Mercurial Hosting > luan
view src/org/eclipse/jetty/util/resource/JarResource.java @ 920:3268ddf919d4
remove AsyncContinuation.isAsyncStarted()
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Sun, 09 Oct 2016 03:51:31 -0600 |
parents | 8e9db0bbf4f9 |
children |
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// // ======================================================================== // Copyright (c) 1995-2014 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.util.resource; import java.io.File; import java.io.FileOutputStream; import java.io.FilterInputStream; import java.io.IOException; import java.io.InputStream; import java.net.JarURLConnection; import java.net.URL; import java.util.jar.JarEntry; import java.util.jar.JarInputStream; import java.util.jar.Manifest; import org.eclipse.jetty.util.IO; import org.eclipse.jetty.util.URIUtil; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /* ------------------------------------------------------------ */ public class JarResource extends URLResource { private static final Logger LOG = LoggerFactory.getLogger(JarResource.class); protected JarURLConnection _jarConnection; /* -------------------------------------------------------- */ JarResource(URL url) { super(url,null); } /* ------------------------------------------------------------ */ JarResource(URL url, boolean useCaches) { super(url, null, useCaches); } /* ------------------------------------------------------------ */ @Override public synchronized void release() { _jarConnection=null; super.release(); } /* ------------------------------------------------------------ */ @Override protected synchronized boolean checkConnection() { super.checkConnection(); try { if (_jarConnection!=_connection) newConnection(); } catch(IOException e) { LOG.trace("",e); _jarConnection=null; } return _jarConnection!=null; } /* ------------------------------------------------------------ */ /** * @throws IOException Sub-classes of <code>JarResource</code> may throw an IOException (or subclass) */ protected void newConnection() throws IOException { _jarConnection=(JarURLConnection)_connection; } /* ------------------------------------------------------------ */ /** * Returns true if the respresenetd resource exists. */ @Override public boolean exists() { if (_urlString.endsWith("!/")) return checkConnection(); else return super.exists(); } /* ------------------------------------------------------------ */ @Override public File getFile() throws IOException { return null; } /* ------------------------------------------------------------ */ @Override public InputStream getInputStream() throws java.io.IOException { checkConnection(); if (!_urlString.endsWith("!/")) return new FilterInputStream(super.getInputStream()) { @Override public void close() throws IOException {this.in=IO.getClosedStream();} }; URL url = new URL(_urlString.substring(4,_urlString.length()-2)); InputStream is = url.openStream(); return is; } /* ------------------------------------------------------------ */ @Override public void copyTo(File directory) throws IOException { if (!exists()) return; if(LOG.isDebugEnabled()) LOG.debug("Extract "+this+" to "+directory); 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)); String subEntryName = (endOfJarUrl+2 < urlString.length() ? urlString.substring(endOfJarUrl + 2) : null); boolean subEntryIsDir = (subEntryName != null && subEntryName.endsWith("/")?true:false); if (LOG.isDebugEnabled()) LOG.debug("Extracting entry = "+subEntryName+" from jar "+jarFileURL); InputStream is = jarFileURL.openConnection().getInputStream(); JarInputStream jin = new JarInputStream(is); JarEntry entry; boolean shouldExtract; while((entry=jin.getNextJarEntry())!=null) { String entryName = entry.getName(); if ((subEntryName != null) && (entryName.startsWith(subEntryName))) { // is the subentry really a dir? if (!subEntryIsDir && subEntryName.length()+1==entryName.length() && entryName.endsWith("/")) subEntryIsDir=true; //if there is a particular subEntry that we are looking for, only //extract it. if (subEntryIsDir) { //if it is a subdirectory we are looking for, then we //are looking to extract its contents into the target //directory. Remove the name of the subdirectory so //that we don't wind up creating it too. entryName = entryName.substring(subEntryName.length()); if (!entryName.equals("")) { //the entry is shouldExtract = true; } else shouldExtract = false; } else shouldExtract = true; } else if ((subEntryName != null) && (!entryName.startsWith(subEntryName))) { //there is a particular entry we are looking for, and this one //isn't it shouldExtract = false; } else { //we are extracting everything shouldExtract = true; } if (!shouldExtract) { if (LOG.isDebugEnabled()) LOG.debug("Skipping entry: "+entryName); continue; } String dotCheck = entryName.replace('\\', '/'); dotCheck = URIUtil.canonicalPath(dotCheck); if (dotCheck == null) { if (LOG.isDebugEnabled()) LOG.debug("Invalid entry: "+entryName); continue; } File file=new File(directory,entryName); if (entry.isDirectory()) { // Make directory if (!file.exists()) file.mkdirs(); } else { // make directory (some jars don't list dirs) File dir = new File(file.getParent()); if (!dir.exists()) dir.mkdirs(); // Make file FileOutputStream fout = null; try { fout = new FileOutputStream(file); IO.copy(jin,fout); } finally { IO.close(fout); } // touch the file. if (entry.getTime()>=0) file.setLastModified(entry.getTime()); } } if ((subEntryName == null) || (subEntryName != null && subEntryName.equalsIgnoreCase("META-INF/MANIFEST.MF"))) { Manifest manifest = jin.getManifest(); if (manifest != null) { File metaInf = new File (directory, "META-INF"); metaInf.mkdir(); File f = new File(metaInf, "MANIFEST.MF"); FileOutputStream fout = new FileOutputStream(f); manifest.write(fout); fout.close(); } } IO.close(jin); } public static Resource newJarResource(Resource resource) throws IOException { if (resource instanceof JarResource) return resource; return Resource.newResource("jar:" + resource + "!/"); } }