def newTransaction(inPrvkey, inPubkey, outPubkey, amount, utxo, script=""):
if script:
contract = Contract(script)
result = contract.check()
if result["errCode"] != 0:
return result
ins = []
outs = []
inAddr = Wallet.address(inPubkey)
outAddr = Wallet.address(outPubkey)
todo = utxo.findSpendableOutputs(inAddr, amount)
#todo={"acc":3,"unspend":{"3453425125":{"index":0,"amount":"3"},
# "2543543543":{"index":0,"amount":"2"}
# }
# }
#print("newTransaction.todo","\n",todo)
amount = round(amount, 4)
if todo["acc"] < amount:
Transaction.logger.warning("%s not have enough money." % inAddr)
return {"errCode": 1, "errText": "not enough money."}
for hash in todo["unspend"]:
output = todo["unspend"][hash]
prevHash = hash
index = output["index"]
toSign = prevHash + str(index) + inAddr
sign = utils.sign(message=toSign, prvkey=inPrvkey)
ins.append(
TXin({
"prevHash": prevHash,
"index": index,
"inAddr": inAddr,
"pubkey": inPubkey,
"sign": sign
}))
outs.append(
TXout({
"amount": round(amount, 4),
"outAddr": outAddr,
"script": script
}))
if todo["acc"] > amount:
outs.append(
TXout({
"amount": round(todo["acc"] - amount, 4),
"outAddr": inAddr,
"script": ""
}))
TX = Transaction(ins=ins, outs=outs)
utxoSet = copy.deepcopy(utxo.utxoSet)
if not utxo.updateWithTX(TX, utxoSet):
return {
"errCode": 1,
"errText": "double spend!!,Maybe not enough money."
}
utxo.utxoSet = utxoSet
return TX
