consolidate: refactor prompt related code

config.go

@@ -31,6 +31,7 @@ const (
 	defaultLogFilename      = "lbcwallet.log"
 	defaultRPCMaxClients    = 10
 	defaultRPCMaxWebsockets = 25
+	defaultPassphrase       = "password"
 )
 
 var (
@@ -56,8 +57,8 @@ type config struct {
 	Profile     string                  `long:"profile" description:"Enable HTTP profiling on given port -- NOTE port must be between 1024 and 65536"`
 	DBTimeout   time.Duration           `long:"dbtimeout" description:"The timeout value to use when opening the wallet database."`
 
-	// Wallet options
-	WalletPass string `long:"walletpass" default-mask:"-" description:"The public wallet password -- Only required if the wallet was created with one"`
+	// Passphrase options
+	Passphrase string `short:"p" long:"passphrase" default-mask:"-" description:"The wallet passphrase (default: \"insecurepassphrase\")"`
 
 	// RPC client options
 	RPCConnect       string                  `short:"c" long:"rpcconnect" description:"Hostname/IP and port of lbcd RPC server to connect to (default localhost:9245, testnet: localhost:19245, regtest: localhost:29245)"`
@@ -242,6 +243,7 @@ func loadConfig() (*config, []string, error) {
 		LegacyRPCMaxWebsockets: defaultRPCMaxWebsockets,
 		DataDir:                cfgutil.NewExplicitString(defaultAppDataDir),
 		DBTimeout:              wallet.DefaultDBTimeout,
+		Passphrase:             defaultPassphrase,
 	}
 
 	// Pre-parse the command line options to see if an alternative config

internal/prompt/prompt.go

@@ -21,14 +21,7 @@ import (
 	"golang.org/x/crypto/ssh/terminal"
 )
 
-// ProvideSeed is used to prompt for the wallet seed which maybe required during
-// upgrades.
-func ProvideSeed() func() ([]byte, error) {
-	return func() ([]byte, error) {
-		return provideSeed(bufio.NewReader(os.Stdin))
-	}
-}
-func provideSeed(reader *bufio.Reader) ([]byte, error) {
+func promptSeed(reader *bufio.Reader) ([]byte, error) {
 	for {
 		fmt.Print("Enter existing wallet seed: ")
 		seedStr, err := reader.ReadString('\n')
@@ -52,26 +45,6 @@ func provideSeed(reader *bufio.Reader) ([]byte, error) {
 	}
 }
 
-// ProvidePassphrase is used to prompt for the passphrase which maybe required
-// during upgrades.
-func ProvidePassphrase() ([]byte, error) {
-	prompt := "Enter the passphrase of your wallet: "
-	for {
-		fmt.Print(prompt)
-		pass, err := terminal.ReadPassword(int(os.Stdin.Fd()))
-		if err != nil {
-			return nil, err
-		}
-		fmt.Print("\n")
-		pass = bytes.TrimSpace(pass)
-		if len(pass) == 0 {
-			continue
-		}
-
-		return pass, nil
-	}
-}
-
 // promptList prompts the user with the given prefix, list of valid responses,
 // and default list entry to use.  The function will repeat the prompt to the
 // user until they enter a valid response.
@@ -150,7 +123,12 @@ func promptUnixTimestamp(reader *bufio.Reader, prefix string,
 // promptPassphrase prompts the user for a passphrase with the given prefix.
 // The function will ask the user to confirm the passphrase and will repeat
 // the prompts until they enter a matching response.
-func promptPassphrase(_ *bufio.Reader, prefix string, confirm bool) ([]byte, error) {
+func promptPassphrase(prefix string, confirm bool) ([]byte, error) {
+	pass := os.Getenv("LBCWALLET_PASSPHRASE")
+	if len(pass) > 0 {
+		return []byte(pass), nil
+	}
+
 	// Prompt the user until they enter a passphrase.
 	prompt := fmt.Sprintf("%s: ", prefix)
 	for {
@@ -193,9 +171,9 @@ func birthday(reader *bufio.Reader) (time.Time, error) {
 
 // Passphrase prompts the user for a passphrase.
 // All prompts are repeated until the user enters a valid response.
-func Passphrase(reader *bufio.Reader) ([]byte, error) {
-	return promptPassphrase(reader, "Enter the passphrase "+
-		"for your new wallet", true)
+func Passphrase(confirm bool) ([]byte, error) {
+	return promptPassphrase("Enter the passphrase "+
+		"for your new wallet", confirm)
 }
 
 // Seed prompts the user whether they want to use an existing wallet generation
@@ -239,7 +217,7 @@ func Seed(reader *bufio.Reader) ([]byte, time.Time, error) {
 		return seed, bday, nil
 	}
 
-	seed, err := provideSeed(reader)
+	seed, err := promptSeed(reader)
 	if err != nil {
 		return nil, bday, err
 	}

lbcwallet.go

@@ -87,7 +87,7 @@ func walletMain() error {
 		startWalletRPCServices(w, legacyRPCServer)
 	})
 
-	_, err = loader.OpenExistingWallet(true)
+	_, err = loader.OpenExistingWallet()
 	if err != nil {
 		log.Error(err)
 		return err

wallet/loader.go

@@ -14,8 +14,6 @@ import (
 
 	"github.com/lbryio/lbcd/chaincfg"
 	"github.com/lbryio/lbcutil/hdkeychain"
-	"github.com/lbryio/lbcwallet/internal/prompt"
-	"github.com/lbryio/lbcwallet/waddrmgr"
 	"github.com/lbryio/lbcwallet/walletdb"
 )
 
@@ -224,7 +222,7 @@ func (l *Loader) createNewWallet(passphrase []byte,
 	}
 
 	// Open the newly-created wallet.
-	w, err := Open(l.db, nil, l.chainParams, l.recoveryWindow)
+	w, err := Open(l.db, l.chainParams, l.recoveryWindow)
 	if err != nil {
 		return nil, err
 	}
@@ -236,14 +234,10 @@ func (l *Loader) createNewWallet(passphrase []byte,
 
 var errNoConsole = errors.New("db upgrade requires console access for additional input")
 
-func noConsole() ([]byte, error) {
-	return nil, errNoConsole
-}
-
 // OpenExistingWallet opens the wallet from the loader's wallet database path.
 // If the loader is being called by a context where standard input prompts may
 // be used during wallet upgrades, setting canConsolePrompt will enables these prompts.
-func (l *Loader) OpenExistingWallet(canConsolePrompt bool) (*Wallet, error) {
+func (l *Loader) OpenExistingWallet() (*Wallet, error) {
 	defer l.mu.Unlock()
 	l.mu.Lock()
 
@@ -269,19 +263,7 @@ func (l *Loader) OpenExistingWallet(canConsolePrompt bool) (*Wallet, error) {
 		}
 	}
 
-	var cbs *waddrmgr.OpenCallbacks
-	if canConsolePrompt {
-		cbs = &waddrmgr.OpenCallbacks{
-			ObtainSeed:       prompt.ProvideSeed(),
-			ObtainPassphrase: prompt.ProvidePassphrase,
-		}
-	} else {
-		cbs = &waddrmgr.OpenCallbacks{
-			ObtainSeed:       noConsole,
-			ObtainPassphrase: noConsole,
-		}
-	}
-	w, err := Open(l.db, cbs, l.chainParams, l.recoveryWindow)
+	w, err := Open(l.db, l.chainParams, l.recoveryWindow)
 	if err != nil {
 		// If opening the wallet fails (e.g. because of wrong
 		// passphrase), we must close the backing database to

wallet/wallet.go

@@ -689,7 +689,7 @@ func (w *Wallet) recovery(chainClient chain.Interface,
 	// that a wallet rescan will be performed from the wallet's tip, which
 	// will be of bestHeight after completing the recovery process.
 
-	pass, err := prompt.ProvidePassphrase()
+	pass, err := prompt.Passphrase(false)
 	if err != nil {
 		return err
 	}
@@ -3664,8 +3664,8 @@ func create(db walletdb.DB, privPass []byte, rootKey *hdkeychain.ExtendedKey,
 }
 
 // Open loads an already-created wallet from the passed database and namespaces.
-func Open(db walletdb.DB, cbs *waddrmgr.OpenCallbacks,
-	params *chaincfg.Params, recoveryWindow uint32) (*Wallet, error) {
+func Open(db walletdb.DB, params *chaincfg.Params, recoveryWindow uint32) (
+	*Wallet, error) {
 
 	var (
 		addrMgr *waddrmgr.Manager

walletsetup.go

@@ -47,7 +47,7 @@ func createWallet(cfg *config) error {
 
 	// Start by prompting for the passphrase.
 	reader := bufio.NewReader(os.Stdin)
-	privPass, err := prompt.Passphrase(reader)
+	privPass, err := prompt.Passphrase(true)
 	if err != nil {
 		return err
 	}