add rabbitmq jasypt property encryption facility

utils/src/main/java/com/cloud/utils/crypt/EncryptablePropertyPlaceholderConfigurer.java

@@ -0,0 +1,59 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+//
+
+package com.cloud.utils.crypt;
+
+import org.jasypt.encryption.StringEncryptor;
+import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
+
+/**
+ * Spring bean that resolves property placeholders, decrypting any value wrapped as
+ * {@code ENC(...)} with the given jasypt {@link StringEncryptor}. Values that are not wrapped
+ * are passed through unchanged.
+ *
+ * This replaces {@code org.jasypt.spring3.properties.EncryptablePropertyPlaceholderConfigurer}
+ * (from the jasypt-spring3 artifact), which is not on the classpath and is incompatible with
+ * Spring 5, so beans referencing it fail with a ClassNotFoundException.
+ */
+public class EncryptablePropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer {
+
+    private static final String ENC_PREFIX = "ENC(";
+    private static final String ENC_SUFFIX = ")";
+
+    private final StringEncryptor encryptor;
+
+    public EncryptablePropertyPlaceholderConfigurer(StringEncryptor encryptor) {
+        this.encryptor = encryptor;
+    }
+
+    @Override
+    protected String convertPropertyValue(String originalValue) {
+        if (originalValue == null) {
+            return null;
+        }
+
+        String trimmedValue = originalValue.trim();
+        if (trimmedValue.startsWith(ENC_PREFIX) && trimmedValue.endsWith(ENC_SUFFIX)) {
+            String encryptedValue = trimmedValue.substring(ENC_PREFIX.length(), trimmedValue.length() - ENC_SUFFIX.length());
+            return encryptor.decrypt(encryptedValue);
+        }
+
+        return originalValue;
+    }
+}

utils/src/test/java/com/cloud/utils/crypt/EncryptablePropertyPlaceholderConfigurerTest.java

@@ -0,0 +1,73 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+//
+
+package com.cloud.utils.crypt;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+import org.jasypt.encryption.StringEncryptor;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class EncryptablePropertyPlaceholderConfigurerTest {
+
+    @Test
+    public void convertPropertyValueDecryptsWrappedValue() {
+        StringEncryptor encryptor = mock(StringEncryptor.class);
+        when(encryptor.decrypt("bmb2VaFdQb")).thenReturn("secret");
+        EncryptablePropertyPlaceholderConfigurer configurer = new EncryptablePropertyPlaceholderConfigurer(encryptor);
+
+        String result = configurer.convertPropertyValue("ENC(bmb2VaFdQb)");
+
+        Assert.assertEquals("secret", result);
+    }
+
+    @Test
+    public void convertPropertyValueTrimsSurroundingWhitespaceBeforeDecrypting() {
+        StringEncryptor encryptor = mock(StringEncryptor.class);
+        when(encryptor.decrypt("bmb2VaFdQb")).thenReturn("secret");
+        EncryptablePropertyPlaceholderConfigurer configurer = new EncryptablePropertyPlaceholderConfigurer(encryptor);
+
+        String result = configurer.convertPropertyValue("  ENC(bmb2VaFdQb)  ");
+
+        Assert.assertEquals("secret", result);
+    }
+
+    @Test
+    public void convertPropertyValuePassesThroughPlainValues() {
+        StringEncryptor encryptor = mock(StringEncryptor.class);
+        EncryptablePropertyPlaceholderConfigurer configurer = new EncryptablePropertyPlaceholderConfigurer(encryptor);
+
+        String result = configurer.convertPropertyValue("guest");
+
+        Assert.assertEquals("guest", result);
+        verifyNoInteractions(encryptor);
+    }
+
+    @Test
+    public void convertPropertyValueHandlesNull() {
+        StringEncryptor encryptor = mock(StringEncryptor.class);
+        EncryptablePropertyPlaceholderConfigurer configurer = new EncryptablePropertyPlaceholderConfigurer(encryptor);
+
+        Assert.assertNull(configurer.convertPropertyValue(null));
+        verifyNoInteractions(encryptor);
+    }
+}