org.openeuler.sun.security.ssl.SSLAlgorithmConstraints Maven / Gradle / Ivy
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
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package org.openeuler.sun.security.ssl;
import java.security.AlgorithmConstraints;
import java.security.AlgorithmParameters;
import java.security.CryptoPrimitive;
import java.security.Key;
import java.util.Set;
import javax.net.ssl.*;
import sun.security.util.DisabledAlgorithmConstraints;
import static sun.security.util.DisabledAlgorithmConstraints.*;
/**
* Algorithm constraints for disabled algorithms property
*
* See the "jdk.certpath.disabledAlgorithms" specification in java.security
* for the syntax of the disabled algorithm string.
*/
final class SSLAlgorithmConstraints implements AlgorithmConstraints {
private static final AlgorithmConstraints tlsDisabledAlgConstraints =
new DisabledAlgorithmConstraints(PROPERTY_TLS_DISABLED_ALGS,
new SSLAlgorithmDecomposer());
private static final AlgorithmConstraints x509DisabledAlgConstraints =
new DisabledAlgorithmConstraints(PROPERTY_CERTPATH_DISABLED_ALGS,
new SSLAlgorithmDecomposer(true));
private final AlgorithmConstraints userSpecifiedConstraints;
private final AlgorithmConstraints peerSpecifiedConstraints;
private final boolean enabledX509DisabledAlgConstraints;
// the default algorithm constraints
static final AlgorithmConstraints DEFAULT =
new SSLAlgorithmConstraints(null);
// the default SSL only algorithm constraints
static final AlgorithmConstraints DEFAULT_SSL_ONLY =
new SSLAlgorithmConstraints((SSLSocket)null, false);
SSLAlgorithmConstraints(AlgorithmConstraints userSpecifiedConstraints) {
this.userSpecifiedConstraints = userSpecifiedConstraints;
this.peerSpecifiedConstraints = null;
this.enabledX509DisabledAlgConstraints = true;
}
SSLAlgorithmConstraints(SSLSocket socket,
boolean withDefaultCertPathConstraints) {
this.userSpecifiedConstraints = getUserSpecifiedConstraints(socket);
this.peerSpecifiedConstraints = null;
this.enabledX509DisabledAlgConstraints = withDefaultCertPathConstraints;
}
SSLAlgorithmConstraints(SSLEngine engine,
boolean withDefaultCertPathConstraints) {
this.userSpecifiedConstraints = getUserSpecifiedConstraints(engine);
this.peerSpecifiedConstraints = null;
this.enabledX509DisabledAlgConstraints = withDefaultCertPathConstraints;
}
SSLAlgorithmConstraints(SSLSocket socket, String[] supportedAlgorithms,
boolean withDefaultCertPathConstraints) {
this.userSpecifiedConstraints = getUserSpecifiedConstraints(socket);
this.peerSpecifiedConstraints =
new SupportedSignatureAlgorithmConstraints(supportedAlgorithms);
this.enabledX509DisabledAlgConstraints = withDefaultCertPathConstraints;
}
SSLAlgorithmConstraints(SSLEngine engine, String[] supportedAlgorithms,
boolean withDefaultCertPathConstraints) {
this.userSpecifiedConstraints = getUserSpecifiedConstraints(engine);
this.peerSpecifiedConstraints =
new SupportedSignatureAlgorithmConstraints(supportedAlgorithms);
this.enabledX509DisabledAlgConstraints = withDefaultCertPathConstraints;
}
private static AlgorithmConstraints getUserSpecifiedConstraints(
SSLEngine engine) {
if (engine != null) {
// Note that the KeyManager or TrustManager implementation may be
// not implemented in the same provider as SSLSocket/SSLEngine.
// Please check the instance before casting to use SSLEngineImpl.
if (engine instanceof SSLEngineImpl) {
HandshakeContext hc =
((SSLEngineImpl)engine).conContext.handshakeContext;
if (hc != null) {
return hc.sslConfig.userSpecifiedAlgorithmConstraints;
}
}
return engine.getSSLParameters().getAlgorithmConstraints();
}
return null;
}
private static AlgorithmConstraints getUserSpecifiedConstraints(
SSLSocket socket) {
if (socket != null) {
// Note that the KeyManager or TrustManager implementation may be
// not implemented in the same provider as SSLSocket/SSLEngine.
// Please check the instance before casting to use SSLSocketImpl.
if (socket instanceof SSLSocketImpl) {
HandshakeContext hc =
((SSLSocketImpl)socket).conContext.handshakeContext;
if (hc != null) {
return hc.sslConfig.userSpecifiedAlgorithmConstraints;
}
}
return socket.getSSLParameters().getAlgorithmConstraints();
}
return null;
}
@Override
public boolean permits(Set primitives,
String algorithm, AlgorithmParameters parameters) {
boolean permitted = true;
if (peerSpecifiedConstraints != null) {
permitted = peerSpecifiedConstraints.permits(
primitives, algorithm, parameters);
}
if (permitted && userSpecifiedConstraints != null) {
permitted = userSpecifiedConstraints.permits(
primitives, algorithm, parameters);
}
if (permitted) {
permitted = tlsDisabledAlgConstraints.permits(
primitives, algorithm, parameters);
}
if (permitted && enabledX509DisabledAlgConstraints) {
permitted = x509DisabledAlgConstraints.permits(
primitives, algorithm, parameters);
}
return permitted;
}
@Override
public boolean permits(Set primitives, Key key) {
boolean permitted = true;
if (peerSpecifiedConstraints != null) {
permitted = peerSpecifiedConstraints.permits(primitives, key);
}
if (permitted && userSpecifiedConstraints != null) {
permitted = userSpecifiedConstraints.permits(primitives, key);
}
if (permitted) {
permitted = tlsDisabledAlgConstraints.permits(primitives, key);
}
if (permitted && enabledX509DisabledAlgConstraints) {
permitted = x509DisabledAlgConstraints.permits(primitives, key);
}
return permitted;
}
@Override
public boolean permits(Set primitives,
String algorithm, Key key, AlgorithmParameters parameters) {
boolean permitted = true;
if (peerSpecifiedConstraints != null) {
permitted = peerSpecifiedConstraints.permits(
primitives, algorithm, key, parameters);
}
if (permitted && userSpecifiedConstraints != null) {
permitted = userSpecifiedConstraints.permits(
primitives, algorithm, key, parameters);
}
if (permitted) {
permitted = tlsDisabledAlgConstraints.permits(
primitives, algorithm, key, parameters);
}
if (permitted && enabledX509DisabledAlgConstraints) {
permitted = x509DisabledAlgConstraints.permits(
primitives, algorithm, key, parameters);
}
return permitted;
}
private static class SupportedSignatureAlgorithmConstraints
implements AlgorithmConstraints {
// supported signature algorithms
private String[] supportedAlgorithms;
SupportedSignatureAlgorithmConstraints(String[] supportedAlgorithms) {
if (supportedAlgorithms != null) {
this.supportedAlgorithms = supportedAlgorithms.clone();
} else {
this.supportedAlgorithms = null;
}
}
@Override
public boolean permits(Set primitives,
String algorithm, AlgorithmParameters parameters) {
if (algorithm == null || algorithm.isEmpty()) {
throw new IllegalArgumentException(
"No algorithm name specified");
}
if (primitives == null || primitives.isEmpty()) {
throw new IllegalArgumentException(
"No cryptographic primitive specified");
}
if (supportedAlgorithms == null ||
supportedAlgorithms.length == 0) {
return false;
}
// trim the MGF part: withand
int position = algorithm.indexOf("and");
if (position > 0) {
algorithm = algorithm.substring(0, position);
}
for (String supportedAlgorithm : supportedAlgorithms) {
if (algorithm.equalsIgnoreCase(supportedAlgorithm)) {
return true;
}
}
return false;
}
@Override
public final boolean permits(Set primitives, Key key) {
return true;
}
@Override
public final boolean permits(Set primitives,
String algorithm, Key key, AlgorithmParameters parameters) {
if (algorithm == null || algorithm.isEmpty()) {
throw new IllegalArgumentException(
"No algorithm name specified");
}
return permits(primitives, algorithm, parameters);
}
}
}
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