コード例 #1
0
ファイル: ack.go プロジェクト: FactomProject/factomd
func HandleV2EntryACK(state interfaces.IState, params interface{}) (interface{}, *primitives.JSONError) {
	ackReq := new(AckRequest)
	err := MapToObject(params, ackReq)
	if err != nil {
		return nil, NewInvalidParamsError()
	}

	if ackReq.TxID == "" && ackReq.FullTransaction == "" {
		return nil, NewInvalidParamsError()
	}

	eTxID := ""
	ecTxID := ""

	if ackReq.TxID == "" {
		eTxID, ecTxID = DecodeTransactionToHashes(ackReq.FullTransaction)
		if ecTxID == "" && eTxID == "" {
			return nil, NewUnableToDecodeTransactionError()
		}
	}

	//TODO: fetch entries, ec TXs from state as well

	//We didn't receive a full transaction, but a transaction hash
	//We have to figure out which transaction hash we got
	if ecTxID == "" && eTxID == "" {
		h, err := primitives.NewShaHashFromStr(ackReq.TxID)
		if err != nil {
			return nil, NewInvalidParamsError()
		}
		entry, err := state.FetchEntryByHash(h)
		if err != nil {
			return nil, NewInternalError()
		}
		if entry != nil {
			eTxID = ackReq.TxID
		} else {
			ec, err := state.FetchECTransactionByHash(h)
			if err != nil {
				return nil, NewInternalError()
			}

			//fmt.Printf("ec - %v\n", ec)
			if ec != nil {
				ecTxID = ackReq.TxID
				eTxID = ec.GetEntryHash().String()
			}
		}
	}

	answer := new(EntryStatus)
	answer.CommitTxID = ecTxID
	answer.EntryHash = eTxID

	if answer.CommitTxID == "" && answer.EntryHash == "" {
		//We know nothing about the transaction, so we return unknown status
		answer.CommitData.Status = AckStatusUnknown
		answer.EntryData.Status = AckStatusUnknown
		return answer, nil
	}

	//Fetching the second part of the transaction pair
	if answer.EntryHash == "" {
		h, err := primitives.NewShaHashFromStr(answer.EntryHash)
		if err != nil {
			return nil, NewInvalidParamsError()
		}
		ec, err := state.FetchECTransactionByHash(h)
		if err != nil {
			return nil, NewInternalError()
		}
		if ec != nil {
			answer.EntryHash = ec.GetEntryHash().String()
		}
	}

	if answer.CommitTxID == "" {
		h, err := primitives.NewShaHashFromStr(answer.EntryHash)
		if err != nil {
			return nil, NewInvalidParamsError()
		}
		ec, err := state.FetchPaidFor(h)
		if err != nil {
			return nil, NewInternalError()
		}
		if ec != nil {
			answer.CommitTxID = ec.String()
		}
	}

	//Fetching statuses
	if answer.CommitTxID == "" {
		answer.CommitData.Status = AckStatusUnknown
	} else {
		h, err := primitives.NewShaHashFromStr(answer.CommitTxID)
		if err != nil {
			return nil, NewInvalidParamsError()
		}

		status, txid, txTime, blockTime, err := state.GetACKStatus(h)
		if err != nil {
			return nil, NewInternalError()
		}

		answer.CommitTxID = txid.String()

		if txTime != nil {
			answer.CommitData.TransactionDate = txTime.GetTimeMilli()
			if txTime.GetTimeMilli() > 0 {
				answer.CommitData.TransactionDateString = txTime.String()
			}
		}
		if blockTime != nil {
			answer.CommitData.BlockDate = blockTime.GetTimeMilli()
			if blockTime.GetTimeMilli() > 0 {
				answer.CommitData.BlockDateString = blockTime.String()
			}
		}

		switch status {
		case constants.AckStatusInvalid:
			answer.CommitData.Status = AckStatusInvalid
			break
		case constants.AckStatusUnknown:
			answer.CommitData.Status = AckStatusUnknown
			break
		case constants.AckStatusNotConfirmed:
			answer.CommitData.Status = AckStatusNotConfirmed
			break
		case constants.AckStatusACK:
			answer.CommitData.Status = AckStatusACK
			break
		case constants.AckStatus1Minute:
			answer.CommitData.Status = AckStatus1Minute
			break
		case constants.AckStatusDBlockConfirmed:
			answer.CommitData.Status = AckStatusDBlockConfirmed
			break
		default:
			return nil, NewInternalError()
			break
		}
	}

	if answer.EntryHash == "" {
		answer.EntryData.Status = AckStatusUnknown
	} else {
		h, err := primitives.NewShaHashFromStr(answer.EntryHash)
		if err != nil {
			return nil, NewInvalidParamsError()
		}

		status, txid, txTime, blockTime, err := state.GetACKStatus(h)
		if err != nil {
			return nil, NewInternalError()
		}

		answer.EntryHash = txid.String()

		if txTime != nil {
			answer.EntryData.TransactionDate = txTime.GetTimeMilli()
			if txTime.GetTimeMilli() > 0 {
				answer.EntryData.TransactionDateString = txTime.String()
			}
		}
		if blockTime != nil {
			answer.EntryData.BlockDate = blockTime.GetTimeMilli()
			if blockTime.GetTimeMilli() > 0 {
				answer.EntryData.BlockDateString = blockTime.String()
			}
		}

		switch status {
		case constants.AckStatusInvalid:
			answer.EntryData.Status = AckStatusInvalid
			break
		case constants.AckStatusUnknown:
			answer.EntryData.Status = AckStatusUnknown
			break
		case constants.AckStatusNotConfirmed:
			answer.EntryData.Status = AckStatusNotConfirmed
			break
		case constants.AckStatusACK:
			answer.EntryData.Status = AckStatusACK
			break
		case constants.AckStatus1Minute:
			answer.EntryData.Status = AckStatus1Minute
			break
		case constants.AckStatusDBlockConfirmed:
			answer.EntryData.Status = AckStatusDBlockConfirmed
			break
		default:
			return nil, NewInternalError()
			break
		}
	}

	return answer, nil
}