neoneo-go/cli/txctx/tx.go

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/*
Package txctx contains helper functions that deal with transactions in CLI context.
*/
package txctx
import (
"fmt"
"io"
"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/state"
"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/util"
"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)",
}
// AwaitFlag is a flag used to wait for the transaction to be included in a block.
AwaitFlag = cli.BoolFlag{
Name: "await",
Usage: "wait for the transaction to be included in a block",
}
)
// 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()
aer *state.AppExecResult
)
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)) + 2
}
var (
resTx util.Uint256
vub uint32
)
resTx, vub, err = act.SignAndSend(tx)
if err != nil {
return cli.NewExitError(err, 1)
}
if ctx.Bool("await") {
aer, err = act.Wait(resTx, vub, err)
if err != nil {
return cli.NewExitError(fmt.Errorf("failed to await transaction %s: %w", resTx.StringLE(), err), 1)
}
}
}
if err != nil {
return cli.NewExitError(err, 1)
}
DumpTransactionInfo(ctx.App.Writer, tx.Hash(), aer)
return nil
}
// DumpTransactionInfo prints transaction info to the given writer.
func DumpTransactionInfo(w io.Writer, h util.Uint256, res *state.AppExecResult) {
fmt.Fprintln(w, h.StringLE())
if res != nil {
fmt.Fprintf(w, "OnChain:\t%t\n", res != nil)
fmt.Fprintf(w, "VMState:\t%s\n", res.VMState.String())
if res.FaultException != "" {
fmt.Fprintf(w, "FaultException:\t%s\n", res.FaultException)
}
}
}