001/** 002 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. 003 * 004 * Copyright (c) 2006 Sun Microsystems Inc. All Rights Reserved 005 * 006 * The contents of this file are subject to the terms 007 * of the Common Development and Distribution License 008 * (the License). You may not use this file except in 009 * compliance with the License. 010 * 011 * You can obtain a copy of the License at 012 * https://opensso.dev.java.net/public/CDDLv1.0.html or 013 * opensso/legal/CDDLv1.0.txt 014 * See the License for the specific language governing 015 * permission and limitations under the License. 016 * 017 * When distributing Covered Code, include this CDDL 018 * Header Notice in each file and include the License file 019 * at opensso/legal/CDDLv1.0.txt. 020 * If applicable, add the following below the CDDL Header, 021 * with the fields enclosed by brackets [] replaced by 022 * your own identifying information: 023 * "Portions Copyrighted [year] [name of copyright owner]" 024 * 025 * $Id: TruncationTransform.java,v 1.2 2008/06/25 05:47:08 qcheng Exp $ 026 * 027 */ 028 029 030package com.sun.identity.liberty.ws.authnsvc.protocol; 031 032import java.util.ArrayList; 033import java.util.Iterator; 034 035import com.sun.identity.liberty.ws.authnsvc.AuthnSvcUtils; 036 037/** 038 * The <code>TruncationTransform</code> class represents a 039 * <code>Transform</code> that remove all subsequent characters after a given 040 * number of characters have been obtained. 041 * 042 * @supported.all.api 043 */ 044public class TruncationTransform extends Transform { 045 046 047 /** 048 * This is the default constructor. 049 */ 050 public TruncationTransform() { 051 name = TRUNCATION_URI; 052 } 053 054 /** 055 * Constructs <code>TruncationTransform</code> object with length. 056 * @param length all subsequent characters after the length will be 057 * removed 058 */ 059 public TruncationTransform(int length) { 060 name = TRUNCATION_URI; 061 Parameter parameter = new Parameter(Parameter.NAME_LENGTH, "" +length); 062 parameters = new ArrayList(); 063 parameters.add(parameter); 064 } 065 066 /** 067 * Transforms password. 068 * @param password original password 069 * @return transformed password 070 */ 071 public String transform(String password) 072 { 073 if (AuthnSvcUtils.debug.messageEnabled()) { 074 AuthnSvcUtils.debug.message("TruncationTransform.transform"); 075 } 076 077 if (password == null) { 078 return null; 079 } 080 081 if (parameters == null || parameters.isEmpty()) { 082 if (AuthnSvcUtils.debug.warningEnabled()) { 083 AuthnSvcUtils.debug.warning("TruncationTransform.transform: " + 084 "no parameter found"); 085 } 086 return password; 087 } 088 089 for(Iterator iter = parameters.iterator(); iter.hasNext(); ) { 090 091 Parameter parameter = (Parameter)iter.next(); 092 if (parameter.getName().equals(Parameter.NAME_LENGTH)) { 093 094 try { 095 int length = Integer.parseInt(parameter.getValue()); 096 if (length < password.length() && length >= 0) { 097 return password.substring(0, length); 098 } else { 099 if (AuthnSvcUtils.debug.messageEnabled()) { 100 AuthnSvcUtils.debug.message( 101 "TruncationTransform.transform: parameter " + 102 "length value isn't less than password length"); 103 } 104 } 105 } catch (Exception ex) { 106 if (AuthnSvcUtils.debug.warningEnabled()) { 107 AuthnSvcUtils.debug.warning( 108 "TruncationTransform.transform: " + 109 "parameter value is not integer", ex); 110 } 111 } 112 113 return password; 114 } 115 } 116 117 if (AuthnSvcUtils.debug.warningEnabled()) { 118 AuthnSvcUtils.debug.warning("TruncationTransform.transform: " + 119 "parameter 'name' not found"); 120 } 121 return password; 122 } 123}