async def _process_minting(
ctx: wire.Context,
minting_dict: HashBuilderDict[bytes, HashBuilderDict]) -> None:
"""Read, validate and serialize the asset groups of token minting."""
token_minting: CardanoTxMint = await ctx.call(CardanoTxItemAck(),
CardanoTxMint)
await show_warning_tx_contains_mint(ctx)
# until the CIP with canonical CBOR is finalized storing the seen_policy_ids is the only way we can check for
# duplicate policy_ids
seen_policy_ids: set[bytes] = set()
for _ in range(token_minting.asset_groups_count):
asset_group: CardanoAssetGroup = await ctx.call(
CardanoTxItemAck(), CardanoAssetGroup)
_validate_asset_group(asset_group, seen_policy_ids, is_mint=True)
seen_policy_ids.add(asset_group.policy_id)
tokens: HashBuilderDict[bytes, int] = HashBuilderDict(
asset_group.tokens_count)
with minting_dict.add(asset_group.policy_id, tokens):
await _process_minting_tokens(
ctx,
tokens,
asset_group.policy_id,
asset_group.tokens_count,
)
async def _process_asset_groups(
ctx: wire.Context,
asset_groups_dict: HashBuilderDict[bytes, HashBuilderDict[bytes, int]],
asset_groups_count: int,
should_show_tokens: bool,
) -> None:
"""Read, validate and serialize the asset groups of an output."""
# until the CIP with canonical CBOR is finalized storing the seen_policy_ids is the only way we can check for
# duplicate policy_ids
seen_policy_ids: set[bytes] = set()
for _ in range(asset_groups_count):
asset_group: CardanoAssetGroup = await ctx.call(
CardanoTxItemAck(), CardanoAssetGroup)
_validate_asset_group(asset_group, seen_policy_ids)
seen_policy_ids.add(asset_group.policy_id)
tokens: HashBuilderDict[bytes, int] = HashBuilderDict(
asset_group.tokens_count)
with asset_groups_dict.add(asset_group.policy_id, tokens):
await _process_tokens(
ctx,
tokens,
asset_group.policy_id,
asset_group.tokens_count,
should_show_tokens,
)
async def _process_auxiliary_data(
ctx: wire.Context,
keychain: seed.Keychain,
tx_body_builder_dict: HashBuilderDict,
protocol_magic: int,
network_id: int,
) -> None:
"""Read, validate, confirm and serialize the auxiliary data."""
auxiliary_data: CardanoTxAuxiliaryData = await ctx.call(
CardanoTxItemAck(), CardanoTxAuxiliaryData)
validate_auxiliary_data(auxiliary_data)
(
auxiliary_data_hash,
auxiliary_data_supplement,
) = get_auxiliary_data_hash_and_supplement(keychain, auxiliary_data,
protocol_magic, network_id)
await show_auxiliary_data(
ctx,
keychain,
auxiliary_data_hash,
auxiliary_data.catalyst_registration_parameters,
protocol_magic,
network_id,
)
tx_body_builder_dict.add(TX_BODY_KEY_AUXILIARY_DATA, auxiliary_data_hash)
await ctx.call(auxiliary_data_supplement, CardanoTxHostAck)
async def _process_withdrawals(
ctx: wire.Context,
keychain: seed.Keychain,
withdrawals_dict: HashBuilderDict[bytes, int],
withdrawals_count: int,
signing_mode: CardanoTxSigningMode,
protocol_magic: int,
network_id: int,
account_path_checker: AccountPathChecker,
) -> None:
"""Read, validate, confirm and serialize the withdrawals."""
if withdrawals_count == 0:
return
for _ in range(withdrawals_count):
withdrawal: CardanoTxWithdrawal = await ctx.call(
CardanoTxItemAck(), CardanoTxWithdrawal)
_validate_withdrawal(
withdrawal,
signing_mode,
account_path_checker,
)
reward_address_bytes = _derive_withdrawal_reward_address_bytes(
keychain, withdrawal, protocol_magic, network_id)
await confirm_withdrawal(ctx, withdrawal, reward_address_bytes,
network_id)
withdrawals_dict.add(reward_address_bytes, withdrawal.amount)
async def _process_witness_requests(
ctx: wire.Context,
keychain: seed.Keychain,
tx_hash: bytes,
witness_requests_count: int,
signing_mode: CardanoTxSigningMode,
transaction_has_token_minting: bool,
account_path_checker: AccountPathChecker,
) -> CardanoTxResponseType:
response: CardanoTxResponseType = CardanoTxItemAck()
for _ in range(witness_requests_count):
witness_request = await ctx.call(response, CardanoTxWitnessRequest)
_validate_witness_request(
witness_request,
signing_mode,
transaction_has_token_minting,
account_path_checker,
)
path = witness_request.path
await _show_witness_request(ctx, path, signing_mode)
if is_byron_path(path):
response = _get_byron_witness(keychain, path, tx_hash)
else:
response = _get_shelley_witness(keychain, path, tx_hash)
return response
async def _process_certificates(
ctx: wire.Context,
keychain: seed.Keychain,
certificates_list: HashBuilderList,
certificates_count: int,
signing_mode: CardanoTxSigningMode,
protocol_magic: int,
network_id: int,
account_path_checker: AccountPathChecker,
) -> None:
"""Read, validate, confirm and serialize the certificates."""
if certificates_count == 0:
return
for _ in range(certificates_count):
certificate: CardanoTxCertificate = await ctx.call(
CardanoTxItemAck(), CardanoTxCertificate)
validate_certificate(certificate, signing_mode, protocol_magic,
network_id, account_path_checker)
await _show_certificate(ctx, certificate, signing_mode)
if certificate.type == CardanoCertificateType.STAKE_POOL_REGISTRATION:
pool_parameters = certificate.pool_parameters
assert pool_parameters is not None # validate_certificate
pool_items_list: HashBuilderList = HashBuilderList(
POOL_REGISTRATION_CERTIFICATE_ITEMS_COUNT)
with certificates_list.append(pool_items_list):
for item in cborize_initial_pool_registration_certificate_fields(
certificate):
pool_items_list.append(item)
pool_owners_list: HashBuilderList[bytes] = HashBuilderList(
pool_parameters.owners_count)
with pool_items_list.append(pool_owners_list):
await _process_pool_owners(
ctx,
keychain,
pool_owners_list,
pool_parameters.owners_count,
protocol_magic,
network_id,
account_path_checker,
)
relays_list: HashBuilderList[
cbor.CborSequence] = HashBuilderList(
pool_parameters.relays_count)
with pool_items_list.append(relays_list):
await _process_pool_relays(ctx, relays_list,
pool_parameters.relays_count)
pool_items_list.append(
cborize_pool_metadata(pool_parameters.metadata))
else:
certificates_list.append(cborize_certificate(
keychain, certificate))
async def _process_inputs(
ctx: wire.Context,
inputs_list: HashBuilderList[tuple[bytes, int]],
inputs_count: int,
) -> None:
"""Read, validate and serialize the inputs."""
for _ in range(inputs_count):
input: CardanoTxInput = await ctx.call(CardanoTxItemAck(), CardanoTxInput)
inputs_list.append((input.prev_hash, input.prev_index))
async def _process_pool_relays(
ctx: wire.Context,
relays_list: HashBuilderList[cbor.CborSequence],
relays_count: int,
) -> None:
for _ in range(relays_count):
relay: CardanoPoolRelayParameters = await ctx.call(
CardanoTxItemAck(), CardanoPoolRelayParameters)
validate_pool_relay(relay)
relays_list.append(cborize_pool_relay(relay))
async def _process_collateral_inputs(
ctx: wire.Context,
collateral_inputs_list: HashBuilderList[tuple[bytes, int]],
collateral_inputs_count: int,
) -> None:
"""Read, validate, show and serialize the collateral inputs."""
for _ in range(collateral_inputs_count):
collateral_input: CardanoTxCollateralInput = await ctx.call(
CardanoTxItemAck(), CardanoTxCollateralInput)
_validate_collateral_input(collateral_input)
await confirm_collateral_input(ctx, collateral_input)
collateral_inputs_list.append(
(collateral_input.prev_hash, collateral_input.prev_index))
async def _process_minting_tokens(
ctx: wire.Context,
tokens: HashBuilderDict[bytes, int],
policy_id: bytes,
tokens_count: int,
) -> None:
"""Read, validate, confirm and serialize the tokens of an asset group."""
for _ in range(tokens_count):
token: CardanoToken = await ctx.call(CardanoTxItemAck(), CardanoToken)
_validate_token(token, is_mint=True)
await confirm_token_minting(ctx, policy_id, token)
assert token.mint_amount is not None # _validate_token
tokens.add(token.asset_name_bytes, token.mint_amount)
async def _process_minting(
ctx: wire.Context,
minting_dict: HashBuilderDict[bytes, HashBuilderDict]) -> None:
"""Read, validate and serialize the asset groups of token minting."""
token_minting: CardanoTxMint = await ctx.call(CardanoTxItemAck(),
CardanoTxMint)
await show_warning_tx_contains_mint(ctx)
for _ in range(token_minting.asset_groups_count):
asset_group: CardanoAssetGroup = await ctx.call(
CardanoTxItemAck(), CardanoAssetGroup)
_validate_asset_group(asset_group, is_mint=True)
tokens: HashBuilderDict[bytes, int] = HashBuilderDict(
asset_group.tokens_count, INVALID_TOKEN_BUNDLE_MINT)
with minting_dict.add(asset_group.policy_id, tokens):
await _process_minting_tokens(
ctx,
tokens,
asset_group.policy_id,
asset_group.tokens_count,
)
async def _process_inputs(
ctx: wire.Context,
inputs_list: HashBuilderList[tuple[bytes, int]],
inputs_count: int,
signing_mode: CardanoTxSigningMode,
) -> None:
"""Read, validate and serialize the inputs."""
for _ in range(inputs_count):
input: CardanoTxInput = await ctx.call(CardanoTxItemAck(),
CardanoTxInput)
_validate_input(input)
if signing_mode == CardanoTxSigningMode.PLUTUS_TRANSACTION:
await confirm_input(ctx, input)
inputs_list.append((input.prev_hash, input.prev_index))
async def _process_tokens(
ctx: wire.Context,
tokens_dict: HashBuilderDict[bytes, int],
policy_id: bytes,
tokens_count: int,
should_show_tokens: bool,
) -> None:
"""Read, validate, confirm and serialize the tokens of an asset group."""
for _ in range(tokens_count):
token: CardanoToken = await ctx.call(CardanoTxItemAck(), CardanoToken)
_validate_token(token)
if should_show_tokens:
await confirm_sending_token(ctx, policy_id, token)
assert token.amount is not None # _validate_token
tokens_dict.add(token.asset_name_bytes, token.amount)
async def _process_required_signers(
ctx: wire.Context,
keychain: seed.Keychain,
required_signers_list: HashBuilderList[bytes],
required_signers_count: int,
) -> None:
"""Read, validate, show and serialize the required signers."""
for _ in range(required_signers_count):
required_signer: CardanoTxRequiredSigner = await ctx.call(
CardanoTxItemAck(), CardanoTxRequiredSigner)
_validate_required_signer(required_signer)
await confirm_required_signer(ctx, required_signer)
key_hash = required_signer.key_hash or get_public_key_hash(
keychain, required_signer.key_path)
required_signers_list.append(key_hash)
async def _process_minting_tokens(
ctx: wire.Context,
tokens: HashBuilderDict[bytes, int],
policy_id: bytes,
tokens_count: int,
) -> None:
"""Read, validate, confirm and serialize the tokens of an asset group."""
# until the CIP with canonical CBOR is finalized storing the seen_asset_name_bytes is the only way we can check for
# duplicate tokens
seen_asset_name_bytes: set[bytes] = set()
for _ in range(tokens_count):
token: CardanoToken = await ctx.call(CardanoTxItemAck(), CardanoToken)
_validate_token(token, seen_asset_name_bytes, is_mint=True)
seen_asset_name_bytes.add(token.asset_name_bytes)
await confirm_token_minting(ctx, policy_id, token)
assert token.mint_amount is not None # _validate_token
tokens.add(token.asset_name_bytes, token.mint_amount)
async def _process_withdrawals(
ctx: wire.Context,
keychain: seed.Keychain,
withdrawals_dict: HashBuilderDict[bytes, int],
withdrawals_count: int,
signing_mode: CardanoTxSigningMode,
protocol_magic: int,
network_id: int,
account_path_checker: AccountPathChecker,
) -> None:
"""Read, validate, confirm and serialize the withdrawals."""
if withdrawals_count == 0:
return
# until the CIP with canonical CBOR is finalized storing the seen_withdrawals is the only way we can check for
# duplicate withdrawals
seen_withdrawals: set[tuple[int, ...] | bytes] = set()
for _ in range(withdrawals_count):
withdrawal: CardanoTxWithdrawal = await ctx.call(
CardanoTxItemAck(), CardanoTxWithdrawal
)
_validate_withdrawal(
withdrawal, seen_withdrawals, signing_mode, account_path_checker
)
await confirm_withdrawal(ctx, withdrawal)
reward_address_type = (
CardanoAddressType.REWARD
if withdrawal.path
else CardanoAddressType.REWARD_SCRIPT
)
reward_address = derive_address_bytes(
keychain,
CardanoAddressParametersType(
address_type=reward_address_type,
address_n_staking=withdrawal.path,
script_staking_hash=withdrawal.script_hash,
),
protocol_magic,
network_id,
)
withdrawals_dict.add(reward_address, withdrawal.amount)
async def _process_pool_owners(
ctx: wire.Context,
keychain: seed.Keychain,
pool_owners_list: HashBuilderList[bytes],
owners_count: int,
protocol_magic: int,
network_id: int,
account_path_checker: AccountPathChecker,
) -> None:
owners_as_path_count = 0
for _ in range(owners_count):
owner: CardanoPoolOwner = await ctx.call(CardanoTxItemAck(), CardanoPoolOwner)
validate_pool_owner(owner, account_path_checker)
await _show_pool_owner(ctx, keychain, owner, protocol_magic, network_id)
pool_owners_list.append(cborize_pool_owner(keychain, owner))
if owner.staking_key_path:
owners_as_path_count += 1
assert_certificate_cond(owners_as_path_count == 1)
async def _process_asset_groups(
ctx: wire.Context,
asset_groups_dict: HashBuilderDict[bytes, HashBuilderDict[bytes, int]],
asset_groups_count: int,
should_show_tokens: bool,
) -> None:
"""Read, validate and serialize the asset groups of an output."""
for _ in range(asset_groups_count):
asset_group: CardanoAssetGroup = await ctx.call(
CardanoTxItemAck(), CardanoAssetGroup)
_validate_asset_group(asset_group)
tokens: HashBuilderDict[bytes, int] = HashBuilderDict(
asset_group.tokens_count, INVALID_TOKEN_BUNDLE_OUTPUT)
with asset_groups_dict.add(asset_group.policy_id, tokens):
await _process_tokens(
ctx,
tokens,
asset_group.policy_id,
asset_group.tokens_count,
should_show_tokens,
)
async def _process_outputs(
ctx: wire.Context,
keychain: seed.Keychain,
outputs_list: HashBuilderList,
outputs_count: int,
signing_mode: CardanoTxSigningMode,
protocol_magic: int,
network_id: int,
account_path_checker: AccountPathChecker,
) -> None:
"""Read, validate, confirm and serialize the outputs, return the total non-change output amount."""
total_amount = 0
for _ in range(outputs_count):
output: CardanoTxOutput = await ctx.call(CardanoTxItemAck(),
CardanoTxOutput)
_validate_output(
output,
signing_mode,
protocol_magic,
network_id,
account_path_checker,
)
should_show_output = _should_show_output(output, signing_mode)
if should_show_output:
await _show_output(
ctx,
keychain,
output,
protocol_magic,
network_id,
signing_mode,
)
output_address = _get_output_address(keychain, protocol_magic,
network_id, output)
has_datum_hash = output.datum_hash is not None
output_list: HashBuilderList = HashBuilderList(2 + int(has_datum_hash))
with outputs_list.append(output_list):
output_list.append(output_address)
if output.asset_groups_count == 0:
# output structure is: [address, amount, datum_hash?]
output_list.append(output.amount)
else:
# output structure is: [address, [amount, asset_groups], datum_hash?]
output_value_list: HashBuilderList = HashBuilderList(2)
with output_list.append(output_value_list):
output_value_list.append(output.amount)
asset_groups_dict: HashBuilderDict[bytes, HashBuilderDict[
bytes,
int]] = HashBuilderDict(output.asset_groups_count,
INVALID_TOKEN_BUNDLE_OUTPUT)
with output_value_list.append(asset_groups_dict):
await _process_asset_groups(
ctx,
asset_groups_dict,
output.asset_groups_count,
should_show_output,
)
if has_datum_hash:
output_list.append(output.datum_hash)
total_amount += output.amount
if total_amount > LOVELACE_MAX_SUPPLY:
raise wire.ProcessError("Total transaction amount is out of range!")