Package net.i2p.util

Class SecureFileOutputStream

java.lang.Object

java.io.OutputStream

java.io.FileOutputStream

net.i2p.util.SecureFileOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

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

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
(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, getChannel, getFD, write, write, write

Methods inherited from class java.io.OutputStream

flush, nullOutputStream

Methods inherited from class java.lang.Object

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

Constructor Details

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 Details

canSetPerms

static boolean canSetPerms()

Since:

0.8.2

setPerms

public static void setPerms(File f)

Tries to set the permissions to 600, ignores errors