123 lines
4.7 KiB
C#
123 lines
4.7 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
|
#pragma warning disable
|
|
using System;
|
|
using System.Collections.Generic;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509
|
|
{
|
|
/// <remarks>Generator for X.509 extensions</remarks>
|
|
public class X509ExtensionsGenerator
|
|
{
|
|
private Dictionary<DerObjectIdentifier, X509Extension> m_extensions =
|
|
new Dictionary<DerObjectIdentifier, X509Extension>();
|
|
private List<DerObjectIdentifier> m_ordering = new List<DerObjectIdentifier>();
|
|
|
|
private static readonly ISet<DerObjectIdentifier> m_dupsAllowed = new HashSet<DerObjectIdentifier>()
|
|
{
|
|
X509Extensions.SubjectAlternativeName,
|
|
X509Extensions.IssuerAlternativeName,
|
|
X509Extensions.SubjectDirectoryAttributes,
|
|
X509Extensions.CertificateIssuer
|
|
};
|
|
|
|
/// <summary>Reset the generator</summary>
|
|
public void Reset()
|
|
{
|
|
m_extensions = new Dictionary<DerObjectIdentifier, X509Extension>();
|
|
m_ordering = new List<DerObjectIdentifier>();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add an extension with the given oid and the passed in value to be included
|
|
/// in the OCTET STRING associated with the extension.
|
|
/// </summary>
|
|
/// <param name="oid">OID for the extension.</param>
|
|
/// <param name="critical">True if critical, false otherwise.</param>
|
|
/// <param name="extValue">The ASN.1 object to be included in the extension.</param>
|
|
public void AddExtension(DerObjectIdentifier oid, bool critical, Asn1Encodable extValue)
|
|
{
|
|
byte[] encoded;
|
|
try
|
|
{
|
|
encoded = extValue.GetDerEncoded();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
throw new ArgumentException("error encoding value: " + e);
|
|
}
|
|
|
|
this.AddExtension(oid, critical, encoded);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add an extension with the given oid and the passed in byte array to be wrapped
|
|
/// in the OCTET STRING associated with the extension.
|
|
/// </summary>
|
|
/// <param name="oid">OID for the extension.</param>
|
|
/// <param name="critical">True if critical, false otherwise.</param>
|
|
/// <param name="extValue">The byte array to be wrapped.</param>
|
|
public void AddExtension(DerObjectIdentifier oid, bool critical, byte[] extValue)
|
|
{
|
|
if (m_extensions.TryGetValue(oid, out X509Extension existingExtension))
|
|
{
|
|
if (!m_dupsAllowed.Contains(oid))
|
|
throw new ArgumentException("extension " + oid + " already added");
|
|
|
|
Asn1Sequence seq1 = Asn1Sequence.GetInstance(
|
|
Asn1OctetString.GetInstance(existingExtension.Value).GetOctets());
|
|
Asn1EncodableVector items = Asn1EncodableVector.FromEnumerable(seq1);
|
|
Asn1Sequence seq2 = Asn1Sequence.GetInstance(extValue);
|
|
|
|
foreach (Asn1Encodable enc in seq2)
|
|
{
|
|
items.Add(enc);
|
|
}
|
|
|
|
m_extensions[oid] = new X509Extension(existingExtension.IsCritical,
|
|
new DerOctetString(new DerSequence(items).GetEncoded()));
|
|
}
|
|
else
|
|
{
|
|
m_ordering.Add(oid);
|
|
m_extensions.Add(oid, new X509Extension(critical, new DerOctetString(extValue)));
|
|
}
|
|
}
|
|
|
|
public void AddExtensions(X509Extensions extensions)
|
|
{
|
|
foreach (DerObjectIdentifier ident in extensions.ExtensionOids)
|
|
{
|
|
X509Extension ext = extensions.GetExtension(ident);
|
|
AddExtension(ident, ext.critical, ext.Value.GetOctets());
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/// <summary>Return true if there are no extension present in this generator.</summary>
|
|
/// <returns>True if empty, false otherwise</returns>
|
|
public bool IsEmpty
|
|
{
|
|
get { return m_ordering.Count < 1; }
|
|
}
|
|
|
|
/// <summary>Generate an X509Extensions object based on the current state of the generator.</summary>
|
|
/// <returns>An <c>X509Extensions</c> object</returns>
|
|
public X509Extensions Generate()
|
|
{
|
|
return new X509Extensions(m_ordering, m_extensions);
|
|
}
|
|
|
|
internal void AddExtension(DerObjectIdentifier oid, X509Extension x509Extension)
|
|
{
|
|
if (m_extensions.ContainsKey(oid))
|
|
throw new ArgumentException("extension " + oid + " already added");
|
|
|
|
m_ordering.Add(oid);
|
|
m_extensions.Add(oid, x509Extension);
|
|
}
|
|
}
|
|
}
|
|
#pragma warning restore
|
|
#endif
|