Since the JavaFX integrated browser does not work reliably for recaptcha and in general does not behave like standard browsers, I now use an external browser for the logins. The dependency to javafx-web has been removed.
The external browser is based on electron, which uses chromium as internal browser. The implementation can be found at https://github.com/0xboobface/ctbrec-minimal-browser
The browser is a minimal browser, which only shows the web page content without any other controls. It is launched by ctbrec in a new process and remote controlled over a socket connection. I first tried to control it via
stdin/stdout, but it turns out, that stdin is not supported by electron on windows.
This is the first version with working downloads for SD and HD. These
dowloads only work, if you are logged in. So at the moment you have to set the
session ID in the settings to make this work. The session ID can be copied
from a valid session in a browser.
0xboobface