// changePassword - change the password of config file "filename"
func changePassword(args *argContainer) {
masterkey, confFile := loadConfig(args)
tlog.Info.Println("Please enter your new password.")
newPw := readpassword.Twice(args.extpass)
confFile.EncryptKey(masterkey, newPw, confFile.ScryptObject.LogN())
if args.masterkey != "" {
bak := args.config + ".bak"
err := os.Link(args.config, bak)
if err != nil {
tlog.Fatal.Printf("Could not create backup file: %v", err)
os.Exit(ErrExitInit)
}
tlog.Info.Printf(tlog.ColorGrey+
"A copy of the old config file has been created at %q.\n"+
"Delete it after you have verified that you can access your files with the new password."+
tlog.ColorReset, bak)
}
err := confFile.WriteFile()
if err != nil {
tlog.Fatal.Println(err)
os.Exit(ErrExitInit)
}
tlog.Info.Printf(tlog.ColorGreen + "Password changed." + tlog.ColorReset)
os.Exit(0)
}
// initDir prepares a directory for use as a gocryptfs storage directory.
// In forward mode, this means creating the gocryptfs.conf and gocryptfs.diriv
// files in an empty directory.
// In reverse mode, we create .gocryptfs.reverse.conf and the directory does
// not to be empty.
func initDir(args *argContainer) {
var err error
if args.reverse {
_, err = os.Stat(args.config)
if err == nil {
tlog.Fatal.Printf("Config file %q already exists", args.config)
os.Exit(ErrExitInit)
}
} else {
err = checkDirEmpty(args.cipherdir)
if err != nil {
tlog.Fatal.Printf("Invalid cipherdir: %v", err)
os.Exit(ErrExitInit)
}
}
// Choose password for config file
if args.extpass == "" {
tlog.Info.Printf("Choose a password for protecting your files.")
}
password := readpassword.Twice(args.extpass)
creator := tlog.ProgramName + " " + GitVersion
err = configfile.CreateConfFile(args.config, password, args.plaintextnames, args.scryptn, creator, args.aessiv, args.raw64)
if err != nil {
tlog.Fatal.Println(err)
os.Exit(ErrExitInit)
}
// Forward mode with filename encryption enabled needs a gocryptfs.diriv
// in the root dir
if !args.plaintextnames && !args.reverse {
err = nametransform.WriteDirIV(args.cipherdir)
if err != nil {
tlog.Fatal.Println(err)
os.Exit(ErrExitInit)
}
}
mountArgs := ""
fsName := "gocryptfs"
if args.reverse {
mountArgs = " -reverse"
fsName = "gocryptfs-reverse"
}
tlog.Info.Printf(tlog.ColorGreen+"The %s filesystem has been created successfully."+tlog.ColorReset,
fsName)
wd, _ := os.Getwd()
friendlyPath, _ := filepath.Rel(wd, args.cipherdir)
if strings.HasPrefix(friendlyPath, "../") {
// A relative path that starts with "../" is pretty unfriendly, just
// keep the absolute path.
friendlyPath = args.cipherdir
}
if strings.Contains(friendlyPath, " ") {
friendlyPath = "\"" + friendlyPath + "\""
}
tlog.Info.Printf(tlog.ColorGrey+"You can now mount it using: %s%s %s MOUNTPOINT"+tlog.ColorReset,
tlog.ProgramName, mountArgs, friendlyPath)
os.Exit(0)
}