frostfs-node/cmd/neofs-cli/modules/root.go

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package cmd
import (
"crypto/ecdsa"
"crypto/tls"
"errors"
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/mitchellh/go-homedir"
"github.com/nspcc-dev/neo-go/cli/flags"
"github.com/nspcc-dev/neo-go/cli/input"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-node/pkg/network"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
const (
envPrefix = "NEOFS_CLI"
ttlDefaultValue = 2
)
const xHeadersFlag = "xhdr"
var xHeaders []string
// Global scope flags.
var (
cfgFile string
verbose bool
)
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "neofs-cli",
Short: "Command Line Tool to work with NeoFS",
Long: `NeoFS CLI provides all basic interactions with NeoFS and it's services.
It contains commands for interaction with NeoFS nodes using different versions
of neofs-api and some useful utilities for compiling ACL rules from JSON
notation, managing container access through protocol gates, querying network map
and much more!`,
}
var (
errInvalidKey = errors.New("provided key is incorrect")
errInvalidEndpoint = errors.New("provided RPC endpoint is incorrect")
errCantGenerateKey = errors.New("can't generate new private key")
errInvalidAddress = errors.New("--address option must be specified and valid")
errInvalidPassword = errors.New("invalid password for the encrypted key")
)
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := rootCmd.Execute(); err != nil {
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
// Here you will define your flags and configuration settings.
// Cobra supports persistent flags, which, if defined here,
// will be global for your application.
// use stdout as default output for cmd.Print()
rootCmd.SetOut(os.Stdout)
rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "config file (default is $HOME/.config/neofs-cli/config.yaml)")
// Key options.
rootCmd.PersistentFlags().BoolP("generate-key", "", false, "generate new private key")
_ = viper.BindPFlag("generate-key", rootCmd.PersistentFlags().Lookup("generate-key"))
rootCmd.PersistentFlags().StringP("binary-key", "", "", "path to the raw private key file")
_ = viper.BindPFlag("binary-key", rootCmd.PersistentFlags().Lookup("binary-key"))
rootCmd.PersistentFlags().StringP("wif", "", "", "WIF or NEP-2")
_ = viper.BindPFlag("wif", rootCmd.PersistentFlags().Lookup("wif"))
rootCmd.PersistentFlags().StringP("wallet", "w", "", "path to the wallet")
_ = viper.BindPFlag("wallet", rootCmd.PersistentFlags().Lookup("wallet"))
rootCmd.PersistentFlags().StringP("address", "", "", "address of wallet account")
_ = viper.BindPFlag("address", rootCmd.PersistentFlags().Lookup("address"))
rootCmd.PersistentFlags().StringP("rpc-endpoint", "r", "", "remote node address (as 'multiaddr' or '<host>:<port>')")
_ = viper.BindPFlag("rpc", rootCmd.PersistentFlags().Lookup("rpc-endpoint"))
rootCmd.PersistentFlags().Uint32("ttl", ttlDefaultValue, "TTL value in request meta header")
_ = viper.BindPFlag("ttl", rootCmd.PersistentFlags().Lookup("ttl"))
rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose output")
rootCmd.PersistentFlags().StringSliceVarP(&xHeaders, xHeadersFlag, "x", nil,
"Request X-Headers in form of Key=Value")
_ = viper.BindPFlag(xHeadersFlag, rootCmd.PersistentFlags().Lookup(xHeadersFlag))
// Cobra also supports local flags, which will only run
// when this action is called directly.
// rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Search config in home directory with name ".main" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".config/neofs-cli")
}
viper.SetEnvPrefix(envPrefix)
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
printVerbose("Using config file: %s", viper.ConfigFileUsed())
}
}
const nep2Base58Length = 58
// getKey returns private key that was provided in global arguments.
func getKey() (*ecdsa.PrivateKey, error) {
if viper.GetBool("generate-key") {
priv, err := keys.NewPrivateKey()
if err != nil {
return nil, errCantGenerateKey
}
return &priv.PrivateKey, nil
}
if keyPath := viper.GetString("binary-key"); keyPath != "" {
return getKeyFromFile(keyPath)
}
if walletPath := viper.GetString("wallet"); walletPath != "" {
w, err := wallet.NewWalletFromFile(walletPath)
if err != nil {
return nil, fmt.Errorf("%w: %v", errInvalidKey, err)
}
return getKeyFromWallet(w, viper.GetString("address"))
}
wif := viper.GetString("wif")
if len(wif) == nep2Base58Length {
return getKeyFromNEP2(wif)
}
priv, err := keys.NewPrivateKeyFromWIF(wif)
if err != nil {
return nil, fmt.Errorf("%w: %v", errInvalidKey, err)
}
return &priv.PrivateKey, nil
}
func getKeyFromFile(keyPath string) (*ecdsa.PrivateKey, error) {
data, err := ioutil.ReadFile(keyPath)
if err != nil {
return nil, fmt.Errorf("%w: %v", errInvalidKey, err)
}
priv, err := keys.NewPrivateKeyFromBytes(data)
if err != nil {
return nil, fmt.Errorf("%w: %v", errInvalidKey, err)
}
return &priv.PrivateKey, nil
}
func getKeyFromNEP2(encryptedWif string) (*ecdsa.PrivateKey, error) {
pass, err := input.ReadPassword("Enter password > ")
if err != nil {
printVerbose("Can't read password: %v", err)
return nil, errInvalidPassword
}
k, err := keys.NEP2Decrypt(encryptedWif, pass)
if err != nil {
printVerbose("Invalid key or password: %v", err)
return nil, errInvalidPassword
}
return &k.PrivateKey, nil
}
func getKeyFromWallet(w *wallet.Wallet, addrStr string) (*ecdsa.PrivateKey, error) {
if addrStr == "" {
printVerbose("Address is empty")
return nil, errInvalidAddress
}
addr, err := flags.ParseAddress(addrStr)
if err != nil {
printVerbose("Can't parse address: %s", addrStr)
return nil, errInvalidAddress
}
acc := w.GetAccount(addr)
if acc == nil {
printVerbose("Can't find wallet account for %s", addrStr)
return nil, errInvalidAddress
}
pass, err := input.ReadPassword("Enter password > ")
if err != nil {
printVerbose("Can't read password: %v", err)
return nil, errInvalidPassword
}
if err := acc.Decrypt(pass); err != nil {
printVerbose("Can't decrypt account: %v", err)
return nil, errInvalidPassword
}
return &acc.PrivateKey().PrivateKey, nil
}
// getEndpointAddress returns network address structure that stores multiaddr
// inside, parsed from global arguments.
func getEndpointAddress() (*network.Address, error) {
endpoint := viper.GetString("rpc")
addr, err := network.AddressFromString(endpoint)
if err != nil {
return nil, errInvalidEndpoint
}
return addr, nil
}
// getSDKClient returns default neofs-api-go sdk client. Consider using
// opts... to provide TTL or other global configuration flags.
func getSDKClient(key *ecdsa.PrivateKey) (client.Client, error) {
netAddr, err := getEndpointAddress()
if err != nil {
return nil, err
}
hostAddr, err := netAddr.HostAddrString()
if err != nil {
return nil, errInvalidEndpoint
}
options := []client.Option{
client.WithAddress(hostAddr),
client.WithDefaultPrivateKey(key),
}
if netAddr.TLSEnabled() {
options = append(options, client.WithTLSConfig(&tls.Config{}))
}
c, err := client.New(options...)
return c, err
}
func getTTL() uint32 {
ttl := viper.GetUint32("ttl")
printVerbose("TTL: %d", ttl)
return ttl
}
// ownerFromString converts string with NEO3 wallet address to neofs owner ID.
func ownerFromString(s string) (*owner.ID, error) {
result := owner.NewID()
err := result.Parse(s)
if err != nil {
return nil, errors.New("can't decode owner ID wallet address")
}
return result, nil
}
func printVerbose(format string, a ...interface{}) {
if verbose {
fmt.Printf(format+"\n", a...)
}
}
func parseXHeaders() []*pkg.XHeader {
xs := make([]*pkg.XHeader, 0, len(xHeaders))
for i := range xHeaders {
kv := strings.SplitN(xHeaders[i], "=", 2)
if len(kv) != 2 {
panic(fmt.Errorf("invalid X-Header format: %s", xHeaders[i]))
}
x := pkg.NewXHeader()
x.SetKey(kv[0])
x.SetValue(kv[1])
xs = append(xs, x)
}
return xs
}
func globalCallOptions() []client.CallOption {
xHdrs := parseXHeaders()
opts := make([]client.CallOption, 0, len(xHdrs)+1) // + TTL
opts = append(opts, client.WithTTL(getTTL()))
for i := range xHdrs {
opts = append(opts, client.WithXHeader(xHdrs[i]))
}
return opts
}