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/*
* Copyright (C) 2014 Square, Inc.
*
* 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 okhttp3.internal.platform;
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.util.List;
import javax.annotation.Nullable;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509TrustManager;
import okhttp3.Protocol;
import org.conscrypt.Conscrypt;
/**
* Platform using Conscrypt (conscrypt.org) if installed as the first Security Provider.
*
* Requires org.conscrypt:conscrypt-openjdk-uber on the classpath.
*/
public class ConscryptPlatform extends Platform {
private ConscryptPlatform() {
}
private Provider getProvider() {
return Conscrypt.newProviderBuilder().provideTrustManager().build();
}
@Override public @Nullable X509TrustManager trustManager(SSLSocketFactory sslSocketFactory) {
if (!Conscrypt.isConscrypt(sslSocketFactory)) {
return super.trustManager(sslSocketFactory);
}
try {
// org.conscrypt.SSLParametersImpl
Object sp =
readFieldOrNull(sslSocketFactory, Object.class, "sslParameters");
if (sp != null) {
return readFieldOrNull(sp, X509TrustManager.class, "x509TrustManager");
}
return null;
} catch (Exception e) {
throw new UnsupportedOperationException(
"clientBuilder.sslSocketFactory(SSLSocketFactory) not supported on Conscrypt", e);
}
}
@Override public void configureTlsExtensions(
SSLSocket sslSocket, String hostname, List protocols) {
if (Conscrypt.isConscrypt(sslSocket)) {
// Enable SNI and session tickets.
if (hostname != null) {
Conscrypt.setUseSessionTickets(sslSocket, true);
Conscrypt.setHostname(sslSocket, hostname);
}
// Enable ALPN.
List names = Platform.alpnProtocolNames(protocols);
Conscrypt.setApplicationProtocols(sslSocket, names.toArray(new String[0]));
} else {
super.configureTlsExtensions(sslSocket, hostname, protocols);
}
}
@Override public @Nullable String getSelectedProtocol(SSLSocket sslSocket) {
if (Conscrypt.isConscrypt(sslSocket)) {
return Conscrypt.getApplicationProtocol(sslSocket);
} else {
return super.getSelectedProtocol(sslSocket);
}
}
@Override public SSLContext getSSLContext() {
try {
return SSLContext.getInstance("TLSv1.3", getProvider());
} catch (NoSuchAlgorithmException e) {
try {
// Allow for Conscrypt 1.2
return SSLContext.getInstance("TLS", getProvider());
} catch (NoSuchAlgorithmException e2) {
throw new IllegalStateException("No TLS provider", e);
}
}
}
public static ConscryptPlatform buildIfSupported() {
try {
// Trigger an early exception over a fatal error, prefer a RuntimeException over Error.
Class.forName("org.conscrypt.Conscrypt");
if (!Conscrypt.isAvailable()) {
return null;
}
return new ConscryptPlatform();
} catch (ClassNotFoundException e) {
return null;
}
}
@Override
public void configureSslSocketFactory(SSLSocketFactory socketFactory) {
if (Conscrypt.isConscrypt(socketFactory)) {
Conscrypt.setUseEngineSocket(socketFactory, true);
}
}
}