neoneo-go/cli/wallet/nep5.go
Roman Khimov 16ce63e653 cli: unify RPC endpoint flags under options package
This makes rpc flags consistent across all commands, previously some commands
used 'endpoint, e' and some 'rpc, r', some had ability to change timeout and
some hadn't. Now 'rpc-endpoint, r' is used everywhere along with 'timeout, t'.
2020-06-18 12:10:59 +03:00

377 lines
9.4 KiB
Go

package wallet
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"github.com/nspcc-dev/neo-go/cli/flags"
"github.com/nspcc-dev/neo-go/cli/options"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/rpc/client"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/context"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/urfave/cli"
)
func newNEP5Commands() []cli.Command {
balanceFlags := []cli.Flag{
walletPathFlag,
cli.StringFlag{
Name: "addr",
Usage: "Address to use",
},
cli.StringFlag{
Name: "token",
Usage: "Token to use",
},
}
balanceFlags = append(balanceFlags, options.RPC...)
importFlags := []cli.Flag{
walletPathFlag,
cli.StringFlag{
Name: "token",
Usage: "Token contract hash in LE",
},
}
importFlags = append(importFlags, options.RPC...)
transferFlags := []cli.Flag{
walletPathFlag,
outFlag,
fromAddrFlag,
toAddrFlag,
cli.StringFlag{
Name: "token",
Usage: "Token to use",
},
cli.StringFlag{
Name: "amount",
Usage: "Amount of asset to send",
},
flags.Fixed8Flag{
Name: "gas",
Usage: "Amount of GAS to attach to a tx",
},
}
transferFlags = append(transferFlags, options.RPC...)
return []cli.Command{
{
Name: "balance",
Usage: "get address balance",
UsageText: "balance --path <path> --rpc-endpoint <node> --timeout <time> --addr <addr> [--token <hash-or-name>]",
Action: getNEP5Balance,
Flags: balanceFlags,
},
{
Name: "import",
Usage: "import NEP5 token to a wallet",
UsageText: "import --path <path> --rpc-endpoint <node> --timeout <time> --token <hash>",
Action: importNEP5Token,
Flags: importFlags,
},
{
Name: "info",
Usage: "print imported NEP5 token info",
UsageText: "print --path <path> [--token <hash-or-name>]",
Action: printNEP5Info,
Flags: []cli.Flag{
walletPathFlag,
cli.StringFlag{
Name: "token",
Usage: "Token name or hash",
},
},
},
{
Name: "remove",
Usage: "remove NEP5 token from the wallet",
UsageText: "remove --path <path> <hash-or-name>",
Action: removeNEP5Token,
Flags: []cli.Flag{
walletPathFlag,
cli.StringFlag{
Name: "token",
Usage: "Token name or hash",
},
forceFlag,
},
},
{
Name: "transfer",
Usage: "transfer NEP5 tokens",
UsageText: "transfer --path <path> --rpc-endpoint <node> --timeout <time> --from <addr> --to <addr> --token <hash> --amount string",
Action: transferNEP5,
Flags: transferFlags,
},
}
}
func getNEP5Balance(ctx *cli.Context) error {
wall, err := openWallet(ctx.String("path"))
if err != nil {
return cli.NewExitError(err, 1)
}
defer wall.Close()
addr := ctx.String("addr")
addrHash, err := address.StringToUint160(addr)
if err != nil {
return cli.NewExitError(fmt.Errorf("invalid address: %v", err), 1)
}
acc := wall.GetAccount(addrHash)
if acc == nil {
return cli.NewExitError(fmt.Errorf("can't find account for the address: %s", addr), 1)
}
gctx, cancel := options.GetTimeoutContext(ctx)
defer cancel()
c, err := options.GetRPCClient(gctx, ctx)
if err != nil {
return err
}
var token *wallet.Token
name := ctx.String("token")
if name != "" {
token, err = getMatchingToken(wall, name)
if err != nil {
token, err = getMatchingTokenRPC(c, addrHash, name)
if err != nil {
return cli.NewExitError(err, 1)
}
}
}
balances, err := c.GetNEP5Balances(addrHash)
if err != nil {
return cli.NewExitError(err, 1)
}
for i := range balances.Balances {
asset := balances.Balances[i].Asset
if name != "" && !token.Hash.Equals(asset) {
continue
}
fmt.Printf("TokenHash: %s\n", asset)
fmt.Printf("\tAmount : %s\n", balances.Balances[i].Amount)
fmt.Printf("\tUpdated: %d\n", balances.Balances[i].LastUpdated)
}
return nil
}
func getMatchingToken(w *wallet.Wallet, name string) (*wallet.Token, error) {
return getMatchingTokenAux(func(i int) *wallet.Token {
return w.Extra.Tokens[i]
}, len(w.Extra.Tokens), name)
}
func getMatchingTokenRPC(c *client.Client, addr util.Uint160, name string) (*wallet.Token, error) {
bs, err := c.GetNEP5Balances(addr)
if err != nil {
return nil, err
}
get := func(i int) *wallet.Token {
t, _ := c.NEP5TokenInfo(bs.Balances[i].Asset)
return t
}
return getMatchingTokenAux(get, len(bs.Balances), name)
}
func getMatchingTokenAux(get func(i int) *wallet.Token, n int, name string) (*wallet.Token, error) {
var token *wallet.Token
var count int
for i := 0; i < n; i++ {
t := get(i)
if t != nil && (t.Name == name || t.Symbol == name || t.Address() == name || t.Hash.StringLE() == name) {
if count == 1 {
printTokenInfo(token)
printTokenInfo(t)
return nil, errors.New("multiple matching tokens found")
}
count++
token = t
}
}
if count == 0 {
return nil, errors.New("token was not found")
}
return token, nil
}
func importNEP5Token(ctx *cli.Context) error {
wall, err := openWallet(ctx.String("path"))
if err != nil {
return cli.NewExitError(err, 1)
}
defer wall.Close()
tokenHash, err := util.Uint160DecodeStringLE(ctx.String("token"))
if err != nil {
return cli.NewExitError(fmt.Errorf("invalid token contract hash: %v", err), 1)
}
for _, t := range wall.Extra.Tokens {
if t.Hash.Equals(tokenHash) {
printTokenInfo(t)
return cli.NewExitError("token already exists", 1)
}
}
gctx, cancel := options.GetTimeoutContext(ctx)
defer cancel()
c, err := options.GetRPCClient(gctx, ctx)
if err != nil {
return err
}
tok, err := c.NEP5TokenInfo(tokenHash)
if err != nil {
return cli.NewExitError(fmt.Errorf("can't receive token info: %v", err), 1)
}
wall.AddToken(tok)
if err := wall.Save(); err != nil {
return cli.NewExitError(err, 1)
}
printTokenInfo(tok)
return nil
}
func printTokenInfo(tok *wallet.Token) {
fmt.Printf("Name:\t%s\n", tok.Name)
fmt.Printf("Symbol:\t%s\n", tok.Symbol)
fmt.Printf("Hash:\t%s\n", tok.Hash.StringLE())
fmt.Printf("Decimals: %d\n", tok.Decimals)
fmt.Printf("Address: %s\n", tok.Address())
}
func printNEP5Info(ctx *cli.Context) error {
wall, err := openWallet(ctx.String("path"))
if err != nil {
return cli.NewExitError(err, 1)
}
defer wall.Close()
if name := ctx.String("token"); name != "" {
token, err := getMatchingToken(wall, name)
if err != nil {
return cli.NewExitError(err, 1)
}
printTokenInfo(token)
return nil
}
for i, t := range wall.Extra.Tokens {
if i > 0 {
fmt.Println()
}
printTokenInfo(t)
}
return nil
}
func removeNEP5Token(ctx *cli.Context) error {
wall, err := openWallet(ctx.String("path"))
if err != nil {
return cli.NewExitError(err, 1)
}
defer wall.Close()
name := ctx.Args().First()
if name == "" {
return cli.NewExitError("token must be specified", 1)
}
token, err := getMatchingToken(wall, name)
if err != nil {
return cli.NewExitError(err, 1)
}
if !ctx.Bool("force") {
if ok := askForConsent(); !ok {
return nil
}
}
if err := wall.RemoveToken(token.Hash); err != nil {
return cli.NewExitError(fmt.Errorf("can't remove token: %v", err), 1)
} else if err := wall.Save(); err != nil {
return cli.NewExitError(fmt.Errorf("error while saving wallet: %v", err), 1)
}
return nil
}
func transferNEP5(ctx *cli.Context) error {
wall, err := openWallet(ctx.String("path"))
if err != nil {
return cli.NewExitError(err, 1)
}
defer wall.Close()
fromFlag := ctx.Generic("from").(*flags.Address)
from := fromFlag.Uint160()
acc := wall.GetAccount(from)
if acc == nil {
return cli.NewExitError(fmt.Errorf("can't find account for the address: %s", fromFlag), 1)
}
gctx, cancel := options.GetTimeoutContext(ctx)
defer cancel()
c, err := options.GetRPCClient(gctx, ctx)
if err != nil {
return err
}
toFlag := ctx.Generic("to").(*flags.Address)
to := toFlag.Uint160()
token, err := getMatchingToken(wall, ctx.String("token"))
if err != nil {
fmt.Println("Can't find matching token in the wallet. Querying RPC-node for balances.")
token, err = getMatchingTokenRPC(c, from, ctx.String("token"))
if err != nil {
return cli.NewExitError(err, 1)
}
}
amount, err := util.FixedNFromString(ctx.String("amount"), int(token.Decimals))
if err != nil {
return cli.NewExitError(fmt.Errorf("invalid amount: %v", err), 1)
}
gas := flags.Fixed8FromContext(ctx, "gas")
if pass, err := readPassword("Password > "); err != nil {
return cli.NewExitError(err, 1)
} else if err := acc.Decrypt(pass); err != nil {
return cli.NewExitError(err, 1)
}
tx, err := c.CreateNEP5TransferTx(acc, to, token.Hash, amount, gas)
if err != nil {
return cli.NewExitError(err, 1)
}
if outFile := ctx.String("out"); outFile != "" {
priv := acc.PrivateKey()
pub := priv.PublicKey()
sign := priv.Sign(tx.GetSignedPart())
scCtx := context.NewParameterContext("Neo.Core.ContractTransaction", tx)
if err := scCtx.AddSignature(acc.Contract, pub, sign); err != nil {
return cli.NewExitError(fmt.Errorf("can't add signature: %v", err), 1)
} else if data, err := json.Marshal(scCtx); err != nil {
return cli.NewExitError(fmt.Errorf("can't marshal tx to JSON: %v", err), 1)
} else if err := ioutil.WriteFile(outFile, data, 0644); err != nil {
return cli.NewExitError(fmt.Errorf("can't write tx to file: %v", err), 1)
}
} else {
_ = acc.SignTx(tx)
if err := c.SendRawTransaction(tx); err != nil {
return cli.NewExitError(err, 1)
}
}
fmt.Println(tx.Hash().StringLE())
return nil
}