package commands import ( "bufio" "context" "errors" "fmt" "os" "os/signal" "strings" "syscall" "github.com/photoprism/photoprism/internal/config" "github.com/photoprism/photoprism/internal/entity" "github.com/photoprism/photoprism/pkg/txt" "github.com/urfave/cli" ) // PasswdCommand updates a password. var PasswdCommand = cli.Command{ Name: "passwd", Usage: "Changes the admin password", Action: passwdAction, } // passwdAction updates a password. func passwdAction(ctx *cli.Context) error { conf := config.NewConfig(ctx) _, cancel := context.WithCancel(context.Background()) defer cancel() if err := conf.Init(); err != nil { return err } conf.InitDb() user := entity.Admin log.Infof("please enter a new password for %s (at least 6 characters)\n", txt.Quote(user.UserName)) newPassword := getPassword("New Password: ") if len(newPassword) < 6 { return errors.New("new password is too short, please try again") } retypePassword := getPassword("Retype Password: ") if newPassword != retypePassword { return errors.New("passwords did not match, please try again") } if err := user.SetPassword(newPassword); err != nil { return err } log.Infof("changed password for %s\n", txt.Quote(user.UserName)) conf.Shutdown() return nil } // License: MIT Open Source // Copyright (c) Joe Linoff 2016 // Go code to prompt for password using only standard packages by utilizing syscall.ForkExec() and syscall.Wait4(). // Correctly resets terminal echo after ^C interrupts. // // techEcho() - turns terminal echo on or off. func termEcho(on bool) { // Common settings and variables for both stty calls. attrs := syscall.ProcAttr{ Dir: "", Env: []string{}, Files: []uintptr{os.Stdin.Fd(), os.Stdout.Fd(), os.Stderr.Fd()}, Sys: nil} var ws syscall.WaitStatus cmd := "echo" if on == false { cmd = "-echo" } // Enable/disable echoing. pid, err := syscall.ForkExec( "/bin/stty", []string{"stty", cmd}, &attrs) if err != nil { panic(err) } // Wait for the stty process to complete. _, err = syscall.Wait4(pid, &ws, 0, nil) if err != nil { panic(err) } } // getPassword - Prompt for password. func getPassword(prompt string) string { fmt.Print(prompt) // Catch a ^C interrupt. // Make sure that we reset term echo before exiting. signalChannel := make(chan os.Signal, 1) signal.Notify(signalChannel, os.Interrupt) go func() { for _ = range signalChannel { fmt.Println("") termEcho(true) os.Exit(1) } }() // Echo is disabled, now grab the data. termEcho(false) // disable terminal echo reader := bufio.NewReader(os.Stdin) text, err := reader.ReadString('\n') termEcho(true) // always re-enable terminal echo fmt.Println("") if err != nil { // The terminal has been reset, go ahead and exit. fmt.Println("ERROR:", err.Error()) os.Exit(1) } return strings.TrimSpace(text) }