Package net.lingala.zip4j.io.inputstream

Class CipherInputStream<T extends Decrypter>

java.lang.Object

java.io.InputStream

net.lingala.zip4j.io.inputstream.CipherInputStream<T>

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

AesCipherInputStream, NoCipherInputStream, ZipStandardCipherInputStream

abstract class CipherInputStream<T extends Decrypter>
extends java.io.InputStream

Field Summary

Fields

Modifier and Type	Field	Description
private T	decrypter
private byte[]	lastReadRawDataCache
private LocalFileHeader	localFileHeader
private byte[]	singleByteBuffer
private ZipEntryInputStream	zipEntryInputStream

Constructor Summary

Constructors

Constructor	Description
CipherInputStream(ZipEntryInputStream zipEntryInputStream, LocalFileHeader localFileHeader, char[] password, int bufferSize, boolean useUtf8ForPassword)

Method Summary

Modifier and Type	Method	Description
private void	cacheRawData(byte[] b, int len)
void	close()
protected void	endOfEntryReached(java.io.InputStream inputStream, int numberOfBytesPushedBack)
T	getDecrypter()
byte[]	getLastReadRawDataCache()
LocalFileHeader	getLocalFileHeader()
protected long	getNumberOfBytesReadForThisEntry()
protected abstract T	initializeDecrypter(LocalFileHeader localFileHeader, char[] password, boolean useUtf8ForPassword)
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
protected int	readRaw(byte[] b)

Methods inherited from class java.io.InputStream

available, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

zipEntryInputStream

private ZipEntryInputStream zipEntryInputStream

decrypter

private T extends Decrypter decrypter

lastReadRawDataCache

private byte[] lastReadRawDataCache

singleByteBuffer

private byte[] singleByteBuffer

localFileHeader

private LocalFileHeader localFileHeader

Constructor Detail

CipherInputStream

public CipherInputStream(ZipEntryInputStream zipEntryInputStream,
                         LocalFileHeader localFileHeader,
                         char[] password,
                         int bufferSize,
                         boolean useUtf8ForPassword)
                  throws java.io.IOException

Throws:

java.io.IOException

Method Detail

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

getLastReadRawDataCache

public byte[] getLastReadRawDataCache()

readRaw

protected int readRaw(byte[] b)
               throws java.io.IOException

Throws:

java.io.IOException

cacheRawData

private void cacheRawData(byte[] b,
                          int len)

getDecrypter

public T getDecrypter()

endOfEntryReached

protected void endOfEntryReached(java.io.InputStream inputStream,
                                 int numberOfBytesPushedBack)
                          throws java.io.IOException

Throws:

java.io.IOException

getNumberOfBytesReadForThisEntry

protected long getNumberOfBytesReadForThisEntry()

getLocalFileHeader

public LocalFileHeader getLocalFileHeader()

initializeDecrypter

protected abstract T initializeDecrypter(LocalFileHeader localFileHeader,
                                         char[] password,
                                         boolean useUtf8ForPassword)
                                  throws java.io.IOException

Throws:

java.io.IOException