381 lines
9.0 KiB
Go
381 lines
9.0 KiB
Go
package bridge
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"math/big"
|
|
"net/http"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum"
|
|
"github.com/ethereum/go-ethereum/accounts/abi"
|
|
"github.com/ethereum/go-ethereum/accounts/abi/bind"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
|
ethTypes "github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/status-im/status-go/account"
|
|
"github.com/status-im/status-go/contracts/celer"
|
|
"github.com/status-im/status-go/eth-node/types"
|
|
"github.com/status-im/status-go/rpc"
|
|
|
|
"github.com/status-im/status-go/params"
|
|
"github.com/status-im/status-go/services/wallet/bridge/cbridge"
|
|
"github.com/status-im/status-go/services/wallet/token"
|
|
"github.com/status-im/status-go/transactions"
|
|
)
|
|
|
|
const baseURL = "https://cbridge-prod2.celer.app"
|
|
const testBaseURL = "https://cbridge-v2-test.celer.network"
|
|
|
|
type CBridgeTxArgs struct {
|
|
transactions.SendTxArgs
|
|
ChainID uint64 `json:"chainId"`
|
|
Symbol string `json:"symbol"`
|
|
Recipient common.Address `json:"recipient"`
|
|
Amount *hexutil.Big `json:"amount"`
|
|
}
|
|
|
|
type CBridge struct {
|
|
rpcClient *rpc.Client
|
|
transactor *transactions.Transactor
|
|
tokenManager *token.Manager
|
|
prodTransferConfig *cbridge.GetTransferConfigsResponse
|
|
testTransferConfig *cbridge.GetTransferConfigsResponse
|
|
}
|
|
|
|
func NewCbridge(rpcClient *rpc.Client, transactor *transactions.Transactor, tokenManager *token.Manager) *CBridge {
|
|
return &CBridge{
|
|
rpcClient: rpcClient,
|
|
transactor: transactor,
|
|
tokenManager: tokenManager,
|
|
}
|
|
}
|
|
|
|
func (s *CBridge) Name() string {
|
|
return "CBridge"
|
|
}
|
|
|
|
func (s *CBridge) estimateAmt(from, to *params.Network, amountIn *big.Int, symbol string) (*cbridge.EstimateAmtResponse, error) {
|
|
client := &http.Client{
|
|
Timeout: time.Second * 5,
|
|
}
|
|
base := baseURL
|
|
if from.IsTest {
|
|
base = testBaseURL
|
|
}
|
|
url := fmt.Sprintf(
|
|
"%s/v2/estimateAmt?src_chain_id=%d&dst_chain_id=%d&token_symbol=%s&amt=%s&usr_addr=0xaa47c83316edc05cf9ff7136296b026c5de7eccd&slippage_tolerance=500",
|
|
base,
|
|
from.ChainID,
|
|
to.ChainID,
|
|
symbol,
|
|
amountIn.String(),
|
|
)
|
|
|
|
req, err := http.NewRequest(http.MethodGet, url, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer func() {
|
|
if err := resp.Body.Close(); err != nil {
|
|
fmt.Println("failed to close cbridge request body", "err", err)
|
|
}
|
|
}()
|
|
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var res cbridge.EstimateAmtResponse
|
|
err = json.Unmarshal(body, &res)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &res, nil
|
|
}
|
|
|
|
func (s *CBridge) getTransferConfig(isTest bool) (*cbridge.GetTransferConfigsResponse, error) {
|
|
if !isTest && s.prodTransferConfig != nil {
|
|
return s.prodTransferConfig, nil
|
|
}
|
|
|
|
if isTest && s.testTransferConfig != nil {
|
|
return s.testTransferConfig, nil
|
|
}
|
|
|
|
client := &http.Client{
|
|
Timeout: time.Second * 5,
|
|
}
|
|
base := baseURL
|
|
if isTest {
|
|
base = testBaseURL
|
|
}
|
|
url := fmt.Sprintf("%s/v2/getTransferConfigs", base)
|
|
|
|
req, err := http.NewRequest(http.MethodGet, url, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer func() {
|
|
if err := resp.Body.Close(); err != nil {
|
|
fmt.Println("failed to close cbridge request body", "err", err)
|
|
}
|
|
}()
|
|
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var res cbridge.GetTransferConfigsResponse
|
|
err = json.Unmarshal(body, &res)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if isTest {
|
|
s.testTransferConfig = &res
|
|
} else {
|
|
s.prodTransferConfig = &res
|
|
}
|
|
return &res, nil
|
|
}
|
|
|
|
func (s *CBridge) Can(from, to *params.Network, token *token.Token, balance *big.Int) (bool, error) {
|
|
if from.ChainID == to.ChainID {
|
|
return false, nil
|
|
}
|
|
|
|
transferConfig, err := s.getTransferConfig(from.IsTest)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if transferConfig.Err != nil {
|
|
return false, errors.New(transferConfig.Err.Msg)
|
|
}
|
|
|
|
var fromAvailable *cbridge.Chain
|
|
var toAvailable *cbridge.Chain
|
|
for _, chain := range transferConfig.Chains {
|
|
if uint64(chain.GetId()) == from.ChainID {
|
|
fromAvailable = chain
|
|
}
|
|
|
|
if uint64(chain.GetId()) == to.ChainID {
|
|
toAvailable = chain
|
|
}
|
|
}
|
|
|
|
if fromAvailable == nil || toAvailable == nil {
|
|
return false, nil
|
|
}
|
|
|
|
found := false
|
|
if _, ok := transferConfig.ChainToken[fromAvailable.GetId()]; !ok {
|
|
return false, nil
|
|
}
|
|
|
|
for _, tokenInfo := range transferConfig.ChainToken[fromAvailable.GetId()].Token {
|
|
if tokenInfo.Token.Symbol == token.Symbol {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
return false, nil
|
|
}
|
|
|
|
found = false
|
|
for _, tokenInfo := range transferConfig.ChainToken[toAvailable.GetId()].Token {
|
|
if tokenInfo.Token.Symbol == token.Symbol {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
return false, nil
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
func (s *CBridge) CalculateFees(from, to *params.Network, token *token.Token, amountIn *big.Int, nativeTokenPrice, tokenPrice float64, gasPrice *big.Float) (*big.Int, *big.Int, error) {
|
|
amt, err := s.estimateAmt(from, to, amountIn, token.Symbol)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
baseFee, _ := new(big.Int).SetString(amt.BaseFee, 10)
|
|
percFee, _ := new(big.Int).SetString(amt.PercFee, 10)
|
|
|
|
return big.NewInt(0), new(big.Int).Add(baseFee, percFee), nil
|
|
}
|
|
|
|
func (s *CBridge) EstimateGas(fromNetwork *params.Network, toNetwork *params.Network, from common.Address, to common.Address, token *token.Token, amountIn *big.Int) (uint64, error) {
|
|
var input []byte
|
|
value := new(big.Int)
|
|
|
|
abi, err := abi.JSON(strings.NewReader(celer.CelerABI))
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
if token.IsNative() {
|
|
input, err = abi.Pack("sendNative",
|
|
to,
|
|
amountIn,
|
|
toNetwork.ChainID,
|
|
uint64(time.Now().UnixMilli()),
|
|
500,
|
|
)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
} else {
|
|
input, err = abi.Pack("send",
|
|
to,
|
|
token.Address,
|
|
amountIn,
|
|
toNetwork.ChainID,
|
|
uint64(time.Now().UnixMilli()),
|
|
500,
|
|
)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
|
|
contractAddress := s.GetContractAddress(fromNetwork, nil)
|
|
if contractAddress == nil {
|
|
return 0, errors.New("contract not found")
|
|
}
|
|
|
|
ethClient, err := s.rpcClient.EthClient(fromNetwork.ChainID)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
ctx := context.Background()
|
|
|
|
if code, err := ethClient.PendingCodeAt(ctx, *contractAddress); err != nil {
|
|
return 0, err
|
|
} else if len(code) == 0 {
|
|
return 0, bind.ErrNoCode
|
|
}
|
|
|
|
msg := ethereum.CallMsg{
|
|
From: from,
|
|
To: contractAddress,
|
|
Value: value,
|
|
Data: input,
|
|
}
|
|
|
|
estimation, err := ethClient.EstimateGas(ctx, msg)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
increasedEstimation := float64(estimation) * IncreaseEstimatedGasFactor
|
|
return uint64(increasedEstimation), nil
|
|
}
|
|
|
|
func (s *CBridge) GetContractAddress(network *params.Network, token *token.Token) *common.Address {
|
|
transferConfig, err := s.getTransferConfig(network.IsTest)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
if transferConfig.Err != nil {
|
|
return nil
|
|
}
|
|
|
|
for _, chain := range transferConfig.Chains {
|
|
if uint64(chain.Id) == network.ChainID {
|
|
addr := common.HexToAddress(chain.ContractAddr)
|
|
return &addr
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *CBridge) sendOrBuild(sendArgs *TransactionBridge, signerFn bind.SignerFn) (*ethTypes.Transaction, error) {
|
|
fromNetwork := s.rpcClient.NetworkManager.Find(sendArgs.ChainID)
|
|
if fromNetwork == nil {
|
|
return nil, errors.New("network not found")
|
|
}
|
|
token := s.tokenManager.FindToken(fromNetwork, sendArgs.CbridgeTx.Symbol)
|
|
if token == nil {
|
|
return nil, errors.New("token not found")
|
|
}
|
|
addrs := s.GetContractAddress(fromNetwork, nil)
|
|
if addrs == nil {
|
|
return nil, errors.New("contract not found")
|
|
}
|
|
|
|
backend, err := s.rpcClient.EthClient(sendArgs.ChainID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
contract, err := celer.NewCeler(*addrs, backend)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
txOpts := sendArgs.CbridgeTx.ToTransactOpts(signerFn)
|
|
if token.IsNative() {
|
|
return contract.SendNative(
|
|
txOpts,
|
|
sendArgs.CbridgeTx.Recipient,
|
|
(*big.Int)(sendArgs.CbridgeTx.Amount),
|
|
sendArgs.CbridgeTx.ChainID,
|
|
uint64(time.Now().UnixMilli()),
|
|
500,
|
|
)
|
|
}
|
|
|
|
return contract.Send(
|
|
txOpts,
|
|
sendArgs.CbridgeTx.Recipient,
|
|
token.Address,
|
|
(*big.Int)(sendArgs.CbridgeTx.Amount),
|
|
sendArgs.CbridgeTx.ChainID,
|
|
uint64(time.Now().UnixMilli()),
|
|
500,
|
|
)
|
|
}
|
|
|
|
func (s *CBridge) Send(sendArgs *TransactionBridge, verifiedAccount *account.SelectedExtKey) (types.Hash, error) {
|
|
tx, err := s.sendOrBuild(sendArgs, getSigner(sendArgs.ChainID, sendArgs.CbridgeTx.From, verifiedAccount))
|
|
if err != nil {
|
|
return types.HexToHash(""), err
|
|
}
|
|
|
|
return types.Hash(tx.Hash()), nil
|
|
}
|
|
|
|
func (s *CBridge) BuildTransaction(sendArgs *TransactionBridge) (*ethTypes.Transaction, transactions.UnlockNonceFunc, error) {
|
|
tx, err := s.sendOrBuild(sendArgs, nil)
|
|
return tx, nil, err
|
|
}
|
|
|
|
func (s *CBridge) CalculateAmountOut(from, to *params.Network, amountIn *big.Int, symbol string) (*big.Int, error) {
|
|
amt, err := s.estimateAmt(from, to, amountIn, symbol)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if amt.Err != nil {
|
|
return nil, err
|
|
}
|
|
amountOut, _ := new(big.Int).SetString(amt.EqValueTokenAmt, 10)
|
|
return amountOut, nil
|
|
}
|