/*
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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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* Copyright 2006-2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.schema;
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import org.opends.messages.Message;
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import org.opends.server.admin.std.server.AttributeSyntaxCfg;
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import org.opends.server.api.ApproximateMatchingRule;
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import org.opends.server.api.AttributeSyntax;
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import org.opends.server.api.EqualityMatchingRule;
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import org.opends.server.api.OrderingMatchingRule;
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import org.opends.server.api.SubstringMatchingRule;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.ResultCode;
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import org.opends.server.types.ByteSequence;
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import static org.opends.server.loggers.ErrorLogger.*;
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import static org.opends.messages.SchemaMessages.*;
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import org.opends.messages.MessageBuilder;
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import static org.opends.server.schema.SchemaConstants.*;
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/**
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* This class defines the auth password attribute syntax, which is defined in
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* RFC 3112 and is used to hold authentication information. Only equality
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* matching will be allowed by default.
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*/
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public class AuthPasswordSyntax
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extends AttributeSyntax<AttributeSyntaxCfg>
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{
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// The default equality matching rule for this syntax.
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private EqualityMatchingRule defaultEqualityMatchingRule;
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/**
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* Creates a new instance of this syntax. Note that the only thing that
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* should be done here is to invoke the default constructor for the
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* superclass. All initialization should be performed in the
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* <CODE>initializeSyntax</CODE> method.
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*/
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public AuthPasswordSyntax()
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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 initializeSyntax(AttributeSyntaxCfg configuration)
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throws ConfigException
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{
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defaultEqualityMatchingRule =
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DirectoryServer.getEqualityMatchingRule(EMR_AUTH_PASSWORD_EXACT_OID);
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if (defaultEqualityMatchingRule == null)
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{
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logError(ERR_ATTR_SYNTAX_UNKNOWN_EQUALITY_MATCHING_RULE.get(
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EMR_AUTH_PASSWORD_EXACT_NAME, SYNTAX_AUTH_PASSWORD_NAME));
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}
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}
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/**
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* Retrieves the common name for this attribute syntax.
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*
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* @return The common name for this attribute syntax.
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*/
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@Override
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public String getSyntaxName()
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{
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return SYNTAX_AUTH_PASSWORD_NAME;
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}
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/**
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* Retrieves the OID for this attribute syntax.
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*
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* @return The OID for this attribute syntax.
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*/
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@Override
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public String getOID()
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{
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return SYNTAX_AUTH_PASSWORD_OID;
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}
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/**
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* Retrieves a description for this attribute syntax.
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*
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* @return A description for this attribute syntax.
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*/
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@Override
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public String getDescription()
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{
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return SYNTAX_AUTH_PASSWORD_DESCRIPTION;
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}
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/**
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* Retrieves the default equality matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default equality matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if equality
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* matches will not be allowed for this type by default.
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*/
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@Override
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public EqualityMatchingRule getEqualityMatchingRule()
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{
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return defaultEqualityMatchingRule;
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}
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/**
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* Retrieves the default ordering matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default ordering matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if ordering
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* matches will not be allowed for this type by default.
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*/
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@Override
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public OrderingMatchingRule getOrderingMatchingRule()
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{
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// There is no ordering matching rule by default.
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return null;
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}
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/**
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* Retrieves the default substring matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default substring matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if substring
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* matches will not be allowed for this type by default.
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*/
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@Override
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public SubstringMatchingRule getSubstringMatchingRule()
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{
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// There is no substring matching rule by default.
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return null;
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}
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/**
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* Retrieves the default approximate matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default approximate matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if approximate
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* matches will not be allowed for this type by default.
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*/
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@Override
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public ApproximateMatchingRule getApproximateMatchingRule()
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{
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// There is no approximate matching rule by default.
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return null;
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}
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/**
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* Indicates whether the provided value is acceptable for use in an attribute
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* with this syntax. If it is not, then the reason may be appended to the
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* provided buffer.
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*
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* @param value The value for which to make the determination.
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* @param invalidReason The buffer to which the invalid reason should be
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* appended.
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*
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* @return <CODE>true</CODE> if the provided value is acceptable for use with
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* this syntax, or <CODE>false</CODE> if not.
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*/
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@Override
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public boolean valueIsAcceptable(ByteSequence value,
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MessageBuilder invalidReason)
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{
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try
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{
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decodeAuthPassword(value.toString());
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return true;
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}
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catch (DirectoryException de)
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{
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invalidReason.append(de.getMessageObject());
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return false;
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}
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}
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/**
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* Decodes the provided authentication password value into its component
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* parts.
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*
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* @param authPasswordValue The authentication password value to be decoded.
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*
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* @return A three-element array, containing the scheme, authInfo, and
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* authValue components of the given string, in that order.
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*
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* @throws DirectoryException If a problem is encountered while attempting
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* to decode the value.
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*/
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public static StringBuilder[] decodeAuthPassword(String authPasswordValue)
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throws DirectoryException
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{
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// Create placeholders for the values to return.
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StringBuilder scheme = new StringBuilder();
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StringBuilder authInfo = new StringBuilder();
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StringBuilder authValue = new StringBuilder();
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// First, ignore any leading whitespace.
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int length = authPasswordValue.length();
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int pos = 0;
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while ((pos < length) && (authPasswordValue.charAt(pos) == ' '))
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{
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pos++;
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}
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// The next set of characters will be the scheme, which must consist only
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// of digits, uppercase alphabetic characters, dash, period, slash, and
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// underscore characters. It must be immediately followed by one or more
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// spaces or a dollar sign.
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readScheme:
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while (pos < length)
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{
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char c = authPasswordValue.charAt(pos);
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switch (c)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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case 'G':
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case 'H':
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case 'I':
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case 'J':
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case 'K':
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case 'L':
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case 'M':
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case 'N':
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case 'O':
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case 'P':
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case 'Q':
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case 'R':
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case 'S':
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case 'T':
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case 'U':
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case 'V':
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case 'W':
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case 'X':
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case 'Y':
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case 'Z':
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case '-':
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case '.':
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case '/':
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case '_':
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scheme.append(c);
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pos++;
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break;
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case ' ':
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case '$':
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break readScheme;
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default:
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Message message = ERR_ATTR_SYNTAX_AUTHPW_INVALID_SCHEME_CHAR.get(pos);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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}
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// The scheme must consist of at least one character.
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if (scheme.length() == 0)
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_NO_SCHEME.get();
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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// Ignore any spaces before the dollar sign separator. Then read the dollar
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// sign and ignore any trailing spaces.
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while ((pos < length) && (authPasswordValue.charAt(pos) == ' '))
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{
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pos++;
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}
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if ((pos < length) && (authPasswordValue.charAt(pos) == '$'))
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{
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pos++;
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}
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else
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_NO_SCHEME_SEPARATOR.get();
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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while ((pos < length) && (authPasswordValue.charAt(pos) == ' '))
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{
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pos++;
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}
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// The next component must be the authInfo element, containing only
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// printable characters other than the dollar sign and space character.
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readAuthInfo:
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while (pos < length)
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{
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char c = authPasswordValue.charAt(pos);
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if ((c == ' ') || (c == '$'))
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{
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break readAuthInfo;
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}
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else if (PrintableString.isPrintableCharacter(c))
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{
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authInfo.append(c);
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pos++;
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}
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else
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{
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Message message =
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ERR_ATTR_SYNTAX_AUTHPW_INVALID_AUTH_INFO_CHAR.get(pos);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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}
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// The authInfo element must consist of at least one character.
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if (scheme.length() == 0)
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_NO_AUTH_INFO.get();
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throw new DirectoryException(
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ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
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}
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// Ignore any spaces before the dollar sign separator. Then read the dollar
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// sign and ignore any trailing spaces.
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while ((pos < length) && (authPasswordValue.charAt(pos) == ' '))
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{
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pos++;
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}
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if ((pos < length) && (authPasswordValue.charAt(pos) == '$'))
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{
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pos++;
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}
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else
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_NO_AUTH_INFO_SEPARATOR.get();
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throw new DirectoryException(
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ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
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}
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while ((pos < length) && (authPasswordValue.charAt(pos) == ' '))
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{
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pos++;
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}
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// The final component must be the authValue element, containing only
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// printable characters other than the dollar sign and space character.
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while (pos < length)
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{
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char c = authPasswordValue.charAt(pos);
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if ((c == ' ') || (c == '$'))
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{
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break ;
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}
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else if (PrintableString.isPrintableCharacter(c))
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{
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authValue.append(c);
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pos++;
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}
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else
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{
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Message message =
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ERR_ATTR_SYNTAX_AUTHPW_INVALID_AUTH_VALUE_CHAR.get(pos);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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}
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// The authValue element must consist of at least one character.
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if (scheme.length() == 0)
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_NO_AUTH_VALUE.get();
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throw new DirectoryException(
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ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
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}
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// The only characters remaining must be whitespace.
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while (pos < length)
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{
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char c = authPasswordValue.charAt(pos);
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if (c == ' ')
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{
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pos++;
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}
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else
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{
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Message message = ERR_ATTR_SYNTAX_AUTHPW_INVALID_TRAILING_CHAR.get(pos);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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}
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// If we've gotten here, then everything must be OK.
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return new StringBuilder[]
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{
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scheme,
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authInfo,
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authValue
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};
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}
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/**
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* Indicates whether the provided value is encoded using the auth password
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* syntax.
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*
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* @param value The value for which to make the determination.
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*
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* @return <CODE>true</CODE> if the value appears to be encoded using the
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* auth password syntax, or <CODE>false</CODE> if not.
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*/
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public static boolean isEncoded(ByteSequence value)
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{
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// FIXME -- Make this more efficient, and don't use exceptions for flow
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// control.
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try
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{
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decodeAuthPassword(value.toString());
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return true;
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}
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catch (Exception e)
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{
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return false;
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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 isBinary()
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{
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return false;
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}
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}
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