Files
SuperVPN/output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/DerUtcTime.cs
2025-10-09 09:57:24 +09:00

144 lines
2.9 KiB
C#

using System;
using System.Globalization;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1;
public class DerUtcTime : Asn1Object
{
private readonly string time;
public string TimeString
{
get
{
if (time.IndexOf('-') < 0 && time.IndexOf('+') < 0)
{
if (time.Length == 11)
{
return time.Substring(0, 10) + "00GMT+00:00";
}
return time.Substring(0, 12) + "GMT+00:00";
}
int num = time.IndexOf('-');
if (num < 0)
{
num = time.IndexOf('+');
}
string text = time;
if (num == time.Length - 3)
{
text += "00";
}
if (num == 10)
{
return text.Substring(0, 10) + "00GMT" + text.Substring(10, 3) + ":" + text.Substring(13, 2);
}
return text.Substring(0, 12) + "GMT" + text.Substring(12, 3) + ":" + text.Substring(15, 2);
}
}
[Obsolete("Use 'AdjustedTimeString' property instead")]
public string AdjustedTime => AdjustedTimeString;
public string AdjustedTimeString
{
get
{
string timeString = TimeString;
string text = ((timeString[0] < '5') ? "20" : "19");
return text + timeString;
}
}
public static DerUtcTime GetInstance(object obj)
{
if (obj == null || obj is DerUtcTime)
{
return (DerUtcTime)obj;
}
throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
}
public static DerUtcTime GetInstance(Asn1TaggedObject obj, bool isExplicit)
{
Asn1Object asn1Object = obj.GetObject();
if (isExplicit || asn1Object is DerUtcTime)
{
return GetInstance(asn1Object);
}
return new DerUtcTime(((Asn1OctetString)asn1Object).GetOctets());
}
public DerUtcTime(string time)
{
if (time == null)
{
throw new ArgumentNullException("time");
}
this.time = time;
try
{
ToDateTime();
}
catch (FormatException ex)
{
throw new ArgumentException("invalid date string: " + ex.Message);
}
}
public DerUtcTime(DateTime time)
{
this.time = time.ToString("yyMMddHHmmss", CultureInfo.InvariantCulture) + "Z";
}
internal DerUtcTime(byte[] bytes)
{
time = Strings.FromAsciiByteArray(bytes);
}
public DateTime ToDateTime()
{
return ParseDateString(TimeString, "yyMMddHHmmss'GMT'zzz");
}
public DateTime ToAdjustedDateTime()
{
return ParseDateString(AdjustedTimeString, "yyyyMMddHHmmss'GMT'zzz");
}
private DateTime ParseDateString(string dateStr, string formatStr)
{
return DateTime.ParseExact(dateStr, formatStr, DateTimeFormatInfo.InvariantInfo).ToUniversalTime();
}
private byte[] GetOctets()
{
return Strings.ToAsciiByteArray(time);
}
internal override void Encode(DerOutputStream derOut)
{
derOut.WriteEncoded(23, GetOctets());
}
protected override bool Asn1Equals(Asn1Object asn1Object)
{
if (!(asn1Object is DerUtcTime derUtcTime))
{
return false;
}
return time.Equals(derUtcTime.time);
}
protected override int Asn1GetHashCode()
{
return time.GetHashCode();
}
public override string ToString()
{
return time;
}
}