feat: In the gnokey CLI, add command to update the password

docs/getting-started/local-setup/working-with-key-pairs.md

@@ -40,6 +40,7 @@ SUBCOMMANDS
   export     Exports private key armor
   import     Imports encrypted private key armor
   list       Lists all keys in the keybase
+  update     Update the password of a key in the keybase
   sign       Signs the document
   verify     Verifies the document signature
   query      Makes an ABCI query
@@ -159,6 +160,18 @@ you can recover it using the key's mnemonic, or by importing it if it was export
 at a previous point in time.
 :::
 
+
+## Updating the password of a private key
+To update the password of a private key from the `gnokey` keystore, we need to know the name or
+address of the key to remove.
+After we have this information, we can run the following command:
+
+```bash
+gnokey update MyKey
+```
+
+After entering the current key decryption password and the new password, the password of the key will be updated in the keystore.
+
 ## Exporting a private key
 Private keys stored in the `gnokey` keystore can be exported to a desired place
 on the user's filesystem.

gno.land/pkg/keyscli/root.go

@@ -34,6 +34,7 @@ func NewRootCmd(io commands.IO, base client.BaseOptions) *commands.Command {
 		client.NewExportCmd(cfg, io),
 		client.NewImportCmd(cfg, io),
 		client.NewListCmd(cfg, io),
+		client.NewUpdateCmd(cfg, io),
 		client.NewSignCmd(cfg, io),
 		client.NewVerifyCmd(cfg, io),
 		client.NewQueryCmd(cfg, io),

tm2/pkg/crypto/keys/client/root.go

@@ -43,6 +43,7 @@ func NewRootCmdWithBaseConfig(io commands.IO, base BaseOptions) *commands.Comman
 		NewExportCmd(cfg, io),
 		NewImportCmd(cfg, io),
 		NewListCmd(cfg, io),
+		NewUpdateCmd(cfg, io),
 		NewSignCmd(cfg, io),
 		NewVerifyCmd(cfg, io),
 		NewQueryCmd(cfg, io),

tm2/pkg/crypto/keys/client/update.go

@@ -0,0 +1,75 @@
+package client
+
+import (
+	"context"
+	"flag"
+	"fmt"
+
+	"github.com/gnolang/gno/tm2/pkg/commands"
+	"github.com/gnolang/gno/tm2/pkg/crypto/keys"
+)
+
+type UpdateCfg struct {
+	RootCfg *BaseCfg
+
+	Force bool
+}
+
+func NewUpdateCmd(rootCfg *BaseCfg, io commands.IO) *commands.Command {
+	cfg := &UpdateCfg{
+		RootCfg: rootCfg,
+	}
+
+	return commands.NewCommand(
+		commands.Metadata{
+			Name:       "update",
+			ShortUsage: "update [flags] <key-name>",
+			ShortHelp:  "update the password of a key in the keybase",
+		},
+		cfg,
+		func(_ context.Context, args []string) error {
+			return execUpdate(cfg, args, io)
+		},
+	)
+}
+
+func (c *UpdateCfg) RegisterFlags(fs *flag.FlagSet) {
+}
+
+func execUpdate(cfg *UpdateCfg, args []string, io commands.IO) error {
+	if len(args) != 1 {
+		return flag.ErrHelp
+	}
+
+	nameOrBech32 := args[0]
+
+	kb, err := keys.NewKeyBaseFromDir(cfg.RootCfg.Home)
+	if err != nil {
+		return err
+	}
+
+	oldpass, err := io.GetPassword("Enter the current password:", cfg.RootCfg.InsecurePasswordStdin)
+	if err != nil {
+		return err
+	}
+
+	newpass, err := io.GetCheckPassword(
+		[2]string{
+			"Enter the new password to encrypt your key to disk:",
+			"Repeat the password:",
+		},
+		cfg.RootCfg.InsecurePasswordStdin,
+	)
+	if err != nil {
+		return fmt.Errorf("unable to parse provided password, %w", err)
+	}
+
+	getNewpass := func() (string, error) { return newpass, nil }
+	err = kb.Update(nameOrBech32, oldpass, getNewpass)
+	if err != nil {
+		return err
+	}
+	io.ErrPrintln("Password updated")
+
+	return nil
+}

tm2/pkg/crypto/keys/client/update_test.go

@@ -0,0 +1,95 @@
+package client
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/gnolang/gno/tm2/pkg/commands"
+	"github.com/gnolang/gno/tm2/pkg/crypto/keys"
+	"github.com/gnolang/gno/tm2/pkg/testutils"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_execUpdate(t *testing.T) {
+	t.Parallel()
+
+	// make new test dir
+	kbHome, kbCleanUp := testutils.NewTestCaseDir(t)
+	defer kbCleanUp()
+
+	// initialize test options
+	cfg := &UpdateCfg{
+		RootCfg: &BaseCfg{
+			BaseOptions: BaseOptions{
+				Home:                  kbHome,
+				InsecurePasswordStdin: true,
+			},
+		},
+	}
+
+	io := commands.NewTestIO()
+
+	// Add test accounts to keybase.
+	kb, err := keys.NewKeyBaseFromDir(kbHome)
+	assert.NoError(t, err)
+
+	keyName := "updateApp_Key1"
+	p1, p2 := "1234", "foobar"
+	mnemonic := "equip will roof matter pink blind book anxiety banner elbow sun young"
+
+	_, err = kb.CreateAccount(keyName, mnemonic, "", p1, 0, 0)
+	assert.NoError(t, err)
+
+	{
+		// test: Key not found
+		args := []string{"blah"}
+		io.SetIn(strings.NewReader(p1 + "\n" + p2 + "\n" + p2 + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.Error(t, err)
+		require.Equal(t, "Key blah not found", err.Error())
+	}
+
+	{
+		// test: Wrong password
+		args := []string{keyName}
+		io.SetIn(strings.NewReader("blah" + "\n" + p2 + "\n" + p2 + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.Error(t, err)
+		require.Equal(t, "invalid account password", err.Error())
+	}
+
+	{
+		// test: New passwords don't match
+		args := []string{keyName}
+		io.SetIn(strings.NewReader(p1 + "\n" + p2 + "\n" + "blah" + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.Error(t, err)
+		require.Equal(t, "unable to parse provided password, passphrases don't match", err.Error())
+	}
+
+	{
+		// Update the password
+		args := []string{keyName}
+		io.SetIn(strings.NewReader(p1 + "\n" + p2 + "\n" + p2 + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.NoError(t, err)
+	}
+
+	{
+		// test: The old password shouldn't work
+		args := []string{keyName}
+		io.SetIn(strings.NewReader(p1 + "\n" + p1 + "\n" + p1 + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.Error(t, err)
+		require.Equal(t, "invalid account password", err.Error())
+	}
+
+	{
+		// Updating the new password to itself should work
+		args := []string{keyName}
+		io.SetIn(strings.NewReader(p2 + "\n" + p2 + "\n" + p2 + "\n"))
+		err = execUpdate(cfg, args, io)
+		require.NoError(t, err)
+	}
+}