def decode(self, rawmsg):
#msg = rawmsg.rstrip(os.linesep).split(SOH)
try:
rawmsg = rawmsg.decode('utf-8')
msg = rawmsg.split(self.SOH)
msg = msg[:-1]
if len(msg) < 3: # at a minumum we require BeginString, BodyLength & Checksum
return (None, 0)
tag, value = msg[0].split('=', 1)
if tag != self.protocol.fixtags.BeginString:
logging.error("*** BeginString missing or not 1st field *** [" + tag + "]")
elif value != self.protocol.beginstring:
logging.error("FIX Version unexpected (Recv: %s Expected: %s)" % (value, self.protocol.beginstring))
tag, value = msg[1].split('=', 1)
msgLength = len(msg[0]) + len(msg[1]) + len('10=000') + 3
if tag != self.protocol.fixtags.BodyLength:
logging.error("*** BodyLength missing or not 2nd field *** [" + tag + "]")
else:
msgLength += int(value)
# do we have a complete message on the sockt
if msgLength > len(rawmsg):
return (None, 0)
else:
remainingMsgFragment = msgLength
# resplit our message
msg = rawmsg[:msgLength].split(self.SOH)
msg = msg[:-1]
decodedMsg = FIXMessage("UNKNOWN")
# logging.debug("\t-----------------------------------------")
# logging.debug("\t" + "|".join(msg))
repeatingGroups = []
repeatingGroupTags = self.protocol.fixtags.repeatingGroupIdentifiers()
currentContext = decodedMsg
for m in msg:
tag, value = m.split('=', 1)
t = None
try:
t = self.protocol.fixtags.tagToName(tag)
except KeyError:
logging.info("\t%s(Unknown): %s" % (tag, value))
t = "{unknown}"
if tag == self.protocol.fixtags.CheckSum:
cksum = ((sum([ord(i) for i in list(self.SOH.join(msg[:-1]))]) + 1) % 256)
if cksum != int(value):
logging.warning("\tCheckSum: %s (INVALID) expecting %s" % (int(value), cksum))
elif tag == self.protocol.fixtags.MsgType:
try:
msgType = self.protocol.msgtype.msgTypeToName(value)
decodedMsg.setMsgType(value)
except KeyError:
logging.error('*** MsgType "%s" not supported ***')
if tag in repeatingGroupTags: # found the start of a repeating group
if type(currentContext) is RepeatingGroupContext: # i.e. we are already in a repeating group
while repeatingGroups and tag not in currentContext.repeatingGroupTags:
currentContext.parent.addRepeatingGroup(currentContext.tag, currentContext)
currentContext = currentContext.parent
del repeatingGroups[-1] # pop the completed group off the stack
ctx = RepeatingGroupContext(tag, repeatingGroupTags[tag], currentContext)
repeatingGroups.append(ctx)
currentContext = ctx
elif repeatingGroups: # we have 1 or more repeating groups in progress & our tag isn't the start of a group
while repeatingGroups and tag not in currentContext.repeatingGroupTags:
currentContext.parent.addRepeatingGroup(currentContext.tag, currentContext)
currentContext = currentContext.parent
del repeatingGroups[-1] # pop the completed group off the stack
if tag in currentContext.tags:
# if the repeating group already contains this field, start the next
currentContext.parent.addRepeatingGroup(currentContext.tag, currentContext)
ctx = RepeatingGroupContext(currentContext.tag, currentContext.repeatingGroupTags, currentContext.parent)
del repeatingGroups[-1] # pop the completed group off the stack
repeatingGroups.append(ctx)
currentContext = ctx
# else add it to the current one
currentContext.setField(tag, value)
else:
# this isn't a repeating group field, so just add it normally
decodedMsg.setField(tag, value)
return (decodedMsg, remainingMsgFragment)
except UnicodeDecodeError as why:
logging.error("Failed to parse message %s" % (why, ))
return (None, 0)
def sendOrder(self,
symbol,
side,
ordType,
quantity,
price=None,
connectionHandler=None):
if not connectionHandler:
connectionHandler = self.connectionHandler
self.clOrdID = str(uuid.uuid4())
codec = connectionHandler.codec
msg = FIXMessage(codec.protocol.msgtype.NEWORDERSINGLE)
if price and ordType == "limit":
msg.setField(codec.protocol.fixtags.Price, price)
msg.setField(codec.protocol.fixtags.OrderQty, quantity)
msg.setField(codec.protocol.fixtags.OrdType,
self.orderTypeDict[ordType])
msg.setField(codec.protocol.fixtags.TimeInForce, "1")
msg.setField(codec.protocol.fixtags.Symbol, symbol)
msg.setField(codec.protocol.fixtags.HandlInst, "1")
msg.setField(codec.protocol.fixtags.Side, self.orderSideDict[side])
msg.setField(codec.protocol.fixtags.ClOrdID, self.clOrdID)
connectionHandler.sendMsg(msg)
print("Send order at: " + str(self.current_datetime()))
def logon():
msg = FIXMessage(msgtype.LOGON)
msg.setField(fixtags.EncryptMethod, 0)
msg.setField(fixtags.HeartBtInt, 30)
return msg
def resend_request(beginSeqNo, endSeqNo = '0'):
msg = FIXMessage(msgtype.RESENDREQUEST)
msg.setField(fixtags.BeginSeqNo, str(beginSeqNo))
msg.setField(fixtags.EndSeqNo, str(endSeqNo))
return msg
def sequence_reset(respondingTo, isGapFill):
msg = FIXMessage(msgtype.SEQUENCERESET)
msg.setField(fixtags.GapFillFlag, 'Y' if isGapFill else 'N')
msg.setField(fixtags.MsgSeqNum, respondingTo[fixtags.BeginSeqNo])
return msg
def _handleResendRequest(self, msg):
protocol = self.codec.protocol
responses = []
beginSeqNo = msg[protocol.fixtags.BeginSeqNo]
endSeqNo = msg[protocol.fixtags.EndSeqNo]
if int(endSeqNo) == 0:
endSeqNo = sys.maxsize
logging.info("Received resent request from %s to %s", beginSeqNo,
endSeqNo)
replayMsgs = self.engine.journaller.recoverMsgs(
self.session, MessageDirection.OUTBOUND, beginSeqNo, endSeqNo)
gapFillBegin = int(beginSeqNo)
gapFillEnd = int(beginSeqNo)
for replayMsg in replayMsgs:
msgSeqNum = int(replayMsg[protocol.fixtags.MsgSeqNum])
if replayMsg[protocol.fixtags.
MsgType] in protocol.msgtype.sessionMessageTypes:
gapFillEnd = msgSeqNum + 1
else:
if self.engine.shouldResendMessage(self.session, replayMsg):
if gapFillBegin < gapFillEnd:
# we need to send a gap fill message
gapFillMsg = FIXMessage(protocol.msgtype.SEQUENCERESET)
gapFillMsg.setField(protocol.fixtags.GapFillFlag, 'Y')
gapFillMsg.setField(protocol.fixtags.MsgSeqNum,
gapFillBegin)
gapFillMsg.setField(protocol.fixtags.NewSeqNo,
str(gapFillEnd))
responses.append(gapFillMsg)
# and then resent the replayMsg
replayMsg.removeField(protocol.fixtags.BeginString)
replayMsg.removeField(protocol.fixtags.BodyLength)
replayMsg.removeField(protocol.fixtags.SendingTime)
replayMsg.removeField(protocol.fixtags.SenderCompID)
replayMsg.removeField(protocol.fixtags.TargetCompID)
replayMsg.removeField(protocol.fixtags.CheckSum)
replayMsg.setField(protocol.fixtags.PossDupFlag, "Y")
responses.append(replayMsg)
gapFillBegin = msgSeqNum + 1
else:
gapFillEnd = msgSeqNum + 1
responses.append(replayMsg)
if gapFillBegin < gapFillEnd:
# we need to send a gap fill message
gapFillMsg = FIXMessage(protocol.msgtype.SEQUENCERESET)
gapFillMsg.setField(protocol.fixtags.GapFillFlag, 'Y')
gapFillMsg.setField(protocol.fixtags.MsgSeqNum, gapFillBegin)
gapFillMsg.setField(protocol.fixtags.NewSeqNo, str(gapFillEnd))
responses.append(gapFillMsg)
return responses
def sendOrder(self, connectionHandler, price, quantity, side):
self.clOrdID = self.clOrdID + 1
codec = connectionHandler.codec
msg = FIXMessage(codec.protocol.msgtype.NEWORDERSINGLE)
msg.setField(codec.protocol.fixtags.Price,
float(price)) #"%0.2f" % (random.random() * 2 + 10))
msg.setField(codec.protocol.fixtags.OrderQty,
int(quantity)) # int(random.random() * 100))
msg.setField(codec.protocol.fixtags.Symbol, "BTCUSD")
msg.setField(codec.protocol.fixtags.SecurityID, "BTC")
msg.setField(codec.protocol.fixtags.SecurityIDSource, "4")
msg.setField(codec.protocol.fixtags.Account, "TEST")
msg.setField(codec.protocol.fixtags.HandlInst, "1")
msg.setField(codec.protocol.fixtags.ExDestination, "XLON")
msg.setField(codec.protocol.fixtags.Side,
int(side)) #int(random.random() * 2) + 1)
msg.setField(codec.protocol.fixtags.ClOrdID, str(self.clOrdID))
msg.setField(codec.protocol.fixtags.Currency, "USD")
connectionHandler.sendMsg(msg)
side = Side(int(msg.getField(codec.protocol.fixtags.Side)))
logging.debug("---> [%s] %s: %s %s %s@%s" %
(codec.protocol.msgtype.msgTypeToName(msg.msgType),
msg.getField(codec.protocol.fixtags.ClOrdID),
msg.getField(codec.protocol.fixtags.Symbol), side.name,
msg.getField(codec.protocol.fixtags.OrderQty),
msg.getField(codec.protocol.fixtags.Price)))