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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA Intellectual Property. 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.dcaegen2.services.prh.service;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.RESPONSE_CODE;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.SERVICE_NAME;
import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication;
import io.netty.handler.ssl.SslContext;
import java.util.Map;
import javax.net.ssl.SSLException;
import org.onap.dcaegen2.services.prh.config.AaiClientConfiguration;
import org.onap.dcaegen2.services.prh.ssl.SslFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.http.client.reactive.ClientHttpConnector;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
import reactor.netty.http.client.HttpClient;
public class AaiReactiveWebClientFactory {
private static final Logger LOGGER = LoggerFactory.getLogger(AaiReactiveWebClientFactory.class);
private final String aaiUserName;
private final String aaiUserPassword;
private final Map<String, String> aaiHeaders;
private final Boolean enableAaiCertAuth;
private final String trustStorePath;
private final String trustStorePasswordPath;
private final String keyStorePath;
private final String keyStorePasswordPath;
private final SslFactory sslFactory;
/**
* Creating AaiReactiveWebClientFactory.
*
* @param configuration - configuration object
* @param sslFactory - factory for ssl setup
*/
public AaiReactiveWebClientFactory(SslFactory sslFactory, AaiClientConfiguration configuration) {
this.aaiUserName = configuration.aaiUserName();
this.aaiUserPassword = configuration.aaiUserPassword();
this.aaiHeaders = configuration.aaiHeaders();
this.trustStorePath = configuration.trustStorePath();
this.trustStorePasswordPath = configuration.trustStorePasswordPath();
this.keyStorePath = configuration.keyStorePath();
this.keyStorePasswordPath = configuration.keyStorePasswordPath();
this.enableAaiCertAuth = configuration.enableAaiCertAuth();
this.sslFactory = sslFactory;
}
/**
* Construct Reactive WebClient with appropriate settings.
*
* @return WebClient
*/
public WebClient build() throws SSLException {
LOGGER.debug("Setting ssl context");
SslContext sslContext = createSslContext();
ClientHttpConnector reactorClientHttpConnector = new ReactorClientHttpConnector(
HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)));
return WebClient.builder()
.clientConnector(reactorClientHttpConnector)
.defaultHeaders(httpHeaders -> httpHeaders.setAll(aaiHeaders))
.filter(basicAuthentication(aaiUserName, aaiUserPassword))
.filter(logRequest())
.filter(logResponse())
.build();
}
private SslContext createSslContext() throws SSLException {
if (enableAaiCertAuth) {
return sslFactory.createSecureContext(
keyStorePath,
keyStorePasswordPath,
trustStorePath,
trustStorePasswordPath
);
}
return sslFactory.createInsecureContext();
}
private ExchangeFilterFunction logRequest() {
return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
MDC.put(SERVICE_NAME, String.valueOf(clientRequest.url()));
LOGGER.info("Request: {} {}", clientRequest.method(), clientRequest.url());
clientRequest.headers()
.forEach((name, values) -> values.forEach(value -> LOGGER.info("{}={}", name, value)));
MDC.remove(SERVICE_NAME);
return Mono.just(clientRequest);
});
}
private ExchangeFilterFunction logResponse() {
return ExchangeFilterFunction.ofResponseProcessor(clientResponse -> {
MDC.put(RESPONSE_CODE, String.valueOf(clientResponse.statusCode()));
LOGGER.info("Response Status {}", clientResponse.statusCode());
MDC.remove(RESPONSE_CODE);
return Mono.just(clientResponse);
});
}
}
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