def _do_config_set(args):
"""Executes the 'set' subcommand. Given a key file, and a series of
key/value pairs, it generates batches of sawtooth_config transactions in a
BatchList instance, and stores it in a file.
"""
settings = [s.split('=', 1) for s in args.setting]
with open(args.key, 'r') as key_file:
wif_key = key_file.read().strip()
signing_key = signing.encode_privkey(
signing.decode_privkey(wif_key, 'wif'), 'hex')
pubkey = signing.encode_pubkey(signing.generate_pubkey(signing_key),
'hex')
txns = [
_create_config_txn(pubkey, signing_key, setting)
for setting in settings
]
txn_ids = [txn.header_signature for txn in txns]
batch_header = BatchHeader(signer_pubkey=pubkey,
transaction_ids=txn_ids).SerializeToString()
batch = Batch(header=batch_header,
header_signature=signing.sign(batch_header, signing_key),
transactions=txns)
batch_list = BatchList(batches=[batch]).SerializeToString()
try:
with open(args.output, 'wb') as batch_file:
batch_file.write(batch_list)
except:
raise CliException('Unable to write to {}'.format(args.output))
def make_batch(self, batch_sig, *txns):
txn_ids = [txn.header_signature for txn in txns]
batch_header = BatchHeader(
signer_pubkey='test_pubkey',
transaction_ids=txn_ids).SerializeToString()
batch = Batch(header=batch_header,
header_signature=batch_sig,
transactions=txns)
batch_list = BatchList(batches=[batch])
target_path = os.path.join(self._temp_dir, batch_sig + ".batch")
with open(target_path, "wb") as f:
filename = f.name
f.write(batch_list.SerializeToString())
return filename
def _create_batch(public_key, signing_key, transactions):
"""Creates a batch from a list of transactions and a public key, and signs
the resulting batch with the given signing key.
Args:
public_key (str): The public key associated with the signing key.
signing_key (str): The private key for signing 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 = BatchHeader(signer_public_key=public_key,
transaction_ids=txn_ids).SerializeToString()
return Batch(header=batch_header,
header_signature=signing.sign(batch_header, signing_key),
transactions=transactions)
def _create_batch(signer, transactions):
"""Creates a batch from a list of transactions and a public key, and signs
the resulting batch with the given signing key.
Args:
signer (:obj:`Signer`): The cryptographic signer
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 = BatchHeader(
signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=txn_ids).SerializeToString()
return Batch(header=batch_header,
header_signature=signer.sign(batch_header),
transactions=transactions)
