com.ibm.tivoli.nm.collectors.framework.utils

Class RemoveDoctypeInputStream

java.lang.Object

java.io.InputStream

java.io.FileInputStream

com.ibm.tivoli.nm.collectors.framework.utils.RemoveDoctypeInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class RemoveDoctypeInputStream
extends java.io.FileInputStream

Wrapper around FileInputStream. It assumes that the given file is an XML document. Its various read() methods work the same as the corresponding methods in FileInputStream, except that they strip out the <!DOCTYPE ... > tag. To properly secure the XML parser against XXE (XML eXternal Entity) injection, we have to disallow DTD declarations. Doing it this way allows us to parse the XML without requiring the customer to edit it or reconfigure whatever program generates it.

Constructor Summary

Constructors

Constructor and Description
RemoveDoctypeInputStream(java.lang.String file) Constructor

Method Summary

Modifier and Type	Method and Description
void	mark(int limit)
boolean	markSupported()
int	read() Implements InputStream.read(), but strips out the DOCTYPE tag from the input.
int	read(byte[] b) Implements InputStream.read(byte[]), but strips out the DOCTYPE tag from the input.
int	read(byte[] b, int offset, int len) Implements InputStream.read(byte[], int, int), but strips out the DOCTYPE tag from the input.
void	reset()

Methods inherited from class java.io.FileInputStream

available, close, finalize, getChannel, getFD, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

RemoveDoctypeInputStream

public RemoveDoctypeInputStream(java.lang.String file)
                         throws java.io.IOException

Constructor

Parameters:

file -

Throws:

java.io.IOException

Method Detail

read

public int read()
         throws java.io.IOException

Implements InputStream.read(), but strips out the DOCTYPE tag from the input.

Overrides:

read in class java.io.FileInputStream

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Implements InputStream.read(byte[]), but strips out the DOCTYPE tag from the input.

Overrides:

read in class java.io.FileInputStream

Throws:

java.io.IOException

read

public int read(byte[] b,
                int offset,
                int len)
         throws java.io.IOException

Implements InputStream.read(byte[], int, int), but strips out the DOCTYPE tag from the input.

Overrides:

read in class java.io.FileInputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

mark

public void mark(int limit)

Overrides:

mark in class java.io.InputStream

reset

public void reset()

Overrides:

reset in class java.io.InputStream