func (ce *CtrlEngine) openMsgDB(
homedir string,
) error {
// read passphrase, if necessary
if ce.passphrase == nil {
fmt.Fprintf(ce.fileTable.StatusFP, "read passphrase from fd %d (not echoed)\n",
ce.fileTable.PassphraseFD)
log.Infof("read passphrase from fd %d (not echoed)",
ce.fileTable.PassphraseFD)
var err error
ce.passphrase, err = util.Readline(ce.fileTable.PassphraseFP)
if err != nil {
return err
}
log.Info("done")
}
// open msgDB
msgdbname := filepath.Join(homedir, "msgs")
log.Infof("open msgDB %s", msgdbname)
var err error
ce.msgDB, err = msgdb.Open(msgdbname, ce.passphrase)
if err != nil {
return err
}
return nil
}
// create a new MsgDB and KeyDB.
func (ce *CtrlEngine) dbCreate(
w, statusfp io.Writer,
homedir string,
c *cli.Context,
) error {
msgdbname := filepath.Join(c.GlobalString("homedir"), "msgs")
// read passphrase
fmt.Fprintf(statusfp, "read passphrase from fd %d (not echoed)\n",
ce.fileTable.PassphraseFD)
log.Infof("read passphrase from fd %d (not echoed)",
ce.fileTable.PassphraseFD)
var (
scanner *bufio.Scanner
passphrase []byte
passphrase2 []byte
err error
)
defer bzero.Bytes(passphrase)
defer bzero.Bytes(passphrase2)
isTerminal := terminal.IsTerminal(int(ce.fileTable.PassphraseFD))
if isTerminal {
passphrase, err = terminal.ReadPassword(int(ce.fileTable.PassphraseFD))
if err != nil {
return log.Error(err)
}
} else {
scanner = bufio.NewScanner(ce.fileTable.PassphraseFP)
if scanner.Scan() {
passphrase = scanner.Bytes()
} else if err := scanner.Err(); err != nil {
return log.Error(err)
}
}
log.Info("done")
// read passphrase again
fmt.Fprintf(statusfp, "read passphrase from fd %d again (not echoed)\n",
ce.fileTable.PassphraseFD)
log.Infof("read passphrase from fd %d again (not echoed)",
ce.fileTable.PassphraseFD)
if isTerminal {
passphrase2, err = terminal.ReadPassword(int(ce.fileTable.PassphraseFD))
if err != nil {
return log.Error(err)
}
} else {
if scanner.Scan() {
passphrase2 = scanner.Bytes()
} else if err := scanner.Err(); err != nil {
return log.Error(err)
}
}
log.Info("done")
// compare passphrases
if !bytes.Equal(passphrase, passphrase2) {
return log.Error(ErrPassphrasesDiffer)
}
// create msgDB
log.Infof("create msgDB '%s'", msgdbname)
if err := msgdb.Create(msgdbname, passphrase, c.Int("iterations")); err != nil {
return err
}
// open msgDB
msgDB, err := msgdb.Open(msgdbname, passphrase)
if err != nil {
return err
}
defer msgDB.Close()
// configure to make sure mutecrypt has config file
err = ce.upkeepFetchconf(msgDB, homedir, false, nil, statusfp)
if err != nil {
return err
}
// create keyDB
log.Info("create keyDB")
if err := createKeyDB(c, w, ce.fileTable.OutputFD, passphrase); err != nil {
return err
}
// status
fmt.Fprintf(statusfp, "database files created\n")
log.Info("database files created")
// determine private walletKey
walletKey := c.String("walletkey")
if walletKey == "" {
// generate wallet key
_, privateKey, err := ed25519.GenerateKey(cipher.RandReader)
if err != nil {
return err
}
walletKey = base64.Encode(privateKey[:])
}
// store wallet key
if err := msgDB.AddValue(msgdb.WalletKey, walletKey); err != nil {
return err
}
// print wallet key
if err := printWalletKey(w, walletKey); err != nil {
return err
}
return nil
}