// Checks the transaction timestamp for validity in being included in the current // No node has any responsiblity to forward on transactions that do not fall within // the timeframe around a block defined by TRANSACTION_PRIOR_LIMIT and TRANSACTION_POST_LIMIT func (fs *FactoidState) ValidateTransactionAge(trans interfaces.ITransaction) error { tsblk := fs.GetCurrentBlock().GetCoinbaseTimestamp().GetTimeMilli() if tsblk < 0 { return fmt.Errorf("Block has no coinbase transaction at this time") } tstrans := trans.GetTimestamp().GetTimeMilli() if tsblk-tstrans > constants.TRANSACTION_PRIOR_LIMIT { return fmt.Errorf("Transaction is too old to be included in the current block") } if tstrans-tsblk > constants.TRANSACTION_POST_LIMIT { // return fmt.Errorf("Transaction is dated too far in the future to be included in the current block") } return nil }
// Only add valid transactions to the current func (fs *FactoidState) AddTransaction(index int, trans interfaces.ITransaction) error { if err := fs.Validate(index, trans); err != nil { return err } if err := fs.ValidateTransactionAge(trans); err != nil { return err } if err := fs.UpdateTransaction(true, trans); err != nil { return err } if err := fs.CurrentBlock.AddTransaction(trans); err != nil { if err != nil { return err } // We assume validity has been done elsewhere. We are maintaining the "seen" state of // all transactions here. fs.State.Replay.IsTSValid(constants.INTERNAL_REPLAY|constants.NETWORK_REPLAY, trans.GetSigHash(), trans.GetTimestamp()) fs.State.Replay.IsTSValid(constants.NETWORK_REPLAY|constants.NETWORK_REPLAY, trans.GetSigHash(), trans.GetTimestamp()) for index, eo := range trans.GetECOutputs() { pl := fs.State.ProcessLists.Get(fs.DBHeight) incBal := entryCreditBlock.NewIncreaseBalance() v := eo.GetAddress().Fixed() incBal.ECPubKey = (*primitives.ByteSlice32)(&v) incBal.NumEC = eo.GetAmount() / fs.GetCurrentBlock().GetExchRate() incBal.TXID = trans.GetSigHash() incBal.Index = uint64(index) entries := pl.EntryCreditBlock.GetEntries() i := 0 // Find the end of the last IncreaseBalance in this minute for i < len(entries) { if _, ok := entries[i].(*entryCreditBlock.IncreaseBalance); ok { break } i++ } entries = append(entries, nil) copy(entries[i+1:], entries[i:]) entries[i] = incBal pl.EntryCreditBlock.GetBody().SetEntries(entries) } } return nil }