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Merge pull request #609 from LeoHChen/wallet_cleanup_and_simplify

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Wallet cleanup and simplify
pull/606/head
Leo Chen 6 years ago committed by GitHub
parent 0f175ad2db da1967dca1
commit 0398c43222
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 145 additions and 238 deletions
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  1. 32
      api/client/service/client.go
  2. 205
      cmd/client/wallet/main.go
  3. 85
      internal/wallet/wallet/lib.go
  4. 47
      internal/wallet/wallet/lib_test.go

32
api/client/service/client.go
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@ -3,7 +3,6 @@ package client
import (
"context"
"fmt"
"log"
"time"
"github.com/ethereum/go-ethereum/common"
@ -20,18 +19,17 @@ type Client struct {
}
// NewClient setups a Client given ip and port.
func NewClient(ip, port string) *Client {
func NewClient(ip, port string) (*Client, error) {
client := Client{}
client.opts = append(client.opts, grpc.WithInsecure())
var err error
client.conn, err = grpc.Dial(fmt.Sprintf("%s:%s", ip, port), client.opts...)
if err != nil {
log.Fatalf("fail to dial: %v", err)
return nil
return nil, err
}
client.clientServiceClient = proto.NewClientServiceClient(client.conn)
return &client
return &client, nil
}
// Close closes the Client.
@ -40,37 +38,25 @@ func (client *Client) Close() {
}
// GetBalance gets account balance from the client service.
func (client *Client) GetBalance(address common.Address) *proto.FetchAccountStateResponse {
func (client *Client) GetBalance(address common.Address) (*proto.FetchAccountStateResponse, error) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
request := &proto.FetchAccountStateRequest{Address: address.Bytes()}
response, err := client.clientServiceClient.FetchAccountState(ctx, request)
if err != nil {
log.Fatalf("Error getting balance: %s", err)
}
return response
return client.clientServiceClient.FetchAccountState(ctx, request)
}
// GetFreeToken requests free token from the faucet contract.
func (client *Client) GetFreeToken(address common.Address) *proto.GetFreeTokenResponse {
func (client *Client) GetFreeToken(address common.Address) (*proto.GetFreeTokenResponse, error) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
request := &proto.GetFreeTokenRequest{Address: address.Bytes()}
response, err := client.clientServiceClient.GetFreeToken(ctx, request)
if err != nil {
log.Fatalf("Error getting free token: %s", err)
}
return response
return client.clientServiceClient.GetFreeToken(ctx, request)
}
// GetStakingContractInfo gets necessary info for staking.
func (client *Client) GetStakingContractInfo(address common.Address) *proto.StakingContractInfoResponse {
func (client *Client) GetStakingContractInfo(address common.Address) (*proto.StakingContractInfoResponse, error) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
request := &proto.StakingContractInfoRequest{Address: address.Bytes()}
response, err := client.clientServiceClient.GetStakingContractInfo(ctx, request)
if err != nil {
log.Fatalf("Error getting free token: %s", err)
}
return response
return client.clientServiceClient.GetStakingContractInfo(ctx, request)
}

205
cmd/client/wallet/main.go
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@ -2,7 +2,7 @@ package main
import (
"crypto/ecdsa"
"crypto/rand"
cRand "crypto/rand"
"encoding/base64"
"encoding/hex"
"flag"
@ -10,6 +10,7 @@ import (
"io"
"io/ioutil"
"math/big"
"math/rand"
"os"
"path"
"strconv"
@ -20,10 +21,16 @@ import (
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/harmony-one/harmony/api/client"
clientService "github.com/harmony-one/harmony/api/client/service"
proto_node "github.com/harmony-one/harmony/api/proto/node"
"github.com/harmony-one/harmony/core/types"
"github.com/harmony-one/harmony/internal/wallet/wallet"
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
"github.com/harmony-one/harmony/internal/utils"
"github.com/harmony-one/harmony/node"
"github.com/harmony-one/harmony/p2p"
p2p_host "github.com/harmony-one/harmony/p2p/host"
"github.com/harmony-one/harmony/p2p/p2pimpl"
)
var (
@ -44,6 +51,10 @@ type AccountState struct {
nonce uint64
}
const (
rpcRetry = 3
)
var (
// Account subcommands
accountImportCommand = flag.NewFlagSet("import", flag.ExitOnError)
@ -54,7 +65,7 @@ var (
transferSenderPtr = transferCommand.String("from", "0", "Specify the sender account address or index")
transferReceiverPtr = transferCommand.String("to", "", "Specify the receiver account")
transferAmountPtr = transferCommand.Float64("amount", 0, "Specify the amount to transfer")
transferShardIDPtr = transferCommand.Int("shardID", -1, "Specify the shard ID for the transfer")
transferShardIDPtr = transferCommand.Int("shardID", 0, "Specify the shard ID for the transfer")
transferInputDataPtr = transferCommand.String("inputData", "", "Base64-encoded input data to embed in the transaction")
freeTokenCommand = flag.NewFlagSet("getFreeToken", flag.ExitOnError)
@ -62,25 +73,38 @@ var (
balanceCommand = flag.NewFlagSet("getFreeToken", flag.ExitOnError)
balanceAddressPtr = balanceCommand.String("address", "", "Specify the account address to check balance for")
)
// Quit the program once stopChan received message
stopChan = make(chan struct{})
// Print out progress char
tick = time.NewTicker(time.Second)
// Flag to keep waiting for async call finished
async = true
var (
// list of bootnodes
addrStrings = []string{"/ip4/100.26.90.187/tcp/9876/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9", "/ip4/54.213.43.194/tcp/9876/p2p/QmQayinFSgMMw5cSpDUiD9pQ2WeP6WNmGxpZ6ou3mdVFJX"}
// list of rpc servers
// TODO; (leo) take build time parameters or environment parameters to add rpcServers
// Then this can be automated
rpcServers = []struct {
IP string
Port string
}{
{"18.236.96.207", "14555"},
{"18.206.91.170", "14555"},
{"54.213.63.26", "14555"},
{"13.229.96.10", "14555"},
{"34.243.2.56", "14555"},
}
)
// setupLog setup log for verbose output
func setupLog() {
// enable logging for wallet
h := log.StreamHandler(os.Stdout, log.TerminalFormat(false))
h := log.StreamHandler(os.Stdout, log.TerminalFormat(true))
log.Root().SetHandler(h)
}
// The main wallet program entrance. Note the this wallet program is for demo-purpose only. It does not implement
// the secure storage of keys.
func main() {
rand.Seed(int64(time.Now().Nanosecond()))
// Verify that a subcommand has been provided
// os.Arg[0] is the main command
@ -118,45 +142,60 @@ func main() {
case "-version":
printVersion(os.Args[0])
case "new":
go processNewCommnad()
processNewCommnad()
case "list":
go processListCommand()
processListCommand()
case "removeAll":
go clearKeystore()
fmt.Println("All existing accounts deleted...")
clearKeystore()
case "import":
go processImportCommnad()
processImportCommnad()
case "balances":
go processBalancesCommand()
processBalancesCommand()
case "getFreeToken":
go processGetFreeToken()
processGetFreeToken()
case "transfer":
go processTransferCommand()
processTransferCommand()
default:
fmt.Printf("Unknown action: %s\n", os.Args[1])
flag.PrintDefaults()
os.Exit(1)
}
}
// Waiting for async call finished and print out some progress
for async {
select {
case <-tick.C:
fmt.Printf("=")
case <-stopChan:
fmt.Println("Done.")
os.Exit(0)
// createWalletNode creates wallet server node.
func createWalletNode() *node.Node {
bootNodeAddrs, err := utils.StringsToAddrs(addrStrings)
if err != nil {
panic(err)
}
utils.BootNodes = bootNodeAddrs
shardIDs := []uint32{0}
// dummy host for wallet
// TODO: potentially, too many dummy IP may flush out good IP address from our bootnode DHT
// we need to understand the impact to bootnode DHT with this dummy host ip added
self := p2p.Peer{IP: "127.0.0.1", Port: "6999"}
priKey, _, _ := utils.GenKeyP2P("127.0.0.1", "6999")
host, err := p2pimpl.NewHost(&self, priKey)
if err != nil {
panic(err)
}
w := node.New(host, nil, nil)
w.Client = client.NewClient(w.GetHost(), shardIDs)
w.NodeConfig.SetRole(nodeconfig.ClientNode)
w.ServiceManagerSetup()
w.RunServices()
return w
}
func processNewCommnad() {
randomBytes := [32]byte{}
_, err := io.ReadFull(rand.Reader, randomBytes[:])
_, err := io.ReadFull(cRand.Reader, randomBytes[:])
if err != nil {
fmt.Println("Failed to get randomness for the private key...")
async = false
return
}
priKey, err := crypto2.GenerateKey()
@ -166,7 +205,6 @@ func processNewCommnad() {
storePrivateKey(crypto2.FromECDSA(priKey))
fmt.Printf("New account created with address:{%s}\n", crypto2.PubkeyToAddress(priKey.PublicKey).Hex())
fmt.Printf("Please keep a copy of the private key:{%s}\n", hex.EncodeToString(crypto2.FromECDSA(priKey)))
async = false
}
func processListCommand() {
@ -174,7 +212,6 @@ func processListCommand() {
fmt.Printf("Account %d:{%s}\n", i, crypto2.PubkeyToAddress(key.PublicKey).Hex())
fmt.Printf(" PrivateKey:{%s}\n", hex.EncodeToString(key.D.Bytes()))
}
async = false
}
func processImportCommnad() {
@ -182,7 +219,6 @@ func processImportCommnad() {
priKey := *accountImportPtr
if priKey == "" {
fmt.Println("Error: --privateKey is required")
async = false
return
}
if !accountImportCommand.Parsed() {
@ -194,50 +230,43 @@ func processImportCommnad() {
}
storePrivateKey(priKeyBytes)
fmt.Println("Private key imported...")
async = false
}
func processBalancesCommand() {
balanceCommand.Parse(os.Args[2:])
walletNode := wallet.CreateWalletNode()
if *balanceAddressPtr == "" {
for i, address := range ReadAddresses() {
fmt.Printf("Account %d: %s:\n", i, address.Hex())
for shardID, balanceNonce := range FetchBalance(address, walletNode) {
for shardID, balanceNonce := range FetchBalance(address) {
fmt.Printf(" Balance in Shard %d: %s, nonce: %v \n", shardID, convertBalanceIntoReadableFormat(balanceNonce.balance), balanceNonce.nonce)
}
}
} else {
address := common.HexToAddress(*balanceAddressPtr)
fmt.Printf("Account: %s:\n", address.Hex())
for shardID, balanceNonce := range FetchBalance(address, walletNode) {
for shardID, balanceNonce := range FetchBalance(address) {
fmt.Printf(" Balance in Shard %d: %s, nonce: %v \n", shardID, convertBalanceIntoReadableFormat(balanceNonce.balance), balanceNonce.nonce)
}
}
async = false
}
func processGetFreeToken() {
freeTokenCommand.Parse(os.Args[2:])
walletNode := wallet.CreateWalletNode()
if *freeTokenAddressPtr == "" {
fmt.Println("Error: --address is required")
async = false
return
}
} else {
address := common.HexToAddress(*freeTokenAddressPtr)
GetFreeToken(address, walletNode)
async = false
GetFreeToken(address)
}
}
func processTransferCommand() {
transferCommand.Parse(os.Args[2:])
if !transferCommand.Parsed() {
fmt.Println("Failed to parse flags")
return
}
sender := *transferSenderPtr
receiver := *transferReceiverPtr
@ -249,24 +278,20 @@ func processTransferCommand() {
if err != nil {
fmt.Printf("Cannot base64-decode input data (%s): %s\n",
base64InputData, err)
async = false
return
}
if shardID == -1 {
fmt.Println("Please specify the shard ID for the transfer (e.g. --shardID=0)")
async = false
return
}
if amount <= 0 {
fmt.Println("Please specify positive amount to transfer")
async = false
return
}
priKeys := readPrivateKeys()
if len(priKeys) == 0 {
fmt.Println("No imported account to use.")
async = false
return
}
senderIndex, err := strconv.Atoi(sender)
@ -281,48 +306,45 @@ func processTransferCommand() {
}
if senderIndex == -1 {
fmt.Println("The specified sender account does not exist in the wallet.")
async = false
return
}
}
if senderIndex >= len(priKeys) {
fmt.Println("Sender account index out of bounds.")
async = false
return
}
receiverAddress := common.HexToAddress(receiver)
if len(receiverAddress) != 20 {
fmt.Println("The receiver address is not valid.")
async = false
return
}
// Generate transaction
senderPriKey := priKeys[senderIndex]
senderAddress := addresses[senderIndex]
walletNode := wallet.CreateWalletNode()
shardIDToAccountState := FetchBalance(senderAddress, walletNode)
walletNode := createWalletNode()
shardIDToAccountState := FetchBalance(senderAddress)
state, ok := shardIDToAccountState[uint32(shardID)]
if !ok {
fmt.Printf("Failed connecting to the shard %d\n", shardID)
async = false
return
}
balance := state.balance
balance = balance.Div(balance, big.NewInt(params.GWei))
if amount > float64(balance.Uint64())/params.GWei {
fmt.Printf("Balance is not enough for the transfer, current balance is %.6f\n", float64(balance.Uint64())/params.GWei)
async = false
return
}
amountBigInt := big.NewInt(int64(amount * params.GWei))
amountBigInt = amountBigInt.Mul(amountBigInt, big.NewInt(params.GWei))
tx, _ := types.SignTx(types.NewTransaction(state.nonce, receiverAddress, uint32(shardID), amountBigInt, params.TxGas, nil, inputData), types.HomesteadSigner{}, senderPriKey)
wallet.SubmitTransaction(tx, walletNode, uint32(shardID), stopChan)
submitTransaction(tx, walletNode, uint32(shardID))
}
func convertBalanceIntoReadableFormat(balance *big.Int) string {
@ -366,39 +388,54 @@ func convertBalanceIntoReadableFormat(balance *big.Int) string {
}
// FetchBalance fetches account balance of specified address from the Harmony network
// TODO add support for non beacon chain shards
func FetchBalance(address common.Address, walletNode *node.Node) map[uint32]AccountState {
// TODO: (chao) add support for non beacon chain shards
func FetchBalance(address common.Address) map[uint32]AccountState {
result := make(map[uint32]AccountState)
peers := wallet.GetPeersFromBeaconChain(walletNode)
if len(peers) == 0 {
fmt.Printf("[FATAL] Can't find peers\n")
return nil
}
peer := peers[0]
port, _ := strconv.Atoi(peer.Port)
client := clientService.NewClient(peer.IP, strconv.Itoa(port+node.ClientServicePortDiff))
response := client.GetBalance(address)
balance := big.NewInt(0)
result[0] = AccountState{balance, 0}
for retry := 0; retry < rpcRetry; retry++ {
server := rpcServers[rand.Intn(len(rpcServers))]
client, err := clientService.NewClient(server.IP, server.Port)
if err != nil {
continue
}
log.Debug("FetchBalance", "server", server)
response, err := client.GetBalance(address)
if err != nil {
log.Info("failed to get balance, retrying ...")
continue
}
log.Debug("FetchBalance", "response", response)
balance.SetBytes(response.Balance)
result[0] = AccountState{balance, response.Nonce}
break
}
return result
}
// GetFreeToken requests for token test token on each shard
func GetFreeToken(address common.Address, walletNode *node.Node) {
peers := wallet.GetPeersFromBeaconChain(walletNode)
if len(peers) == 0 {
fmt.Printf("[FATAL] Can't find peers\n")
return
func GetFreeToken(address common.Address) {
for retry := 0; retry < rpcRetry; retry++ {
server := rpcServers[0]
client, err := clientService.NewClient(server.IP, server.Port)
if err != nil {
continue
}
peer := peers[0]
port, _ := strconv.Atoi(peer.Port)
client := clientService.NewClient(peer.IP, strconv.Itoa(port+node.ClientServicePortDiff))
response := client.GetFreeToken(address)
log.Debug("GetFreeToken", "server", server)
response, err := client.GetFreeToken(address)
if err != nil {
log.Info("failed to get free token, retrying ...")
continue
}
log.Debug("GetFreeToken", "response", response)
txID := common.Hash{}
txID.SetBytes(response.TxId)
fmt.Printf("Transaction Id requesting free token in shard %d: %s\n", int(0), txID.Hex())
break
}
}
// ReadAddresses reads the addresses stored in local keystore
@ -439,6 +476,7 @@ func storePrivateKey(priKey []byte) {
// clearKeystore deletes all data in the local keystore
func clearKeystore() {
ioutil.WriteFile("keystore", []byte{}, 0644)
fmt.Println("All existing accounts deleted...")
}
// readPrivateKeys reads all the private key stored in local keystore
@ -458,3 +496,18 @@ func readPrivateKeys() []*ecdsa.PrivateKey {
}
return priKeys
}
// submitTransaction submits the transaction to the Harmony network
func submitTransaction(tx *types.Transaction, walletNode *node.Node, shardID uint32) error {
msg := proto_node.ConstructTransactionListMessageAccount(types.Transactions{tx})
err := walletNode.GetHost().SendMessageToGroups([]p2p.GroupID{p2p.GroupIDBeaconClient}, p2p_host.ConstructP2pMessage(byte(0), msg))
if err != nil {
fmt.Printf("Error in SubmitTransaction: %v\n", err)
return err
}
fmt.Printf("Transaction Id for shard %d: %s\n", int(shardID), tx.Hash().Hex())
// FIXME (leo): how to we know the tx was successful sent to the network
// this is a hacky way to wait for sometime
time.Sleep(2 * time.Second)
return nil
}

85
internal/wallet/wallet/lib.go
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@ -1,85 +0,0 @@
package wallet
import (
"fmt"
"time"
"github.com/harmony-one/harmony/api/client"
proto_node "github.com/harmony-one/harmony/api/proto/node"
"github.com/harmony-one/harmony/core/types"
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
"github.com/harmony-one/harmony/internal/utils"
"github.com/harmony-one/harmony/node"
"github.com/harmony-one/harmony/p2p"
p2p_host "github.com/harmony-one/harmony/p2p/host"
"github.com/harmony-one/harmony/p2p/p2pimpl"
ma "github.com/multiformats/go-multiaddr"
)
// CreateWalletNode creates wallet server node.
func CreateWalletNode() *node.Node {
utils.BootNodes = getBootNodes()
shardIDs := []uint32{0}
// dummy host for wallet
self := p2p.Peer{IP: "127.0.0.1", Port: "6999"}
priKey, _, _ := utils.GenKeyP2P("127.0.0.1", "6999")
host, err := p2pimpl.NewHost(&self, priKey)
if err != nil {
panic(err)
}
walletNode := node.New(host, nil, nil)
walletNode.Client = client.NewClient(walletNode.GetHost(), shardIDs)
walletNode.NodeConfig.SetRole(nodeconfig.ClientNode)
walletNode.ServiceManagerSetup()
walletNode.RunServices()
// wait for networkinfo/discovery service to start fully
// FIXME (leo): use async mode or channel to communicate
time.Sleep(2 * time.Second)
return walletNode
}
// GetPeersFromBeaconChain get peers from beacon chain
// TODO: add support for normal shards
func GetPeersFromBeaconChain(walletNode *node.Node) []p2p.Peer {
peers := []p2p.Peer{}
// wait until we got beacon peer
// FIXME (chao): use async channel for communiation
time.Sleep(4 * time.Second)
walletNode.BeaconNeighbors.Range(func(k, v interface{}) bool {
peers = append(peers, v.(p2p.Peer))
return true
})
utils.GetLogInstance().Debug("GetPeersFromBeaconChain", "peers:", peers)
return peers
}
// SubmitTransaction submits the transaction to the Harmony network
func SubmitTransaction(tx *types.Transaction, walletNode *node.Node, shardID uint32, stopChan chan struct{}) error {
msg := proto_node.ConstructTransactionListMessageAccount(types.Transactions{tx})
err := walletNode.GetHost().SendMessageToGroups([]p2p.GroupID{p2p.GroupIDBeaconClient}, p2p_host.ConstructP2pMessage(byte(0), msg))
if err != nil {
fmt.Printf("Error in SubmitTransaction: %v\n", err)
return err
}
fmt.Printf("Transaction Id for shard %d: %s\n", int(shardID), tx.Hash().Hex())
// FIXME (leo): how to we know the tx was successful sent to the network
// this is a hacky way to wait for sometime
time.Sleep(2 * time.Second)
if stopChan != nil {
stopChan <- struct{}{}
}
return nil
}
func getBootNodes() []ma.Multiaddr {
// These are the bootnodes of banjo testnet
addrStrings := []string{"/ip4/100.26.90.187/tcp/9876/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9", "/ip4/54.213.43.194/tcp/9876/p2p/QmQayinFSgMMw5cSpDUiD9pQ2WeP6WNmGxpZ6ou3mdVFJX"}
bootNodeAddrs, err := utils.StringsToAddrs(addrStrings)
if err != nil {
panic(err)
}
return bootNodeAddrs
}

47
internal/wallet/wallet/lib_test.go
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@ -1,47 +0,0 @@
package wallet
import (
"testing"
"time"
"github.com/golang/mock/gomock"
"github.com/harmony-one/harmony/api/client"
proto_node "github.com/harmony-one/harmony/api/proto/node"
"github.com/harmony-one/harmony/api/service/networkinfo"
"github.com/harmony-one/harmony/core/types"
"github.com/harmony-one/harmony/node"
"github.com/harmony-one/harmony/p2p"
p2p_host "github.com/harmony-one/harmony/p2p/host"
mock_host "github.com/harmony-one/harmony/p2p/host/mock"
)
func TestCreateWalletNode(test *testing.T) {
// shorten the retry time
networkinfo.ConnectionRetry = 3
walletNode := CreateWalletNode()
if walletNode.Client == nil {
test.Errorf("Wallet node's client is not initialized")
}
}
func TestSubmitTransaction(test *testing.T) {
ctrl := gomock.NewController(test)
defer ctrl.Finish()
m := mock_host.NewMockHost(ctrl)
m.EXPECT().GetSelfPeer().AnyTimes()
walletNode := node.New(m, nil, nil)
walletNode.Client = client.NewClient(walletNode.GetHost(), []uint32{0})
tx := &types.Transaction{}
msg := proto_node.ConstructTransactionListMessageAccount(types.Transactions{tx})
m.EXPECT().SendMessageToGroups([]p2p.GroupID{p2p.GroupIDBeaconClient}, p2p_host.ConstructP2pMessage(byte(0), msg))
SubmitTransaction(tx, walletNode, 0, nil)
time.Sleep(1 * time.Second)
}
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