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using System;
using System.Collections;
using System.IO;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Tls.Crypto;
using Org.BouncyCastle.Tls.Crypto.Impl.BC;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
namespace Org.BouncyCastle.Tls.Tests
{
internal class MockSrpTlsClient
: SrpTlsClient
{
internal TlsSession m_session;
internal MockSrpTlsClient(TlsSession session, TlsSrpIdentity srpIdentity)
: base(new BcTlsCrypto(new SecureRandom()), srpIdentity)
{
this.m_session = session;
}
protected override IList GetProtocolNames()
{
IList protocolNames = new ArrayList();
protocolNames.Add(ProtocolName.Http_1_1);
protocolNames.Add(ProtocolName.Http_2_Tls);
return protocolNames;
}
public override TlsSession GetSessionToResume()
{
return m_session;
}
public override void NotifyAlertRaised(short alertLevel, short alertDescription, string message,
Exception cause)
{
TextWriter output = (alertLevel == AlertLevel.fatal) ? Console.Error : Console.Out;
output.WriteLine("TLS-SRP client raised alert: " + AlertLevel.GetText(alertLevel)
+ ", " + AlertDescription.GetText(alertDescription));
if (message != null)
{
output.WriteLine("> " + message);
}
if (cause != null)
{
output.WriteLine(cause);
}
}
public override void NotifyAlertReceived(short alertLevel, short alertDescription)
{
TextWriter output = (alertLevel == AlertLevel.fatal) ? Console.Error : Console.Out;
output.WriteLine("TLS-SRP client received alert: " + AlertLevel.GetText(alertLevel)
+ ", " + AlertDescription.GetText(alertDescription));
}
public override IDictionary GetClientExtensions()
{
IDictionary clientExtensions = TlsExtensionsUtilities.EnsureExtensionsInitialised(
base.GetClientExtensions());
{
/*
* NOTE: If you are copying test code, do not blindly set these extensions in your own client.
*/
TlsExtensionsUtilities.AddMaxFragmentLengthExtension(clientExtensions, MaxFragmentLength.pow2_9);
TlsExtensionsUtilities.AddPaddingExtension(clientExtensions, m_context.Crypto.SecureRandom.Next(16));
TlsExtensionsUtilities.AddTruncatedHmacExtension(clientExtensions);
}
return clientExtensions;
}
public override void NotifyServerVersion(ProtocolVersion serverVersion)
{
base.NotifyServerVersion(serverVersion);
Console.WriteLine("TLS-SRP client negotiated " + serverVersion);
}
public override TlsAuthentication GetAuthentication()
{
return new MyTlsAuthentication(m_context);
}
public override void NotifyHandshakeComplete()
{
base.NotifyHandshakeComplete();
ProtocolName protocolName = m_context.SecurityParameters.ApplicationProtocol;
if (protocolName != null)
{
Console.WriteLine("Client ALPN: " + protocolName.GetUtf8Decoding());
}
TlsSession newSession = m_context.Session;
if (newSession != null)
{
if (newSession.IsResumable)
{
byte[] newSessionID = newSession.SessionID;
string hex = ToHexString(newSessionID);
if (m_session != null && Arrays.AreEqual(m_session.SessionID, newSessionID))
{
Console.WriteLine("Client resumed session: " + hex);
}
else
{
Console.WriteLine("Client established session: " + hex);
}
this.m_session = newSession;
}
byte[] tlsServerEndPoint = m_context.ExportChannelBinding(ChannelBinding.tls_server_end_point);
if (null != tlsServerEndPoint)
{
Console.WriteLine("Client 'tls-server-end-point': " + ToHexString(tlsServerEndPoint));
}
byte[] tlsUnique = m_context.ExportChannelBinding(ChannelBinding.tls_unique);
Console.WriteLine("Client 'tls-unique': " + ToHexString(tlsUnique));
}
}
protected virtual string ToHexString(byte[] data)
{
return data == null ? "(null)" : Hex.ToHexString(data);
}
protected override ProtocolVersion[] GetSupportedVersions()
{
return ProtocolVersion.TLSv12.Only();
}
internal class MyTlsAuthentication
: ServerOnlyTlsAuthentication
{
private readonly TlsContext m_context;
internal MyTlsAuthentication(TlsContext context)
{
this.m_context = context;
}
public override void NotifyServerCertificate(TlsServerCertificate serverCertificate)
{
TlsCertificate[] chain = serverCertificate.Certificate.GetCertificateList();
Console.WriteLine("TLS-SRP client received server certificate chain of length " + chain.Length);
for (int i = 0; i != chain.Length; i++)
{
X509CertificateStructure entry = X509CertificateStructure.GetInstance(chain[i].GetEncoded());
// TODO Create fingerprint based on certificate signature algorithm digest
Console.WriteLine(" fingerprint:SHA-256 " + TlsTestUtilities.Fingerprint(entry) + " ("
+ entry.Subject + ")");
}
bool isEmpty = serverCertificate == null || serverCertificate.Certificate == null
|| serverCertificate.Certificate.IsEmpty;
if (isEmpty)
throw new TlsFatalAlert(AlertDescription.bad_certificate);
string[] trustedCertResources = new string[] { "x509-server-dsa.pem", "x509-server-rsa_pss_256.pem",
"x509-server-rsa_pss_384.pem", "x509-server-rsa_pss_512.pem", "x509-server-rsa-sign.pem" };
TlsCertificate[] certPath = TlsTestUtilities.GetTrustedCertPath(m_context.Crypto, chain[0],
trustedCertResources);
if (null == certPath)
throw new TlsFatalAlert(AlertDescription.bad_certificate);
TlsUtilities.CheckPeerSigAlgs(m_context, certPath);
}
};
}
}
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