/* ==================================================================== | |
Licensed to the Apache Software Foundation (ASF) under one or more | |
contributor license agreements. See the NOTICE file distributed with | |
this work for additional information regarding copyright ownership. | |
The ASF licenses this file to You 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 org.apache.poi.poifs.dev; | |
import org.apache.poi.poifs.filesystem.*; | |
import java.io.FileInputStream; | |
import java.io.File; | |
import java.io.IOException; | |
import java.io.FileOutputStream; | |
import java.util.Iterator; | |
/** | |
* | |
* Dump internal structure of a OLE2 file into file system | |
* | |
* @author Yegor Kozlov | |
*/ | |
public class POIFSDump { | |
public static void main(String[] args) throws Exception { | |
for (int i = 0; i < args.length; i++) { | |
System.out.println("Dumping " + args[i]); | |
FileInputStream is = new FileInputStream(args[i]); | |
POIFSFileSystem fs = new POIFSFileSystem(is); | |
is.close(); | |
DirectoryEntry root = fs.getRoot(); | |
File file = new File(root.getName()); | |
file.mkdir(); | |
dump(root, file); | |
} | |
} | |
public static void dump(DirectoryEntry root, File parent) throws IOException { | |
for(Iterator it = root.getEntries(); it.hasNext();){ | |
Entry entry = (Entry)it.next(); | |
if(entry instanceof DocumentNode){ | |
DocumentNode node = (DocumentNode)entry; | |
DocumentInputStream is = new DocumentInputStream(node); | |
byte[] bytes = new byte[node.getSize()]; | |
is.read(bytes); | |
is.close(); | |
FileOutputStream out = new FileOutputStream(new File(parent, node.getName().trim())); | |
out.write(bytes); | |
out.close(); | |
} else if (entry instanceof DirectoryEntry){ | |
DirectoryEntry dir = (DirectoryEntry)entry; | |
File file = new File(parent, entry.getName()); | |
file.mkdir(); | |
dump(dir, file); | |
} else { | |
System.err.println("Skipping unsupported POIFS entry: " + entry); | |
} | |
} | |
} | |
} |