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1   /*
2    * Copyright (C) 2009-2010, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.http.server;
45  
46  import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
47  import static org.eclipse.jgit.http.server.ServletUtils.getRepository;
48  import static org.eclipse.jgit.http.server.ServletUtils.send;
49  
50  import java.io.File;
51  import java.io.FileNotFoundException;
52  import java.io.IOException;
53  
54  import javax.servlet.http.HttpServlet;
55  import javax.servlet.http.HttpServletRequest;
56  import javax.servlet.http.HttpServletResponse;
57  
58  import org.eclipse.jgit.util.HttpSupport;
59  import org.eclipse.jgit.util.IO;
60  
61  /** Sends a small text meta file from the repository. */
62  class TextFileServlet extends HttpServlet {
63  	private static final long serialVersionUID = 1L;
64  
65  	private final String fileName;
66  
67  	TextFileServlet(String name) {
68  		this.fileName = name;
69  	}
70  
71  	/** {@inheritDoc} */
72  	@Override
73  	public void doGet(final HttpServletRequest req,
74  			final HttpServletResponse rsp) throws IOException {
75  		try {
76  			rsp.setContentType(HttpSupport.TEXT_PLAIN);
77  			send(read(req), req, rsp);
78  		} catch (FileNotFoundException noFile) {
79  			rsp.sendError(SC_NOT_FOUND);
80  		}
81  	}
82  
83  	private byte[] read(HttpServletRequest req) throws IOException {
84  		final File gitdir = getRepository(req).getDirectory();
85  		if (gitdir == null)
86  			throw new FileNotFoundException(fileName);
87  		return IO.readFully(new File(gitdir, fileName));
88  	}
89  }