0e2784cd2c
It doesn't really change anything in most of the cases, but it's a useful habit anyway. Fix #350.
485 lines
12 KiB
Go
485 lines
12 KiB
Go
package wallet
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"strings"
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"github.com/nspcc-dev/neo-go/cli/flags"
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"github.com/nspcc-dev/neo-go/cli/options"
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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/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
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"github.com/urfave/cli"
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)
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// validUntilBlockIncrement is the number of extra blocks to add to an exported transaction
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const validUntilBlockIncrement = 50
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var (
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neoToken = wallet.NewToken(client.NeoContractHash, "NEO", "neo", 0)
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gasToken = wallet.NewToken(client.GasContractHash, "GAS", "gas", 8)
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)
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var (
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tokenFlag = cli.StringFlag{
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Name: "token",
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Usage: "Token to use",
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}
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gasFlag = flags.Fixed8Flag{
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Name: "gas",
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Usage: "Amount of GAS to attach to a tx",
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}
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)
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func newNEP5Commands() []cli.Command {
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balanceFlags := []cli.Flag{
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walletPathFlag,
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tokenFlag,
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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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balanceFlags = append(balanceFlags, options.RPC...)
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importFlags := []cli.Flag{
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walletPathFlag,
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cli.StringFlag{
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Name: "token",
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Usage: "Token contract hash in LE",
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},
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}
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importFlags = append(importFlags, options.RPC...)
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transferFlags := []cli.Flag{
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walletPathFlag,
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outFlag,
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fromAddrFlag,
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toAddrFlag,
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tokenFlag,
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gasFlag,
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cli.StringFlag{
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Name: "amount",
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Usage: "Amount of asset to send",
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},
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}
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transferFlags = append(transferFlags, options.RPC...)
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multiTransferFlags := []cli.Flag{
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walletPathFlag,
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outFlag,
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fromAddrFlag,
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gasFlag,
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}
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multiTransferFlags = append(multiTransferFlags, options.RPC...)
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return []cli.Command{
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{
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Name: "balance",
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Usage: "get address balance",
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UsageText: "balance --wallet <path> --rpc-endpoint <node> --timeout <time> --addr <addr> [--token <hash-or-name>]",
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Action: getNEP5Balance,
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Flags: balanceFlags,
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},
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{
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Name: "import",
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Usage: "import NEP5 token to a wallet",
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UsageText: "import --wallet <path> --rpc-endpoint <node> --timeout <time> --token <hash>",
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Action: importNEP5Token,
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Flags: importFlags,
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},
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{
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Name: "info",
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Usage: "print imported NEP5 token info",
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UsageText: "print --wallet <path> [--token <hash-or-name>]",
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Action: printNEP5Info,
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Flags: []cli.Flag{
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walletPathFlag,
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cli.StringFlag{
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Name: "token",
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Usage: "Token name or hash",
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},
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},
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},
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{
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Name: "remove",
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Usage: "remove NEP5 token from the wallet",
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UsageText: "remove --wallet <path> <hash-or-name>",
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Action: removeNEP5Token,
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Flags: []cli.Flag{
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walletPathFlag,
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cli.StringFlag{
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Name: "token",
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Usage: "Token name or hash",
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},
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forceFlag,
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},
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},
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{
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Name: "transfer",
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Usage: "transfer NEP5 tokens",
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UsageText: "transfer --wallet <path> --rpc-endpoint <node> --timeout <time> --from <addr> --to <addr> --token <hash> --amount string",
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Action: transferNEP5,
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Flags: transferFlags,
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},
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{
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Name: "multitransfer",
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Usage: "transfer NEP5 tokens to multiple recepients",
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UsageText: `multitransfer --wallet <path> --rpc-endpoint <node> --timeout <time> --from <addr>` +
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` <token1>:<addr1>:<amount1> [<token2>:<addr2>:<amount2> [...]]`,
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Action: multiTransferNEP5,
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Flags: multiTransferFlags,
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},
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}
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}
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func getNEP5Balance(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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addr := ctx.String("addr")
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addrHash, err := address.StringToUint160(addr)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid address: %w", err), 1)
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}
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acc := wall.GetAccount(addrHash)
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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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gctx, cancel := options.GetTimeoutContext(ctx)
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defer cancel()
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c, err := options.GetRPCClient(gctx, ctx)
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if err != nil {
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return err
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}
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var token *wallet.Token
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name := ctx.String("token")
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if name != "" {
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token, err = getMatchingToken(wall, name)
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if err != nil {
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token, err = getMatchingTokenRPC(c, addrHash, name)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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}
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}
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balances, err := c.GetNEP5Balances(addrHash)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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for i := range balances.Balances {
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asset := balances.Balances[i].Asset
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if name != "" && !token.Hash.Equals(asset) {
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continue
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}
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fmt.Printf("TokenHash: %s\n", asset.StringLE())
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fmt.Printf("\tAmount : %s\n", balances.Balances[i].Amount)
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fmt.Printf("\tUpdated: %d\n", balances.Balances[i].LastUpdated)
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}
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return nil
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}
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func getMatchingToken(w *wallet.Wallet, name string) (*wallet.Token, error) {
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switch strings.ToLower(name) {
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case "neo":
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return neoToken, nil
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case "gas":
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return gasToken, nil
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}
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return getMatchingTokenAux(func(i int) *wallet.Token {
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return w.Extra.Tokens[i]
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}, len(w.Extra.Tokens), name)
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}
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func getMatchingTokenRPC(c *client.Client, addr util.Uint160, name string) (*wallet.Token, error) {
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bs, err := c.GetNEP5Balances(addr)
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if err != nil {
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return nil, err
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}
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get := func(i int) *wallet.Token {
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t, _ := c.NEP5TokenInfo(bs.Balances[i].Asset)
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return t
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}
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return getMatchingTokenAux(get, len(bs.Balances), name)
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}
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func getMatchingTokenAux(get func(i int) *wallet.Token, n int, name string) (*wallet.Token, error) {
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var token *wallet.Token
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var count int
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for i := 0; i < n; i++ {
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t := get(i)
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if t != nil && (t.Name == name || t.Symbol == name || t.Address() == name || t.Hash.StringLE() == name) {
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if count == 1 {
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printTokenInfo(token)
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printTokenInfo(t)
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return nil, errors.New("multiple matching tokens found")
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}
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count++
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token = t
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}
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}
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if count == 0 {
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return nil, errors.New("token was not found")
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}
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return token, nil
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}
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func importNEP5Token(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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tokenHash, err := util.Uint160DecodeStringLE(ctx.String("token"))
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid token contract hash: %w", err), 1)
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}
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for _, t := range wall.Extra.Tokens {
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if t.Hash.Equals(tokenHash) {
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printTokenInfo(t)
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return cli.NewExitError("token already exists", 1)
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}
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}
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gctx, cancel := options.GetTimeoutContext(ctx)
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defer cancel()
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c, err := options.GetRPCClient(gctx, ctx)
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if err != nil {
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return err
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}
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tok, err := c.NEP5TokenInfo(tokenHash)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't receive token info: %w", err), 1)
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}
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wall.AddToken(tok)
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if err := wall.Save(); err != nil {
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return cli.NewExitError(err, 1)
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}
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printTokenInfo(tok)
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return nil
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}
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func printTokenInfo(tok *wallet.Token) {
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fmt.Printf("Name:\t%s\n", tok.Name)
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fmt.Printf("Symbol:\t%s\n", tok.Symbol)
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fmt.Printf("Hash:\t%s\n", tok.Hash.StringLE())
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fmt.Printf("Decimals: %d\n", tok.Decimals)
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fmt.Printf("Address: %s\n", tok.Address())
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}
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func printNEP5Info(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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if name := ctx.String("token"); name != "" {
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token, err := getMatchingToken(wall, name)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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printTokenInfo(token)
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return nil
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}
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for i, t := range wall.Extra.Tokens {
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if i > 0 {
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fmt.Println()
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}
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printTokenInfo(t)
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}
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return nil
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}
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func removeNEP5Token(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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name := ctx.Args().First()
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if name == "" {
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return cli.NewExitError("token must be specified", 1)
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}
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token, err := getMatchingToken(wall, name)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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if !ctx.Bool("force") {
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if ok := askForConsent(); !ok {
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return nil
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}
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}
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if err := wall.RemoveToken(token.Hash); err != nil {
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return cli.NewExitError(fmt.Errorf("can't remove token: %w", err), 1)
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} else if err := wall.Save(); err != nil {
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return cli.NewExitError(fmt.Errorf("error while saving wallet: %w", err), 1)
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}
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return nil
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}
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func multiTransferNEP5(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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fromFlag := ctx.Generic("from").(*flags.Address)
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from := fromFlag.Uint160()
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acc := wall.GetAccount(from)
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if acc == nil {
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return cli.NewExitError(fmt.Errorf("can't find account for the address: %s", fromFlag), 1)
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}
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gctx, cancel := options.GetTimeoutContext(ctx)
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defer cancel()
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c, err := options.GetRPCClient(gctx, ctx)
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if err != nil {
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return err
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}
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if ctx.NArg() == 0 {
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return cli.NewExitError("empty recepients list", 1)
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}
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var recepients []client.TransferTarget
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cache := make(map[string]*wallet.Token)
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for i := 0; i < ctx.NArg(); i++ {
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arg := ctx.Args().Get(i)
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ss := strings.SplitN(arg, ":", 3)
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if len(ss) != 3 {
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return cli.NewExitError("send format must be '<token>:<addr>:<amount>", 1)
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}
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token, ok := cache[ss[0]]
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if !ok {
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token, err = getMatchingToken(wall, ss[0])
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if err != nil {
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fmt.Println("Can't find matching token in the wallet. Querying RPC-node for balances.")
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token, err = getMatchingTokenRPC(c, from, ctx.String("token"))
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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}
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}
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cache[ss[0]] = token
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addr, err := address.StringToUint160(ss[1])
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid address: '%s'", ss[1]), 1)
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}
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amount, err := util.FixedNFromString(ss[2], int(token.Decimals))
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid amount: %w", err), 1)
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}
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recepients = append(recepients, client.TransferTarget{
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Token: token.Hash,
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Address: addr,
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Amount: amount,
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})
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}
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return signAndSendTransfer(ctx, c, acc, recepients)
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}
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func transferNEP5(ctx *cli.Context) error {
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wall, err := openWallet(ctx.String("wallet"))
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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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fromFlag := ctx.Generic("from").(*flags.Address)
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from := fromFlag.Uint160()
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acc := wall.GetAccount(from)
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if acc == nil {
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return cli.NewExitError(fmt.Errorf("can't find account for the address: %s", fromFlag), 1)
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}
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gctx, cancel := options.GetTimeoutContext(ctx)
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defer cancel()
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c, err := options.GetRPCClient(gctx, ctx)
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if err != nil {
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return err
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}
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toFlag := ctx.Generic("to").(*flags.Address)
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to := toFlag.Uint160()
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token, err := getMatchingToken(wall, ctx.String("token"))
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if err != nil {
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fmt.Println("Can't find matching token in the wallet. Querying RPC-node for balances.")
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token, err = getMatchingTokenRPC(c, from, ctx.String("token"))
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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}
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amount, err := util.FixedNFromString(ctx.String("amount"), int(token.Decimals))
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid amount: %w", err), 1)
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}
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return signAndSendTransfer(ctx, c, acc, []client.TransferTarget{{
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Token: token.Hash,
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Address: to,
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Amount: amount,
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}})
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}
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func signAndSendTransfer(ctx *cli.Context, c *client.Client, acc *wallet.Account, recepients []client.TransferTarget) error {
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gas := flags.Fixed8FromContext(ctx, "gas")
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if pass, err := readPassword("Password > "); 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(err, 1)
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}
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tx, err := c.CreateNEP5MultiTransferTx(acc, int64(gas), recepients...)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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if outFile := ctx.String("out"); outFile != "" {
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// avoid fast transaction expiration
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tx.ValidUntilBlock += validUntilBlockIncrement
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priv := acc.PrivateKey()
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pub := priv.PublicKey()
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sign := priv.Sign(tx.GetSignedPart())
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scCtx := context.NewParameterContext("Neo.Core.ContractTransaction", tx)
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if err := scCtx.AddSignature(acc.Contract, pub, sign); err != nil {
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return cli.NewExitError(fmt.Errorf("can't add signature: %w", err), 1)
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} else if data, err := json.Marshal(scCtx); err != nil {
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return cli.NewExitError(fmt.Errorf("can't marshal tx to JSON: %w", err), 1)
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} else if err := ioutil.WriteFile(outFile, data, 0644); err != nil {
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return cli.NewExitError(fmt.Errorf("can't write tx to file: %w", err), 1)
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}
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} else {
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_ = acc.SignTx(tx)
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res, err := c.SendRawTransaction(tx)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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fmt.Println(res.StringLE())
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return nil
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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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