async def get_shh_messages(
self, identifier: int) -> Union[List[eth_models.Message], bool]:
"""Get all messages matching a filter. Unlike shh_getFilterChanges
this returns all messages.
Calls shh_getMessages.
:param identifier: The filter id.
:returns
List[eth_models.Messages]: Array of messages received.
bool: False if no messages.
"""
result = await self.rpc(
eth_models.JSONRPCRequest(
method=self.rpc_schema.get_shh_messages[0],
id=self.rpc_schema.get_shh_messages[1],
params=[conversions.to_hex(identifier)],
))
truthiness = eth_utils.result_truthiness(result)
if isinstance(truthiness, bool):
return truthiness
return eth_models.iterate_list(eth_models.Message, result)
def sign_send_tx(self, from_account, tx_dict):
tx_dict["nonce"] = from_account.nonce
signed_tx = self.w3.eth.account.signTransaction(tx_dict, from_account.private_key)
try:
try:
tx_hash = to_hex(self.w3.eth.sendRawTransaction(signed_tx.rawTransaction))
except ValueError as e:
log(f"tx failed. trying with 0.2 more gwei({e})")
tx_dict["gasPrice"] += 200000000
signed_tx = self.w3.eth.account.signTransaction(tx_dict, from_account.private_key)
tx_hash = to_hex(self.w3.eth.sendRawTransaction(signed_tx.rawTransaction))
from_account.nonce += 1
return tx_hash
except Timeout as e:
log(f"ipc timeout ({e}). ignoring.")
from_account.nonce += 1
return to_hex(signed_tx.hash)
async def shh_uninstall_filter(self, identifier: int) -> bool:
"""Uninstalls a filter with given id. Should always be called when
watch is no longer needed. Additionally, filters timeout when they
are not requested with shh_getFilterChanges for a period of time.
Calls shh_uninstallFilter.
:params id: The filter id.
:returns
bool: True if the filter was successfully uninstalled,
otherwise false.
"""
return await self.rpc(
eth_models.JSONRPCRequest(
method=self.rpc_schema.shh_uninstall_filter[0],
id=self.rpc_schema.shh_uninstall_filter[1],
params=[conversions.to_hex(identifier)],
))
async def get_shh_filter_changes(
self, identifier: int) -> List[eth_models.Message]:
"""Polling method for whisper filters. Returns new messages since the
last call of this method.
Note: Calling the shh_getMessages method, will reset the buffer for
this method, so that you won’t receive duplicate messages.
Calls shh_getFilterChanges.
:param identifier: The filter id.
:returns
List[eth_models.Messages]: Array of messages received since last poll.
"""
result = await self.rpc(
eth_models.JSONRPCRequest(
method=self.rpc_schema.get_shh_filter_changes[0],
id=self.rpc_schema.get_shh_filter_changes[1],
params=[conversions.to_hex(identifier)],
))
return eth_models.iterate_list(eth_models.Message, result)
def force_bytes_to_address(value: bytes):
trimmed_value = value[-20:]
padded_value = trimmed_value.rjust(20, b'\x00')
return to_hex(padded_value)
def default(self, o):
if isinstance(o, bytes):
return to_hex(o)
else:
return super(BytesJSONEncoder, self).default(o)
def private_key(self):
return to_hex(self.w3account.privateKey)