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Re: How to Run a Command on Screensaver Activation, Only After User Interaction that Session?

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On Thu, May 4, 2017 at 2:27 AM, Felix Dietrich <felix.dietrich@sperrhaken.
name> wrote:

> Kent West <westk@acu.edu> writes:
>
> > On Thu, Apr 27, 2017 at 9:27 PM, Felix Dietrich
> > <felix.dietrich@sperrhaken.name> wrote:
> >
> >     Kent West <westk@acu.edu> writes:
> >
> > What I needed (and have since solved - below) was help working out the
> > syntax of determining human interaction with X.
> >
> >     You may also want to consider that a user probably should not be
> >     able to
> >     edit the initialisation script (xinitrc)
> >
> > In my current setup, the current user can do either of these things,
> > but not permanently; his changes are lost upon a restart of X, so the
> > changing of .xinitrc is a non-issue.
>
> If the user chooses to overwrite the .xinitrc file the rsync command you
> use to reset the home directory at the beginning of that script (as part
> of wipe_profile.sh) will not be run.  Maybe you should reset the home
> directory at the end of the session (and also as part of the
> initialisation during boot in case of a sudden power loss).
> wipe_profile.sh also appears to be writeable by the user?
>

Yeah, I realized this a day or two later, and am updating my
process/documentation now; I'm instead running the rsync process as part of
my autologin/getty systemd unit as an ExecStartPre just before launching
agetty.

That's a good catch about the "wipe_profile.sh" being writable by the user;
I'll change that. Thanks for pointing that out.


> > The problem is that xinput reports several EVENTs on startup of the
> > utility, so I had to figure out a way to do finer-grained testing. My
> > solution is below.
> >
> > xinput test-xi2 --root | egrep -q "EVENT type 2|EVENT type 6"
>
> Event 2 is the KeyPress event, Event 6 is the MotionNotify event.  Maybe
> you should check for the ButtonPress event 4 as well to handle mouse
> clicks?  I found the events listed in "/usr/include/X11/X.h", which you
> can find as part of the x11proto-core-dev package.
>

I thought about that at the time, but figure any button press would also
entail a slight bit of mouse movement in 99.99% of the cases, but since
you've done the work for me in finding the event number (thanks! ;-) ),
I've now added it. Good idea!


>
> I like the usage of grep's "-q" switch; I had forgotten about it.
>
> --
> Felix Dietrich
>
>


-- 
Kent West                    <")))><
Westing Peacefully - http://kentwest.blogspot.com

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Thread

How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Kent West <westk@acu.edu> - 2017-04-27 00:00 +0200
  Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Kent West <westk@acu.edu> - 2017-04-27 18:20 +0200
    Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Felix Dietrich <felix.dietrich@sperrhaken.name> - 2017-04-28 04:50 +0200
      Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Kent West <westk@acu.edu> - 2017-04-29 16:20 +0200
        Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Felix Dietrich <felix.dietrich@sperrhaken.name> - 2017-05-04 09:50 +0200
          Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? Kent West <westk@acu.edu> - 2017-05-04 15:40 +0200
            Re: How to Run a Command on Screensaver Activation, Only After User  Interaction that Session? David Wright <deblis@lionunicorn.co.uk> - 2017-05-04 16:10 +0200

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