VNFM adapter support two way TLS

Change-Id: Icdb57587c9070bcce405eeaea4275fea0af0533a
Issue-ID: SO-2190
Signed-off-by: MichaelMorris <michael.morris@est.tech>

1 files changed, 60 insertions, 0 deletions

diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskConfiguration.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskConfiguration.java
index f5bae2c82a..c3c0047fff 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskConfiguration.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/adapter/vnfm/tasks/VnfmAdapterCreateVnfTaskConfiguration.java
@@ -21,14 +21,32 @@
 package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks;
 
 import static org.onap.so.client.RestTemplateConfig.CONFIGURABLE_REST_TEMPLATE;
+import java.io.IOException;
+import java.security.KeyManagementException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+import javax.net.ssl.SSLContext;
+import org.apache.http.client.HttpClient;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
 import org.onap.so.configuration.rest.BasicHttpHeadersProvider;
 import org.onap.so.configuration.rest.HttpHeadersProvider;
 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;
 
 /**
@@ -40,13 +58,55 @@ import org.springframework.web.client.RestTemplate;
 @Configuration
 public class VnfmAdapterCreateVnfTaskConfiguration {
 
+    private static final Logger logger = LoggerFactory.getLogger(VnfmAdapterCreateVnfTaskConfiguration.class);
+
+    @Value("${rest.http.client.configuration.ssl.trustStore:#{null}}")
+    private Resource trustStore;
+
+    @Value("${rest.http.client.configuration.ssl.trustStorePassword:#{null}}")
+    private String trustStorePassword;
+
+    @Value("${rest.http.client.configuration.ssl.keyStore:#{null}}")
+    private Resource keyStoreResource;
+
+    @Value("${rest.http.client.configuration.ssl.keyStorePassword:#{null}}")
+    private String keyStorePassword;
+
     @Bean
     public HttpRestServiceProvider databaseHttpRestServiceProvider(
             @Qualifier(CONFIGURABLE_REST_TEMPLATE) @Autowired final RestTemplate restTemplate,
             @Autowired final VnfmBasicHttpConfigProvider etsiVnfmAdapter) {
+        if (trustStore != null) {
+            setTrustStore(restTemplate);
+        }
         return getHttpRestServiceProvider(restTemplate, new BasicHttpHeadersProvider(etsiVnfmAdapter.getAuth()));
     }
 
+    private void setTrustStore(final RestTemplate restTemplate) {
+        SSLContext sslContext;
+        try {
+            if (keyStoreResource != null) {
+                KeyStore keystore = KeyStore.getInstance("pkcs12");
+                keystore.load(keyStoreResource.getInputStream(), keyStorePassword.toCharArray());
+                sslContext =
+                        new SSLContextBuilder().loadTrustMaterial(trustStore.getURL(), trustStorePassword.toCharArray())
+                                .loadKeyMaterial(keystore, keyStorePassword.toCharArray()).build();
+            } else {
+                sslContext = new SSLContextBuilder()
+                        .loadTrustMaterial(trustStore.getURL(), trustStorePassword.toCharArray()).build();
+            }
+            logger.info("Setting truststore: {}", trustStore.getURL());
+            final SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(sslContext);
+            final HttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).build();
+            final HttpComponentsClientHttpRequestFactory factory =
+                    new HttpComponentsClientHttpRequestFactory(httpClient);
+            restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(factory));
+        } catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException | CertificateException
+                | IOException | UnrecoverableKeyException exception) {
+            logger.error("Error reading truststore, TLS connection to VNFM will fail.", exception);
+        }
+    }
+
     private HttpRestServiceProvider getHttpRestServiceProvider(final RestTemplate restTemplate,
             final HttpHeadersProvider httpHeadersProvider) {
         return new HttpRestServiceProviderImpl(restTemplate, httpHeadersProvider);