def add_to_potential_tx_set(self, spend: SpendBundle):
"""
Adds SpendBundles that have failed to be added to the pool in potential tx set.
This is later used to retry to add them.
"""
self.potential_txs[spend.name()] = spend
while len(self.potential_txs) > self.potential_cache_size:
first_in = list(self.potential_txs.keys())[0]
self.potential_txs.pop(first_in)
async def respond_to_offer(
self, file_path: Path
) -> Tuple[bool, Optional[TradeRecord], Optional[str]]:
has_wallets = await self.maybe_create_wallets_for_offer(file_path)
if not has_wallets:
return False, None, "Unknown Error"
trade_offer_hex = file_path.read_text()
trade_offer: TradeRecord = TradeRecord.from_bytes(
hexstr_to_bytes(trade_offer_hex))
offer_spend_bundle = trade_offer.spend_bundle
coinsols = [] # [] of CoinSolutions
cc_coinsol_outamounts: Dict[bytes32, List[Tuple[Any, int]]] = dict()
# Used for generating auditor solution, key is colour
auditees: Dict[bytes32, List[Tuple[bytes32, bytes32, Any,
int]]] = dict()
aggsig = offer_spend_bundle.aggregated_signature
cc_discrepancies: Dict[bytes32, int] = dict()
chia_discrepancy = None
wallets: Dict[bytes32, Any] = dict() # colour to wallet dict
for coinsol in offer_spend_bundle.coin_solutions:
puzzle = coinsol.solution.first()
solution = coinsol.solution.rest().first()
# work out the deficits between coin amount and expected output for each
if cc_wallet_puzzles.check_is_cc_puzzle(puzzle):
if not cc_wallet_puzzles.is_ephemeral_solution(solution):
# Calculate output amounts
colour = cc_wallet_puzzles.get_genesis_from_puzzle(puzzle)
if colour not in wallets:
wallets[
colour] = await self.wallet_state_manager.get_wallet_for_colour(
colour)
unspent = await self.wallet_state_manager.get_spendable_coins_for_wallet(
wallets[colour].wallet_info.id)
if coinsol.coin in [record.coin for record in unspent]:
return False, None, "can't respond to own offer"
innerpuzzlereveal = cc_wallet_puzzles.inner_puzzle(
solution)
innersol = cc_wallet_puzzles.inner_puzzle_solution(
solution)
out_amount = cc_wallet_puzzles.get_output_amount_for_puzzle_and_solution(
innerpuzzlereveal, innersol)
if colour in cc_discrepancies:
cc_discrepancies[
colour] += coinsol.coin.amount - out_amount
else:
cc_discrepancies[
colour] = coinsol.coin.amount - out_amount
# Store coinsol and output amount for later
if colour in cc_coinsol_outamounts:
cc_coinsol_outamounts[colour].append(
(coinsol, out_amount))
else:
cc_coinsol_outamounts[colour] = [(coinsol, out_amount)]
# auditees should be (primary_input, innerpuzhash, coin_amount, output_amount)
if colour in auditees:
auditees[colour].append((
coinsol.coin.parent_coin_info,
Program(innerpuzzlereveal).get_tree_hash(),
coinsol.coin.amount,
out_amount,
))
else:
auditees[colour] = [(
coinsol.coin.parent_coin_info,
Program(innerpuzzlereveal).get_tree_hash(),
coinsol.coin.amount,
out_amount,
)]
else:
coinsols.append(coinsol)
else:
# standard chia coin
unspent = await self.wallet_state_manager.get_spendable_coins_for_wallet(
1)
if coinsol.coin in [record.coin for record in unspent]:
return False, None, "can't respond to own offer"
if chia_discrepancy is None:
chia_discrepancy = cc_wallet_puzzles.get_output_discrepancy_for_puzzle_and_solution(
coinsol.coin, puzzle, solution)
else:
chia_discrepancy += cc_wallet_puzzles.get_output_discrepancy_for_puzzle_and_solution(
coinsol.coin, puzzle, solution)
coinsols.append(coinsol)
chia_spend_bundle: Optional[SpendBundle] = None
if chia_discrepancy is not None:
chia_spend_bundle = await self.wallet_state_manager.main_wallet.create_spend_bundle_relative_chia(
chia_discrepancy, [])
zero_spend_list: List[SpendBundle] = []
# create coloured coin
self.log.info(cc_discrepancies)
for colour in cc_discrepancies.keys():
if cc_discrepancies[colour] < 0:
my_cc_spends = await wallets[colour].select_coins(
abs(cc_discrepancies[colour]))
else:
if chia_spend_bundle is None:
to_exclude: List = []
else:
to_exclude = chia_spend_bundle.removals()
my_cc_spends = await wallets[colour].select_coins(0)
if my_cc_spends is None or my_cc_spends == set():
zero_spend_bundle: SpendBundle = await wallets[
colour].generate_zero_val_coin(False, to_exclude)
if zero_spend_bundle is None:
return (
False,
None,
"Unable to generate zero value coin. Confirm that you have chia available",
)
zero_spend_list.append(zero_spend_bundle)
additions = zero_spend_bundle.additions()
removals = zero_spend_bundle.removals()
my_cc_spends = set()
for add in additions:
if add not in removals and add.amount == 0:
my_cc_spends.add(add)
if my_cc_spends == set() or my_cc_spends is None:
return False, None, "insufficient funds"
auditor = my_cc_spends.pop()
auditor_inner_puzzle = await self.get_inner_puzzle_for_puzzle_hash(
auditor.puzzle_hash)
assert auditor_inner_puzzle is not None
inner_hash = auditor_inner_puzzle.get_tree_hash()
auditor_info = (
auditor.parent_coin_info,
inner_hash,
auditor.amount,
)
core = cc_wallet_puzzles.cc_make_core(colour)
parent_info = await wallets[colour].get_parent_for_coin(auditor)
for coloured_coin in my_cc_spends:
inner_solution = self.wallet_state_manager.main_wallet.make_solution(
consumed=[auditor.name()])
sig = await wallets[
colour].get_sigs_for_innerpuz_with_innersol(
await self.get_inner_puzzle_for_puzzle_hash(
coloured_coin.puzzle_hash),
inner_solution,
)
aggsig = AugSchemeMPL.aggregate([sig, aggsig])
inner_puzzle = await self.get_inner_puzzle_for_puzzle_hash(
coloured_coin.puzzle_hash)
assert inner_puzzle is not None
# auditees should be (primary_input, innerpuzhash, coin_amount, output_amount)
auditees[colour].append((
coloured_coin.parent_coin_info,
inner_puzzle.get_tree_hash(),
coloured_coin.amount,
0,
))
solution = cc_wallet_puzzles.cc_make_solution(
core,
(
parent_info.parent_name,
parent_info.inner_puzzle_hash,
parent_info.amount,
),
coloured_coin.amount,
binutils.disassemble(inner_puzzle),
binutils.disassemble(inner_solution),
auditor_info,
None,
)
coin_spend = CoinSolution(
coloured_coin,
Program.to([
cc_wallet_puzzles.cc_make_puzzle(
inner_puzzle.get_tree_hash(),
core,
),
solution,
]),
)
coinsols.append(coin_spend)
ephemeral = cc_wallet_puzzles.create_spend_for_ephemeral(
coloured_coin, auditor, 0)
coinsols.append(ephemeral)
auditor = cc_wallet_puzzles.create_spend_for_auditor(
auditor, coloured_coin)
coinsols.append(auditor)
# Tweak the offer's solution to include the new auditor
for cc_coinsol_out in cc_coinsol_outamounts[colour]:
cc_coinsol = cc_coinsol_out[0]
new_solution = cc_wallet_puzzles.update_auditors_in_solution(
cc_coinsol.solution, auditor_info)
new_coinsol = CoinSolution(cc_coinsol.coin, new_solution)
coinsols.append(new_coinsol)
eph = cc_wallet_puzzles.create_spend_for_ephemeral(
cc_coinsol.coin, auditor, cc_coinsol_out[1])
coinsols.append(eph)
aud = cc_wallet_puzzles.create_spend_for_auditor(
auditor, cc_coinsol.coin)
coinsols.append(aud)
# Finish the auditor CoinSolution with new information
newinnerpuzhash = await wallets[colour].get_new_inner_hash()
outputamount = (sum([c.amount for c in my_cc_spends]) +
cc_discrepancies[colour] + auditor.amount)
innersol = self.wallet_state_manager.main_wallet.make_solution(
primaries=[{
"puzzlehash": newinnerpuzhash,
"amount": outputamount
}])
parent_info = await wallets[colour].get_parent_for_coin(auditor)
auditees[colour].append((
auditor.parent_coin_info,
auditor_inner_puzzle.get_tree_hash(),
auditor.amount,
outputamount,
))
sigs: List[G2Element] = await wallets[colour].get_sigs(
auditor_inner_puzzle, innersol)
aggsig = AugSchemeMPL.aggregate(sigs + [aggsig])
solution = cc_wallet_puzzles.cc_make_solution(
core,
(
parent_info.parent_name,
parent_info.inner_puzzle_hash,
parent_info.amount,
),
auditor.amount,
binutils.disassemble(auditor_inner_puzzle),
binutils.disassemble(innersol),
auditor_info,
auditees[colour],
)
cs = CoinSolution(
auditor,
Program.to([
cc_wallet_puzzles.cc_make_puzzle(
auditor_inner_puzzle.get_tree_hash(), core),
solution,
]),
)
coinsols.append(cs)
cs_eph = create_spend_for_ephemeral(auditor, auditor, outputamount)
coinsols.append(cs_eph)
cs_aud = create_spend_for_auditor(auditor, auditor)
coinsols.append(cs_aud)
spend_bundle = SpendBundle(coinsols, aggsig)
my_tx_records = []
if zero_spend_list is not None:
zero_spend_list.append(spend_bundle)
spend_bundle = SpendBundle.aggregate(zero_spend_list)
# Add transaction history hor this trade
now = uint64(int(time.time()))
if chia_spend_bundle is not None:
spend_bundle = SpendBundle.aggregate(
[spend_bundle, chia_spend_bundle])
if chia_discrepancy < 0:
tx_record = TransactionRecord(
confirmed_at_index=uint32(0),
created_at_time=now,
to_puzzle_hash=token_bytes(),
amount=uint64(abs(chia_discrepancy)),
fee_amount=uint64(0),
incoming=False,
confirmed=False,
sent=uint32(10),
spend_bundle=chia_spend_bundle,
additions=chia_spend_bundle.additions(),
removals=chia_spend_bundle.removals(),
wallet_id=uint32(1),
sent_to=[],
trade_id=std_hash(spend_bundle.name() + bytes(now)),
)
else:
tx_record = TransactionRecord(
confirmed_at_index=uint32(0),
created_at_time=uint64(int(time.time())),
to_puzzle_hash=token_bytes(),
amount=uint64(abs(chia_discrepancy)),
fee_amount=uint64(0),
incoming=True,
confirmed=False,
sent=uint32(10),
spend_bundle=chia_spend_bundle,
additions=chia_spend_bundle.additions(),
removals=chia_spend_bundle.removals(),
wallet_id=uint32(1),
sent_to=[],
trade_id=std_hash(spend_bundle.name() + bytes(now)),
)
my_tx_records.append(tx_record)
for colour, amount in cc_discrepancies.items():
wallet = wallets[colour]
if chia_discrepancy > 0:
tx_record = TransactionRecord(
confirmed_at_index=uint32(0),
created_at_time=uint64(int(time.time())),
to_puzzle_hash=token_bytes(),
amount=uint64(abs(amount)),
fee_amount=uint64(0),
incoming=False,
confirmed=False,
sent=uint32(10),
spend_bundle=spend_bundle,
additions=spend_bundle.additions(),
removals=spend_bundle.removals(),
wallet_id=wallet.wallet_info.id,
sent_to=[],
trade_id=std_hash(spend_bundle.name() + bytes(now)),
)
else:
tx_record = TransactionRecord(
confirmed_at_index=uint32(0),
created_at_time=uint64(int(time.time())),
to_puzzle_hash=token_bytes(),
amount=uint64(abs(amount)),
fee_amount=uint64(0),
incoming=True,
confirmed=False,
sent=uint32(10),
spend_bundle=spend_bundle,
additions=spend_bundle.additions(),
removals=spend_bundle.removals(),
wallet_id=wallet.wallet_info.id,
sent_to=[],
trade_id=std_hash(spend_bundle.name() + bytes(now)),
)
my_tx_records.append(tx_record)
tx_record = TransactionRecord(
confirmed_at_index=uint32(0),
created_at_time=uint64(int(time.time())),
to_puzzle_hash=token_bytes(),
amount=uint64(0),
fee_amount=uint64(0),
incoming=False,
confirmed=False,
sent=uint32(0),
spend_bundle=spend_bundle,
additions=spend_bundle.additions(),
removals=spend_bundle.removals(),
wallet_id=uint32(0),
sent_to=[],
trade_id=std_hash(spend_bundle.name() + bytes(now)),
)
now = uint64(int(time.time()))
trade_record: TradeRecord = TradeRecord(
confirmed_at_index=uint32(0),
accepted_at_time=now,
created_at_time=now,
my_offer=False,
sent=uint32(0),
spend_bundle=offer_spend_bundle,
tx_spend_bundle=spend_bundle,
additions=spend_bundle.additions(),
removals=spend_bundle.removals(),
trade_id=std_hash(spend_bundle.name() + bytes(now)),
status=uint32(TradeStatus.PENDING_CONFIRM.value),
sent_to=[],
)
await self.save_trade(trade_record)
await self.wallet_state_manager.add_pending_transaction(tx_record)
for tx in my_tx_records:
await self.wallet_state_manager.add_transaction(tx)
return True, trade_record, None
async def add_spendbundle(
self, new_spend: SpendBundle, to_pool: Mempool = None
) -> Tuple[Optional[uint64], MempoolInclusionStatus, Optional[Err]]:
"""
Tries to add spendbundle to either self.mempools or to_pool if it's specified.
Returns true if it's added in any of pools, Returns error if it fails.
"""
self.seen_bundle_hashes[new_spend.name()] = new_spend.name()
self.maybe_pop_seen()
# Calculate the cost and fees
program = best_solution_program(new_spend)
# npc contains names of the coins removed, puzzle_hashes and their spend conditions
fail_reason, npc_list, cost = calculate_cost_of_program(program)
if fail_reason:
return None, MempoolInclusionStatus.FAILED, fail_reason
# build removal list
removal_names: List[bytes32] = new_spend.removal_names()
additions = new_spend.additions()
additions_dict: Dict[bytes32, Coin] = {}
for add in additions:
additions_dict[add.name()] = add
addition_amount = uint64(0)
# Check additions for max coin amount
for coin in additions:
if coin.amount >= uint64.from_bytes(self.constants["MAX_COIN_AMOUNT"]):
return (
None,
MempoolInclusionStatus.FAILED,
Err.COIN_AMOUNT_EXCEEDS_MAXIMUM,
)
addition_amount = uint64(addition_amount + coin.amount)
# Check for duplicate outputs
addition_counter = collections.Counter(_.name() for _ in additions)
for k, v in addition_counter.items():
if v > 1:
return None, MempoolInclusionStatus.FAILED, Err.DUPLICATE_OUTPUT
# Spend might be valid for one pool but not for other
added_count = 0
errors: List[Err] = []
targets: List[Mempool]
# If the transaction is added to potential set (to be retried), this is set.
added_to_potential: bool = False
potential_error: Optional[Err] = None
if to_pool is not None:
targets = [to_pool]
else:
targets = list(self.mempools.values())
for pool in targets:
# Skip if already added
if new_spend.name() in pool.spends:
added_count += 1
continue
removal_record_dict: Dict[bytes32, CoinRecord] = {}
removal_coin_dict: Dict[bytes32, Coin] = {}
unknown_unspent_error: bool = False
removal_amount = uint64(0)
for name in removal_names:
removal_record = await self.unspent_store.get_coin_record(
name, pool.header
)
if removal_record is None and name not in additions_dict:
unknown_unspent_error = True
break
elif name in additions_dict:
removal_coin = additions_dict[name]
removal_record = CoinRecord(
removal_coin,
uint32(pool.header.height + 1),
uint32(0),
False,
False,
)
assert removal_record is not None
removal_amount = uint64(removal_amount + removal_record.coin.amount)
removal_record_dict[name] = removal_record
removal_coin_dict[name] = removal_record.coin
if unknown_unspent_error:
errors.append(Err.UNKNOWN_UNSPENT)
continue
if addition_amount > removal_amount:
return None, MempoolInclusionStatus.FAILED, Err.MINTING_COIN
fees = removal_amount - addition_amount
if cost == 0:
return None, MempoolInclusionStatus.FAILED, Err.UNKNOWN
fees_per_cost: float = fees / cost
# If pool is at capacity check the fee, if not then accept even without the fee
if pool.at_full_capacity():
if fees == 0:
errors.append(Err.INVALID_FEE_LOW_FEE)
continue
if fees_per_cost < pool.get_min_fee_rate():
errors.append(Err.INVALID_FEE_LOW_FEE)
continue
# Check removals against UnspentDB + DiffStore + Mempool + SpendBundle
# Use this information later when constructing a block
fail_reason, conflicts = await self.check_removals(
removal_record_dict, pool
)
# If there is a mempool conflict check if this spendbundle has a higher fee per cost than all others
tmp_error: Optional[Err] = None
conflicting_pool_items: Dict[bytes32, MempoolItem] = {}
if fail_reason is Err.MEMPOOL_CONFLICT:
for conflicting in conflicts:
sb: MempoolItem = pool.removals[conflicting.name()]
conflicting_pool_items[sb.name] = sb
for item in conflicting_pool_items.values():
if item.fee_per_cost >= fees_per_cost:
tmp_error = Err.MEMPOOL_CONFLICT
self.add_to_potential_tx_set(new_spend)
added_to_potential = True
potential_error = Err.MEMPOOL_CONFLICT
break
elif fail_reason:
errors.append(fail_reason)
continue
if tmp_error:
errors.append(tmp_error)
continue
# Verify conditions, create hash_key list for aggsig check
hash_key_pairs = []
error: Optional[Err] = None
for npc in npc_list:
coin_record: CoinRecord = removal_record_dict[npc.coin_name]
# Check that the revealed removal puzzles actually match the puzzle hash
if npc.puzzle_hash != coin_record.coin.puzzle_hash:
log.warning(
f"Mempool rejecting transaction because of wrong puzzle_hash"
)
log.warning(f"{npc.puzzle_hash} != {coin_record.coin.puzzle_hash}")
return None, MempoolInclusionStatus.FAILED, Err.WRONG_PUZZLE_HASH
error = mempool_check_conditions_dict(
coin_record, new_spend, npc.condition_dict, pool
)
if error:
if (
error is Err.ASSERT_BLOCK_INDEX_EXCEEDS_FAILED
or error is Err.ASSERT_BLOCK_AGE_EXCEEDS_FAILED
):
self.add_to_potential_tx_set(new_spend)
added_to_potential = True
potential_error = error
break
hash_key_pairs.extend(
hash_key_pairs_for_conditions_dict(
npc.condition_dict, npc.coin_name
)
)
if error:
errors.append(error)
continue
# Verify aggregated signature
if not new_spend.aggregated_signature.validate(hash_key_pairs):
return None, MempoolInclusionStatus.FAILED, Err.BAD_AGGREGATE_SIGNATURE
# Remove all conflicting Coins and SpendBundles
if fail_reason:
mitem: MempoolItem
for mitem in conflicting_pool_items.values():
pool.remove_spend(mitem)
new_item = MempoolItem(new_spend, fees_per_cost, uint64(fees), uint64(cost))
pool.add_to_pool(new_item, additions, removal_coin_dict)
added_count += 1
if added_count > 0:
return uint64(cost), MempoolInclusionStatus.SUCCESS, None
elif added_to_potential:
return uint64(cost), MempoolInclusionStatus.PENDING, potential_error
else:
return None, MempoolInclusionStatus.FAILED, errors[0]
async def add_spendbundle(
self,
new_spend: SpendBundle,
cached_result: Optional[CostResult] = None
) -> Tuple[Optional[uint64], MempoolInclusionStatus, Optional[Err]]:
"""
Tries to add spendbundle to either self.mempools or to_pool if it's specified.
Returns true if it's added in any of pools, Returns error if it fails.
"""
if self.peak is None:
return None, MempoolInclusionStatus.FAILED, Err.MEMPOOL_NOT_INITIALIZED
self.seen_bundle_hashes[new_spend.name()] = new_spend.name()
self.maybe_pop_seen()
if cached_result is None:
# Calculate the cost and fees
program = best_solution_program(new_spend)
# npc contains names of the coins removed, puzzle_hashes and their spend conditions
cached_result = calculate_cost_of_program(
program, self.constants.CLVM_COST_RATIO_CONSTANT, True)
npc_list = cached_result.npc_list
cost = cached_result.cost
if cached_result.error is not None:
return None, MempoolInclusionStatus.FAILED, Err(
cached_result.error)
# build removal list
removal_names: List[bytes32] = new_spend.removal_names()
additions = new_spend.additions()
additions_dict: Dict[bytes32, Coin] = {}
for add in additions:
additions_dict[add.name()] = add
addition_amount = uint64(0)
# Check additions for max coin amount
for coin in additions:
if coin.amount >= self.constants.MAX_COIN_AMOUNT:
return (
None,
MempoolInclusionStatus.FAILED,
Err.COIN_AMOUNT_EXCEEDS_MAXIMUM,
)
addition_amount = uint64(addition_amount + coin.amount)
# Check for duplicate outputs
addition_counter = collections.Counter(_.name() for _ in additions)
for k, v in addition_counter.items():
if v > 1:
return None, MempoolInclusionStatus.FAILED, Err.DUPLICATE_OUTPUT
# Check for duplicate inputs
removal_counter = collections.Counter(name for name in removal_names)
for k, v in removal_counter.items():
if v > 1:
return None, MempoolInclusionStatus.FAILED, Err.DOUBLE_SPEND
# Skip if already added
if new_spend.name() in self.mempool.spends:
return uint64(cost), MempoolInclusionStatus.SUCCESS, None
removal_record_dict: Dict[bytes32, CoinRecord] = {}
removal_coin_dict: Dict[bytes32, Coin] = {}
unknown_unspent_error: bool = False
removal_amount = uint64(0)
for name in removal_names:
removal_record = await self.coin_store.get_coin_record(name)
if removal_record is None and name not in additions_dict:
unknown_unspent_error = True
break
elif name in additions_dict:
removal_coin = additions_dict[name]
# TODO(straya): what timestamp to use here?
removal_record = CoinRecord(
removal_coin,
uint32(self.peak.height + 1),
uint32(0),
False,
False,
uint64(int(time.time())),
)
assert removal_record is not None
removal_amount = uint64(removal_amount +
removal_record.coin.amount)
removal_record_dict[name] = removal_record
removal_coin_dict[name] = removal_record.coin
if unknown_unspent_error:
return None, MempoolInclusionStatus.FAILED, Err.UNKNOWN_UNSPENT
if addition_amount > removal_amount:
print(addition_amount, removal_amount)
return None, MempoolInclusionStatus.FAILED, Err.MINTING_COIN
fees = removal_amount - addition_amount
assert_fee_sum: uint64 = uint64(0)
for npc in npc_list:
if ConditionOpcode.ASSERT_FEE in npc.condition_dict:
fee_list: List[ConditionVarPair] = npc.condition_dict[
ConditionOpcode.ASSERT_FEE]
for cvp in fee_list:
fee = int_from_bytes(cvp.vars[0])
assert_fee_sum = assert_fee_sum + fee
if fees < assert_fee_sum:
return (
None,
MempoolInclusionStatus.FAILED,
Err.ASSERT_FEE_CONDITION_FAILED,
)
if cost == 0:
return None, MempoolInclusionStatus.FAILED, Err.UNKNOWN
fees_per_cost: float = fees / cost
# If pool is at capacity check the fee, if not then accept even without the fee
if self.mempool.at_full_capacity():
if fees == 0:
return None, MempoolInclusionStatus.FAILED, Err.INVALID_FEE_LOW_FEE
if fees_per_cost < self.mempool.get_min_fee_rate():
return None, MempoolInclusionStatus.FAILED, Err.INVALID_FEE_LOW_FEE
# Check removals against UnspentDB + DiffStore + Mempool + SpendBundle
# Use this information later when constructing a block
fail_reason, conflicts = await self.check_removals(removal_record_dict)
# If there is a mempool conflict check if this spendbundle has a higher fee per cost than all others
tmp_error: Optional[Err] = None
conflicting_pool_items: Dict[bytes32, MempoolItem] = {}
if fail_reason is Err.MEMPOOL_CONFLICT:
for conflicting in conflicts:
sb: MempoolItem = self.mempool.removals[conflicting.name()]
conflicting_pool_items[sb.name] = sb
for item in conflicting_pool_items.values():
if item.fee_per_cost >= fees_per_cost:
self.add_to_potential_tx_set(new_spend, cached_result)
return (
uint64(cost),
MempoolInclusionStatus.PENDING,
Err.MEMPOOL_CONFLICT,
)
elif fail_reason:
return None, MempoolInclusionStatus.FAILED, fail_reason
if tmp_error:
return None, MempoolInclusionStatus.FAILED, tmp_error
# Verify conditions, create hash_key list for aggsig check
pks: List[G1Element] = []
msgs: List[bytes32] = []
error: Optional[Err] = None
for npc in npc_list:
coin_record: CoinRecord = removal_record_dict[npc.coin_name]
# Check that the revealed removal puzzles actually match the puzzle hash
if npc.puzzle_hash != coin_record.coin.puzzle_hash:
log.warning(
"Mempool rejecting transaction because of wrong puzzle_hash"
)
log.warning(
f"{npc.puzzle_hash} != {coin_record.coin.puzzle_hash}")
return None, MempoolInclusionStatus.FAILED, Err.WRONG_PUZZLE_HASH
error = mempool_check_conditions_dict(coin_record, new_spend,
npc.condition_dict,
uint32(self.peak.height + 1))
if error:
if error is Err.ASSERT_BLOCK_INDEX_EXCEEDS_FAILED or error is Err.ASSERT_BLOCK_AGE_EXCEEDS_FAILED:
self.add_to_potential_tx_set(new_spend, cached_result)
return uint64(cost), MempoolInclusionStatus.PENDING, error
break
for pk, message in pkm_pairs_for_conditions_dict(
npc.condition_dict, npc.coin_name):
pks.append(pk)
msgs.append(message)
if error:
return None, MempoolInclusionStatus.FAILED, error
# Verify aggregated signature
if len(pks) == 0 and len(msgs) == 0:
validates = new_spend.aggregated_signature == G2Element.infinity()
else:
validates = AugSchemeMPL.aggregate_verify(
pks, msgs, new_spend.aggregated_signature)
if not validates:
log.warning(f"Aggsig validation error {pks} {msgs} {new_spend}")
return None, MempoolInclusionStatus.FAILED, Err.BAD_AGGREGATE_SIGNATURE
# Remove all conflicting Coins and SpendBundles
if fail_reason:
mempool_item: MempoolItem
for mempool_item in conflicting_pool_items.values():
self.mempool.remove_spend(mempool_item)
new_item = MempoolItem(new_spend, fees_per_cost, uint64(fees),
cached_result)
self.mempool.add_to_pool(new_item, additions, removal_coin_dict)
return uint64(cost), MempoolInclusionStatus.SUCCESS, None
