| package org.bouncycastle.asn1.cms; |
| |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| import java.util.SimpleTimeZone; |
| |
| import org.bouncycastle.asn1.ASN1Choice; |
| import org.bouncycastle.asn1.ASN1GeneralizedTime; |
| import org.bouncycastle.asn1.ASN1Object; |
| import org.bouncycastle.asn1.ASN1Primitive; |
| import org.bouncycastle.asn1.ASN1TaggedObject; |
| import org.bouncycastle.asn1.ASN1UTCTime; |
| import org.bouncycastle.asn1.DERGeneralizedTime; |
| import org.bouncycastle.asn1.DERUTCTime; |
| |
| /** |
| * <a href="http://tools.ietf.org/html/rfc5652#section-11.3">RFC 5652</a>: |
| * Dual-mode timestamp format producing either UTCTIme or GeneralizedTime. |
| * <p> |
| * <pre> |
| * Time ::= CHOICE { |
| * utcTime UTCTime, |
| * generalTime GeneralizedTime } |
| * </pre> |
| * <p> |
| * This has a constructor using java.util.Date for input which generates |
| * a {@link org.bouncycastle.asn1.DERUTCTime DERUTCTime} object if the |
| * supplied datetime is in range 1950-01-01-00:00:00 UTC until 2049-12-31-23:59:60 UTC. |
| * If the datetime value is outside that range, the generated object will be |
| * {@link org.bouncycastle.asn1.DERGeneralizedTime DERGeneralizedTime}. |
| */ |
| public class Time |
| extends ASN1Object |
| implements ASN1Choice |
| { |
| ASN1Primitive time; |
| |
| public static Time getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| return getInstance(obj.getObject()); |
| } |
| |
| /** |
| * @deprecated use getInstance() |
| */ |
| public Time( |
| ASN1Primitive time) |
| { |
| if (!(time instanceof ASN1UTCTime) |
| && !(time instanceof ASN1GeneralizedTime)) |
| { |
| throw new IllegalArgumentException("unknown object passed to Time"); |
| } |
| |
| this.time = time; |
| } |
| |
| /** |
| * Creates a time object from a given date - if the date is between 1950 |
| * and 2049 a UTCTime object is generated, otherwise a GeneralizedTime |
| * is used. |
| * |
| * @param time a date object representing the time of interest. |
| */ |
| public Time( |
| Date time) |
| { |
| SimpleTimeZone tz = new SimpleTimeZone(0, "Z"); |
| SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss"); |
| |
| dateF.setTimeZone(tz); |
| |
| String d = dateF.format(time) + "Z"; |
| int year = Integer.parseInt(d.substring(0, 4)); |
| |
| if (year < 1950 || year > 2049) |
| { |
| this.time = new DERGeneralizedTime(d); |
| } |
| else |
| { |
| this.time = new DERUTCTime(d.substring(2)); |
| } |
| } |
| |
| /** |
| * Creates a time object from a given date and locale - if the date is between 1950 |
| * and 2049 a UTCTime object is generated, otherwise a GeneralizedTime |
| * is used. You may need to use this constructor if the default locale |
| * doesn't use a Gregorian calender so that the GeneralizedTime produced is compatible with other ASN.1 implementations. |
| * |
| * @param time a date object representing the time of interest. |
| * @param locale an appropriate Locale for producing an ASN.1 GeneralizedTime value. |
| */ |
| public Time( |
| Date time, |
| Locale locale) |
| { |
| SimpleTimeZone tz = new SimpleTimeZone(0, "Z"); |
| SimpleDateFormat dateF = new SimpleDateFormat("yyyyMMddHHmmss", locale); |
| |
| dateF.setTimeZone(tz); |
| |
| String d = dateF.format(time) + "Z"; |
| int year = Integer.parseInt(d.substring(0, 4)); |
| |
| if (year < 1950 || year > 2049) |
| { |
| this.time = new DERGeneralizedTime(d); |
| } |
| else |
| { |
| this.time = new DERUTCTime(d.substring(2)); |
| } |
| } |
| |
| /** |
| * Return a Time object from the given object. |
| * <p> |
| * Accepted inputs: |
| * <ul> |
| * <li> null → null |
| * <li> {@link Time} object |
| * <li> {@link org.bouncycastle.asn1.DERUTCTime DERUTCTime} object |
| * <li> {@link org.bouncycastle.asn1.DERGeneralizedTime DERGeneralizedTime} object |
| * </ul> |
| * |
| * @param obj the object we want converted. |
| * @exception IllegalArgumentException if the object cannot be converted. |
| */ |
| public static Time getInstance( |
| Object obj) |
| { |
| if (obj == null || obj instanceof Time) |
| { |
| return (Time)obj; |
| } |
| else if (obj instanceof ASN1UTCTime) |
| { |
| return new Time((ASN1UTCTime)obj); |
| } |
| else if (obj instanceof ASN1GeneralizedTime) |
| { |
| return new Time((ASN1GeneralizedTime)obj); |
| } |
| |
| throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName()); |
| } |
| |
| /** |
| * Get the date+tine as a String in full form century format. |
| */ |
| public String getTime() |
| { |
| if (time instanceof ASN1UTCTime) |
| { |
| return ((ASN1UTCTime)time).getAdjustedTime(); |
| } |
| else |
| { |
| return ((ASN1GeneralizedTime)time).getTime(); |
| } |
| } |
| |
| /** |
| * Get java.util.Date version of date+time. |
| */ |
| public Date getDate() |
| { |
| try |
| { |
| if (time instanceof ASN1UTCTime) |
| { |
| return ((ASN1UTCTime)time).getAdjustedDate(); |
| } |
| else |
| { |
| return ((ASN1GeneralizedTime)time).getDate(); |
| } |
| } |
| catch (ParseException e) |
| { // this should never happen |
| throw new IllegalStateException("invalid date string: " + e.getMessage()); |
| } |
| } |
| |
| /** |
| * Produce an object suitable for an ASN1OutputStream. |
| */ |
| public ASN1Primitive toASN1Primitive() |
| { |
| return time; |
| } |
| } |