Ejemplo n.º 1
0
def compose_transaction(db,
                        name,
                        params,
                        encoding='auto',
                        fee_per_kb=config.DEFAULT_FEE_PER_KB,
                        regular_dust_size=config.DEFAULT_REGULAR_DUST_SIZE,
                        multisig_dust_size=config.DEFAULT_MULTISIG_DUST_SIZE,
                        op_return_value=config.DEFAULT_OP_RETURN_VALUE,
                        pubkey=None,
                        allow_unconfirmed_inputs=False,
                        fee=None,
                        fee_provided=0):
    """Create and return a transaction."""

    # Get provided pubkeys.
    if type(pubkey) == str:
        provided_pubkeys = [pubkey]
    elif type(pubkey) == list:
        provided_pubkeys = pubkey
    elif pubkey == None:
        provided_pubkeys = []
    else:
        assert False

    # Get additional pubkeys from `source` and `destination` params.
    # Convert `source` and `destination` to pubkeyhash form.
    for address_name in ['source', 'destination']:
        if address_name in params:
            address = params[address_name]
            provided_pubkeys += script.extract_pubkeys(address)
            params[address_name] = script.make_pubkeyhash(address)

    # Check validity of collected pubkeys.
    for pubkey in provided_pubkeys:
        if not script.is_fully_valid(binascii.unhexlify(pubkey)):
            raise script.AddressError('invalid public key: {}'.format(pubkey))

    compose_method = sys.modules['counterpartylib.lib.messages.{}'.format(
        name)].compose
    compose_params = inspect.getargspec(compose_method)[0]
    missing_params = [
        p for p in compose_params if p not in params and p != 'db'
    ]
    for param in missing_params:
        params[param] = None

    # try:  # NOTE: For debugging, e.g. with `Invalid Params` error.
    tx_info = compose_method(db, **params)
    return transaction.construct(
        db,
        tx_info,
        encoding=encoding,
        fee_per_kb=fee_per_kb,
        regular_dust_size=regular_dust_size,
        multisig_dust_size=multisig_dust_size,
        op_return_value=op_return_value,
        provided_pubkeys=provided_pubkeys,
        allow_unconfirmed_inputs=allow_unconfirmed_inputs,
        exact_fee=fee,
        fee_provided=fee_provided)
Ejemplo n.º 2
0
def compose_transaction(
        db,
        name,
        params,
        encoding='auto',
        fee_per_kb=None,
        estimate_fee_per_kb=None,
        estimate_fee_per_kb_conf_target=config.ESTIMATE_FEE_CONF_TARGET,
        estimate_fee_per_kb_mode=config.ESTIMATE_FEE_MODE,
        regular_dust_size=config.DEFAULT_REGULAR_DUST_SIZE,
        multisig_dust_size=config.DEFAULT_MULTISIG_DUST_SIZE,
        op_return_value=config.DEFAULT_OP_RETURN_VALUE,
        pubkey=None,
        allow_unconfirmed_inputs=False,
        fee=None,
        fee_provided=0,
        unspent_tx_hash=None,
        custom_inputs=None,
        dust_return_pubkey=None,
        disable_utxo_locks=False,
        extended_tx_info=False,
        p2sh_source_multisig_pubkeys=None,
        p2sh_source_multisig_pubkeys_required=None,
        p2sh_pretx_txid=None,
        old_style_api=True,
        segwit=False):
    """Create and return a transaction."""

    # Get provided pubkeys.
    if type(pubkey) == str:
        provided_pubkeys = [pubkey]
    elif type(pubkey) == list:
        provided_pubkeys = pubkey
    elif pubkey == None:
        provided_pubkeys = []
    else:
        assert False

    # Get additional pubkeys from `source` and `destination` params.
    # Convert `source` and `destination` to pubkeyhash form.
    for address_name in ['source', 'destination']:
        if address_name in params:
            address = params[address_name]
            if isinstance(address, list):
                """pubkey_list = []
                for iaddr in address:
                    provided_pubkeys += script.extract_pubkeys(iaddr)
                    pubkey_list.append(script.make_pubkeyhash(iaddr))
                params[address_name] = pubkey_list"""
            else:
                provided_pubkeys += script.extract_pubkeys(address)
                params[address_name] = script.make_pubkeyhash(address)

    # Check validity of collected pubkeys.
    for pubkey in provided_pubkeys:
        if not script.is_fully_valid(binascii.unhexlify(pubkey)):
            raise script.AddressError('invalid public key: {}'.format(pubkey))

    compose_method = sys.modules['counterpartylib.lib.messages.{}'.format(
        name)].compose
    compose_params = inspect.getargspec(compose_method)[0]
    missing_params = [
        p for p in compose_params if p not in params and p != 'db'
    ]
    for param in missing_params:
        params[param] = None

    # dont override fee_per_kb if specified
    if fee_per_kb is not None:
        estimate_fee_per_kb = False
    else:
        fee_per_kb = config.DEFAULT_FEE_PER_KB

    if 'extended_tx_info' in params:
        extended_tx_info = params['extended_tx_info']
        del params['extended_tx_info']

    if 'old_style_api' in params:
        old_style_api = params['old_style_api']
        del params['old_style_api']

    if 'segwit' in params:
        segwit = params['segwit']
        del params['segwit']

    tx_info = compose_method(db, **params)
    return transaction.construct(
        db,
        tx_info,
        encoding=encoding,
        fee_per_kb=fee_per_kb,
        estimate_fee_per_kb=estimate_fee_per_kb,
        estimate_fee_per_kb_conf_target=estimate_fee_per_kb_conf_target,
        regular_dust_size=regular_dust_size,
        multisig_dust_size=multisig_dust_size,
        op_return_value=op_return_value,
        provided_pubkeys=provided_pubkeys,
        allow_unconfirmed_inputs=allow_unconfirmed_inputs,
        exact_fee=fee,
        fee_provided=fee_provided,
        unspent_tx_hash=unspent_tx_hash,
        custom_inputs=custom_inputs,
        dust_return_pubkey=dust_return_pubkey,
        disable_utxo_locks=disable_utxo_locks,
        extended_tx_info=extended_tx_info,
        p2sh_source_multisig_pubkeys=p2sh_source_multisig_pubkeys,
        p2sh_source_multisig_pubkeys_required=
        p2sh_source_multisig_pubkeys_required,
        p2sh_pretx_txid=p2sh_pretx_txid,
        old_style_api=old_style_api,
        segwit=segwit)