Proposal to remove OSGi dependencies from the CCSDK project

[ccsdk/distribution.git] / lighty / ccsdk-lighty-module / src / main / java / org / onap / ccsdk / distribution / lighty / AAAEncryptionServiceLightyImpl.java

diff --git a/lighty/ccsdk-lighty-module/src/main/java/org/onap/ccsdk/distribution/lighty/AAAEncryptionServiceLightyImpl.java b/lighty/ccsdk-lighty-module/src/main/java/org/onap/ccsdk/distribution/lighty/AAAEncryptionServiceLightyImpl.java
new file mode 100644 (file)
index 0000000..2610544
--- /dev/null
+++ b/lighty/ccsdk-lighty-module/src/main/java/org/onap/ccsdk/distribution/lighty/AAAEncryptionServiceLightyImpl.java
@@ -0,0 +1,116 @@
+/*
+ * ============LICENSE_START==========================================
+ * Copyright (c) 2019 PANTHEON.tech s.r.o.
+ * ===================================================================
+ * 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.ccsdk.distribution.lighty;
+
+import java.nio.charset.Charset;
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.xml.bind.DatatypeConverter;
+import org.onap.ccsdk.sli.core.dblib.DBLIBResourceProvider;
+import org.onap.ccsdk.sli.core.dblib.DBLIBResourceProviderLighty;
+import org.opendaylight.aaa.encrypt.AAAEncryptionService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Custom implementation of the {@link AAAEncryptionService}. Original class {@link DBLIBResourceProvider} was accessing
+ * instance of this interface via OGSi (BundleContext) and java reflection. The implementation of
+ * the {@link AAAEncryptionService} has to be injected via constructor into the lighty.io version of the class with
+ * removed OSGi dependency {@link DBLIBResourceProviderLighty}.
+ */
+public class AAAEncryptionServiceLightyImpl implements AAAEncryptionService {
+
+    private static final Logger LOG = LoggerFactory.getLogger(AAAEncryptionServiceLightyImpl.class);
+
+    private final Cipher encryptCipher;
+    private final Cipher decryptCipher;
+
+    public AAAEncryptionServiceLightyImpl(Cipher encryptCipher, Cipher decryptCipher) {
+        this.encryptCipher = encryptCipher;
+        this.decryptCipher = decryptCipher;
+    }
+
+    @Override
+    public String encrypt(String data) {
+        if (data != null && data.length() != 0 ) {
+            try {
+                synchronized (encryptCipher) {
+                    byte[] cryptobytes = encryptCipher.doFinal(data.getBytes(Charset.defaultCharset()));
+                    String cryptostring = DatatypeConverter.printBase64Binary(cryptobytes);
+                    return cryptostring;
+                }
+            } catch (IllegalBlockSizeException | BadPaddingException e) {
+                LOG.error("Failed to encrypt data.", e);
+                return data;
+            }
+        } else {
+            LOG.warn("data is empty or null.");
+            return data;
+        }
+    }
+
+    @Override
+    public byte[] encrypt(byte[] data) {
+        if (data != null && data.length != 0) {
+            try {
+                synchronized (encryptCipher) {
+                    return encryptCipher.doFinal(data);
+                }
+            } catch (IllegalBlockSizeException | BadPaddingException e) {
+                LOG.error("Failed to encrypt data.", e);
+                return data;
+            }
+        } else {
+            LOG.warn("data is empty or null.");
+            return data;
+        }
+    }
+
+    @Override
+    public String decrypt(String encryptedData) {
+        if (encryptedData != null && encryptedData.length() != 0) {
+            try {
+                byte[] cryptobytes = DatatypeConverter.parseBase64Binary(encryptedData);
+                byte[] clearbytes = decryptCipher.doFinal(cryptobytes);
+                return new String(clearbytes, Charset.defaultCharset());
+            } catch (IllegalBlockSizeException | BadPaddingException e) {
+                LOG.error("Failed to decrypt encoded data", e);
+                return encryptedData;
+            }
+        } else {
+            LOG.warn("encryptedData is empty or null.");
+            return encryptedData;
+        }
+    }
+
+    @Override
+    public byte[] decrypt(byte[] encryptedData) {
+        if (encryptedData != null && encryptedData.length != 0) {
+            try {
+                return decryptCipher.doFinal(encryptedData);
+            } catch (IllegalBlockSizeException | BadPaddingException e) {
+                LOG.error("Failed to decrypt encoded data", e);
+                return encryptedData;
+            }
+        } else {
+            LOG.warn("encryptedData is empty or null.");
+            return encryptedData;
+        }
+    }
+
+}