def _pay_key_fee(self, address, fee_lbc, name):
log.info("Pay key fee %s --> %s", dewies_to_lbc(fee_lbc), address)
reserved_points = self.wallet.reserve_points(address, fee_lbc)
if reserved_points is None:
raise InsufficientFundsError(
'Unable to pay the key fee of {} for {}'.format(dewies_to_lbc(fee_lbc), name)
)
return f2d(self.wallet.send_points_to_address(reserved_points, fee_lbc))
def encode_transaction(self, tx):
return {
'txid': tx.id,
'height': tx.height,
'inputs': [self.encode_input(txo) for txo in tx.inputs],
'outputs': [self.encode_output(txo) for txo in tx.outputs],
'total_input': dewies_to_lbc(tx.input_sum),
'total_output': dewies_to_lbc(tx.input_sum - tx.fee),
'total_fee': dewies_to_lbc(tx.fee),
'hex': hexlify(tx.raw).decode(),
}
def format_amount_value(obj):
if isinstance(obj, dict):
for k, v in obj.items():
if k in ('amount', 'effective_amount'):
if not isinstance(obj[k], float):
obj[k] = dewies_to_lbc(obj[k])
elif k == 'supports' and isinstance(v, list):
obj[k] = [{'txid': txid, 'nout': nout, 'amount': dewies_to_lbc(amount)}
for (txid, nout, amount) in v]
elif isinstance(v, (list, dict)):
obj[k] = format_amount_value(v)
elif isinstance(obj, list):
obj = [format_amount_value(o) for o in obj]
return obj
def encode_output(self, txo):
tx_height = txo.tx_ref.height
best_height = self.ledger.headers.height
output = {
'txid':
txo.tx_ref.id,
'nout':
txo.position,
'amount':
dewies_to_lbc(txo.amount),
'address':
txo.get_address(self.ledger),
'height':
tx_height,
'confirmations':
(best_height + 1) - tx_height if tx_height > 0 else tx_height
}
if txo.is_change is not None:
output['is_change'] = txo.is_change
if txo.is_my_account is not None:
output['is_mine'] = txo.is_my_account
if txo.script.is_claim_involved:
output.update({
'name': txo.claim_name,
'claim_id': txo.claim_id,
'permanent_url': txo.permanent_url,
})
if txo.script.is_claim_name or txo.script.is_update_claim:
claim = txo.claim
output['value'] = claim.claim_dict
if claim.has_signature:
output['valid_signature'] = None
if txo.channel is not None:
output['channel_name'] = txo.channel.claim_name
try:
output[
'valid_signature'] = claim.validate_signature(
txo.get_address(self.ledger),
txo.channel.claim,
name=txo.claim_name)
except BadSignatureError:
output['valid_signature'] = False
except ValueError:
log.exception(
'txo.id: %s, txo.channel.id:%s, output: %s',
txo.id, txo.channel.id, output)
output['valid_signature'] = False
if txo.script.is_claim_name:
output['type'] = 'claim'
elif txo.script.is_update_claim:
output['type'] = 'update'
elif txo.script.is_support_claim:
output['type'] = 'support'
else:
output['type'] = 'basic'
return output
def _format_support(outpoint, supported_id, amount, address):
return {
"txid": outpoint.split(":")[0],
"nout": int(outpoint.split(":")[1]),
"claim_id": supported_id,
"amount": dewies_to_lbc(amount),
"address": address,
}
async def _report_state(self):
for account in self.accounts:
total_receiving = len((await account.receiving.get_addresses()))
total_change = len((await account.change.get_addresses()))
channel_count = await account.get_channel_count()
claim_count = await account.get_claim_count()
balance = dewies_to_lbc(await account.get_balance())
log.info("Loaded account %s with %s LBC, %d receiving addresses (gap: %d), "
"%d change addresses (gap: %d), %d channels, %d certificates and %d claims. ",
account.id, balance, total_receiving, account.receiving.gap, total_change, account.change.gap,
channel_count, len(account.certificates), claim_count)
async def claim_new_channel(self, channel_name, amount, account):
address = await account.receiving.get_or_create_usable_address()
cert, key = generate_certificate()
tx = await Transaction.claim(channel_name, cert, amount, address,
[account], account)
await account.ledger.broadcast(tx)
account.add_certificate_private_key(tx.outputs[0].ref, key.decode())
# TODO: release reserved tx outputs in case anything fails by this point
await self.old_db.save_claims([
self._old_get_temp_claim_info(tx, tx.outputs[0], address, cert,
channel_name, dewies_to_lbc(amount))
])
return tx
def as_dict(self) -> typing.Dict:
return {
"name": self.claim_name,
"claim_id": self.claim_id,
"address": self.claim_address,
"claim_sequence": self.claim_sequence,
"value": self.claim,
"height": self.height,
"amount": dewies_to_lbc(self.amount),
"nout": self.nout,
"txid": self.txid,
"channel_claim_id": self.channel_claim_id,
"channel_name": self.channel_name
}
async def tip_claim(self, amount, claim_id, account):
claim_to_tip = await self.get_claim_by_claim_id(claim_id)
tx = await Transaction.support(claim_to_tip['name'], claim_id, amount,
claim_to_tip['address'], [account],
account)
await account.ledger.broadcast(tx)
await self.old_db.save_supports(claim_id,
[{
'txid': tx.id,
'nout': tx.position,
'address': claim_to_tip['address'],
'claim_id': claim_id,
'amount': dewies_to_lbc(amount)
}])
return tx
async def support_claim(self, claim_name, claim_id, amount, account):
holding_address = await account.receiving.get_or_create_usable_address(
)
tx = await Transaction.support(claim_name, claim_id, amount,
holding_address, [account], account)
await account.ledger.broadcast(tx)
await self.old_db.save_supports(claim_id,
[{
'txid': tx.id,
'nout': tx.position,
'address': holding_address,
'claim_id': claim_id,
'amount': dewies_to_lbc(amount)
}])
return tx
def _format_claim_response(outpoint, claim_id, name, amount, height, serialized, channel_id, address, claim_sequence):
r = {
"name": name,
"claim_id": claim_id,
"address": address,
"claim_sequence": claim_sequence,
"value": ClaimDict.deserialize(unhexlify(serialized)).claim_dict,
"height": height,
"amount": dewies_to_lbc(amount),
"nout": int(outpoint.split(":")[1]),
"txid": outpoint.split(":")[0],
"channel_claim_id": channel_id,
"channel_name": None
}
return r
async def claim_name(self,
account,
name,
amount,
claim_dict,
certificate=None,
claim_address=None):
claim = ClaimDict.load_dict(claim_dict)
if not claim_address:
claim_address = await account.receiving.get_or_create_usable_address(
)
if certificate:
claim = claim.sign(
certificate.private_key,
claim_address,
certificate.claim_id,
curve=SECP256k1,
name=name,
force_detached=
False # TODO: delete it and make True default everywhere when its out
)
existing_claims = await account.get_claims(
claim_name_type__any={
'is_claim': 1,
'is_update': 1
}, # exclude is_supports
claim_name=name)
if len(existing_claims) == 0:
tx = await Transaction.claim(name, claim, amount, claim_address,
[account], account)
elif len(existing_claims) == 1:
tx = await Transaction.update(existing_claims[0], claim, amount,
claim_address, [account], account)
else:
raise NameError(
f"More than one other claim exists with the name '{name}'.")
await account.ledger.broadcast(tx)
await self.old_db.save_claims([
self._old_get_temp_claim_info(tx, tx.outputs[0], claim_address,
claim_dict, name,
dewies_to_lbc(amount))
])
# TODO: release reserved tx outputs in case anything fails by this point
return tx
async def get_history(account: BaseAccount, **constraints):
headers = account.ledger.headers
txs = await account.get_transactions(**constraints)
history = []
for tx in txs:
ts = headers[tx.height]['timestamp'] if tx.height > 0 else None
item = {
'txid':
tx.id,
'timestamp':
ts,
'date':
datetime.fromtimestamp(ts).isoformat(' ')[:-3]
if tx.height > 0 else None,
'confirmations':
(headers.height + 1) - tx.height if tx.height > 0 else 0,
'claim_info': [],
'update_info': [],
'support_info': [],
'abandon_info': []
}
is_my_inputs = all([txi.is_my_account for txi in tx.inputs])
if is_my_inputs:
# fees only matter if we are the ones paying them
item['value'] = dewies_to_lbc(tx.net_account_balance + tx.fee)
item['fee'] = dewies_to_lbc(-tx.fee)
else:
# someone else paid the fees
item['value'] = dewies_to_lbc(tx.net_account_balance)
item['fee'] = '0.0'
for txo in tx.my_claim_outputs:
item['claim_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
for txo in tx.my_update_outputs:
if is_my_inputs: # updating my own claim
previous = None
for txi in tx.inputs:
if txi.txo_ref.txo is not None:
other_txo = txi.txo_ref.txo
if (other_txo.is_claim or other_txo.script.is_support_claim) \
and other_txo.claim_id == txo.claim_id:
previous = other_txo
break
if previous is not None:
item['update_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(previous.amount - txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
else: # someone sent us their claim
item['update_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(0),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
for txo in tx.my_support_outputs:
item['support_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(
txo.amount if not is_my_inputs else -txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'is_tip':
not is_my_inputs,
'nout':
txo.position
})
for txo in tx.other_support_outputs:
item['support_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'is_tip':
is_my_inputs,
'nout':
txo.position
})
for txo in tx.my_abandon_outputs:
item['abandon_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
history.append(item)
return history
def calculate_effective_amount(
amount: str,
supports: typing.Optional[typing.List[typing.Dict]] = None) -> str:
return dewies_to_lbc(
lbc_to_dewies(amount) +
sum([lbc_to_dewies(support['amount']) for support in supports]))
async def get_history(account: BaseAccount, **constraints):
headers = account.ledger.headers
txs = await account.get_transactions(**constraints)
history = []
for tx in txs:
ts = headers[tx.height]['timestamp'] if tx.height > 0 else None
item = {
'txid':
tx.id,
'timestamp':
ts,
'value':
dewies_to_lbc(tx.net_account_balance),
'fee':
dewies_to_lbc(tx.fee),
'date':
datetime.fromtimestamp(ts).isoformat(' ')[:-3]
if tx.height > 0 else None,
'confirmations':
headers.height - tx.height if tx.height > 0 else 0,
'claim_info': [],
'update_info': [],
'support_info': [],
'abandon_info': []
}
for txo in tx.my_claim_outputs:
item['claim_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
for txo in tx.my_update_outputs:
item['update_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
for txo in tx.my_support_outputs:
is_tip = next(tx.my_inputs, None) is None
item['support_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(txo.amount if is_tip else -txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'is_tip':
is_tip,
'nout':
txo.position
})
for txo in tx.other_support_outputs:
is_tip = next(tx.my_inputs, None) is not None
item['support_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'is_tip':
is_tip,
'nout':
txo.position
})
for txo in tx.my_abandon_outputs:
item['abandon_info'].append({
'address':
txo.get_address(account.ledger),
'balance_delta':
dewies_to_lbc(-txo.amount),
'amount':
dewies_to_lbc(txo.amount),
'claim_id':
txo.claim_id,
'claim_name':
txo.claim_name,
'nout':
txo.position
})
if all([txi.txo_ref.txo is not None for txi in tx.inputs]):
item['fee'] = dewies_to_lbc(tx.fee)
else:
item['fee'] = '0' # can't calculate fee without all input txos
history.append(item)
return history