Test for unpinning

unpinned.java

/**
 * Logs if HttpsURLConnection.setHostnameVerifier() is working or not.
 * Also returns boolean to that effect.
 */
static boolean testHostnameVerifier() {
    boolean isWorking = false;
    HttpsURLConnection connection = null;
    try {
        URL aUrl = new URL("https://firebase.google.com");
        // Get our HTTPS connection object
        connection = (HttpsURLConnection) aUrl.openConnection();
        // Register a hostname verifier which always fails
        connection.setHostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                Log.i("testHostnameVerifier", "CALLED");
                return false;
            }
        });
        connection.connect();
        // Should never get here with the HostnameVerifier we just set.
        Log.i("testHostnameVerifier", "HostnameVerifer NOT WORKING");

    } catch (SSLPeerUnverifiedException ex) {
        // This exception happens with hostname verifier returns false
        Log.i("testHostnameVerifier", "HostnameVerifer IS WORKING");
        isWorking = true;
    } catch(Exception ex) {
        Log.e("testHostnameVerifier", ex.getMessage());
    }

    if(connection != null)
        connection.disconnect();

    return isWorking;
}