cerc-io/laconicd-deprecated
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chore(rpc): restructure JSON-RPC APIs (#1218)

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* move non api methods from eth/api.go to evm_backend: ClientCtx, QueryClient, Ctx, getBlockNumber, getTransactionByBlockAndIndex, doCall

* organize eth/api.go into sections and move backend logic to dedicated files

* remove unnecesary comment

* move resend to the backend

* refractor eth api

* refractor debug namespace

* refactor miner namespace

* refactor personal namespace

* update transactionReceipt from upstream

* update getBlockByNumber from upstream

* update getBalance from upstream

* update getProof from upstream

* update getBalance from upstream

* fix linter

* remove duplicated import

* remove duplicated import

* fix backend tests

* fix lint

* fix duplicated imports

* fix linter

* reorganize blocks

* backend folder refractor

* remove unnecessary file

* remove duplicate import

Co-authored-by: Freddy Caceres <facs95@gmail.com>
This commit is contained in:
Daniel Burckhardt 2022-08-09 07:52:28 +02:00 committed by GitHub
parent d1543ce678
commit e70d8fcb56
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 2891 additions and 2559 deletions
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10
rpc/apis.go
View File

@ -19,7 +19,6 @@ import (
"github.com/evmos/ethermint/rpc/namespaces/ethereum/personal"
"github.com/evmos/ethermint/rpc/namespaces/ethereum/txpool"
"github.com/evmos/ethermint/rpc/namespaces/ethereum/web3"
"github.com/evmos/ethermint/rpc/types"
rpcclient "github.com/tendermint/tendermint/rpc/jsonrpc/client"
)
@ -57,13 +56,12 @@ var apiCreators map[string]APICreator
func init() {
apiCreators = map[string]APICreator{
EthNamespace: func(ctx *server.Context, clientCtx client.Context, tmWSClient *rpcclient.WSClient, allowUnprotectedTxs bool) []rpc.API {
nonceLock := new(types.AddrLocker)
evmBackend := backend.NewBackend(ctx, ctx.Logger, clientCtx, allowUnprotectedTxs)
return []rpc.API{
{
Namespace: EthNamespace,
Version: apiVersion,
Service: eth.NewPublicAPI(ctx.Logger, clientCtx, evmBackend, nonceLock),
Service: eth.NewPublicAPI(ctx.Logger, evmBackend),
Public: true,
},
{
@ -100,7 +98,7 @@ func init() {
{
Namespace: PersonalNamespace,
Version: apiVersion,
Service: personal.NewAPI(ctx.Logger, clientCtx, evmBackend),
Service: personal.NewAPI(ctx.Logger, evmBackend),
Public: false,
},
}
@ -121,7 +119,7 @@ func init() {
{
Namespace: DebugNamespace,
Version: apiVersion,
Service: debug.NewAPI(ctx, evmBackend, clientCtx),
Service: debug.NewAPI(ctx, evmBackend),
Public: true,
},
}
@ -132,7 +130,7 @@ func init() {
{
Namespace: MinerNamespace,
Version: apiVersion,
Service: miner.NewPrivateAPI(ctx, clientCtx, evmBackend),
Service: miner.NewPrivateAPI(ctx, evmBackend),
Public: false,
},
}

207
rpc/backend/account_info.go Normal file
View File

@ -0,0 +1,207 @@
package backend
import (
"fmt"
"math"
"math/big"
sdkmath "cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
rpctypes "github.com/evmos/ethermint/rpc/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
)
// GetCode returns the contract code at the given address and block number.
func (b *Backend) GetCode(address common.Address, blockNrOrHash rpctypes.BlockNumberOrHash) (hexutil.Bytes, error) {
blockNum, err := b.GetBlockNumber(blockNrOrHash)
if err != nil {
return nil, err
}
req := &evmtypes.QueryCodeRequest{
Address: address.String(),
}
res, err := b.queryClient.Code(rpctypes.ContextWithHeight(blockNum.Int64()), req)
if err != nil {
return nil, err
}
return res.Code, nil
}
// GetProof returns an account object with proof and any storage proofs
func (b *Backend) GetProof(address common.Address, storageKeys []string, blockNrOrHash rpctypes.BlockNumberOrHash) (*rpctypes.AccountResult, error) {
blockNum, err := b.GetBlockNumber(blockNrOrHash)
if err != nil {
return nil, err
}
height := blockNum.Int64()
_, err = b.GetTendermintBlockByNumber(blockNum)
if err != nil {
// Get 'latest' proof if query is in the future
// this imitates geth behavior
height = 0
}
ctx := rpctypes.ContextWithHeight(height)
// if the height is equal to zero, meaning the query condition of the block is either "pending" or "latest"
if height == 0 {
bn, err := b.BlockNumber()
if err != nil {
return nil, err
}
if bn > math.MaxInt64 {
return nil, fmt.Errorf("not able to query block number greater than MaxInt64")
}
height = int64(bn)
}
clientCtx := b.clientCtx.WithHeight(height)
// query storage proofs
storageProofs := make([]rpctypes.StorageResult, len(storageKeys))
for i, key := range storageKeys {
hexKey := common.HexToHash(key)
valueBz, proof, err := b.queryClient.GetProof(clientCtx, evmtypes.StoreKey, evmtypes.StateKey(address, hexKey.Bytes()))
if err != nil {
return nil, err
}
// check for proof
var proofStr string
if proof != nil {
proofStr = proof.String()
}
storageProofs[i] = rpctypes.StorageResult{
Key: key,
Value: (*hexutil.Big)(new(big.Int).SetBytes(valueBz)),
Proof: []string{proofStr},
}
}
// query EVM account
req := &evmtypes.QueryAccountRequest{
Address: address.String(),
}
res, err := b.queryClient.Account(ctx, req)
if err != nil {
return nil, err
}
// query account proofs
accountKey := authtypes.AddressStoreKey(sdk.AccAddress(address.Bytes()))
_, proof, err := b.queryClient.GetProof(clientCtx, authtypes.StoreKey, accountKey)
if err != nil {
return nil, err
}
// check for proof
var accProofStr string
if proof != nil {
accProofStr = proof.String()
}
balance, ok := sdkmath.NewIntFromString(res.Balance)
if !ok {
return nil, errors.New("invalid balance")
}
return &rpctypes.AccountResult{
Address: address,
AccountProof: []string{accProofStr},
Balance: (*hexutil.Big)(balance.BigInt()),
CodeHash: common.HexToHash(res.CodeHash),
Nonce: hexutil.Uint64(res.Nonce),
StorageHash: common.Hash{}, // NOTE: Ethermint doesn't have a storage hash. TODO: implement?
StorageProof: storageProofs,
}, nil
}
// GetStorageAt returns the contract storage at the given address, block number, and key.
func (b *Backend) GetStorageAt(address common.Address, key string, blockNrOrHash rpctypes.BlockNumberOrHash) (hexutil.Bytes, error) {
blockNum, err := b.GetBlockNumber(blockNrOrHash)
if err != nil {
return nil, err
}
req := &evmtypes.QueryStorageRequest{
Address: address.String(),
Key: key,
}
res, err := b.queryClient.Storage(rpctypes.ContextWithHeight(blockNum.Int64()), req)
if err != nil {
return nil, err
}
value := common.HexToHash(res.Value)
return value.Bytes(), nil
}
// GetBalance returns the provided account's balance up to the provided block number.
func (b *Backend) GetBalance(address common.Address, blockNrOrHash rpctypes.BlockNumberOrHash) (*hexutil.Big, error) {
blockNum, err := b.GetBlockNumber(blockNrOrHash)
if err != nil {
return nil, err
}
req := &evmtypes.QueryBalanceRequest{
Address: address.String(),
}
_, err = b.GetTendermintBlockByNumber(blockNum)
if err != nil {
return nil, err
}
res, err := b.queryClient.Balance(rpctypes.ContextWithHeight(blockNum.Int64()), req)
if err != nil {
return nil, err
}
val, ok := sdkmath.NewIntFromString(res.Balance)
if !ok {
return nil, errors.New("invalid balance")
}
// balance can only be negative in case of pruned node
if val.IsNegative() {
return nil, errors.New("couldn't fetch balance. Node state is pruned")
}
return (*hexutil.Big)(val.BigInt()), nil
}
// GetTransactionCount returns the number of transactions at the given address up to the given block number.
func (b *Backend) GetTransactionCount(address common.Address, blockNum rpctypes.BlockNumber) (*hexutil.Uint64, error) {
// Get nonce (sequence) from account
from := sdk.AccAddress(address.Bytes())
accRet := b.clientCtx.AccountRetriever
err := accRet.EnsureExists(b.clientCtx, from)
if err != nil {
// account doesn't exist yet, return 0
n := hexutil.Uint64(0)
return &n, nil
}
includePending := blockNum == rpctypes.EthPendingBlockNumber
nonce, err := b.getAccountNonce(address, includePending, blockNum.Int64(), b.logger)
if err != nil {
return nil, err
}
n := hexutil.Uint64(nonce)
return &n, nil
}

113
rpc/backend/backend.go
View File

@ -6,6 +6,8 @@ import (
"time"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
"github.com/cosmos/cosmos-sdk/server"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
@ -13,10 +15,13 @@ import (
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
"github.com/evmos/ethermint/rpc/types"
"github.com/ethereum/go-ethereum/signer/core/apitypes"
"github.com/evmos/ethermint/crypto/hd"
rpctypes "github.com/evmos/ethermint/rpc/types"
"github.com/evmos/ethermint/server/config"
ethermint "github.com/evmos/ethermint/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/spf13/viper"
"github.com/tendermint/tendermint/libs/log"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
)
@ -40,58 +45,97 @@ type CosmosBackend interface { // TODO: define
// as defined by EIP-1474: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1474.md
// Implemented by Backend.
type EVMBackend interface {
// General Ethereum API
// Node specific queries
Accounts() ([]common.Address, error)
Syncing() (interface{}, error)
SetEtherbase(etherbase common.Address) bool
ImportRawKey(privkey, password string) (common.Address, error)
ListAccounts() ([]common.Address, error)
NewMnemonic(uid string, language keyring.Language, hdPath, bip39Passphrase string, algo keyring.SignatureAlgo) (*keyring.Record, error)
UnprotectedAllowed() bool
RPCGasCap() uint64 // global gas cap for eth_call over rpc: DoS protection
RPCEVMTimeout() time.Duration // global timeout for eth_call over rpc: DoS protection
RPCTxFeeCap() float64 // RPCTxFeeCap is the global transaction fee(price * gaslimit) cap for send-transaction variants. The unit is ether.
UnprotectedAllowed() bool
RPCMinGasPrice() int64
SuggestGasTipCap(baseFee *big.Int) (*big.Int, error)
// Blockchain API
// Sign Tx
Sign(address common.Address, data hexutil.Bytes) (hexutil.Bytes, error)
SendTransaction(args evmtypes.TransactionArgs) (common.Hash, error)
SignTypedData(address common.Address, typedData apitypes.TypedData) (hexutil.Bytes, error)
// Blocks Info
BlockNumber() (hexutil.Uint64, error)
GetBlockByNumber(blockNum types.BlockNumber, fullTx bool) (map[string]interface{}, error)
GetTendermintBlockByNumber(blockNum types.BlockNumber) (*tmrpctypes.ResultBlock, error)
GetBlockByNumber(blockNum rpctypes.BlockNumber, fullTx bool) (map[string]interface{}, error)
GetTendermintBlockByNumber(blockNum rpctypes.BlockNumber) (*tmrpctypes.ResultBlock, error)
GetTendermintBlockResultByNumber(height *int64) (*tmrpctypes.ResultBlockResults, error)
GetTendermintBlockByHash(blockHash common.Hash) (*tmrpctypes.ResultBlock, error)
GetBlockByHash(hash common.Hash, fullTx bool) (map[string]interface{}, error)
BlockByNumber(blockNum types.BlockNumber) (*ethtypes.Block, error)
BlockByNumber(blockNum rpctypes.BlockNumber) (*ethtypes.Block, error)
BlockByHash(blockHash common.Hash) (*ethtypes.Block, error)
CurrentHeader() *ethtypes.Header
HeaderByNumber(blockNum types.BlockNumber) (*ethtypes.Header, error)
HeaderByHash(blockHash common.Hash) (*ethtypes.Header, error)
GetBlockNumberByHash(blockHash common.Hash) (*big.Int, error)
GetBlockNumber(blockNrOrHash rpctypes.BlockNumberOrHash) (rpctypes.BlockNumber, error)
GetBlockTransactionCountByHash(hash common.Hash) *hexutil.Uint
GetBlockTransactionCountByNumber(blockNum rpctypes.BlockNumber) *hexutil.Uint
BlockBloom(blockRes *tmrpctypes.ResultBlockResults) (ethtypes.Bloom, error)
GetEthereumMsgsFromTendermintBlock(block *tmrpctypes.ResultBlock, blockRes *tmrpctypes.ResultBlockResults) []*evmtypes.MsgEthereumTx
HeaderByNumber(blockNum rpctypes.BlockNumber) (*ethtypes.Header, error)
HeaderByHash(blockHash common.Hash) (*ethtypes.Header, error)
EthBlockFromTendermint(resBlock *tmrpctypes.ResultBlock, blockRes *tmrpctypes.ResultBlockResults, fullTx bool) (map[string]interface{}, error)
EthBlockFromTm(resBlock *tmrpctypes.ResultBlock, blockRes *tmrpctypes.ResultBlockResults) (*ethtypes.Block, error)
// Account Info
GetCode(address common.Address, blockNrOrHash rpctypes.BlockNumberOrHash) (hexutil.Bytes, error)
GetBalance(address common.Address, blockNrOrHash rpctypes.BlockNumberOrHash) (*hexutil.Big, error)
GetStorageAt(address common.Address, key string, blockNrOrHash rpctypes.BlockNumberOrHash) (hexutil.Bytes, error)
GetProof(address common.Address, storageKeys []string, blockNrOrHash rpctypes.BlockNumberOrHash) (*rpctypes.AccountResult, error)
GetTransactionCount(address common.Address, blockNum rpctypes.BlockNumber) (*hexutil.Uint64, error)
// Chain Info
ChainID() (*hexutil.Big, error)
ChainConfig() *params.ChainConfig
GlobalMinGasPrice() (sdk.Dec, error)
BaseFee(blockRes *tmrpctypes.ResultBlockResults) (*big.Int, error)
CurrentHeader() *ethtypes.Header
PendingTransactions() ([]*sdk.Tx, error)
GetTransactionCount(address common.Address, blockNum types.BlockNumber) (*hexutil.Uint64, error)
SendTransaction(args evmtypes.TransactionArgs) (common.Hash, error)
GetCoinbase() (sdk.AccAddress, error)
GetTransactionByHash(txHash common.Hash) (*types.RPCTransaction, error)
FeeHistory(blockCount rpc.DecimalOrHex, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*rpctypes.FeeHistoryResult, error)
SuggestGasTipCap(baseFee *big.Int) (*big.Int, error)
// Tx Info
GetTransactionByHash(txHash common.Hash) (*rpctypes.RPCTransaction, error)
GetTxByEthHash(txHash common.Hash) (*tmrpctypes.ResultTx, error)
GetTxByTxIndex(height int64, txIndex uint) (*tmrpctypes.ResultTx, error)
EstimateGas(args evmtypes.TransactionArgs, blockNrOptional *types.BlockNumber) (hexutil.Uint64, error)
BaseFee(blockRes *tmrpctypes.ResultBlockResults) (*big.Int, error)
GlobalMinGasPrice() (sdk.Dec, error)
GetTransactionByBlockAndIndex(block *tmrpctypes.ResultBlock, idx hexutil.Uint) (*rpctypes.RPCTransaction, error)
GetTransactionReceipt(hash common.Hash) (map[string]interface{}, error)
GetTransactionByBlockHashAndIndex(hash common.Hash, idx hexutil.Uint) (*rpctypes.RPCTransaction, error)
GetTransactionByBlockNumberAndIndex(blockNum rpctypes.BlockNumber, idx hexutil.Uint) (*rpctypes.RPCTransaction, error)
// Fee API
FeeHistory(blockCount rpc.DecimalOrHex, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*types.FeeHistoryResult, error)
// Send Transaction
Resend(args evmtypes.TransactionArgs, gasPrice *hexutil.Big, gasLimit *hexutil.Uint64) (common.Hash, error)
SendRawTransaction(data hexutil.Bytes) (common.Hash, error)
SetTxDefaults(args evmtypes.TransactionArgs) (evmtypes.TransactionArgs, error)
EstimateGas(args evmtypes.TransactionArgs, blockNrOptional *rpctypes.BlockNumber) (hexutil.Uint64, error)
DoCall(args evmtypes.TransactionArgs, blockNr rpctypes.BlockNumber) (*evmtypes.MsgEthereumTxResponse, error)
// Filter API
BloomStatus() (uint64, uint64)
GetLogs(hash common.Hash) ([][]*ethtypes.Log, error)
GetLogsByHeight(height *int64) ([][]*ethtypes.Log, error)
ChainConfig() *params.ChainConfig
SetTxDefaults(args evmtypes.TransactionArgs) (evmtypes.TransactionArgs, error)
GetEthereumMsgsFromTendermintBlock(block *tmrpctypes.ResultBlock, blockRes *tmrpctypes.ResultBlockResults) []*evmtypes.MsgEthereumTx
BloomStatus() (uint64, uint64)
// Tracing
TraceTransaction(hash common.Hash, config *evmtypes.TraceConfig) (interface{}, error)
TraceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfig, block *tmrpctypes.ResultBlock) ([]*evmtypes.TxTraceResult, error)
}
var _ BackendI = (*Backend)(nil)
var bAttributeKeyEthereumBloom = []byte(evmtypes.AttributeKeyEthereumBloom)
// Backend implements the BackendI interface
type Backend struct {
ctx context.Context
clientCtx client.Context
queryClient *types.QueryClient // gRPC query client
queryClient *rpctypes.QueryClient // gRPC query client
logger log.Logger
chainID *big.Int
cfg config.Config
@ -107,10 +151,27 @@ func NewBackend(ctx *server.Context, logger log.Logger, clientCtx client.Context
appConf := config.GetConfig(ctx.Viper)
algos, _ := clientCtx.Keyring.SupportedAlgorithms()
if !algos.Contains(hd.EthSecp256k1) {
kr, err := keyring.New(
sdk.KeyringServiceName(),
viper.GetString(flags.FlagKeyringBackend),
clientCtx.KeyringDir,
clientCtx.Input,
clientCtx.Codec,
hd.EthSecp256k1Option(),
)
if err != nil {
panic(err)
}
clientCtx = clientCtx.WithKeyring(kr)
}
return &Backend{
ctx: context.Background(),
clientCtx: clientCtx,
queryClient: types.NewQueryClient(clientCtx),
queryClient: rpctypes.NewQueryClient(clientCtx),
logger: logger.With("module", "backend"),
chainID: chainID,
cfg: appConf,

33
rpc/backend/backend_suite_test.go
View File

@ -1,10 +1,15 @@
package backend
import (
"bufio"
"fmt"
"math/big"
"os"
"path/filepath"
"testing"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
"github.com/cosmos/cosmos-sdk/server"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
@ -13,10 +18,10 @@ import (
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
"github.com/evmos/ethermint/app"
"github.com/evmos/ethermint/crypto/hd"
"github.com/evmos/ethermint/encoding"
"github.com/evmos/ethermint/rpc/backend/mocks"
ethrpc "github.com/evmos/ethermint/rpc/types"
rpc "github.com/evmos/ethermint/rpc/types"
rpctypes "github.com/evmos/ethermint/rpc/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
)
@ -34,17 +39,27 @@ func (suite *BackendTestSuite) SetupTest() {
ctx := server.NewDefaultContext()
ctx.Viper.Set("telemetry.global-labels", []interface{}{})
baseDir := suite.T().TempDir()
nodeDirName := fmt.Sprintf("node")
clientDir := filepath.Join(baseDir, nodeDirName, "evmoscli")
keyRing, err := suite.generateTestKeyring(clientDir)
if err != nil {
panic(err)
}
encodingConfig := encoding.MakeConfig(app.ModuleBasics)
clientCtx := client.Context{}.WithChainID("ethermint_9000-1").
WithHeight(1).
WithTxConfig(encodingConfig.TxConfig)
WithTxConfig(encodingConfig.TxConfig).
WithKeyringDir(clientDir).
WithKeyring(keyRing)
allowUnprotectedTxs := false
suite.backend = NewBackend(ctx, ctx.Logger, clientCtx, allowUnprotectedTxs)
suite.backend.queryClient.QueryClient = mocks.NewQueryClient(suite.T())
suite.backend.clientCtx.Client = mocks.NewClient(suite.T())
suite.backend.ctx = rpc.ContextWithHeight(1)
suite.backend.ctx = rpctypes.ContextWithHeight(1)
}
// buildEthereumTx returns an example legacy Ethereum transaction
@ -94,7 +109,7 @@ func (suite *BackendTestSuite) buildFormattedBlock(
ethRPCTxs := []interface{}{}
if tx != nil {
if fullTx {
rpcTx, err := ethrpc.NewRPCTransaction(
rpcTx, err := rpctypes.NewRPCTransaction(
tx.AsTransaction(),
common.BytesToHash(header.Hash()),
uint64(header.Height),
@ -108,7 +123,7 @@ func (suite *BackendTestSuite) buildFormattedBlock(
}
}
return ethrpc.FormatBlock(
return rpctypes.FormatBlock(
header,
resBlock.Block.Size(),
gasLimit,
@ -119,3 +134,9 @@ func (suite *BackendTestSuite) buildFormattedBlock(
baseFee,
)
}
func (suite *BackendTestSuite) generateTestKeyring(clientDir string) (keyring.Keyring, error) {
buf := bufio.NewReader(os.Stdin)
encCfg := encoding.MakeConfig(app.ModuleBasics)
return keyring.New(sdk.KeyringServiceName(), keyring.BackendTest, clientDir, buf, encCfg.Codec, []keyring.Option{hd.EthSecp256k1Option()}...)
}

512
rpc/backend/blocks_info.go Normal file
View File

@ -0,0 +1,512 @@
package backend
import (
"bytes"
"fmt"
"math/big"
"strconv"
sdk "github.com/cosmos/cosmos-sdk/types"
grpctypes "github.com/cosmos/cosmos-sdk/types/grpc"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethtypes "github.com/ethereum/go-ethereum/core/types"
rpctypes "github.com/evmos/ethermint/rpc/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
)
// Getting Blocks
//
// Retrieves information from a particular block in the blockchain.
// BlockNumber() (hexutil.Uint64, error)
// GetBlockByNumber(ethBlockNum rpctypes.BlockNumber, fullTx bool) (map[string]interface{}, error)
// GetBlockByHash(hash common.Hash, fullTx bool) (map[string]interface{}, error)
// BlockNumber returns the current block number in abci app state.
// Because abci app state could lag behind from tendermint latest block, it's more stable
// for the client to use the latest block number in abci app state than tendermint rpc.
func (b *Backend) BlockNumber() (hexutil.Uint64, error) {
// do any grpc query, ignore the response and use the returned block height
var header metadata.MD
_, err := b.queryClient.Params(b.ctx, &evmtypes.QueryParamsRequest{}, grpc.Header(&header))
if err != nil {
return hexutil.Uint64(0), err
}
blockHeightHeader := header.Get(grpctypes.GRPCBlockHeightHeader)
if headerLen := len(blockHeightHeader); headerLen != 1 {
return 0, fmt.Errorf("unexpected '%s' gRPC header length; got %d, expected: %d", grpctypes.GRPCBlockHeightHeader, headerLen, 1)
}
height, err := strconv.ParseUint(blockHeightHeader[0], 10, 64)
if err != nil {
return 0, fmt.Errorf("failed to parse block height: %w", err)
}
return hexutil.Uint64(height), nil
}
// GetBlockByNumber returns the block identified by number.
func (b *Backend) GetBlockByNumber(blockNum rpctypes.BlockNumber, fullTx bool) (map[string]interface{}, error) {
resBlock, err := b.GetTendermintBlockByNumber(blockNum)
if err != nil {
return nil, nil
}
// return if requested block height is greater than the current one
if resBlock == nil || resBlock.Block == nil {
return nil, nil
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
b.logger.Debug("failed to fetch block result from Tendermint", "height", blockNum, "error", err.Error())
return nil, nil
}
res, err := b.EthBlockFromTendermint(resBlock, blockRes, fullTx)
if err != nil {
b.logger.Debug("EthBlockFromTendermint failed", "height", blockNum, "error", err.Error())
return nil, err
}
return res, nil
}
// GetBlockByHash returns the block identified by hash.
func (b *Backend) GetBlockByHash(hash common.Hash, fullTx bool) (map[string]interface{}, error) {
resBlock, err := b.GetTendermintBlockByHash(hash)
if err != nil {
return nil, err
}
if resBlock == nil {
// block not found
return nil, nil
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
b.logger.Debug("failed to fetch block result from Tendermint", "block-hash", hash.String(), "error", err.Error())
return nil, nil
}
res, err := b.EthBlockFromTendermint(resBlock, blockRes, fullTx)
if err != nil {
b.logger.Debug("EthBlockFromTendermint failed", "hash", hash, "error", err.Error())
return nil, err
}
return res, nil
}
// GetTendermintBlockByNumber returns a Tendermint formatted block for a given
// block number
func (b *Backend) GetTendermintBlockByNumber(blockNum rpctypes.BlockNumber) (*tmrpctypes.ResultBlock, error) {
height := blockNum.Int64()
if height <= 0 {
// fetch the latest block number from the app state, more accurate than the tendermint block store state.
n, err := b.BlockNumber()
if err != nil {
return nil, err
}
height = int64(n)
}
resBlock, err := b.clientCtx.Client.Block(b.ctx, &height)
if err != nil {
b.logger.Debug("tendermint client failed to get block", "height", height, "error", err.Error())
return nil, err
}
if resBlock.Block == nil {
b.logger.Debug("GetTendermintBlockByNumber block not found", "height", height)
return nil, nil
}
return resBlock, nil
}
// BlockBloom query block bloom filter from block results
func (b *Backend) BlockBloom(blockRes *tmrpctypes.ResultBlockResults) (ethtypes.Bloom, error) {
for _, event := range blockRes.EndBlockEvents {
if event.Type != evmtypes.EventTypeBlockBloom {
continue
}
for _, attr := range event.Attributes {
if bytes.Equal(attr.Key, bAttributeKeyEthereumBloom) {
return ethtypes.BytesToBloom(attr.Value), nil
}
}
}
return ethtypes.Bloom{}, errors.New("block bloom event is not found")
}
// GetTendermintBlockResultByNumber returns a Tendermint-formatted block result by block number
func (b *Backend) GetTendermintBlockResultByNumber(height *int64) (*tmrpctypes.ResultBlockResults, error) {
return b.clientCtx.Client.BlockResults(b.ctx, height)
}
// GetTendermintBlockByHash returns a Tendermint format block by block number
func (b *Backend) GetTendermintBlockByHash(blockHash common.Hash) (*tmrpctypes.ResultBlock, error) {
resBlock, err := b.clientCtx.Client.BlockByHash(b.ctx, blockHash.Bytes())
if err != nil {
b.logger.Debug("tendermint client failed to get block", "blockHash", blockHash.Hex(), "error", err.Error())
return nil, err
}
if resBlock == nil || resBlock.Block == nil {
b.logger.Debug("GetTendermintBlockByHash block not found", "blockHash", blockHash.Hex())
return nil, nil
}
return resBlock, nil
}
// BlockByNumber returns the block identified by number.
func (b *Backend) BlockByNumber(blockNum rpctypes.BlockNumber) (*ethtypes.Block, error) {
resBlock, err := b.GetTendermintBlockByNumber(blockNum)
if err != nil {
return nil, err
}
if resBlock == nil {
// block not found
return nil, fmt.Errorf("block not found for height %d", blockNum)
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
return nil, fmt.Errorf("block result not found for height %d", resBlock.Block.Height)
}
return b.EthBlockFromTm(resBlock, blockRes)
}
// BlockByHash returns the block identified by hash.
func (b *Backend) BlockByHash(hash common.Hash) (*ethtypes.Block, error) {
resBlock, err := b.GetTendermintBlockByHash(hash)
if err != nil {
return nil, err
}
if resBlock == nil || resBlock.Block == nil {
return nil, fmt.Errorf("block not found for hash %s", hash)
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
return nil, fmt.Errorf("block result not found for hash %s", hash)
}
return b.EthBlockFromTm(resBlock, blockRes)
}
// GetBlockNumberByHash returns the block height of given block hash
func (b *Backend) GetBlockNumberByHash(blockHash common.Hash) (*big.Int, error) {
resBlock, err := b.GetTendermintBlockByHash(blockHash)
if err != nil {
return nil, err
}
if resBlock == nil {
return nil, errors.Errorf("block not found for hash %s", blockHash.Hex())
}
return big.NewInt(resBlock.Block.Height), nil
}
// getBlockNumber returns the BlockNumber from BlockNumberOrHash
func (b *Backend) GetBlockNumber(blockNrOrHash rpctypes.BlockNumberOrHash) (rpctypes.BlockNumber, error) {
switch {
case blockNrOrHash.BlockHash == nil && blockNrOrHash.BlockNumber == nil:
return rpctypes.EthEarliestBlockNumber, fmt.Errorf("types BlockHash and BlockNumber cannot be both nil")
case blockNrOrHash.BlockHash != nil:
blockNumber, err := b.GetBlockNumberByHash(*blockNrOrHash.BlockHash)
if err != nil {
return rpctypes.EthEarliestBlockNumber, err
}
return rpctypes.NewBlockNumber(blockNumber), nil
case blockNrOrHash.BlockNumber != nil:
return *blockNrOrHash.BlockNumber, nil
default:
return rpctypes.EthEarliestBlockNumber, nil
}
}
// GetBlockTransactionCountByHash returns the number of transactions in the block identified by hash.
func (b *Backend) GetBlockTransactionCountByHash(hash common.Hash) *hexutil.Uint {
block, err := b.clientCtx.Client.BlockByHash(b.ctx, hash.Bytes())
if err != nil {
b.logger.Debug("block not found", "hash", hash.Hex(), "error", err.Error())
return nil
}
if block.Block == nil {
b.logger.Debug("block not found", "hash", hash.Hex())
return nil
}
blockRes, err := b.GetTendermintBlockResultByNumber(&block.Block.Height)
if err != nil {
return nil
}
ethMsgs := b.GetEthereumMsgsFromTendermintBlock(block, blockRes)
n := hexutil.Uint(len(ethMsgs))
return &n
}
// GetBlockTransactionCountByNumber returns the number of transactions in the block identified by number.
func (b *Backend) GetBlockTransactionCountByNumber(blockNum rpctypes.BlockNumber) *hexutil.Uint {
block, err := b.GetTendermintBlockByNumber(blockNum)
if err != nil {
b.logger.Debug("block not found", "height", blockNum.Int64(), "error", err.Error())
return nil
}
if block.Block == nil {
b.logger.Debug("block not found", "height", blockNum.Int64())
return nil
}
blockRes, err := b.GetTendermintBlockResultByNumber(&block.Block.Height)
if err != nil {
return nil
}
ethMsgs := b.GetEthereumMsgsFromTendermintBlock(block, blockRes)
n := hexutil.Uint(len(ethMsgs))
return &n
}
// GetEthereumMsgsFromTendermintBlock returns all real MsgEthereumTxs from a
// Tendermint block. It also ensures consistency over the correct txs indexes
// across RPC endpoints
func (b *Backend) GetEthereumMsgsFromTendermintBlock(
resBlock *tmrpctypes.ResultBlock,
blockRes *tmrpctypes.ResultBlockResults,
) []*evmtypes.MsgEthereumTx {
var result []*evmtypes.MsgEthereumTx
block := resBlock.Block
txResults := blockRes.TxsResults
for i, tx := range block.Txs {
// Check if tx exists on EVM by cross checking with blockResults:
// - Include unsuccessful tx that exceeds block gas limit
// - Exclude unsuccessful tx with any other error but ExceedBlockGasLimit
if !TxSuccessOrExceedsBlockGasLimit(txResults[i]) {
b.logger.Debug("invalid tx result code", "cosmos-hash", hexutil.Encode(tx.Hash()))
continue
}
tx, err := b.clientCtx.TxConfig.TxDecoder()(tx)
if err != nil {
b.logger.Debug("failed to decode transaction in block", "height", block.Height, "error", err.Error())
continue
}
for _, msg := range tx.GetMsgs() {
ethMsg, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
ethMsg.Hash = ethMsg.AsTransaction().Hash().Hex()
result = append(result, ethMsg)
}
}
return result
}
// HeaderByNumber returns the block header identified by height.
func (b *Backend) HeaderByNumber(blockNum rpctypes.BlockNumber) (*ethtypes.Header, error) {
resBlock, err := b.GetTendermintBlockByNumber(blockNum)
if err != nil {
return nil, err
}
if resBlock == nil {
return nil, errors.Errorf("block not found for height %d", blockNum)
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
return nil, fmt.Errorf("block result not found for height %d", resBlock.Block.Height)
}
bloom, err := b.BlockBloom(blockRes)
if err != nil {
b.logger.Debug("HeaderByNumber BlockBloom failed", "height", resBlock.Block.Height)
}
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle the error for pruned node.
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", resBlock.Block.Height, "error", err)
}
ethHeader := rpctypes.EthHeaderFromTendermint(resBlock.Block.Header, bloom, baseFee)
return ethHeader, nil
}
// HeaderByHash returns the block header identified by hash.
func (b *Backend) HeaderByHash(blockHash common.Hash) (*ethtypes.Header, error) {
resBlock, err := b.GetTendermintBlockByHash(blockHash)
if err != nil {
return nil, err
}
if resBlock == nil {
return nil, errors.Errorf("block not found for hash %s", blockHash.Hex())
}
blockRes, err := b.GetTendermintBlockResultByNumber(&resBlock.Block.Height)
if err != nil {
return nil, errors.Errorf("block result not found for height %d", resBlock.Block.Height)
}
bloom, err := b.BlockBloom(blockRes)
if err != nil {
b.logger.Debug("HeaderByHash BlockBloom failed", "height", resBlock.Block.Height)
}
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle the error for pruned node.
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", resBlock.Block.Height, "error", err)
}
ethHeader := rpctypes.EthHeaderFromTendermint(resBlock.Block.Header, bloom, baseFee)
return ethHeader, nil
}
// EthBlockFromTendermint returns a JSON-RPC compatible Ethereum block from a
// given Tendermint block and its block result.
func (b *Backend) EthBlockFromTendermint(
resBlock *tmrpctypes.ResultBlock,
blockRes *tmrpctypes.ResultBlockResults,
fullTx bool,
) (map[string]interface{}, error) {
ethRPCTxs := []interface{}{}
block := resBlock.Block
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle the error for pruned node.
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", block.Height, "error", err)
}
msgs := b.GetEthereumMsgsFromTendermintBlock(resBlock, blockRes)
for txIndex, ethMsg := range msgs {
if !fullTx {
hash := common.HexToHash(ethMsg.Hash)
ethRPCTxs = append(ethRPCTxs, hash)
continue
}
tx := ethMsg.AsTransaction()
rpcTx, err := rpctypes.NewRPCTransaction(
tx,
common.BytesToHash(block.Hash()),
uint64(block.Height),
uint64(txIndex),
baseFee,
)
if err != nil {
b.logger.Debug("NewTransactionFromData for receipt failed", "hash", tx.Hash().Hex(), "error", err.Error())
continue
}
ethRPCTxs = append(ethRPCTxs, rpcTx)
}
bloom, err := b.BlockBloom(blockRes)
if err != nil {
b.logger.Debug("failed to query BlockBloom", "height", block.Height, "error", err.Error())
}
req := &evmtypes.QueryValidatorAccountRequest{
ConsAddress: sdk.ConsAddress(block.Header.ProposerAddress).String(),
}
var validatorAccAddr sdk.AccAddress
ctx := rpctypes.ContextWithHeight(block.Height)
res, err := b.queryClient.ValidatorAccount(ctx, req)
if err != nil {
b.logger.Debug(
"failed to query validator operator address",
"height", block.Height,
"cons-address", req.ConsAddress,
"error", err.Error(),
)
// use zero address as the validator operator address
validatorAccAddr = sdk.AccAddress(common.Address{}.Bytes())
} else {
validatorAccAddr, err = sdk.AccAddressFromBech32(res.AccountAddress)
if err != nil {
return nil, err
}
}
validatorAddr := common.BytesToAddress(validatorAccAddr)
gasLimit, err := rpctypes.BlockMaxGasFromConsensusParams(ctx, b.clientCtx, block.Height)
if err != nil {
b.logger.Error("failed to query consensus params", "error", err.Error())
}
gasUsed := uint64(0)
for _, txsResult := range blockRes.TxsResults {
// workaround for cosmos-sdk bug. https://github.com/cosmos/cosmos-sdk/issues/10832
if ShouldIgnoreGasUsed(txsResult) {
// block gas limit has exceeded, other txs must have failed with same reason.
break
}
gasUsed += uint64(txsResult.GetGasUsed())
}
formattedBlock := rpctypes.FormatBlock(
block.Header, block.Size(),
gasLimit, new(big.Int).SetUint64(gasUsed),
ethRPCTxs, bloom, validatorAddr, baseFee,
)
return formattedBlock, nil
}
// Returns and Ethereum Block type from Tendermint block
func (b *Backend) EthBlockFromTm(resBlock *tmrpctypes.ResultBlock, blockRes *tmrpctypes.ResultBlockResults) (*ethtypes.Block, error) {
block := resBlock.Block
height := block.Height
bloom, err := b.BlockBloom(blockRes)
if err != nil {
b.logger.Debug("HeaderByNumber BlockBloom failed", "height", height)
}
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle error for pruned node and log
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", height, "error", err)
}
ethHeader := rpctypes.EthHeaderFromTendermint(block.Header, bloom, baseFee)
resBlockResult, err := b.GetTendermintBlockResultByNumber(&block.Height)
if err != nil {
return nil, err
}
msgs := b.GetEthereumMsgsFromTendermintBlock(resBlock, resBlockResult)
txs := make([]*ethtypes.Transaction, len(msgs))
for i, ethMsg := range msgs {
txs[i] = ethMsg.AsTransaction()
}
// TODO: add tx receipts
ethBlock := ethtypes.NewBlock(ethHeader, txs, nil, nil, nil)
return ethBlock, nil
}

364
rpc/backend/call_tx.go Normal file
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@ -0,0 +1,364 @@
package backend
import (
"bytes"
"context"
"encoding/json"
"fmt"
"math/big"
"github.com/cosmos/cosmos-sdk/client/flags"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
rpctypes "github.com/evmos/ethermint/rpc/types"
ethermint "github.com/evmos/ethermint/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// Resend accepts an existing transaction and a new gas price and limit. It will remove
// the given transaction from the pool and reinsert it with the new gas price and limit.
func (b *Backend) Resend(args evmtypes.TransactionArgs, gasPrice *hexutil.Big, gasLimit *hexutil.Uint64) (common.Hash, error) {
if args.Nonce == nil {
return common.Hash{}, fmt.Errorf("missing transaction nonce in transaction spec")
}
args, err := b.SetTxDefaults(args)
if err != nil {
return common.Hash{}, err
}
// The signer used should always be the 'latest' known one because we expect
// signers to be backwards-compatible with old transactions.
eip155ChainID, err := ethermint.ParseChainID(b.clientCtx.ChainID)
if err != nil {
return common.Hash{}, err
}
cfg := b.ChainConfig()
if cfg == nil {
cfg = evmtypes.DefaultChainConfig().EthereumConfig(eip155ChainID)
}
signer := ethtypes.LatestSigner(cfg)
matchTx := args.ToTransaction().AsTransaction()
// Before replacing the old transaction, ensure the _new_ transaction fee is reasonable.
price := matchTx.GasPrice()
if gasPrice != nil {
price = gasPrice.ToInt()
}
gas := matchTx.Gas()
if gasLimit != nil {
gas = uint64(*gasLimit)
}
if err := rpctypes.CheckTxFee(price, gas, b.RPCTxFeeCap()); err != nil {
return common.Hash{}, err
}
pending, err := b.PendingTransactions()
if err != nil {
return common.Hash{}, err
}
for _, tx := range pending {
// FIXME does Resend api possible at all? https://github.com/evmos/ethermint/issues/905
p, err := evmtypes.UnwrapEthereumMsg(tx, common.Hash{})
if err != nil {
// not valid ethereum tx
continue
}
pTx := p.AsTransaction()
wantSigHash := signer.Hash(matchTx)
pFrom, err := ethtypes.Sender(signer, pTx)
if err != nil {
continue
}
if pFrom == *args.From && signer.Hash(pTx) == wantSigHash {
// Match. Re-sign and send the transaction.
if gasPrice != nil && (*big.Int)(gasPrice).Sign() != 0 {
args.GasPrice = gasPrice
}
if gasLimit != nil && *gasLimit != 0 {
args.Gas = gasLimit
}
return b.SendTransaction(args) // TODO: this calls SetTxDefaults again, refactor to avoid calling it twice
}
}
return common.Hash{}, fmt.Errorf("transaction %#x not found", matchTx.Hash())
}
// SendRawTransaction send a raw Ethereum transaction.
func (b *Backend) SendRawTransaction(data hexutil.Bytes) (common.Hash, error) {
// RLP decode raw transaction bytes
tx := &ethtypes.Transaction{}
if err := tx.UnmarshalBinary(data); err != nil {
b.logger.Error("transaction decoding failed", "error", err.Error())
return common.Hash{}, err
}
// check the local node config in case unprotected txs are disabled
if !b.UnprotectedAllowed() && !tx.Protected() {
// Ensure only eip155 signed transactions are submitted if EIP155Required is set.
return common.Hash{}, errors.New("only replay-protected (EIP-155) transactions allowed over RPC")
}
ethereumTx := &evmtypes.MsgEthereumTx{}
if err := ethereumTx.FromEthereumTx(tx); err != nil {
b.logger.Error("transaction converting failed", "error", err.Error())
return common.Hash{}, err
}
if err := ethereumTx.ValidateBasic(); err != nil {
b.logger.Debug("tx failed basic validation", "error", err.Error())
return common.Hash{}, err
}
// Query params to use the EVM denomination
res, err := b.queryClient.QueryClient.Params(b.ctx, &evmtypes.QueryParamsRequest{})
if err != nil {
b.logger.Error("failed to query evm params", "error", err.Error())
return common.Hash{}, err
}
cosmosTx, err := ethereumTx.BuildTx(b.clientCtx.TxConfig.NewTxBuilder(), res.Params.EvmDenom)
if err != nil {
b.logger.Error("failed to build cosmos tx", "error", err.Error())
return common.Hash{}, err
}
// Encode transaction by default Tx encoder
txBytes, err := b.clientCtx.TxConfig.TxEncoder()(cosmosTx)
if err != nil {
b.logger.Error("failed to encode eth tx using default encoder", "error", err.Error())
return common.Hash{}, err
}
txHash := ethereumTx.AsTransaction().Hash()
syncCtx := b.clientCtx.WithBroadcastMode(flags.BroadcastSync)
rsp, err := syncCtx.BroadcastTx(txBytes)
if rsp != nil && rsp.Code != 0 {
err = sdkerrors.ABCIError(rsp.Codespace, rsp.Code, rsp.RawLog)
}
if err != nil {
b.logger.Error("failed to broadcast tx", "error", err.Error())
return txHash, err
}
return txHash, nil
}
// SetTxDefaults populates tx message with default values in case they are not
// provided on the args
func (b *Backend) SetTxDefaults(args evmtypes.TransactionArgs) (evmtypes.TransactionArgs, error) {
if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) {
return args, errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified")
}
head := b.CurrentHeader()
if head == nil {
return args, errors.New("latest header is nil")
}
// If user specifies both maxPriorityfee and maxFee, then we do not
// need to consult the chain for defaults. It's definitely a London tx.
if args.MaxPriorityFeePerGas == nil || args.MaxFeePerGas == nil {
// In this clause, user left some fields unspecified.
if head.BaseFee != nil && args.GasPrice == nil {
if args.MaxPriorityFeePerGas == nil {
tip, err := b.SuggestGasTipCap(head.BaseFee)
if err != nil {
return args, err
}
args.MaxPriorityFeePerGas = (*hexutil.Big)(tip)
}
if args.MaxFeePerGas == nil {
gasFeeCap := new(big.Int).Add(
(*big.Int)(args.MaxPriorityFeePerGas),
new(big.Int).Mul(head.BaseFee, big.NewInt(2)),
)
args.MaxFeePerGas = (*hexutil.Big)(gasFeeCap)
}
if args.MaxFeePerGas.ToInt().Cmp(args.MaxPriorityFeePerGas.ToInt()) < 0 {
return args, fmt.Errorf("maxFeePerGas (%v) < maxPriorityFeePerGas (%v)", args.MaxFeePerGas, args.MaxPriorityFeePerGas)
}
} else {
if args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil {
return args, errors.New("maxFeePerGas or maxPriorityFeePerGas specified but london is not active yet")
}
if args.GasPrice == nil {
price, err := b.SuggestGasTipCap(head.BaseFee)
if err != nil {
return args, err
}
if head.BaseFee != nil {
// The legacy tx gas price suggestion should not add 2x base fee
// because all fees are consumed, so it would result in a spiral
// upwards.
price.Add(price, head.BaseFee)
}
args.GasPrice = (*hexutil.Big)(price)
}
}
} else {
// Both maxPriorityfee and maxFee set by caller. Sanity-check their internal relation
if args.MaxFeePerGas.ToInt().Cmp(args.MaxPriorityFeePerGas.ToInt()) < 0 {
return args, fmt.Errorf("maxFeePerGas (%v) < maxPriorityFeePerGas (%v)", args.MaxFeePerGas, args.MaxPriorityFeePerGas)
}
}
if args.Value == nil {
args.Value = new(hexutil.Big)
}
if args.Nonce == nil {
// get the nonce from the account retriever
// ignore error in case tge account doesn't exist yet
nonce, _ := b.getAccountNonce(*args.From, true, 0, b.logger)
args.Nonce = (*hexutil.Uint64)(&nonce)
}
if args.Data != nil && args.Input != nil && !bytes.Equal(*args.Data, *args.Input) {
return args, errors.New("both 'data' and 'input' are set and not equal. Please use 'input' to pass transaction call data")
}
if args.To == nil {
// Contract creation
var input []byte
if args.Data != nil {
input = *args.Data
} else if args.Input != nil {
input = *args.Input
}
if len(input) == 0 {
return args, errors.New("contract creation without any data provided")
}
}
if args.Gas == nil {
// For backwards-compatibility reason, we try both input and data
// but input is preferred.
input := args.Input
if input == nil {
input = args.Data
}
callArgs := evmtypes.TransactionArgs{
From: args.From,
To: args.To,
Gas: args.Gas,
GasPrice: args.GasPrice,
MaxFeePerGas: args.MaxFeePerGas,
MaxPriorityFeePerGas: args.MaxPriorityFeePerGas,
Value: args.Value,
Data: input,
AccessList: args.AccessList,
}
blockNr := rpctypes.NewBlockNumber(big.NewInt(0))
estimated, err := b.EstimateGas(callArgs, &blockNr)
if err != nil {
return args, err
}
args.Gas = &estimated
b.logger.Debug("estimate gas usage automatically", "gas", args.Gas)
}
if args.ChainID == nil {
args.ChainID = (*hexutil.Big)(b.chainID)
}
return args, nil
}
// EstimateGas returns an estimate of gas usage for the given smart contract call.
func (b *Backend) EstimateGas(args evmtypes.TransactionArgs, blockNrOptional *rpctypes.BlockNumber) (hexutil.Uint64, error) {
blockNr := rpctypes.EthPendingBlockNumber
if blockNrOptional != nil {
blockNr = *blockNrOptional
}
bz, err := json.Marshal(&args)
if err != nil {
return 0, err
}
req := evmtypes.EthCallRequest{
Args: bz,
GasCap: b.RPCGasCap(),
}
// From ContextWithHeight: if the provided height is 0,
// it will return an empty context and the gRPC query will use
// the latest block height for querying.
res, err := b.queryClient.EstimateGas(rpctypes.ContextWithHeight(blockNr.Int64()), &req)
if err != nil {
return 0, err
}
return hexutil.Uint64(res.Gas), nil
}
// DoCall performs a simulated call operation through the evmtypes. It returns the
// estimated gas used on the operation or an error if fails.
func (b *Backend) DoCall(
args evmtypes.TransactionArgs, blockNr rpctypes.BlockNumber,
) (*evmtypes.MsgEthereumTxResponse, error) {
bz, err := json.Marshal(&args)
if err != nil {
return nil, err
}
req := evmtypes.EthCallRequest{
Args: bz,
GasCap: b.RPCGasCap(),
}
// From ContextWithHeight: if the provided height is 0,
// it will return an empty context and the gRPC query will use
// the latest block height for querying.
ctx := rpctypes.ContextWithHeight(blockNr.Int64())
timeout := b.RPCEVMTimeout()
// Setup context so it may be canceled the call has completed
// or, in case of unmetered gas, setup a context with a timeout.
var cancel context.CancelFunc
if timeout > 0 {
ctx, cancel = context.WithTimeout(ctx, timeout)
} else {
ctx, cancel = context.WithCancel(ctx)
}
// Make sure the context is canceled when the call has completed
// this makes sure resources are cleaned up.
defer cancel()
res, err := b.queryClient.EthCall(ctx, &req)
if err != nil {
return nil, err
}
if res.Failed() {
if res.VmError != vm.ErrExecutionReverted.Error() {
return nil, status.Error(codes.Internal, res.VmError)
}
return nil, evmtypes.NewExecErrorWithReason(res.Ret)
}
return res, nil
}

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package backend
import (
"fmt"
"math/big"
"strconv"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common/hexutil"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
rpctypes "github.com/evmos/ethermint/rpc/types"
ethermint "github.com/evmos/ethermint/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
feemarkettypes "github.com/evmos/ethermint/x/feemarket/types"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
)
// ChainID is the EIP-155 replay-protection chain id for the current ethereum chain config.
func (b *Backend) ChainID() (*hexutil.Big, error) {
eip155ChainID, err := ethermint.ParseChainID(b.clientCtx.ChainID)
if err != nil {
panic(err)
}
// if current block is at or past the EIP-155 replay-protection fork block, return chainID from config
bn, err := b.BlockNumber()
if err != nil {
b.logger.Debug("failed to fetch latest block number", "error", err.Error())
return (*hexutil.Big)(eip155ChainID), nil
}
if config := b.ChainConfig(); config.IsEIP155(new(big.Int).SetUint64(uint64(bn))) {
return (*hexutil.Big)(config.ChainID), nil
}
return nil, fmt.Errorf("chain not synced beyond EIP-155 replay-protection fork block")
}
// ChainConfig returns the latest ethereum chain configuration
func (b *Backend) ChainConfig() *params.ChainConfig {
params, err := b.queryClient.Params(b.ctx, &evmtypes.QueryParamsRequest{})
if err != nil {
return nil
}
return params.Params.ChainConfig.EthereumConfig(b.chainID)
}
// GlobalMinGasPrice returns MinGasPrice param from FeeMarket
func (b *Backend) GlobalMinGasPrice() (sdk.Dec, error) {
res, err := b.queryClient.FeeMarket.Params(b.ctx, &feemarkettypes.QueryParamsRequest{})
if err != nil {
return sdk.ZeroDec(), err
}
return res.Params.MinGasPrice, nil
}
// BaseFee returns the base fee tracked by the Fee Market module.
// If the base fee is not enabled globally, the query returns nil.
// If the London hard fork is not activated at the current height, the query will
// return nil.
func (b *Backend) BaseFee(blockRes *tmrpctypes.ResultBlockResults) (*big.Int, error) {
// return BaseFee if London hard fork is activated and feemarket is enabled
res, err := b.queryClient.BaseFee(rpctypes.ContextWithHeight(blockRes.Height), &evmtypes.QueryBaseFeeRequest{})
if err != nil || res.BaseFee == nil {
// we can't tell if it's london HF not enabled or the state is pruned,
// in either case, we'll fallback to parsing from begin blocker event,
// faster to iterate reversely
for i := len(blockRes.BeginBlockEvents) - 1; i >= 0; i-- {
evt := blockRes.BeginBlockEvents[i]
if evt.Type == feemarkettypes.EventTypeFeeMarket && len(evt.Attributes) > 0 {
baseFee, err := strconv.ParseInt(string(evt.Attributes[0].Value), 10, 64)
if err == nil {
return big.NewInt(baseFee), nil
}
break
}
}
return nil, err
}
if res.BaseFee == nil {
return nil, nil
}
return res.BaseFee.BigInt(), nil
}
// CurrentHeader returns the latest block header
func (b *Backend) CurrentHeader() *ethtypes.Header {
header, _ := b.HeaderByNumber(rpctypes.EthLatestBlockNumber)
return header
}
// PendingTransactions returns the transactions that are in the transaction pool
// and have a from address that is one of the accounts this node manages.
func (b *Backend) PendingTransactions() ([]*sdk.Tx, error) {
res, err := b.clientCtx.Client.UnconfirmedTxs(b.ctx, nil)
if err != nil {
return nil, err
}
result := make([]*sdk.Tx, 0, len(res.Txs))
for _, txBz := range res.Txs {
tx, err := b.clientCtx.TxConfig.TxDecoder()(txBz)
if err != nil {
return nil, err
}
result = append(result, &tx)
}
return result, nil
}
// GetCoinbase is the address that staking rewards will be send to (alias for Etherbase).
func (b *Backend) GetCoinbase() (sdk.AccAddress, error) {
node, err := b.clientCtx.GetNode()
if err != nil {
return nil, err
}
status, err := node.Status(b.ctx)
if err != nil {
return nil, err
}
req := &evmtypes.QueryValidatorAccountRequest{
ConsAddress: sdk.ConsAddress(status.ValidatorInfo.Address).String(),
}
res, err := b.queryClient.ValidatorAccount(b.ctx, req)
if err != nil {
return nil, err
}
address, _ := sdk.AccAddressFromBech32(res.AccountAddress)
return address, nil
}
// FeeHistory returns data relevant for fee estimation based on the specified range of blocks.
func (b *Backend) FeeHistory(
userBlockCount rpc.DecimalOrHex, // number blocks to fetch, maximum is 100
lastBlock rpc.BlockNumber, // the block to start search , to oldest
rewardPercentiles []float64, // percentiles to fetch reward
) (*rpctypes.FeeHistoryResult, error) {
blockEnd := int64(lastBlock)
if blockEnd <= 0 {
blockNumber, err := b.BlockNumber()
if err != nil {
return nil, err
}
blockEnd = int64(blockNumber)
}
userBlockCountInt := int64(userBlockCount)
maxBlockCount := int64(b.cfg.JSONRPC.FeeHistoryCap)
if userBlockCountInt > maxBlockCount {
return nil, fmt.Errorf("FeeHistory user block count %d higher than %d", userBlockCountInt, maxBlockCount)
}
blockStart := blockEnd - userBlockCountInt
if blockStart < 0 {
blockStart = 0
}
blockCount := blockEnd - blockStart
oldestBlock := (*hexutil.Big)(big.NewInt(blockStart))
// prepare space
reward := make([][]*hexutil.Big, blockCount)
rewardCount := len(rewardPercentiles)
for i := 0; i < int(blockCount); i++ {
reward[i] = make([]*hexutil.Big, rewardCount)
}
thisBaseFee := make([]*hexutil.Big, blockCount)
thisGasUsedRatio := make([]float64, blockCount)
// rewards should only be calculated if reward percentiles were included
calculateRewards := rewardCount != 0
// fetch block
for blockID := blockStart; blockID < blockEnd; blockID++ {
index := int32(blockID - blockStart)
// tendermint block
tendermintblock, err := b.GetTendermintBlockByNumber(rpctypes.BlockNumber(blockID))
if tendermintblock == nil {
return nil, err
}
// eth block
ethBlock, err := b.GetBlockByNumber(rpctypes.BlockNumber(blockID), true)
if ethBlock == nil {
return nil, err
}
// tendermint block result
tendermintBlockResult, err := b.GetTendermintBlockResultByNumber(&tendermintblock.Block.Height)
if tendermintBlockResult == nil {
b.logger.Debug("block result not found", "height", tendermintblock.Block.Height, "error", err.Error())
return nil, err
}
oneFeeHistory := rpctypes.OneFeeHistory{}
err = b.processBlock(tendermintblock, &ethBlock, rewardPercentiles, tendermintBlockResult, &oneFeeHistory)
if err != nil {
return nil, err
}
// copy
thisBaseFee[index] = (*hexutil.Big)(oneFeeHistory.BaseFee)
thisGasUsedRatio[index] = oneFeeHistory.GasUsedRatio
if calculateRewards {
for j := 0; j < rewardCount; j++ {
reward[index][j] = (*hexutil.Big)(oneFeeHistory.Reward[j])
if reward[index][j] == nil {
reward[index][j] = (*hexutil.Big)(big.NewInt(0))
}
}
}
}
feeHistory := rpctypes.FeeHistoryResult{
OldestBlock: oldestBlock,
BaseFee: thisBaseFee,
GasUsedRatio: thisGasUsedRatio,
}
if calculateRewards {
feeHistory.Reward = reward
}
return &feeHistory, nil
}
// SuggestGasTipCap returns the suggested tip cap
// Although we don't support tx prioritization yet, but we return a positive value to help client to
// mitigate the base fee changes.
func (b *Backend) SuggestGasTipCap(baseFee *big.Int) (*big.Int, error) {
if baseFee == nil {
// london hardfork not enabled or feemarket not enabled
return big.NewInt(0), nil
}
params, err := b.queryClient.FeeMarket.Params(b.ctx, &feemarkettypes.QueryParamsRequest{})
if err != nil {
return nil, err
}
// calculate the maximum base fee delta in current block, assuming all block gas limit is consumed
// ```
// GasTarget = GasLimit / ElasticityMultiplier
// Delta = BaseFee * (GasUsed - GasTarget) / GasTarget / Denominator
// ```
// The delta is at maximum when `GasUsed` is equal to `GasLimit`, which is:
// ```
// MaxDelta = BaseFee * (GasLimit - GasLimit / ElasticityMultiplier) / (GasLimit / ElasticityMultiplier) / Denominator
// = BaseFee * (ElasticityMultiplier - 1) / Denominator
// ```
maxDelta := baseFee.Int64() * (int64(params.Params.ElasticityMultiplier) - 1) / int64(params.Params.BaseFeeChangeDenominator)
if maxDelta < 0 {
// impossible if the parameter validation passed.
maxDelta = 0
}
return big.NewInt(maxDelta), nil
}

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rpc/backend/evm_backend.go
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package backend
import (
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/pkg/errors"
)
// GetLogs returns all the logs from all the ethereum transactions in a block.
func (b *Backend) GetLogs(hash common.Hash) ([][]*ethtypes.Log, error) {
resBlock, err := b.GetTendermintBlockByHash(hash)
if err != nil {
return nil, err
}
if resBlock == nil {
return nil, errors.Errorf("block not found for hash %s", hash)
}
return b.GetLogsByHeight(&resBlock.Block.Header.Height)
}
// GetLogsByHeight returns all the logs from all the ethereum transactions in a block.
func (b *Backend) GetLogsByHeight(height *int64) ([][]*ethtypes.Log, error) {
// NOTE: we query the state in case the tx result logs are not persisted after an upgrade.
blockRes, err := b.GetTendermintBlockResultByNumber(height)
if err != nil {
return nil, err
}
return GetLogsFromBlockResults(blockRes)
}
// BloomStatus returns the BloomBitsBlocks and the number of processed sections maintained
// by the chain indexer.
func (b *Backend) BloomStatus() (uint64, uint64) {
return 4096, 0
}

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package backend
import (
"fmt"
"math/big"
"time"
sdkmath "cosmossdk.io/math"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/client/tx"
sdkcrypto "github.com/cosmos/cosmos-sdk/crypto"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
distributiontypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/evmos/ethermint/crypto/ethsecp256k1"
rpctypes "github.com/evmos/ethermint/rpc/types"
ethermint "github.com/evmos/ethermint/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
tmtypes "github.com/tendermint/tendermint/types"
)
// Accounts returns the list of accounts available to this node.
func (b *Backend) Accounts() ([]common.Address, error) {
addresses := make([]common.Address, 0) // return [] instead of nil if empty
infos, err := b.clientCtx.Keyring.List()
if err != nil {
return addresses, err
}
for _, info := range infos {
pubKey, err := info.GetPubKey()
if err != nil {
return nil, err
}
addressBytes := pubKey.Address().Bytes()
addresses = append(addresses, common.BytesToAddress(addressBytes))
}
return addresses, nil
}
// Syncing returns false in case the node is currently not syncing with the network. It can be up to date or has not
// yet received the latest block headers from its pears. In case it is synchronizing:
// - startingBlock: block number this node started to synchronize from
// - currentBlock: block number this node is currently importing
// - highestBlock: block number of the highest block header this node has received from peers
// - pulledStates: number of state entries processed until now
// - knownStates: number of known state entries that still need to be pulled
func (b *Backend) Syncing() (interface{}, error) {
status, err := b.clientCtx.Client.Status(b.ctx)
if err != nil {
return false, err
}
if !status.SyncInfo.CatchingUp {
return false, nil
}
return map[string]interface{}{
"startingBlock": hexutil.Uint64(status.SyncInfo.EarliestBlockHeight),
"currentBlock": hexutil.Uint64(status.SyncInfo.LatestBlockHeight),
// "highestBlock": nil, // NA
// "pulledStates": nil, // NA
// "knownStates": nil, // NA
}, nil
}
// SetEtherbase sets the etherbase of the miner
func (b *Backend) SetEtherbase(etherbase common.Address) bool {
delAddr, err := b.GetCoinbase()
if err != nil {
b.logger.Debug("failed to get coinbase address", "error", err.Error())
return false
}
withdrawAddr := sdk.AccAddress(etherbase.Bytes())
msg := distributiontypes.NewMsgSetWithdrawAddress(delAddr, withdrawAddr)
if err := msg.ValidateBasic(); err != nil {
b.logger.Debug("tx failed basic validation", "error", err.Error())
return false
}
// Assemble transaction from fields
builder, ok := b.clientCtx.TxConfig.NewTxBuilder().(authtx.ExtensionOptionsTxBuilder)
if !ok {
b.logger.Debug("clientCtx.TxConfig.NewTxBuilder returns unsupported builder", "error", err.Error())
return false
}
err = builder.SetMsgs(msg)
if err != nil {
b.logger.Error("builder.SetMsgs failed", "error", err.Error())
return false
}
// Fetch minimun gas price to calculate fees using the configuration.
minGasPrices := b.cfg.GetMinGasPrices()
if len(minGasPrices) == 0 || minGasPrices.Empty() {
b.logger.Debug("the minimun fee is not set")
return false
}
minGasPriceValue := minGasPrices[0].Amount
denom := minGasPrices[0].Denom
delCommonAddr := common.BytesToAddress(delAddr.Bytes())
nonce, err := b.GetTransactionCount(delCommonAddr, rpctypes.EthPendingBlockNumber)
if err != nil {
b.logger.Debug("failed to get nonce", "error", err.Error())
return false
}
txFactory := tx.Factory{}
txFactory = txFactory.
WithChainID(b.clientCtx.ChainID).
WithKeybase(b.clientCtx.Keyring).
WithTxConfig(b.clientCtx.TxConfig).
WithSequence(uint64(*nonce)).
WithGasAdjustment(1.25)
_, gas, err := tx.CalculateGas(b.clientCtx, txFactory, msg)
if err != nil {
b.logger.Debug("failed to calculate gas", "error", err.Error())
return false
}
txFactory = txFactory.WithGas(gas)
value := new(big.Int).SetUint64(gas * minGasPriceValue.Ceil().TruncateInt().Uint64())
fees := sdk.Coins{sdk.NewCoin(denom, sdkmath.NewIntFromBigInt(value))}
builder.SetFeeAmount(fees)
builder.SetGasLimit(gas)
keyInfo, err := b.clientCtx.Keyring.KeyByAddress(delAddr)
if err != nil {
b.logger.Debug("failed to get the wallet address using the keyring", "error", err.Error())
return false
}
if err := tx.Sign(txFactory, keyInfo.Name, builder, false); err != nil {
b.logger.Debug("failed to sign tx", "error", err.Error())
return false
}
// Encode transaction by default Tx encoder
txEncoder := b.clientCtx.TxConfig.TxEncoder()
txBytes, err := txEncoder(builder.GetTx())
if err != nil {
b.logger.Debug("failed to encode eth tx using default encoder", "error", err.Error())
return false
}
tmHash := common.BytesToHash(tmtypes.Tx(txBytes).Hash())
// Broadcast transaction in sync mode (default)
// NOTE: If error is encountered on the node, the broadcast will not return an error
syncCtx := b.clientCtx.WithBroadcastMode(flags.BroadcastSync)
rsp, err := syncCtx.BroadcastTx(txBytes)
if rsp != nil && rsp.Code != 0 {
err = sdkerrors.ABCIError(rsp.Codespace, rsp.Code, rsp.RawLog)
}
if err != nil {
b.logger.Debug("failed to broadcast tx", "error", err.Error())
return false
}
b.logger.Debug("broadcasted tx to set miner withdraw address (etherbase)", "hash", tmHash.String())
return true
}
// ImportRawKey armors and encrypts a given raw hex encoded ECDSA key and stores it into the key directory.
// The name of the key will have the format "personal_<length-keys>", where <length-keys> is the total number of
// keys stored on the keyring.
//
// NOTE: The key will be both armored and encrypted using the same passphrase.
func (b *Backend) ImportRawKey(privkey, password string) (common.Address, error) {
priv, err := crypto.HexToECDSA(privkey)
if err != nil {
return common.Address{}, err
}
privKey := &ethsecp256k1.PrivKey{Key: crypto.FromECDSA(priv)}
addr := sdk.AccAddress(privKey.PubKey().Address().Bytes())
ethereumAddr := common.BytesToAddress(addr)
// return if the key has already been imported
if _, err := b.clientCtx.Keyring.KeyByAddress(addr); err == nil {
return ethereumAddr, nil
}
// ignore error as we only care about the length of the list
list, _ := b.clientCtx.Keyring.List()
privKeyName := fmt.Sprintf("personal_%d", len(list))
armor := sdkcrypto.EncryptArmorPrivKey(privKey, password, ethsecp256k1.KeyType)
if err := b.clientCtx.Keyring.ImportPrivKey(privKeyName, armor, password); err != nil {
return common.Address{}, err
}
b.logger.Info("key successfully imported", "name", privKeyName, "address", ethereumAddr.String())
return ethereumAddr, nil
}
// ListAccounts will return a list of addresses for accounts this node manages.
func (b *Backend) ListAccounts() ([]common.Address, error) {
addrs := []common.Address{}
list, err := b.clientCtx.Keyring.List()
if err != nil {
return nil, err
}
for _, info := range list {
pubKey, err := info.GetPubKey()
if err != nil {
return nil, err
}
addrs = append(addrs, common.BytesToAddress(pubKey.Address()))
}
return addrs, nil
}
// NewAccount will create a new account and returns the address for the new account.
func (b *Backend) NewMnemonic(uid string, language keyring.Language, hdPath, bip39Passphrase string, algo keyring.SignatureAlgo) (*keyring.Record, error) {
info, _, err := b.clientCtx.Keyring.NewMnemonic(uid, keyring.English, bip39Passphrase, bip39Passphrase, algo)
if err != nil {
return nil, err
}
return info, err
}
// UnprotectedAllowed returns the node configuration value for allowing
// unprotected transactions (i.e not replay-protected)
func (b Backend) UnprotectedAllowed() bool {
return b.allowUnprotectedTxs
}
// RPCGasCap is the global gas cap for eth-call variants.
func (b *Backend) RPCGasCap() uint64 {
return b.cfg.JSONRPC.GasCap
}
// RPCEVMTimeout is the global evm timeout for eth-call variants.
func (b *Backend) RPCEVMTimeout() time.Duration {
return b.cfg.JSONRPC.EVMTimeout
}
// RPCGasCap is the global gas cap for eth-call variants.
func (b *Backend) RPCTxFeeCap() float64 {
return b.cfg.JSONRPC.TxFeeCap
}
// RPCFilterCap is the limit for total number of filters that can be created
func (b *Backend) RPCFilterCap() int32 {
return b.cfg.JSONRPC.FilterCap
}
// RPCFeeHistoryCap is the limit for total number of blocks that can be fetched
func (b *Backend) RPCFeeHistoryCap() int32 {
return b.cfg.JSONRPC.FeeHistoryCap
}
// RPCLogsCap defines the max number of results can be returned from single `eth_getLogs` query.
func (b *Backend) RPCLogsCap() int32 {
return b.cfg.JSONRPC.LogsCap
}
// RPCBlockRangeCap defines the max block range allowed for `eth_getLogs` query.
func (b *Backend) RPCBlockRangeCap() int32 {
return b.cfg.JSONRPC.BlockRangeCap
}
// RPCMinGasPrice returns the minimum gas price for a transaction obtained from
// the node config. If set value is 0, it will default to 20.
func (b *Backend) RPCMinGasPrice() int64 {
evmParams, err := b.queryClient.Params(b.ctx, &evmtypes.QueryParamsRequest{})
if err != nil {
return ethermint.DefaultGasPrice
}
minGasPrice := b.cfg.GetMinGasPrices()
amt := minGasPrice.AmountOf(evmParams.Params.EvmDenom).TruncateInt64()
if amt == 0 {
return ethermint.DefaultGasPrice
}
return amt
}

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package backend
import (
"fmt"
"math/big"
"github.com/cosmos/cosmos-sdk/client/flags"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/signer/core/apitypes"
"github.com/evmos/ethermint/ethereum/eip712"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
)
// SendTransaction sends transaction based on received args using Node's key to sign it
func (b *Backend) SendTransaction(args evmtypes.TransactionArgs) (common.Hash, error) {
// Look up the wallet containing the requested signer
_, err := b.clientCtx.Keyring.KeyByAddress(sdk.AccAddress(args.From.Bytes()))
if err != nil {
b.logger.Error("failed to find key in keyring", "address", args.From, "error", err.Error())
return common.Hash{}, fmt.Errorf("%s; %s", keystore.ErrNoMatch, err.Error())
}
args, err = b.SetTxDefaults(args)
if err != nil {
return common.Hash{}, err
}
msg := args.ToTransaction()
if err := msg.ValidateBasic(); err != nil {
b.logger.Debug("tx failed basic validation", "error", err.Error())
return common.Hash{}, err
}
bn, err := b.BlockNumber()
if err != nil {
b.logger.Debug("failed to fetch latest block number", "error", err.Error())
return common.Hash{}, err
}
signer := ethtypes.MakeSigner(b.ChainConfig(), new(big.Int).SetUint64(uint64(bn)))
// Sign transaction
if err := msg.Sign(signer, b.clientCtx.Keyring); err != nil {
b.logger.Debug("failed to sign tx", "error", err.Error())
return common.Hash{}, err
}
// Query params to use the EVM denomination
res, err := b.queryClient.QueryClient.Params(b.ctx, &evmtypes.QueryParamsRequest{})
if err != nil {
b.logger.Error("failed to query evm params", "error", err.Error())
return common.Hash{}, err
}
// Assemble transaction from fields
tx, err := msg.BuildTx(b.clientCtx.TxConfig.NewTxBuilder(), res.Params.EvmDenom)
if err != nil {
b.logger.Error("build cosmos tx failed", "error", err.Error())
return common.Hash{}, err
}
// Encode transaction by default Tx encoder
txEncoder := b.clientCtx.TxConfig.TxEncoder()
txBytes, err := txEncoder(tx)
if err != nil {
b.logger.Error("failed to encode eth tx using default encoder", "error", err.Error())
return common.Hash{}, err
}
ethTx := msg.AsTransaction()
// check the local node config in case unprotected txs are disabled
if !b.UnprotectedAllowed() && !ethTx.Protected() {
// Ensure only eip155 signed transactions are submitted if EIP155Required is set.
return common.Hash{}, errors.New("only replay-protected (EIP-155) transactions allowed over RPC")
}
txHash := ethTx.Hash()
// Broadcast transaction in sync mode (default)
// NOTE: If error is encountered on the node, the broadcast will not return an error
syncCtx := b.clientCtx.WithBroadcastMode(flags.BroadcastSync)
rsp, err := syncCtx.BroadcastTx(txBytes)
if rsp != nil && rsp.Code != 0 {
err = sdkerrors.ABCIError(rsp.Codespace, rsp.Code, rsp.RawLog)
}
if err != nil {
b.logger.Error("failed to broadcast tx", "error", err.Error())
return txHash, err
}
// Return transaction hash
return txHash, nil
}
// Sign signs the provided data using the private key of address via Geth's signature standard.
func (b *Backend) Sign(address common.Address, data hexutil.Bytes) (hexutil.Bytes, error) {
from := sdk.AccAddress(address.Bytes())
_, err := b.clientCtx.Keyring.KeyByAddress(from)
if err != nil {
b.logger.Error("failed to find key in keyring", "address", address.String())
return nil, fmt.Errorf("%s; %s", keystore.ErrNoMatch, err.Error())
}
// Sign the requested hash with the wallet
signature, _, err := b.clientCtx.Keyring.SignByAddress(from, data)
if err != nil {
b.logger.Error("keyring.SignByAddress failed", "address", address.Hex())
return nil, err
}
signature[crypto.RecoveryIDOffset] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
return signature, nil
}
// SignTypedData signs EIP-712 conformant typed data
func (b *Backend) SignTypedData(address common.Address, typedData apitypes.TypedData) (hexutil.Bytes, error) {
from := sdk.AccAddress(address.Bytes())
_, err := b.clientCtx.Keyring.KeyByAddress(from)
if err != nil {
b.logger.Error("failed to find key in keyring", "address", address.String())
return nil, fmt.Errorf("%s; %s", keystore.ErrNoMatch, err.Error())
}
sigHash, err := eip712.ComputeTypedDataHash(typedData)
if err != nil {
return nil, err
}
// Sign the requested hash with the wallet
signature, _, err := b.clientCtx.Keyring.SignByAddress(from, sigHash)
if err != nil {
b.logger.Error("keyring.SignByAddress failed", "address", address.Hex())
return nil, err
}
signature[crypto.RecoveryIDOffset] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
return signature, nil
}

181
rpc/backend/tracing.go Normal file
View File

@ -0,0 +1,181 @@
package backend
import (
"encoding/json"
"fmt"
"github.com/ethereum/go-ethereum/common"
rpctypes "github.com/evmos/ethermint/rpc/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
)
// TraceTransaction returns the structured logs created during the execution of EVM
// and returns them as a JSON object.
func (b *Backend) TraceTransaction(hash common.Hash, config *evmtypes.TraceConfig) (interface{}, error) {
// Get transaction by hash
transaction, err := b.GetTxByEthHash(hash)
if err != nil {
b.logger.Debug("tx not found", "hash", hash)
return nil, err
}
// check if block number is 0
if transaction.Height == 0 {
return nil, errors.New("genesis is not traceable")
}
blk, err := b.GetTendermintBlockByNumber(rpctypes.BlockNumber(transaction.Height))
if err != nil {
b.logger.Debug("block not found", "height", transaction.Height)
return nil, err
}
parsedTxs, err := rpctypes.ParseTxResult(&transaction.TxResult)
if err != nil {
return nil, fmt.Errorf("failed to parse tx events: %s", hash.Hex())
}
parsedTx := parsedTxs.GetTxByHash(hash)
if parsedTx == nil {
return nil, fmt.Errorf("ethereum tx not found in msgs: %s", hash.Hex())
}
// check tx index is not out of bound
if uint32(len(blk.Block.Txs)) < transaction.Index {
b.logger.Debug("tx index out of bounds", "index", transaction.Index, "hash", hash.String(), "height", blk.Block.Height)
return nil, fmt.Errorf("transaction not included in block %v", blk.Block.Height)
}
var predecessors []*evmtypes.MsgEthereumTx
for _, txBz := range blk.Block.Txs[:transaction.Index] {
tx, err := b.clientCtx.TxConfig.TxDecoder()(txBz)
if err != nil {
b.logger.Debug("failed to decode transaction in block", "height", blk.Block.Height, "error", err.Error())
continue
}
for _, msg := range tx.GetMsgs() {
ethMsg, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
predecessors = append(predecessors, ethMsg)
}
}
tx, err := b.clientCtx.TxConfig.TxDecoder()(transaction.Tx)
if err != nil {
b.logger.Debug("tx not found", "hash", hash)
return nil, err
}
// add predecessor messages in current cosmos tx
for i := 0; i < parsedTx.MsgIndex; i++ {
ethMsg, ok := tx.GetMsgs()[i].(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
predecessors = append(predecessors, ethMsg)
}
ethMessage, ok := tx.GetMsgs()[parsedTx.MsgIndex].(*evmtypes.MsgEthereumTx)
if !ok {
b.logger.Debug("invalid transaction type", "type", fmt.Sprintf("%T", tx))
return nil, fmt.Errorf("invalid transaction type %T", tx)
}
traceTxRequest := evmtypes.QueryTraceTxRequest{
Msg: ethMessage,
Predecessors: predecessors,
BlockNumber: blk.Block.Height,
BlockTime: blk.Block.Time,
BlockHash: common.Bytes2Hex(blk.BlockID.Hash),
}
if config != nil {
traceTxRequest.TraceConfig = config
}
// minus one to get the context of block beginning
contextHeight := transaction.Height - 1
if contextHeight < 1 {
// 0 is a special value in `ContextWithHeight`
contextHeight = 1
}
traceResult, err := b.queryClient.TraceTx(rpctypes.ContextWithHeight(contextHeight), &traceTxRequest)
if err != nil {
return nil, err
}
// Response format is unknown due to custom tracer config param
// More information can be found here https://geth.ethereum.org/docs/dapp/tracing-filtered
var decodedResult interface{}
err = json.Unmarshal(traceResult.Data, &decodedResult)
if err != nil {
return nil, err
}
return decodedResult, nil
}
// traceBlock configures a new tracer according to the provided configuration, and
// executes all the transactions contained within. The return value will be one item
// per transaction, dependent on the requested tracer.
func (b *Backend) TraceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfig, block *tmrpctypes.ResultBlock) ([]*evmtypes.TxTraceResult, error) {
txs := block.Block.Txs
txsLength := len(txs)
if txsLength == 0 {
// If there are no transactions return empty array
return []*evmtypes.TxTraceResult{}, nil
}
txDecoder := b.clientCtx.TxConfig.TxDecoder()
var txsMessages []*evmtypes.MsgEthereumTx
for i, tx := range txs {
decodedTx, err := txDecoder(tx)
if err != nil {
b.logger.Error("failed to decode transaction", "hash", txs[i].Hash(), "error", err.Error())
continue
}
for _, msg := range decodedTx.GetMsgs() {
ethMessage, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
// Just considers Ethereum transactions
continue
}
txsMessages = append(txsMessages, ethMessage)
}
}
// minus one to get the context at the beginning of the block
contextHeight := height - 1
if contextHeight < 1 {
// 0 is a special value for `ContextWithHeight`.
contextHeight = 1
}
ctxWithHeight := rpctypes.ContextWithHeight(int64(contextHeight))
traceBlockRequest := &evmtypes.QueryTraceBlockRequest{
Txs: txsMessages,
TraceConfig: config,
BlockNumber: block.Block.Height,
BlockTime: block.Block.Time,
BlockHash: common.Bytes2Hex(block.BlockID.Hash),
}
res, err := b.queryClient.TraceBlock(ctxWithHeight, traceBlockRequest)
if err != nil {
return nil, err
}
decodedResults := make([]*evmtypes.TxTraceResult, txsLength)
if err := json.Unmarshal(res.Data, &decodedResults); err != nil {
return nil, err
}
return decodedResults, nil
}

393
rpc/backend/tx_info.go Normal file
View File

@ -0,0 +1,393 @@
package backend
import (
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
rpctypes "github.com/evmos/ethermint/rpc/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/pkg/errors"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
)
// GetTransactionByHash returns the Ethereum format transaction identified by Ethereum transaction hash
func (b *Backend) GetTransactionByHash(txHash common.Hash) (*rpctypes.RPCTransaction, error) {
res, err := b.GetTxByEthHash(txHash)
hexTx := txHash.Hex()
if err != nil {
// try to find tx in mempool
txs, err := b.PendingTransactions()
if err != nil {
b.logger.Debug("tx not found", "hash", hexTx, "error", err.Error())
return nil, nil
}
for _, tx := range txs {
msg, err := evmtypes.UnwrapEthereumMsg(tx, txHash)
if err != nil {
// not ethereum tx
continue
}
if msg.Hash == hexTx {
rpctx, err := rpctypes.NewTransactionFromMsg(
msg,
common.Hash{},
uint64(0),
uint64(0),
nil,
)
if err != nil {
return nil, err
}
return rpctx, nil
}
}
b.logger.Debug("tx not found", "hash", hexTx)
return nil, nil
}
if !TxSuccessOrExceedsBlockGasLimit(&res.TxResult) {
return nil, errors.New("invalid ethereum tx")
}
parsedTxs, err := rpctypes.ParseTxResult(&res.TxResult)
if err != nil {
return nil, fmt.Errorf("failed to parse tx events: %s", hexTx)
}
parsedTx := parsedTxs.GetTxByHash(txHash)
if parsedTx == nil {
return nil, fmt.Errorf("ethereum tx not found in msgs: %s", hexTx)
}
tx, err := b.clientCtx.TxConfig.TxDecoder()(res.Tx)
if err != nil {
return nil, err
}
// the `msgIndex` is inferred from tx events, should be within the bound.
msg, ok := tx.GetMsgs()[parsedTx.MsgIndex].(*evmtypes.MsgEthereumTx)
if !ok {
return nil, errors.New("invalid ethereum tx")
}
block, err := b.clientCtx.Client.Block(b.ctx, &res.Height)
if err != nil {
b.logger.Debug("block not found", "height", res.Height, "error", err.Error())
return nil, err
}
blockRes, err := b.GetTendermintBlockResultByNumber(&block.Block.Height)
if err != nil {
b.logger.Debug("block result not found", "height", block.Block.Height, "error", err.Error())
return nil, nil
}
if parsedTx.EthTxIndex == -1 {
// Fallback to find tx index by iterating all valid eth transactions
msgs := b.GetEthereumMsgsFromTendermintBlock(block, blockRes)
for i := range msgs {
if msgs[i].Hash == hexTx {
parsedTx.EthTxIndex = int64(i)
break
}
}
}
if parsedTx.EthTxIndex == -1 {
return nil, errors.New("can't find index of ethereum tx")
}
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle the error for pruned node.
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", blockRes.Height, "error", err)
}
return rpctypes.NewTransactionFromMsg(
msg,
common.BytesToHash(block.BlockID.Hash.Bytes()),
uint64(res.Height),
uint64(parsedTx.EthTxIndex),
baseFee,
)
}
// GetTransactionReceipt returns the transaction receipt identified by hash.
func (b *Backend) GetTransactionReceipt(hash common.Hash) (map[string]interface{}, error) {
hexTx := hash.Hex()
b.logger.Debug("eth_getTransactionReceipt", "hash", hexTx)
res, err := b.GetTxByEthHash(hash)
if err != nil {
b.logger.Debug("tx not found", "hash", hexTx, "error", err.Error())
return nil, nil
}
// don't ignore the txs which exceed block gas limit.
if !TxSuccessOrExceedsBlockGasLimit(&res.TxResult) {
return nil, nil
}
parsedTxs, err := rpctypes.ParseTxResult(&res.TxResult)
if err != nil {
return nil, fmt.Errorf("failed to parse tx events: %s, %v", hexTx, err)
}
parsedTx := parsedTxs.GetTxByHash(hash)
if parsedTx == nil {
return nil, fmt.Errorf("ethereum tx not found in msgs: %s", hexTx)
}
resBlock, err := b.clientCtx.Client.Block(b.ctx, &res.Height)
if err != nil {
b.logger.Debug("block not found", "height", res.Height, "error", err.Error())
return nil, nil
}
tx, err := b.clientCtx.TxConfig.TxDecoder()(res.Tx)
if err != nil {
b.logger.Debug("decoding failed", "error", err.Error())
return nil, fmt.Errorf("failed to decode tx: %w", err)
}
if res.TxResult.Code != 0 {
// tx failed, we should return gas limit as gas used, because that's how the fee get deducted.
for i := 0; i <= parsedTx.MsgIndex; i++ {
gasLimit := tx.GetMsgs()[i].(*evmtypes.MsgEthereumTx).GetGas()
parsedTxs.Txs[i].GasUsed = gasLimit
}
}
// the `msgIndex` is inferred from tx events, should be within the bound,
// and the tx is found by eth tx hash, so the msg type must be correct.
ethMsg := tx.GetMsgs()[parsedTx.MsgIndex].(*evmtypes.MsgEthereumTx)
txData, err := evmtypes.UnpackTxData(ethMsg.Data)
if err != nil {
b.logger.Error("failed to unpack tx data", "error", err.Error())
return nil, err
}
cumulativeGasUsed := uint64(0)
blockRes, err := b.GetTendermintBlockResultByNumber(&res.Height)
if err != nil {
b.logger.Debug("failed to retrieve block results", "height", res.Height, "error", err.Error())
return nil, nil
}
for i := 0; i < int(res.Index) && i < len(blockRes.TxsResults); i++ {
cumulativeGasUsed += uint64(blockRes.TxsResults[i].GasUsed)
}
cumulativeGasUsed += parsedTxs.AccumulativeGasUsed(parsedTx.MsgIndex)
// Get the transaction result from the log
var status hexutil.Uint
if res.TxResult.Code != 0 || parsedTx.Failed {
status = hexutil.Uint(ethtypes.ReceiptStatusFailed)
} else {
status = hexutil.Uint(ethtypes.ReceiptStatusSuccessful)
}
from, err := ethMsg.GetSender(b.chainID)
if err != nil {
return nil, err
}
// parse tx logs from events
logs, err := parsedTx.ParseTxLogs()
if err != nil {
b.logger.Debug("failed to parse logs", "hash", hexTx, "error", err.Error())
}
if parsedTx.EthTxIndex == -1 {
// Fallback to find tx index by iterating all valid eth transactions
msgs := b.GetEthereumMsgsFromTendermintBlock(resBlock, blockRes)
for i := range msgs {
if msgs[i].Hash == hexTx {
parsedTx.EthTxIndex = int64(i)
break
}
}
}
if parsedTx.EthTxIndex == -1 {
return nil, errors.New("can't find index of ethereum tx")
}
receipt := map[string]interface{}{
// Consensus fields: These fields are defined by the Yellow Paper
"status": status,
"cumulativeGasUsed": hexutil.Uint64(cumulativeGasUsed),
"logsBloom": ethtypes.BytesToBloom(ethtypes.LogsBloom(logs)),
"logs": logs,
// Implementation fields: These fields are added by geth when processing a transaction.
// They are stored in the chain database.
"transactionHash": hash,
"contractAddress": nil,
"gasUsed": hexutil.Uint64(parsedTx.GasUsed),
// Inclusion information: These fields provide information about the inclusion of the
// transaction corresponding to this receipt.
"blockHash": common.BytesToHash(resBlock.Block.Header.Hash()).Hex(),
"blockNumber": hexutil.Uint64(res.Height),
"transactionIndex": hexutil.Uint64(parsedTx.EthTxIndex),
// sender and receiver (contract or EOA) addreses
"from": from,
"to": txData.GetTo(),
}
if logs == nil {
receipt["logs"] = [][]*ethtypes.Log{}
}
// If the ContractAddress is 20 0x0 bytes, assume it is not a contract creation
if txData.GetTo() == nil {
receipt["contractAddress"] = crypto.CreateAddress(from, txData.GetNonce())
}
if dynamicTx, ok := txData.(*evmtypes.DynamicFeeTx); ok {
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// tolerate the error for pruned node.
b.logger.Error("fetch basefee failed, node is pruned?", "height", res.Height, "error", err)
} else {
receipt["effectiveGasPrice"] = hexutil.Big(*dynamicTx.EffectiveGasPrice(baseFee))
}
}
return receipt, nil
}
// GetTransactionByBlockHashAndIndex returns the transaction identified by hash and index.
func (b *Backend) GetTransactionByBlockHashAndIndex(hash common.Hash, idx hexutil.Uint) (*rpctypes.RPCTransaction, error) {
b.logger.Debug("eth_getTransactionByBlockHashAndIndex", "hash", hash.Hex(), "index", idx)
block, err := b.clientCtx.Client.BlockByHash(b.ctx, hash.Bytes())
if err != nil {
b.logger.Debug("block not found", "hash", hash.Hex(), "error", err.Error())
return nil, nil
}
if block.Block == nil {
b.logger.Debug("block not found", "hash", hash.Hex())
return nil, nil
}
return b.GetTransactionByBlockAndIndex(block, idx)
}
// GetTransactionByBlockNumberAndIndex returns the transaction identified by number and index.
func (b *Backend) GetTransactionByBlockNumberAndIndex(blockNum rpctypes.BlockNumber, idx hexutil.Uint) (*rpctypes.RPCTransaction, error) {
b.logger.Debug("eth_getTransactionByBlockNumberAndIndex", "number", blockNum, "index", idx)
block, err := b.GetTendermintBlockByNumber(blockNum)
if err != nil {
b.logger.Debug("block not found", "height", blockNum.Int64(), "error", err.Error())
return nil, nil
}
if block.Block == nil {
b.logger.Debug("block not found", "height", blockNum.Int64())
return nil, nil
}
return b.GetTransactionByBlockAndIndex(block, idx)
}
// GetTxByEthHash uses `/tx_query` to find transaction by ethereum tx hash
// TODO: Don't need to convert once hashing is fixed on Tendermint
// https://github.com/tendermint/tendermint/issues/6539
func (b *Backend) GetTxByEthHash(hash common.Hash) (*tmrpctypes.ResultTx, error) {
query := fmt.Sprintf("%s.%s='%s'", evmtypes.TypeMsgEthereumTx, evmtypes.AttributeKeyEthereumTxHash, hash.Hex())
resTxs, err := b.clientCtx.Client.TxSearch(b.ctx, query, false, nil, nil, "")
if err != nil {
return nil, err
}
if len(resTxs.Txs) == 0 {
return nil, errors.Errorf("ethereum tx not found for hash %s", hash.Hex())
}
return resTxs.Txs[0], nil
}
// GetTxByTxIndex uses `/tx_query` to find transaction by tx index of valid ethereum txs
func (b *Backend) GetTxByTxIndex(height int64, index uint) (*tmrpctypes.ResultTx, error) {
query := fmt.Sprintf("tx.height=%d AND %s.%s=%d",
height, evmtypes.TypeMsgEthereumTx,
evmtypes.AttributeKeyTxIndex, index,
)
resTxs, err := b.clientCtx.Client.TxSearch(b.ctx, query, false, nil, nil, "")
if err != nil {
return nil, err
}
if len(resTxs.Txs) == 0 {
return nil, errors.Errorf("ethereum tx not found for block %d index %d", height, index)
}
return resTxs.Txs[0], nil
}
// getTransactionByBlockAndIndex is the common code shared by `GetTransactionByBlockNumberAndIndex` and `GetTransactionByBlockHashAndIndex`.
func (b *Backend) GetTransactionByBlockAndIndex(block *tmrpctypes.ResultBlock, idx hexutil.Uint) (*rpctypes.RPCTransaction, error) {
blockRes, err := b.GetTendermintBlockResultByNumber(&block.Block.Height)
if err != nil {
return nil, nil
}
var msg *evmtypes.MsgEthereumTx
// try /tx_search first
res, err := b.GetTxByTxIndex(block.Block.Height, uint(idx))
if err == nil {
tx, err := b.clientCtx.TxConfig.TxDecoder()(res.Tx)
if err != nil {
b.logger.Debug("invalid ethereum tx", "height", block.Block.Header, "index", idx)
return nil, nil
}
parsedTxs, err := rpctypes.ParseTxResult(&res.TxResult)
if err != nil {
return nil, fmt.Errorf("failed to parse tx events: %d, %v", idx, err)
}
parsedTx := parsedTxs.GetTxByTxIndex(int(idx))
if parsedTx == nil {
return nil, fmt.Errorf("ethereum tx not found in msgs: %d", idx)
}
var ok bool
// msgIndex is inferred from tx events, should be within bound.
msg, ok = tx.GetMsgs()[parsedTx.MsgIndex].(*evmtypes.MsgEthereumTx)
if !ok {
b.logger.Debug("invalid ethereum tx", "height", block.Block.Header, "index", idx)
return nil, nil
}
} else {
i := int(idx)
ethMsgs := b.GetEthereumMsgsFromTendermintBlock(block, blockRes)
if i >= len(ethMsgs) {
b.logger.Debug("block txs index out of bound", "index", i)
return nil, nil
}
msg = ethMsgs[i]
}
baseFee, err := b.BaseFee(blockRes)
if err != nil {
// handle the error for pruned node.
b.logger.Error("failed to fetch Base Fee from prunned block. Check node prunning configuration", "height", block.Block.Height, "error", err)
}
return rpctypes.NewTransactionFromMsg(
msg,
common.BytesToHash(block.Block.Hash()),
uint64(block.Block.Height),
uint64(idx),
baseFee,
)
}

128
rpc/backend/utils.go
View File

@ -3,7 +3,6 @@ package backend
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"math/big"
"sort"
@ -44,133 +43,6 @@ func (s sortGasAndReward) Less(i, j int) bool {
return s[i].reward.Cmp(s[j].reward) < 0
}
// SetTxDefaults populates tx message with default values in case they are not
// provided on the args
func (b *Backend) SetTxDefaults(args evmtypes.TransactionArgs) (evmtypes.TransactionArgs, error) {
if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) {
return args, errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified")
}
head := b.CurrentHeader()
if head == nil {
return args, errors.New("latest header is nil")
}
// If user specifies both maxPriorityfee and maxFee, then we do not
// need to consult the chain for defaults. It's definitely a London tx.
if args.MaxPriorityFeePerGas == nil || args.MaxFeePerGas == nil {
// In this clause, user left some fields unspecified.
if head.BaseFee != nil && args.GasPrice == nil {
if args.MaxPriorityFeePerGas == nil {
tip, err := b.SuggestGasTipCap(head.BaseFee)
if err != nil {
return args, err
}
args.MaxPriorityFeePerGas = (*hexutil.Big)(tip)
}
if args.MaxFeePerGas == nil {
gasFeeCap := new(big.Int).Add(
(*big.Int)(args.MaxPriorityFeePerGas),
new(big.Int).Mul(head.BaseFee, big.NewInt(2)),
)
args.MaxFeePerGas = (*hexutil.Big)(gasFeeCap)
}
if args.MaxFeePerGas.ToInt().Cmp(args.MaxPriorityFeePerGas.ToInt()) < 0 {
return args, fmt.Errorf("maxFeePerGas (%v) < maxPriorityFeePerGas (%v)", args.MaxFeePerGas, args.MaxPriorityFeePerGas)
}
} else {
if args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil {
return args, errors.New("maxFeePerGas or maxPriorityFeePerGas specified but london is not active yet")
}
if args.GasPrice == nil {
price, err := b.SuggestGasTipCap(head.BaseFee)
if err != nil {
return args, err
}
if head.BaseFee != nil {
// The legacy tx gas price suggestion should not add 2x base fee
// because all fees are consumed, so it would result in a spiral
// upwards.
price.Add(price, head.BaseFee)
}
args.GasPrice = (*hexutil.Big)(price)
}
}
} else {
// Both maxPriorityfee and maxFee set by caller. Sanity-check their internal relation
if args.MaxFeePerGas.ToInt().Cmp(args.MaxPriorityFeePerGas.ToInt()) < 0 {
return args, fmt.Errorf("maxFeePerGas (%v) < maxPriorityFeePerGas (%v)", args.MaxFeePerGas, args.MaxPriorityFeePerGas)
}
}
if args.Value == nil {
args.Value = new(hexutil.Big)
}
if args.Nonce == nil {
// get the nonce from the account retriever
// ignore error in case tge account doesn't exist yet
nonce, _ := b.getAccountNonce(*args.From, true, 0, b.logger)
args.Nonce = (*hexutil.Uint64)(&nonce)
}
if args.Data != nil && args.Input != nil && !bytes.Equal(*args.Data, *args.Input) {
return args, errors.New("both 'data' and 'input' are set and not equal. Please use 'input' to pass transaction call data")
}
if args.To == nil {
// Contract creation
var input []byte
if args.Data != nil {
input = *args.Data
} else if args.Input != nil {
input = *args.Input
}
if len(input) == 0 {
return args, errors.New("contract creation without any data provided")
}
}
if args.Gas == nil {
// For backwards-compatibility reason, we try both input and data
// but input is preferred.
input := args.Input
if input == nil {
input = args.Data
}
callArgs := evmtypes.TransactionArgs{
From: args.From,
To: args.To,
Gas: args.Gas,
GasPrice: args.GasPrice,
MaxFeePerGas: args.MaxFeePerGas,
MaxPriorityFeePerGas: args.MaxPriorityFeePerGas,
Value: args.Value,
Data: input,
AccessList: args.AccessList,
}
blockNr := types.NewBlockNumber(big.NewInt(0))
estimated, err := b.EstimateGas(callArgs, &blockNr)
if err != nil {
return args, err
}
args.Gas = &estimated
b.logger.Debug("estimate gas usage automatically", "gas", args.Gas)
}
if args.ChainID == nil {
args.ChainID = (*hexutil.Big)(b.chainID)
}
return args, nil
}
// getAccountNonce returns the account nonce for the given account address.
// If the pending value is true, it will iterate over the mempool (pending)
// txs in order to compute and return the pending tx sequence.

193
rpc/namespaces/ethereum/debug/api.go
View File

@ -2,7 +2,6 @@ package debug
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
@ -14,11 +13,9 @@ import (
"time"
"github.com/davecgh/go-spew/spew"
tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/cosmos/cosmos-sdk/client"
stderrors "github.com/pkg/errors"
"github.com/cosmos/cosmos-sdk/server"
@ -43,27 +40,22 @@ type HandlerT struct {
// API is the collection of tracing APIs exposed over the private debugging endpoint.
type API struct {
ctx *server.Context
logger log.Logger
backend backend.EVMBackend
clientCtx client.Context
queryClient *rpctypes.QueryClient
handler *HandlerT
ctx *server.Context
logger log.Logger
backend backend.EVMBackend
handler *HandlerT
}
// NewAPI creates a new API definition for the tracing methods of the Ethereum service.
func NewAPI(
ctx *server.Context,
backend backend.EVMBackend,
clientCtx client.Context,
) *API {
return &API{
ctx: ctx,
logger: ctx.Logger.With("module", "debug"),
backend: backend,
clientCtx: clientCtx,
queryClient: rpctypes.NewQueryClient(clientCtx),
handler: new(HandlerT),
ctx: ctx,
logger: ctx.Logger.With("module", "debug"),
backend: backend,
handler: new(HandlerT),
}
}
@ -71,109 +63,7 @@ func NewAPI(
// and returns them as a JSON object.
func (a *API) TraceTransaction(hash common.Hash, config *evmtypes.TraceConfig) (interface{}, error) {
a.logger.Debug("debug_traceTransaction", "hash", hash)
// Get transaction by hash
transaction, err := a.backend.GetTxByEthHash(hash)
if err != nil {
a.logger.Debug("tx not found", "hash", hash)
return nil, err
}
// check if block number is 0
if transaction.Height == 0 {
return nil, errors.New("genesis is not traceable")
}
blk, err := a.backend.GetTendermintBlockByNumber(rpctypes.BlockNumber(transaction.Height))
if err != nil {
a.logger.Debug("block not found", "height", transaction.Height)
return nil, err
}
parsedTxs, err := rpctypes.ParseTxResult(&transaction.TxResult)
if err != nil {
return nil, fmt.Errorf("failed to parse tx events: %s", hash.Hex())
}
parsedTx := parsedTxs.GetTxByHash(hash)
if parsedTx == nil {
return nil, fmt.Errorf("ethereum tx not found in msgs: %s", hash.Hex())
}
// check tx index is not out of bound
if uint32(len(blk.Block.Txs)) < transaction.Index {
a.logger.Debug("tx index out of bounds", "index", transaction.Index, "hash", hash.String(), "height", blk.Block.Height)
return nil, fmt.Errorf("transaction not included in block %v", blk.Block.Height)
}
var predecessors []*evmtypes.MsgEthereumTx
for _, txBz := range blk.Block.Txs[:transaction.Index] {
tx, err := a.clientCtx.TxConfig.TxDecoder()(txBz)
if err != nil {
a.logger.Debug("failed to decode transaction in block", "height", blk.Block.Height, "error", err.Error())
continue
}
for _, msg := range tx.GetMsgs() {
ethMsg, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
predecessors = append(predecessors, ethMsg)
}
}
tx, err := a.clientCtx.TxConfig.TxDecoder()(transaction.Tx)
if err != nil {
a.logger.Debug("tx not found", "hash", hash)
return nil, err
}
// add predecessor messages in current cosmos tx
for i := 0; i < parsedTx.MsgIndex; i++ {
ethMsg, ok := tx.GetMsgs()[i].(*evmtypes.MsgEthereumTx)
if !ok {
continue
}
predecessors = append(predecessors, ethMsg)
}
ethMessage, ok := tx.GetMsgs()[parsedTx.MsgIndex].(*evmtypes.MsgEthereumTx)
if !ok {
a.logger.Debug("invalid transaction type", "type", fmt.Sprintf("%T", tx))
return nil, fmt.Errorf("invalid transaction type %T", tx)
}
traceTxRequest := evmtypes.QueryTraceTxRequest{
Msg: ethMessage,
Predecessors: predecessors,
BlockNumber: blk.Block.Height,
BlockTime: blk.Block.Time,
BlockHash: common.Bytes2Hex(blk.BlockID.Hash),
}
if config != nil {
traceTxRequest.TraceConfig = config
}
// minus one to get the context of block beginning
contextHeight := transaction.Height - 1
if contextHeight < 1 {
// 0 is a special value in `ContextWithHeight`
contextHeight = 1
}
traceResult, err := a.queryClient.TraceTx(rpctypes.ContextWithHeight(contextHeight), &traceTxRequest)
if err != nil {
return nil, err
}
// Response format is unknown due to custom tracer config param
// More information can be found here https://geth.ethereum.org/docs/dapp/tracing-filtered
var decodedResult interface{}
err = json.Unmarshal(traceResult.Data, &decodedResult)
if err != nil {
return nil, err
}
return decodedResult, nil
return a.backend.TraceTransaction(hash, config)
}
// TraceBlockByNumber returns the structured logs created during the execution of
@ -190,7 +80,7 @@ func (a *API) TraceBlockByNumber(height rpctypes.BlockNumber, config *evmtypes.T
return nil, err
}
return a.traceBlock(height, config, resBlock)
return a.backend.TraceBlock(rpctypes.BlockNumber(resBlock.Block.Height), config, resBlock)
}
// TraceBlockByHash returns the structured logs created during the execution of
@ -209,68 +99,7 @@ func (a *API) TraceBlockByHash(hash common.Hash, config *evmtypes.TraceConfig) (
return nil, errors.New("block not found")
}
return a.traceBlock(rpctypes.BlockNumber(resBlock.Block.Height), config, resBlock)
}
// traceBlock configures a new tracer according to the provided configuration, and
// executes all the transactions contained within. The return value will be one item
// per transaction, dependent on the requested tracer.
func (a *API) traceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfig, block *tmrpctypes.ResultBlock) ([]*evmtypes.TxTraceResult, error) {
txs := block.Block.Txs
txsLength := len(txs)
if txsLength == 0 {
// If there are no transactions return empty array
return []*evmtypes.TxTraceResult{}, nil
}
txDecoder := a.clientCtx.TxConfig.TxDecoder()
var txsMessages []*evmtypes.MsgEthereumTx
for i, tx := range txs {
decodedTx, err := txDecoder(tx)
if err != nil {
a.logger.Error("failed to decode transaction", "hash", txs[i].Hash(), "error", err.Error())
continue
}
for _, msg := range decodedTx.GetMsgs() {
ethMessage, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
// Just considers Ethereum transactions
continue
}
txsMessages = append(txsMessages, ethMessage)
}
}
// minus one to get the context at the beginning of the block
contextHeight := height - 1
if contextHeight < 1 {
// 0 is a special value for `ContextWithHeight`.
contextHeight = 1
}
ctxWithHeight := rpctypes.ContextWithHeight(int64(contextHeight))
traceBlockRequest := &evmtypes.QueryTraceBlockRequest{
Txs: txsMessages,
TraceConfig: config,
BlockNumber: block.Block.Height,
BlockTime: block.Block.Time,
BlockHash: common.Bytes2Hex(block.BlockID.Hash),
}
res, err := a.queryClient.TraceBlock(ctxWithHeight, traceBlockRequest)
if err != nil {
return nil, err
}
decodedResults := make([]*evmtypes.TxTraceResult, txsLength)
if err := json.Unmarshal(res.Data, &decodedResults); err != nil {
return nil, err
}
return decodedResults, nil
return a.backend.TraceBlock(rpctypes.BlockNumber(resBlock.Block.Height), config, resBlock)
}
// BlockProfile turns on goroutine profiling for nsec seconds and writes profile data to

1269
rpc/namespaces/ethereum/eth/api.go
View File

File diff suppressed because it is too large Load Diff

11
rpc/namespaces/ethereum/eth/filters/api.go
View File

@ -23,6 +23,17 @@ import (
evmtypes "github.com/evmos/ethermint/x/evm/types"
)
// FilterAPI gathers
type FilterAPI interface {
GetLogs(ctx context.Context, crit filters.FilterCriteria) ([]*ethtypes.Log, error)
GetFilterChanges(id rpc.ID) (interface{}, error)
GetFilterLogs(ctx context.Context, id rpc.ID) ([]*ethtypes.Log, error)
NewBlockFilter() rpc.ID
NewFilter(criteria filters.FilterCriteria) (rpc.ID, error)
NewPendingTransactionFilter() rpc.ID
UninstallFilter(id rpc.ID) bool
}
// Backend defines the methods requided by the PublicFilterAPI backend
type Backend interface {
GetBlockByNumber(blockNum types.BlockNumber, fullTx bool) (map[string]interface{}, error)

165
rpc/namespaces/ethereum/miner/api.go
View File

@ -1,187 +1,36 @@
package miner
import (
"math/big"
sdkmath "cosmossdk.io/math"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/client/tx"
"github.com/cosmos/cosmos-sdk/server"
sdkconfig "github.com/cosmos/cosmos-sdk/server/config"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
distributiontypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/tendermint/tendermint/libs/log"
tmtypes "github.com/tendermint/tendermint/types"
"github.com/evmos/ethermint/rpc/backend"
rpctypes "github.com/evmos/ethermint/rpc/types"
"github.com/evmos/ethermint/server/config"
)
// API is the private miner prefixed set of APIs in the Miner JSON-RPC spec.
type API struct {
ctx *server.Context
logger log.Logger
clientCtx client.Context
backend backend.EVMBackend
ctx *server.Context
logger log.Logger
backend backend.EVMBackend
}
// NewPrivateAPI creates an instance of the Miner API.
func NewPrivateAPI(
ctx *server.Context,
clientCtx client.Context,
backend backend.EVMBackend,
) *API {
return &API{
ctx: ctx,
clientCtx: clientCtx,
logger: ctx.Logger.With("api", "miner"),
backend: backend,
ctx: ctx,
logger: ctx.Logger.With("api", "miner"),
backend: backend,
}
}
// SetEtherbase sets the etherbase of the miner
func (api *API) SetEtherbase(etherbase common.Address) bool {
api.logger.Debug("miner_setEtherbase")
delAddr, err := api.backend.GetCoinbase()
if err != nil {
api.logger.Debug("failed to get coinbase address", "error", err.Error())
return false
}
withdrawAddr := sdk.AccAddress(etherbase.Bytes())
msg := distributiontypes.NewMsgSetWithdrawAddress(delAddr, withdrawAddr)
if err := msg.ValidateBasic(); err != nil {
api.logger.Debug("tx failed basic validation", "error", err.Error())
return false
}
// Assemble transaction from fields
builder, ok := api.clientCtx.TxConfig.NewTxBuilder().(authtx.ExtensionOptionsTxBuilder)
if !ok {
api.logger.Debug("clientCtx.TxConfig.NewTxBuilder returns unsupported builder", "error", err.Error())
return false
}
err = builder.SetMsgs(msg)
if err != nil {
api.logger.Error("builder.SetMsgs failed", "error", err.Error())
return false
}
// Fetch minimun gas price to calculate fees using the configuration.
appConf := config.GetConfig(api.ctx.Viper)
minGasPrices := appConf.GetMinGasPrices()
if len(minGasPrices) == 0 || minGasPrices.Empty() {
api.logger.Debug("the minimun fee is not set")
return false
}
minGasPriceValue := minGasPrices[0].Amount
denom := minGasPrices[0].Denom
delCommonAddr := common.BytesToAddress(delAddr.Bytes())
nonce, err := api.backend.GetTransactionCount(delCommonAddr, rpctypes.EthPendingBlockNumber)
if err != nil {
api.logger.Debug("failed to get nonce", "error", err.Error())
return false
}
txFactory := tx.Factory{}
txFactory = txFactory.
WithChainID(api.clientCtx.ChainID).
WithKeybase(api.clientCtx.Keyring).
WithTxConfig(api.clientCtx.TxConfig).
WithSequence(uint64(*nonce)).
WithGasAdjustment(1.25)
_, gas, err := tx.CalculateGas(api.clientCtx, txFactory, msg)
if err != nil {
api.logger.Debug("failed to calculate gas", "error", err.Error())
return false
}
txFactory = txFactory.WithGas(gas)
value := new(big.Int).SetUint64(gas * minGasPriceValue.Ceil().TruncateInt().Uint64())
fees := sdk.Coins{sdk.NewCoin(denom, sdkmath.NewIntFromBigInt(value))}
builder.SetFeeAmount(fees)
builder.SetGasLimit(gas)
keyInfo, err := api.clientCtx.Keyring.KeyByAddress(delAddr)
if err != nil {
api.logger.Debug("failed to get the wallet address using the keyring", "error", err.Error())
return false
}
if err := tx.Sign(txFactory, keyInfo.Name, builder, false); err != nil {
api.logger.Debug("failed to sign tx", "error", err.Error())
return false
}
// Encode transaction by default Tx encoder
txEncoder := api.clientCtx.TxConfig.TxEncoder()
txBytes, err := txEncoder(builder.GetTx())
if err != nil {
api.logger.Debug("failed to encode eth tx using default encoder", "error", err.Error())
return false
}
tmHash := common.BytesToHash(tmtypes.Tx(txBytes).Hash())
// Broadcast transaction in sync mode (default)
// NOTE: If error is encountered on the node, the broadcast will not return an error
syncCtx := api.clientCtx.WithBroadcastMode(flags.BroadcastSync)
rsp, err := syncCtx.BroadcastTx(txBytes)
if rsp != nil && rsp.Code != 0 {
err = sdkerrors.ABCIError(rsp.Codespace, rsp.Code, rsp.RawLog)
}
if err != nil {
api.logger.Debug("failed to broadcast tx", "error", err.Error())
return false
}
api.logger.Debug("broadcasted tx to set miner withdraw address (etherbase)", "hash", tmHash.String())
return true
}
// SetGasPrice sets the minimum accepted gas price for the miner.
// NOTE: this function accepts only integers to have the same interface than go-eth
// to use float values, the gas prices must be configured using the configuration file
func (api *API) SetGasPrice(gasPrice hexutil.Big) bool {
api.logger.Info(api.ctx.Viper.ConfigFileUsed())
appConf := config.GetConfig(api.ctx.Viper)
var unit string
minGasPrices := appConf.GetMinGasPrices()
// fetch the base denom from the sdk Config in case it's not currently defined on the node config
if len(minGasPrices) == 0 || minGasPrices.Empty() {
var err error
unit, err = sdk.GetBaseDenom()
if err != nil {
api.logger.Debug("could not get the denom of smallest unit registered", "error", err.Error())
return false
}
} else {
unit = minGasPrices[0].Denom
}
c := sdk.NewDecCoin(unit, sdkmath.NewIntFromBigInt(gasPrice.ToInt()))
appConf.SetMinGasPrices(sdk.DecCoins{c})
sdkconfig.WriteConfigFile(api.ctx.Viper.ConfigFileUsed(), appConf)
api.logger.Info("Your configuration file was modified. Please RESTART your node.", "gas-price", c.String())
return true
return api.backend.SetEtherbase(etherbase)
}

80
rpc/namespaces/ethereum/personal/api.go
View File

@ -8,14 +8,11 @@ import (
"github.com/evmos/ethermint/rpc/backend"
"github.com/cosmos/cosmos-sdk/client"
"github.com/evmos/ethermint/crypto/hd"
ethermint "github.com/evmos/ethermint/types"
"github.com/tendermint/tendermint/libs/log"
sdkcrypto "github.com/cosmos/cosmos-sdk/crypto"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
sdk "github.com/cosmos/cosmos-sdk/types"
@ -24,13 +21,11 @@ import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/evmos/ethermint/crypto/ethsecp256k1"
evmtypes "github.com/evmos/ethermint/x/evm/types"
)
// PrivateAccountAPI is the personal_ prefixed set of APIs in the Web3 JSON-RPC spec.
type PrivateAccountAPI struct {
clientCtx client.Context
backend backend.EVMBackend
logger log.Logger
hdPathIter ethermint.HDPathIterator
@ -39,7 +34,6 @@ type PrivateAccountAPI struct {
// NewAPI creates an instance of the public Personal Eth API.
func NewAPI(
logger log.Logger,
clientCtx client.Context,
backend backend.EVMBackend,
) *PrivateAccountAPI {
cfg := sdk.GetConfig()
@ -51,7 +45,6 @@ func NewAPI(
}
return &PrivateAccountAPI{
clientCtx: clientCtx,
logger: logger.With("api", "personal"),
hdPathIter: iterator,
backend: backend,
@ -65,55 +58,13 @@ func NewAPI(
// NOTE: The key will be both armored and encrypted using the same passphrase.
func (api *PrivateAccountAPI) ImportRawKey(privkey, password string) (common.Address, error) {
api.logger.Debug("personal_importRawKey")
priv, err := crypto.HexToECDSA(privkey)
if err != nil {
return common.Address{}, err
}
privKey := &ethsecp256k1.PrivKey{Key: crypto.FromECDSA(priv)}
addr := sdk.AccAddress(privKey.PubKey().Address().Bytes())
ethereumAddr := common.BytesToAddress(addr)
// return if the key has already been imported
if _, err := api.clientCtx.Keyring.KeyByAddress(addr); err == nil {
return ethereumAddr, nil
}
// ignore error as we only care about the length of the list
list, _ := api.clientCtx.Keyring.List()
privKeyName := fmt.Sprintf("personal_%d", len(list))
armor := sdkcrypto.EncryptArmorPrivKey(privKey, password, ethsecp256k1.KeyType)
if err := api.clientCtx.Keyring.ImportPrivKey(privKeyName, armor, password); err != nil {
return common.Address{}, err
}
api.logger.Info("key successfully imported", "name", privKeyName, "address", ethereumAddr.String())
return ethereumAddr, nil
return api.backend.ImportRawKey(privkey, password)
}
// ListAccounts will return a list of addresses for accounts this node manages.
func (api *PrivateAccountAPI) ListAccounts() ([]common.Address, error) {
api.logger.Debug("personal_listAccounts")
addrs := []common.Address{}
list, err := api.clientCtx.Keyring.List()
if err != nil {
return nil, err
}
for _, info := range list {
pubKey, err := info.GetPubKey()
if err != nil {
return nil, err
}
addrs = append(addrs, common.BytesToAddress(pubKey.Address()))
}
return addrs, nil
return api.backend.ListAccounts()
}
// LockAccount will lock the account associated with the given address when it's unlocked.
@ -134,7 +85,7 @@ func (api *PrivateAccountAPI) NewAccount(password string) (common.Address, error
// create the mnemonic and save the account
hdPath := api.hdPathIter()
info, _, err := api.clientCtx.Keyring.NewMnemonic(name, keyring.English, hdPath.String(), password, hd.EthSecp256k1)
info, err := api.backend.NewMnemonic(name, keyring.English, hdPath.String(), password, hd.EthSecp256k1)
if err != nil {
return common.Address{}, err
}
@ -164,19 +115,6 @@ func (api *PrivateAccountAPI) UnlockAccount(_ context.Context, addr common.Addre
// able to decrypt the key it fails.
func (api *PrivateAccountAPI) SendTransaction(_ context.Context, args evmtypes.TransactionArgs, _ string) (common.Hash, error) {
api.logger.Debug("personal_sendTransaction", "address", args.To.String())
if args.From == nil {
return common.Hash{}, fmt.Errorf("from address cannot be nil in send transaction")
}
addr := sdk.AccAddress(args.From.Bytes())
// check if the key is on the keyring
_, err := api.clientCtx.Keyring.KeyByAddress(addr)
if err != nil {
return common.Hash{}, err
}
return api.backend.SendTransaction(args)
}
@ -191,17 +129,7 @@ func (api *PrivateAccountAPI) SendTransaction(_ context.Context, args evmtypes.T
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
func (api *PrivateAccountAPI) Sign(_ context.Context, data hexutil.Bytes, addr common.Address, _ string) (hexutil.Bytes, error) {
api.logger.Debug("personal_sign", "data", data, "address", addr.String())
cosmosAddr := sdk.AccAddress(addr.Bytes())
sig, _, err := api.clientCtx.Keyring.SignByAddress(cosmosAddr, accounts.TextHash(data))
if err != nil {
api.logger.Error("failed to sign with key", "data", data, "address", addr.String(), "error", err.Error())
return nil, err
}
sig[crypto.RecoveryIDOffset] += 27 // transform V from 0/1 to 27/28
return sig, nil
return api.backend.Sign(addr, data)
}
// EcRecover returns the address for the account that was used to create the signature.

4
rpc/websockets.go
View File

@ -5,7 +5,7 @@ import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"io"
"math/big"
"net"
"net/http"
@ -301,7 +301,7 @@ func (s *websocketsServer) tcpGetAndSendResponse(wsConn *wsConn, mb []byte) erro
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
body, err := io.ReadAll(resp.Body)
if err != nil {
return errors.Wrap(err, "could not read body from response")
}