def unmake(batch_object,
signer_public_key=None,
batcher_public_key=BATCHER_KEY_PAIR.public_key):
"""Will unmake a batch_request, batch_list, batch, transaction
or payload, and return a list of the included messages.
Validation of signatures will occur if public keys are provided.
Only used for testing purposes.
"""
if isinstance(
batch_object,
client_batch_submit_pb2.ClientBatchSubmitRequest) or isinstance(
batch_object, batch_pb2.BatchList):
return list(
itertools.chain(*[unmake(batch)
for batch in batch_object.batches]))
if isinstance(batch_object, batch_pb2.Batch):
batch_header = batch_pb2.BatchHeader()
batch_header.ParseFromString(batch_object.header)
if batcher_public_key:
assert batch_header.signer_public_key == batcher_public_key
batcher_keypair = Key(public_key=batcher_public_key)
assert batcher_keypair.verify(
signature=batch_object.header_signature,
message=batch_object.header)
transactions = list(batch_object.transactions)
return [unmake_item(transaction) for transaction in transactions]
return [
unmake_item(
batch_object=batch_object,
signer_public_key=signer_public_key,
batcher_public_key=batcher_public_key,
)
]
def _assert_validator_transaction(self, public_key, target_file):
filename = os.path.join(self._temp_dir, target_file)
batch_list = batch_pb.BatchList()
with open(filename, 'rb') as batch_file:
batch_list.ParseFromString(batch_file.read())
self.assertEqual(1, len(batch_list.batches))
batch = batch_list.batches[0]
self.assertEqual(1, len(batch.transactions))
batch_header = batch_pb.BatchHeader()
batch_header.ParseFromString(batch.header)
self.assertEqual(public_key, batch_header.signer_public_key)
txn = batch.transactions[0]
txn_header = txn_pb.TransactionHeader()
txn_header.ParseFromString(txn.header)
self.assertEqual(public_key, txn_header.signer_public_key)
self.assertEqual('sawtooth_validator_registry', txn_header.family_name)
payload = vr_pb.ValidatorRegistryPayload()
payload.ParseFromString(txn.payload)
self._assert_key_state(payload.signup_info.poet_public_key)
def wrap_payload_in_txn_batch(txn_key, payload, header, batch_key):
"""Takes the serialized RBACPayload and creates a batch_list, batch
signature tuple.
Args:
txn_key (sawtooth_signing.Signer): The txn signer's key pair.
payload (bytes): The serialized RBACPayload.
header (bytes): The serialized TransactionHeader.
batch_key (sawtooth_signing.Signer): The batch signer's key pair.
Returns:
tuple
The zeroth element is a BatchList, and the first element is
the batch header_signature.
"""
transaction = transaction_pb2.Transaction(
payload=payload, header=header, header_signature=txn_key.sign(header))
transaction_ids = [transaction.header_signature]
logging.info(f"This is the transaction id {transaction_ids}")
batch_header = batch_pb2.BatchHeader(
signer_public_key=batch_key.get_public_key().as_hex(),
transaction_ids=[transaction.header_signature]).SerializeToString()
batch = batch_pb2.Batch(header=batch_header,
header_signature=batch_key.sign(batch_header),
transactions=[transaction])
batch_list_bytes = BatchList(batches=[batch]).SerializeToString()
return transaction_ids, [batch], batch.header_signature, batch_list_bytes
def assertValidBatch(self, batch, payload, signer_public_key,
batcher_public_key):
"""Check a batch is valid given a payload"""
self.assertIsInstance(batch, batch_pb2.Batch)
batch_header = batch_pb2.BatchHeader()
batch_header.ParseFromString(batch.header)
self.assertIsInstance(batch_header, batch_pb2.BatchHeader)
self.assertEqual(batch_header.signer_public_key, batcher_public_key)
batcher_keypair = Key(public_key=batcher_public_key)
self.assertTrue(
batcher_keypair.verify(
signature=batch.header_signature,
message=batch_header.SerializeToString(),
))
other_key = Key()
self.assertFalse(
other_key.verify(
signature=batch.header_signature,
message=batch_header.SerializeToString(),
))
transactions = list(batch.transactions)
self.assertEqual(len(transactions), 1)
self.assertValidTransaction(
transaction=transactions[0],
payload=payload,
signer_public_key=signer_public_key,
)
def _make_batch(self, payload, inputs, outputs, signer):
"""Creates and signs a batch.
"""
signer_public_key = signer.get_public_key().as_hex()
payload_bytes = payload.SerializeToString()
txn_header = transaction_pb2.TransactionHeader(
family_name=self._family_name,
family_version=self._family_version,
inputs=inputs,
outputs=outputs,
signer_public_key=signer_public_key,
batcher_public_key=signer_public_key,
payload_sha512=hashlib.sha512(payload_bytes).hexdigest())
txn_header_bytes = txn_header.SerializeToString()
txn = transaction_pb2.Transaction(
header=txn_header_bytes,
header_signature=signer.sign(txn_header_bytes),
payload=payload_bytes)
batch_header = batch_pb2.BatchHeader(
signer_public_key=signer_public_key,
transaction_ids=[txn.header_signature])
batch_header_bytes = batch_header.SerializeToString()
batch = batch_pb2.Batch(
header=batch_header_bytes,
header_signature=signer.sign(batch_header_bytes),
transactions=[txn])
return batch
def _batch_header(batch_key, transactions):
batch_header_bytes = batch_pb2.BatchHeader(
signer_public_key=batch_key.get_public_key().as_hex(),
transaction_ids=[txn.header_signature
for txn in transactions]).SerializeToString()
signature = batch_key.sign(batch_header_bytes)
return batch_header_bytes, signature
def make_batch(transaction, batcher_keypair=BATCHER_KEY_PAIR):
"""Batch a transaction"""
batch_header = batch_pb2.BatchHeader(
signer_public_key=batcher_keypair.public_key,
transaction_ids=[transaction.header_signature],
).SerializeToString()
return batch_pb2.Batch(
header=batch_header,
header_signature=batcher_keypair.sign(batch_header),
transactions=[transaction],
)
def make_batch_from_txns(transactions, signer_keypair):
""" Given a list of transactions, create a batch to be applied
on the Sawtooth blockchain.
"""
batch_header = batch_pb2.BatchHeader(
signer_public_key=signer_keypair.public_key,
transaction_ids=[txn.header_signature for txn in transactions],
).SerializeToString()
return batch_pb2.Batch(
header=batch_header,
header_signature=signer_keypair.sign(batch_header),
transactions=transactions,
)
def create_batch(transactions, private_key, public_key):
transaction_signatures = [t.header_signature for t in transactions]
header = batch_pb2.BatchHeader(signer_pubkey=public_key,
transaction_ids=transaction_signatures)
header_bytes = header.SerializeToString()
signature = signing.sign(header_bytes, private_key)
batch = batch_pb2.Batch(header=header_bytes,
transactions=transactions,
header_signature=signature)
return batch
def multi_transactions_batch(transactions, batch_key):
if type(transactions) != list:
raise CustomError("Transactions must be instance of list")
batch_header = batch_pb2.BatchHeader(
signer_public_key=batch_key.get_public_key().as_hex(),
transaction_ids=[transaction.header_signature for transaction in transactions]).SerializeToString()
batch = batch_pb2.Batch(
header=batch_header,
header_signature=batch_key.sign(batch_header),
transactions=transactions)
batch_list_bytes = BatchList(batches=[batch]).SerializeToString()
return batch.header_signature, batch_list_bytes
def create_batch(transactions, private_key, public_key):
transaction_signatures = [t.signature for t in transactions]
header = batch_pb2.BatchHeader(
signer=public_key, transaction_signatures=transaction_signatures)
header_bytes = header.SerializeToString()
signature = pybitcointools.ecdsa_sign(header_bytes, private_key)
batch = batch_pb2.Batch(header=header_bytes,
transactions=transactions,
signature=signature)
return batch
def create_batch(transactions, signer):
transaction_signatures = [t.header_signature for t in transactions]
header = batch_pb2.BatchHeader(
signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=transaction_signatures)
header_bytes = header.SerializeToString()
signature = signer.sign(header_bytes)
batch = batch_pb2.Batch(header=header_bytes,
transactions=transactions,
header_signature=signature)
return batch
def _create_batch(signer, transactions):
"""Creates a batch from a list of transactions and a signer, and signs
the resulting batch with the given signing key.
Args:
signer (:obj:`Signer`): Cryptographic signer to sign the batch
transactions (list of `Transaction`): The transactions to add to the
batch.
Returns:
`Batch`: The constructed and signed batch.
"""
txn_ids = [txn.header_signature for txn in transactions]
batch_header = batch_pb.BatchHeader(
signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=txn_ids).SerializeToString()
return batch_pb.Batch(header=batch_header,
header_signature=signer.sign(batch_header),
transactions=transactions)
def assertValidBatch(
self,
batch,
message,
message_type,
inputs,
outputs,
signer_public_key,
batcher_public_key,
):
self.assertIsInstance(batch, batch_pb2.Batch)
batch_header = batch_pb2.BatchHeader()
batch_header.ParseFromString(batch.header)
self.assertIsInstance(batch_header, batch_pb2.BatchHeader)
self.assertEqual(batch_header.signer_public_key, batcher_public_key)
batcher_keypair = Key(public_key=batcher_public_key)
self.assertTrue(
batcher_keypair.verify(
signature=batch.header_signature,
message=batch_header.SerializeToString(),
)
)
other_key = Key()
self.assertFalse(
other_key.verify(
signature=batch.header_signature,
message=batch_header.SerializeToString(),
)
)
transactions = list(batch.transactions)
self.assertEqual(len(transactions), 1)
self.assertValidTransaction(
transaction=transactions[0],
message=message,
message_type=message_type,
inputs=inputs,
outputs=outputs,
signer_public_key=signer_public_key,
)
def wrap_payload_in_txn_batch(txn_key, payload, header, batch_key):
"""Takes the serialized RBACPayload and creates a batch_list, batch
signature tuple.
Args:
txn_key (Key): The txn signer's public/private key pair.
payload (bytes): The serialized RBACPayload.
header (bytes): The serialized TransactionHeader.
batch_key (Key): The batch signer's public/private key pair.
Returns:
tuple
The zeroth element is a BatchList, and the first element is
the batch header_signature.
"""
factory = CryptoFactory(sawtooth_signing.create_context("secp256k1"))
txn_signer = factory.new_signer(
Secp256k1PrivateKey.from_hex(txn_key.private_key))
transaction = transaction_pb2.Transaction(
payload=payload,
header=header,
header_signature=txn_signer.sign(header))
batch_header = batch_pb2.BatchHeader(
signer_public_key=batch_key.public_key,
transaction_ids=[transaction.header_signature],
).SerializeToString()
batch_signer = factory.new_signer(
Secp256k1PrivateKey.from_hex(batch_key.private_key))
batch = batch_pb2.Batch(
header=batch_header,
header_signature=batch_signer.sign(batch_header),
transactions=[transaction],
)
batch_list = batch_pb2.BatchList(batches=[batch])
return batch_list, batch.header_signature