Update PHPGangsta code snippet and de-Google

Hello,

I just compare your code with the original code from @PHPGangsta and I noticed one particular difference. This is the currently used getQRCodeGoogleUrl function:

    public function getQRCodeGoogleUrl($name, $secret, $title=null) {
        $urlencoded = urlencode('otpauth://totp/'.$name.'?secret='.$secret.'');
    if(isset($title)) $urlencoded .= urlencode('&issuer='.$title);
        return 'https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl='.$urlencoded.'';
    }

...and this is the current version from PHPGangsta:

    public function getQRCodeGoogleUrl($name, $secret, $title = null, $params = array())
    {
        $width = !empty($params['width']) && (int) $params['width'] > 0 ? (int) $params['width'] : 200;
        $height = !empty($params['height']) && (int) $params['height'] > 0 ? (int) $params['height'] : 200;
        $level = !empty($params['level']) && array_search($params['level'], array('L', 'M', 'Q', 'H')) !== false ? $params['level'] : 'M';

        $urlencoded = urlencode('otpauth://totp/'.$name.'?secret='.$secret.'');
        if (isset($title)) {
            $urlencoded .= urlencode('&issuer='.urlencode($title));
        }

        return "https://api.qrserver.com/v1/create-qr-code/?data=$urlencoded&size=${width}x${height}&ecc=$level";
    }

I think, the improved version from PHPGangsta is much better, also because it doesn't send my data to Google. Can you please update your code to reflect the changes PHPGangsta made?

Also, it's worth considering to say "TOTP Authenticator" instead of "Google Authenticator". That is more correct, because the functionality is unrelated to Google.

And last but not least: Can you please recommend a non-Google app for authentication in the front-end? Open Authenticator is my personal preference.

Thank you!

alexandregz / twofactor_gauthenticator

Update PHPGangsta code snippet and de-Google #200