adapters/etsi-sol003-adapter/etsi-sol003-lcm/etsi-sol003-lcm-adapter/src/main/java/org/onap/so/adapters/etsisol003adapter/lcm/extclients/vnfm/VnfmServiceProviderConfiguration.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2019 Nordix Foundation.
   4  * ================================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  * SPDX-License-Identifier: Apache-2.0
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm;
  22
  23 import static org.onap.so.client.RestTemplateConfig.CONFIGURABLE_REST_TEMPLATE;
  24 import java.io.IOException;
  25 import java.security.KeyManagementException;
  26 import java.security.KeyStore;
  27 import java.security.KeyStoreException;
  28 import java.security.NoSuchAlgorithmException;
  29 import java.security.UnrecoverableKeyException;
  30 import java.security.cert.CertificateException;
  31 import java.util.Map;
  32 import java.util.UUID;
  33 import java.util.concurrent.ConcurrentHashMap;
  34 import javax.net.ssl.SSLContext;
  35 import org.apache.commons.lang3.StringUtils;
  36 import org.apache.http.client.HttpClient;
  37 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
  38 import org.apache.http.impl.client.HttpClients;
  39 import org.apache.http.ssl.SSLContextBuilder;
  40 import org.onap.aai.domain.yang.EsrSystemInfo;
  41 import org.onap.aai.domain.yang.EsrVnfm;
  42 import org.onap.so.adapters.etsi.sol003.adapter.common.configuration.AbstractServiceProviderConfiguration;
  43 import org.onap.so.adapters.etsisol003adapter.lcm.v1.JSON;
  44 import org.onap.so.configuration.rest.BasicHttpHeadersProvider;
  45 import org.onap.so.rest.service.HttpRestServiceProvider;
  46 import org.onap.so.rest.service.HttpRestServiceProviderImpl;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49 import org.springframework.beans.factory.annotation.Autowired;
  50 import org.springframework.beans.factory.annotation.Qualifier;
  51 import org.springframework.beans.factory.annotation.Value;
  52 import org.springframework.context.annotation.Configuration;
  53 import org.springframework.core.io.Resource;
  54 import org.springframework.http.client.BufferingClientHttpRequestFactory;
  55 import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
  56 import org.springframework.security.oauth2.client.OAuth2RestTemplate;
  57 import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsResourceDetails;
  58 import org.springframework.web.client.RestTemplate;
  59 import com.google.gson.Gson;
  60
  61 /**
  62  * Configures the HttpRestServiceProvider for REST call to a VNFM.
  63  */
  64 @Configuration
  65 public class VnfmServiceProviderConfiguration extends AbstractServiceProviderConfiguration {
  66
  67     private static final Logger logger = LoggerFactory.getLogger(VnfmServiceProviderConfiguration.class);
  68     private final Map<String, HttpRestServiceProvider> mapOfVnfmIdToHttpRestServiceProvider = new ConcurrentHashMap<>();
  69
  70     @Value("${http.client.ssl.trust-store:#{null}}")
  71     private Resource trustStore;
  72     @Value("${http.client.ssl.trust-store-password:#{null}}")
  73     private String trustStorePassword;
  74
  75     @Value("${server.ssl.key-store:#{null}}")
  76     private Resource keyStoreResource;
  77     @Value("${server.ssl.key--store-password:#{null}}")
  78     private String keyStorePassword;
  79
  80     /**
  81      * This property is only intended to be temporary until the AAI schema is updated to support setting the endpoint
  82      */
  83     @Value("${vnfmadapter.temp.vnfm.oauth.endpoint:#{null}}")
  84     private String oauthEndpoint;
  85
  86     @Qualifier(CONFIGURABLE_REST_TEMPLATE)
  87     @Autowired
  88     private RestTemplate defaultRestTemplate;
  89
  90     public HttpRestServiceProvider getHttpRestServiceProvider(final EsrVnfm vnfm) {
  91         if (!mapOfVnfmIdToHttpRestServiceProvider.containsKey(vnfm.getVnfmId())) {
  92             mapOfVnfmIdToHttpRestServiceProvider.put(vnfm.getVnfmId(), createHttpRestServiceProvider(vnfm));
  93         }
  94         return mapOfVnfmIdToHttpRestServiceProvider.get(vnfm.getVnfmId());
  95     }
  96
  97     private HttpRestServiceProvider createHttpRestServiceProvider(final EsrVnfm vnfm) {
  98         final RestTemplate restTemplate = createRestTemplate(vnfm);
  99         setGsonMessageConverter(restTemplate);
 100         if (trustStore != null) {
 101             setTrustStore(restTemplate);
 102         }
 103         return new HttpRestServiceProviderImpl(restTemplate, new BasicHttpHeadersProvider().getHttpHeaders());
 104     }
 105
 106     private RestTemplate createRestTemplate(final EsrVnfm vnfm) {
 107         if (vnfm != null) {
 108             for (final EsrSystemInfo esrSystemInfo : vnfm.getEsrSystemInfoList().getEsrSystemInfo()) {
 109                 if (!StringUtils.isEmpty(esrSystemInfo.getUserName())
 110                         && !StringUtils.isEmpty(esrSystemInfo.getPassword())) {
 111                     return createOAuth2RestTemplate(esrSystemInfo);
 112                 }
 113             }
 114         }
 115         return defaultRestTemplate;
 116     }
 117
 118     private OAuth2RestTemplate createOAuth2RestTemplate(final EsrSystemInfo esrSystemInfo) {
 119         logger.debug("Getting OAuth2RestTemplate ...");
 120         final ClientCredentialsResourceDetails resourceDetails = new ClientCredentialsResourceDetails();
 121         resourceDetails.setId(UUID.randomUUID().toString());
 122         resourceDetails.setClientId(esrSystemInfo.getUserName());
 123         resourceDetails.setClientSecret(esrSystemInfo.getPassword());
 124         resourceDetails.setAccessTokenUri(
 125                 oauthEndpoint == null ? esrSystemInfo.getServiceUrl().replace("vnflcm/v1", "oauth/token")
 126                         : oauthEndpoint);
 127         resourceDetails.setGrantType("client_credentials");
 128         return new OAuth2RestTemplate(resourceDetails);
 129     }
 130
 131     private void setTrustStore(final RestTemplate restTemplate) {
 132         SSLContext sslContext;
 133         try {
 134             if (keyStoreResource != null) {
 135                 final KeyStore keystore = KeyStore.getInstance("pkcs12");
 136                 keystore.load(keyStoreResource.getInputStream(), keyStorePassword.toCharArray());
 137                 sslContext =
 138                         new SSLContextBuilder().loadTrustMaterial(trustStore.getURL(), trustStorePassword.toCharArray())
 139                                 .loadKeyMaterial(keystore, keyStorePassword.toCharArray()).build();
 140             } else {
 141                 sslContext = new SSLContextBuilder()
 142                         .loadTrustMaterial(trustStore.getURL(), trustStorePassword.toCharArray()).build();
 143             }
 144             logger.info("Setting truststore: {}", trustStore.getURL());
 145             final SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(sslContext);
 146             final HttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).build();
 147             final HttpComponentsClientHttpRequestFactory factory =
 148                     new HttpComponentsClientHttpRequestFactory(httpClient);
 149             restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(factory));
 150         } catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException | CertificateException
 151                 | IOException | UnrecoverableKeyException exception) {
 152             logger.error("Error reading truststore, TLS connection to VNFM will fail.", exception);
 153         }
 154     }
 155
 156     @Override
 157     protected Gson getGson() {
 158         return new JSON().getGson();
 159     }
 160
 161 }