/* Copyright (c) 2000 The Legion Of The Bouncy Castle * (http://www.bouncycastle.org) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package jcifs.spnego.asn1; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.SimpleTimeZone; /** * Generalized time object. */ public class DERGeneralizedTime extends DERObject { String time; /** * return a generalized time from the passed in object * * @exception IllegalArgumentException if the object cannot be converted. */ public static DERGeneralizedTime getInstance( Object obj) { if (obj == null || obj instanceof DERGeneralizedTime) { return (DERGeneralizedTime)obj; } if (obj instanceof ASN1OctetString) { return new DERGeneralizedTime(((ASN1OctetString)obj).getOctets()); } throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName()); } /** * return a Generalized Time object from a tagged object. * * @param obj the tagged object holding the object we want * @param explicit true if the object is meant to be explicitly * tagged false otherwise. * @exception IllegalArgumentException if the tagged object cannot * be converted. */ public static DERGeneralizedTime getInstance( ASN1TaggedObject obj, boolean explicit) { return getInstance(obj.getObject()); } /** * The correct format for this is YYYYMMDDHHMMSSZ, or without the Z * for local time, or Z+-HHMM on the end, for difference between local * time and UTC time. * <p> * * @param time the time string. */ public DERGeneralizedTime( String time) { this.time = time; } /** * base constructer from a java.util.date object */ public DERGeneralizedTime( Date time) { SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss'Z'"); dateF.setTimeZone(new SimpleTimeZone(0,"Z")); this.time = dateF.format(time); } DERGeneralizedTime( byte[] bytes) { // // explicitly convert to characters // char[] dateC = new char[bytes.length]; for (int i = 0; i != dateC.length; i++) { dateC[i] = (char)(bytes[i] & 0xff); } this.time = new String(dateC); } /** * return the time - always in the form of * YYYYMMDDhhmmssGMT(+hh:mm|-hh:mm). * <p> * Normally in a certificate we would expect "Z" rather than "GMT", * however adding the "GMT" means we can just use: * <pre> * dateF = new SimpleDateFormat("yyyyMMddHHmmssz"); * </pre> * To read in the time and get a date which is compatible with our local * time zone. */ public String getTime() { // // standardise the format. // if (time.length() == 15) { return time.substring(0, 14) + "GMT+00:00"; } else if (time.length() == 17) { return time.substring(0, 14) + "GMT" + time.substring(15, 17) + ":" + time.substring(17, 19); } return time; } private byte[] getOctets() { char[] cs = time.toCharArray(); byte[] bs = new byte[cs.length]; for (int i = 0; i != cs.length; i++) { bs[i] = (byte)cs[i]; } return bs; } void encode( DEROutputStream out) throws IOException { out.writeEncoded(GENERALIZED_TIME, this.getOctets()); } public boolean equals( Object o) { if ((o == null) || !(o instanceof DERGeneralizedTime)) { return false; } return time.equals(((DERGeneralizedTime)o).time); } }