/*
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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.schema;
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import java.util.Arrays;
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import org.opends.server.admin.std.server.EqualityMatchingRuleCfg;
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import org.opends.server.api.EqualityMatchingRule;
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import org.opends.server.config.ConfigException;
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import org.opends.server.protocols.asn1.ASN1OctetString;
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import org.opends.server.types.ByteString;
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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 static org.opends.server.schema.SchemaConstants.*;
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/**
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* This class implements the userPasswordExactMatch matching rule, which will
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* simply compare encoded hashed password values to see if they are exactly
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* equal to each other.
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*/
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public class UserPasswordExactEqualityMatchingRule
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extends EqualityMatchingRule
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{
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/**
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* Creates a new instance of this userPasswordExactMatch matching rule.
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*/
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public UserPasswordExactEqualityMatchingRule()
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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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public void initializeMatchingRule(EqualityMatchingRuleCfg 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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* Retrieves the common name for this matching rule.
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*
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* @return The common name for this matching rule, or <CODE>null</CODE> if
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* it does not have a name.
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*/
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public String getName()
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{
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return EMR_USER_PASSWORD_EXACT_NAME;
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}
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/**
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* Retrieves the OID for this matching rule.
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*
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* @return The OID for this matching rule.
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*/
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public String getOID()
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{
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return EMR_USER_PASSWORD_EXACT_OID;
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}
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/**
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* Retrieves the description for this matching rule.
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*
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* @return The description for this matching rule, or <CODE>null</CODE> if
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* there is none.
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*/
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public String getDescription()
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{
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// There is no standard description for this matching rule.
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return EMR_USER_PASSWORD_EXACT_DESCRIPTION;
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}
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/**
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* Retrieves the OID of the syntax with which this matching rule is
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* associated.
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*
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* @return The OID of the syntax with which this matching rule is associated.
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*/
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public String getSyntaxOID()
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{
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return SYNTAX_USER_PASSWORD_OID;
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}
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/**
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* Retrieves the normalized form of the provided value, which is best suited
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* for efficiently performing matching operations on that value.
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*
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* @param value The value to be normalized.
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*
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* @return The normalized version of the provided value.
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*
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* @throws DirectoryException If the provided value is invalid according to
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* the associated attribute syntax.
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*/
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public ByteString normalizeValue(ByteString value)
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throws DirectoryException
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{
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// The normalized form of this matching rule is exactly equal to the
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// non-normalized form, except that the scheme needs to be converted to
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// lowercase (if there is one).
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byte[] valueBytes = value.value();
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byte[] newValueBytes = new byte[valueBytes.length];
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System.arraycopy(valueBytes, 0, newValueBytes, 0, valueBytes.length);
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if (UserPasswordSyntax.isEncoded(value))
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{
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schemeLoop:
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for (int i=1; i < newValueBytes.length; i++)
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{
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switch (newValueBytes[i])
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{
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case 'A':
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newValueBytes[i] = 'a';
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break;
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case 'B':
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newValueBytes[i] = 'b';
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break;
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case 'C':
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newValueBytes[i] = 'c';
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break;
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case 'D':
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newValueBytes[i] = 'd';
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break;
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case 'E':
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newValueBytes[i] = 'e';
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break;
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case 'F':
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newValueBytes[i] = 'f';
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break;
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case 'G':
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newValueBytes[i] = 'g';
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break;
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case 'H':
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newValueBytes[i] = 'h';
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break;
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case 'I':
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newValueBytes[i] = 'i';
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break;
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case 'J':
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newValueBytes[i] = 'j';
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break;
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case 'K':
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newValueBytes[i] = 'k';
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break;
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case 'L':
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newValueBytes[i] = 'l';
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break;
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case 'M':
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newValueBytes[i] = 'm';
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break;
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case 'N':
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newValueBytes[i] = 'n';
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break;
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case 'O':
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newValueBytes[i] = 'o';
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break;
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case 'P':
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newValueBytes[i] = 'p';
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break;
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case 'Q':
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newValueBytes[i] = 'q';
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break;
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case 'R':
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newValueBytes[i] = 'r';
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break;
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case 'S':
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newValueBytes[i] = 's';
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break;
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case 'T':
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newValueBytes[i] = 't';
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break;
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case 'U':
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newValueBytes[i] = 'u';
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break;
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case 'V':
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newValueBytes[i] = 'v';
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break;
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case 'W':
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newValueBytes[i] = 'w';
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break;
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case 'X':
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newValueBytes[i] = 'x';
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break;
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case 'Y':
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newValueBytes[i] = 'y';
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break;
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case 'Z':
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newValueBytes[i] = 'z';
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break;
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case '}':
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break schemeLoop;
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}
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}
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}
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return new ASN1OctetString(newValueBytes);
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}
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/**
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* Indicates whether the two provided normalized values are equal to each
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* other.
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*
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* @param value1 The normalized form of the first value to compare.
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* @param value2 The normalized form of the second value to compare.
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*
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* @return <CODE>true</CODE> if the provided values are equal, or
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* <CODE>false</CODE> if not.
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*/
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public boolean areEqual(ByteString value1, ByteString value2)
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{
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// Since the values are already normalized, we just need to compare the
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// associated byte arrays.
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return Arrays.equals(value1.value(), value2.value());
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}
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}
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