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

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * PNF-REGISTRATION-HANDLER
   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.prh.service;
  22
  23 import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.RESPONSE_CODE;
  24 import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.SERVICE_NAME;
  25 import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication;
  26
  27 import io.netty.handler.ssl.SslContext;
  28 import java.util.Map;
  29 import javax.net.ssl.SSLException;
  30 import org.onap.dcaegen2.services.prh.config.AaiClientConfiguration;
  31 import org.onap.dcaegen2.services.prh.ssl.SslFactory;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34 import org.slf4j.MDC;
  35 import org.springframework.http.client.reactive.ClientHttpConnector;
  36 import org.springframework.http.client.reactive.ReactorClientHttpConnector;
  37 import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
  38 import org.springframework.web.reactive.function.client.WebClient;
  39 import reactor.core.publisher.Mono;
  40 import reactor.netty.http.client.HttpClient;
  41
  42
  43 public class AaiReactiveWebClientFactory {
  44
  45     private static final Logger LOGGER = LoggerFactory.getLogger(AaiReactiveWebClientFactory.class);
  46
  47     private final String aaiUserName;
  48     private final String aaiUserPassword;
  49     private final Map<String, String> aaiHeaders;
  50     private final Boolean enableAaiCertAuth;
  51     private final String trustStorePath;
  52     private final String trustStorePasswordPath;
  53     private final String keyStorePath;
  54     private final String keyStorePasswordPath;
  55     private final SslFactory sslFactory;
  56
  57     /**
  58      * Creating AaiReactiveWebClientFactory.
  59      *
  60      * @param configuration - configuration object
  61      * @param sslFactory - factory for ssl setup
  62      */
  63     public AaiReactiveWebClientFactory(SslFactory sslFactory, AaiClientConfiguration configuration) {
  64         this.aaiUserName = configuration.aaiUserName();
  65         this.aaiUserPassword = configuration.aaiUserPassword();
  66         this.aaiHeaders = configuration.aaiHeaders();
  67         this.trustStorePath = configuration.trustStorePath();
  68         this.trustStorePasswordPath = configuration.trustStorePasswordPath();
  69         this.keyStorePath = configuration.keyStorePath();
  70         this.keyStorePasswordPath = configuration.keyStorePasswordPath();
  71         this.enableAaiCertAuth = configuration.enableAaiCertAuth();
  72         this.sslFactory = sslFactory;
  73     }
  74
  75     /**
  76      * Construct Reactive WebClient with appropriate settings.
  77      *
  78      * @return WebClient
  79      */
  80     public WebClient build() throws SSLException {
  81         LOGGER.debug("Setting ssl context");
  82
  83         SslContext sslContext = createSslContext();
  84
  85         ClientHttpConnector reactorClientHttpConnector = new ReactorClientHttpConnector(
  86             HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)));
  87
  88         return WebClient.builder()
  89             .clientConnector(reactorClientHttpConnector)
  90             .defaultHeaders(httpHeaders -> httpHeaders.setAll(aaiHeaders))
  91             .filter(basicAuthentication(aaiUserName, aaiUserPassword))
  92             .filter(logRequest())
  93             .filter(logResponse())
  94             .build();
  95     }
  96
  97     private SslContext createSslContext() throws SSLException {
  98         if (enableAaiCertAuth) {
  99             return sslFactory.createSecureContext(
 100                 keyStorePath,
 101                 keyStorePasswordPath,
 102                 trustStorePath,
 103                 trustStorePasswordPath
 104             );
 105         }
 106         return sslFactory.createInsecureContext();
 107     }
 108
 109     private ExchangeFilterFunction logRequest() {
 110         return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
 111             MDC.put(SERVICE_NAME, String.valueOf(clientRequest.url()));
 112             LOGGER.info("Request: {} {}", clientRequest.method(), clientRequest.url());
 113             clientRequest.headers()
 114                 .forEach((name, values) -> values.forEach(value -> LOGGER.info("{}={}", name, value)));
 115             MDC.remove(SERVICE_NAME);
 116             return Mono.just(clientRequest);
 117         });
 118     }
 119
 120     private ExchangeFilterFunction logResponse() {
 121         return ExchangeFilterFunction.ofResponseProcessor(clientResponse -> {
 122             MDC.put(RESPONSE_CODE, String.valueOf(clientResponse.statusCode()));
 123             LOGGER.info("Response Status {}", clientResponse.statusCode());
 124             MDC.remove(RESPONSE_CODE);
 125             return Mono.just(clientResponse);
 126         });
 127     }
 128 }