Here is the solution, based on the HttpSnoop server example from the netty project.
When setting up the client side pipeline, the ssl engine must be set as follows:
public ChannelPipeline getPipeline() throws Exception {
// Create a default pipeline implementation.
ChannelPipeline pipeline = pipeline();
// Uncomment the following line if you want HTTPS
SSLEngine engine = SecureChatSslContextFactory.getServerContext().createSSLEngine();
engine.setUseClientMode(false);
engine.setNeedClientAuth(true);
pipeline.addLast("ssl", new SslHandler(engine));
pipeline.addLast("decoder", new HttpRequestDecoder());
pipeline.addLast("logger", new RequestAuditLogger());
// Uncomment the following line if you don't want to handle HttpChunks.
pipeline.addLast("aggregator", new HttpChunkAggregator(1048576));
pipeline.addLast("outputLogger", new ResponseAuditLogger());
pipeline.addLast("encoder", new HttpResponseEncoder());
// Remove the following line if you don't want automatic content compression.
pipeline.addLast("deflater", new HttpContentCompressor());
pipeline.addLast("handler", new HttpSnoopServerHandler());
return pipeline;
}
}
Then your SSLContext must be modified as follows to set up a trust store in addition to a keystore (SecureChatSslContextFactory):
public final class SecureChatSslContextFactory {
private static Logger logger = LoggerFactory.getLogger(SecureChatSslContextFactory.class);
private static final String PROTOCOL = "TLS";
private static final SSLContext SERVER_CONTEXT;
private static final SSLContext CLIENT_CONTEXT;
static {
SSLContext serverContext = null;
SSLContext clientContext = null;
// get keystore and trustore locations and passwords
String keyStoreLocation = System.getProperty("javax.net.ssl.keyStore");
String keyStorePassword = System.getProperty("javax.net.ssl.keyStorePassword");
String trustStoreLocation = System.getProperty("javax.net.ssl.trustStore");
String trustStorePassword = System.getProperty("javax.net.ssl.trustStorePassword");
try {
KeyStore ks = KeyStore.getInstance("JKS");
ks.load(KeyStoreStreamManager.asInputStream(keyStoreLocation),
keyStorePassword.toCharArray());
// Set up key manager factory to use our key store
KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmf.init(ks, keyStorePassword.toCharArray());
// truststore
KeyStore ts = KeyStore.getInstance("JKS");
ts.load(KeyStoreStreamManager.asInputStream(trustStoreLocation),
trustStorePassword.toCharArray());
// set up trust manager factory to use our trust store
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(ts);
// Initialize the SSLContext to work with our key managers.
serverContext = SSLContext.getInstance(PROTOCOL);
serverContext.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
} catch (Exception e) {
throw new Error(
"Failed to initialize the server-side SSLContext", e);
}
try {
clientContext = SSLContext.getInstance(PROTOCOL);
clientContext.init(null, SecureChatTrustManagerFactory.getTrustManagers(), null);
} catch (Exception e) {
throw new Error(
"Failed to initialize the client-side SSLContext", e);
}
SERVER_CONTEXT = serverContext;
CLIENT_CONTEXT = clientContext;
}
public static SSLContext getServerContext() {
return SERVER_CONTEXT;
}
public static SSLContext getClientContext() {
return CLIENT_CONTEXT;
}
private SecureChatSslContextFactory() {
// Unused
}
}
