/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package java.security.cert;
import java.security.AccessController;
import java.security.InvalidAlgorithmParameterException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.Security;
import java.util.Collection;
import org.apache.harmony.security.fortress.Engine;
import org.apache.harmony.security.internal.nls.Messages;
/**
* This class provides the functionality to retrieve {@code Certificate}s and
* {@code CRL}s from a read-only repository. This repository may be very large
* and may store trusted as well as untrusted certificates.
*
* @since Android 1.0
*/
public class CertStore {
// Store spi implementation service name
private static final String SERVICE = "CertStore"; //$NON-NLS-1$
// Used to access common engine functionality
private static Engine engine = new Engine(SERVICE);
// Store default property name
private static final String PROPERTYNAME = "certstore.type"; //$NON-NLS-1$
// Default value of CertStore type. It returns if certpathbuild.type
// property is not defined in java.security file
private static final String DEFAULTPROPERTY = "LDAP"; //$NON-NLS-1$
// Store used provider
private final Provider provider;
// Store CertStoreSpi implementation
private final CertStoreSpi spiImpl;
// Store used type
private final String type;
// Store used parameters
private final CertStoreParameters certStoreParams;
/**
* Creates a new {@code CertStore} instance.
*
* @param storeSpi
* the implementation delegate.
* @param provider
* the security provider.
* @param type
* the certificate store type.
* @param params
* the certificate store parameters (may be {@code null}.
* @since Android 1.0
*/
protected CertStore(CertStoreSpi storeSpi, Provider provider, String type,
CertStoreParameters params) {
this.provider = provider;
this.type = type;
this.spiImpl = storeSpi;
this.certStoreParams = params;
}
/**
* Creates a new {@code CertStore} instance with the specified type and
* initialized with the specified parameters.
*
* @param type
* the certificate store type.
* @param params
* the certificate store parameters (may be {@code null}).
* @return the new certificate store instance.
* @throws NoSuchAlgorithmException
* if no provider can provide the specified certificate store
* type.
* @throws InvalidAlgorithmParameterException
* if the specified parameters cannot be used to initialize this
* certificate store instance.
* @throws NullPointerException
* if the {@code type} is {@code null}.
* @since Android 1.0
*/
public static CertStore getInstance(String type, CertStoreParameters params)
throws InvalidAlgorithmParameterException, NoSuchAlgorithmException {
if (type == null) {
throw new NullPointerException(Messages.getString("security.07")); //$NON-NLS-1$
}
try {
synchronized (engine) {
engine.getInstance(type, params);
return new CertStore((CertStoreSpi) engine.spi, engine.provider,
type, params);
}
} catch (NoSuchAlgorithmException e) {
Throwable th = e.getCause();
if (th == null) {
throw e;
} else {
throw new InvalidAlgorithmParameterException(e.getMessage(), th);
}
}
}
/**
* Creates a new {@code CertStore} instance from the specified provider with
* the specified type and initialized with the specified parameters.
*
* @param type
* the certificate store type.
* @param params
* the certificate store parameters (may be {@code null}).
* @param provider
* the name of the provider.
* @return the new certificate store instance.
* @throws NoSuchAlgorithmException
* if the specified provider cannot provide the requested
* certificate store type.
* @throws NoSuchProviderException
* if no provider with the specified name can be found.
* @throws InvalidAlgorithmParameterException
* if the specified parameters cannot be used to initialize this
* certificate store instance.
* @throws IllegalArgumentException
* if provider is null of empty.
* @throws NullPointerException
* if {@code type} is {@code null}.
* @since Android 1.0
*/
public static CertStore getInstance(String type,
CertStoreParameters params, String provider)
throws InvalidAlgorithmParameterException,
NoSuchAlgorithmException, NoSuchProviderException {
if ((provider == null) || (provider.length() == 0)) {
throw new IllegalArgumentException(Messages.getString("security.02")); //$NON-NLS-1$
}
Provider impProvider = Security.getProvider(provider);
if (impProvider == null) {
throw new NoSuchProviderException(provider);
}
return getInstance(type, params, impProvider);
}
/**
* Creates a new {@code CertStore} instance from the specified provider with
* the specified type and initialized with the specified parameters.
* @param type
* the certificate store type.
* @param params
* the certificate store parameters (may be {@code null}).
* @param provider
* the name of the provider.
* @return the new certificate store instance.
* @throws NoSuchAlgorithmException
* if the specified provider cannot provide the requested
* certificate store type.
* @throws InvalidAlgorithmParameterException
* if the specified parameters cannot be used to initialize this
* certificate store instance.
* @throws IllegalArgumentException
* if provider is {@code null}.
* @throws NullPointerException
* if {@code type} is {@code null}.
* @since Android 1.0
*/
public static CertStore getInstance(String type,
CertStoreParameters params, Provider provider)
throws NoSuchAlgorithmException, InvalidAlgorithmParameterException {
if (provider == null) {
throw new IllegalArgumentException(Messages.getString("security.04")); //$NON-NLS-1$
}
if (type == null) {
throw new NullPointerException(Messages.getString("security.07")); //$NON-NLS-1$
}
try {
synchronized (engine) {
engine.getInstance(type, provider, params);
return new CertStore((CertStoreSpi) engine.spi, provider, type,
params);
}
} catch (NoSuchAlgorithmException e) {
Throwable th = e.getCause();
if (th == null) {
throw e;
} else {
throw new InvalidAlgorithmParameterException(e.getMessage(), th);
}
}
}
/**
* Returns the certificate store type.
*
* @return the certificate store type.
* @since Android 1.0
*/
public final String getType() {
return type;
}
/**
* Returns the security provider.
*
* @return the security provider.
* @since Android 1.0
*/
public final Provider getProvider() {
return provider;
}
/**
* Returns a copy of the certificate store parameters that were used to
* initialize this instance.
*
* @return a copy of the certificate store parameters or {@code null} if
* none were specified.
* @since Android 1.0
*/
public final CertStoreParameters getCertStoreParameters() {
if (certStoreParams == null) {
return null;
} else {
return (CertStoreParameters) certStoreParams.clone();
}
}
/**
* Returns the list of {@code Certificate}s for the specified {@code
* CertSelector} from this certificate store.
*
* @param selector
* the selector containing the criteria to search for
* certificates in this certificate store.
* @return the list of {@code Certificate}s that match the criteria of the
* specified selector.
* @throws CertStoreException
* if error(s) occur.
* @since Android 1.0
*/
public final Collection<? extends Certificate> getCertificates(CertSelector selector)
throws CertStoreException {
return spiImpl.engineGetCertificates(selector);
}
/**
* Returns the list of {@code CRL}s for the specified {@code CRLSelector}
* from this certificate store.
*
* @param selector
* the selector containing the criteria to search for certificate
* revocation lists in this store.
* @return the list of {@code CRL}s that match the criteria of the specified
* selector
* @throws CertStoreException
* if error(s) occur.
* @since Android 1.0
*/
public final Collection<? extends CRL> getCRLs(CRLSelector selector)
throws CertStoreException {
return spiImpl.engineGetCRLs(selector);
}
/**
* Returns the default {@code CertStore} type from the <i>Security
* Properties</i>.
*
* @return the default {@code CertStore} type from the <i>Security
* Properties</i>, or the string {@code "LDAP"} if it cannot be
* determined.
* @since Android 1.0
*/
public static final String getDefaultType() {
String defaultType = AccessController
.doPrivileged(new java.security.PrivilegedAction<String>() {
public String run() {
return Security.getProperty(PROPERTYNAME);
}
});
return (defaultType == null ? DEFAULTPROPERTY : defaultType);
}
}
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