def seller_decode(self, hexTx):
hexTx = hexTx.strip().replace("\n", "").replace("\r", "").replace(" ", "")
try:
int(hexTx, 16)
except ValueError:
raise
try:
tx = self.rpc_call("decoderawtransaction", [hexTx])
except namerpc.RpcError as e:
if (e.args[0]["error"]["code"] == -8 or e.args[0]["error"]["code"] == -22): # decode errors
raise Exception("decode error")
raise
# analyze tx
self.D = antpyshared.analyze_tx(tx, self.rpc_call, seller=True)
nameList = self.rpc_call("name_list", [self.D["name"]])
if nameList == []:
raise Exception("Name not in wallet: " + str(self.D["name"]))
if nameList[0].has_key("transferred") and nameList[0]["transferred"]:
raise Exception("Name has already been transferred: " + str(self.D["name"]))
self.D["sellerAddress"] = nameList[0]["address"]
self.D["hexTx"] = hexTx # only store after it has been checked
self.D["vinOrig"] = tx["vin"]
return self.D
def create_offer(self, name, bidNmc):
# check name
try:
nameData = self.rpc_call("name_show", [name])
except namerpc.WalletError as e:
if e.code == -4: # failed to read from db
raise antpyshared.NameDoesNotExistError
else:
raise
# inputs (select uses satoshis)
bidSatoshis = antpyshared.to_satoshis(bidNmc)
unspent = self.rpc_call("listunspent")
for u in unspent:
u["satoshis"] = antpyshared.to_satoshis(u["amount"])
inputs = antpyshared.select(unspent, bidSatoshis + antpyshared.TXFEESATOSHIS) # !!! check for too many inputs
sumInputsNmc = sum([i["amount"] for i in inputs])
# outputs
outputs = {nameData["address"] : bidNmc} # Bitcoin client will do proper rounding
changeNmc = sumInputsNmc - bidNmc - antpyshared.TXFEENMC
if antpyshared.to_satoshis(changeNmc) != 0:
buyerChangeAddress = self.rpc_call("getnewaddress")
outputs[buyerChangeAddress] = changeNmc
# name_op
buyerNameAddress = self.rpc_call("getnewaddress")
nameOp = {"op" : "name_update",
"name" : name,
"value" : "", # name data !!! make changeable by user
"address" : buyerNameAddress}
inputs.append(nameData)
# assembly
if debug:
print "inputs--------------------"
pprint.pprint(inputs)
print "outputs-------------------"
pprint.pprint(outputs)
print "nameop--------------------"
pprint.pprint(nameOp)
rawTx = self.rpc_call("createrawtransaction", [inputs, outputs, nameOp])
# fee check (not easily possible - buyer/seller need to verify their output values)
if debug:
tx = self.rpc_call("decoderawtransaction", [rawTx])
print "tx------------------------"
pprint.pprint(tx)
# buyer sign
r = self.rpc_call("signrawtransaction", [rawTx])
rawTx = r["hex"]
# buyer check
tx = self.rpc_call("decoderawtransaction", [rawTx])
D = antpyshared.analyze_tx(tx, self.rpc_call, seller=False)
D["rawTx"] = rawTx # only store after it has been checked
assert name == D["name"]
if debug:
print D
return D
