gerrit.onap Code Review - dcaegen2/services/sdk.git/blob

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * DCAEGEN2-SERVICES-SDK
   4  * ================================================================================
   5  * Copyright (C) 2018 NOKIA Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service;
  22
  23 import io.netty.handler.ssl.SslContext;
  24 import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
  25
  26 import org.onap.dcaegen2.services.sdk.rest.services.ssl.SslFactory;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29 import org.slf4j.MDC;
  30 import org.springframework.http.client.reactive.ClientHttpConnector;
  31 import org.springframework.http.client.reactive.ReactorClientHttpConnector;
  32 import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
  33 import org.springframework.web.reactive.function.client.WebClient;
  34 import reactor.core.publisher.Mono;
  35 import reactor.netty.http.client.HttpClient;
  36
  37 import javax.net.ssl.SSLException;
  38 import java.util.Map;
  39
  40 import static org.onap.dcaegen2.services.sdk.rest.services.model.logging.MdcVariables.RESPONSE_CODE;
  41 import static org.onap.dcaegen2.services.sdk.rest.services.model.logging.MdcVariables.SERVICE_NAME;
  42 import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication;
  43
  44
  45 public class AaiReactiveWebClientFactory {
  46
  47     private static final Logger LOGGER = LoggerFactory.getLogger(AaiReactiveWebClientFactory.class);
  48
  49     private final String aaiUserName;
  50     private final String aaiUserPassword;
  51     private final Map<String, String> aaiHeaders;
  52     private final Boolean enableAaiCertAuth;
  53     private final String trustStorePath;
  54     private final String trustStorePasswordPath;
  55     private final String keyStorePath;
  56     private final String keyStorePasswordPath;
  57     private final SslFactory sslFactory;
  58
  59     /**
  60      * Creating AaiReactiveWebClientFactory.
  61      *
  62      * @param configuration - configuration object
  63      * @param sslFactory - factory for ssl setup
  64      */
  65     public AaiReactiveWebClientFactory(SslFactory sslFactory, AaiClientConfiguration configuration) {
  66         this.aaiUserName = configuration.aaiUserName();
  67         this.aaiUserPassword = configuration.aaiUserPassword();
  68         this.aaiHeaders = configuration.aaiHeaders();
  69         this.trustStorePath = configuration.trustStorePath();
  70         this.trustStorePasswordPath = configuration.trustStorePasswordPath();
  71         this.keyStorePath = configuration.keyStorePath();
  72         this.keyStorePasswordPath = configuration.keyStorePasswordPath();
  73         this.enableAaiCertAuth = configuration.enableAaiCertAuth();
  74         this.sslFactory = sslFactory;
  75     }
  76
  77     /**
  78      * Construct Reactive WebClient with appropriate settings.
  79      *
  80      * @return WebClient
  81      */
  82     public WebClient build() throws SSLException {
  83         LOGGER.debug("Setting ssl context");
  84
  85         SslContext sslContext = createSslContext();
  86
  87
  88         ClientHttpConnector reactorClientHttpConnector = new ReactorClientHttpConnector(
  89             HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)));
  90
  91         return WebClient.builder()
  92             .clientConnector(reactorClientHttpConnector)
  93             .defaultHeaders(httpHeaders -> httpHeaders.setAll(aaiHeaders))
  94             .filter(basicAuthentication(aaiUserName, aaiUserPassword))
  95             .filter(logRequest())
  96             .filter(logResponse())
  97             .build();
  98     }
  99
 100     private SslContext createSslContext() throws SSLException {
 101         if (enableAaiCertAuth) {
 102             return sslFactory.createSecureContext(
 103                 keyStorePath,
 104                 keyStorePasswordPath,
 105                 trustStorePath,
 106                 trustStorePasswordPath
 107             );
 108         }
 109         return sslFactory.createInsecureContext();
 110     }
 111
 112     private ExchangeFilterFunction logRequest() {
 113         return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
 114             MDC.put(SERVICE_NAME, String.valueOf(clientRequest.url()));
 115             LOGGER.info("Request: {} {}", clientRequest.method(), clientRequest.url());
 116             clientRequest.headers()
 117                 .forEach((name, values) -> values.forEach(value -> LOGGER.info("{}={}", name, value)));
 118             MDC.remove(SERVICE_NAME);
 119             return Mono.just(clientRequest);
 120         });
 121     }
 122
 123     private ExchangeFilterFunction logResponse() {
 124         return ExchangeFilterFunction.ofResponseProcessor(clientResponse -> {
 125             MDC.put(RESPONSE_CODE, String.valueOf(clientResponse.statusCode()));
 126             LOGGER.info("Response Status {}", clientResponse.statusCode());
 127             MDC.remove(RESPONSE_CODE);
 128             return Mono.just(clientResponse);
 129         });
 130     }
 131 }