class TLS12SocketFactory extends SSLSocketFactory {

	public static final String TLS_1_2 = "TLSv1.2";

	private static final String[] TLS_1_2_ONLY = { TLS_1_2 };

	private final SSLSocketFactory delegate;

	public TLS12SocketFactory(SSLSocketFactory base) {
		this.delegate = base;
	}

	@Override
	public String[] getDefaultCipherSuites() {
		return delegate.getDefaultCipherSuites();
	}

	@Override
	public String[] getSupportedCipherSuites() {
		return delegate.getSupportedCipherSuites();
	}

	@Override
	public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
		return patch(delegate.createSocket(s, host, port, autoClose));
	}

	@Override
	public Socket createSocket(String host, int port) throws IOException {
		return patch(delegate.createSocket(host, port));
	}

	@Override
	public Socket createSocket(String host, int port, InetAddress localHost, int localPort)
			throws IOException {
		return patch(delegate.createSocket(host, port, localHost, localPort));
	}

	@Override
	public Socket createSocket(InetAddress host, int port) throws IOException {
		return patch(delegate.createSocket(host, port));
	}

	@Override
	public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort)
			throws IOException {
		return patch(delegate.createSocket(address, port, localAddress, localPort));
	}

	private Socket patch(Socket s) {
		if (s instanceof SSLSocket) ((SSLSocket) s).setEnabledProtocols(TLS_1_2_ONLY);
		return s;
	}
}