James Moger
2015-11-22 ed552ba47c02779c270ffd62841d6d1048dade70
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/*
 * Copyright 2011 gitblit.com.
 *
 * 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 com.gitblit.servlet;
 
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
 
import java.io.IOException;
import java.util.Enumeration;
 
import com.google.inject.Inject;
import com.google.inject.Singleton;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.eclipse.jgit.http.server.GitFilter;
 
import com.gitblit.git.GitblitReceivePackFactory;
import com.gitblit.git.GitblitUploadPackFactory;
import com.gitblit.git.RepositoryResolver;
import com.gitblit.manager.IGitblit;
 
/**
 * The GitServlet provides http/https access to Git repositories.
 * Access to this servlet is protected by the GitFilter.
 *
 * @author James Moger
 *
 */
@Singleton
public class GitServlet extends HttpServlet {
 
    private static final long serialVersionUID = 1L;
 
    private final GitFilter gitFilter;
 
    @Inject
    public GitServlet(IGitblit gitblit) {
        gitFilter = new GitFilter();
        gitFilter.setRepositoryResolver(new RepositoryResolver<HttpServletRequest>(gitblit));
        gitFilter.setUploadPackFactory(new GitblitUploadPackFactory<HttpServletRequest>(gitblit));
        gitFilter.setReceivePackFactory(new GitblitReceivePackFactory<HttpServletRequest>(gitblit));
    }
 
    @Override
    public void init(final ServletConfig config) throws ServletException {
 
        gitFilter.init(new FilterConfig() {
            @Override
            public String getFilterName() {
                return gitFilter.getClass().getName();
            }
 
            @Override
            public String getInitParameter(String name) {
                return config.getInitParameter(name);
            }
 
            @Override
            public Enumeration<String> getInitParameterNames() {
                return config.getInitParameterNames();
            }
 
            @Override
            public ServletContext getServletContext() {
                return config.getServletContext();
            }
        });
 
        init();
    }
 
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse res)
            throws ServletException, IOException {
        gitFilter.doFilter(req, res, new FilterChain() {
            @Override
            public void doFilter(ServletRequest request,
                    ServletResponse response) throws IOException,
                    ServletException {
                ((HttpServletResponse) response).sendError(SC_NOT_FOUND);
            }
        });
    }
 
    @Override
    public void destroy() {
        gitFilter.destroy();
    }
}