| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.kerby.asn1.type; |
| |
| import org.apache.kerby.asn1.UniversalTag; |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.SimpleTimeZone; |
| import java.util.TimeZone; |
| |
| public class Asn1GeneralizedTime extends Asn1Simple<Date> { |
| public Asn1GeneralizedTime() { |
| this(null); |
| } |
| |
| /** |
| * time in milliseconds |
| * @param time The long time |
| */ |
| public Asn1GeneralizedTime(long time) { |
| super(UniversalTag.GENERALIZED_TIME, new Date(time)); |
| } |
| |
| public Asn1GeneralizedTime(Date date) { |
| super(UniversalTag.UTC_TIME, date); |
| } |
| |
| protected void toValue() throws IOException { |
| String dateStr = new String(getBytes(), StandardCharsets.US_ASCII); |
| SimpleDateFormat sdf; |
| String fixedDateStr = dateStr; |
| |
| boolean withZ = dateStr.endsWith("Z"); |
| String timeZonePart = getTimeZonePart(dateStr); |
| boolean withZone = timeZonePart != null; |
| String millSecs = getMillSeconds(dateStr); |
| |
| fixedDateStr = dateStr.substring(0, 14) + millSecs; |
| if (withZ) { |
| sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS"); |
| sdf.setTimeZone(new SimpleTimeZone(0, "Z")); |
| } else if (withZone) { |
| fixedDateStr += timeZonePart; |
| sdf = new SimpleDateFormat("yyyyMMddHHmmssSSSz"); |
| sdf.setTimeZone(new SimpleTimeZone(0, "Z")); |
| } else { |
| sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS"); |
| sdf.setTimeZone(new SimpleTimeZone(0, TimeZone.getDefault().getID())); |
| } |
| |
| try { |
| setValue(sdf.parse(fixedDateStr)); |
| } catch (ParseException e) { |
| throw new IOException("Failed to parse as generalized time string " + dateStr); |
| } |
| } |
| |
| @Override |
| protected void toBytes() { |
| Date date = getValue(); |
| SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss'Z'"); |
| dateF.setTimeZone(new SimpleTimeZone(0, "Z")); |
| |
| String str = dateF.format(date); |
| byte[] bytes = str.getBytes(StandardCharsets.US_ASCII); |
| setBytes(bytes); |
| } |
| |
| /** |
| * Extract the fractional part in seconds and convert into integer by (frac * 1000) as milli seconds |
| */ |
| private String getMillSeconds(String dateStr) { |
| char[] millDigits = new char[] {'0', '0', '0'}; |
| |
| int iPos = dateStr.indexOf('.'); |
| if (iPos > 0) { |
| if (iPos != 14) { |
| throw new IllegalArgumentException("Bad generalized time string, " |
| + "with improper milli seconds " + dateStr); |
| } |
| |
| char chr; |
| int j = 0; |
| for (int i = 15; i < dateStr.length() && j < millDigits.length; i++) { |
| chr = dateStr.charAt(i); |
| if ('0' <= chr && chr <= '9') { |
| millDigits[j++] = chr; |
| } else { |
| break; |
| } |
| } |
| } |
| |
| return new String(millDigits); |
| } |
| |
| /** |
| * Extract the timezone part if any |
| */ |
| private String getTimeZonePart(String dateStr) { |
| int iPos = dateStr.indexOf('+'); |
| if (iPos == -1) { |
| iPos = dateStr.indexOf('-'); |
| } |
| if (iPos > 0 && iPos != dateStr.length() - 5) { |
| throw new IllegalArgumentException("Bad generalized time string, " |
| + "with improper timezone part " + dateStr); |
| } |
| |
| if (iPos > 0) { |
| return dateStr.substring(iPos); |
| } |
| return null; |
| } |
| } |