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txSigner.py
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import base58
import base64
import struct
import pywaves as pw
import pywaves.crypto as crypto
from .protobuf.waves import transaction_pb2
from .protobuf.waves import recipient_pb2
from .protobuf.waves import amount_pb2
class TxSigner:
def __init__(self, pywaves=pw):
self.pywaves = pywaves
def signTx(self, tx, privateKey):
if tx['type'] == 3 and 'script' in tx:
self.signType03SmartTx(tx, privateKey)
elif tx['type'] == 3:
self.signType03Tx(tx, privateKey)
elif tx['type'] == 4 and ('assetId' not in tx or tx['assetId'] == None or tx['assetId'] == 'null'):
self.signType04WavesTx(tx, privateKey)
elif tx['type'] == 4 and ('assetId' in tx and tx['assetId'] != None):
self.signType04AssetTx(tx, privateKey)
elif tx['type'] == 5:
self.signType05Tx(tx, privateKey)
elif tx['type'] == 6:
self.signType06Tx(tx, privateKey)
elif tx['type'] == 8:
self.signType08Tx(tx, privateKey)
elif tx['type'] == 9:
self.signType09Tx(tx, privateKey)
elif tx['type'] == 10:
self.signType10Tx(tx, privateKey)
elif tx['type'] == 11 and ('assetId' not in tx or tx['assetId'] == None or tx['assetId'] == ''):
self.signType11TxWaves(tx, privateKey)
elif tx['type'] == 11 and ('assetId' in tx and tx['assetId'] != None):
self.signType11TxAssets(tx, privateKey)
elif tx['type'] == 12 and (tx['data'][0]['value'] == None):
self.signType12DeleteTx(tx, privateKey)
elif tx['type'] == 12:
self.signType12Tx(tx, privateKey)
elif tx['type'] == 13:
self.signType13Tx(tx, privateKey)
elif tx['type'] == 14:
self.signType14Tx(tx, privateKey)
elif tx['type'] == 15:
self.signType15Tx(tx, privateKey)
elif tx['type'] == 16:
self.signType16Tx(tx, privateKey)
elif tx['type'] == 17:
self.signType17Tx(tx, privateKey)
def signType04WavesTx(self, tx, privateKey):
transferTx = transaction_pb2.TransferTransactionData()
recipient = recipient_pb2.Recipient()
recipient.public_key_hash = base58.b58decode(tx['recipient'])[2:22]
transferTx.recipient.CopyFrom(recipient)
amount = amount_pb2.Amount()
amount.amount = tx['amount']
if not ('assetId' not in tx or tx['assetId'] == 'null'):
amount.asset_id = base58.b58decode(tx['assetId'])
transferTx.amount.CopyFrom(amount)
transferTx.attachment = base58.b58decode(tx['attachment'])
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
if 'feeAssetId' in tx and tx['feeAssetId'] != '' and tx['feeAssetId'] != 'null' and tx['feeAssetId'] != None:
txFee.asset_id = base58.b58decode(tx['feeAssetId'])
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.transfer.CopyFrom(transferTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType04AssetTx(self, tx, privateKey):
transferTx = transaction_pb2.TransferTransactionData()
recipient = recipient_pb2.Recipient()
recipient.public_key_hash = base58.b58decode(tx['recipient'])[2:22]
transferTx.recipient.CopyFrom(recipient)
amount = amount_pb2.Amount()
amount.amount = tx['amount']
if not ('assetId' not in tx or tx['assetId'] == 'null' or tx['assetId'] == None or tx['assetId'] == ''):
amount.asset_id = base58.b58decode(tx['assetId'])
transferTx.amount.CopyFrom(amount)
if 'attachment' in tx and tx['attachment'] != '':
transferTx.attachment = base58.b58decode(tx['attachment'])
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
if 'feeAssetId' in tx and tx['feeAssetId'] != '' and tx['feeAssetId'] != 'null' and tx['feeAssetId'] != None:
txFee.asset_id = base58.b58decode(tx['feeAssetId'])
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.transfer.CopyFrom(transferTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType03Tx(self, tx, privateKey):
issueTx = transaction_pb2.IssueTransactionData()
issueTx.name = tx['name']
issueTx.description = tx['description']
issueTx.amount = tx['quantity']
issueTx.decimals = tx['decimals']
issueTx.reissuable = tx['reissuable']
issueTx.script = b''
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.issue.CopyFrom(issueTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType03SmartTx(self, tx, privateKey):
compiledScript = base64.b64decode(tx['script'][7:])
issueTx = transaction_pb2.IssueTransactionData()
issueTx.name = tx['name']
issueTx.description = tx['description']
issueTx.amount = tx['quantity']
issueTx.decimals = tx['decimals']
issueTx.reissuable = tx['reissuable']
issueTx.script = compiledScript
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.issue.CopyFrom(issueTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType05Tx(self, tx, privateKey):
reissueTx = transaction_pb2.ReissueTransactionData()
newAssetAmount = amount_pb2.Amount()
newAssetAmount.amount = tx['quantity']
newAssetAmount.asset_id = base58.b58decode(tx['assetId'])
reissueTx.asset_amount.CopyFrom(newAssetAmount)
reissueTx.reissuable = tx['reissuable']
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.reissue.CopyFrom(reissueTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType06Tx(self, tx, privateKey):
burnTx = transaction_pb2.BurnTransactionData()
newAssetAmount = amount_pb2.Amount()
newAssetAmount.amount = tx['quantity']
newAssetAmount.asset_id = base58.b58decode(tx['assetId'])
burnTx.asset_amount.CopyFrom(newAssetAmount)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.burn.CopyFrom(burnTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType08Tx(self, tx, privateKey):
leaseTx = transaction_pb2.LeaseTransactionData()
recipient = recipient_pb2.Recipient()
recipient.public_key_hash = base58.b58decode(tx['recipient'])[2:22]
leaseTx.recipient.CopyFrom(recipient)
leaseTx.amount = tx['amount']
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.lease.CopyFrom(leaseTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType09Tx(self, tx, privateKey):
leaseCancelTx = transaction_pb2.LeaseCancelTransactionData()
leaseCancelTx.lease_id = base58.b58decode(tx['txId'])
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.lease_cancel.CopyFrom(leaseCancelTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
print(tx)
def signType10Tx(self, tx, privateKey):
aliasTx = transaction_pb2.CreateAliasTransactionData()
aliasTx.alias = tx['alias']
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.create_alias.CopyFrom(aliasTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType11TxWaves(self, tx, privateKey):
massTransferTx = transaction_pb2.MassTransferTransactionData()
massTransferTx.asset_id = base58.b58decode(tx['assetId'])
if 'attachment' in tx and tx['attachment'] != '':
attachment = transaction_pb2.Attachment()
attachment.string_value = base58.b58decode(tx['attachment'])
massTransferTx.attachment.CopyFrom(attachment)
for transfer in tx['transfers']:
recipient = recipient_pb2.Recipient()
recipient.public_key_hash = base58.b58decode(transfer['recipient'])[2:22]
transferObject = transaction_pb2.MassTransferTransactionData.Transfer()
transferObject.recipient.CopyFrom(recipient)
transferObject.amount = transfer['amount']
massTransferTx.transfers.append(transferObject)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.mass_transfer.CopyFrom(massTransferTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType11TxAssets(self, tx, privateKey):
massTransferTx = transaction_pb2.MassTransferTransactionData()
massTransferTx.asset_id = base58.b58decode(tx['assetId'])
if 'attachment' in tx and tx['attachment'] != '':
attachment = transaction_pb2.Attachment()
attachment.string_value = base58.b58decode(tx['attachment'])
massTransferTx.attachment.CopyFrom(attachment)
for transfer in tx['transfers']:
recipient = recipient_pb2.Recipient()
recipient.public_key_hash = base58.b58decode(transfer['recipient'])[2:22]
transferObject = transaction_pb2.MassTransferTransactionData.Transfer()
transferObject.recipient.CopyFrom(recipient)
transferObject.amount = transfer['amount']
massTransferTx.transfers.append(transferObject)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.mass_transfer.CopyFrom(massTransferTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType12DeleteTx(self, tx, privateKey):
dataTransaction = transaction_pb2.DataTransactionData()
entry = transaction_pb2.DataTransactionData.DataEntry()
entry.key = tx['data'][0]['key']
dataTransaction.data.append(entry)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.data_transaction.CopyFrom(dataTransaction)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType12Tx(self, tx, privateKey):
dataTransaction = transaction_pb2.DataTransactionData()
for d in tx['data']:
entry = transaction_pb2.DataTransactionData.DataEntry()
if d['type'] == 'boolean':
entry.key = d['key']
entry.bool_value = d['value']
elif d['type'] == 'string':
entry.key = d['key']
entry.string_value = d['value']
elif d['type'] == 'integer':
entry.key = d['key']
entry.int_value = d['value']
elif d['type'] == 'binary':
entry.key = d['key']
entry.binary_value = base64.b64decode(d['value'][7:])
dataTransaction.data.append(entry)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.data_transaction.CopyFrom(dataTransaction)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType14Tx(self, tx, privateKey):
sponsorTx = transaction_pb2.SponsorFeeTransactionData()
minFee = amount_pb2.Amount()
minFee.amount = tx['minSponsoredAssetFee']
minFee.asset_id = base58.b58decode(tx['assetId'])
sponsorTx.min_fee.CopyFrom(minFee)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.sponsor_fee.CopyFrom(sponsorTx)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType13Tx(self, tx, privateKey):
setScriptTransaction = transaction_pb2.SetScriptTransactionData()
setScriptTransaction.script = base64.b64decode(tx['script'])
tx_fee = amount_pb2.Amount()
tx_fee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(tx_fee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.set_script.CopyFrom(setScriptTransaction)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType15Tx(self, tx, privateKey):
compiledScript = base64.b64decode(tx['script'][7:])
setAssetScriptTransaction = transaction_pb2.SetAssetScriptTransactionData()
setAssetScriptTransaction.script = compiledScript
setAssetScriptTransaction.asset_id = base58.b58decode(tx['assetId'])
tx_fee = amount_pb2.Amount()
tx_fee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(tx_fee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.set_asset_script.CopyFrom(setAssetScriptTransaction)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType17Tx(self, tx, privateKey):
decodedAssetId = base58.b58decode(tx['assetId'])
updateInfo = transaction_pb2.UpdateAssetInfoTransactionData()
updateInfo.asset_id = decodedAssetId
updateInfo.name = tx['name']
updateInfo.description = tx['description']
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.update_asset_info.CopyFrom(updateInfo)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)
def signType16Tx(self, tx, privateKey):
parameterBytes = b''
if 'call' in tx:
for param in tx['call']['args']:
if param['type'] == 'integer':
parameterBytes += b'\0' + struct.pack(">q", param['value'])
elif param['type'] == 'binary':
value = base64.b64decode(param['value'][7:])
parameterBytes += b'\1' + struct.pack(">I", len(value)) + value
elif param['type'] == 'string':
parameterBytes += b'\2' + struct.pack(">I", len(crypto.str2bytes(param['value']))) + crypto.str2bytes(
param['value'])
elif param['type'] == 'boolean':
if param['value'] == True:
parameterBytes += b'\6'
else:
parameterBytes += b'\7'
elif param['type'] == 'list':
parameterBytes += b'\x0b'
parameterBytes += struct.pack(">I", len(param['value']))
for nestedParam in param['value']:
if nestedParam['type'] == 'integer':
parameterBytes += b'\0' + struct.pack(">Q", nestedParam['value'])
elif nestedParam['type'] == 'binary':
value = base64.b64decode(nestedParam['value'][7:])
parameterBytes += b'\1' + struct.pack(">I", len(value)) + value
elif nestedParam['type'] == 'string':
parameterBytes += b'\2' + struct.pack(">I", len(crypto.str2bytes(
nestedParam['value']))) + crypto.str2bytes(nestedParam['value'])
elif nestedParam['type'] == 'boolean':
if nestedParam['value'] == True:
parameterBytes += b'\6'
else:
parameterBytes += b'\7'
invoke = transaction_pb2.InvokeScriptTransactionData()
for payment in tx['payment']:
amount = amount_pb2.Amount()
amount.amount = payment['amount']
if not ('assetId' not in payment or payment['assetId'] == 'null' or payment['assetId'] == None or payment['assetId'] == ''):
amount.asset_id = base58.b58decode(payment['assetId'])
invoke.payments.append(amount)
dApp = recipient_pb2.Recipient()
dApp.public_key_hash = base58.b58decode(tx['dApp'])[2:22]
if 'call' in tx:
invoke.function_call = b'\x01' + \
b'\x09' + \
b'\x01' + \
struct.pack(">L", len(crypto.str2bytes(tx['call']['function']))) + \
crypto.str2bytes(tx['call']['function']) + \
struct.pack(">I", len(tx['call']['args'])) + \
parameterBytes
else:
invoke.function_call = b'\x00'
invoke.d_app.CopyFrom(dApp)
txFee = amount_pb2.Amount()
txFee.amount = tx['fee']
if 'feeAssetId' in tx and tx['feeAssetId'] != '' and tx['feeAssetId'] != 'null' and tx['feeAssetId'] != None:
txFee.asset_id = base58.b58decode(tx['feeAssetId'])
transaction = transaction_pb2.Transaction()
transaction.chain_id = ord(self.pywaves.CHAIN_ID)
transaction.sender_public_key = base58.b58decode(tx['senderPublicKey'])
transaction.fee.CopyFrom(txFee)
transaction.timestamp = tx['timestamp']
transaction.version = tx['version']
transaction.invoke_script.CopyFrom(invoke)
proof = crypto.sign(privateKey, transaction.SerializeToString())
tx['proofs'].append(proof)