Apache HttpClient on Android producing CertPathVal

Question

I'm developing an Android application for accessing some battle.net (https://eu.battle.net) account data (for World of Warcraft) and I'm using the org.apache.http.client.HttpClient to do so.

This is the code I'm using:

 public static final String USER_AGENT = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 (.NET CLR 3.5.30729)";

  public static class MyHttpClient extends DefaultHttpClient {

    final Context context;

    public MyHttpClient(Context context) {
      super();
      this.context = context;
    }

    @Override
    protected ClientConnectionManager createClientConnectionManager() {
      SchemeRegistry registry = new SchemeRegistry();
      registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
      // Register for port 443 our SSLSocketFactory with our keystore
      // to the ConnectionManager
      registry.register(new Scheme("https", newSslSocketFactory(), 443));
      return new SingleClientConnManager(getParams(), registry);
    }

    private SSLSocketFactory newSslSocketFactory() {
      try {
        // Get an instance of the Bouncy Castle KeyStore format
        KeyStore trusted = KeyStore.getInstance("BKS");
        // Get the raw resource, which contains the keystore with
        // your trusted certificates (root and any intermediate certs)
        InputStream in = context.getResources().openRawResource(R.raw.battlenetkeystore);
        try {
          // Initialize the keystore with the provided trusted certificates
          // Also provide the password of the keystore
          trusted.load(in, "mysecret".toCharArray());
        } finally {
          in.close();
        }
        // Pass the keystore to the SSLSocketFactory. The factory is responsible
        // for the verification of the server certificate.
        SSLSocketFactory sf = new SSLSocketFactory(trusted);
        // Hostname verification from certificate
        // http://hc.apache.org/httpcomponents-client-ga/tutorial/html/connmgmt.html#d4e506
        sf.setHostnameVerifier(SSLSocketFactory.STRICT_HOSTNAME_VERIFIER);
        return sf;
      } catch (Exception e) {
        throw new AssertionError(e);
      }
    }
  }

  private static void maybeCreateHttpClient(Context context) {
    if (mHttpClient == null) {
      mHttpClient = new MyHttpClient(context);

      final HttpParams params = mHttpClient.getParams();
      HttpConnectionParams.setConnectionTimeout(params, REGISTRATION_TIMEOUT);
      HttpConnectionParams.setSoTimeout(params, REGISTRATION_TIMEOUT);
      ConnManagerParams.setTimeout(params, REGISTRATION_TIMEOUT);
      Log.d(TAG, LEAVE + "maybeCreateHttpClient()");
    }
  }

public static boolean authenticate(String username, String password, Handler handler,
      final Context context) {

    final HttpResponse resp;

    final ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
    params.add(new BasicNameValuePair(PARAM_USERNAME, username));
    params.add(new BasicNameValuePair(PARAM_PASSWORD, password));

    HttpEntity entity = null;
    try {
      entity = new UrlEncodedFormEntity(params);
    } catch (final UnsupportedEncodingException e) {
      // this should never happen.
      throw new AssertionError(e);
    }

    final HttpPost post = new HttpPost(THE_URL);
    post.addHeader(entity.getContentType());
    post.addHeader("User-Agent", USER_AGENT);
    post.setEntity(entity);

    maybeCreateHttpClient(context);

    if (mHttpClient == null) {
      return false;
    }

    try {
      resp = mHttpClient.execute(post);
    } catch (final IOException e) {
      Log.e(TAG, "IOException while authenticating", e);
      return false;
    } finally {
    }
}

The keystore is retrieved (by OpenSSL) like this:

openssl s_client -connect eu.battle.net:443 -showcerts

I have compared the certificates that command produced (http://vipsaran.webs.com/openssl_output.txt) with ones I exported from Firefox (http://vipsaran.webs.com/Firefox_output.zip) and they are the same.

By following advice on this blog, I have setup the above code and imported the (root and intermediate) certs to a keystore (battlenetkeystore.bks) which is used for HttpClient.

This are the commands I used for importing the certs to the keystore:

keytool -importcert -v -file ~/lib/ThawteSSLCA.crt -alias thawtesslca -keystore ~/lib/battlenetkeystore.bks -provider org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath ~/lib/bcprov-jdk16-145.jar -storetype BKS -storepass mysecret -keypass mysecret -keyalg "RSA" -sigalg "SHA1withRSA"
keytool -importcert -v -file ~/lib/thawtePrimaryRootCA.crt -alias thawteprimaryrootca -keystore ~/lib/battlenetkeystore.bks -provider org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath ~/lib/bcprov-jdk16-145.jar -storetype BKS -storepass mysecret -keypass mysecret -keyalg "RSA" -sigalg "SHA1withRSA"

Btw. I have also tried keytool -import without the -keyalg "RSA" -sigalg "SHA1withRSA", but with no change.

The problem is that I'm getting this error:

javax.net.ssl.SSLException: Not trusted server certificate
    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:371)
    at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:92)
    at org.apache.http.conn.ssl.SSLSocketFactory.createSocket(SSLSocketFactory.java:381)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:164)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
    at org.homedns.saran.android.wowcalendarsync.network.NetworkUtilities.authenticateWithPass(NetworkUtilities.java:346)
    at org.homedns.saran.android.wowcalendarsync.network.NetworkUtilities$1.run(NetworkUtilities.java:166)
    at org.homedns.saran.android.wowcalendarsync.network.NetworkUtilities$5.run(NetworkUtilities.java:278)
Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: IssuerName(CN=thawte Primary Root CA, OU="(c) 2006 thawte, Inc. - For authorized use only", OU=Certification Services Division, O="thawte, Inc.", C=US) does not match SubjectName(CN=Thawte SSL CA, O="Thawte, Inc.", C=US) of signing certificate
    at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:168)
    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:366)
    ... 12 more
Caused by: java.security.cert.CertPathValidatorException: IssuerName(CN=thawte Primary Root CA, OU="(c) 2006 thawte, Inc. - For authorized use only", OU=Certification Services Division, O="thawte, Inc.", C=US) does not match SubjectName(CN=Thawte SSL CA, O="Thawte, Inc.", C=US) of signing certificate
    at org.bouncycastle.jce.provider.PKIXCertPathValidatorSpi.engineValidate(PKIXCertPathValidatorSpi.java:373)
    at java.security.cert.CertPathValidator.validate(CertPathValidator.java:202)
    at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:164)
    ... 13 more

and I can't figure a way to solve it. Tried importing the certs into the keystore in different order, aso. but nothing worked.

Please help (and please focus on the solutions based on the Android's Apache HttpClient only).

Answer 1

I don't have a solution to fix the path. But I have a solution to ignore certs. I use this method to ignore self signed certs in development. See if it helps.

 protected final static ClientConnectionManager clientConnectionManager;
    protected final static HttpParams params;
    // ......
    SchemeRegistry schemeRegistry = new SchemeRegistry();
    schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
    schemeRegistry.register(new Scheme("https", new EasySSLSocketFactory(), 443));
    params = new BasicHttpParams();
    params.setParameter(ConnManagerPNames.MAX_TOTAL_CONNECTIONS, 1);
    params.setParameter(ConnManagerPNames.MAX_CONNECTIONS_PER_ROUTE, new ConnPerRouteBean(1));
    params.setParameter(HttpProtocolParams.USE_EXPECT_CONTINUE, false);
    HttpProtocolParams.setUserAgent(params, "android-client-v1.0");
    HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
    HttpProtocolParams.setContentCharset(params, "utf8");
    clientConnectionManager = new ThreadSafeClientConnManager(params, schemeRegistry);
    // and later do this
    HttpClient client = new DefaultHttpClient(clientConnectionManager, params);
    HttpGet request = new HttpGet(uri);
    HttpResponse response = client.execute(request);