088                    .map(s -> s.getId())
089                    .orElse(null);
090            }
091        }
092
093        return skin;
094    }
095    
096    @Override
097    public String resolvePath(String path)
098    {
099        Matcher matcher = PATH_SUPPORTED_PATTERN.matcher(path);
100        if (matcher.matches())
101        {
102            StringBuilder uri = new StringBuilder();
103            uri.append("skin:");
104            uri.append(matcher.group(1));
105            uri.append("://");
106            uri.append(matcher.group(2));
107            return uri.toString();
108        }
109        return null;
110    }
111
112}