119 lines
2.2 KiB
Go
119 lines
2.2 KiB
Go
package main
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import (
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"errors"
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"kdelsd/afterlock"
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"kdelsd/config"
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"kdelsd/lockfile"
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"kdelsd/xdg/display"
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"kdelsd/xdg/keypressdetector"
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"kdelsd/xdg/lockscreen"
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"kdelsd/xdg/xinput_devnodes"
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"log"
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"os"
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"os/signal"
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"runtime/debug"
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"syscall"
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)
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type afterLockConfig struct {
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INITIAL_DELAY int `optional`
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LOOP_DELAY int `optional`
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LOCK_PATH string `optional`
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LOG_PATH string
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PRINT_STACKTRACES bool `optional`
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}
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var configuration = afterLockConfig{
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INITIAL_DELAY: 3,
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LOOP_DELAY: 7,
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LOCK_PATH: "/tmp/after-lock.lock",
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PRINT_STACKTRACES: true,
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}
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var mainDone chan bool
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var cleanupDone chan bool
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var sig chan os.Signal
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func init() {
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mainDone = make(chan bool)
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cleanupDone = make(chan bool)
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sig = make(chan os.Signal)
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}
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func main() {
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defer handleErrors()
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err := config.NewBuilder().Build("AFL_", &configuration)
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if err != nil {
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panic(err)
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}
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f := initLogging(configuration.LOG_PATH)
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if f == nil {
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panic("Failed to open logfile")
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}
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initCleanup(grabExclusiveProcessLock(configuration.LOCK_PATH), f)
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al := buildAfterlock()
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al.Start()
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mainDone<-true
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<-cleanupDone
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}
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func handleErrors() {
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if err := recover(); err != nil {
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log.Printf("Crashed with unexpected error: %v!\n", err)
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if configuration.PRINT_STACKTRACES {
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log.Printf("Stack trace:\n\n")
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debug.PrintStack()
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}
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os.Exit(1)
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}
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}
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func grabExclusiveProcessLock(lockfile_path string) *lockfile.Lockfile {
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lf := lockfile.New(lockfile_path)
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err := lf.Lock()
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if err != nil {
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panic(err)
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}
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return lf
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}
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func initCleanup(lock *lockfile.Lockfile, logfile *os.File) {
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signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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select{
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case <-mainDone:
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case <-sig:
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}
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lock.Unlock()
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teardownLogging(logfile)
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cleanupDone<-true
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}()
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}
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func buildAfterlock() *afterlock.AfterLock {
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al := afterlock.New(getKeyboardDevNode())
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al.InitialDelay = uint(configuration.INITIAL_DELAY)
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al.LoopDelay = uint(configuration.LOOP_DELAY)
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al.Display = display.Xset{}
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al.LockScreen = lockscreen.XDG{}
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al.KeypressDetector = keypressdetector.Evdev{}
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return al
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}
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func getKeyboardDevNode() string {
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devNode := xinput_devnodes.FindKeyboardDevNode()
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if devNode == "" {
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panic(errors.New("unable to find keyboard device node"))
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}
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return devNode
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}
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