88 lines
1.7 KiB
C#
88 lines
1.7 KiB
C#
using System;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1;
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public class DerNumericString : DerStringBase
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{
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private readonly string str;
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public static DerNumericString GetInstance(object obj)
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{
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if (obj == null || obj is DerNumericString)
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{
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return (DerNumericString)obj;
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}
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throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
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}
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public static DerNumericString GetInstance(Asn1TaggedObject obj, bool isExplicit)
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{
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Asn1Object asn1Object = obj.GetObject();
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if (isExplicit || asn1Object is DerNumericString)
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{
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return GetInstance(asn1Object);
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}
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return new DerNumericString(Asn1OctetString.GetInstance(asn1Object).GetOctets());
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}
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public DerNumericString(byte[] str)
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: this(Strings.FromAsciiByteArray(str), validate: false)
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{
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}
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public DerNumericString(string str)
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: this(str, validate: false)
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{
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}
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public DerNumericString(string str, bool validate)
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{
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if (str == null)
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{
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throw new ArgumentNullException("str");
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}
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if (validate && !IsNumericString(str))
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{
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throw new ArgumentException("string contains illegal characters", "str");
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}
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this.str = str;
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}
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public override string GetString()
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{
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return str;
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}
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public byte[] GetOctets()
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{
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return Strings.ToAsciiByteArray(str);
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}
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internal override void Encode(DerOutputStream derOut)
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{
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derOut.WriteEncoded(18, GetOctets());
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}
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protected override bool Asn1Equals(Asn1Object asn1Object)
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{
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if (!(asn1Object is DerNumericString derNumericString))
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{
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return false;
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}
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return str.Equals(derNumericString.str);
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}
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public static bool IsNumericString(string str)
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{
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foreach (char c in str)
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{
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if (c > '\u007f' || (c != ' ' && !char.IsDigit(c)))
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{
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return false;
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}
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}
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return true;
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}
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}
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