/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.etk.common.utils;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
/**
* Created by The eXo Platform SAS
* Author : eXoPlatform
* thanhvucong.78@google.com
* Aug 11, 2011
*/
public class PrivilegedFileHelper
{
/**
* Create FileOutputStream in privileged mode.
*
* @param file
* @return
* @throws FileNotFoundException
*/
public static FileOutputStream fileOutputStream(final File file) throws FileNotFoundException
{
PrivilegedExceptionAction<FileOutputStream> action = new PrivilegedExceptionAction<FileOutputStream>()
{
public FileOutputStream run() throws Exception
{
return new FileOutputStream(file);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create ZipOutputStream in privileged mode.
*
* @param file
* @return
* @throws FileNotFoundException
*/
public static ZipOutputStream zipOutputStream(final File file) throws FileNotFoundException
{
PrivilegedExceptionAction<ZipOutputStream> action = new PrivilegedExceptionAction<ZipOutputStream>()
{
public ZipOutputStream run() throws Exception
{
return new ZipOutputStream(new FileOutputStream(file));
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create FileOutputStream in privileged mode.
*
* @param name
* @return
* @throws FileNotFoundException
*/
public static FileOutputStream fileOutputStream(final String name) throws FileNotFoundException
{
PrivilegedExceptionAction<FileOutputStream> action = new PrivilegedExceptionAction<FileOutputStream>()
{
public FileOutputStream run() throws Exception
{
return new FileOutputStream(name);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create FileOutputStream in privileged mode.
*
* @param file
* @param append
* @return
* @throws FileNotFoundException
*/
public static FileOutputStream fileOutputStream(final File file, final boolean append) throws FileNotFoundException
{
PrivilegedExceptionAction<FileOutputStream> action = new PrivilegedExceptionAction<FileOutputStream>()
{
public FileOutputStream run() throws Exception
{
return new FileOutputStream(file, append);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create FileInputStream in privileged mode.
*
* @param file
* @return
* @throws FileNotFoundException
*/
public static FileInputStream fileInputStream(final File file) throws FileNotFoundException
{
PrivilegedExceptionAction<FileInputStream> action = new PrivilegedExceptionAction<FileInputStream>()
{
public FileInputStream run() throws Exception
{
return new FileInputStream(file);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create FileInputStream in privileged mode.
*
* @param file
* @return
* @throws FileNotFoundException
*/
public static ZipInputStream zipInputStream(final File file) throws FileNotFoundException
{
PrivilegedExceptionAction<ZipInputStream> action = new PrivilegedExceptionAction<ZipInputStream>()
{
public ZipInputStream run() throws Exception
{
return new ZipInputStream(new FileInputStream(file));
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create FileInputStream in privileged mode.
*
* @param name
* @return
* @throws FileNotFoundException
*/
public static FileInputStream fileInputStream(final String name) throws FileNotFoundException
{
PrivilegedExceptionAction<FileInputStream> action = new PrivilegedExceptionAction<FileInputStream>()
{
public FileInputStream run() throws Exception
{
return new FileInputStream(name);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create new file.
*
* @param file
* @return
* @throws IOException
*/
public static boolean createNewFile(final File file) throws IOException
{
PrivilegedExceptionAction<Boolean> action = new PrivilegedExceptionAction<Boolean>()
{
public Boolean run() throws Exception
{
return file.createNewFile();
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IOException)
{
throw (IOException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create temporary file in privileged mode.
*
* @param prefix
* @param suffix
* @param directory
* @return
* @throws IllegalArgumentException
* @throws IOException
*/
public static File createTempFile(final String prefix, final String suffix, final File directory)
throws IllegalArgumentException, IOException
{
PrivilegedExceptionAction<File> action = new PrivilegedExceptionAction<File>()
{
public File run() throws Exception
{
return File.createTempFile(prefix, suffix, directory);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IllegalArgumentException)
{
throw (IllegalArgumentException)cause;
}
else if (cause instanceof IOException)
{
throw (IOException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create teamporary file in privileged mode.
*
*
* @param prefix
* @param suffix
* @return
* @throws IllegalArgumentException
* @throws IOException
*/
public static File createTempFile(final String prefix, final String suffix) throws IllegalArgumentException,
IOException
{
PrivilegedExceptionAction<File> action = new PrivilegedExceptionAction<File>()
{
public File run() throws Exception
{
return File.createTempFile(prefix, suffix);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IllegalArgumentException)
{
throw (IllegalArgumentException)cause;
}
else if (cause instanceof IOException)
{
throw (IOException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Create RandomAccessFile in privileged mode.
*
* @param file
* @param mode
* @return
* @throws IllegalArgumentException
* @throws IOException
*/
public static RandomAccessFile randomAccessFile(final File file, final String mode) throws IllegalArgumentException,
IOException
{
PrivilegedExceptionAction<RandomAccessFile> action = new PrivilegedExceptionAction<RandomAccessFile>()
{
public RandomAccessFile run() throws Exception
{
return new RandomAccessFile(file, mode);
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IllegalArgumentException)
{
throw (IllegalArgumentException)cause;
}
else if (cause instanceof FileNotFoundException)
{
throw (FileNotFoundException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Get file length in privileged mode.
*
* @param file
* @return
*/
public static long length(final File file)
{
PrivilegedAction<Long> action = new PrivilegedAction<Long>()
{
public Long run()
{
return new Long(file.length());
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Requests in privileged mode that the file or directory denoted by this abstract
* pathname be deleted when the virtual machine terminates.
*
* @param file
*/
public static void deleteOnExit(final File file)
{
PrivilegedAction<Void> action = new PrivilegedAction<Void>()
{
public Void run()
{
file.deleteOnExit();
return null;
}
};
SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file absolute path in privileged mode.
*
* @param file
* @return
*/
public static String getAbsolutePath(final File file)
{
PrivilegedAction<String> action = new PrivilegedAction<String>()
{
public String run()
{
return file.getAbsolutePath();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file canonical path in privileged mode.
*
* @param file
* @return
* @throws IOException
*/
public static String getCanonicalPath(final File file) throws IOException
{
PrivilegedExceptionAction<String> action = new PrivilegedExceptionAction<String>()
{
public String run() throws Exception
{
return file.getCanonicalPath();
}
};
try
{
return SecurityHelper.doPrivilegedExceptionAction(action);
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof IOException)
{
throw (IOException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
}
/**
* Delete file in privileged mode.
*
* @param file
* @return
*/
public static boolean delete(final File file)
{
PrivilegedAction<Boolean> action = new PrivilegedAction<Boolean>()
{
public Boolean run()
{
return file.delete();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Tests in privileged mode whether the file denoted by this abstract pathname is a
* directory.
*
* @param file
* @return
*/
public static boolean isDirectory(final File file)
{
PrivilegedAction<Boolean> action = new PrivilegedAction<Boolean>()
{
public Boolean run()
{
return file.isDirectory();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Tests in privileged mode whether the file or directory denoted by this abstract pathname
* exists.
*
* @param file
* @return
*/
public static boolean exists(final File file)
{
PrivilegedAction<Boolean> action = new PrivilegedAction<Boolean>()
{
public Boolean run()
{
return file.exists();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Creates the directory in privileged mode.
*
* @param file
* @return
*/
public static boolean mkdirs(final File file)
{
PrivilegedAction<Boolean> action = new PrivilegedAction<Boolean>()
{
public Boolean run()
{
return file.mkdirs();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Rename File in privileged mode.
*
* @param srcFile
* @param dstfile
* @return
*/
public static boolean renameTo(final File srcFile, final File dstfile)
{
PrivilegedAction<Boolean> action = new PrivilegedAction<Boolean>()
{
public Boolean run()
{
return new Boolean(srcFile.renameTo(dstfile));
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file's list in privileged mode.
*
* @param file
* @return
*/
public static String[] list(final File file)
{
PrivilegedAction<String[]> action = new PrivilegedAction<String[]>()
{
public String[] run()
{
return file.list();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file's list in privileged mode.
*
* @param file
* @return
*/
public static String[] list(final File file, final FilenameFilter filter)
{
PrivilegedAction<String[]> action = new PrivilegedAction<String[]>()
{
public String[] run()
{
return file.list(filter);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file's list in privileged mode.
*
* @param file
* @return
*/
public static File[] listFiles(final File file)
{
PrivilegedAction<File[]> action = new PrivilegedAction<File[]>()
{
public File[] run()
{
return file.listFiles();
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file's list in privileged mode.
*
* @param file
* @return
*/
public static File[] listFiles(final File file, final FilenameFilter filter)
{
PrivilegedAction<File[]> action = new PrivilegedAction<File[]>()
{
public File[] run()
{
return file.listFiles(filter);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
/**
* Get file's list in privileged mode.
*
* @param file
* @return
*/
public static File[] listFiles(final File file, final FileFilter filter)
{
PrivilegedAction<File[]> action = new PrivilegedAction<File[]>()
{
public File[] run()
{
return file.listFiles(filter);
}
};
return SecurityHelper.doPrivilegedAction(action);
}
}