如何从 awesome 锁定会话

如何从 awesome 锁定会话

我希望 Ubuntu 13.10 上的 Awesome 中有一个简单的锁定功能,既可按需锁定,也可在不活动时锁定。

答案1

获取菜谱原料:

sudo apt-get install xautolock slock
  • 自动锁- 在一段时间不活动后执行储物柜。
  • - 锁定屏幕,仅显示黑色 UI,输入密码并按 Enter。

首先尝试锁定会话的命令,看看是否喜欢:

slock

可以通过修改其配置将其挂接到 Awesome 菜单中:

# make awesome config dir:
mkdir -p ~/.config/awesome

# copy default config file to your home folder:
cp /etc/xdg/awesome/rc.lua ~/.config/awesome

# edit the custom config:
nano ~/.config/awesome/rc.lua

找到构建 mymainmenu 的位置并进行调整。我的部分现在如下所示(请注意“Lock”行):

lockscreen = function() awful.util.spawn("slock") end

mymainmenu = awful.menu({ items = {
            { "Lock", lockscreen },
            { "Awesome", myawesomemenu, beautiful.awesome_icon },
            { "Debian", debian.menu.Debian_menu.Debian },
            { "Guest", terminal .. " -e /usr/bin/dm-tool switch-to-guest" },
            { "Greet", terminal .. " -e /usr/bin/dm-tool switch-to-greeter" },
            { "Logout", awesome.quit },
         } 
      })

并为其创建 Meta+Escape 快捷方式。最初 Escape 绑定到标记历史记录。但我不使用该功能。

-- it was:
--    awful.key({ modkey,           }, "Escape", awful.tag.history.restore),
    awful.key({ modkey,           }, "Escape", lockscreen               ),

然后是自动锁定。我创建了一个可执行文件,以确保 xautolock 每个会话仅执行一次:

# make a bin folder if not present:
mkdir -p ~/bin/

# make the file, set permissions and edit:
touch ~/bin/session-daemon
chmod ug+x ~/bin/session-daemon
nano ~/bin/session-daemon

我使用由 DM 设置的环境变量“XDG_SEAT”来区分会话并存储命令的 PID 和日志。它仅在尚未运行时执行:

#!/bin/bash

if [ "$#" == "0" ] ;
then
    echo "Session daemon missing command" >&2
    echo "USAGE: $0 command [args...]"
    echo "Executes given command with args only once per XDG seat (session)."
    echo "Keeps PID and log of the executed command."
    exit 1
fi

COMMAND=$1
shift

NAME="${COMMAND##*/}"
PIDFILE=~/.cache/session-daemon/$NAME-$XDG_SEAT.pid
LOGFILE=~/.cache/session-daemon/$NAME-$XDG_SEAT.log
PID=""
PIDDIR="${PIDFILE%/*}"
LOGDIR="${LOGFILE%/*}"

mkdir -p $PIDDIR
if [ $? -ne 0 ];
then
    echo "Session daemon PIDDIR not there: $PIDDIR" >&2
    exit 2
fi

mkdir -p $LOGDIR
if [ $? -ne 0 ];
then
    echo "Session daemon LOGDIR not there: $LOGDIR" >&2
    exit 2
fi

if [ -e "$PIDFILE" ] ; 
then 
    echo "Session daemon '$NAME' PIDFILE found: $PIDFILE"
    PID=`cat "$PIDFILE"` 
    echo "Session daemon '$NAME' PID found: $PID"
else
    echo "Session daemon '$NAME' PIDFILE NOT found: $PIDFILE"
fi

if [ "$PID" ] && kill -0 "$PID" 2>/dev/null ; 
then
    echo "Session daemon '$NAME' was already running with PID $PID" >&2
    exit 3
fi

echo "Session daemon running $COMMAND $* > $LOGFILE 2>&1"
$COMMAND $* > "$LOGFILE" 2>&1 &
PID=$!
ERR=$?
sleep 1

if [ "$PID" ] && [  $ERR == 0 ] && kill -0 "$PID" 2>/dev/null;
then
    echo -n $PID > "$PIDFILE"
    echo "Session daemon '$NAME' started with PID $PID"
else
    echo "Session daemon '$NAME' did not start or finished early. PID: $PID, ERR: $ERR" >&2
    cat "$LOGFILE" >&2
    exit 4
fi

该会话守护程序脚本将由 xautolock-session 使用:

# make the file, set permissions and edit:
touch ~/bin/xautolock-session
chmod ug+x ~/bin/xautolock-session
nano ~/bin/xautolock-session

xautolock-session 内容:

#!/bin/bash

session-daemon xautolock -locker slock -time 5 -detectsleep -secure -corners "-00+"

这将由 Awesome 在重启时执行。再次编辑 Awesome 配置:

nano ~/.config/awesome/rc.lua

并在底部添加这一行:

awful.util.spawn_with_shell("~/bin/xautolock-session")

现在,当您退出并再次登录时,您的会话将在 5 分钟后自动锁定。

注意:我们dm-tool lock也可以使用,但是有一个奇怪的错误实际上破坏了整个想法:可以通过切换到控制台来绕过锁定

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