Initial checking of Mark Benvenuto's security code

1 files changed, 250 insertions, 0 deletions

diff --git a/java/security/cert/CertificateFactory.java b/java/security/cert/CertificateFactory.java
new file mode 100644
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+++ b/java/security/cert/CertificateFactory.java
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+/* CertificateFactory.java --- Certificate Factory Class

+   

+  Copyright (c) 1999 by Free Software Foundation, Inc.

+  Written by Mark Benvenuto <ivymccough@worldnet.att.net>

+

+  This program is free software; you can redistribute it and/or modify

+  it under the terms of the GNU Library General Public License as published 

+  by the Free Software Foundation, version 2. (see COPYING.LIB)

+

+  This program is distributed in the hope that it will be useful, but

+  WITHOUT ANY WARRANTY; without even the implied warranty of

+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+  GNU General Public License for more details.

+

+  You should have received a copy of the GNU General Public License

+  along with this program; if not, write to the Free Software Foundation

+  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA. */

+

+package java.security.cert;

+import java.security.NoSuchProviderException;

+import java.security.Provider;

+import java.security.Security;

+import java.io.InputStream;

+import java.util.Collection;

+

+/**

+	This class implments the CertificateFactory class interface

+	used to generate certificates and certificate revocation

+	list (CRL) objects from their encodings.

+

+	A certifcate factory for X.509 returns certificates of the 

+	java.security.cert.X509Certificate class, and CRLs of the 

+	java.security.cert.X509CRL class. 

+

+	@since JDK 1.2

+

+	@author Mark Benvenuto

+*/

+public class CertificateFactory

+{

+

+private CertificateFactorySpi certFacSpi;

+private Provider provider;

+private String type;

+

+/**

+	Creates an instance of CertificateFactory

+

+	@param certFacSpi A CertificateFactory engine to use

+	@param provider A provider to use

+	@param type The type of Certificate

+*/

+protected CertificateFactory(CertificateFactorySpi certFacSpi, Provider provider, String type)

+{

+	this.certFacSpi = certFacSpi;

+	this.provider = provider;

+	this.type = type;

+}

+

+

+/** 

+	Gets an instance of the CertificateFactory class representing

+	the specified certificate factory. If the type is not 

+	found then, it throws CertificateException.

+

+	@param type the type of certificate to choose

+

+	@return a CertificateFactory repesenting the desired type

+

+	@throws CertificateException if the type of certificate is not implemented by providers

+*/

+public static final CertificateFactory getInstance(String type) throws CertificateException

+{

+    Provider[] p = Security.getProviders ();

+

+    for (int i = 0; i < p.length; i++)

+    {

+      String classname = p[i].getProperty ("CertificateFactory." + type);

+      if (classname != null)

+	return getInstance (classname, type, p[i]);

+    }

+

+    throw new CertificateException(type);

+}

+

+

+

+/** 

+	Gets an instance of the CertificateFactory class representing

+	the specified certificate factory from the specified provider. 

+	If the type is not found then, it throws CertificateException. 

+	If the provider is not found, then it throws 

+	NoSuchProviderException.

+

+	@param type the type of certificate to choose

+

+	@return a CertificateFactory repesenting the desired type

+

+	@throws CertificateException if the type of certificate is not implemented by providers

+	@throws NoSuchProviderException if the provider is not found

+*/

+public static final CertificateFactory getInstance(String type, String provider) 

+	throws CertificateException, NoSuchProviderException

+{

+	Provider p = Security.getProvider(provider);

+	if( p == null)

+		throw new NoSuchProviderException();

+

+    return getInstance (p.getProperty ("CertificateFactory." + type),

+			type, p);

+}

+

+private static CertificateFactory getInstance (String classname,

+					String type,

+					Provider provider)

+	throws CertificateException

+{

+        try {

+                return new CertificateFactory( (CertificateFactorySpi)Class.forName( classname ).newInstance(), provider, type );

+        } catch( ClassNotFoundException cnfe) {

+		throw new CertificateException("Class not found");

+	} catch( InstantiationException ie) {

+		throw new CertificateException("Class instantiation failed");

+	} catch( IllegalAccessException iae) {

+		throw new CertificateException("Illegal Access");

+        }

+}

+

+

+/**

+	Gets the provider that the class is from.

+

+	@return the provider of this class

+*/

+public final Provider getProvider()

+{

+	return provider;

+}

+

+/**

+	Returns the type of the certificate supported

+

+	@return A string with the type of certificate

+*/

+public final String getType()

+{

+	return type;

+}

+

+/**

+	Generates a Certificate based on the encoded data read

+	from the InputStream.

+

+	The input stream must contain only one certificate.

+

+	If there exists a specialized certificate class for the

+	certificate format handled by the certificate factory

+	then the return Ceritificate should be a typecast of it.

+	Ex: A X.509 CertificateFactory should return X509Certificate.

+

+	For X.509 certificates, the certificate in inStream must be

+	DER encoded and supplied in binary or printable (Base64) 

+	encoding. If the certificate is in Base64 encoding, it must be 

+	bounded by -----BEGINCERTIFICATE-----, and 

+	-----END CERTIFICATE-----. 

+

+	@param inStream an input stream containing the certificate data

+

+	@return a certificate initialized with InputStream data.

+

+	@throws CertificateException Certificate parsing error

+*/

+public final Certificate generateCertificate(InputStream inStream)

+                                      throws CertificateException

+{

+	return certFacSpi.engineGenerateCertificate( inStream );

+}

+

+/**

+	Returns a collection of certificates that were read from the 

+	input stream. It may be empty, have only one, or have 

+	multiple certificates.

+

+	For a X.509 certificate factory, the stream may contain a

+	single DER encoded certificate or a PKCS#7 certificate 

+	chain. This is a PKCS#7 <I>SignedData</I> object with the 

+	most significant field being <I>certificates</I>. If no 

+	CRLs are present, then an empty collection is returned.

+	

+	@param inStream an input stream containing the certificates

+

+	@return a collection of certificates initialized with 

+	the InputStream data.

+

+	@throws CertificateException Certificate parsing error

+*/

+public final Collection generateCertificates(InputStream inStream)

+                                      throws CertificateException

+{

+	return certFacSpi.engineGenerateCertificates( inStream );

+}

+

+/**

+	Generates a CRL based on the encoded data read

+	from the InputStream.

+

+	The input stream must contain only one CRL.

+

+	If there exists a specialized CRL class for the

+	CRL format handled by the certificate factory

+	then the return CRL should be a typecast of it.

+	Ex: A X.509 CertificateFactory should return X509CRL.

+

+	@param inStream an input stream containing the CRL data

+

+	@return a CRL initialized with InputStream data.

+

+	@throws CRLException CRL parsing error

+*/

+public final CRL generateCRL(InputStream inStream)

+                      throws CRLException

+{

+	return certFacSpi.engineGenerateCRL( inStream );

+}

+

+

+/**

+	Generates CRLs based on the encoded data read

+	from the InputStream.

+

+	For a X.509 certificate factory, the stream may contain a

+	single DER encoded CRL or a PKCS#7 CRL set. This is a 

+	PKCS#7 <I>SignedData</I> object with the most significant 

+	field being <I>crls</I>. If no CRLs are present, then an

+	empty collection is returned.

+

+	@param inStream an input stream containing the CRLs

+

+	@return a collection of CRLs initialized with 

+	the InputStream data.

+

+	@throws CRLException CRL parsing error

+*/

+public final Collection generateCRLs(InputStream inStream)

+                              throws CRLException

+{

+	return certFacSpi.engineGenerateCRLs( inStream );

+}

+

+}