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.context.Context;
024import org.apache.avalon.framework.context.ContextException;
025import org.apache.avalon.framework.context.Contextualizable;
026import org.apache.avalon.framework.service.ServiceException;
027import org.apache.avalon.framework.service.ServiceManager;
028import org.apache.avalon.framework.service.Serviceable;
029import org.apache.cocoon.components.ContextHelper;
030import org.apache.cocoon.environment.Request;
031import org.apache.commons.lang3.StringUtils;
032
033import org.ametys.plugins.core.ui.resources.css.JSASSResourceURI;
034import org.ametys.web.skin.SkinsManager;
035
036/**
037 * JSASS Resource URI for skins URI
038 */
039public class SkinsJSASSResourceURI implements JSASSResourceURI, Contextualizable, Serviceable
040{
041    private static final Pattern URI_SUPPORTED_PATTERN = Pattern.compile("^skin(?::([^:]+)(?:#([^:]+))?)?://(.*)$");
042    private static final Pattern PATH_SUPPORTED_PATTERN = Pattern.compile("^/skins/([^/]+)/(?!templates/)(.*)$");
043    
044    private Context _context;
045
046    private SkinsManager _skinsManager;
047    
048    public void contextualize(Context context) throws ContextException
049    {
050        _context = context;
051    }
052    
053    public void service(ServiceManager manager) throws ServiceException
054    {
055        _skinsManager = (SkinsManager) manager.lookup(SkinsManager.ROLE);
056    }
057
058    @Override
059    public String resolve(String uri) throws URISyntaxException
060    {
061        Matcher matcher = URI_SUPPORTED_PATTERN.matcher(uri);
062        if (matcher.matches())
063        {
064            String skin = _getSkin(matcher.group(1), matcher.group(2));
065            if (skin == null)
066            {
067                return null;
068            }
069            
070            String path = matcher.group(3);
071            
072            StringBuilder relativeSb = new StringBuilder();
073            relativeSb.append("/skins/");
074            relativeSb.append(skin);
075            relativeSb.append("/");
076            relativeSb.append(path);
077            
078            return relativeSb.toString();
079        }
080        return null;
081    }
082
083    /**
084     * Get the skin
085     * @param skin The skin
086     * @param defaultValue default value if no skin specified and no valid skin found
087     * @return The skin name
088     */
089    protected String _getSkin(String skin, String defaultValue)
090    {
091        String result = skin;
092        if (StringUtils.isEmpty(result))
093        {
094            Request request = ContextHelper.getRequest(_context);
095            result = _skinsManager.getSkinNameFromRequest(request);
096
097            if (StringUtils.isEmpty(result))
098            {
099                result = Optional.ofNullable(defaultValue)
100                    .map(val -> _skinsManager.getSkin(val))
101                    .map(s -> s.getId())
102                    .orElse(null);
103            }
104        }
105
106        return skin;
107    }
108    
109    @Override
110    public String resolvePath(String path)
111    {
112        Matcher matcher = PATH_SUPPORTED_PATTERN.matcher(path);
113        if (matcher.matches())
114        {
115            StringBuilder uri = new StringBuilder();
116            uri.append("skin:");
117            uri.append(matcher.group(1));
118            uri.append("://");
119            uri.append(matcher.group(2));
120            return uri.toString();
121        }
122        return null;
123    }
124
125}