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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.X500
{
public class DirectoryString
: Asn1Encodable, IAsn1Choice, IAsn1String
{
private readonly DerStringBase str;
public static DirectoryString GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is Asn1Encodable element)
{
var result = GetOptional(element);
if (result != null)
return result;
}
throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), nameof(obj));
}
public static DirectoryString GetInstance(Asn1TaggedObject obj, bool isExplicit) =>
Asn1Utilities.GetInstanceChoice(obj, isExplicit, GetInstance);
public static DirectoryString GetOptional(Asn1Encodable element)
{
if (element == null)
throw new ArgumentNullException(nameof(element));
if (element is DirectoryString directoryString)
return directoryString;
var innerObject = GetOptionalInnerObject(element);
if (innerObject != null)
return new DirectoryString(innerObject);
return null;
}
public static DirectoryString GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
Asn1Utilities.GetTaggedChoice(taggedObject, declaredExplicit, GetInstance);
private static DerStringBase GetOptionalInnerObject(Asn1Encodable element)
{
return DerT61String.GetOptional(element)
?? DerPrintableString.GetOptional(element)
?? DerUniversalString.GetOptional(element)
?? DerUtf8String.GetOptional(element)
?? DerBmpString.GetOptional(element)
?? (DerStringBase)null;
}
private DirectoryString(
DerStringBase str)
{
this.str = str;
}
public DirectoryString(
string str)
{
this.str = new DerUtf8String(str);
}
public string GetString()
{
return str.GetString();
}
/**
* <pre>
* DirectoryString ::= CHOICE {
* teletexString TeletexString (SIZE (1..MAX)),
* printableString PrintableString (SIZE (1..MAX)),
* universalString UniversalString (SIZE (1..MAX)),
* utf8String UTF8String (SIZE (1..MAX)),
* bmpString BMPString (SIZE (1..MAX)) }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return str.ToAsn1Object();
}
}
}
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