1 files changed, 135 insertions, 0 deletions
diff --git a/cmso-optimizer/src/main/java/org/onap/optf/cmso/optimizer/common/PropertiesManagement.java b/cmso-optimizer/src/main/java/org/onap/optf/cmso/optimizer/common/PropertiesManagement.java
new file mode 100644
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+++ b/cmso-optimizer/src/main/java/org/onap/optf/cmso/optimizer/common/PropertiesManagement.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2017-2018 AT&T Intellectual Property. Modifications Copyright © 2018 IBM.
+ *
+ * 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.
+ *
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed under the Creative
+ * Commons License, Attribution 4.0 Intl. (the "License"); you may not use this documentation except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation 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.
+ */
+
+package org.onap.optf.cmso.optimizer.common;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import org.apache.commons.codec.binary.Base64;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Component;
+
+/**
+ * The Class PropertiesManagement.
+ */
+@Component
+public class PropertiesManagement {
+
+    private static EELFLogger debug = EELFManager.getInstance().getDebugLogger();
+    private static EELFLogger errors = EELFManager.getInstance().getErrorLogger();
+
+    private static final String algorithm = "AES";
+
+    private static final String cipherMode = "CBC";
+
+    private static final String paddingScheme = "PKCS5Padding";
+
+    private static final String transformation = algorithm + "/" + cipherMode + "/" + paddingScheme;
+
+    private static final String initVector = "ONAPCMSOVECTORIV"; // 16 bytes IV
+
+    @Autowired
+    Environment env;
+
+    /**
+     * Gets the property.
+     *
+     * @param key the key
+     * @param defaultValue the default value
+     * @return the property
+     */
+    public String getProperty(String key, String defaultValue) {
+        String value = env.getProperty(key, defaultValue);
+        value = getDecryptedValue(value);
+        return value;
+    }
+
+    /**
+     * Gets the decrypted value.
+     *
+     * @param value the value
+     * @return the decrypted value
+     */
+    public static String getDecryptedValue(String value) {
+        if (value.startsWith("enc:")) {
+            String secret = getSecret();
+            value = decrypt(secret, initVector, value.substring(4));
+        }
+        return value;
+    }
+
+    /**
+     * Gets the encrypted value.
+     *
+     * @param value the value
+     * @return the encrypted value
+     */
+    public static String getEncryptedValue(String value) {
+        String secret = getSecret();
+        value = encrypt(secret, initVector, value);
+        return value;
+    }
+
+    private static final String encrypt(String key, String initVector, String value) {
+        try {
+            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+            Cipher cipher = Cipher.getInstance(transformation);
+            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
+            byte[] encrypted = cipher.doFinal(value.getBytes());
+            return Base64.encodeBase64String(encrypted);
+        } catch (Exception ex) {
+            errors.error("Unexpected exception {0}", ex.getMessage());
+            debug.debug("Unexpected exception", ex);
+        }
+
+        return null;
+    }
+
+    private static final String decrypt(String key, String initVector, String encrypted) {
+        try {
+            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+            Cipher cipher = Cipher.getInstance(transformation);
+            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
+            byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
+            return new String(original);
+        } catch (Exception ex) {
+            errors.error("Unexpected exception {0}", ex.getMessage());
+            debug.debug("Unexpected exception", ex);
+        }
+        return null;
+    }
+
+    private static String getSecret() {
+        return "ONAPCMSOSECRETIV";
+    }
+
+}