org.glassfish.security.common.PasswordAliasResolverImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2013, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.security.common;
import org.glassfish.api.admin.PasswordAliasResolver;
import org.glassfish.api.admin.PasswordAliasStore;
/**
* Provides password alias resolution, using an internal password alias store
* to actually resolve an alias if one is specified.
*
* @author tjquinn
*/
public class PasswordAliasResolverImpl implements PasswordAliasResolver {
private static final String ALIAS_TOKEN = "ALIAS";
private static final String STARTER = "${" + ALIAS_TOKEN + "="; //no space is allowed in starter
private static final String ENDER = "}";
private final PasswordAliasStore store;
public PasswordAliasResolverImpl(final PasswordAliasStore store) {
this.store = store;
}
@Override
public char[] resolvePassword(String aliasExpressionOrPassword) {
final String alias = getAlias(aliasExpressionOrPassword);
if (alias != null) {
return store.get(alias);
}
return aliasExpressionOrPassword.toCharArray();
}
/**
* check if a given property name matches AS alias pattern ${ALIAS=aliasname}.
* if so, return the aliasname, otherwise return null.
* @param propName The property name to resolve. ex. ${ALIAS=aliasname}.
* @return The aliasname or null.
*/
private static String getAlias(String pwOrAliasExpression)
{
String aliasName=null;
pwOrAliasExpression = pwOrAliasExpression.trim();
if (pwOrAliasExpression.startsWith(STARTER) && pwOrAliasExpression.endsWith(ENDER) ) {
pwOrAliasExpression = pwOrAliasExpression.substring(STARTER.length() );
int lastIdx = pwOrAliasExpression.length() - 1;
if (lastIdx > 1) {
pwOrAliasExpression = pwOrAliasExpression.substring(0,lastIdx);
if (pwOrAliasExpression!=null) {
aliasName = pwOrAliasExpression.trim();
}
}
}
return aliasName;
}
}