def createAtomicSwapTx(self, callback):
fromAccount = Accounts.getAccountByAddress(self.fromAddress)
toMultiSigAccount = Accounts.getAccountByAddress(self.toAddress)
'''
A picks a random number x
'''
hashPrivKey = Crypto.generateHash(toMultiSigAccount.private)
'''
A creates TX1: "Pay w BTC to <B's public key> if (x for H(x) known and signed by B) or (signed by A & B)"
'''
transactionA1 = MemoryPool.createUnconfirmedAtomicSwapTransaction(fromAccount, toMultiSigAccount.address, self.value, self.gasLimit, self.gasPrice, Script.verifyAtomicSwapSignature(), self.threshold)
if transactionA1 != None:
'''
A creates TX2: "Pay w BTC from TX1 to <A's public key>, locked 48 hours in the future, signed by A"
'''
transactionA2 = MemoryPool.createUnconfirmedAtomicSwapTransaction(fromAccount, toMultiSigAccount.address, self.value, self.gasLimit, self.gasPrice, Script.verifyAtomicSwapLock())
if transactionA2 != None:
tx = transactionA1.serialize()
unsignedTx = transactionA2.serialize()
result = {
'tx': DataType.toHex(tx),
'unsignedTx': DataType.toHex(unsignedTx)
}
callback(
JSONRPC.createResultObject(result, self.id)
)
else:
self.onFailure(callback)
else:
self.onFailure(callback)
def serialize(self):
return {
'address': Address.toAddressStr(self.address),
'public': DataType.toHex(self.public),
'private': DataType.toHex(self.private),
'type': self.type
}
def deploy(self, isLocal, callback):
result = None
fromAccount = Accounts.getAccountByAddress(self.fromAddress)
if fromAccount != None:
if isLocal:
toAddress = Crypto.generateAddress(fromAccount.address)
_script = bytearray()
_script.append(Config.getIntValue("EXTENSION_SCRIPT_VERSION"))
_script.extend(self.script)
_script = DataType.serialize(_script)
extraData = None
if len(self.parameters) > 0:
extraData = self.parameters
extraData.append(fromAccount.address)
output = Output(toAddress, _script, self.value, extraData)
result = self.handleLocalScript(fromAccount, output, True)
if result != None:
Contracts.addContract(Contract(toAddress), False)
else:
result = MemoryPool.addUnconfirmedTransaction(
fromAccount, None, self.value, self.gasLimit,
self.gasPrice, self.script, self.parameters)
try:
result = DataType.toHex(result)
except:
pass
if result != None:
callback(JSONRPC.createResultObject(result, self.id))
else:
self.onFailure(callback)
def handleLocalScript(self, fromAccount, output, deploy):
gasLimit = Config.getIntValue('TRANSACTION_LOCAL_GAS_LIMIT')
gasPrice = Config.getIntValue('TRANSACTION_LOCAL_GAS_PRICE')
localTx = Transaction(gasLimit, gasPrice)
localTx.gasRemaining = Config.getIntValue(
'TRANSACTION_LOCAL_GAS_REMAINING')
_input = None
if deploy:
pass
else:
scriptData = []
scriptData.append(DataType.zeroFillArray(0, 32))
scriptData.append(DataType.zeroFillArray(0, 32))
scriptData.append(fromAccount.address)
scriptData.extend(self.parameters)
_input = Input(Config.getValue('SCRIPT_TRANSACTION_ID'),
Config.getIntValue('SCRIPT_OUTPUT_INDEX'))
_input.witness = scriptData
if RVM.run(localTx, _input, output, True, deploy, True):
if len(localTx.internalOutputs) > 0:
internalOutput = localTx.internalOutputs[-1]
if deploy:
PersistentStorage.add(internalOutput.address,
internalOutput, True)
result = 'Script Deployed Locally'
else:
result = internalOutput.script
try:
result = DataType.toHex(result)
result = DataType.asInt(result, 16)
except ValueError:
pass
return result
return None
def call(self, isLocal, callback):
result = None
fromAccount = Accounts.getAccountByAddress(self.fromAddress)
if fromAccount != None:
if isLocal:
_output = PersistentStorage.get(self.script, True)
if _output == None:
unspentTransactionScript = UXTO.getUnspentTransactionScript(
self.script)
if unspentTransactionScript != None:
_output = unspentTransactionScript.output
if _output != None:
result = self.handleLocalScript(fromAccount, _output,
False)
else:
result = MemoryPool.addUnconfirmedTransaction(
fromAccount, self.script, self.value, self.gasLimit,
self.gasPrice, None, self.parameters)
try:
result = DataType.toHex(result)
except:
pass
if result != None:
callback(JSONRPC.createResultObject(result, self.id))
else:
self.onFailure(callback)
def addUnconfirmedMultiSigTransaction(self, callback=None):
fromAccount = Accounts.getAccountByAddress(self.fromAddress)
txId = None
if fromAccount != None:
txId = MemoryPool.addUnconfirmedMultiSigTransaction(
fromAccount, self.publicKeys, self.signatures, self.toAddress,
self.value, self.gasLimit, self.gasPrice, self.threshold)
if txId != None:
callback(JSONRPC.createResultObject(DataType.toHex(txId), self.id))
else:
self.onFailure(callback)
def signAtomicSwapTx(self, callback):
transaction = Transaction()
transaction.deserialize(self.unsignedTx)
transaction.sign()
if MemoryPool.addSignedTransaction(transaction):
txId = transaction.hash()
callback(
JSONRPC.createResultObject(DataType.toHex(txId), self.id)
)
else:
self.onFailure(callback)
def signMultiSigOutput(self, callback=None):
signatures = []
multiSigAccount = Accounts.getAccountByAddress(self.fromAddress)
if multiSigAccount != None:
transaction = MemoryPool.createUnconfirmedMultiSigTransaction(
multiSigAccount, self.toAddress, self.value, self.gasLimit,
self.gasPrice, self.threshold)
if transaction != None:
for txIn in transaction.inputs:
multiSigAddress = DataType.toHex(multiSigAccount.address)
_publicKeys = txIn.witness[::2]
_signatures = txIn.witness[1::2]
for publicKey, signature in zip(_publicKeys, _signatures):
publicKey = DataType.toHex(publicKey)
signature = DataType.toHex(signature)
signatures.append({
'address': multiSigAddress,
'public': publicKey,
'signature': signature
})
callback(JSONRPC.createResultObject(signatures, self.id))