public class

JarVerifierStream

extends ZipInputStream

java.lang.Object
↳	java.io.InputStream
	↳	java.io.FilterInputStream
		↳	java.util.zip.InflaterInputStream
			↳	java.util.zip.ZipInputStream
				↳	sun.tools.jar.JarVerifierStream

Class Overview

This is OBSOLETE. DO NOT USE THIS. Use java.util.jar.JarEntry.getCertificates instead. It has to stay here because some apps (namely HJ and HJV) call directly into it. This class is stripped down greatly from JDK 1.1.x.

Summary

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Inherited Constants

From class java.util.zip.ZipInputStream

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Inherited Fields

From class java.util.zip.InflaterInputStream

From class java.io.FilterInputStream

Public Constructors
	JarVerifierStream(InputStream is) construct a JarVerfierStream from an input stream.

Public Methods
void	close() Closes this input stream and releases any system resources associated with the stream.
void	closeEntry() Closes the current ZIP entry and positions the stream for reading the next entry.
Enumeration	getBlocks() Returns an enumeration of PKCS7 blocks.
Manifest	getManifest() Convert java.util.jar.Manifest object to a sun.tools.jar.Manifest object.
Hashtable	getNameToHash() This method used to be called by various versions of AppletResourceLoader, even though they didn't do anything with the result.
synchronized ZipEntry	getNextEntry() This method scans to see which entry we're parsing and keeps various state information depending on what type of file is being parsed.
Hashtable	getVerifiedSignatures() Returns a Hashtable mapping filenames to vectors of identities.
int	read() read a single byte.
int	read(byte[] b, int off, int len) read an array of bytes.

Protected Methods
Vector	getIds(Certificate[] certs) Returns the Identity vector for the given array of Certificates

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Inherited Methods

From class java.util.zip.ZipInputStream

From class java.util.zip.InflaterInputStream

int	available() Returns 0 after EOF has been reached, otherwise always return 1.
void	close() Closes this input stream and releases any system resources associated with the stream.
void	fill() Fills input buffer with more data to decompress.
synchronized void	mark(int readlimit) Marks the current position in this input stream.
boolean	markSupported() Tests if this input stream supports the `mark` and `reset` methods.
int	read() Reads a byte of uncompressed data.
int	read(byte[] b, int off, int len) Reads uncompressed data into an array of bytes.
synchronized void	reset() Repositions this stream to the position at the time the `mark` method was last called on this input stream.
long	skip(long n) Skips specified number of bytes of uncompressed data.

From class java.io.FilterInputStream

int	available() Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream.
void	close() Closes this input stream and releases any system resources associated with the stream.
synchronized void	mark(int readlimit) Marks the current position in this input stream.
boolean	markSupported() Tests if this input stream supports the `mark` and `reset` methods.
int	read(byte[] b) Reads up to `byte.length` bytes of data from this input stream into an array of bytes.
int	read() Reads the next byte of data from this input stream.
int	read(byte[] b, int off, int len) Reads up to `len` bytes of data from this input stream into an array of bytes.
synchronized void	reset() Repositions this stream to the position at the time the `mark` method was last called on this input stream.
long	skip(long n) Skips over and discards `n` bytes of data from this input stream. This method simply performs `in.skip(n)`.

From class java.io.InputStream

int	available() Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
void	close() Closes this input stream and releases any system resources associated with the stream.
synchronized void	mark(int readlimit) Marks the current position in this input stream.
boolean	markSupported() Tests if this input stream supports the `mark` and `reset` methods.
int	read(byte[] b) Reads some number of bytes from the input stream and stores them into the buffer array `b`.
abstract int	read() Reads the next byte of data from the input stream.
int	read(byte[] b, int off, int len) Reads up to `len` bytes of data from the input stream into an array of bytes.
synchronized void	reset() Repositions this stream to the position at the time the `mark` method was last called on this input stream.
long	skip(long n) Skips over and discards `n` bytes of data from this input stream.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

From interface java.io.Closeable

Public Constructors

public JarVerifierStream (InputStream is)

construct a JarVerfierStream from an input stream.

Throws

IOException

Public Methods

public void close ()

Closes this input stream and releases any system resources associated with the stream.

Throws

IOException

public void closeEntry ()

Closes the current ZIP entry and positions the stream for reading the next entry.

Throws

IOException

public Enumeration getBlocks ()

Returns an enumeration of PKCS7 blocks. This looks bogus, but Hotjava just checks to see if enumeration is not null to see if anything was signed!

public Manifest getManifest ()

Convert java.util.jar.Manifest object to a sun.tools.jar.Manifest object.

public Hashtable getNameToHash ()

This method used to be called by various versions of AppletResourceLoader, even though they didn't do anything with the result. We leave them and return null for backwards compatability.

public synchronized ZipEntry getNextEntry ()

This method scans to see which entry we're parsing and keeps various state information depending on what type of file is being parsed. Files it treats specially are:

Manifest files. At any point, this stream can be queried for a manifest. If it is present, a Manifest object will be returned.
Block Signature file. Like with the manifest, the stream can be queried at any time for all blocks parsed thus far.

Returns

the next ZIP file entry, or null if there are no more entries

Throws

IOException

public Hashtable getVerifiedSignatures ()

Returns a Hashtable mapping filenames to vectors of identities.

public int read ()

read a single byte.

Returns

the byte read, or -1 if end of compressed input is reached

Throws

IOException

public int read (byte[] b, int off, int len)

read an array of bytes.

Parameters

b	the buffer into which the data is read
off	the start offset in the destination array `b`
len	the maximum number of bytes read

Returns

the actual number of bytes read, or -1 if the end of the entry is reached

Throws

IOException

Protected Methods

protected Vector getIds (Certificate[] certs)

Returns the Identity vector for the given array of Certificates

Classes

Exceptions

JarVerifierStream

Class Overview

Summary

Public Constructors

public JarVerifierStream (InputStream is)

Throws

Public Methods

public void close ()

Throws

public void closeEntry ()

Throws

public Enumeration getBlocks ()

public Manifest getManifest ()

public Hashtable getNameToHash ()

public synchronized ZipEntry getNextEntry ()

Returns

Throws

public Hashtable getVerifiedSignatures ()

public int read ()

Returns

Throws

public int read (byte[] b, int off, int len)

Parameters

Returns

Throws

Protected Methods

protected Vector getIds (Certificate[] certs)