def InvokeWithTokenVerificationScript(wallet, tx, token, fee=Fixed8.Zero()):
wallet_tx = wallet.MakeTransaction(tx=tx, fee=fee, use_standard=True)
if wallet_tx:
token_contract_state = Blockchain.Default().GetContract(
token.ScriptHash.ToString())
print("token contract %s " % token_contract_state)
tx.Attributes = [
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=token.ScriptHash.Data)
]
reedeem_script = token_contract_state.Code.Script.hex()
# there has to be at least 1 param, and the first
# one needs to be a signature param
param_list = bytearray(b'\x00\x00')
verification_contract = Contract.Create(
reedeem_script, param_list,
wallet.GetDefaultContract().PublicKeyHash)
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
context.Add(verification_contract, 0, 0)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("full wallet tx: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
# check if we can save the tx first
save_tx = wallet.SaveTransaction(wallet_tx)
if save_tx:
relayed = NodeLeader.Instance().Relay(wallet_tx)
else:
print("Could not save tx to wallet, will not send tx")
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def InvokeContract(wallet, tx):
wallet_tx = wallet.MakeTransaction(tx=tx)
if wallet_tx:
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if context.Completed:
tx.scripts = context.GetScripts()
wallet.SaveTransaction(wallet_tx)
relayed = NodeLeader.Instance().Relay(wallet_tx)
if relayed:
print("Relayed Tx: %s " % tx.Hash.ToString())
return True
else:
print("Could not relay tx %s " % tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def InvokeWithdrawTx(wallet, tx, contract_hash):
# print("withdraw tx 1 %s " % json.dumps(tx.ToJson(), indent=4))
requestor_contract = wallet.GetDefaultContract()
tx.Attributes = [
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=Crypto.ToScriptHash(
requestor_contract.Script).Data)
]
withdraw_contract_state = Blockchain.Default().GetContract(
contract_hash.encode('utf-8'))
withdraw_verification = None
if withdraw_contract_state is not None:
reedeem_script = withdraw_contract_state.Code.Script.hex()
# there has to be at least 1 param, and the first
# one needs to be a signature param
param_list = bytearray(b'\x00')
# if there's more than one param
# we set the first parameter to be the signature param
if len(withdraw_contract_state.Code.ParameterList) > 1:
param_list = bytearray(withdraw_contract_state.Code.ParameterList)
param_list[0] = 0
verification_contract = Contract.Create(
reedeem_script, param_list, requestor_contract.PublicKeyHash)
address = verification_contract.Address
withdraw_verification = verification_contract
context = ContractParametersContext(tx)
wallet.Sign(context)
context.Add(withdraw_verification, 0, 0)
if context.Completed:
tx.scripts = context.GetScripts()
print("withdraw tx %s " % json.dumps(tx.ToJson(), indent=4))
wallet.SaveTransaction(tx)
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
print("Relayed Withdrawal Tx: %s " % tx.Hash.ToString())
return True
else:
print("Could not relay witdrawal tx %s " % tx.Hash.ToString())
else:
print("Incomplete signature")
def create_raw_sc_method_call_tx(
source_address,
source_address_wif,
smartcontract_scripthash,
smartcontract_method,
smartcontract_method_args,
):
source_script_hash = address_to_scripthash(source_address)
# start by creating a base InvocationTransaction
# the inputs, outputs and Type do not have to be set anymore.
invocation_tx = InvocationTransaction()
# often times smart contract developers use the function ``CheckWitness`` to determine if the transaction is signed by somebody eligible of calling a certain method
# in order to pass that check you want to add the corresponding script_hash as a transaction attribute (this is generally the script_hash of the public key you use for signing)
# Note that for public functions like the NEP-5 'getBalance' and alike this would not be needed, but it doesn't hurt either
invocation_tx.Attributes.append(
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=source_script_hash))
smartcontract_scripthash = UInt160.ParseString(smartcontract_scripthash)
# next we need to build a 'script' that gets executed against the smart contract.
# this is basically the script that calls the entry point of the contract with the necessary parameters
sb = ScriptBuilder()
# call the method on the contract (assumes contract address is a NEP-5 token)
sb.EmitAppCallWithOperationAndArgs(
smartcontract_scripthash,
smartcontract_method,
smartcontract_method_args,
)
invocation_tx.Script = binascii.unhexlify(sb.ToArray())
# at this point we've build our unsigned transaction and it's time to sign it before we get the raw output that we can send to the network via RPC
# we need to create a Wallet instance for helping us with signing
wallet = UserWallet.Create('path',
to_aes_key('mypassword'),
generate_default_key=False)
# if you have a WIF use the following
# this WIF comes from the `neo-test1-w.wallet` fixture wallet
private_key = KeyPair.PrivateKeyFromWIF(source_address_wif)
# if you have a NEP2 encrypted key use the following instead
# private_key = KeyPair.PrivateKeyFromNEP2("NEP2 key string", "password string")
# we add the key to our wallet
wallet.CreateKey(private_key)
# and now we're ready to sign
context = ContractParametersContext(invocation_tx)
wallet.Sign(context)
invocation_tx.scripts = context.GetScripts()
raw_tx = invocation_tx.ToArray()
print(raw_tx)
return raw_tx.decode()
def InvokeWithTokenVerificationScript(wallet, tx, token, fee=Fixed8.Zero(), invoke_attrs=None):
try:
wallet_tx = wallet.MakeTransaction(tx=tx, fee=fee, use_standard=True)
except ValueError:
print("Insufficient funds")
return False
if wallet_tx:
token_contract_state = Blockchain.Default().GetContract(token.ScriptHash.ToString())
print("token contract %s " % token_contract_state)
tx.Attributes = [
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=token.ScriptHash.Data)
]
if invoke_attrs:
tx.Attributes += invoke_attrs
reedeem_script = token_contract_state.Code.Script.hex()
# there has to be at least 1 param, and the first
# one needs to be a signature param
param_list = bytearray(b'\x00\x00')
verification_contract = Contract.Create(reedeem_script, param_list, wallet.GetDefaultContract().PublicKeyHash)
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
context.Add(verification_contract, 0, 0)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
nodemgr = NodeManager()
relayed = nodemgr.relay(wallet_tx)
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
# if it was relayed, we save tx
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def SplitUnspentCoin(wallet, args, prompt_passwd=True):
"""
example ``wallet split Ab8RGQEWetkhVqXjPHeGN9LJdbhaFLyUXz neo 1 100``
this would split the second unspent neo vin into 100 vouts
:param wallet:
:param args (list): A list of arguments as [Address, asset type, unspent index, divisions]
:return: bool
"""
try:
addr = wallet.ToScriptHash(args[0])
asset = get_asset_id(wallet, args[1])
index = int(args[2])
divisions = int(args[3])
except Exception as e:
logger.info("Invalid arguments specified: %s " % e)
return None
try:
unspentItem = wallet.FindUnspentCoinsByAsset(asset,
from_addr=addr)[index]
except Exception as e:
logger.info(
"Could not find unspent item for asset with index %s %s : %s" %
(asset, index, e))
return None
outputs = split_to_vouts(asset, addr, unspentItem.Output.Value, divisions)
contract_tx = ContractTransaction(outputs=outputs,
inputs=[unspentItem.Reference])
ctx = ContractParametersContext(contract_tx)
wallet.Sign(ctx)
print("Splitting: %s " % json.dumps(contract_tx.ToJson(), indent=4))
if prompt_passwd:
passwd = prompt("[Password]> ", is_password=True)
if not wallet.ValidatePassword(passwd):
print("incorrect password")
return None
if ctx.Completed:
contract_tx.scripts = ctx.GetScripts()
relayed = NodeLeader.Instance().Relay(contract_tx)
if relayed:
wallet.SaveTransaction(contract_tx)
print("Relayed Tx: %s " % contract_tx.Hash.ToString())
return contract_tx
else:
print("Could not relay tx %s " % contract_tx.Hash.ToString())
return None
def InvokeContract(wallet, tx, fee=Fixed8.Zero(), from_addr=None, owners=None):
if from_addr is not None:
from_addr = PromptUtils.lookup_addr_str(wallet, from_addr)
try:
wallet_tx = wallet.MakeTransaction(tx=tx,
fee=fee,
use_standard=True,
from_addr=from_addr)
except ValueError:
print("Insufficient funds")
return False
except TXFeeError as e:
print(e)
return False
if wallet_tx:
if owners:
for owner in list(owners):
wallet_tx.Attributes.append(
TransactionAttribute(
usage=TransactionAttributeUsage.Script, data=owner))
wallet_tx.Attributes = make_unique_script_attr(tx.Attributes)
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if owners:
gather_signatures(context, wallet_tx, list(owners))
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("SENDING TX: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(wallet_tx)
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def _generate_tx(self):
wallet = self.GetWallet1()
output = TransactionOutput(AssetId=Blockchain.SystemShare().Hash, Value=Fixed8.One(),
script_hash=LeaderTestCase.wallet_1_script_hash)
contract_tx = ContractTransaction(outputs=[output])
wallet.MakeTransaction(contract_tx)
ctx = ContractParametersContext(contract_tx)
wallet.Sign(ctx)
contract_tx.scripts = ctx.GetScripts()
return contract_tx
def example2():
source_address = "AJQ6FoaSXDFzA6wLnyZ1nFN7SGSN2oNTc3"
source_script_hash = address_to_scripthash(source_address)
# start by creating a base InvocationTransaction
# the inputs, outputs and Type do not have to be set anymore.
invocation_tx = InvocationTransaction()
# Since we are building a raw transaction, we will add the raw_tx flag
invocation_tx.raw_tx = True
# often times smart contract developers use the function ``CheckWitness`` to determine if the transaction is signed by somebody eligible of calling a certain method
# in order to pass that check you want to add the corresponding script_hash as a transaction attribute (this is generally the script_hash of the public key you use for signing)
# Note that for public functions like the NEP-5 'getBalance' and alike this would not be needed, but it doesn't hurt either
invocation_tx.Attributes.append(
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=source_script_hash))
# next we need to build a 'script' that gets executed against the smart contract.
# this is basically the script that calls the entry point of the contract with the necessary parameters
smartcontract_scripthash = UInt160.ParseString(
"31730cc9a1844891a3bafd1aa929a4142860d8d3")
sb = ScriptBuilder()
# call the NEP-5 `name` method on the contract (assumes contract address is a NEP-5 token)
sb.EmitAppCallWithOperation(smartcontract_scripthash, 'name')
invocation_tx.Script = binascii.unhexlify(sb.ToArray())
# at this point we've build our unsigned transaction and it's time to sign it before we get the raw output that we can send to the network via RPC
# we need to create a Wallet instance for helping us with signing
wallet = UserWallet.Create('path',
to_aes_key('mypassword'),
generate_default_key=False)
# if you have a WIF use the following
# this WIF comes from the `neo-test1-w.wallet` fixture wallet
private_key = KeyPair.PrivateKeyFromWIF(
"Ky94Rq8rb1z8UzTthYmy1ApbZa9xsKTvQCiuGUZJZbaDJZdkvLRV")
# if you have a NEP2 encrypted key use the following instead
# private_key = KeyPair.PrivateKeyFromNEP2("NEP2 key string", "password string")
# we add the key to our wallet
wallet.CreateKey(private_key)
# and now we're ready to sign
context = ContractParametersContext(invocation_tx)
wallet.Sign(context)
invocation_tx.scripts = context.GetScripts()
raw_tx = invocation_tx.ToArray()
return raw_tx
def create_tx(contract_hash, address_from, address_to, tnc_amount, gas_change,
input_txid, preIndex):
nep5TokenId = get_nep5token_id(contract_hash)
scripthash_from = ToScriptHash(address_from)
scripthash_to = ToScriptHash(address_to)
f8amount = amount_from_string(nep5TokenId, tnc_amount)
f8amount_change = Fixed8.TryParse(gas_change, require_positive=True)
assetId = get_asset_id("gas")
preHash = UInt256(data=binascii.unhexlify(hex_reverse(input_txid)))
input = TransactionInput(prevHash=preHash, prevIndex=preIndex)
output = TransactionOutput(AssetId=assetId,
Value=f8amount_change,
script_hash=scripthash_from)
tx = InvocationTransaction(outputs=[output], inputs=[input])
tx.Version = 1
context = ContractParametersContext(tx)
tx.scripts = context.GetScripts()
invoke_args = [
nep5TokenId.ScriptHash, 'transfer',
[
bytearray.fromhex(hex_reverse(scripthash_from.ToString())),
bytearray.fromhex(hex_reverse(scripthash_to.ToString())),
BigInteger(f8amount)
]
]
sb = ScriptBuilder()
invoke_args.reverse()
for item in invoke_args[:2]:
if type(item) is list:
item.reverse()
listlength = len(item)
for listitem in item:
sb.push(listitem)
sb.push(listlength)
sb.Emit(PACK)
else:
sb.push(binascii.hexlify(item.encode()))
sb.EmitAppCall(nep5TokenId.ScriptHash.ToArray())
op_data = sb.ToArray().decode()
tx.Script = binascii.unhexlify(op_data)
tx_data = get_tx_data(tx)[:-2]
print("tx_data:", tx_data)
signstr = binascii.hexlify(
Crypto.Sign(message=tx_data, private_key=private_key)).decode()
rawtx_data = tx_data + "014140" + signstr + "2321" + public_key + "ac"
return rawtx_data
def begin_send(wallet, arguments):
to_send = arguments[0]
address_to = arguments[1]
amount = arguments[2]
from_address = arguments[3]
assetId = None
if to_send == 'neo':
assetId = Blockchain.Default().SystemShare().Hash
else:
assetId = Blockchain.Default().SystemCoin().Hash
scripthash_to = wallet.ToScriptHash(address_to)
scripthash_from = wallet.ToScriptHash(from_address)
f8amount = Fixed8.TryParse(amount)
if f8amount.value % pow(
10, 8 - Blockchain.Default().GetAssetState(
assetId.ToBytes()).Precision) != 0:
print("incorrect amount precision")
return
fee = Fixed8.Zero()
output = TransactionOutput(AssetId=assetId,
Value=f8amount,
script_hash=scripthash_to)
tx = ContractTransaction(outputs=[output])
ttx = wallet.MakeTransaction(tx=tx,
change_address=None,
fee=fee,
from_addr=scripthash_from)
if ttx is None:
print(
"insufficient funds, were funds already moved from multi-sig contract?"
)
return None
context = ContractParametersContext(tx, isMultiSig=True)
wallet.Sign(context)
if context.Completed:
print("Something went wrong, multi-sig transaction failed")
return None
else:
print("Transaction initiated")
return json.dumps(context.ToJson(), separators=(',', ':'))
def sign_context(binary_tx, private):
wallet = Wallet(b'', b'0' * 32, True)
wallet.CreateKey(binascii.unhexlify(private))
script_hash = WalletContract.CreateSignatureContract(
list(wallet._keys.values())[0].PublicKey)
wallet._contracts[script_hash.ScriptHash.ToBytes()] = script_hash
tx = ContractTransaction.DeserializeFromBufer(
binascii.unhexlify(binary_tx))
context = ContractParametersContext(tx, isMultiSig=False)
context.ScriptHashes = [script_hash.ScriptHash]
wallet.Sign(context)
return [x.ToJson() for x in context.GetScripts()]
def InvokeContract(wallet, tx, fee=Fixed8.Zero(), from_addr=None, owners=None):
if from_addr is not None:
from_addr = PromptUtils.lookup_addr_str(wallet, from_addr)
try:
wallet_tx = wallet.MakeTransaction(tx=tx, fee=fee, use_standard=True, from_addr=from_addr)
except ValueError:
print("Insufficient funds")
return False
if wallet_tx:
if owners:
for owner in list(owners):
wallet_tx.Attributes.append(TransactionAttribute(usage=TransactionAttributeUsage.Script, data=owner))
wallet_tx.Attributes = make_unique_script_attr(tx.Attributes)
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if owners:
gather_signatures(context, wallet_tx, list(owners))
if context.Completed:
wallet_tx.scripts = context.GetScripts()
passed, reason = validate_simple_policy(wallet_tx)
if not passed:
print(reason)
return False
nodemgr = NodeManager()
relayed = nodemgr.relay(wallet_tx)
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def Sign(self, NEP2orPrivateKey, NEP2password=None, multisig_args=[]):
"""
Sign the raw transaction
Args:
NEP2orPrivateKey: (str) the NEP2 or PrivateKey string from the address you are sending from. NOTE: Assumes WIF if NEP2password is None.
NEP2password: (str, optional) the NEP2 password associated with the NEP2 key string. Defaults to None.
multisig_args: (list, optional) the arguments for importing a multsig address (e.g. [<owner pubkey>, <num required sigs>, [<signing pubkey>, ...]])
"""
temp_path = "temp_wallet.wallet"
temp_password = "******"
wallet = UserWallet.Create(temp_path,
to_aes_key(temp_password),
generate_default_key=False)
if NEP2password:
private_key = KeyPair.PrivateKeyFromNEP2(NEP2orWIF, NEP2password)
else:
private_key = binascii.unhexlify(NEP2orPrivateKey)
wallet.CreateKey(private_key)
if multisig_args: # import a multisig address
verification_contract = Contract.CreateMultiSigContract(
Crypto.ToScriptHash(multisig_args[0], unhex=True),
multisig_args[1], multisig_args[2])
wallet.AddContract(verification_contract)
if self.Type == b'\xd1' and not self.SOURCE_SCRIPTHASH: # in case of an invocation with no funds transfer
context = ContractParametersContext(self)
elif not self._context: # used during transactions involving a funds transfer
signer_contract = wallet.GetContract(self.SOURCE_SCRIPTHASH)
context = ContractParametersContext(
self, isMultiSig=signer_contract.IsMultiSigContract)
else:
context = self._context # used for a follow-on signature for a multi-sig transaction
wallet.Sign(context)
if context.Completed:
self.scripts = context.GetScripts()
self.Validate() # ensure the tx is ready to be relayed
elif context.ContextItems:
self._context = context
print(
"Transaction initiated, but the signature is incomplete. Sign again with another valid multi-sig keypair."
)
else:
raise SignatureError("Unable to sign transaction.")
wallet.Close()
wallet = None
os.remove(temp_path)
def test_9_send_neo_tx(self):
wallet = self.GetWallet1()
tx = ContractTransaction()
tx.outputs = [TransactionOutput(Blockchain.SystemShare().Hash, Fixed8.FromDecimal(10.0), self.import_watch_addr)]
tx = wallet.MakeTransaction(tx)
cpc = ContractParametersContext(tx)
wallet.Sign(cpc)
tx.scripts = cpc.GetScripts()
result = NodeLeader.Instance().Relay(tx)
self.assertEqual(result, True)
def sign_and_finish(self, wallet, jsn):
context = ContractParametersContext.FromJson(jsn)
if context is None:
print("Failed to parse JSON")
return None
wallet.Sign(context)
if context.Completed:
print("Signature complete, relaying...")
tx = context.Verifiable
tx.scripts = context.GetScripts()
wallet.SaveTransaction(tx)
print("will send tx: %s " % json.dumps(tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
print("Relayed Tx: %s " % tx.Hash.ToString())
self.wait_for_tx(tx)
return ('success')
else:
print("Could not relay tx %s " % tx.Hash.ToString())
return ('fail')
else:
print("Transaction signed, but the signature is still incomplete")
return (json.dumps(context.ToJson(), separators=(',', ':')))
def _generate_tx(self, amount):
wallet = self.GetWallet1()
output = TransactionOutput(
AssetId=Blockchain.SystemShare().Hash,
Value=amount,
script_hash=LeaderTestCase.wallet_1_script_hash)
contract_tx = ContractTransaction(outputs=[output])
try:
wallet.MakeTransaction(contract_tx)
except ValueError:
pass
ctx = ContractParametersContext(contract_tx)
wallet.Sign(ctx)
contract_tx.scripts = ctx.GetScripts()
return contract_tx
def _make_tx(self, addr_to):
"""
process transaction
"""
output1 = TransactionOutput(
AssetId = Blockchain.SystemCoin().Hash, # hash of the Gas transaction
Value = Fixed8.FromDecimal(2000), # this is how much gas each request will provide
script_hash = addr_to # address to send the Gas to
)
output2 = TransactionOutput(
AssetId = Blockchain.SystemShare().Hash, # hash of the NEO token transaction
Value = Fixed8.FromDecimal(100), # this is how much NEO each request will provide
script_hash = addr_to # address to send the NEO tokens too
)
contract_tx = ContractTransaction() # creates an instance of the transaction
contract_tx.outputs = [output1, output2] # outputs the data from the transaction
contract_tx = self.wallet.MakeTransaction(contract_tx) # processes transaction
print("tx to json: %s " % json.dumps(contract_tx.ToJson(), indent=4))
context = ContractParametersContext(contract_tx, isMultiSig=False) # getting the contract context (listed above)
self.wallet.Sign(context) # signs the contract
if context.Completed:
contract_tx.scripts = context.GetScripts() # gets the script hashes from the context
self.wallet.SaveTransaction(contract_tx) # update the state of the coins in the wallet
# print("will send tx: %s " % json.dumps(tx.ToJson(),indent=4))
relayed = NodeLeader.Instance().Relay(contract_tx) # relay the transaction to this instance of the node leader
if relayed: # if tx relay was successful, inform the user and return the contract transaction
print("Relayed Tx: %s " % contract_tx.Hash.ToString())
return contract_tx
else:
print("Could not relay tx %s " % contract_tx.Hash.ToString())
else:
print("Transaction initiated, but the signature is incomplete")
print(json.dumps(context.ToJson(), separators=(',', ':')))
return False
return False
def _make_tx(self, addr_to):
output1 = TransactionOutput(
AssetId = Blockchain.SystemCoin().Hash,
Value = Fixed8.FromDecimal(2000),
script_hash = addr_to
)
output2 = TransactionOutput(
AssetId = Blockchain.SystemShare().Hash,
Value = Fixed8.FromDecimal(100),
script_hash = addr_to
)
contract_tx = ContractTransaction()
contract_tx.outputs = [output1, output2]
contract_tx = self.wallet.MakeTransaction(contract_tx)
print("tx to json: %s " % json.dumps(contract_tx.ToJson(), indent=4))
context = ContractParametersContext(contract_tx, isMultiSig=False)
self.wallet.Sign(context)
if context.Completed:
contract_tx.scripts = context.GetScripts()
self.wallet.SaveTransaction(contract_tx)
# print("will send tx: %s " % json.dumps(tx.ToJson(),indent=4))
relayed = NodeLeader.Instance().Relay(contract_tx)
if relayed:
print("Relayed Tx: %s " % contract_tx.Hash.ToString())
return contract_tx
else:
print("Could not relay tx %s " % contract_tx.Hash.ToString())
else:
print("Transaction initiated, but the signature is incomplete")
print(json.dumps(context.ToJson(), separators=(',', ':')))
return False
return False
def InvokeContract(wallet, tx, fee=Fixed8.Zero(), from_addr=None):
if from_addr is not None:
from_addr = lookup_addr_str(wallet, from_addr)
wallet_tx = wallet.MakeTransaction(tx=tx,
fee=fee,
use_standard=True,
from_addr=from_addr)
# pdb.set_trace()
if wallet_tx:
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("SENDING TX: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(wallet_tx)
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def PerformWithdrawTx(wallet, tx, contract_hash):
requestor_contract = wallet.GetDefaultContract()
withdraw_contract_state = Blockchain.Default().GetContract(
contract_hash.encode('utf-8'))
reedeem_script = withdraw_contract_state.Code.Script.hex()
# there has to be at least 1 param, and the first
# one needs to be a signature param
param_list = bytearray(b'\x00')
# if there's more than one param
# we set the first parameter to be the signature param
if len(withdraw_contract_state.Code.ParameterList) > 1:
param_list = bytearray(withdraw_contract_state.Code.ParameterList)
param_list[0] = 0
verification_contract = Contract.Create(reedeem_script, param_list,
requestor_contract.PublicKeyHash)
context = ContractParametersContext(tx)
context.Add(verification_contract, 0, bytearray(0))
if context.Completed:
tx.scripts = context.GetScripts()
print("withdraw tx %s " % json.dumps(tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
# wallet.SaveTransaction(tx) # dont save this tx
print("Relayed Withdrawal Tx: %s " % tx.Hash.ToString())
return tx
else:
print("Could not relay witdrawal tx %s " % tx.Hash.ToString())
else:
print("Incomplete signature")
return False
def testNeoClient():
invocation_tx = InvocationTransaction()
smartcontract_scripthash = UInt160.ParseString(CONTRACT_HASH)
sb = ScriptBuilder()
sb.EmitAppCallWithOperationAndArgs(
smartcontract_scripthash, 'onboard',
[b'Munich', b'*****@*****.**', b'xxx'])
invocation_tx.Script = binascii.unhexlify(sb.ToArray())
wallet = UserWallet.Create('neo-privnet.wallet',
to_aes_key('coz'),
generate_default_key=False)
private_key = KeyPair.PrivateKeyFromWIF(
"KxDgvEKzgSBPPfuVfw67oPQBSjidEiqTHURKSDL1R7yGaGYAeYnr")
wallet.CreateKey(private_key)
context = ContractParametersContext(invocation_tx)
wallet.Sign(context)
invocation_tx.scripts = context.GetScripts()
raw_tx = invocation_tx.ToArray()
payload = {
"jsonrpc": "2.0",
"id": 1,
"method": "sendrawtransaction",
"params": [raw_tx.decode("ascii")]
}
res = requests.post("http://neo-nodes:30333/testNeoConnection",
json=payload)
print("received POST result")
print(res.status_code)
result = res.text
print(result)
return json.dumps({
"raw_tx": raw_tx.decode("ascii"),
"result": result,
"payload": payload,
})
def InvokeContract(wallet, tx, fee=Fixed8.Zero()):
wallet_tx = wallet.MakeTransaction(tx=tx, fee=fee, use_standard=True)
# pdb.set_trace()
if wallet_tx:
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("SENDING TX: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
# check if we can save the tx first
save_tx = wallet.SaveTransaction(wallet_tx)
if save_tx:
relayed = NodeLeader.Instance().Relay(wallet_tx)
else:
print("Could not save tx to wallet, will not send tx")
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def SendBlog(wallet, tx, fee=Fixed8.Zero(), from_addr=None, privatekey=None):
wallet_tx = wallet.MakeTransaction(tx=tx,
fee=fee,
use_standard=False,
from_addr=from_addr)
# wallet_tx = tx
if wallet_tx:
context = ContractParametersContext(wallet_tx)
if privatekey != None:
prikey = KeyPair.PrivateKeyFromWIF(privatekey)
kp = KeyPair(prikey)
wallet.Sign(context, kp)
else:
wallet.Sign(context)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("SENDING TX: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(wallet_tx)
print("Tx: %s " % wallet_tx.ToJson())
if relayed:
print("Relayed Tx: %s " % wallet_tx.Hash.ToString())
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
print("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
print("Incomplete signature")
else:
print("Insufficient funds")
return False
def test_9_send_neo_tx(self):
with patch('neo.Network.node.NeoNode.relay', return_value=self.async_return(True)):
wallet = self.GetWallet1()
tx = ContractTransaction()
tx.outputs = [TransactionOutput(Blockchain.SystemShare().Hash, Fixed8.FromDecimal(10.0), self.import_watch_addr)]
try:
tx = wallet.MakeTransaction(tx)
except (ValueError):
pass
cpc = ContractParametersContext(tx)
wallet.Sign(cpc)
tx.scripts = cpc.GetScripts()
nodemgr = NodeManager()
# we need at least 1 node for relay to be mocked
nodemgr.nodes = [NeoNode(object, object)]
result = nodemgr.relay(tx)
self.assertEqual(result, True)
def InvokeContract(wallet, tx, fee=Fixed8.Zero()):
wallet_tx = wallet.MakeTransaction(tx=tx, fee=fee, use_standard=True)
# pdb.set_trace()
if wallet_tx:
context = ContractParametersContext(wallet_tx)
wallet.Sign(context)
if context.Completed:
wallet_tx.scripts = context.GetScripts()
relayed = False
# print("SENDING TX: %s " % json.dumps(wallet_tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(wallet_tx)
if relayed:
logger.info("Relayed Tx: %s " % wallet_tx.Hash.ToString())
wallet.SaveTransaction(wallet_tx)
return wallet_tx
else:
logger.error("Could not relay tx %s " % wallet_tx.Hash.ToString())
raise RuntimeError("Could not relay tx %s " % wallet_tx.Hash.ToString())
else:
logger.error("Incomplete signature")
raise RuntimeError('Incomplete signature')
else:
logger.error("Insufficient funds")
raise RuntimeError('Insufficient funds')
return False
def process_transaction(self, contract_tx, fee=None, address_from=None, change_addr=None):
standard_contract = self.wallet.GetStandardAddress()
signer_contract = self.wallet.GetContract(standard_contract)
try:
tx = self.wallet.MakeTransaction(tx=contract_tx,
change_address=change_addr,
fee=fee,
from_addr=address_from)
except ValueError:
# if not enough unspents while fully synced
raise JsonRpcError(-300, "Insufficient funds")
if tx is None:
# if not enough unspents while not being fully synced
raise JsonRpcError(-300, "Insufficient funds")
data = standard_contract.Data
tx.Attributes = [
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=data)
]
context = ContractParametersContext(
tx, isMultiSig=signer_contract.IsMultiSigContract
)
self.wallet.Sign(context)
if context.Completed:
tx.scripts = context.GetScripts()
passed, reason = validate_simple_policy(tx)
if not passed:
raise JsonRpcError(-32602, reason)
relayed = self.nodemgr.relay(tx)
if relayed:
self.wallet.SaveTransaction(tx)
return tx.ToJson()
else:
raise JsonRpcError(-32602, "Invalid params")
else:
return context.ToJson()
def sign_and_finish(wallet, jsn):
context = ContractParametersContext.FromJson(jsn)
if context is None:
print("Failed to parse JSON")
return None
wallet.Sign(context)
if context.Completed:
print("Signature complete, relaying...")
tx = context.Verifiable
tx.scripts = context.GetScripts()
wallet.SaveTransaction(tx)
print("will send tx: %s " % json.dumps(tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
print("Relayed Tx: %s " % tx.Hash.ToString())
foundtx = False
count = 0
while foundtx == False and count < 100:
_tx, height = Blockchain.Default().GetTransaction(
tx.Hash.ToString())
if height > -1:
foundtx = True
print(
"Waiting for tx {} to show up on blockchain...".format(
tx.Hash.ToString()))
time.sleep(3)
count += 1
if foundtx == True:
return ('success')
else:
print(
"Transaction was relayed but never accepted by consensus node"
)
return ('fail')
else:
print("Could not relay tx %s " % tx.Hash.ToString())
return ('fail')
else:
print("Transaction signed, but the signature is still incomplete")
return (json.dumps(context.ToJson(), separators=(',', ':')))
def parse_and_sign(wallet, jsn):
try:
context = ContractParametersContext.FromJson(jsn)
if context is None:
print("Failed to parse JSON")
return
wallet.Sign(context)
if context.Completed:
print("Signature complete, relaying...")
tx = context.Verifiable
tx.scripts = context.GetScripts()
wallet.SaveTransaction(tx)
print("will send tx: %s " % json.dumps(tx.ToJson(), indent=4))
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
print("Relayed Tx: %s " % tx.Hash.ToString())
else:
print("Could not relay tx %s " % tx.Hash.ToString())
return
else:
print("Transaction initiated, but the signature is incomplete")
print(json.dumps(context.ToJson(), separators=(',', ':')))
return
except Exception as e:
print("could not send: %s " % e)
traceback.print_stack()
traceback.print_exc()
def process_transaction(wallet,
contract_tx,
scripthash_from=None,
scripthash_change=None,
fee=None,
owners=None,
user_tx_attributes=None):
try:
tx = wallet.MakeTransaction(tx=contract_tx,
change_address=scripthash_change,
fee=fee,
from_addr=scripthash_from)
if tx is None:
logger.debug("insufficient funds")
return False
# password prompt
passwd = prompt("[Password]> ", is_password=True)
if not wallet.ValidatePassword(passwd):
print("incorrect password")
return False
standard_contract = wallet.GetStandardAddress()
if scripthash_from is not None:
signer_contract = wallet.GetContract(scripthash_from)
else:
signer_contract = wallet.GetContract(standard_contract)
if not signer_contract.IsMultiSigContract and owners is None:
data = standard_contract.Data
tx.Attributes = [
TransactionAttribute(usage=TransactionAttributeUsage.Script,
data=data)
]
# insert any additional user specified tx attributes
tx.Attributes = tx.Attributes + user_tx_attributes
if owners:
owners = list(owners)
for owner in owners:
tx.Attributes.append(
TransactionAttribute(
usage=TransactionAttributeUsage.Script, data=owner))
context = ContractParametersContext(
tx, isMultiSig=signer_contract.IsMultiSigContract)
wallet.Sign(context)
if owners:
owners = list(owners)
gather_signatures(context, tx, owners)
print(context.ScriptHashes)
for s in context.GetScripts():
print(s.ToJson())
print(tx.ToJson())
if context.Completed:
tx.scripts = context.GetScripts()
# print("will send tx: %s " % json.dumps(tx.ToJson(),indent=4))
relayed = NodeLeader.Instance().Relay(tx)
if relayed:
wallet.SaveTransaction(tx)
print("Relayed Tx: %s " % tx.Hash.ToString())
return tx
else:
print("Could not relay tx %s " % tx.Hash.ToString())
else:
print("Transaction initiated, but the signature is incomplete")
print(json.dumps(context.ToJson(), separators=(',', ':')))
return False
except Exception as e:
print("could not send: %s " % e)
traceback.print_stack()
traceback.print_exc()
return False
