code.vegaprotocol.io/vega@v0.79.0/core/matching/validation.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package matching
    17  
    18  import (
    19  	"encoding/hex"
    20  
    21  	"code.vegaprotocol.io/vega/core/types"
    22  	"code.vegaprotocol.io/vega/libs/num"
    23  	"code.vegaprotocol.io/vega/logging"
    24  )
    25  
    26  const (
    27  	orderIDLen = 64
    28  )
    29  
    30  func (b OrderBook) validateOrder(orderMessage *types.Order) (err error) {
    31  	if orderMessage.Price == nil {
    32  		orderMessage.Price = num.UintZero()
    33  	}
    34  	if orderMessage.MarketID != b.marketID {
    35  		b.log.Error("Market ID mismatch",
    36  			logging.String("market", orderMessage.MarketID),
    37  			logging.String("order-book", b.marketID),
    38  			logging.Order(*orderMessage))
    39  		err = types.ErrInvalidMarketID
    40  	} else if orderMessage.Type == types.OrderTypeUnspecified {
    41  		err = types.ErrInvalidType
    42  	} else if orderMessage.Remaining == 0 {
    43  		err = types.ErrInvalidRemainingSize
    44  	} else if orderMessage.TimeInForce == types.OrderTimeInForceGTT && orderMessage.ExpiresAt == 0 {
    45  		// if order is GTT, validate timestamp and convert to block number
    46  		err = types.ErrInvalidExpirationDatetime
    47  	} else if len(orderMessage.Party) == 0 {
    48  		err = types.ErrInvalidPartyID
    49  	} else if orderMessage.Size == 0 {
    50  		err = types.ErrInvalidSize
    51  	} else if orderMessage.Remaining > orderMessage.Size {
    52  		err = types.ErrInvalidRemainingSize
    53  	} else if orderMessage.Type == types.OrderTypeNetwork && orderMessage.TimeInForce != types.OrderTimeInForceFOK {
    54  		err = types.ErrInvalidPersistence
    55  	} else if orderMessage.TimeInForce == types.OrderTimeInForceGTT && orderMessage.Type != types.OrderTypeLimit {
    56  		err = types.ErrInvalidPersistence
    57  	} else if orderMessage.Type == types.OrderTypeMarket &&
    58  		(orderMessage.TimeInForce == types.OrderTimeInForceGTT || orderMessage.TimeInForce == types.OrderTimeInForceGTC) {
    59  		err = types.ErrInvalidPersistence
    60  	} else if b.auction && orderMessage.TimeInForce == types.OrderTimeInForceGFN {
    61  		err = types.ErrInvalidTimeInForce
    62  	} else if !b.auction && orderMessage.TimeInForce == types.OrderTimeInForceGFA {
    63  		err = types.ErrInvalidTimeInForce
    64  	} else if orderMessage.ExpiresAt > 0 && orderMessage.Type == types.OrderTypeMarket {
    65  		err = types.ErrInvalidExpirationDatetime
    66  	}
    67  
    68  	return err
    69  }
    70  
    71  func validateOrderID(orderID string) error {
    72  	_, err := hex.DecodeString(orderID)
    73  	idLen := len(orderID)
    74  	if err != nil || idLen != orderIDLen {
    75  		return types.ErrInvalidOrderID
    76  	}
    77  	return nil
    78  }