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package org.spongycastle.crypto.tls.test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.InetAddress;
import java.net.Socket;
import java.security.SecureRandom;
import java.util.Hashtable;
import java.util.Vector;
import org.spongycastle.asn1.x509.Certificate;
import org.spongycastle.crypto.tls.AlertLevel;
import org.spongycastle.crypto.tls.CertificateRequest;
import org.spongycastle.crypto.tls.CipherSuite;
import org.spongycastle.crypto.tls.ClientCertificateType;
import org.spongycastle.crypto.tls.DefaultTlsClient;
import org.spongycastle.crypto.tls.MaxFragmentLength;
import org.spongycastle.crypto.tls.ProtocolVersion;
import org.spongycastle.crypto.tls.SignatureAlgorithm;
import org.spongycastle.crypto.tls.SignatureAndHashAlgorithm;
import org.spongycastle.crypto.tls.TlsAuthentication;
import org.spongycastle.crypto.tls.TlsClient;
import org.spongycastle.crypto.tls.TlsClientProtocol;
import org.spongycastle.crypto.tls.TlsCredentials;
import org.spongycastle.crypto.tls.TlsExtensionsUtils;
import org.spongycastle.crypto.tls.TlsSession;
import org.spongycastle.util.Arrays;
import org.spongycastle.util.encoders.Hex;
/**
* A simple test designed to conduct a TLS handshake with an external TLS server.
* <p/>
* Please refer to GnuTLSSetup.txt or OpenSSLSetup.txt, and x509-*.pem files in this package for
* help configuring an external TLS server.
*/
public class TlsClientTest
{
private static final SecureRandom secureRandom = new SecureRandom();
public static void main(String[] args)
throws Exception
{
InetAddress address = InetAddress.getLocalHost();
int port = 5556;
long time1 = System.currentTimeMillis();
MyTlsClient client = new MyTlsClient(null);
TlsClientProtocol protocol = openTlsConnection(address, port, client);
protocol.close();
long time2 = System.currentTimeMillis();
System.out.println("Elapsed 1: " + (time2 - time1) + "ms");
client = new MyTlsClient(client.getSessionToResume());
protocol = openTlsConnection(address, port, client);
long time3 = System.currentTimeMillis();
System.out.println("Elapsed 2: " + (time3 - time2) + "ms");
OutputStream output = protocol.getOutputStream();
output.write("GET / HTTP/1.1\r\n\r\n".getBytes("UTF-8"));
output.flush();
InputStream input = protocol.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
String line;
while ((line = reader.readLine()) != null)
{
System.out.println(">>> " + line);
}
protocol.close();
}
static TlsClientProtocol openTlsConnection(InetAddress address, int port, TlsClient client) throws IOException
{
Socket s = new Socket(address, port);
TlsClientProtocol protocol = new TlsClientProtocol(s.getInputStream(), s.getOutputStream(), secureRandom);
protocol.connect(client);
return protocol;
}
static class MyTlsClient
extends DefaultTlsClient
{
TlsSession session;
MyTlsClient(TlsSession session)
{
this.session = session;
}
public TlsSession getSessionToResume()
{
return this.session;
}
public void notifyAlertRaised(short alertLevel, short alertDescription, String message, Exception cause)
{
PrintStream out = (alertLevel == AlertLevel.fatal) ? System.err : System.out;
out.println("TLS client raised alert (AlertLevel." + alertLevel + ", AlertDescription." + alertDescription
+ ")");
if (message != null)
{
out.println(message);
}
if (cause != null)
{
cause.printStackTrace(out);
}
}
public void notifyAlertReceived(short alertLevel, short alertDescription)
{
PrintStream out = (alertLevel == AlertLevel.fatal) ? System.err : System.out;
out.println("TLS client received alert (AlertLevel." + alertLevel + ", AlertDescription."
+ alertDescription + ")");
}
public Hashtable getClientExtensions() throws IOException
{
Hashtable clientExtensions = TlsExtensionsUtils.ensureExtensionsInitialised(super.getClientExtensions());
TlsExtensionsUtils.addMaxFragmentLengthExtension(clientExtensions, MaxFragmentLength.pow2_9);
TlsExtensionsUtils.addTruncatedHMacExtension(clientExtensions);
// For testing draft-gutmann-tls-encrypt-then-mac
// clientExtensions.put(Integers.valueOf(0x42), TlsExtensionsUtils.createEmptyExtensionData());
return clientExtensions;
}
public void notifyServerVersion(ProtocolVersion serverVersion) throws IOException
{
super.notifyServerVersion(serverVersion);
System.out.println("Negotiated " + serverVersion);
}
public TlsAuthentication getAuthentication()
throws IOException
{
return new TlsAuthentication()
{
public void notifyServerCertificate(org.spongycastle.crypto.tls.Certificate serverCertificate)
throws IOException
{
Certificate[] chain = serverCertificate.getCertificateList();
System.out.println("Received server certificate chain of length " + chain.length);
for (int i = 0; i != chain.length; i++)
{
Certificate entry = chain[i];
// TODO Create fingerprint based on certificate signature algorithm digest
System.out.println(" fingerprint:SHA-256 " + TlsTestUtils.fingerprint(entry) + " ("
+ entry.getSubject() + ")");
}
}
public TlsCredentials getClientCredentials(CertificateRequest certificateRequest)
throws IOException
{
short[] certificateTypes = certificateRequest.getCertificateTypes();
if (certificateTypes == null || !Arrays.contains(certificateTypes, ClientCertificateType.rsa_sign))
{
return null;
}
SignatureAndHashAlgorithm signatureAndHashAlgorithm = null;
Vector sigAlgs = certificateRequest.getSupportedSignatureAlgorithms();
if (sigAlgs != null)
{
for (int i = 0; i < sigAlgs.size(); ++i)
{
SignatureAndHashAlgorithm sigAlg = (SignatureAndHashAlgorithm)
sigAlgs.elementAt(i);
if (sigAlg.getSignature() == SignatureAlgorithm.rsa)
{
signatureAndHashAlgorithm = sigAlg;
break;
}
}
if (signatureAndHashAlgorithm == null)
{
return null;
}
}
// TODO Create a distinct client certificate for use here
return TlsTestUtils.loadSignerCredentials(context, new String[] { "x509-server.pem", "x509-ca.pem" },
"x509-server-key.pem", signatureAndHashAlgorithm);
}
};
}
public void notifyHandshakeComplete() throws IOException
{
super.notifyHandshakeComplete();
TlsSession newSession = context.getResumableSession();
if (newSession != null)
{
byte[] newSessionID = newSession.getSessionID();
String hex = Hex.toHexString(newSessionID);
if (this.session != null && Arrays.areEqual(this.session.getSessionID(), newSessionID))
{
System.out.println("Resumed session: " + hex);
}
else
{
System.out.println("Established session: " + hex);
}
this.session = newSession;
}
}
}
}
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