def produce_transactions(path, cnt=None):
clients = {}
transactions = []
with open(path) as fp:
lines = fp.read().split("\n")[:-1]
id = 0
for line in lines[1:]:
print("Reading line:", line)
id += 1
if cnt is not None and id > cnt:
break
fields = line.split('\t')
trans_id = int(fields[0])
trans = Transaction(trans_id)
outputs = {}
for field in fields[1:]:
if field.startswith("intput"):
input_ip = int(field.split(':')[1])
add_client(clients, input_ip)
elif field.startswith("outputindex"):
output_index = int(field.split(':')[1])
elif field.startswith("output"):
output_num = field.split(':')[0][6:]
if output_num == "":
output_num = 1
else:
output_num = int(output_num)
output_ip = int(field.split(':')[1])
add_client(clients, output_ip)
if output_num in outputs:
outputs[output_num] = (output_ip,
outputs[output_num][1])
else:
outputs[output_num] = (output_ip, None)
elif field.startswith("value"):
output_num = field.split(':')[0][5:]
if output_num == "":
output_num = 1
else:
output_num = int(output_num)
value = float(field.split(':')[1])
if output_num in outputs:
outputs[output_num] = (outputs[output_num][0], value)
else:
outputs[output_num] = (None, value)
for op in outputs.values():
trans.add_output(op)
trans.add_input((input_ip, None))
transactions.append(trans)
signature = clients[input_ip].private_key.sign(
data=trans.__str__().encode('utf-8'),
padding=padding.PSS(mgf=padding.MGF1(hashes.SHA256()),
salt_length=padding.PSS.MAX_LENGTH),
algorithm=hashes.SHA256())
# trans.add_signature(signature)
return transactions, clients
def make_block(self):
"""
Creates a block with height and coinbase from rpc call.
Uses decode raw transaction to generate txid.
:return: BTE Block object
"""
block_template = self.get_block_template()
coinbase_tx = Transaction(
height=block_template['height'],
coinbase_amount=block_template['coinbasevalue'])
txid = self.decode_raw_transaction(coinbase_tx.__str__())['txid']
block = Block(
previous_block_header_hash=block_template['previousblockhash'],
time=block_template['curtime'],
nbits=block_template['bits'],
nonce=0,
raw_coinbase=coinbase_tx.__str__(),
target=block_template['target'],
merkle_root_hash=txid)
return block
