105 lines
3.1 KiB
Go
105 lines
3.1 KiB
Go
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package neofs
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import (
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neofs-node/pkg/innerring/invoke"
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neofsEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/neofs"
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"go.uber.org/zap"
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)
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const (
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// txLogPrefix used for balance transfer comments in balance contract.
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txLogPrefix = "mainnet:"
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// lockAccountLifeTime defines amount of epochs when lock account is valid.
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lockAccountLifetime uint64 = 20
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)
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var (
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// fedReserveAddr is a special account in balance contract.
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fedReserveAddr = []byte{0x0F, 0xED}
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)
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// Process deposit event by invoking balance contract and sending native
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// gas in morph chain.
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func (np *Processor) processDeposit(deposit *neofsEvent.Deposit) {
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if !np.activeState.IsActive() {
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np.log.Info("passive mode, ignore deposit")
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return
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}
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// send transferX to balance contract
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err := invoke.TransferBalanceX(np.morphClient, np.balanceContract,
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&invoke.TransferXParams{
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Sender: fedReserveAddr,
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Receiver: deposit.To().BytesBE(),
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Amount: deposit.Amount() * 1_0000_0000, // from Fixed8 to Fixed16
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Comment: append([]byte(txLogPrefix), deposit.ID()...),
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})
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if err != nil {
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np.log.Error("can't transfer assets to balance contract", zap.Error(err))
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}
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// fixme: send gas when ^ tx accepted
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// fixme: do not send gas to the same user twice per epoch
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err = np.morphClient.TransferGas(deposit.To(), util.Fixed8FromInt64(2))
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if err != nil {
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np.log.Error("can't transfer native gas to receiver", zap.Error(err))
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}
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}
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// Process withdraw event by locking assets in balance account.
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func (np *Processor) processWithdraw(withdraw *neofsEvent.Withdraw) {
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if !np.activeState.IsActive() {
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np.log.Info("passive mode, ignore withdraw")
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return
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}
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if len(withdraw.ID()) < util.Uint160Size {
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np.log.Error("tx id size is less than script hash size")
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return
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}
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// create lock account
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// todo: check collision there, consider reversed script hash
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lock, err := util.Uint160DecodeBytesBE(withdraw.ID()[:util.Uint160Size])
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if err != nil {
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np.log.Error("can't create lock account", zap.Error(err))
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return
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}
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curEpoch := np.epochState.EpochCounter()
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err = invoke.LockAsset(np.morphClient, np.balanceContract,
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&invoke.LockParams{
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ID: withdraw.ID(),
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User: withdraw.User(),
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LockAccount: lock,
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Amount: withdraw.Amount() * 1_0000_0000, // todo: from Fixed8 to Fixed16
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Until: curEpoch + lockAccountLifetime,
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})
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if err != nil {
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np.log.Error("can't lock assets for withdraw", zap.Error(err))
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}
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}
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// Process cheque event by transferring assets from lock account back to
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// reserve account.
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func (np *Processor) processCheque(cheque *neofsEvent.Cheque) {
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if !np.activeState.IsActive() {
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np.log.Info("passive mode, ignore cheque")
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return
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}
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err := invoke.TransferBalanceX(np.morphClient, np.balanceContract,
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&invoke.TransferXParams{
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Sender: cheque.LockAccount().BytesBE(),
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Receiver: fedReserveAddr,
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Amount: cheque.Amount() * 1_0000_0000, // from Fixed8 to Fixed16
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Comment: append([]byte(txLogPrefix), cheque.ID()...),
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})
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if err != nil {
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np.log.Error("can't transfer assets to fed contract", zap.Error(err))
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}
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}
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