status-go/services/wallet/transfer/transaction.go

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package transfer
import (
"context"
"database/sql"
"encoding/hex"
"errors"
"fmt"
"math/big"
"strings"
"time"
ethTypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
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"github.com/status-im/status-go/account"
"github.com/status-im/status-go/eth-node/crypto"
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"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/multiaccounts/accounts"
"github.com/status-im/status-go/params"
"github.com/status-im/status-go/services/wallet/bigint"
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"github.com/status-im/status-go/services/wallet/bridge"
wallet_common "github.com/status-im/status-go/services/wallet/common"
"github.com/status-im/status-go/services/wallet/walletevent"
"github.com/status-im/status-go/signal"
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"github.com/status-im/status-go/transactions"
)
type MultiTransactionIDType int64
const (
NoMultiTransactionID = MultiTransactionIDType(0)
// EventMTTransactionUpdate is emitted when a multi-transaction is updated (added or deleted)
EventMTTransactionUpdate walletevent.EventType = "multi-transaction-update"
)
type SignatureDetails struct {
R string `json:"r"`
S string `json:"s"`
V string `json:"v"`
}
type TransactionDescription struct {
chainID uint64
builtTx *ethTypes.Transaction
signature []byte
unlock transactions.UnlockNonceFunc
}
type TransactionManager struct {
db *sql.DB
gethManager *account.GethManager
transactor *transactions.Transactor
config *params.NodeConfig
accountsDB *accounts.Database
pendingTracker *transactions.PendingTxTracker
eventFeed *event.Feed
multiTransactionForKeycardSigning *MultiTransaction
transactionsBridgeData []*bridge.TransactionBridge
transactionsForKeycardSingning map[common.Hash]*TransactionDescription
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}
func NewTransactionManager(
db *sql.DB,
gethManager *account.GethManager,
transactor *transactions.Transactor,
config *params.NodeConfig,
accountsDB *accounts.Database,
pendingTxManager *transactions.PendingTxTracker,
eventFeed *event.Feed,
) *TransactionManager {
return &TransactionManager{
db: db,
gethManager: gethManager,
transactor: transactor,
config: config,
accountsDB: accountsDB,
pendingTracker: pendingTxManager,
eventFeed: eventFeed,
}
}
var (
emptyHash = common.Hash{}
)
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type MultiTransactionType uint8
const (
MultiTransactionSend = iota
MultiTransactionSwap
MultiTransactionBridge
)
type MultiTransaction struct {
ID uint `json:"id"`
Timestamp uint64 `json:"timestamp"`
FromNetworkID uint64 `json:"fromNetworkID"`
ToNetworkID uint64 `json:"toNetworkID"`
FromTxHash common.Hash `json:"fromTxHash"`
ToTxHash common.Hash `json:"toTxHash"`
FromAddress common.Address `json:"fromAddress"`
ToAddress common.Address `json:"toAddress"`
FromAsset string `json:"fromAsset"`
ToAsset string `json:"toAsset"`
FromAmount *hexutil.Big `json:"fromAmount"`
ToAmount *hexutil.Big `json:"toAmount"`
Type MultiTransactionType `json:"type"`
CrossTxID string
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}
type MultiTransactionCommand struct {
FromAddress common.Address `json:"fromAddress"`
ToAddress common.Address `json:"toAddress"`
FromAsset string `json:"fromAsset"`
ToAsset string `json:"toAsset"`
FromAmount *hexutil.Big `json:"fromAmount"`
Type MultiTransactionType `json:"type"`
}
type MultiTransactionCommandResult struct {
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ID int64 `json:"id"`
Hashes map[uint64][]types.Hash `json:"hashes"`
}
type TransactionIdentity struct {
ChainID wallet_common.ChainID `json:"chainId"`
Hash common.Hash `json:"hash"`
Address common.Address `json:"address"`
}
const multiTransactionColumns = "from_network_id, from_tx_hash, from_address, from_asset, from_amount, to_network_id, to_tx_hash, to_address, to_asset, to_amount, type, cross_tx_id, timestamp"
const selectMultiTransactionColumns = "COALESCE(from_network_id, 0), from_tx_hash, from_address, from_asset, from_amount, COALESCE(to_network_id, 0), to_tx_hash, to_address, to_asset, to_amount, type, cross_tx_id, timestamp"
func rowsToMultiTransactions(rows *sql.Rows) ([]*MultiTransaction, error) {
var multiTransactions []*MultiTransaction
for rows.Next() {
multiTransaction := &MultiTransaction{}
var fromAmountDB, toAmountDB sql.NullString
var fromTxHash, toTxHash sql.RawBytes
err := rows.Scan(
&multiTransaction.ID,
&multiTransaction.FromNetworkID,
&fromTxHash,
&multiTransaction.FromAddress,
&multiTransaction.FromAsset,
&fromAmountDB,
&multiTransaction.ToNetworkID,
&toTxHash,
&multiTransaction.ToAddress,
&multiTransaction.ToAsset,
&toAmountDB,
&multiTransaction.Type,
&multiTransaction.CrossTxID,
&multiTransaction.Timestamp,
)
if len(fromTxHash) > 0 {
multiTransaction.FromTxHash = common.BytesToHash(fromTxHash)
}
if len(toTxHash) > 0 {
multiTransaction.ToTxHash = common.BytesToHash(toTxHash)
}
if err != nil {
return nil, err
}
if fromAmountDB.Valid {
multiTransaction.FromAmount = new(hexutil.Big)
if _, ok := (*big.Int)(multiTransaction.FromAmount).SetString(fromAmountDB.String, 0); !ok {
return nil, errors.New("failed to convert fromAmountDB.String to big.Int: " + fromAmountDB.String)
}
}
if toAmountDB.Valid {
multiTransaction.ToAmount = new(hexutil.Big)
if _, ok := (*big.Int)(multiTransaction.ToAmount).SetString(toAmountDB.String, 0); !ok {
return nil, errors.New("failed to convert fromAmountDB.String to big.Int: " + toAmountDB.String)
}
}
multiTransactions = append(multiTransactions, multiTransaction)
}
return multiTransactions, nil
}
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func getMultiTransactionTimestamp(multiTransaction *MultiTransaction) uint64 {
if multiTransaction.Timestamp != 0 {
return multiTransaction.Timestamp
}
return uint64(time.Now().Unix())
}
// insertMultiTransaction inserts a multi transaction into the database and updates multi-transaction ID and timestamp
func insertMultiTransaction(db *sql.DB, multiTransaction *MultiTransaction) (MultiTransactionIDType, error) {
insert, err := db.Prepare(fmt.Sprintf(`INSERT INTO multi_transactions (%s)
VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, multiTransactionColumns))
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if err != nil {
return NoMultiTransactionID, err
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}
timestamp := getMultiTransactionTimestamp(multiTransaction)
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result, err := insert.Exec(
multiTransaction.FromNetworkID,
multiTransaction.FromTxHash,
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multiTransaction.FromAddress,
multiTransaction.FromAsset,
multiTransaction.FromAmount.String(),
multiTransaction.ToNetworkID,
multiTransaction.ToTxHash,
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multiTransaction.ToAddress,
multiTransaction.ToAsset,
multiTransaction.ToAmount.String(),
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multiTransaction.Type,
multiTransaction.CrossTxID,
timestamp,
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)
if err != nil {
return NoMultiTransactionID, err
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}
defer insert.Close()
multiTransactionID, err := result.LastInsertId()
multiTransaction.Timestamp = timestamp
multiTransaction.ID = uint(multiTransactionID)
return MultiTransactionIDType(multiTransactionID), err
}
func (tm *TransactionManager) InsertMultiTransaction(multiTransaction *MultiTransaction) (MultiTransactionIDType, error) {
return tm.insertMultiTransactionAndNotify(tm.db, multiTransaction, nil)
}
func (tm *TransactionManager) insertMultiTransactionAndNotify(db *sql.DB, multiTransaction *MultiTransaction, chainIDs []uint64) (MultiTransactionIDType, error) {
id, err := insertMultiTransaction(db, multiTransaction)
if err != nil {
publishMultiTransactionUpdatedEvent(db, multiTransaction, tm.eventFeed, chainIDs)
}
return id, err
}
// publishMultiTransactionUpdatedEvent notify listeners of new multi transaction (used in activity history)
func publishMultiTransactionUpdatedEvent(db *sql.DB, multiTransaction *MultiTransaction, eventFeed *event.Feed, chainIDs []uint64) {
publishFn := func(chainID uint64) {
eventFeed.Send(walletevent.Event{
Type: EventMTTransactionUpdate,
ChainID: chainID,
Accounts: []common.Address{multiTransaction.FromAddress, multiTransaction.ToAddress},
At: int64(multiTransaction.Timestamp),
})
}
if len(chainIDs) > 0 {
for _, chainID := range chainIDs {
publishFn(chainID)
}
} else {
publishFn(0)
}
}
func updateMultiTransaction(db *sql.DB, multiTransaction *MultiTransaction) error {
if MultiTransactionIDType(multiTransaction.ID) == NoMultiTransactionID {
return fmt.Errorf("no multitransaction ID")
}
update, err := db.Prepare(fmt.Sprintf(`REPLACE INTO multi_transactions (rowid, %s)
VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`, multiTransactionColumns))
if err != nil {
return err
}
timestamp := getMultiTransactionTimestamp(multiTransaction)
_, err = update.Exec(
multiTransaction.ID,
multiTransaction.FromNetworkID,
multiTransaction.FromTxHash,
multiTransaction.FromAddress,
multiTransaction.FromAsset,
multiTransaction.FromAmount.String(),
multiTransaction.ToNetworkID,
multiTransaction.ToTxHash,
multiTransaction.ToAddress,
multiTransaction.ToAsset,
multiTransaction.ToAmount.String(),
multiTransaction.Type,
multiTransaction.CrossTxID,
timestamp,
)
if err != nil {
return err
}
return update.Close()
}
func (tm *TransactionManager) UpdateMultiTransaction(multiTransaction *MultiTransaction) error {
return updateMultiTransaction(tm.db, multiTransaction)
}
// In case of keycard account, password should be empty
func (tm *TransactionManager) CreateMultiTransactionFromCommand(ctx context.Context, command *MultiTransactionCommand,
data []*bridge.TransactionBridge, bridges map[string]bridge.Bridge, password string) (*MultiTransactionCommandResult, error) {
multiTransaction := multiTransactionFromCommand(command)
chainIDs := make([]uint64, 0, len(data))
for _, tx := range data {
chainIDs = append(chainIDs, tx.ChainID)
}
if multiTransaction.Type == MultiTransactionSend && multiTransaction.FromNetworkID == 0 && len(chainIDs) == 1 {
multiTransaction.FromNetworkID = chainIDs[0]
}
multiTransactionID, err := tm.insertMultiTransactionAndNotify(tm.db, multiTransaction, chainIDs)
if err != nil {
return nil, err
}
multiTransaction.ID = uint(multiTransactionID)
if password == "" {
acc, err := tm.accountsDB.GetAccountByAddress(types.Address(multiTransaction.FromAddress))
if err != nil {
return nil, err
}
kp, err := tm.accountsDB.GetKeypairByKeyUID(acc.KeyUID)
if err != nil {
return nil, err
}
if !kp.MigratedToKeycard() {
return nil, fmt.Errorf("account being used is not migrated to a keycard, password is required")
}
tm.multiTransactionForKeycardSigning = multiTransaction
tm.transactionsBridgeData = data
hashes, err := tm.buildTransactions(bridges)
if err != nil {
return nil, err
}
signal.SendTransactionsForSigningEvent(hashes)
return nil, nil
}
hashes, err := tm.sendTransactions(multiTransaction, data, bridges, password)
if err != nil {
return nil, err
}
err = tm.storePendingTransactions(multiTransaction, hashes, data)
if err != nil {
return nil, err
}
return &MultiTransactionCommandResult{
ID: int64(multiTransactionID),
Hashes: hashes,
}, nil
}
func (tm *TransactionManager) ProceedWithTransactionsSignatures(ctx context.Context, signatures map[string]SignatureDetails) (*MultiTransactionCommandResult, error) {
if tm.multiTransactionForKeycardSigning == nil {
return nil, errors.New("no multi transaction to proceed with")
}
if len(tm.transactionsBridgeData) == 0 {
return nil, errors.New("no transactions bridge data to proceed with")
}
if len(tm.transactionsForKeycardSingning) == 0 {
return nil, errors.New("no transactions to proceed with")
}
if len(signatures) != len(tm.transactionsForKeycardSingning) {
return nil, errors.New("not all transactions have been signed")
}
// check if all transactions have been signed
for hash, desc := range tm.transactionsForKeycardSingning {
sigDetails, ok := signatures[hash.String()]
if !ok {
return nil, fmt.Errorf("missing signature for transaction %s", hash)
}
rBytes, _ := hex.DecodeString(sigDetails.R)
sBytes, _ := hex.DecodeString(sigDetails.S)
vByte := byte(0)
if sigDetails.V == "01" {
vByte = 1
}
desc.signature = make([]byte, crypto.SignatureLength)
copy(desc.signature[32-len(rBytes):32], rBytes)
copy(desc.signature[64-len(rBytes):64], sBytes)
desc.signature[64] = vByte
}
// send transactions
hashes := make(map[uint64][]types.Hash)
for _, desc := range tm.transactionsForKeycardSingning {
hash, err := tm.transactor.SendBuiltTransactionWithSignature(desc.chainID, desc.builtTx, desc.signature)
defer func() {
desc.unlock(err == nil, desc.builtTx.Nonce())
}()
if err != nil {
return nil, err
}
hashes[desc.chainID] = append(hashes[desc.chainID], hash)
}
err := tm.storePendingTransactions(tm.multiTransactionForKeycardSigning, hashes, tm.transactionsBridgeData)
if err != nil {
return nil, err
}
return &MultiTransactionCommandResult{
ID: int64(tm.multiTransactionForKeycardSigning.ID),
Hashes: hashes,
}, nil
}
func (tm *TransactionManager) storePendingTransactions(multiTransaction *MultiTransaction,
hashes map[uint64][]types.Hash, data []*bridge.TransactionBridge) error {
txs := createPendingTransactions(hashes, data, multiTransaction)
for _, tx := range txs {
err := tm.pendingTracker.StoreAndTrackPendingTx(tx)
if err != nil {
return err
}
}
return nil
}
func createPendingTransactions(hashes map[uint64][]types.Hash, data []*bridge.TransactionBridge,
multiTransaction *MultiTransaction) []*transactions.PendingTransaction {
txs := make([]*transactions.PendingTransaction, 0)
for _, tx := range data {
for _, hash := range hashes[tx.ChainID] {
pendingTransaction := &transactions.PendingTransaction{
Hash: common.Hash(hash),
Timestamp: uint64(time.Now().Unix()),
Value: bigint.BigInt{Int: multiTransaction.FromAmount.ToInt()},
From: common.Address(tx.From()),
To: common.Address(tx.To()),
Data: tx.Data().String(),
Type: transactions.WalletTransfer,
ChainID: wallet_common.ChainID(tx.ChainID),
MultiTransactionID: int64(multiTransaction.ID),
Symbol: multiTransaction.FromAsset,
AutoDelete: new(bool),
}
// Transaction downloader will delete pending transaction as soon as it is confirmed
*pendingTransaction.AutoDelete = false
txs = append(txs, pendingTransaction)
}
}
return txs
}
func multiTransactionFromCommand(command *MultiTransactionCommand) *MultiTransaction {
log.Info("Creating multi transaction", "command", command)
multiTransaction := &MultiTransaction{
FromAddress: command.FromAddress,
ToAddress: command.ToAddress,
FromAsset: command.FromAsset,
ToAsset: command.ToAsset,
FromAmount: command.FromAmount,
ToAmount: new(hexutil.Big),
Type: command.Type,
}
return multiTransaction
}
func (tm *TransactionManager) buildTransactions(bridges map[string]bridge.Bridge) ([]string, error) {
tm.transactionsForKeycardSingning = make(map[common.Hash]*TransactionDescription)
var hashes []string
for _, bridgeTx := range tm.transactionsBridgeData {
builtTx, unlock, err := bridges[bridgeTx.BridgeName].BuildTransaction(bridgeTx)
if err != nil {
if unlock != nil {
unlock(false, 0) // unlock nonce in case of an error, otherwise keep it locked, until the transaction is sent
}
return hashes, err
}
signer := ethTypes.NewLondonSigner(big.NewInt(int64(bridgeTx.ChainID)))
txHash := signer.Hash(builtTx)
tm.transactionsForKeycardSingning[txHash] = &TransactionDescription{
chainID: bridgeTx.ChainID,
builtTx: builtTx,
unlock: unlock,
}
hashes = append(hashes, txHash.String())
}
return hashes, nil
}
func (tm *TransactionManager) sendTransactions(multiTransaction *MultiTransaction,
data []*bridge.TransactionBridge, bridges map[string]bridge.Bridge, password string) (
map[uint64][]types.Hash, error) {
log.Info("Making transactions", "multiTransaction", multiTransaction)
selectedAccount, err := tm.getVerifiedWalletAccount(multiTransaction.FromAddress.Hex(), password)
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if err != nil {
return nil, err
}
hashes := make(map[uint64][]types.Hash)
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for _, tx := range data {
hash, err := bridges[tx.BridgeName].Send(tx, selectedAccount)
if err != nil {
return nil, err
}
hashes[tx.ChainID] = append(hashes[tx.ChainID], hash)
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}
return hashes, nil
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}
func (tm *TransactionManager) GetMultiTransactions(ctx context.Context, ids []MultiTransactionIDType) ([]*MultiTransaction, error) {
placeholders := make([]string, len(ids))
args := make([]interface{}, len(ids))
for i, v := range ids {
placeholders[i] = "?"
args[i] = v
}
stmt, err := tm.db.Prepare(fmt.Sprintf(`SELECT rowid, %s
FROM multi_transactions
WHERE rowid in (%s)`,
selectMultiTransactionColumns,
strings.Join(placeholders, ",")))
if err != nil {
return nil, err
}
defer stmt.Close()
rows, err := stmt.Query(args...)
if err != nil {
return nil, err
}
defer rows.Close()
return rowsToMultiTransactions(rows)
}
func (tm *TransactionManager) getBridgeMultiTransactions(ctx context.Context, toChainID uint64, crossTxID string) ([]*MultiTransaction, error) {
stmt, err := tm.db.Prepare(fmt.Sprintf(`SELECT rowid, %s
FROM multi_transactions
WHERE type=? AND to_network_id=? AND cross_tx_id=?`,
multiTransactionColumns))
if err != nil {
return nil, err
}
defer stmt.Close()
rows, err := stmt.Query(MultiTransactionBridge, toChainID, crossTxID)
if err != nil {
return nil, err
}
defer rows.Close()
return rowsToMultiTransactions(rows)
}
func (tm *TransactionManager) GetBridgeOriginMultiTransaction(ctx context.Context, toChainID uint64, crossTxID string) (*MultiTransaction, error) {
multiTxs, err := tm.getBridgeMultiTransactions(ctx, toChainID, crossTxID)
if err != nil {
return nil, err
}
for _, multiTx := range multiTxs {
// Origin MultiTxs will have a missing "ToTxHash"
if multiTx.ToTxHash == emptyHash {
return multiTx, nil
}
}
return nil, nil
}
func (tm *TransactionManager) GetBridgeDestinationMultiTransaction(ctx context.Context, toChainID uint64, crossTxID string) (*MultiTransaction, error) {
multiTxs, err := tm.getBridgeMultiTransactions(ctx, toChainID, crossTxID)
if err != nil {
return nil, err
}
for _, multiTx := range multiTxs {
// Destination MultiTxs will have a missing "FromTxHash"
if multiTx.FromTxHash == emptyHash {
return multiTx, nil
}
}
return nil, nil
}
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func (tm *TransactionManager) getVerifiedWalletAccount(address, password string) (*account.SelectedExtKey, error) {
exists, err := tm.accountsDB.AddressExists(types.HexToAddress(address))
if err != nil {
log.Error("failed to query db for a given address", "address", address, "error", err)
return nil, err
}
if !exists {
log.Error("failed to get a selected account", "err", transactions.ErrInvalidTxSender)
return nil, transactions.ErrAccountDoesntExist
}
key, err := tm.gethManager.VerifyAccountPassword(tm.config.KeyStoreDir, address, password)
if err != nil {
log.Error("failed to verify account", "account", address, "error", err)
return nil, err
}
return &account.SelectedExtKey{
Address: key.Address,
AccountKey: key,
}, nil
}