def get_transaction_document(current_block: dict, source: dict,
from_pubkey: str, to_pubkey: str) -> Transaction:
"""
Return a Transaction document
:param current_block: Current block infos
:param source: Source to send
:param from_pubkey: Public key of the issuer
:param to_pubkey: Public key of the receiver
:return: Transaction
"""
# list of inputs (sources)
inputs = [
InputSource(
amount=source["amount"],
base=source["base"],
source=source["type"],
origin_id=source["identifier"],
index=source["noffset"],
)
]
# list of issuers of the inputs
issuers = [from_pubkey]
# list of unlocks of the inputs
unlocks = [
Unlock(
# inputs[index]
index=0,
# unlock inputs[index] if signatures[0] is from public key of issuers[0]
parameters=[SIGParameter(0)],
)
]
# lists of outputs
outputs = [
OutputSource(
amount=source["amount"],
base=source["base"],
condition="SIG({0})".format(to_pubkey),
)
]
transaction = Transaction(
version=TRANSACTION_VERSION,
currency=current_block["currency"],
blockstamp=BlockUID(current_block["number"], current_block["hash"]),
locktime=0,
issuers=issuers,
inputs=inputs,
unlocks=unlocks,
outputs=outputs,
comment="",
signatures=[],
)
return transaction
def get_transaction_document(current_block, source, from_pubkey, to_pubkey):
"""
Return a Transaction document
:param dict current_block: Current block infos
:param dict source: Source to send
:param str from_pubkey: Public key of the issuer
:param str to_pubkey: Public key of the receiver
:return: Transaction
"""
# list of inputs (sources)
inputs = [
InputSource(amount=source['amount'],
base=source['base'],
source=source['type'],
origin_id=source['identifier'],
index=source['noffset'])
]
# list of issuers of the inputs
issuers = [from_pubkey]
# list of unlocks of the inputs
unlocks = [
Unlock(
# inputs[index]
index=0,
# unlock inputs[index] if signatures[0] is from public key of issuers[0]
parameters=[SIGParameter(0)])
]
# lists of outputs
outputs = [
OutputSource(
amount=source['amount'],
base=source['base'],
# only the receiver of the output can use it as input in another transaction
conditions=Condition.token(SIG.token(to_pubkey)))
]
transaction = Transaction(version=TRANSACTION_VERSION,
currency=current_block['currency'],
blockstamp=BlockUID(current_block['number'],
current_block['hash']),
locktime=0,
issuers=issuers,
inputs=inputs,
unlocks=unlocks,
outputs=outputs,
comment='',
signatures=None)
return transaction
def tx_unlocks(self, sources):
"""
Get unlocks to generate a transaction with a given amount of money
:param list sources: The sources used to send the given amount of money
:return: The list of unlocks to use in the transaction document
"""
unlocks = []
for i, s in enumerate(sources):
unlocks.append(Unlock(i, [SIGParameter(0)]))
return unlocks
def test_transaction_document_generation(self):
transaction = Transaction(
version=10,
currency="gtest",
blockstamp=BlockUID(
8979, "000041DF0CCA173F09B5FBA48F619D4BC934F12ADF1D0B798639EB2149C4A8CC"
),
locktime=0,
issuers=list("8kXygUHh1vLjmcRzXVM86t38EL8dfFJgfBeHmkaWLamu"),
inputs=[InputSource.from_inline(input_source_str)],
unlocks=[Unlock(index=0, parameters=[SIGParameter(0)])],
outputs=[OutputSource.from_inline(output_source_str)],
comment="",
signatures=[],
)
self.assertTrue(transaction.time is None)
self.assertTrue(transaction.currency == "gtest")
self.assertTrue(transaction.inputs[0].amount == 30)
def generate_unlocks(listinput):
unlocks = list()
for i in range(0, len(listinput)):
unlocks.append(Unlock(index=i, parameters=[SIGParameter(0)]))
return unlocks
def test_unlock(self):
unlock1 = Unlock(0, [SIGParameter(0)])
unlock2 = Unlock.from_inline("0:SIG(0)")
self.assertEqual(unlock1, unlock2)
10000,
0,
"T",
"B37D161185A760FD81C3242D73FABD3D01F4BD9EAD98C2842061A75BAD4DFA61",
1,
),
InputSource(
257,
0,
"T",
"16F1CF9C9B89BB8C34A945F56073AB3C3ACFD858D5FA420047BA7AED1575D1FE",
1,
),
],
unlocks=[
Unlock(index=0, parameters=[SIGParameter(0)]),
Unlock(index=1, parameters=[SIGParameter(0)]),
],
outputs=[
OutputSource(
amount=str(1000),
base=0,
condition="SIG(DBM6F5ChMJzpmkUdL5zD9UXKExmZGfQ1AgPDQy4MxSBw)",
),
OutputSource(
amount=str(4000),
base=0,
condition="SIG(4szFkvQ5tzzhwcfUtZD32hdoG2ZzhvG3ZtfR61yjnxdw)",
),
OutputSource(
amount=str(5000),