HTTPClient-1.4.2: Explanation needed for Custom SSL Context Example
This is the example for Custom SSL Context from HttpClient-4.x documentation: http://hc.apache.org/httpcomponents-client-ga/examples.html
Note: removing comments for brevity.
package org.apache.http.examples.client;
import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
/**
* This example demonstrates how to create secure connections with a custom SSL
* context.
*/
public class ClientCustomSSL {
public final static void main(String[] args) throws Exception {
DefaultHttpClient httpclient = new DefaultHttpClient();
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
FileInputStream instream = new FileInputStream(new File("my.keystore"));
try {
trustStore.load(instream, "nopassword".toCharArray());
} finally {
try { instream.close(); } catch (Exception ignore) {}
}
SSLSocketFactory socketFactory = new SSLSocketFactory(trustStore);
Scheme sch = new Scheme("https", 443, socketFactory);
httpclient.getConnectionManager().getSchemeRegistry().register(sch);
HttpGet httpget = new开发者_如何学运维 HttpGet("https://localhost/");
System.out.println("executing request" + httpget.getRequestLine());
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (entity != null) {
System.out.println("Response content length: " + entity.getContentLength());
}
EntityUtils.consume(entity);
} finally {
// When HttpClient instance is no longer needed,
// shut down the connection manager to ensure
// immediate deallocation of all system resources
httpclient.getConnectionManager().shutdown();
}
}
}
I assume my.keystore is the location of the trustStore where CA root certificate is imported to: /Library/Java/Home/lib/security/cacerts and the default password for this truststore is "changeit".
My question is: where should I put my client certificates in order to communicate with server. I've both ways SSL setup.
Above example code doesn't give any hint about client certificates: pem/p12 and key files.
Any ideas/thoughts would be appreciated !!!
-Bianca
There are several constructors for SSLSocketFactory. The constructor that the example is using takes only a custom trustStore. You need to use one of the constructors that takes a custom keyStore (which contains your client certificates).
You only need a custom trustStore if the target server is using a self-signed certificate.
This example initializes a SSLContext with a custom trustStore and keyStore:
public static void main(String[] args) throws Exception {
DefaultHttpClient httpClient = new DefaultHttpClient();
try {
SSLContext ctx = SSLContext.getInstance("TLS");
TrustManager[] trustManagers = getTrustManagers("jks", new FileInputStream(new File("cacerts")), "changeit");
KeyManager[] keyManagers = getKeyManagers("pkcs12", new FileInputStream(new File("clientCert.pfx")), "password");
ctx.init(keyManagers, trustManagers, new SecureRandom());
SSLSocketFactory factory = new SSLSocketFactory(ctx, new StrictHostnameVerifier());
ClientConnectionManager manager = httpClient.getConnectionManager();
manager.getSchemeRegistry().register(new Scheme("https", 443, factory));
//as before
}
}
protected static KeyManager[] getKeyManagers(String keyStoreType, InputStream keyStoreFile, String keyStorePassword) throws Exception {
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
keyStore.load(keyStoreFile, keyStorePassword.toCharArray());
KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmf.init(keyStore, keyStorePassword.toCharArray());
return kmf.getKeyManagers();
}
protected static TrustManager[] getTrustManagers(String trustStoreType, InputStream trustStoreFile, String trustStorePassword) throws Exception {
KeyStore trustStore = KeyStore.getInstance(trustStoreType);
trustStore.load(trustStoreFile, trustStorePassword.toCharArray());
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(trustStore);
return tmf.getTrustManagers();
}
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