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Java SDK for Moip v2 APIs
package br.com.moip.ssl;
import javax.net.ssl.*;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
// http://stackoverflow.com/questions/1037590/which-cipher-suites-to-enable-for-ssl-socket/23365536#23365536
public class SSLSupport extends SSLSocketFactory {
private SSLContext mCtx;
private String[] mCiphers;
private String[] mProtocols;
public SSLSupport() throws NoSuchAlgorithmException, KeyManagementException, IOException {
initSSLSocketFactoryEx(null,null,null);
}
public SSLSupport(KeyManager[] km, TrustManager[] tm, SecureRandom random) throws NoSuchAlgorithmException, KeyManagementException, IOException {
initSSLSocketFactoryEx(km, tm, random);
}
public SSLSupport(SSLContext ctx) throws NoSuchAlgorithmException, KeyManagementException, IOException {
initSSLSocketFactoryEx(ctx);
}
public String[] getDefaultCipherSuites()
{
return mCiphers;
}
public String[] getSupportedCipherSuites()
{
return mCiphers;
}
public String[] getDefaultProtocols()
{
return mProtocols;
}
public String[] getSupportedProtocols()
{
return mProtocols;
}
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException
{
SSLSocketFactory factory = mCtx.getSocketFactory();
SSLSocket ss = (SSLSocket)factory.createSocket(s, host, port, autoClose);
ss.setEnabledProtocols(mProtocols);
ss.setEnabledCipherSuites(mCiphers);
return ss;
}
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException
{
SSLSocketFactory factory = mCtx.getSocketFactory();
SSLSocket ss = (SSLSocket)factory.createSocket(address, port, localAddress, localPort);
ss.setEnabledProtocols(mProtocols);
ss.setEnabledCipherSuites(mCiphers);
return ss;
}
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException
{
SSLSocketFactory factory = mCtx.getSocketFactory();
SSLSocket ss = (SSLSocket)factory.createSocket(host, port, localHost, localPort);
ss.setEnabledProtocols(mProtocols);
ss.setEnabledCipherSuites(mCiphers);
return ss;
}
public Socket createSocket(InetAddress host, int port) throws IOException
{
SSLSocketFactory factory = mCtx.getSocketFactory();
SSLSocket ss = (SSLSocket)factory.createSocket(host, port);
ss.setEnabledProtocols(mProtocols);
ss.setEnabledCipherSuites(mCiphers);
return ss;
}
public Socket createSocket(String host, int port) throws IOException
{
SSLSocketFactory factory = mCtx.getSocketFactory();
SSLSocket ss = (SSLSocket)factory.createSocket(host, port);
ss.setEnabledProtocols(mProtocols);
ss.setEnabledCipherSuites(mCiphers);
return ss;
}
private void initSSLSocketFactoryEx(KeyManager[] km, TrustManager[] tm, SecureRandom random)
throws NoSuchAlgorithmException, KeyManagementException, IOException {
mCtx = SSLContext.getInstance("TLS");
mCtx.init(km, tm, random);
mProtocols = getProtocolList();
mCiphers = getCipherList();
}
private void initSSLSocketFactoryEx(SSLContext ctx)
throws NoSuchAlgorithmException, KeyManagementException, IOException {
mCtx = ctx;
mProtocols = getProtocolList();
mCiphers = getCipherList();
}
protected String[] getProtocolList() throws IOException {
String[] preferredProtocols = { "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" };
String[] availableProtocols = null;
SSLSocket socket = null;
try
{
SSLSocketFactory factory = mCtx.getSocketFactory();
socket = (SSLSocket)factory.createSocket();
availableProtocols = socket.getSupportedProtocols();
Arrays.sort(availableProtocols);
}
catch(Exception e)
{
return new String[]{ "TLSv1" };
}
finally
{
if(socket != null)
socket.close();
}
List aa = new ArrayList();
for(int i = 0; i < preferredProtocols.length; i++)
{
int idx = Arrays.binarySearch(availableProtocols, preferredProtocols[i]);
if(idx >= 0)
aa.add(preferredProtocols[i]);
}
return aa.toArray(new String[0]);
}
protected String[] getCipherList()
{
String[] preferredCiphers = {
// *_CHACHA20_POLY1305 are 3x to 4x faster than existing cipher suites.
// http://googleonlinesecurity.blogspot.com/2014/04/speeding-up-and-strengthening-https.html
// Use them if available. Normative names can be found at (TLS spec depends on IPSec spec):
// http://tools.ietf.org/html/draft-nir-ipsecme-chacha20-poly1305-01
// http://tools.ietf.org/html/draft-mavrogiannopoulos-chacha-tls-02
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_ECDSA_WITH_CHACHA20_SHA",
"TLS_ECDHE_RSA_WITH_CHACHA20_SHA",
"TLS_DHE_RSA_WITH_CHACHA20_POLY1305",
"TLS_RSA_WITH_CHACHA20_POLY1305",
"TLS_DHE_RSA_WITH_CHACHA20_SHA",
"TLS_RSA_WITH_CHACHA20_SHA",
// Done with bleeding edge, back to TLS v1.2 and below
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
"TLS_DHE_DSS_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_DHE_DSS_WITH_AES_128_GCM_SHA256",
// TLS v1.0 (with some SSLv3 interop)
"TLS_DHE_RSA_WITH_AES_256_CBC_SHA384",
"TLS_DHE_DSS_WITH_AES_256_CBC_SHA256",
"TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_DHE_DSS_WITH_AES_128_CBC_SHA",
"TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA",
"TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA",
"SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA",
"SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA",
// RSA key transport sucks, but they are needed as a fallback.
// For example, microsoft.com fails under all versions of TLS
// if they are not included. If only TLS 1.0 is available at
// the client, then google.com will fail too. TLS v1.3 is
// trying to deprecate them, so it will be interesteng to see
// what happens.
"TLS_RSA_WITH_AES_256_CBC_SHA256",
"TLS_RSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_128_CBC_SHA256",
"TLS_RSA_WITH_AES_128_CBC_SHA"
};
String[] availableCiphers = null;
try
{
SSLSocketFactory factory = mCtx.getSocketFactory();
availableCiphers = factory.getSupportedCipherSuites();
Arrays.sort(availableCiphers);
}
catch(Exception e)
{
return new String[] {
"TLS_DHE_DSS_WITH_AES_128_CBC_SHA",
"TLS_DHE_DSS_WITH_AES_256_CBC_SHA",
"TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_DHE_RSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_256_CBC_SHA256",
"TLS_RSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_128_CBC_SHA256",
"TLS_RSA_WITH_AES_128_CBC_SHA",
"TLS_EMPTY_RENEGOTIATION_INFO_SCSV"
};
}
List aa = new ArrayList();
for(int i = 0; i < preferredCiphers.length; i++)
{
int idx = Arrays.binarySearch(availableCiphers, preferredCiphers[i]);
if(idx >= 0)
aa.add(preferredCiphers[i]);
}
aa.add("TLS_EMPTY_RENEGOTIATION_INFO_SCSV");
return aa.toArray(new String[0]);
}
}