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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.maven.plugin;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;
import org.codehaus.plexus.util.SelectorUtils;
import org.eclipse.jetty.util.IO;
import org.eclipse.jetty.util.URIUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.JarResource;
/**
* SelectiveJarResource
*
* Selectively copies resources from a jar file based on includes/excludes.
*
*/
public class SelectiveJarResource extends JarResource
{
private static final Logger LOG = Log.getLogger(SelectiveJarResource.class);
public static final List<String> DEFAULT_INCLUDES = Arrays.asList(new String[]{"**"});// No includes supplied, so set it to 'matches all'
public static final List<String> DEFAULT_EXCLUDES = Collections.emptyList(); //No includes, set to no exclusions
List<String> _includes = null;
List<String> _excludes = null;
boolean _caseSensitive = false;
/**
* @param url
*/
public SelectiveJarResource(URL url)
{
super(url);
}
/**
* @param url
* @param useCaches
*/
public SelectiveJarResource(URL url, boolean useCaches)
{
super(url, useCaches);
}
public void setCaseSensitive (boolean caseSensitive)
{
_caseSensitive = caseSensitive;
}
public void setIncludes (List<String> patterns)
{
_includes = patterns;
}
public void setExcludes (List<String> patterns)
{
_excludes = patterns;
}
protected boolean isIncluded (String name)
{
for (String include:_includes)
{
if (SelectorUtils.matchPath(include, name, _caseSensitive))
{
return true;
}
}
return false;
}
protected boolean isExcluded (String name)
{
for (String exclude:_excludes)
{
if (SelectorUtils.matchPath (exclude, name, _caseSensitive))
{
return true;
}
}
return false;
}
/**
* @see org.eclipse.jetty.util.resource.JarResource#copyTo(java.io.File)
*/
@Override
public void copyTo(File directory) throws IOException
{
if (_includes == null)
_includes = DEFAULT_INCLUDES;
if (_excludes == null)
_excludes = DEFAULT_EXCLUDES;
//Copy contents of the jar file to the given directory,
//using the includes and excludes patterns to control which
//parts of the jar file are copied
if (!exists())
return;
String urlString = this.getURL().toExternalForm().trim();
int endOfJarUrl = urlString.indexOf("!/");
int startOfJarUrl = (endOfJarUrl >= 0?4:0);
if (endOfJarUrl < 0)
throw new IOException("Not a valid jar url: "+urlString);
URL jarFileURL = new URL(urlString.substring(startOfJarUrl, endOfJarUrl));
try (InputStream is = jarFileURL.openConnection().getInputStream();
JarInputStream jin = new JarInputStream(is))
{
JarEntry entry;
while((entry=jin.getNextJarEntry())!=null)
{
String entryName = entry.getName();
LOG.debug("Looking at "+entryName);
String dotCheck = entryName.replace('\\', '/');
dotCheck = URIUtil.canonicalPath(dotCheck);
if (dotCheck == null)
{
LOG.info("Invalid entry: "+entryName);
continue;
}
File file=new File(directory,entryName);
if (entry.isDirectory())
{
if (isIncluded(entryName))
{
if (!isExcluded(entryName))
{
// Make directory
if (!file.exists())
file.mkdirs();
}
else
LOG.debug("{} dir is excluded", entryName);
}
else
LOG.debug("{} dir is NOT included", entryName);
}
else
{
//entry is a file, is it included?
if (isIncluded(entryName))
{
if (!isExcluded(entryName))
{
// make directory (some jars don't list dirs)
File dir = new File(file.getParent());
if (!dir.exists())
dir.mkdirs();
// Make file
try (OutputStream fout = new FileOutputStream(file))
{
IO.copy(jin,fout);
}
// touch the file.
if (entry.getTime()>=0)
file.setLastModified(entry.getTime());
}
else
LOG.debug("{} file is excluded", entryName);
}
else
LOG.debug("{} file is NOT included", entryName);
}
}
Manifest manifest = jin.getManifest();
if (manifest != null)
{
if (isIncluded("META-INF") && !isExcluded("META-INF"))
{
File metaInf = new File (directory, "META-INF");
metaInf.mkdir();
File f = new File(metaInf, "MANIFEST.MF");
try (OutputStream fout = new FileOutputStream(f))
{
manifest.write(fout);
}
}
}
}
}
}
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