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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.adapters.etsisol003adapter.pkgm.extclients.etsicatalog;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.util.concurrent.TimeUnit;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import org.apache.http.client.config.RequestConfig;
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.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.ssl.SSLContextBuilder;
import org.onap.logging.filter.spring.SpringClientPayloadFilter;
import org.onap.so.adapters.etsi.sol003.adapter.common.configuration.AbstractServiceProviderConfiguration;
import org.onap.so.configuration.rest.BasicHttpHeadersProvider;
import org.onap.so.configuration.rest.HttpClientConnectionConfiguration;
import org.onap.so.logging.jaxrs.filter.SOSpringClientFilter;
import org.onap.so.rest.service.HttpRestServiceProvider;
import org.onap.so.rest.service.HttpRestServiceProviderImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.Resource;
import org.springframework.http.client.BufferingClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
import com.google.gson.Gson;
/**
* Configures the HttpRestServiceProvider to make REST calls to the ETSI Catalog Manager
*
* @author gareth.roper@est.tech
*/
@Configuration
public class EtsiCatalogServiceProviderConfiguration extends AbstractServiceProviderConfiguration {
public static final String ETSI_CATALOG_REST_TEMPLATE_BEAN = "etsiCatalogRestTemplate";
public static final String ETSI_CATALOG_SERVICE_PROVIDER_BEAN = "etsiCatalogServiceProvider";
private final static Logger LOGGER = LoggerFactory.getLogger(EtsiCatalogServiceProviderConfiguration.class);
private final HttpClientConnectionConfiguration clientConnectionConfiguration;
@Value("${etsi-catalog-manager.http.client.ssl.trust-store:#{null}}")
private Resource trustStore;
@Value("${etsi-catalog-manager.http.client.ssl.trust-store-password:#{null}}")
private String trustStorePassword;
@Autowired
public EtsiCatalogServiceProviderConfiguration(
final HttpClientConnectionConfiguration clientConnectionConfiguration) {
this.clientConnectionConfiguration = clientConnectionConfiguration;
}
@Bean
@Qualifier(ETSI_CATALOG_REST_TEMPLATE_BEAN)
public RestTemplate etsiCatalogRestTemplate() {
final RestTemplate restTemplate = new RestTemplate();
restTemplate.getInterceptors().add(new SOSpringClientFilter());
restTemplate.getInterceptors().add((new SpringClientPayloadFilter()));
return restTemplate;
}
@Bean
@Qualifier(ETSI_CATALOG_SERVICE_PROVIDER_BEAN)
public HttpRestServiceProvider etsiCatalogHttpRestServiceProvider(
@Qualifier(ETSI_CATALOG_REST_TEMPLATE_BEAN) final RestTemplate restTemplate) {
setGsonMessageConverter(restTemplate);
final HttpClientBuilder httpClientBuilder = getHttpClientBuilder();
if (trustStore != null) {
try {
LOGGER.debug("Setting up HttpComponentsClientHttpRequestFactory with SSL Context");
LOGGER.debug("Setting client trust-store: {}", trustStore.getURL());
LOGGER.debug("Creating SSLConnectionSocketFactory with AllowAllHostsVerifier ... ");
final SSLContext sslContext = new SSLContextBuilder()
.loadTrustMaterial(trustStore.getURL(), trustStorePassword.toCharArray()).build();
final SSLConnectionSocketFactory sslConnectionSocketFactory =
new SSLConnectionSocketFactory(sslContext, AllowAllHostsVerifier.INSTANCE);
httpClientBuilder.setSSLSocketFactory(sslConnectionSocketFactory);
final Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder
.<ConnectionSocketFactory>create().register("http", PlainConnectionSocketFactory.INSTANCE)
.register("https", sslConnectionSocketFactory).build();
httpClientBuilder.setConnectionManager(getConnectionManager(socketFactoryRegistry));
} catch (final KeyManagementException | NoSuchAlgorithmException | KeyStoreException | CertificateException
| IOException exception) {
LOGGER.error("Error reading truststore, TLS connection will fail.", exception);
}
} else {
LOGGER.debug("Setting connection manager without SSL ConnectionSocketFactory ...");
httpClientBuilder.setConnectionManager(getConnectionManager());
}
final HttpComponentsClientHttpRequestFactory factory =
new HttpComponentsClientHttpRequestFactory(httpClientBuilder.build());
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(factory));
return new HttpRestServiceProviderImpl(restTemplate, new BasicHttpHeadersProvider().getHttpHeaders());
}
private PoolingHttpClientConnectionManager getConnectionManager(
final Registry<ConnectionSocketFactory> socketFactoryRegistry) {
return new PoolingHttpClientConnectionManager(socketFactoryRegistry, null, null, null,
clientConnectionConfiguration.getTimeToLiveInMins(), TimeUnit.MINUTES);
}
private PoolingHttpClientConnectionManager getConnectionManager() {
return new PoolingHttpClientConnectionManager(clientConnectionConfiguration.getTimeToLiveInMins(),
TimeUnit.MINUTES);
}
private HttpClientBuilder getHttpClientBuilder() {
return HttpClientBuilder.create().setMaxConnPerRoute(clientConnectionConfiguration.getMaxConnectionsPerRoute())
.setMaxConnTotal(clientConnectionConfiguration.getMaxConnections())
.setDefaultRequestConfig(getRequestConfig());
}
private RequestConfig getRequestConfig() {
return RequestConfig.custom().setSocketTimeout(clientConnectionConfiguration.getSocketTimeOutInMiliSeconds())
.setConnectTimeout(clientConnectionConfiguration.getConnectionTimeOutInMilliSeconds()).build();
}
private static final class AllowAllHostsVerifier implements HostnameVerifier {
private static final AllowAllHostsVerifier INSTANCE = new AllowAllHostsVerifier();
@Override
public boolean verify(final String hostname, final SSLSession session) {
LOGGER.debug("Skipping hostname verification ...");
return true;
}
}
@Override
protected Gson getGson() {
return new JSON().getGson();
}
}
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