def post_process_compiled_contracts(compiled_contracts):
for contract_data in compiled_contracts:
bytecode = contract_data.get('bytecode')
if is_string(bytecode):
bytecode_placeholder_locations = find_placeholder_locations(bytecode)
bytecode_link_references = normalize_placeholder_link_references(
bytecode_placeholder_locations,
compiled_contracts,
)
else:
bytecode_link_references = tuple()
bytecode_runtime = contract_data.get('bytecode_runtime')
if is_string(bytecode_runtime):
bytecode_runtime_placeholder_locations = find_placeholder_locations(
bytecode_runtime,
)
bytecode_runtime_link_references = normalize_placeholder_link_references(
bytecode_runtime_placeholder_locations,
compiled_contracts,
)
else:
bytecode_runtime_link_references = tuple()
yield pipe(
contract_data,
partial(assoc, key='linkrefs', value=bytecode_link_references),
partial(assoc, key='linkrefs_runtime', value=bytecode_runtime_link_references),
)
def post_process_compiled_contracts(compiled_contracts):
for contract_data in compiled_contracts:
bytecode = contract_data.get('bytecode')
if is_string(bytecode):
bytecode_placeholder_locations = find_placeholder_locations(bytecode)
bytecode_link_references = normalize_placeholder_link_references(
bytecode_placeholder_locations,
compiled_contracts,
)
else:
bytecode_link_references = tuple()
bytecode_runtime = contract_data.get('bytecode_runtime')
if is_string(bytecode_runtime):
bytecode_runtime_placeholder_locations = find_placeholder_locations(
bytecode_runtime,
)
bytecode_runtime_link_references = normalize_placeholder_link_references(
bytecode_runtime_placeholder_locations,
compiled_contracts,
)
else:
bytecode_runtime_link_references = tuple()
yield pipe(
contract_data,
partial(assoc, key='linkrefs', value=bytecode_link_references),
partial(assoc, key='linkrefs_runtime', value=bytecode_runtime_link_references),
)
def normalize_compilation_result(compilation_result):
for key_from_compiler, raw_contract_data in compilation_result.items():
contract_data = normalize_combined_json_contract_data(raw_contract_data)
source_path, contract_name = normalize_combined_json_contract_key(
key_from_compiler,
contract_data,
)
yield pipe(
contract_data,
partial(assoc, key='source_path', value=source_path),
partial(assoc, key='name', value=contract_name),
)
def normalize_compilation_result(compilation_result):
for key_from_compiler, raw_contract_data in compilation_result.items():
contract_data = normalize_combined_json_contract_data(raw_contract_data)
source_path, contract_name = normalize_combined_json_contract_key(
key_from_compiler,
contract_data,
)
yield pipe(
contract_data,
partial(assoc, key='source_path', value=source_path),
partial(assoc, key='name', value=contract_name),
)
def normalize_compilation_result(compilation_result):
"""
Take the result from the --standard-json compilation and flatten it into an
interable of contract data dictionaries.
"""
for source_path, file_contracts in compilation_result['contracts'].items():
for contract_name, raw_contract_data in file_contracts.items():
contract_data = normalize_standard_json_contract_data(raw_contract_data)
yield pipe(
contract_data,
partial(assoc, key='source_path', value=source_path),
partial(assoc, key='name', value=contract_name),
)
def serialize_full_transaction(transaction, block, transaction_index, is_pending):
if is_pending:
block_number = None
block_hash = None
transaction_index = None
else:
block_number = block['number']
block_hash = block['hash']
return pipe(
transaction,
partial(assoc, key='block_number', value=block_number),
partial(assoc, key='block_hash', value=block_hash),
partial(assoc, key='transaction_index', value=transaction_index),
)
def mine_blocks(self, num_blocks=1, coinbase=None):
for _ in range(num_blocks):
block_to_mine = dissoc(self.block, 'hash')
block_hash = fake_rlp_hash(block_to_mine)
mined_block = assoc(block_to_mine, 'hash', block_hash)
assign_block_info = compose(
partial(assoc, key='block_number',
value=mined_block['number']),
partial(assoc, key='block_hash', value=mined_block['hash']),
)
mined_block['transactions'] = tuple(
assign_block_info(transaction)
for transaction in mined_block['transactions'])
self.blocks.append(mined_block)
self.block = make_block_from_parent(mined_block)
yield block_hash
def _reduce_middleware_fn(request_fn, middleware, web3, request_id):
"""
The reduce function for wrapping the provider request in the middlewares.
"""
return partial(
middleware(request_fn, web3),
request_id=request_id,
)
def add_full_dependencies_to_compiled_contracts(compiled_contracts):
dependency_graph = compute_direct_dependency_graph(compiled_contracts)
deploy_order = compute_deploy_order(dependency_graph)
for contract_data in compiled_contracts:
full_dependencies = compute_recursive_contract_dependencies(
contract_data['name'],
dependency_graph,
)
ordered_full_dependencies = tuple(
contract_name for contract_name in deploy_order
if contract_name in full_dependencies)
yield pipe(
contract_data,
partial(assoc, key='full_dependencies', value=full_dependencies),
partial(assoc,
key='ordered_full_dependencies',
value=ordered_full_dependencies),
)
def validate_unique(values):
if not isdistinct(values):
duplicates = pipe(
values,
frequencies, # get the frequencies
partial(valfilter,
lambda v: v > 1), # filter to ones that occure > 1
sorted, # sort them
tuple, # cast them to an immutiable form
)
raise ValidationError(
"The values provided are not unique. Duplicates: {0}".format(
', '.join((str(value) for value in duplicates))))
def link_bytecode_by_name(bytecode, link_references, **link_names_and_values):
"""
Helper function for linking bytecode with a mapping of link reference names
to their values.
TODO: fix this as it now needs access to the source file paths which isn't ideal
"""
link_fn = compose(*(partial(
insert_link_value,
value=link_names_and_values[expand_placeholder(
linkref['name'], link_names_and_values.keys())],
offset=linkref['start'],
) for linkref in link_references))
linked_bytecode = link_fn(bytecode)
return linked_bytecode
def validate_unique(values, title="Value"):
if not isdistinct(values):
duplicates = pipe(
values,
frequencies, # get the frequencies
partial(valfilter, lambda v: v > 1), # filter to ones that occure > 1
sorted, # sort them
tuple, # cast them to an immutiable form
)
raise ValidationError(
"{title} does not contain unique items. Duplicates: {0}".format(
', '.join((str(value) for value in duplicates)),
title=title,
)
)
def validate_unique(values, title="Value"):
if not isdistinct(values):
duplicates = pipe(
values,
frequencies, # get the frequencies
partial(valfilter,
lambda v: v > 1), # filter to ones that occure > 1
sorted, # sort them
tuple, # cast them to an immutiable form
)
raise ValidationError(
"{title} does not contain unique items. Duplicates: {0}".format(
', '.join((str(value) for value in duplicates)),
title=title,
))
def create_log_filter(self,
from_block=None,
to_block=None,
address=None,
topics=None):
self.validator.validate_inbound_filter_params(
from_block=from_block,
to_block=to_block,
address=address,
topics=topics,
)
(
raw_from_block,
raw_to_block,
raw_address,
raw_topics,
) = self.normalizer.normalize_inbound_filter_params(
from_block=from_block,
to_block=to_block,
address=address,
topics=topics,
)
raw_filter_id = next(self._filter_counter)
raw_filter_params = {
'from_block': raw_from_block,
'to_block': raw_to_block,
'addresses': raw_address,
'topics': raw_topics,
}
filter_fn = partial(check_if_log_matches, **raw_filter_params)
new_filter = Filter(
filter_params=raw_filter_params,
filter_fn=filter_fn,
)
self._log_filters[raw_filter_id] = new_filter
if is_integer(raw_from_block):
if is_integer(raw_to_block):
upper_bound = raw_to_block + 1
else:
upper_bound = self.get_block_by_number('pending')['number']
for block_number in range(raw_from_block, upper_bound):
block = self.get_block_by_number(block_number)
self._add_log_entries_to_filter(block, new_filter)
filter_id = self.normalizer.normalize_outbound_filter_id(raw_filter_id)
return filter_id
def link_bytecode_by_name(bytecode, link_references, **link_names_and_values):
"""
Helper function for linking bytecode with a mapping of link reference names
to their values.
TODO: fix this as it now needs access to the source file paths which isn't ideal
"""
link_fn = compose(*(
partial(
insert_link_value,
value=link_names_and_values[
expand_placeholder(linkref['name'], link_names_and_values.keys())
],
offset=linkref['start'],
)
for linkref
in link_references
))
linked_bytecode = link_fn(bytecode)
return linked_bytecode
def get_logs(self, from_block=None, to_block=None, address=None, topics=None):
self.validator.validate_inbound_filter_params(
from_block=from_block,
to_block=to_block,
address=address,
topics=topics,
)
(
raw_from_block,
raw_to_block,
raw_address,
raw_topics,
) = self.normalizer.normalize_inbound_filter_params(
from_block=from_block,
to_block=to_block,
address=address,
topics=topics,
)
# Setup the filter object
raw_filter_params = {
'from_block': raw_from_block,
'to_block': raw_to_block,
'addresses': raw_address,
'topics': raw_topics,
}
filter_fn = partial(
check_if_log_matches,
**raw_filter_params,
)
log_filter = Filter(
filter_params=raw_filter_params,
filter_fn=filter_fn,
)
# Set from/to block defaults
if raw_from_block is None:
raw_from_block = 'latest'
if raw_to_block is None:
raw_to_block = 'latest'
# Determine lower bound for block range.
if isinstance(raw_from_block, int):
lower_bound = raw_from_block
else:
lower_bound = self.get_block_by_number(raw_from_block)['number']
# Determine upper bound for block range.
if isinstance(raw_to_block, int):
upper_bound = raw_to_block
else:
upper_bound = self.get_block_by_number(raw_to_block)['number']
# Enumerate the blocks in the block range to find all log entries which match.
for block_number in range(lower_bound, upper_bound + 1):
block = self.get_block_by_number(block_number)
for transaction_hash in block['transactions']:
receipt = self.get_transaction_receipt(transaction_hash)
for log_entry in receipt['logs']:
raw_log_entry = self.normalizer.normalize_inbound_log_entry(log_entry)
log_filter.add(raw_log_entry)
# Return the matching log entries
for item in log_filter.get_all():
yield self.normalizer.normalize_outbound_log_entry(item)
from __future__ import unicode_literals
from cytoolz.functoolz import (
compose,
partial,
)
from eth_utils import (
int_to_big_endian,
pad_left,
)
zpad = partial(pad_left, pad_with=b'\x00')
zpad32 = partial(pad_left, to_size=32, pad_with=b'\x00')
int_to_32byte_big_endian = compose(
zpad32,
int_to_big_endian,
)
transaction_params_remapper = apply_key_map(TRANSACTION_PARAMS_MAPPING)
TRANSACTION_PARAMS_FORMATTERS = {
'gas': to_integer_if_hex,
'gasPrice': to_integer_if_hex,
'value': to_integer_if_hex,
}
transaction_params_formatter = apply_formatters_to_dict(TRANSACTION_PARAMS_FORMATTERS)
TRANSACTION_FORMATTERS = {
'to': apply_formatter_if(partial(operator.eq, b''), static_return(None)),
}
transaction_formatter = apply_formatters_to_dict(TRANSACTION_FORMATTERS)
RECEIPT_FORMATTERS = {
'logs': apply_formatter_to_array(log_key_remapper),
}
receipt_formatter = apply_formatters_to_dict(RECEIPT_FORMATTERS)
ethereum_tester_middleware = construct_formatting_middleware(
TRANSACTION_NORMALIZERS = {
'from': to_canonical_address,
'to': to_empty_or_canonical_address,
'gas': identity,
'gas_price': identity,
'nonce': identity,
'value': identity,
'data': decode_hex,
'r': identity,
's': identity,
'v': identity,
}
normalize_transaction = partial(normalize_dict, normalizers=TRANSACTION_NORMALIZERS)
LOG_ENTRY_NORMALIZERS = {
'type': identity,
'log_index': identity,
'transaction_index': identity,
'transaction_hash': decode_hex,
'block_hash': partial(normalize_if, conditional_fn=is_string, normalizer=decode_hex),
'block_number': identity,
'address': to_canonical_address,
'data': decode_hex,
'topics': partial(normalize_array, normalizer=decode_hex),
}
is_array_of_strings,
)
from .formatting import (
construct_formatting_middleware, )
def bytes_to_ascii(value):
return codecs.decode(value, 'ascii')
to_ascii_if_bytes = apply_formatter_if(is_bytes, bytes_to_ascii)
to_integer_if_hex = apply_formatter_if(is_string, hex_to_integer)
block_number_formatter = apply_formatter_if(is_integer, integer_to_hex)
is_false = partial(operator.is_, False)
is_not_false = complement(is_false)
is_not_null = complement(is_null)
@curry
def to_hexbytes(num_bytes, val, variable_length=False):
if isinstance(val, (str, int, bytes)):
result = HexBytes(val)
else:
raise TypeError("Cannot convert %r to HexBytes" % val)
extra_bytes = len(result) - num_bytes
if extra_bytes == 0 or (variable_length and extra_bytes < 0):
return result
import pytest
from cytoolz.functoolz import (
partial, )
from web3.utils.blocks import (
select_method_for_block_identifier, )
selector_fn = partial(
select_method_for_block_identifier,
if_hash='test_hash',
if_number='test_number',
if_predefined='test_predefined',
)
@pytest.mark.parametrize(
'input,expected',
(
('latest', 'test_predefined'),
('pending', 'test_predefined'),
('earliest', 'test_predefined'),
(-1, ValueError),
(0, 'test_number'),
(1, 'test_number'),
(4000000, 'test_number'),
('0x0', 'test_number'),
('0x00', 'test_number'),
('0x1', 'test_number'),
('0x01', 'test_number'),
(hex(4000000), 'test_number'),
transaction_params_remapper = apply_key_map(TRANSACTION_PARAMS_MAPPING)
TRANSACTION_PARAMS_FORMATTERS = {
'gas': to_integer_if_hex,
'gasPrice': to_integer_if_hex,
'value': to_integer_if_hex,
}
transaction_params_formatter = apply_formatters_to_dict(TRANSACTION_PARAMS_FORMATTERS)
TRANSACTION_FORMATTERS = {
'to': apply_formatter_if(static_return(None), partial(operator.eq, b'')),
}
transaction_formatter = apply_formatters_to_dict(TRANSACTION_FORMATTERS)
ethereum_tester_middleware = construct_formatting_middleware(
request_formatters={
# Eth
'eth_getBlockByNumber': apply_formatters_to_args(
apply_formatter_if(to_integer_if_hex, is_not_named_block),
),
'eth_getFilterChanges': apply_formatters_to_args(hex_to_integer),
'eth_getFilterLogs': apply_formatters_to_args(hex_to_integer),
'eth_getBlockTransactionCountByNumber': apply_formatters_to_args(
from .formatting import (
construct_formatting_middleware,
)
def bytes_to_ascii(value):
return codecs.decode(value, 'ascii')
to_ascii_if_bytes = apply_formatter_if(is_bytes, bytes_to_ascii)
to_integer_if_hex = apply_formatter_if(is_string, hex_to_integer)
block_number_formatter = apply_formatter_if(is_integer, integer_to_hex)
is_false = partial(operator.is_, False)
is_not_false = complement(is_false)
is_not_null = complement(is_null)
def is_array_of_strings(value):
if not is_list_like(value):
return False
return all((is_string(item) for item in value))
def is_array_of_dicts(value):
if not is_list_like(value):
return False
return all((is_dict(item) for item in value))
import pytest
from cytoolz.functoolz import (
partial,
)
from web3.utils.blocks import (
select_method_for_block_identifier,
)
selector_fn = partial(
select_method_for_block_identifier,
if_hash='test_hash',
if_number='test_number',
if_predefined='test_predefined',
)
@pytest.mark.parametrize(
'input,expected',
(
('latest', 'test_predefined'),
('pending', 'test_predefined'),
('earliest', 'test_predefined'),
(-1, ValueError),
(0, 'test_number'),
(1, 'test_number'),
(4000000, 'test_number'),
('0x0', 'test_number'),
('0x00', 'test_number'),
encode_hex,
is_address,
is_bytes,
is_canonical_address,
is_dict,
)
from .common import (
normalize_if,
normalize_dict,
normalize_array,
)
normalize_account = to_checksum_address
normalize_account_list = partial(normalize_array, normalizer=normalize_account)
to_empty_or_checksum_address = apply_one_of_formatters((
(lambda addr: addr == b'', lambda addr: ''),
(is_canonical_address, to_checksum_address),
))
TRANSACTION_NORMALIZERS = {
"hash": encode_hex,
"nonce": identity,
"block_hash": partial(normalize_if, conditional_fn=is_bytes, normalizer=encode_hex),
"block_number": identity,
"transaction_index": identity,
"from": to_checksum_address,
"to": to_empty_or_checksum_address,
"value": identity,