org.apache.synapse.securevault.secret.handler.JlineSecretCallbackHandler Maven / Gradle / Ivy
/*
* 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 org.apache.synapse.securevault.secret.handler;
import jline.ConsoleReader;
import org.apache.synapse.securevault.secret.AbstractSecretCallbackHandler;
import org.apache.synapse.securevault.secret.SingleSecretCallback;
import java.io.IOException;
/**
* JlineBased SecretCallbackHandler , get the required secret using command
* line and propagates to the application that need secret *
*/
public class JlineSecretCallbackHandler extends AbstractSecretCallbackHandler {
private final static String DEFAULT_PROMPT = "enter password> ";
protected void handleSingleSecretCallback(SingleSecretCallback singleSecretCallback) {
String prompt = singleSecretCallback.getPrompt();
if (prompt == null || "".equals(prompt)) {
prompt = DEFAULT_PROMPT;
}
String password = readPassword(prompt);
if (password != null && !"".equals(password)) {
singleSecretCallback.setSecret(password);
}
}
/**
* Heper method to read the password from Jline cmd
*
* @param prompt The prompt to request password
* @return Password
*/
private String readPassword(String prompt) {
ConsoleReader reader;
try {
reader = new ConsoleReader();
Character mask = 0;
return reader.readLine(prompt, mask);
} catch (IOException ignored) {
}
return null;
}
}