def sign(self):
""" Sign a provided transaction witht he provided key(s)
:param dict tx: The transaction to be signed and returned
:param string wifs: One or many wif keys to use for signing
a transaction. If not present, the keys will be loaded
from the wallet as defined in "missing_signatures" key
of the transactions.
"""
# We need to set the default prefix, otherwise pubkeys are
# presented wrongly!
if self.steemd:
operations.default_prefix = self.steemd.chain_params["prefix"]
elif "blockchain" in self:
operations.default_prefix = self["blockchain"]["prefix"]
try:
signedtx = SignedTransaction(**self.json())
except Exception as e:
raise e
if not any(self.wifs):
raise MissingKeyError
signedtx.sign(self.wifs, chain=self.steemd.chain_params)
self["signatures"].extend(signedtx.json().get("signatures"))
def compareConstructedTX(self):
# def test_online(self):
# self.maxDiff = None
op = operations.CommentOptions(
**{
"author": "xeroc",
"permlink": "piston",
"max_accepted_payout": "1000000.000 SBD",
"percent_steem_dollars": 10000,
"allow_votes": True,
"allow_curation_rewards": True,
"extensions": []
})
ops = [operations.Operation(op)]
tx = SignedTransaction(
ref_block_num=ref_block_num,
ref_block_prefix=ref_block_prefix,
expiration=expiration,
operations=ops)
tx = tx.sign([wif], chain=self.steem.chain_params)
tx_wire = hexlify(bytes(tx)).decode("ascii")
# todo
rpc = self.steem.commit.wallet
compare = rpc.serialize_transaction(tx.json())
self.assertEqual(compare[:-130], tx_wire[:-130])
def constructTx(self):
if isinstance(self.op, list):
ops = [Operation(o) for o in self.op]
else:
ops = [Operation(self.op)]
expiration = fmt_time_from_now(self.expiration)
ref_block_num, ref_block_prefix = get_block_params(self.steemd)
tx = SignedTransaction(
ref_block_num=ref_block_num,
ref_block_prefix=ref_block_prefix,
expiration=expiration,
operations=ops
)
super(TransactionBuilder, self).__init__(tx.json())