def validating_rpc_caller(method, args, kwargs, client):
if len(args) > 0:
raise JSONRPCInvalidParamsError("No positional arguments allowed")
try:
return method(client, **kwargs)
except ValidationError as e:
raise JSONRPCInvalidParamsError("Invalid params:" + str(e.messages))
except Exception as e:
raise Exception("Internal server error: " + str(e))
def new_f(*args, **kwargs):
try:
inspect.getcallargs(f, *args, **kwargs)
except TypeError:
raise JSONRPCInvalidParamsError()
else:
return f(*args, **kwargs)
def newFilter(self, filter_dict):
if not isinstance(filter_dict, dict):
raise BadRequestError('Filter must be an object')
required_keys = set(['fromBlock', 'toBlock'])
if not required_keys.issubset(set(filter_dict.keys())):
raise BadRequestError('Invalid filter object')
b0 = self.json_rpc_server.get_block(block_id_decoder(filter_dict['fromBlock']))
b1 = self.json_rpc_server.get_block(block_id_decoder(filter_dict['toBlock']))
if b1.number < b0.number:
raise BadRequestError('fromBlock must be prior or equal to toBlock')
address = filter_dict.get('address', None)
if is_string(address):
addresses = [address_decoder(address)]
elif isinstance(address, Iterable):
addresses = [address_decoder(addr) for addr in address]
elif address is None:
addresses = None
else:
raise JSONRPCInvalidParamsError('Parameter must be address or list of addresses')
topics = [data_decoder(topic) for topic in filter_dict.get('topics', [])]
blocks = [b1]
while blocks[-1] != b1:
blocks.append(blocks[-1].get_parent())
filter_ = Filter(self.chain.chain, reversed(blocks), addresses, topics)
self.filters[self.next_id] = filter_
self.next_id += 1
return self.next_id - 1
def newBlockFilter(self, s):
if s not in ('latest', 'pending'):
raise JSONRPCInvalidParamsError('Parameter must be either "latest" or "pending"')
pending = (s == 'pending')
latest = (s == 'latest')
filter_ = Filter(self.chain.chain, pending=pending, latest=latest)
self.filters[self.next_id] = filter_
self.next_id += 1
return self.next_id - 1
def newFilter(self, filter_dict):
if not isinstance(filter_dict, dict):
raise BadRequestError('Filter must be an object')
b0 = self.json_rpc_server.get_block(
block_id_decoder(filter_dict.get('fromBlock', 'latest')))
b1 = self.json_rpc_server.get_block(
block_id_decoder(filter_dict.get('toBlock', 'latest')))
if b1.number < b0.number:
raise BadRequestError(
'fromBlock must be prior or equal to toBlock')
address = filter_dict.get('address', None)
if is_string(address):
addresses = [address_decoder(address)]
elif isinstance(address, Iterable):
addresses = [address_decoder(addr) for addr in address]
elif address is None:
addresses = None
else:
raise JSONRPCInvalidParamsError(
'Parameter must be address or list of addresses')
if 'topics' in filter_dict:
topics = []
for topic in filter_dict['topics']:
if topic is not None:
topics.append(big_endian_to_int(data_decoder(topic)))
else:
topics.append(None)
else:
topics = None
blocks = [b1]
while blocks[-1] != b0:
blocks.append(blocks[-1].get_parent())
filter_ = Filter(self.chain.chain, reversed(blocks), addresses, topics)
self.filters[self.next_id] = filter_
self.next_id += 1
return self.next_id - 1