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| -rw-r--r-- | LICENSE | 26 | ||||
| -rw-r--r-- | README | 11 | ||||
| -rwxr-xr-x | lockall-xscreensaver | 111 |
3 files changed, 148 insertions, 0 deletions
@@ -0,0 +1,26 @@ +Copyright 2024 Wolfgang 'datenwolf' Draxinger + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this +list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, +this list of conditions and the following disclaimer in the documentation +and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its contributors +may be used to endorse or promote products derived from this software without +specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. @@ -0,0 +1,11 @@ +Issue `xscreensaver-command -lock` to all instances of xscreensaver +running on the host it's executed on, to which the user running this +script has permissions to access: + +- If run as root, it will reach each and every instance of xscreensaver + +- If run as a regular user, it will lock every xscreensaver of which this + user can hold of the associated `XAUTHORITY` file, or if the host was + added to the X server's host access list. + +(C) 2024 Wolfgang 'datenwolf' Draxinger -- SPDX BSD-3-Clause diff --git a/lockall-xscreensaver b/lockall-xscreensaver new file mode 100755 index 0000000..b366ea8 --- /dev/null +++ b/lockall-xscreensaver @@ -0,0 +1,111 @@ +#!/usr/bin/env -iS python3 +# vim: syntax=python +# +# Copyright 2024 Wolfgang 'datenwolf' Draxinger +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, this +# list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# 3. Neither the name of the copyright holder nor the names of its contributors +# may be used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +"""lockall-xscreensaver +Issue `xscreensaver-command -lock` to all instances of xscreensaver +running on the host it's executed on, to which the user running this +script has permissions to access: + +- If run as root, it will reach each and every instance of xscreensaver + +- If run as a regular user, it will lock every xscreensaver of which this + user can hold of the associated `XAUTHORITY` file, or if the host was + added to the X server's host access list. + +(C) 2024 Wolfgang 'datenwolf' Draxinger -- SPDX BSD-3-Clause +""" + +def procargs(pid): + cmdline_fil = open(f'/proc/{pid}/cmdline', 'r') + cmdline = cmdline_fil.read() + cmdline_fil.close() + return cmdline.split('\0') + +def procenv_display_xauth(pid): + environ_fil = open(f'/proc/{pid}/environ', 'r') + environ = environ_fil.read() + environ_fil.close() + environ = {k:v for k,v in [tuple(v.split('=',1)) for v in environ.split('\0') if len(v)]} + display = None + args = procargs(pid) + if '--display' in args: + display = args[args.index('--display')+1] + if not display: + display = environ['DISPLAY'] if 'DISPLAY' in environ else None + xauth = environ['XAUTHORITY'] if 'XAUTHORITY' in environ else None + return display, xauth + +def xorgargs_display_auth(args): + display, auth = None, None + for a in args: + if a.startswith(':'): + display = a + break + if '-auth' in args: + auth = args[args.index('-auth')+1] + return display, auth + +def main(argv): + import os, pwd, subprocess + xorg_auth = {} + xscreensaver_displays = [] + + for pid in os.listdir('/proc'): + if pid.isdigit(): + try: + exe = os.readlink(f'/proc/{pid}/exe') + except: + continue + if exe.endswith('Xorg'): + display,auth = xorgargs_display_auth( procargs(pid) ) + xorg_auth[display] = auth + continue + if exe.endswith('xscreensaver'): + xscreensaver_displays.append(procenv_display_xauth(pid)) + continue + + for display,xauth in xscreensaver_displays: + if not display: + continue + + if not xauth and display in xorg_auth: + xauth = xorg_auth[display] + + env = {'DISPLAY': display} + if xauth: + env['XAUTHORITY'] = xauth + elif 0 != os.geteuid(): + env['HOME'] = pwd.getpwuid(os.geteuid()).pw_dir + + subprocess.run(['xscreensaver-command', '--display', display, '--lock'], env=env) + subprocess.run(['xset', '-display', display, 'dpms', 'force', 'off'], env=env) + +if __name__ == '__main__': + import sys + main(sys.argv) |