I already tried to automate this using curl, which has support for cookies, but I was also required to provide the csrf token. Logging in was not required as far as I could determine.
Using a real browser that doesn't require a GUI and is thus suitable for automation (selenium comes to mind) is probably a solution that I can get to work, but goes too far for its purpose anf what it does IMHO.
I think I'll have to accept that every now and then, I'll have to visit the page manually from my browser and submit the node name there. I hope the need for this page will be rendered unnecessary in the future.
Thank you all for your responses!
