/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.extensions;
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import org.opends.messages.Message;
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import org.opends.server.admin.std.server.Base64PasswordStorageSchemeCfg;
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import org.opends.server.api.PasswordStorageScheme;
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import org.opends.server.config.ConfigException;
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import org.opends.server.loggers.debug.DebugTracer;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.ByteStringFactory;
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import org.opends.server.types.DebugLogLevel;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.InitializationException;
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import org.opends.server.types.ResultCode;
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import org.opends.server.util.Base64;
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import static org.opends.messages.ExtensionMessages.*;
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import static org.opends.server.extensions.ExtensionsConstants.*;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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/**
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* This class defines a Directory Server password storage scheme that will store
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* the values in base64-encoded form. This is a reversible algorithm that
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* offers very little actual protection -- it will merely obscure the plaintext
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* value from the casual observer.
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*/
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public class Base64PasswordStorageScheme
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extends PasswordStorageScheme<Base64PasswordStorageSchemeCfg>
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{
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/**
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* The tracer object for the debug logger.
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*/
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private static final DebugTracer TRACER = getTracer();
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/**
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* Creates a new instance of this password storage scheme. Note that no
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* initialization should be performed here, as all initialization should be
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* done in the <CODE>initializePasswordStorageScheme</CODE> method.
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*/
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public Base64PasswordStorageScheme()
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{
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super();
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public void initializePasswordStorageScheme(
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Base64PasswordStorageSchemeCfg configuration)
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throws ConfigException, InitializationException
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{
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// No initialization is required.
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public String getStorageSchemeName()
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{
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return STORAGE_SCHEME_NAME_BASE64;
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public ByteString encodePassword(ByteString plaintext)
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throws DirectoryException
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{
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return ByteStringFactory.create(Base64.encode(plaintext.value()));
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public ByteString encodePasswordWithScheme(ByteString plaintext)
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throws DirectoryException
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{
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StringBuilder buffer = new StringBuilder();
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buffer.append('{');
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buffer.append(STORAGE_SCHEME_NAME_BASE64);
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buffer.append('}');
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buffer.append(Base64.encode(plaintext.value()));
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return ByteStringFactory.create(buffer.toString());
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public boolean passwordMatches(ByteString plaintextPassword,
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ByteString storedPassword)
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{
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String userString = Base64.encode(plaintextPassword.value());
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String storedString = storedPassword.stringValue();
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return userString.equals(storedString);
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public boolean isReversible()
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{
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public ByteString getPlaintextValue(ByteString storedPassword)
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throws DirectoryException
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{
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try
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{
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return ByteStringFactory.create(Base64.decode(
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storedPassword.stringValue()));
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}
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catch (Exception e)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, e);
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}
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Message message = ERR_PWSCHEME_CANNOT_BASE64_DECODE_STORED_PASSWORD.get(
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storedPassword.stringValue(), String.valueOf(e));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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e);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public boolean supportsAuthPasswordSyntax()
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{
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// This storage scheme does not support the authentication password syntax.
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public ByteString encodeAuthPassword(ByteString plaintext)
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throws DirectoryException
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{
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Message message =
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ERR_PWSCHEME_DOES_NOT_SUPPORT_AUTH_PASSWORD.get(getStorageSchemeName());
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throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, message);
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public boolean authPasswordMatches(ByteString plaintextPassword,
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String authInfo, String authValue)
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{
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// This storage scheme does not support the authentication password syntax.
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public ByteString getAuthPasswordPlaintextValue(String authInfo,
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String authValue)
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throws DirectoryException
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{
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Message message =
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ERR_PWSCHEME_DOES_NOT_SUPPORT_AUTH_PASSWORD.get(getStorageSchemeName());
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throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, message);
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}
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/**
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* {@inheritDoc}
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*/
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@Override()
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public boolean isStorageSchemeSecure()
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{
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// Base64-encoded values may be easily decoded with no key or special
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// knowledge.
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return false;
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}
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}
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