0g-chain/tests/e2e/testutil/account.go

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package testutil
import (
"context"
"encoding/hex"
"errors"
"fmt"
"log"
"os"
"time"
"github.com/cosmos/cosmos-sdk/crypto/hd"
sdk "github.com/cosmos/cosmos-sdk/types"
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
"github.com/cosmos/go-bip39"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/stretchr/testify/require"
"github.com/tharsis/ethermint/crypto/ethsecp256k1"
emtypes "github.com/tharsis/ethermint/types"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/tests/util"
)
var ErrBroadcastTimeout = errors.New("timed out waiting for tx to be committed to block")
type SigningAccount struct {
name string
mnemonic string
evmSigner *util.EvmSigner
evmReqChan chan<- util.EvmTxRequest
evmResChan <-chan util.EvmTxResponse
kavaSigner *util.KavaSigner
sdkReqChan chan<- util.KavaMsgRequest
sdkResChan <-chan util.KavaMsgResponse
EvmAddress common.Address
SdkAddress sdk.AccAddress
l *log.Logger
}
// GetAccount returns the account with the given name or fails.
func (chain *Chain) GetAccount(name string) *SigningAccount {
acc, found := chain.accounts[name]
if !found {
chain.t.Fatalf("failed to find account with name %s", name)
}
return acc
}
// AddNewSigningAccount sets up a new account with a signer for SDK and EVM transactions.
func (chain *Chain) AddNewSigningAccount(name string, hdPath *hd.BIP44Params, chainId, mnemonic string) *SigningAccount {
if _, found := chain.accounts[name]; found {
chain.t.Fatalf("account with name %s already exists", name)
}
// Kava signing account for SDK side
privKeyBytes, err := hd.Secp256k1.Derive()(mnemonic, "", hdPath.String())
require.NoErrorf(chain.t, err, "failed to derive private key from mnemonic for %s: %s", name, err)
privKey := &ethsecp256k1.PrivKey{Key: privKeyBytes}
kavaSigner := util.NewKavaSigner(
chainId,
chain.encodingConfig,
chain.Auth,
chain.Tx,
privKey,
100,
)
sdkReqChan := make(chan util.KavaMsgRequest)
sdkResChan, err := kavaSigner.Run(sdkReqChan)
require.NoErrorf(chain.t, err, "failed to start signer for account %s: %s", name, err)
// Kava signing account for EVM side
evmChainId, err := emtypes.ParseChainID(chainId)
require.NoErrorf(chain.t, err, "unable to parse ethermint-compatible chain id from %s", chainId)
ecdsaPrivKey, err := crypto.HexToECDSA(hex.EncodeToString(privKeyBytes))
require.NoError(chain.t, err, "failed to generate ECDSA private key from bytes")
evmSigner, err := util.NewEvmSigner(
chain.EvmClient,
ecdsaPrivKey,
evmChainId,
)
require.NoErrorf(chain.t, err, "failed to create evm signer")
evmReqChan := make(chan util.EvmTxRequest)
evmResChan := evmSigner.Run(evmReqChan)
logger := log.New(os.Stdout, fmt.Sprintf("[%s] ", name), log.LstdFlags)
chain.accounts[name] = &SigningAccount{
name: name,
mnemonic: mnemonic,
l: logger,
evmSigner: evmSigner,
evmReqChan: evmReqChan,
evmResChan: evmResChan,
kavaSigner: kavaSigner,
sdkReqChan: sdkReqChan,
sdkResChan: sdkResChan,
EvmAddress: evmSigner.Address(),
SdkAddress: kavaSigner.Address(),
}
return chain.accounts[name]
}
// SignAndBroadcastKavaTx sends a request to the signer and awaits its response.
func (a *SigningAccount) SignAndBroadcastKavaTx(req util.KavaMsgRequest) util.KavaMsgResponse {
a.l.Printf("broadcasting sdk tx. has data = %+v\n", req.Data)
// send the request to signer
a.sdkReqChan <- req
// TODO: timeout awaiting the response.
// block and await response
// response is not returned until the msg is committed to a block
res := <-a.sdkResChan
// error will be set if response is not Code 0 (success) or Code 19 (already in mempool)
if res.Err != nil {
a.l.Printf("response code: %d error: %s\n", res.Result.Code, res.Result.RawLog)
} else {
a.l.Printf("response code: %d, hash %s\n", res.Result.Code, res.Result.TxHash)
}
return res
}
// EvmTxResponse is util.EvmTxResponse that also includes the Receipt, if available
type EvmTxResponse struct {
util.EvmTxResponse
Receipt *ethtypes.Receipt
}
// SignAndBroadcastEvmTx sends a request to the signer and awaits its response.
func (a *SigningAccount) SignAndBroadcastEvmTx(req util.EvmTxRequest) EvmTxResponse {
a.l.Printf("broadcasting evm tx %+v\n", req.Data)
// send the request to signer
a.evmReqChan <- req
// block and await response
// response occurs once tx is submitted to pending tx pool.
// poll for the receipt to wait for it to be included in a block
res := <-a.evmResChan
response := EvmTxResponse{
EvmTxResponse: res,
}
// if failed during signing or broadcast, there will never be a receipt.
if res.Err != nil {
return response
}
// if we don't have a tx receipt within a given timeout, fail the request
timeout := time.After(10 * time.Second)
for {
select {
case <-timeout:
response.Err = ErrBroadcastTimeout
default:
response.Receipt, response.Err = a.evmSigner.EvmClient.TransactionReceipt(context.Background(), res.TxHash)
if errors.Is(response.Err, ethereum.NotFound) {
// tx still not committed to a block. retry!
time.Sleep(100 * time.Millisecond)
continue
}
}
break
}
return response
}
// NewFundedAccount creates a SigningAccount for a random account & funds the account from the whale.
func (chain *Chain) NewFundedAccount(name string, funds sdk.Coins) *SigningAccount {
entropy, err := bip39.NewEntropy(128)
require.NoErrorf(chain.t, err, "failed to generate entropy for account %s: %s", name, err)
mnemonic, err := bip39.NewMnemonic(entropy)
require.NoErrorf(chain.t, err, "failed to create new mnemonic for account %s: %s", name, err)
acc := chain.AddNewSigningAccount(
name,
hd.CreateHDPath(app.Bip44CoinType, 0, 0),
chain.ChainId,
mnemonic,
)
// don't attempt to fund when no funds are desired
if funds.IsZero() {
return acc
}
whale := chain.GetAccount(FundedAccountName)
whale.l.Printf("attempting to fund created account (%s=%s)\n", name, acc.SdkAddress.String())
res := whale.SignAndBroadcastKavaTx(
util.KavaMsgRequest{
Msgs: []sdk.Msg{
banktypes.NewMsgSend(whale.SdkAddress, acc.SdkAddress, funds),
},
GasLimit: 2e5,
FeeAmount: sdk.NewCoins(sdk.NewCoin(chain.StakingDenom, sdk.NewInt(75000))),
Data: fmt.Sprintf("initial funding of account %s", name),
},
)
require.NoErrorf(chain.t, res.Err, "failed to fund new account %s: %s", name, res.Err)
whale.l.Printf("successfully funded [%s]\n", name)
return acc
}