net.i2p.util
Class SecureFileOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FileOutputStream
          net.i2p.util.SecureFileOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class SecureFileOutputStream
extends FileOutputStream

Same as FileOutputStream but sets the file mode so it can only be read and written by the owner only (i.e. 600 on linux)

Since:

0.8.1

Author:

zzz

Constructor Summary

SecureFileOutputStream(File file)
Sets output file to mode 600

SecureFileOutputStream(File file, boolean append)
Sets output file to mode 600 only if append = false (otherwise it is presumed to be 600 already)

SecureFileOutputStream(String file)
Sets output file to mode 600

SecureFileOutputStream(String file, boolean append)
Sets output file to mode 600 whether append = true or false

Method Summary

(package private) static boolean	canSetPerms()
static void	setPerms(File f) Tries to set the permissions to 600, ignores errors

Methods inherited from class java.io.FileOutputStream

close, finalize, getChannel, getFD, write, write, write

Methods inherited from class java.io.OutputStream

flush

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SecureFileOutputStream

public SecureFileOutputStream(String file)
                       throws FileNotFoundException

Sets output file to mode 600

Throws:

FileNotFoundException

SecureFileOutputStream

public SecureFileOutputStream(String file,
                              boolean append)
                       throws FileNotFoundException

Sets output file to mode 600 whether append = true or false

Throws:

FileNotFoundException

SecureFileOutputStream

public SecureFileOutputStream(File file)
                       throws FileNotFoundException

Sets output file to mode 600

Throws:

FileNotFoundException

SecureFileOutputStream

public SecureFileOutputStream(File file,
                              boolean append)
                       throws FileNotFoundException

Sets output file to mode 600 only if append = false (otherwise it is presumed to be 600 already)

Throws:

FileNotFoundException

Method Detail

canSetPerms

static boolean canSetPerms()

Since:

0.8.2

setPerms

public static void setPerms(File f)

Tries to set the permissions to 600, ignores errors