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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed 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 com.bugvm.conscrypt;
import org.apache.harmony.security.utils.AlgNameMapper;
import com.bugvm.conscrypt.OpenSSLX509CertificateFactory.ParsingException;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Principal;
import java.security.PublicKey;
import java.security.Signature;
import java.security.SignatureException;
import java.security.cert.CRLException;
import java.security.cert.Certificate;
import java.security.cert.X509CRL;
import java.security.cert.X509CRLEntry;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.TimeZone;
import javax.security.auth.x500.X500Principal;
public class OpenSSLX509CRL extends X509CRL {
private final long mContext;
private OpenSSLX509CRL(long ctx) {
mContext = ctx;
}
public static OpenSSLX509CRL fromX509DerInputStream(InputStream is) throws ParsingException {
final OpenSSLBIOInputStream bis = new OpenSSLBIOInputStream(is);
try {
final long crlCtx = NativeCrypto.d2i_X509_CRL_bio(bis.getBioContext());
if (crlCtx == 0) {
return null;
}
return new OpenSSLX509CRL(crlCtx);
} catch (Exception e) {
throw new ParsingException(e);
} finally {
NativeCrypto.BIO_free(bis.getBioContext());
}
}
public static List fromPkcs7DerInputStream(InputStream is)
throws ParsingException {
OpenSSLBIOInputStream bis = new OpenSSLBIOInputStream(is);
final long[] certRefs;
try {
certRefs = NativeCrypto.d2i_PKCS7_bio(bis.getBioContext(), NativeCrypto.PKCS7_CRLS);
} catch (Exception e) {
throw new ParsingException(e);
} finally {
NativeCrypto.BIO_free(bis.getBioContext());
}
final List certs = new ArrayList(certRefs.length);
for (int i = 0; i < certRefs.length; i++) {
if (certRefs[i] == 0) {
continue;
}
certs.add(new OpenSSLX509CRL(certRefs[i]));
}
return certs;
}
public static OpenSSLX509CRL fromX509PemInputStream(InputStream is) throws ParsingException {
final OpenSSLBIOInputStream bis = new OpenSSLBIOInputStream(is);
try {
final long crlCtx = NativeCrypto.PEM_read_bio_X509_CRL(bis.getBioContext());
if (crlCtx == 0) {
return null;
}
return new OpenSSLX509CRL(crlCtx);
} catch (Exception e) {
throw new ParsingException(e);
} finally {
NativeCrypto.BIO_free(bis.getBioContext());
}
}
public static List fromPkcs7PemInputStream(InputStream is)
throws ParsingException {
OpenSSLBIOInputStream bis = new OpenSSLBIOInputStream(is);
final long[] certRefs;
try {
certRefs = NativeCrypto.PEM_read_bio_PKCS7(bis.getBioContext(),
NativeCrypto.PKCS7_CRLS);
} catch (Exception e) {
throw new ParsingException(e);
} finally {
NativeCrypto.BIO_free(bis.getBioContext());
}
final List certs = new ArrayList(certRefs.length);
for (int i = 0; i < certRefs.length; i++) {
if (certRefs[i] == 0) {
continue;
}
certs.add(new OpenSSLX509CRL(certRefs[i]));
}
return certs;
}
@Override
public Set getCriticalExtensionOIDs() {
String[] critOids =
NativeCrypto.get_X509_CRL_ext_oids(mContext, NativeCrypto.EXTENSION_TYPE_CRITICAL);
/*
* This API has a special case that if there are no extensions, we
* should return null. So if we have no critical extensions, we'll check
* non-critical extensions.
*/
if ((critOids.length == 0)
&& (NativeCrypto.get_X509_CRL_ext_oids(mContext,
NativeCrypto.EXTENSION_TYPE_NON_CRITICAL).length == 0)) {
return null;
}
return new HashSet(Arrays.asList(critOids));
}
@Override
public byte[] getExtensionValue(String oid) {
return NativeCrypto.X509_CRL_get_ext_oid(mContext, oid);
}
@Override
public Set getNonCriticalExtensionOIDs() {
String[] nonCritOids =
NativeCrypto.get_X509_CRL_ext_oids(mContext,
NativeCrypto.EXTENSION_TYPE_NON_CRITICAL);
/*
* This API has a special case that if there are no extensions, we
* should return null. So if we have no non-critical extensions, we'll
* check critical extensions.
*/
if ((nonCritOids.length == 0)
&& (NativeCrypto.get_X509_CRL_ext_oids(mContext,
NativeCrypto.EXTENSION_TYPE_CRITICAL).length == 0)) {
return null;
}
return new HashSet(Arrays.asList(nonCritOids));
}
@Override
public boolean hasUnsupportedCriticalExtension() {
final String[] criticalOids =
NativeCrypto.get_X509_CRL_ext_oids(mContext, NativeCrypto.EXTENSION_TYPE_CRITICAL);
for (String oid : criticalOids) {
final long extensionRef = NativeCrypto.X509_CRL_get_ext(mContext, oid);
if (NativeCrypto.X509_supported_extension(extensionRef) != 1) {
return true;
}
}
return false;
}
@Override
public byte[] getEncoded() throws CRLException {
return NativeCrypto.i2d_X509_CRL(mContext);
}
private void verifyOpenSSL(OpenSSLKey pkey) throws CRLException, NoSuchAlgorithmException,
InvalidKeyException, NoSuchProviderException, SignatureException {
NativeCrypto.X509_CRL_verify(mContext, pkey.getPkeyContext());
}
private void verifyInternal(PublicKey key, String sigProvider) throws CRLException,
NoSuchAlgorithmException, InvalidKeyException, NoSuchProviderException,
SignatureException {
String sigAlg = getSigAlgName();
if (sigAlg == null) {
sigAlg = getSigAlgOID();
}
final Signature sig;
if (sigProvider == null) {
sig = Signature.getInstance(sigAlg);
} else {
sig = Signature.getInstance(sigAlg, sigProvider);
}
sig.initVerify(key);
sig.update(getTBSCertList());
if (!sig.verify(getSignature())) {
throw new SignatureException("signature did not verify");
}
}
@Override
public void verify(PublicKey key) throws CRLException, NoSuchAlgorithmException,
InvalidKeyException, NoSuchProviderException, SignatureException {
if (key instanceof OpenSSLKeyHolder) {
OpenSSLKey pkey = ((OpenSSLKeyHolder) key).getOpenSSLKey();
verifyOpenSSL(pkey);
return;
}
verifyInternal(key, null);
}
@Override
public void verify(PublicKey key, String sigProvider) throws CRLException,
NoSuchAlgorithmException, InvalidKeyException, NoSuchProviderException,
SignatureException {
verifyInternal(key, sigProvider);
}
@Override
public int getVersion() {
return (int) NativeCrypto.X509_CRL_get_version(mContext) + 1;
}
@Override
public Principal getIssuerDN() {
return getIssuerX500Principal();
}
@Override
public X500Principal getIssuerX500Principal() {
final byte[] issuer = NativeCrypto.X509_CRL_get_issuer_name(mContext);
return new X500Principal(issuer);
}
@Override
public Date getThisUpdate() {
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.set(Calendar.MILLISECOND, 0);
NativeCrypto.ASN1_TIME_to_Calendar(NativeCrypto.X509_CRL_get_lastUpdate(mContext),
calendar);
return calendar.getTime();
}
@Override
public Date getNextUpdate() {
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.set(Calendar.MILLISECOND, 0);
NativeCrypto.ASN1_TIME_to_Calendar(NativeCrypto.X509_CRL_get_nextUpdate(mContext),
calendar);
return calendar.getTime();
}
@Override
public X509CRLEntry getRevokedCertificate(BigInteger serialNumber) {
final long revokedRef = NativeCrypto.X509_CRL_get0_by_serial(mContext,
serialNumber.toByteArray());
if (revokedRef == 0) {
return null;
}
return new OpenSSLX509CRLEntry(NativeCrypto.X509_REVOKED_dup(revokedRef));
}
@Override
public X509CRLEntry getRevokedCertificate(X509Certificate certificate) {
if (certificate instanceof OpenSSLX509Certificate) {
OpenSSLX509Certificate osslCert = (OpenSSLX509Certificate) certificate;
final long x509RevokedRef = NativeCrypto.X509_CRL_get0_by_cert(mContext,
osslCert.getContext());
if (x509RevokedRef == 0) {
return null;
}
return new OpenSSLX509CRLEntry(NativeCrypto.X509_REVOKED_dup(x509RevokedRef));
}
return getRevokedCertificate(certificate.getSerialNumber());
}
@Override
public Set getRevokedCertificates() {
final long[] entryRefs = NativeCrypto.X509_CRL_get_REVOKED(mContext);
if (entryRefs == null || entryRefs.length == 0) {
return null;
}
final Set crlSet = new HashSet();
for (long entryRef : entryRefs) {
crlSet.add(new OpenSSLX509CRLEntry(entryRef));
}
return crlSet;
}
@Override
public byte[] getTBSCertList() throws CRLException {
return NativeCrypto.get_X509_CRL_crl_enc(mContext);
}
@Override
public byte[] getSignature() {
return NativeCrypto.get_X509_CRL_signature(mContext);
}
@Override
public String getSigAlgName() {
return AlgNameMapper.map2AlgName(getSigAlgOID());
}
@Override
public String getSigAlgOID() {
return NativeCrypto.get_X509_CRL_sig_alg_oid(mContext);
}
@Override
public byte[] getSigAlgParams() {
return NativeCrypto.get_X509_CRL_sig_alg_parameter(mContext);
}
@Override
public boolean isRevoked(Certificate cert) {
if (!(cert instanceof X509Certificate)) {
return false;
}
final OpenSSLX509Certificate osslCert;
if (cert instanceof OpenSSLX509Certificate) {
osslCert = (OpenSSLX509Certificate) cert;
} else {
try {
osslCert = OpenSSLX509Certificate.fromX509DerInputStream(new ByteArrayInputStream(
cert.getEncoded()));
} catch (Exception e) {
throw new RuntimeException("cannot convert certificate", e);
}
}
final long x509RevokedRef = NativeCrypto.X509_CRL_get0_by_cert(mContext,
osslCert.getContext());
return x509RevokedRef != 0;
}
@Override
public String toString() {
ByteArrayOutputStream os = new ByteArrayOutputStream();
final long bioCtx = NativeCrypto.create_BIO_OutputStream(os);
try {
NativeCrypto.X509_CRL_print(bioCtx, mContext);
return os.toString();
} finally {
NativeCrypto.BIO_free(bioCtx);
}
}
@Override
protected void finalize() throws Throwable {
try {
if (mContext != 0) {
NativeCrypto.X509_CRL_free(mContext);
}
} finally {
super.finalize();
}
}
}
