cli: deduplicate smartcontract/wallet tx confirm/sign/save/send

It's the same code.

cli/smartcontract/smart_contract.go

@@ -8,19 +8,17 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
-	"time"
 
 	"github.com/nspcc-dev/neo-go/cli/cmdargs"
 	"github.com/nspcc-dev/neo-go/cli/flags"
 	"github.com/nspcc-dev/neo-go/cli/input"
 	"github.com/nspcc-dev/neo-go/cli/options"
-	"github.com/nspcc-dev/neo-go/cli/paramcontext"
+	"github.com/nspcc-dev/neo-go/cli/txctx"
 	cliwallet "github.com/nspcc-dev/neo-go/cli/wallet"
 	"github.com/nspcc-dev/neo-go/pkg/compiler"
 	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
-	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
@@ -62,22 +60,6 @@ var (
 		Name:  addressFlagName,
 		Usage: "address to use as transaction signee (and gas source)",
 	}
-	gasFlag = flags.Fixed8Flag{
-		Name:  "gas, g",
-		Usage: "network fee to add to the transaction (prioritizing it)",
-	}
-	sysGasFlag = flags.Fixed8Flag{
-		Name:  "sysgas, e",
-		Usage: "system fee to add to transaction (compensating for execution)",
-	}
-	outFlag = cli.StringFlag{
-		Name:  "out",
-		Usage: "file to put JSON transaction to",
-	}
-	forceFlag = cli.BoolFlag{
-		Name:  "force",
-		Usage: "force-push the transaction in case of bad VM state after test script invocation",
-	}
 )
 
 // ModVersion contains `pkg/interop` module version
@@ -120,10 +102,10 @@ func NewCommands() []cli.Command {
 		walletFlag,
 		walletConfigFlag,
 		addressFlag,
-		gasFlag,
-		sysGasFlag,
-		outFlag,
-		forceFlag,
+		txctx.GasFlag,
+		txctx.SysGasFlag,
+		txctx.OutFlag,
+		txctx.ForceFlag,
 	}
 	invokeFunctionFlags = append(invokeFunctionFlags, options.RPC...)
 	deployFlags := append(invokeFunctionFlags, []cli.Flag{
@@ -668,7 +650,6 @@ func invokeInternal(ctx *cli.Context, signAndPush bool) error {
 func invokeWithArgs(ctx *cli.Context, acc *wallet.Account, wall *wallet.Wallet, script util.Uint160, operation string, params []interface{}, cosigners []transaction.Signer) error {
 	var (
 		err             error
-		gas, sysgas     fixedn.Fixed8
 		signersAccounts []actor.SignerAccount
 		resp            *result.Invoke
 		signAndPush     = acc != nil
@@ -676,8 +657,6 @@ func invokeWithArgs(ctx *cli.Context, acc *wallet.Account, wall *wallet.Wallet,
 		act             *actor.Actor
 	)
 	if signAndPush {
-		gas = flags.Fixed8FromContext(ctx, "gas")
-		sysgas = flags.Fixed8FromContext(ctx, "sysgas")
 		signersAccounts, err = cmdargs.GetSignersAccounts(acc, wall, cosigners, transaction.None)
 		if err != nil {
 			return cli.NewExitError(fmt.Errorf("invalid signers: %w", err), 1)
@@ -731,44 +710,16 @@ func invokeWithArgs(ctx *cli.Context, acc *wallet.Account, wall *wallet.Wallet,
 		}
 
 		fmt.Fprintln(ctx.App.Writer, string(b))
-	} else {
+		return nil
+	}
 	if len(resp.Script) == 0 {
 		return cli.NewExitError(errors.New("no script returned from the RPC node"), 1)
 	}
-		ver := act.GetVersion()
-		tx, err := act.MakeUnsignedUncheckedRun(resp.Script, resp.GasConsumed+int64(sysgas), nil)
+	tx, err := act.MakeUnsignedUncheckedRun(resp.Script, resp.GasConsumed, nil)
 	if err != nil {
 		return cli.NewExitError(fmt.Errorf("failed to create tx: %w", err), 1)
 	}
-		tx.NetworkFee += int64(gas)
-		if out != "" {
-			// Make a long-lived transaction, it's to be signed manually.
-			tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
-			m := act.GetNetwork()
-			if err := paramcontext.InitAndSave(m, tx, acc, out); err != nil {
-				return cli.NewExitError(err, 1)
-			}
-			fmt.Fprintln(ctx.App.Writer, tx.Hash().StringLE())
-		} else {
-			if !ctx.Bool("force") {
-				promptTime := time.Now()
-				err := input.ConfirmTx(ctx.App.Writer, tx)
-				if err != nil {
-					return cli.NewExitError(err, 1)
-				}
-				waitTime := time.Since(promptTime)
-				// Compensate for confirmation waiting.
-				tx.ValidUntilBlock += uint32((waitTime.Milliseconds() / int64(ver.Protocol.MillisecondsPerBlock))) + 1
-			}
-			txHash, _, err := act.SignAndSend(tx)
-			if err != nil {
-				return cli.NewExitError(fmt.Errorf("failed to push invocation tx: %w", err), 1)
-			}
-			fmt.Fprintf(ctx.App.Writer, "Sent invocation transaction %s\n", txHash.StringLE())
-		}
-	}
-
-	return nil
+	return txctx.SignAndSend(ctx, act, acc, tx)
 }
 
 func testInvokeScript(ctx *cli.Context) error {

cli/txctx/tx.go

@@ -0,0 +1,79 @@
+/*
+Package txctx contains helper functions that deal with transactions in CLI context.
+*/
+package txctx
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/nspcc-dev/neo-go/cli/flags"
+	"github.com/nspcc-dev/neo-go/cli/input"
+	"github.com/nspcc-dev/neo-go/cli/paramcontext"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/urfave/cli"
+)
+
+var (
+	// GasFlag is a flag used for the additional network fee.
+	GasFlag = flags.Fixed8Flag{
+		Name:  "gas, g",
+		Usage: "network fee to add to the transaction (prioritizing it)",
+	}
+	// SysGasFlag is a flag used for the additional system fee.
+	SysGasFlag = flags.Fixed8Flag{
+		Name:  "sysgas, e",
+		Usage: "system fee to add to the transaction (compensating for execution)",
+	}
+	// OutFlag is a flag used for file output.
+	OutFlag = cli.StringFlag{
+		Name:  "out",
+		Usage: "file (JSON) to put signature context with a transaction to",
+	}
+	// ForceFlag is a flag used to force transaction send.
+	ForceFlag = cli.BoolFlag{
+		Name:  "force",
+		Usage: "Do not ask for a confirmation (and ignore errors)",
+	}
+)
+
+// SignAndSend adds network and system fees to the provided transaction and
+// either sends it to the network (with a confirmation or --force flag) or saves
+// it into a file (given in the --out flag).
+func SignAndSend(ctx *cli.Context, act *actor.Actor, acc *wallet.Account, tx *transaction.Transaction) error {
+	var (
+		err    error
+		gas    = flags.Fixed8FromContext(ctx, "gas")
+		sysgas = flags.Fixed8FromContext(ctx, "sysgas")
+		ver    = act.GetVersion()
+	)
+
+	tx.SystemFee += int64(sysgas)
+	tx.NetworkFee += int64(gas)
+
+	if outFile := ctx.String("out"); outFile != "" {
+		// Make a long-lived transaction, it's to be signed manually.
+		tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
+		err = paramcontext.InitAndSave(ver.Protocol.Network, tx, acc, outFile)
+	} else {
+		if !ctx.Bool("force") {
+			promptTime := time.Now()
+			err := input.ConfirmTx(ctx.App.Writer, tx)
+			if err != nil {
+				return cli.NewExitError(err, 1)
+			}
+			waitTime := time.Since(promptTime)
+			// Compensate for confirmation waiting.
+			tx.ValidUntilBlock += uint32((waitTime.Milliseconds() / int64(ver.Protocol.MillisecondsPerBlock))) + 1
+		}
+		_, _, err = act.SignAndSend(tx)
+	}
+	if err != nil {
+		return cli.NewExitError(err, 1)
+	}
+
+	fmt.Fprintln(ctx.App.Writer, tx.Hash().StringLE())
+	return nil
+}

cli/wallet/nep11.go

@@ -9,6 +9,7 @@ import (
 	"github.com/nspcc-dev/neo-go/cli/cmdargs"
 	"github.com/nspcc-dev/neo-go/cli/flags"
 	"github.com/nspcc-dev/neo-go/cli/options"
+	"github.com/nspcc-dev/neo-go/cli/txctx"
 	"github.com/nspcc-dev/neo-go/pkg/config"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
@@ -94,7 +95,7 @@ func newNEP11Commands() []cli.Command {
 				walletPathFlag,
 				walletConfigFlag,
 				tokenFlag,
-				forceFlag,
+				txctx.ForceFlag,
 			},
 		},
 		{

cli/wallet/nep17.go

@@ -6,13 +6,11 @@ import (
 	"fmt"
 	"math/big"
 	"strings"
-	"time"
 
 	"github.com/nspcc-dev/neo-go/cli/cmdargs"
 	"github.com/nspcc-dev/neo-go/cli/flags"
-	"github.com/nspcc-dev/neo-go/cli/input"
 	"github.com/nspcc-dev/neo-go/cli/options"
-	"github.com/nspcc-dev/neo-go/cli/paramcontext"
+	"github.com/nspcc-dev/neo-go/cli/txctx"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
@@ -37,14 +35,6 @@ var (
 		Name:  "token",
 		Usage: "Token to use (hash or name (for NEO/GAS or imported tokens))",
 	}
-	gasFlag = flags.Fixed8Flag{
-		Name:  "gas, g",
-		Usage: "network fee to add to the transaction (prioritizing it)",
-	}
-	sysGasFlag = flags.Fixed8Flag{
-		Name:  "sysgas, e",
-		Usage: "system fee to add to transaction (compensating for execution)",
-	}
 	baseBalanceFlags = []cli.Flag{
 		walletPathFlag,
 		walletConfigFlag,
@@ -65,13 +55,13 @@ var (
 	baseTransferFlags = []cli.Flag{
 		walletPathFlag,
 		walletConfigFlag,
-		outFlag,
+		txctx.OutFlag,
 		fromAddrFlag,
 		toAddrFlag,
 		tokenFlag,
-		gasFlag,
-		sysGasFlag,
-		forceFlag,
+		txctx.GasFlag,
+		txctx.SysGasFlag,
+		txctx.ForceFlag,
 		cli.StringFlag{
 			Name:  "amount",
 			Usage: "Amount of asset to send",
@@ -80,11 +70,11 @@ var (
 	multiTransferFlags = append([]cli.Flag{
 		walletPathFlag,
 		walletConfigFlag,
-		outFlag,
+		txctx.OutFlag,
 		fromAddrFlag,
-		gasFlag,
-		sysGasFlag,
-		forceFlag,
+		txctx.GasFlag,
+		txctx.SysGasFlag,
+		txctx.ForceFlag,
 	}, options.RPC...)
 )
 
@@ -143,7 +133,7 @@ func newNEP17Commands() []cli.Command {
 				walletPathFlag,
 				walletConfigFlag,
 				tokenFlag,
-				forceFlag,
+				txctx.ForceFlag,
 			},
 		},
 		{
@@ -599,7 +589,7 @@ func multiTransferNEP17(ctx *cli.Context) error {
 	if err != nil {
 		return cli.NewExitError(fmt.Errorf("can't make transaction: %w", err), 1)
 	}
-	return signAndSendSomeTransaction(ctx, act, acc, tx)
+	return txctx.SignAndSend(ctx, act, acc, tx)
 }
 
 func transferNEP17(ctx *cli.Context) error {
@@ -697,7 +687,7 @@ func transferNEP(ctx *cli.Context, standard string) error {
 		return cli.NewExitError(fmt.Errorf("can't make transaction: %w", err), 1)
 	}
 
-	return signAndSendSomeTransaction(ctx, act, acc, tx)
+	return txctx.SignAndSend(ctx, act, acc, tx)
 }
 
 func makeMultiTransferNEP17(act *actor.Actor, recipients []rpcclient.TransferTarget) (*transaction.Transaction, error) {
@@ -713,42 +703,6 @@ func makeMultiTransferNEP17(act *actor.Actor, recipients []rpcclient.TransferTar
 	return act.MakeUnsignedRun(script, nil)
 }
 
-func signAndSendSomeTransaction(ctx *cli.Context, act *actor.Actor, acc *wallet.Account, tx *transaction.Transaction) error {
-	var (
-		err    error
-		gas    = flags.Fixed8FromContext(ctx, "gas")
-		sysgas = flags.Fixed8FromContext(ctx, "sysgas")
-	)
-
-	tx.SystemFee += int64(sysgas)
-	tx.NetworkFee += int64(gas)
-
-	ver := act.GetVersion()
-	if outFile := ctx.String("out"); outFile != "" {
-		// Make a long-lived transaction, it's to be signed manually.
-		tx.ValidUntilBlock += (ver.Protocol.MaxValidUntilBlockIncrement - uint32(ver.Protocol.ValidatorsCount)) - 2
-		err = paramcontext.InitAndSave(ver.Protocol.Network, tx, acc, outFile)
-	} else {
-		if !ctx.Bool("force") {
-			promptTime := time.Now()
-			err := input.ConfirmTx(ctx.App.Writer, tx)
-			if err != nil {
-				return cli.NewExitError(err, 1)
-			}
-			waitTime := time.Since(promptTime)
-			// Compensate for confirmation waiting.
-			tx.ValidUntilBlock += uint32((waitTime.Milliseconds() / int64(ver.Protocol.MillisecondsPerBlock))) + 1
-		}
-		_, _, err = act.SignAndSend(tx)
-	}
-	if err != nil {
-		return cli.NewExitError(err, 1)
-	}
-
-	fmt.Fprintln(ctx.App.Writer, tx.Hash().StringLE())
-	return nil
-}
-
 func getDefaultAddress(fromFlag *flags.Address, w *wallet.Wallet) (util.Uint160, error) {
 	if fromFlag.IsSet {
 		return fromFlag.Uint160(), nil

cli/wallet/validator.go

@@ -7,6 +7,7 @@ import (
 	"github.com/nspcc-dev/neo-go/cli/flags"
 	"github.com/nspcc-dev/neo-go/cli/input"
 	"github.com/nspcc-dev/neo-go/cli/options"
+	"github.com/nspcc-dev/neo-go/cli/txctx"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
@@ -27,10 +28,10 @@ func newValidatorCommands() []cli.Command {
 			Flags: append([]cli.Flag{
 				walletPathFlag,
 				walletConfigFlag,
-				gasFlag,
-				sysGasFlag,
-				outFlag,
-				forceFlag,
+				txctx.GasFlag,
+				txctx.SysGasFlag,
+				txctx.OutFlag,
+				txctx.ForceFlag,
 				flags.AddressFlag{
 					Name:  "address, a",
 					Usage: "Address to register",
@@ -45,10 +46,10 @@ func newValidatorCommands() []cli.Command {
 			Flags: append([]cli.Flag{
 				walletPathFlag,
 				walletConfigFlag,
-				gasFlag,
-				sysGasFlag,
-				outFlag,
-				forceFlag,
+				txctx.GasFlag,
+				txctx.SysGasFlag,
+				txctx.OutFlag,
+				txctx.ForceFlag,
 				flags.AddressFlag{
 					Name:  "address, a",
 					Usage: "Address to unregister",
@@ -66,10 +67,10 @@ func newValidatorCommands() []cli.Command {
 			Flags: append([]cli.Flag{
 				walletPathFlag,
 				walletConfigFlag,
-				gasFlag,
-				sysGasFlag,
-				outFlag,
-				forceFlag,
+				txctx.GasFlag,
+				txctx.SysGasFlag,
+				txctx.OutFlag,
+				txctx.ForceFlag,
 				flags.AddressFlag{
 					Name:  "address, a",
 					Usage: "Address to vote from",
@@ -132,7 +133,7 @@ func handleNeoAction(ctx *cli.Context, mkTx func(*neo.Contract, util.Uint160, *w
 	if err != nil {
 		return cli.NewExitError(err, 1)
 	}
-	return signAndSendSomeTransaction(ctx, act, acc, tx)
+	return txctx.SignAndSend(ctx, act, acc, tx)
 }
 
 func handleVote(ctx *cli.Context) error {

cli/wallet/wallet.go

@@ -14,6 +14,7 @@ import (
 	"github.com/nspcc-dev/neo-go/cli/flags"
 	"github.com/nspcc-dev/neo-go/cli/input"
 	"github.com/nspcc-dev/neo-go/cli/options"
+	"github.com/nspcc-dev/neo-go/cli/txctx"
 	"github.com/nspcc-dev/neo-go/pkg/config"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
@@ -64,10 +65,6 @@ var (
 		Name:  "decrypt, d",
 		Usage: "Decrypt encrypted keys.",
 	}
-	outFlag = cli.StringFlag{
-		Name:  "out",
-		Usage: "file to put JSON transaction to",
-	}
 	inFlag = cli.StringFlag{
 		Name:  "in",
 		Usage: "file with JSON transaction",
@@ -80,10 +77,6 @@ var (
 		Name:  "to",
 		Usage: "Address to send an asset to",
 	}
-	forceFlag = cli.BoolFlag{
-		Name:  "force",
-		Usage: "Do not ask for a confirmation",
-	}
 )
 
 // NewCommands returns 'wallet' command.
@@ -91,10 +84,10 @@ func NewCommands() []cli.Command {
 	claimFlags := []cli.Flag{
 		walletPathFlag,
 		walletConfigFlag,
-		gasFlag,
-		sysGasFlag,
-		outFlag,
-		forceFlag,
+		txctx.GasFlag,
+		txctx.SysGasFlag,
+		txctx.OutFlag,
+		txctx.ForceFlag,
 		flags.AddressFlag{
 			Name:  "address, a",
 			Usage: "Address to claim GAS for",
@@ -104,7 +97,7 @@ func NewCommands() []cli.Command {
 	signFlags := []cli.Flag{
 		walletPathFlag,
 		walletConfigFlag,
-		outFlag,
+		txctx.OutFlag,
 		inFlag,
 		flags.AddressFlag{
 			Name:  "address, a",
@@ -287,7 +280,7 @@ func NewCommands() []cli.Command {
 				Flags: []cli.Flag{
 					walletPathFlag,
 					walletConfigFlag,
-					forceFlag,
+					txctx.ForceFlag,
 					flags.AddressFlag{
 						Name:  "address, a",
 						Usage: "Account address or hash in LE form to be removed",
@@ -322,7 +315,7 @@ func NewCommands() []cli.Command {
 				Flags: []cli.Flag{
 					walletPathFlag,
 					walletConfigFlag,
-					forceFlag,
+					txctx.ForceFlag,
 				},
 			},
 			{