jp.mathes.databaseWiki.dav.DavServlet.java Source code

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Here is the source code for jp.mathes.databaseWiki.dav.DavServlet.java

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/*
   Copyright 2011 Bastian Mathes
    
   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 jp.mathes.databaseWiki.dav;

import java.io.IOException;

import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import jp.mathes.databaseWiki.web.DbwConfiguration;

import org.apache.commons.lang3.StringUtils;

import com.bradmcevoy.http.ApplicationConfig;
import com.bradmcevoy.http.Request;
import com.bradmcevoy.http.Resource;
import com.bradmcevoy.http.ResourceFactory;
import com.bradmcevoy.http.Response;
import com.bradmcevoy.http.ServletHttpManager;
import com.bradmcevoy.http.ServletRequest;
import com.bradmcevoy.http.ServletResponse;

public class DavServlet implements Servlet, ResourceFactory {

    protected ServletHttpManager httpManager;
    private ServletConfig config;
    private String cutoffPath;

    @Override
    public void init(final ServletConfig config) throws ServletException {
        try {
            this.config = config;
            this.cutoffPath = config.getInitParameter("cutoff.path");
            this.httpManager = new ServletHttpManager(this);
            this.httpManager.init(new ApplicationConfig(config), this.httpManager);
        } catch (Throwable ex) {
            throw new RuntimeException(ex);
        }
    }

    @Override
    public void destroy() {
        if (this.httpManager != null) {
            this.httpManager.destroy(this.httpManager);
        }
    }

    @Override
    public void service(final javax.servlet.ServletRequest servletRequest,
            final javax.servlet.ServletResponse servletResponse) throws ServletException, IOException {
        HttpServletRequest req = (HttpServletRequest) servletRequest;
        HttpServletResponse resp = (HttpServletResponse) servletResponse;
        if (req.getHeader("Authorization") != null) {
            resp.setStatus(HttpServletResponse.SC_OK);
            resp.setContentType("application/xhtml+xml");
            try {
                Request request = new ServletRequest(req);
                Response response = new ServletResponse(resp);
                this.httpManager.process(request, response);
            } finally {
                servletResponse.getOutputStream().flush();
                servletResponse.flushBuffer();
            }
        } else {
            resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            resp.setHeader("WWW-Authenticate", "Basic realm=\"databaseWiki\"");
        }
    }

    @Override
    public ServletConfig getServletConfig() {
        return this.config;
    }

    @Override
    public String getServletInfo() {
        return "DavServlet";
    }

    @Override
    public Resource getResource(final String host, final String path) {
        DbwConfiguration.getInstance()
                .davLog(String.format("Entering getResource for host '%s' and path '%s'.", host, path));
        String realPath = path.replace(this.cutoffPath, "");
        realPath = StringUtils.strip(realPath, "/");
        String[] realPathSplit = StringUtils.split(realPath, "/");
        if (realPathSplit.length == 1) {
            return new DbResource(realPathSplit[0]);
        } else if (realPathSplit.length == 2) {
            return new TableResource(realPathSplit[0], realPathSplit[1]);
        } else if (realPathSplit.length == 3) {
            return new DocumentResource(realPathSplit[0], realPathSplit[1], realPathSplit[2]);
        } else {
            throw new RuntimeException(String.format("Invalid path '%s'", path));
        }
    }
}