Hei, I know this kind of stuff has probably been asked a couple of times already, and did quite a bit of googling about it, but the answers i found were either unsatisfying or not specific enough to what i want to do:
I'm writing on a (Linux only) python daemon that runs as regular user. Under certain conditions the daemon should create a total screen lock as in gksu and should require input of the users password to release the lock. This is similar to what xscreensavers oder gnome-screensavers screenlock features do. The problem kicks in because it should work with shadowed passwords. I understand that shadowed passwords can be retrieved in Python 2.5, but only if the program runs as superuser (or has the necessary privileges for some other reason). This creates two problems: I'd like it to work in Python 2.4 and the daemon doesn't and shouldn't run as superuser. I'm wondering, though, if there isn't ANY way to have the password confirmed for the user that is already logged in. Please note the difference, i don't want to write some kind of login functionality. The user is already authenticated, i just want to have a typed in password checked agains the already logged in users password. Isn't there any way? A simple bash trick would help as well, but i couldn't find one. I don't have much of a clue about PAM, but i got the notion that it could be done via PyPAM? It's a pretty old package, which refrained me from looking into this option so far. Thanks for any help, André.
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