/
GoogleApacheHttpTransport.java
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/
GoogleApacheHttpTransport.java
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/*
* Copyright 2020 Google LLC
*
* 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.google.api.client.googleapis.apache.v2;
import com.google.api.client.googleapis.GoogleUtils;
import com.google.api.client.googleapis.mtls.MtlsProvider;
import com.google.api.client.googleapis.mtls.MtlsUtils;
import com.google.api.client.googleapis.util.Utils;
import com.google.api.client.http.apache.v2.ApacheHttpTransport;
import com.google.api.client.util.Beta;
import com.google.api.client.util.SslUtils;
import com.google.common.annotations.VisibleForTesting;
import java.io.IOException;
import java.net.ProxySelector;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.util.concurrent.TimeUnit;
import javax.net.ssl.SSLContext;
import org.apache.http.client.HttpClient;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.LayeredConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.impl.conn.SystemDefaultRoutePlanner;
/**
* Utilities for Google APIs based on {@link ApacheHttpTransport}.
*
* @since 1.31
*/
public final class GoogleApacheHttpTransport {
/**
* Returns a new instance of {@link ApacheHttpTransport} that uses {@link
* GoogleUtils#getCertificateTrustStore()} for the trusted certificates. If
* `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is set to "true", and the default
* client certificate key store from {@link Utils#loadDefaultMtlsKeyStore()} is not null, then the
* transport uses the default client certificate and is mutual TLS.
*/
public static ApacheHttpTransport newTrustedTransport()
throws GeneralSecurityException, IOException {
return newTrustedTransport(MtlsUtils.getDefaultMtlsProvider());
}
/**
* {@link Beta} <br>
* Returns a new instance of {@link ApacheHttpTransport} that uses {@link
* GoogleUtils#getCertificateTrustStore()} for the trusted certificates. mtlsProvider can be used
* to configure mutual TLS for the transport.
*
* @param mtlsProvider MtlsProvider to configure mutual TLS for the transport
*/
@Beta
public static ApacheHttpTransport newTrustedTransport(MtlsProvider mtlsProvider)
throws GeneralSecurityException, IOException {
SocketFactoryRegistryHandler handler = new SocketFactoryRegistryHandler(mtlsProvider);
PoolingHttpClientConnectionManager connectionManager =
new PoolingHttpClientConnectionManager(
handler.getSocketFactoryRegistry(), null, null, null, -1, TimeUnit.MILLISECONDS);
// Disable the stale connection check (previously configured in the
// HttpConnectionParams
connectionManager.setValidateAfterInactivity(-1);
HttpClient client =
HttpClientBuilder.create()
.useSystemProperties()
.setMaxConnTotal(200)
.setMaxConnPerRoute(20)
.setRoutePlanner(new SystemDefaultRoutePlanner(ProxySelector.getDefault()))
.setConnectionManager(connectionManager)
.disableRedirectHandling()
.disableAutomaticRetries()
.build();
return new ApacheHttpTransport(client, handler.isMtls());
}
@VisibleForTesting
static class SocketFactoryRegistryHandler {
private final Registry<ConnectionSocketFactory> socketFactoryRegistry;
private final boolean isMtls;
public SocketFactoryRegistryHandler(MtlsProvider mtlsProvider)
throws GeneralSecurityException, IOException {
KeyStore mtlsKeyStore = null;
String mtlsKeyStorePassword = null;
if (mtlsProvider.useMtlsClientCertificate()) {
mtlsKeyStore = mtlsProvider.getKeyStore();
mtlsKeyStorePassword = mtlsProvider.getKeyStorePassword();
}
// Use the included trust store
KeyStore trustStore = GoogleUtils.getCertificateTrustStore();
SSLContext sslContext = SslUtils.getTlsSslContext();
if (mtlsKeyStore != null && mtlsKeyStorePassword != null) {
this.isMtls = true;
SslUtils.initSslContext(
sslContext,
trustStore,
SslUtils.getPkixTrustManagerFactory(),
mtlsKeyStore,
mtlsKeyStorePassword,
SslUtils.getDefaultKeyManagerFactory());
} else {
this.isMtls = false;
SslUtils.initSslContext(sslContext, trustStore, SslUtils.getPkixTrustManagerFactory());
}
LayeredConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(sslContext);
this.socketFactoryRegistry =
RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", PlainConnectionSocketFactory.getSocketFactory())
.register("https", socketFactory)
.build();
}
public Registry<ConnectionSocketFactory> getSocketFactoryRegistry() {
return this.socketFactoryRegistry;
}
public boolean isMtls() {
return this.isMtls;
}
}
private GoogleApacheHttpTransport() {}
}