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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 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.pnfsimulator.simulator.client.utils.ssl;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.TrustAllStrategy;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContextBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.SSLContext;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
public enum SslSupportLevel {
NONE {
public HttpClient getClient(RequestConfig requestConfig) {
LOGGER.info("<!-----IN SslSupportLevel.NONE, Creating BasicHttpClient for http protocol----!>");
return HttpClientBuilder
.create()
.setDefaultRequestConfig(requestConfig)
.build();
}
},
ALWAYS_TRUST {
public HttpClient getClient(RequestConfig requestConfig) {
LoggerFactory.getLogger(SslSupportLevel.class).info("<!-----IN SslSupportLevel.ALWAYS_TRUST, Creating client with SSL support for https protocol----!>");
HttpClient client;
try {
SSLContext alwaysTrustSslContext = SSLContextBuilder.create().loadTrustMaterial(TRUST_STRATEGY_ALWAYS).build();
client = HttpClients.custom()
.setSSLContext(alwaysTrustSslContext)
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.setDefaultRequestConfig(requestConfig)
.build();
} catch (NoSuchAlgorithmException | KeyStoreException | KeyManagementException e) {
LOGGER.error("Could not initialize client due to SSL exception: {}. Default client without SSL support will be used instead.\nCause: {}", e.getMessage(), e.getCause());
client = NONE.getClient(requestConfig);
}
return client;
}
};
private static final Logger LOGGER = LoggerFactory.getLogger(SslSupportLevel.class);
private static final TrustStrategy TRUST_STRATEGY_ALWAYS = new TrustAllStrategy();
public static SslSupportLevel getSupportLevelBasedOnProtocol(String url) throws MalformedURLException {
return "https".equals(new URL(url).getProtocol()) ? SslSupportLevel.ALWAYS_TRUST : SslSupportLevel.NONE;
}
public abstract HttpClient getClient(RequestConfig requestConfig);
}
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