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using System;
using Org.BouncyCastle.Asn1.X500;
namespace Org.BouncyCastle.Asn1.Esf
{
/**
* Signer-Location attribute (RFC3126).
*
* <pre>
* SignerLocation ::= SEQUENCE {
* countryName [0] DirectoryString OPTIONAL,
* localityName [1] DirectoryString OPTIONAL,
* postalAddress [2] PostalAddress OPTIONAL }
*
* PostalAddress ::= SEQUENCE SIZE(1..6) OF DirectoryString
* </pre>
*/
public class SignerLocation
: Asn1Encodable
{
private readonly DirectoryString countryName;
private readonly DirectoryString localityName;
private readonly Asn1Sequence postalAddress;
public SignerLocation(Asn1Sequence seq)
{
foreach (var element in seq)
{
var obj = Asn1TaggedObject.GetInstance(element, Asn1Tags.ContextSpecific);
switch (obj.TagNo)
{
case 0:
this.countryName = DirectoryString.GetInstance(obj, true);
break;
case 1:
this.localityName = DirectoryString.GetInstance(obj, true);
break;
case 2:
bool isExplicit = obj.IsExplicit(); // handle erroneous implicitly tagged sequences
this.postalAddress = Asn1Sequence.GetInstance(obj, isExplicit);
if (postalAddress != null && postalAddress.Count > 6)
throw new ArgumentException("postal address must contain less than 6 strings");
break;
default:
throw new ArgumentException("illegal tag");
}
}
}
private SignerLocation(
DirectoryString countryName,
DirectoryString localityName,
Asn1Sequence postalAddress)
{
if (postalAddress != null && postalAddress.Count > 6)
throw new ArgumentException("postal address must contain less than 6 strings");
this.countryName = countryName;
this.localityName = localityName;
this.postalAddress = postalAddress;
}
public SignerLocation(
DirectoryString countryName,
DirectoryString localityName,
DirectoryString[] postalAddress)
: this(countryName, localityName, new DerSequence(postalAddress))
{
}
public SignerLocation(
DerUtf8String countryName,
DerUtf8String localityName,
Asn1Sequence postalAddress)
: this(DirectoryString.GetInstance(countryName), DirectoryString.GetInstance(localityName), postalAddress)
{
}
public static SignerLocation GetInstance(object obj)
{
if (obj == null || obj is SignerLocation)
return (SignerLocation) obj;
return new SignerLocation(Asn1Sequence.GetInstance(obj));
}
public DirectoryString Country
{
get { return countryName; }
}
public DirectoryString Locality
{
get { return localityName; }
}
public DirectoryString[] GetPostal()
{
if (postalAddress == null)
return null;
return postalAddress.MapElements(element => DirectoryString.GetInstance(element.ToAsn1Object()));
}
public Asn1Sequence PostalAddress
{
get { return postalAddress; }
}
/**
* <pre>
* SignerLocation ::= SEQUENCE {
* countryName [0] DirectoryString OPTIONAL,
* localityName [1] DirectoryString OPTIONAL,
* postalAddress [2] PostalAddress OPTIONAL }
*
* PostalAddress ::= SEQUENCE SIZE(1..6) OF DirectoryString
*
* 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()
{
Asn1EncodableVector v = new Asn1EncodableVector(3);
v.AddOptionalTagged(true, 0, countryName);
v.AddOptionalTagged(true, 1, localityName);
v.AddOptionalTagged(true, 2, postalAddress);
return new DerSequence(v);
}
}
}
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