/* | |
* Copyright 2014 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 java.io.ByteArrayOutputStream; | |
import java.io.File; | |
import java.io.FileInputStream; | |
import java.io.IOException; | |
import java.io.InputStream; | |
import java.io.OutputStream; | |
import com.google.inject.Inject; | |
import com.google.inject.Singleton; | |
import javax.servlet.ServletException; | |
import javax.servlet.http.HttpServlet; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
import org.apache.commons.compress.archivers.tar.TarArchiveEntry; | |
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream; | |
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; | |
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream; | |
import org.apache.commons.compress.compressors.CompressorOutputStream; | |
import org.apache.commons.compress.compressors.CompressorStreamFactory; | |
import org.eclipse.jgit.lib.FileMode; | |
import com.gitblit.manager.IRuntimeManager; | |
/** | |
* Handles requests for the Barnum pt (patchset tool). | |
* | |
* The user-agent determines the content and compression format. | |
* | |
* @author James Moger | |
* | |
*/ | |
@Singleton | |
public class PtServlet extends HttpServlet { | |
private static final long serialVersionUID = 1L; | |
private static final long lastModified = System.currentTimeMillis(); | |
private IRuntimeManager runtimeManager; | |
@Inject | |
public PtServlet(IRuntimeManager runtimeManager) { | |
this.runtimeManager = runtimeManager; | |
} | |
@Override | |
protected long getLastModified(HttpServletRequest req) { | |
File file = runtimeManager.getFileOrFolder("tickets.pt", "${baseFolder}/pt.py"); | |
if (file.exists()) { | |
return Math.max(lastModified, file.lastModified()); | |
} else { | |
return lastModified; | |
} | |
} | |
@Override | |
protected void doGet(HttpServletRequest request, HttpServletResponse response) | |
throws ServletException, IOException { | |
try { | |
response.setContentType("application/octet-stream"); | |
response.setDateHeader("Last-Modified", lastModified); | |
response.setHeader("Cache-Control", "none"); | |
response.setHeader("Pragma", "no-cache"); | |
response.setDateHeader("Expires", 0); | |
boolean windows = false; | |
try { | |
String useragent = request.getHeader("user-agent").toString(); | |
windows = useragent.toLowerCase().contains("windows"); | |
} catch (Exception e) { | |
} | |
byte[] pyBytes; | |
File file = runtimeManager.getFileOrFolder("tickets.pt", "${baseFolder}/pt.py"); | |
if (file.exists()) { | |
// custom script | |
pyBytes = readAll(new FileInputStream(file)); | |
} else { | |
// default script | |
pyBytes = readAll(getClass().getResourceAsStream("/pt.py")); | |
} | |
if (windows) { | |
// windows: download zip file with pt.py and pt.cmd | |
response.setHeader("Content-Disposition", "attachment; filename=\"pt.zip\""); | |
OutputStream os = response.getOutputStream(); | |
ZipArchiveOutputStream zos = new ZipArchiveOutputStream(os); | |
// add the Python script | |
ZipArchiveEntry pyEntry = new ZipArchiveEntry("pt.py"); | |
pyEntry.setSize(pyBytes.length); | |
pyEntry.setUnixMode(FileMode.EXECUTABLE_FILE.getBits()); | |
pyEntry.setTime(lastModified); | |
zos.putArchiveEntry(pyEntry); | |
zos.write(pyBytes); | |
zos.closeArchiveEntry(); | |
// add a Python launch cmd file | |
byte [] cmdBytes = readAll(getClass().getResourceAsStream("/pt.cmd")); | |
ZipArchiveEntry cmdEntry = new ZipArchiveEntry("pt.cmd"); | |
cmdEntry.setSize(cmdBytes.length); | |
cmdEntry.setUnixMode(FileMode.REGULAR_FILE.getBits()); | |
cmdEntry.setTime(lastModified); | |
zos.putArchiveEntry(cmdEntry); | |
zos.write(cmdBytes); | |
zos.closeArchiveEntry(); | |
// add a brief readme | |
byte [] txtBytes = readAll(getClass().getResourceAsStream("/pt.txt")); | |
ZipArchiveEntry txtEntry = new ZipArchiveEntry("readme.txt"); | |
txtEntry.setSize(txtBytes.length); | |
txtEntry.setUnixMode(FileMode.REGULAR_FILE.getBits()); | |
txtEntry.setTime(lastModified); | |
zos.putArchiveEntry(txtEntry); | |
zos.write(txtBytes); | |
zos.closeArchiveEntry(); | |
// cleanup | |
zos.finish(); | |
zos.close(); | |
os.flush(); | |
} else { | |
// unix: download a tar.gz file with pt.py set with execute permissions | |
response.setHeader("Content-Disposition", "attachment; filename=\"pt.tar.gz\""); | |
OutputStream os = response.getOutputStream(); | |
CompressorOutputStream cos = new CompressorStreamFactory().createCompressorOutputStream(CompressorStreamFactory.GZIP, os); | |
TarArchiveOutputStream tos = new TarArchiveOutputStream(cos); | |
tos.setAddPaxHeadersForNonAsciiNames(true); | |
tos.setLongFileMode(TarArchiveOutputStream.LONGFILE_POSIX); | |
// add the Python script | |
TarArchiveEntry pyEntry = new TarArchiveEntry("pt"); | |
pyEntry.setMode(FileMode.EXECUTABLE_FILE.getBits()); | |
pyEntry.setModTime(lastModified); | |
pyEntry.setSize(pyBytes.length); | |
tos.putArchiveEntry(pyEntry); | |
tos.write(pyBytes); | |
tos.closeArchiveEntry(); | |
// add a brief readme | |
byte [] txtBytes = readAll(getClass().getResourceAsStream("/pt.txt")); | |
TarArchiveEntry txtEntry = new TarArchiveEntry("README"); | |
txtEntry.setMode(FileMode.REGULAR_FILE.getBits()); | |
txtEntry.setModTime(lastModified); | |
txtEntry.setSize(txtBytes.length); | |
tos.putArchiveEntry(txtEntry); | |
tos.write(txtBytes); | |
tos.closeArchiveEntry(); | |
// cleanup | |
tos.finish(); | |
tos.close(); | |
cos.close(); | |
os.flush(); | |
} | |
} catch (Exception e) { | |
e.printStackTrace(); | |
} | |
} | |
byte [] readAll(InputStream is) { | |
ByteArrayOutputStream os = new ByteArrayOutputStream(); | |
try { | |
byte [] buffer = new byte[4096]; | |
int len = 0; | |
while ((len = is.read(buffer)) > -1) { | |
os.write(buffer, 0, len); | |
} | |
return os.toByteArray(); | |
} catch (IOException e) { | |
e.printStackTrace(); | |
} finally { | |
try { | |
os.close(); | |
is.close(); | |
} catch (Exception e) { | |
// ignore | |
} | |
} | |
return new byte[0]; | |
} | |
} |