124 lines
3.3 KiB
Go
124 lines
3.3 KiB
Go
package wallet
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/encoding/address"
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"github.com/nspcc-dev/neo-go/pkg/rpc/client"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/context"
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"github.com/urfave/cli"
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)
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func newMultisigCommands() []cli.Command {
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return []cli.Command{
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{
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Name: "sign",
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Usage: "sign a transaction",
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UsageText: "multisig sign --path <path> --addr <addr> --in <file.in> --out <file.out>",
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Action: signMultisig,
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Flags: []cli.Flag{
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walletPathFlag,
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rpcFlag,
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timeoutFlag,
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outFlag,
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inFlag,
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cli.StringFlag{
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Name: "addr",
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Usage: "Address to use",
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},
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},
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},
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}
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}
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func signMultisig(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("path"))
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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defer wall.Close()
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c, err := readParameterContext(ctx.String("in"))
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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addr := ctx.String("addr")
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sh, err := address.StringToUint160(addr)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid address: %v", err), 1)
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}
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acc := wall.GetAccount(sh)
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if acc == nil {
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return cli.NewExitError(fmt.Errorf("can't find account for the address: %s", addr), 1)
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}
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tx, ok := c.Verifiable.(*transaction.Transaction)
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if !ok {
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return cli.NewExitError("verifiable item is not a transaction", 1)
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}
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printTxInfo(tx)
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fmt.Println("Enter password to unlock wallet and sign the transaction")
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pass, err := readPassword("Password > ")
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if err != nil {
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return cli.NewExitError(err, 1)
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} else if err := acc.Decrypt(pass); err != nil {
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return cli.NewExitError(fmt.Errorf("can't unlock an account: %v", err), 1)
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}
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priv := acc.PrivateKey()
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sign := priv.Sign(tx.GetSignedPart())
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if err := c.AddSignature(acc.Contract, priv.PublicKey(), sign); err != nil {
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return cli.NewExitError(fmt.Errorf("can't add signature: %v", err), 1)
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} else if err := writeParameterContext(c, ctx.String("out")); err != nil {
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return cli.NewExitError(err, 1)
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}
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if endpoint := ctx.String("rpc"); endpoint != "" {
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w, err := c.GetWitness(acc.Contract)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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tx.Scripts = append(tx.Scripts, *w)
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gctx, cancel := getGoContext(ctx)
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defer cancel()
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c, err := client.New(gctx, ctx.String("rpc"), client.Options{})
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if err != nil {
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return cli.NewExitError(err, 1)
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} else if err := c.SendRawTransaction(tx); err != nil {
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return cli.NewExitError(err, 1)
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}
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}
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fmt.Println(tx.Hash().StringLE())
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return nil
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}
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func readParameterContext(filename string) (*context.ParameterContext, error) {
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data, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("can't read input file: %v", err)
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}
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c := new(context.ParameterContext)
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if err := json.Unmarshal(data, c); err != nil {
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return nil, fmt.Errorf("can't parse transaction: %v", err)
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}
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return c, nil
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}
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func writeParameterContext(c *context.ParameterContext, filename string) error {
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if data, err := json.Marshal(c); err != nil {
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return fmt.Errorf("can't marshal transaction: %v", err)
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} else if err := ioutil.WriteFile(filename, data, 0644); err != nil {
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return fmt.Errorf("can't write transaction to file: %v", err)
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}
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return nil
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}
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func printTxInfo(t *transaction.Transaction) {
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fmt.Printf("Hash: %s\n", t.Hash().StringLE())
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}
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