#
# sourced with .
#
# Script to check if user is already logged in and offers to kill all of his
# procs (asside from sshd and SENTINEL related ones) before continuing
#

if boolean_is_true "$LDM_LIMIT_ONE_SESSION"; then

    # If user is root, just exit from here or we'll kill all the sessions on the server
    if [ "$USER" = "root" ]; then
        return
    fi

    # Since we use a socket, by taking out the newest sshd proc from the kill list,
    # we should preserve our socket.
    sshdProc=$(ssh -X -S ${LDM_SOCKET} ${LDM_SERVER} '/usr/bin/pgrep -n -u $USER sshd')

    # Let's check if there is an old session or simply stale prcoesses
    allsshdProcs=$(ssh -X -S ${LDM_SOCKET} ${LDM_SERVER} '/usr/bin/pgrep -u $USER sshd')
    oldSessions=0
    for p in $allsshdProcs; do
        if [ "$p" != "$sshdProc" ]; then
            oldSessions=$(($oldSessions+1))
        fi
    done

    # Take out this sshd and kids
    procs=
    for i in $allsshdProcs; do
        match=
        for j in $sshdProc; do
            [ "$i" = "$j" ] && match=1
        done
        [ -z "$match" ] && procs="$procs $i"
    done

    if [ $oldSessions -gt 0 ] && boolean_is_true "$LDM_LIMIT_ONE_SESSION_PROMPT" ; then
        ldm-dialog --question "`eval_gettext "The system thinks you are logged in elsewhere.  Would you like to close the other session and continue to log in?"`"
        ret=$?
    else
        ret=0
    fi

    if [ "$ret" = 0 ]; then
        ssh -X -S ${LDM_SOCKET} ${LDM_SERVER} "/bin/kill $procs"
        sleep 1
        ssh -X -S ${LDM_SOCKET} ${LDM_SERVER} "/bin/kill -9 $procs"
    else
        /bin/kill -9 ${PPID}
    fi
fi