DerGeneralString
using Org.BouncyCastle.Utilities;
using System;
using System.IO;
namespace Org.BouncyCastle.Asn1
{
public class DerGeneralString : DerStringBase
{
internal class Meta : Asn1UniversalType
{
internal static readonly Asn1UniversalType Instance = new Meta();
private Meta()
: base(typeof(DerGeneralString), 27)
{
}
internal override Asn1Object FromImplicitPrimitive(DerOctetString octetString)
{
return CreatePrimitive(octetString.GetOctets());
}
}
private readonly byte[] m_contents;
public static DerGeneralString GetInstance(object obj)
{
if (obj == null)
return null;
DerGeneralString derGeneralString = obj as DerGeneralString;
if (derGeneralString != null)
return derGeneralString;
IAsn1Convertible asn1Convertible = obj as IAsn1Convertible;
if (asn1Convertible != null) {
if (!(obj is Asn1Object)) {
DerGeneralString derGeneralString2 = asn1Convertible.ToAsn1Object() as DerGeneralString;
if (derGeneralString2 != null)
return derGeneralString2;
}
} else {
byte[] array = obj as byte[];
if (array != null)
try {
return (DerGeneralString)Meta.Instance.FromByteArray(array);
} catch (IOException ex) {
throw new ArgumentException("failed to construct general string from byte[]: " + ex.Message);
}
}
throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
}
public static DerGeneralString GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return (DerGeneralString)Meta.Instance.GetContextInstance(taggedObject, declaredExplicit);
}
public static DerGeneralString GetOptional(Asn1Encodable element)
{
if (element == null)
throw new ArgumentNullException("element");
DerGeneralString derGeneralString = element as DerGeneralString;
if (derGeneralString != null)
return derGeneralString;
return null;
}
public static DerGeneralString GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return (DerGeneralString)Meta.Instance.GetTagged(taggedObject, declaredExplicit);
}
public DerGeneralString(string str)
{
if (str == null)
throw new ArgumentNullException("str");
m_contents = Strings.ToAsciiByteArray(str);
}
public DerGeneralString(byte[] contents)
: this(contents, true)
{
}
internal DerGeneralString(byte[] contents, bool clone)
{
if (contents == null)
throw new ArgumentNullException("contents");
m_contents = (clone ? Arrays.Clone(contents) : contents);
}
public override string GetString()
{
return Strings.FromAsciiByteArray(m_contents);
}
public byte[] GetOctets()
{
return Arrays.Clone(m_contents);
}
internal override IAsn1Encoding GetEncoding(int encoding)
{
return new PrimitiveEncoding(0, 27, m_contents);
}
internal override IAsn1Encoding GetEncodingImplicit(int encoding, int tagClass, int tagNo)
{
return new PrimitiveEncoding(tagClass, tagNo, m_contents);
}
internal sealed override DerEncoding GetEncodingDer()
{
return new PrimitiveDerEncoding(0, 27, m_contents);
}
internal sealed override DerEncoding GetEncodingDerImplicit(int tagClass, int tagNo)
{
return new PrimitiveDerEncoding(tagClass, tagNo, m_contents);
}
protected override bool Asn1Equals(Asn1Object asn1Object)
{
DerGeneralString derGeneralString = asn1Object as DerGeneralString;
if (derGeneralString != null)
return Arrays.AreEqual(m_contents, derGeneralString.m_contents);
return false;
}
protected override int Asn1GetHashCode()
{
return Arrays.GetHashCode(m_contents);
}
internal static DerGeneralString CreatePrimitive(byte[] contents)
{
return new DerGeneralString(contents, false);
}
}
}