src: add user session detection implementationwinlinux

Detect user login and logout for Linux and Windows.

Report an active interactive session through the /refresh response
so a new ogserver instance can update the session status.

Poll the session change in 5 second intervals in a thread. Use the
same event socket previously used by the old session detection
mechanism to notify a session change.

Use the method check_interactive_session_change in each
ogOperations.py to report the session status.
Return values:
	None: no session changes are found
	True: login
	False: logout

Windows
check_interactive_session_change uses the WMI API to obtain session
information. Obtain the list of sessions associated to interactive
sessions and then filter the sessions with a valid user.

Linux
Check if any user has the DISPLAY or WAYLAND_DISPLAY environment
variable defined as that means there is an interactive session
in execution.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/virtual/ogOperations.py b/src/virtual/ogOperations.py
index c51f59d..86ae0ed 100644
--- a/src/virtual/ogOperations.py
+++ b/src/virtual/ogOperations.py
@@ -629,3 +629,6 @@ class OgVirtualOperations:
             for k, v in device_names.items():
                 f.write(f'{k}={v}\n')
             f.truncate()
+
+    def check_interactive_session_change(self):
+        return None