Example usage for javax.net.ssl HttpsURLConnection getServerCertificates

Introduction

In this page you can find the example usage for javax.net.ssl HttpsURLConnection getServerCertificates.

Prototype

public abstract java.security.cert.Certificate[] getServerCertificates() throws SSLPeerUnverifiedException;

Source Link

Document

Returns the server's certificate chain which was established as part of defining the session.

Usage

From source file:homenetapp.HomeNetAppGui.java

private void checkClientCert() {
    try {/*from   w  w w.  j  a v  a  2s .c om*/
        URL url = new URL("https://" + homenetapp.clientServer + "/");
        HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
        conn.connect();
        Certificate[] certs = conn.getServerCertificates();

        //System.out.println("Cert Chain Length: "+certs.length);

        Certificate c = certs[0];
        X509Certificate xc = (X509Certificate) c;

        String[] from = homenetapp.splitTokens(xc.getIssuerX500Principal().getName(), "=, ");
        String[] to = homenetapp.splitTokens(xc.getSubjectX500Principal().getName(), "=, ");

        certPropertiesLabel.setText("<html>Issued by: " + from[1] + "<br>For: " + to[1] + "<br>Expires: "
                + xc.getNotAfter() + "</html>");

        System.out.println("Cert: " + c.getType());

        System.out.println("Not After: " + xc.getNotAfter());
        System.out.println("Subject DN: " + xc.getSubjectX500Principal());
        System.out.println("Issuer DN: " + xc.getIssuerX500Principal());
        System.out.println("getSigAlgName: " + xc.getSigAlgName());

    } catch (Exception e) {
        certPropertiesLabel.setText("Failed to load certficate");
    }

}

From source file:com.codename1.impl.android.AndroidImplementation.java

@Override
public String[] getSSLCertificates(Object connection, String url) throws IOException {
    if (connection instanceof HttpsURLConnection) {
        HttpsURLConnection conn = (HttpsURLConnection) connection;

        try {/*from  w w  w.  ja  va  2 s . co m*/
            conn.connect();
            java.security.cert.Certificate[] certs = conn.getServerCertificates();
            String[] out = new String[certs.length];
            int i = 0;
            for (java.security.cert.Certificate cert : certs) {
                MessageDigest md = MessageDigest.getInstance("SHA1");
                md.update(cert.getEncoded());
                out[i++] = "SHA1:" + dumpHex(md.digest());
            }
            return out;
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    return new String[0];

}