1 files changed, 230 insertions, 0 deletions
diff --git a/src/main/java/org/onap/aai/modelloader/restclient/HttpsBabelServiceClient.java b/src/main/java/org/onap/aai/modelloader/restclient/HttpsBabelServiceClient.java
new file mode 100644
index 0000000..f07d0d3
--- /dev/null
+++ b/src/main/java/org/onap/aai/modelloader/restclient/HttpsBabelServiceClient.java
@@ -0,0 +1,230 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 European Software Marketing Ltd.
+ * ================================================================================
+ * 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.aai.modelloader.restclient;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import com.google.json.JsonSanitizer;
+import com.sun.jersey.api.client.Client; // NOSONAR
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+import com.sun.jersey.api.client.config.DefaultClientConfig;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+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 java.security.cert.X509Certificate;
+import java.util.Base64;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.KeyManagerFactory;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.TrustManagerFactory;
+import javax.net.ssl.X509TrustManager;
+import javax.ws.rs.core.Response;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.onap.aai.babel.service.data.BabelArtifact;
+import org.onap.aai.cl.api.Logger;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.modelloader.config.ModelLoaderConfig;
+import org.onap.aai.modelloader.service.ModelLoaderMsgs;
+
+/**
+ * HTTPS Client for interfacing with Babel.
+ *
+ */
+public class HttpsBabelServiceClient implements BabelServiceClient {
+
+    private static final Logger logger = LoggerFactory.getInstance().getLogger(HttpsBabelServiceClient.class);
+
+    private static final String SSL_PROTOCOL = "TLS";
+    private static final String KEYSTORE_ALGORITHM = "SunX509";
+    private static final String KEYSTORE_TYPE = "PKCS12";
+
+    private final ModelLoaderConfig config;
+    private final Client client;
+
+    /**
+     * @param config
+     * @throws NoSuchAlgorithmException
+     * @throws KeyStoreException
+     * @throws CertificateException
+     * @throws IOException
+     * @throws UnrecoverableKeyException
+     * @throws KeyManagementException
+     * @throws BabelServiceClientException
+     */
+    public HttpsBabelServiceClient(ModelLoaderConfig config)
+            throws NoSuchAlgorithmException, KeyStoreException, CertificateException, IOException,
+            UnrecoverableKeyException, KeyManagementException, BabelServiceClientException {
+        this.config = config;
+
+        logger.debug(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Creating Babel Service client");
+
+        SSLContext ctx = SSLContext.getInstance(SSL_PROTOCOL);
+        KeyManagerFactory kmf = KeyManagerFactory.getInstance(KEYSTORE_ALGORITHM);
+        KeyStore keyStore = KeyStore.getInstance(KEYSTORE_TYPE);
+
+        String clientCertPassword = config.getBabelKeyStorePassword();
+
+        char[] pwd = null;
+        if (clientCertPassword != null) {
+            pwd = clientCertPassword.toCharArray();
+        }
+
+        TrustManager[] trustManagers = getTrustManagers();
+
+        String clientCertFileName = config.getBabelKeyStorePath();
+        if (clientCertFileName == null) {
+            ctx.init(null, trustManagers, null);
+        } else {
+            InputStream fin = Files.newInputStream(Paths.get(clientCertFileName));
+            keyStore.load(fin, pwd);
+            kmf.init(keyStore, pwd);
+            ctx.init(kmf.getKeyManagers(), trustManagers, null);
+        }
+
+        logger.debug(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Initialised context");
+
+        HttpsURLConnection.setDefaultSSLSocketFactory(ctx.getSocketFactory());
+        HttpsURLConnection.setDefaultHostnameVerifier((host, session) -> true);
+
+        client = Client.create(new DefaultClientConfig());
+
+        logger.debug(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Jersey client created");
+    }
+
+    private TrustManager[] getTrustManagers() throws NoSuchAlgorithmException, KeyStoreException, CertificateException,
+            IOException, BabelServiceClientException {
+        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+        // Using null here initializes the TMF with the default trust store.
+        tmf.init((KeyStore) null);
+
+        // Create a new Trust Manager from the local trust store.
+        String trustStoreFile = config.getBabelTrustStorePath();
+        if (trustStoreFile == null) {
+            throw new BabelServiceClientException("No Babel trust store defined");
+        }
+        try (InputStream myKeys = Files.newInputStream(Paths.get(trustStoreFile))) {
+            KeyStore myTrustStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            myTrustStore.load(myKeys, config.getBabelTrustStorePassword().toCharArray());
+            tmf.init(myTrustStore);
+        }
+        X509TrustManager localTm = findX509TrustManager(tmf);
+
+        // Create a custom trust manager that wraps both our trust store and the default.
+        final X509TrustManager finalLocalTm = localTm;
+
+        // Find the default trust manager.
+        final X509TrustManager defaultTrustManager = findX509TrustManager(tmf);
+
+        return new TrustManager[] {new X509TrustManager() {
+            @Override
+            public X509Certificate[] getAcceptedIssuers() {
+                return defaultTrustManager.getAcceptedIssuers();
+            }
+
+            @Override
+            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+                try {
+                    finalLocalTm.checkServerTrusted(chain, authType);
+                } catch (CertificateException e) {
+                    defaultTrustManager.checkServerTrusted(chain, authType);
+                }
+            }
+
+            @Override
+            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+                defaultTrustManager.checkClientTrusted(chain, authType);
+            }
+        }};
+    }
+
+    private X509TrustManager findX509TrustManager(TrustManagerFactory tmf) {
+        X509TrustManager trustManager = null;
+        for (TrustManager tm : tmf.getTrustManagers()) {
+            if (tm instanceof X509TrustManager) {
+                trustManager = (X509TrustManager) tm;
+                break;
+            }
+        }
+        return trustManager;
+    }
+
+    /**
+     * @param artifactPayload
+     * @param artifactName
+     * @param artifactVersion
+     * @param transactionId
+     * @return
+     * @throws BabelServiceClientException
+     * @throws JSONException
+     */
+    @Override
+    public List<BabelArtifact> postArtifact(byte[] artifactPayload, String artifactName, String artifactVersion,
+            String transactionId) throws BabelServiceClientException {
+        Objects.requireNonNull(artifactPayload);
+
+        String encodedPayload = Base64.getEncoder().encodeToString(artifactPayload);
+
+        JSONObject obj = new JSONObject();
+        try {
+            obj.put("csar", encodedPayload);
+            obj.put("artifactVersion", artifactVersion);
+            obj.put("artifactName", artifactName);
+        } catch (JSONException ex) {
+            throw new BabelServiceClientException(ex);
+        }
+
+        if (logger.isInfoEnabled()) {
+            logger.info(ModelLoaderMsgs.BABEL_REST_REQUEST_PAYLOAD, " Artifact Name: " + artifactName
+                    + " Artifact version: " + artifactVersion + " Artifact payload: " + encodedPayload);
+        }
+
+        WebResource webResource = client.resource(config.getBabelBaseUrl() + config.getBabelGenerateArtifactsUrl());
+        ClientResponse response = webResource.type("application/json")
+                .header(AaiRestClient.HEADER_TRANS_ID, Collections.singletonList(transactionId))
+                .header(AaiRestClient.HEADER_FROM_APP_ID, Collections.singletonList(AaiRestClient.ML_APP_NAME))
+                .post(ClientResponse.class, obj.toString());
+        String sanitizedJson = JsonSanitizer.sanitize(response.getEntity(String.class));
+
+        if (logger.isDebugEnabled()) {
+            logger.debug(ModelLoaderMsgs.DISTRIBUTION_EVENT,
+                    "Babel response " + response.getStatus() + " " + sanitizedJson);
+        }
+
+        if (response.getStatus() != Response.Status.OK.getStatusCode()) {
+            throw new BabelServiceClientException(sanitizedJson);
+        }
+
+        return new Gson().fromJson(sanitizedJson, new TypeToken<List<BabelArtifact>>() {}.getType());
+    }
+}