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/*-
* ============LICENSE_START=======================================================
* sdc-distribution-client
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Modifications copyright (C) 2020 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.sdc.http;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.Key;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.ssl.SSLContexts;
import org.onap.sdc.api.consumer.IConfiguration;
import org.onap.sdc.utils.Pair;
public class HttpClientFactory {
private static final int AUTHORIZATION_SCOPE_PLAIN_PORT = 80;
private static final int AUTHORIZATION_SCOPE_PORT = 443;
private static final KeyStore DEFAULT_INIT_KEY_STORE_VALUE = null;
private static final String TLS = "TLSv1.2";
static final String HTTP = "http://";
static final String HTTPS = "https://";
private final IConfiguration configuration;
public HttpClientFactory(IConfiguration configuration) {
this.configuration = configuration;
}
public Pair<String, CloseableHttpClient> createInstance() {
boolean isHttpsRequired = configuration.isUseHttpsWithSDC();
Pair<String, CloseableHttpClient> httpClientPair;
if (isHttpsRequired) {
httpClientPair = createHttpsClient(configuration);
} else {
httpClientPair = createHttpClient(configuration);
}
return httpClientPair;
}
private Pair<String, CloseableHttpClient> createHttpsClient(IConfiguration configuration) {
return new Pair<>(HTTPS, initSSLMtls(configuration));
}
private Pair<String, CloseableHttpClient> createHttpClient(IConfiguration configuration) {
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(new AuthScope("localhost", AUTHORIZATION_SCOPE_PLAIN_PORT),
new UsernamePasswordCredentials(configuration.getUser(), configuration.getPassword()));
return new Pair<>(HTTP, HttpClientBuilder.create().setDefaultCredentialsProvider(credsProvider)
.setProxy(getHttpProxyHost()).build());
}
private CloseableHttpClient initSSLMtls(IConfiguration configuration) {
try (FileInputStream kis = new FileInputStream(configuration.getKeyStorePath());
FileInputStream tis = new FileInputStream(configuration.getTrustStorePath())) {
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(new AuthScope("localhost", AUTHORIZATION_SCOPE_PORT),
new UsernamePasswordCredentials(configuration.getUser(), configuration.getPassword()));
final KeyStore ks = KeyStore.getInstance("JKS");
ks.load(kis, configuration.getKeyStorePassword().toCharArray());
final KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(ks, configuration.getKeyStorePassword().toCharArray());
final KeyStore ts = KeyStore.getInstance("JKS");
ts.load(tis, configuration.getTrustStorePassword().toCharArray());
final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(ts);
final SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(ts, new TrustSelfSignedStrategy()).loadKeyMaterial(ks, configuration.getKeyStorePassword().toCharArray()).build();
HostnameVerifier hostnameVerifier = (hostname, session) -> hostname.equalsIgnoreCase(session.getPeerHost());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new String[] { TLS }, null,
hostnameVerifier);
return HttpClientBuilder.create().setDefaultCredentialsProvider(credsProvider).setProxy(getHttpsProxyHost())
.setSSLSocketFactory(sslsf).build();
} catch (Exception e) {
throw new HttpSdcClientException("Failed to create https client", e);
}
}
private HttpHost getHttpProxyHost() {
HttpHost proxyHost = null;
if (configuration.isUseSystemProxy() && System.getProperty("http.proxyHost") != null
&& System.getProperty("http.proxyPort") != null) {
proxyHost = new HttpHost(System.getProperty("http.proxyHost"),
Integer.valueOf(System.getProperty("http.proxyPort")));
} else if (configuration.getHttpProxyHost() != null && configuration.getHttpProxyPort() != 0) {
proxyHost = new HttpHost(configuration.getHttpProxyHost(), configuration.getHttpProxyPort());
}
return proxyHost;
}
private HttpHost getHttpsProxyHost() {
HttpHost proxyHost = null;
if (configuration.isUseSystemProxy() && System.getProperty("https.proxyHost") != null
&& System.getProperty("https.proxyPort") != null) {
proxyHost = new HttpHost(System.getProperty("https.proxyHost"),
Integer.valueOf(System.getProperty("https.proxyPort")));
} else if (configuration.getHttpsProxyHost() != null && configuration.getHttpsProxyPort() != 0) {
proxyHost = new HttpHost(configuration.getHttpsProxyHost(), configuration.getHttpsProxyPort());
}
return proxyHost;
}
}
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