def create_conclude_tx(c_address, start_tx, send_pairs=None, c_storage=None):
assert isinstance(start_tx, TX)
assert send_pairs is None or isinstance(send_pairs, list)
assert c_storage is None or isinstance(c_storage, dict)
message = bjson.dumps((c_address, start_tx.hash, c_storage),
compress=False)
v = get_validator_object(c_address=c_address)
send_pairs = send_pairs or list()
tx = TX(
tx={
'type': C.TX_CONCLUDE_CONTRACT,
'time': start_tx.time,
'deadline': start_tx.deadline,
'gas_price': start_tx.gas_price,
'gas_amount': 0,
'outputs': [tuple(s) for s in send_pairs],
'message_type': C.MSG_BYTE,
'message': message
})
extra_gas = C.SIGNATURE_GAS * v.require
tx.gas_amount = tx.size + extra_gas
# fill unspents
fill_contract_inputs_outputs(tx=tx,
c_address=c_address,
additional_gas=extra_gas)
# replace dummy address
replace_redeem_dummy_address(tx=tx, replace_by=c_address)
tx.serialize()
if v.index == -1:
raise BlockChainError(
'Not init validator address. {}'.format(c_address))
if setup_contract_signature(tx, v.validators) == 0:
raise BlockChainError('Cannot sign, you are not validator.')
return tx
def start_contract_tx(c_address,
c_method,
cur,
c_args=None,
outputs=None,
sender=C.ANT_UNKNOWN,
gas_price=None,
additional_gas_amount=None,
retention=10800):
# TXを作成
now = int(time.time()) - V.BLOCK_GENESIS_TIME
c_redeem = create_new_user_keypair(C.ANT_NAME_UNKNOWN, cur)
message = bjson.dumps((c_address, c_method, c_args or tuple(), c_redeem),
compress=False)
tx = TX(
tx={
'version': __chain_version__,
'type': C.TX_START_CONTRACT,
'time': now,
'deadline': now + retention,
'inputs': list(),
'outputs': outputs or list(),
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': C.MSG_BYTE,
'message': message
})
check_output_format(tx.outputs)
tx.gas_amount = tx.getsize() + 96
tx.serialize()
# fill unspents
fee_coin_id = 0
input_address = fill_inputs_outputs(
tx, cur, fee_coin_id, additional_gas_amount
or V.CONTRACT_MINIMUM_AMOUNT)
fee_coins = CoinObject(fee_coin_id, tx.gas_price * tx.gas_amount)
movements = UserCoins()
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
# account check
send_coins = CoinObject()
check_enough_amount(sender, send_coins, fee_coins)
if sender in (C.ANT_OUTSIDE, C.ANT_RESERVED):
raise BlockChainError('Not allowed inner account.')
# replace dummy address
replace_redeem_dummy_address(tx, cur)
# setup signature
tx.serialize()
setup_signature(tx, input_address)
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return tx
def create_validator_edit_tx(c_address,
new_address=None,
flag=F_NOP,
sig_diff=0,
gas_price=None,
retention=10800):
assert not (flag == F_NOP and sig_diff == 0), 'No edit info.'
if new_address is None and flag != F_NOP:
raise BlockChainError('No cosigner edit, but flag is not NOP.')
# validator object
v = get_validator_object(c_address=c_address)
if v.version == -1:
if new_address is None or flag != F_ADD or sig_diff != 1:
raise BlockChainError('Not correct info.')
else:
next_require = v.require + sig_diff
next_validator_num = len(v.validators)
if flag == F_ADD:
next_validator_num += 1
elif flag == F_REMOVE:
next_validator_num -= 1
if not (0 < next_require <= next_validator_num):
raise BlockChainError('ReqError, 0 < {} <= {}'.format(
next_require, next_validator_num))
# tx create
message = bjson.dumps((c_address, new_address, flag, sig_diff),
compress=False)
tx = TX(
tx={
'type': C.TX_VALIDATOR_EDIT,
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 0,
'message_type': C.MSG_BYTE,
'message': message
})
extra_gas = C.VALIDATOR_EDIT_GAS + C.SIGNATURE_GAS * v.require
tx.gas_amount = tx.size + extra_gas
tx.update_time(retention)
# fill unspents
fill_contract_inputs_outputs(tx=tx,
c_address=c_address,
additional_gas=extra_gas)
# replace dummy address
replace_redeem_dummy_address(tx=tx, replace_by=c_address)
tx.serialize()
if len(v.validators) > 0 and setup_contract_signature(tx,
v.validators) == 0:
raise BlockChainError('Cannot sign, you are not validator.')
return tx
def create_contract_tx(c_bin,
cur,
sender=C.ANT_UNKNOWN,
c_cs=None,
gas_price=None,
retention=10800):
assert isinstance(c_bin, bytes), 'contract is bytes code.'
assert isinstance(sender, int), 'Sender is id.'
if c_cs:
for k, v in c_cs.items():
assert isinstance(k, bytes), 'Key is bytes.'
assert isinstance(v, bytes), 'Value is bytes.'
# TXを作成
now = int(time.time()) - V.BLOCK_GENESIS_TIME
ck = create_new_user_keypair(C.ANT_NAME_CONTRACT, cur)
c_address = convert_address(ck, V.BLOCK_CONTRACT_PREFIX)
message = bjson.dumps((c_address, c_bin, c_cs), compress=False)
tx = TX(
tx={
'version': __chain_version__,
'type': C.TX_CREATE_CONTRACT,
'time': now,
'deadline': now + retention,
'inputs': list(),
'outputs': list(),
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': C.MSG_BYTE,
'message': message
})
tx.gas_amount = tx.getsize() + C.CONTRACT_CREATE_FEE + 96
# fill unspents
fee_coin_id = 0
input_address = fill_inputs_outputs(tx, cur, fee_coin_id,
C.CONTRACT_CREATE_FEE)
fee_coins = CoinObject(fee_coin_id, tx.gas_price * tx.gas_amount)
movements = UserCoins()
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
# account check
send_coins = CoinObject()
check_enough_amount(sender, send_coins, fee_coins)
if sender in (C.ANT_OUTSIDE, C.ANT_RESERVED):
raise BlockChainError('Not allowed inner account.')
# replace dummy address
replace_redeem_dummy_address(tx, cur)
# setup signature
tx.serialize()
setup_signature(tx, input_address)
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return c_address, tx
def change_mintcoin(mint_id,
cur,
amount=0,
message=None,
additional_issue=None,
image=None,
sender=C.ANT_UNKNOWN):
mint_old = get_mintcoin(mint_id)
assert mint_old, 'Not defined MintCoin {}'.format(mint_id)
mint_new = MintCoinObject(None)
mint_new.version = mint_old.version + 1
mint_new.coin_id = mint_id
mint_new.amount = amount
mint_new.additional_issue = additional_issue
mint_address = get_address(mint_old.owner, prefix=V.BLOCK_PREFIX)
uuid, sk, pk = read_address2keypair(mint_address, cur)
mint_new.owner = pk
mint_new.image = image
mint_new.message = message
# マージチェック
mint_new.marge(mint_old)
# Message内署名
mint_new.generate_sign(sk)
mint_new.serialize()
mint_new.check_param()
mint_new.check_sign()
logging.info("New Mintcoin skeleton created coin_id={}".format(
mint_new.coin_id))
# movement
movements = UserCoins()
minting_coins = CoinObject(mint_id, amount)
movements[sender] += minting_coins
movements[C.ANT_OUTSIDE] -= minting_coins
# TXを作成する
base_coin_id = 0
now = int(time.time()) - V.BLOCK_GENESIS_TIME
tx = TX(
tx={
'version':
__chain_version__,
'type':
C.TX_MINT_COIN,
'time':
now,
'deadline':
now + 10800,
'inputs':
list(),
'outputs': [(MINTCOIN_DUMMY_ADDRESS, base_coin_id,
amount)] if 0 < amount else list(),
'gas_price':
V.COIN_MINIMUM_PRICE,
'gas_amount':
1,
'message_type':
C.MSG_BYTE,
'message':
mint_new.binary
})
tx.gas_amount = tx.getsize() + 96 + C.MINTCOIN_FEE
tx.serialize()
fee_coin_id = 0
input_address = fill_inputs_outputs(tx, cur, fee_coin_id, C.MINTCOIN_FEE)
fee_coins = CoinObject(fee_coin_id, tx.gas_price * tx.gas_amount)
# check amount
check_enough_amount(sender, CoinObject(base_coin_id, amount), fee_coins)
# replace dummy address
replace_redeem_dummy_address(tx, cur)
# replace dummy mint_id
if amount > 0:
replace_mint_dummy_address(tx, mint_address, mint_id)
# setup signature
tx.serialize()
setup_signature(tx, input_address)
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return mint_new, tx
def issue_mintcoin(name,
unit,
amount,
digit,
cur,
gas_price=None,
message='',
additional_issue=True,
image=None,
sender=C.ANT_UNKNOWN):
mint = MintCoinObject(None)
new_mint_id = get_new_coin_id()
mint.version = 0
mint.coin_id = new_mint_id
mint.name = name
mint.unit = unit
mint.digit = digit
mint.supply_before = 0
mint.amount = amount
mint.additional_issue = additional_issue
new_mint_address = create_new_user_keypair(C.ANT_NAME_UNKNOWN, cur)
uuid, sk, pk = read_address2keypair(new_mint_address, cur)
mint.owner = pk
mint.image = image
mint.message = message
# Message内署名
mint.generate_sign(sk)
mint.serialize()
mint.check_param()
mint.check_sign()
logging.info("New Mintcoin skeleton created coin_id={}".format(
mint.coin_id))
# movement
movements = UserCoins()
minting_coins = CoinObject(new_mint_id, amount)
movements[sender] += minting_coins
movements[C.ANT_OUTSIDE] -= minting_coins
# TXを作成する
base_coin_id = 0
now = int(time.time()) - V.BLOCK_GENESIS_TIME
tx = TX(
tx={
'version': __chain_version__,
'type': C.TX_MINT_COIN,
'time': now,
'deadline': now + 10800,
'inputs': list(),
'outputs': [(MINTCOIN_DUMMY_ADDRESS, base_coin_id, amount)],
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': C.MSG_BYTE,
'message': mint.binary
})
tx.gas_amount = tx.getsize() + 96 + C.MINTCOIN_FEE
tx.serialize()
# fill unspents
fee_coin_id = 0
input_address = fill_inputs_outputs(tx, cur, fee_coin_id, C.MINTCOIN_FEE)
fee_coins = CoinObject(fee_coin_id, tx.gas_price * tx.gas_amount)
# check amount
check_enough_amount(sender, CoinObject(base_coin_id, amount), fee_coins)
# replace dummy address
replace_redeem_dummy_address(tx, cur)
# replace dummy mint_id
replace_mint_dummy_address(tx, new_mint_address, new_mint_id)
# setup signature
tx.serialize()
setup_signature(tx, input_address)
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return mint, tx
def send_many(sender,
send_pairs,
cur,
fee_coin_id=0,
gas_price=None,
msg_type=C.MSG_NONE,
msg_body=b'',
f_balance_check=True,
retention=10800):
assert isinstance(sender, int), 'Sender is user id.'
assert 0 < len(send_pairs), 'Empty send_pairs.'
# send_pairs check
movements = UserCoins()
outputs = list()
coins = CoinObject()
for address, coin_id, amount in send_pairs:
assert isinstance(
address,
str) and len(address) == 40, 'Recipient is 40 letter string.'
assert isinstance(coin_id, int) and isinstance(
amount, int), 'CoinID, amount is int.'
coins[coin_id] += amount
outputs.append((address, coin_id, amount))
movements[sender] -= coins
movements[C.ANT_OUTSIDE] += coins
# tx
now = int(time.time() - V.BLOCK_GENESIS_TIME)
tx = TX(
tx={
'version': __chain_version__,
'type': C.TX_TRANSFER,
'time': now,
'deadline': now + retention,
'inputs': list(),
'outputs': outputs,
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': msg_type,
'message': msg_body
})
tx.gas_amount = tx.size + C.SIGNATURE_GAS
# fill unspents
input_address = fill_inputs_outputs(tx, cur, fee_coin_id, additional_gas=0)
# account check
fee_coins = CoinObject(coin_id=fee_coin_id,
amount=tx.gas_price * tx.gas_amount)
if f_balance_check:
# 残高が十分にあるかチェック
send_coins = CoinObject()
for address, coin_id, amount in send_pairs:
send_coins[coin_id] += amount
check_enough_amount(sender, send_coins, fee_coins)
if sender in (C.ANT_OUTSIDE, C.ANT_RESERVED):
# 内部アカウントは不可
raise BlockChainError('Not allowed inner account.')
# replace dummy address
replace_redeem_dummy_address(tx, cur)
# setup signature
tx.serialize()
setup_signature(tx, input_address)
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return tx
def change_mintcoin(mint_id,
cur,
amount=None,
description=None,
image=None,
setting=None,
new_address=None,
gas_price=None,
sender=C.ANT_UNKNOWN,
retention=10800):
assert amount or description or image or setting or new_address
params = dict()
if description:
params['description'] = description
if image:
params['image'] = image
if new_address:
params['address'] = new_address
if len(params) == 0:
params = None
if not params and not setting and not amount:
raise BlockChainError('No update found.')
m_before = get_mintcoin_object(coin_id=mint_id)
if m_before.version == -1:
raise BlockChainError('Not init mintcoin. {}'.format(m_before))
result = check_mintcoin_new_format(m_before=m_before,
new_params=params,
new_setting=setting)
if isinstance(result, str):
raise BlockChainError('check_mintcoin_new_format(): {}'.format(result))
msg_body = bjson.dumps((mint_id, params, setting), compress=False)
tx = TX(
tx={
'type': C.TX_MINT_COIN,
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': C.MSG_BYTE,
'message': msg_body
})
if amount:
tx.outputs.append((MINTCOIN_DUMMY_ADDRESS, 0, amount))
send_coins = Balance(0, amount)
minting_coins = Balance(mint_id, amount)
else:
send_coins = Balance(0, 0)
minting_coins = Balance(0, 0)
tx.update_time(retention)
additional_gas = C.MINTCOIN_GAS + C.SIGNATURE_GAS # for mint_coin user signature
tx.gas_amount = tx.size + C.SIGNATURE_GAS + additional_gas
tx.serialize()
# fill unspents
fee_coin_id = 0
input_address = fill_inputs_outputs(tx=tx,
cur=cur,
fee_coin_id=fee_coin_id,
additional_gas=additional_gas)
input_address.add(m_before.address)
fee_coins = Balance(coin_id=fee_coin_id,
amount=tx.gas_price * tx.gas_amount)
# check amount
check_enough_amount(sender=sender,
send_coins=send_coins,
fee_coins=fee_coins)
# replace dummy address
replace_redeem_dummy_address(tx=tx, cur=cur)
# replace dummy mint_id
replace_mint_dummy_address(tx=tx,
mint_address=m_before.address,
mint_id=mint_id,
f_raise=False)
# setup signature
tx.serialize()
setup_signature(tx=tx, input_address=input_address)
# movement
movements = Accounting()
movements[sender] += minting_coins
movements[C.ANT_OUTSIDE] -= minting_coins
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return tx
def issue_mintcoin(name,
unit,
digit,
amount,
cur,
description=None,
image=None,
additional_issue=True,
change_address=True,
gas_price=None,
sender=C.ANT_UNKNOWN,
retention=10800):
mint_id = get_new_coin_id()
sender_name = read_user2name(user=sender, cur=cur)
mint_address = create_new_user_keypair(name=sender_name, cur=cur)
params = {
"name": name,
"unit": unit,
"digit": digit,
"address": mint_address,
"description": description,
"image": image
}
setting = {
"additional_issue": additional_issue,
"change_address": change_address
}
m_before = get_mintcoin_object(coin_id=mint_id)
result = check_mintcoin_new_format(m_before=m_before,
new_params=params,
new_setting=setting)
if isinstance(result, str):
raise BlockChainError('check_mintcoin_new_format(): {}'.format(result))
msg_body = bjson.dumps((mint_id, params, setting), compress=False)
tx = TX(
tx={
'type': C.TX_MINT_COIN,
'inputs': list(),
'outputs': [(MINTCOIN_DUMMY_ADDRESS, 0, amount)],
'gas_price': gas_price or V.COIN_MINIMUM_PRICE,
'gas_amount': 1,
'message_type': C.MSG_BYTE,
'message': msg_body
})
tx.update_time(retention)
additional_gas = C.MINTCOIN_GAS
tx.gas_amount = tx.size + C.SIGNATURE_GAS + additional_gas
tx.serialize()
# fill unspents
fee_coin_id = 0
input_address = fill_inputs_outputs(tx=tx,
cur=cur,
fee_coin_id=fee_coin_id,
additional_gas=additional_gas)
# input_address.add(mint_address)
fee_coins = Balance(coin_id=fee_coin_id,
amount=tx.gas_price * tx.gas_amount)
# check amount
check_enough_amount(sender=sender,
send_coins=Balance(0, amount),
fee_coins=fee_coins)
# replace dummy address
replace_redeem_dummy_address(tx=tx, cur=cur)
# replace dummy mint_id
replace_mint_dummy_address(tx=tx,
mint_address=mint_address,
mint_id=mint_id,
f_raise=True)
# setup signature
tx.serialize()
setup_signature(tx=tx, input_address=input_address)
# movement
movements = Accounting()
minting_coins = Balance(mint_id, amount)
movements[sender] += minting_coins
movements[C.ANT_OUTSIDE] -= minting_coins
movements[sender] -= fee_coins
movements[C.ANT_OUTSIDE] += fee_coins
insert_log(movements, cur, tx.type, tx.time, tx.hash)
return mint_id, tx
def create_conclude_tx(c_address,
start_tx,
redeem_address,
send_pairs=None,
c_storage=None,
emulate_gas=0):
assert isinstance(start_tx, TX)
assert send_pairs is None or isinstance(send_pairs, list)
assert c_storage is None or isinstance(c_storage, dict)
assert isinstance(emulate_gas, int)
message = bjson.dumps((c_address, start_tx.hash, c_storage),
compress=False)
v = get_validator_object(c_address=c_address)
send_pairs = send_pairs or list()
tx = TX(
tx={
'type': C.TX_CONCLUDE_CONTRACT,
'time': start_tx.time,
'deadline': start_tx.deadline,
'gas_price': start_tx.gas_price,
'gas_amount': 0,
'outputs': [tuple(s) for s in send_pairs],
'message_type': C.MSG_BYTE,
'message': message
})
extra_gas = C.SIGNATURE_GAS * v.require
tx.gas_amount = tx.size + extra_gas
# fill unspents
fill_contract_inputs_outputs(tx=tx,
c_address=c_address,
additional_gas=extra_gas)
# replace dummy address
replace_redeem_dummy_address(tx=tx, replace_by=c_address)
# fix redeem fees
if send_pairs:
# conclude_txで使用したGasを、ユーザーから引いてコントラクトに戻す処理
conclude_fee = (emulate_gas + tx.gas_amount) * tx.gas_price
fee_coin_id = 0
f_finish_add = f_finish_sub = False
for index, (address, coin_id, amount) in enumerate(tx.outputs):
if coin_id != fee_coin_id:
continue
elif not f_finish_add and address == c_address:
f_finish_add = True
tx.outputs[index] = (address, coin_id, amount + conclude_fee)
elif not f_finish_sub and address == redeem_address:
f_finish_sub = True
tx.outputs[index] = (address, coin_id, amount - conclude_fee)
else:
pass
if not (f_finish_add and f_finish_sub):
raise BlockChainError(
'Cannot move conclude fee, add={} sub={}'.format(
f_finish_add, f_finish_sub))
logging.debug("Move conclude fee {}:{}".format(fee_coin_id,
conclude_fee))
tx.serialize()
if v.version == -1:
raise BlockChainError(
'Not init validator address. {}'.format(c_address))
if setup_contract_signature(tx, v.validators) == 0:
raise BlockChainError('Cannot sign, you are not validator.')
return tx