com.bstek.dorado.view.resolver.SkinFileResolver.java Source code

Introduction

Here is the source code for com.bstek.dorado.view.resolver.SkinFileResolver.java

Source

/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.view.resolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.springframework.web.servlet.ModelAndView;

import com.bstek.dorado.core.io.Resource;
import com.bstek.dorado.util.PathUtils;
import com.bstek.dorado.web.DoradoContext;
import com.bstek.dorado.web.WebConfigure;
import com.bstek.dorado.web.resolver.HttpConstants;
import com.bstek.dorado.web.resolver.WebFileResolver;

/**
 * ??
 * 
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since Sep 28, 2008
 */
public class SkinFileResolver extends WebFileResolver {
    private static final String SKIN_URI_PREFIX = "skins/";
    private static final String DEFAULT_SKIN = "default";

    public SkinFileResolver() {
        setUseResourcesCache(true);
        setCheckResourceType(true);
    }

    @Override
    protected Resource[] getResourcesByFileName(DoradoContext context, String resourcePrefix, String fileName,
            String resourceSuffix) throws Exception {
        if (!PathUtils.isSafePath(fileName)) {
            throw new IllegalAccessException("Request [" + context.getRequest().getRequestURI() + "] forbidden.");
        }

        String originFileName = fileName, skin, subPath;
        int i = originFileName.indexOf(SKIN_URI_PREFIX);
        if (i >= 0) {
            subPath = originFileName.substring(i + SKIN_URI_PREFIX.length());
            i = subPath.indexOf(PathUtils.PATH_DELIM);
            if (i > 0) {
                skin = subPath.substring(0, i);
                subPath = subPath.substring(i + 1);

                Resource[] resources;
                String customSkinPath = WebConfigure.getString("view.skin." + skin);
                if (StringUtils.isNotEmpty(customSkinPath)) {
                    resources = super.getResourcesByFileName(context, customSkinPath, subPath, resourceSuffix);
                } else {
                    resources = super.getResourcesByFileName(context, resourcePrefix, originFileName,
                            resourceSuffix);
                }
                if (!skin.equals(DEFAULT_SKIN) && !resources[0].exists()) {
                    subPath = PathUtils.concatPath(SKIN_URI_PREFIX, DEFAULT_SKIN, subPath);
                    resources = super.getResourcesByFileName(context, resourcePrefix, subPath, resourceSuffix);
                }
                return resources;
            }
        }
        return EMPTY_RESOURCES;
    }

    @Override
    protected ModelAndView doHandleRequest(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        response.addHeader(HttpConstants.CACHE_CONTROL,
                HttpConstants.MAX_AGE + WebConfigure.getLong("web.resourceMaxAge", 3600));
        return super.doHandleRequest(request, response);
    }
}