async def init_async(cls): self = cls() self.config = get_config() self.mongo = self.config.mongo self.app_log = getLogger("tornado.application") self.target_block_time = CHAIN.target_block_time(self.config.network) self.max_target = CHAIN.MAX_TARGET self.inbound = {} self.connected_ips = {} self.last_block_time = 0 self.index = 0 last_block = await self.config.BU.get_latest_block() if last_block: self.last_block_time = int(last_block['time']) self.index = last_block['index'] self.last_refresh = 0 self.block_factory = None await self.refresh() return self
async def test_block(self, block, extra_blocks=[], simulate_last_block=None): try: block.verify() except Exception as e: self.config.app_log.warning( "Integrate block error 1: {}".format(e)) return False async def get_txns(txns): for x in txns: yield x async def get_inputs(inputs): for x in inputs: yield x if block.index == 0: return True if simulate_last_block: last_block = simulate_last_block else: last_block_data = await self.config.mongo.async_db.blocks.find_one( {'index': block.index - 1}) if last_block_data: last_block = await Block.from_dict(last_block_data) else: return False if block.index >= CHAIN.FORK_10_MIN_BLOCK: target = await CHAIN.get_target_10min(block.index, last_block, block, extra_blocks) else: target = await CHAIN.get_target(block.index, last_block, block, extra_blocks) delta_t = int(time()) - int(last_block.time) special_target = CHAIN.special_target(block.index, block.target, delta_t, get_config().network) if block.index >= 35200 and delta_t < 600 and block.special_min: return False used_inputs = {} i = 0 async for transaction in get_txns(block.transactions): if extra_blocks: transaction.extra_blocks = extra_blocks self.config.app_log.warning('verifying txn: {} block: {}'.format( i, block.index)) i += 1 try: await transaction.verify() except InvalidTransactionException as e: self.config.app_log.warning(e) return False except InvalidTransactionSignatureException as e: self.config.app_log.warning(e) return False except MissingInputTransactionException as e: self.config.app_log.warning(e) return False except NotEnoughMoneyException as e: self.config.app_log.warning(e) return False except Exception as e: self.config.app_log.warning(e) return False if transaction.inputs: failed = False used_ids_in_this_txn = [] async for x in get_inputs(transaction.inputs): txn = self.config.BU.get_transaction_by_id(x.id, instance=True) if not txn: txn = await transaction.find_in_extra_blocks(x) if not txn: failed = True if self.config.BU.is_input_spent(x.id, transaction.public_key, from_index=block.index): failed = True if x.id in used_ids_in_this_txn: failed = True if (x.id, transaction.public_key) in used_inputs: failed = True used_inputs[(x.id, transaction.public_key)] = transaction used_ids_in_this_txn.append(x.id) if failed and block.index >= CHAIN.CHECK_DOUBLE_SPEND_FROM: return False elif failed and block.index < CHAIN.CHECK_DOUBLE_SPEND_FROM: continue if block.index >= 35200 and delta_t < 600 and block.special_min: self.config.app_log.warning( f'Failed: {block.index} >= {35200} and {delta_t} < {600} and {block.special_min}' ) return False if int(block.index) > CHAIN.CHECK_TIME_FROM and int(block.time) < int( last_block.time): self.config.app_log.warning( f'Failed: {int(block.index)} > {CHAIN.CHECK_TIME_FROM} and {int(block.time)} < {int(last_block.time)}' ) return False if last_block.index != (block.index - 1) or last_block.hash != block.prev_hash: self.config.app_log.warning( f'Failed: {last_block.index} != {(block.index - 1)} or {last_block.hash} != {block.prev_hash}' ) return False if int(block.index) > CHAIN.CHECK_TIME_FROM and ( int(block.time) < (int(last_block.time) + 600)) and block.special_min: self.config.app_log.warning( f'Failed: {int(block.index)} > {CHAIN.CHECK_TIME_FROM} and ({int(block.time)} < ({int(last_block.time)} + {600})) and {block.special_min}' ) return False target_block_time = CHAIN.target_block_time(self.config.network) checks_passed = False if (block.index >= CHAIN.BLOCK_V5_FORK) and int( block.little_hash(), 16) < target: self.config.app_log.warning('5') checks_passed = True elif (int(block.hash, 16) < target): self.config.app_log.warning('6') checks_passed = True elif (block.special_min and int(block.hash, 16) < special_target): self.config.app_log.warning('7') checks_passed = True elif (block.special_min and block.index < 35200): self.config.app_log.warning('8') checks_passed = True elif (block.index >= 35200 and block.index < 38600 and block.special_min and (int(block.time) - int(last_block.time)) > target_block_time): self.config.app_log.warning('9') checks_passed = True else: self.config.app_log.warning( "Integrate block error - index and time error") if not checks_passed: return False return True
async def test_block(self, block): try: block.verify() except Exception as e: self.config.app_log.warning("Integrate block error 1: {}".format(e)) return False async def get_txns(txns): for x in txns: yield x async def get_inputs(inputs): for x in inputs: yield x if block.index == 0: return True last_block = await Block.from_dict(await self.config.mongo.async_db.blocks.find_one({'index': block.index - 1})) if block.index >= CHAIN.FORK_10_MIN_BLOCK: target = await CHAIN.get_target_10min(block.index, last_block, block) else: target = await CHAIN.get_target(block.index, last_block, block) delta_t = int(time()) - int(last_block.time) special_target = CHAIN.special_target(block.index, block.target, delta_t, get_config().network) if block.index >= 35200 and delta_t < 600 and block.special_min: return False used_inputs = {} i = 0 async for transaction in get_txns(block.transactions): self.config.app_log.warning('verifying txn: {} block: {}'.format(i, block.index)) i += 1 try: await transaction.verify() except InvalidTransactionException as e: self.config.app_log.warning(e) return False except InvalidTransactionSignatureException as e: self.config.app_log.warning(e) return False except MissingInputTransactionException as e: self.config.app_log.warning(e) except NotEnoughMoneyException as e: self.config.app_log.warning(e) return False except Exception as e: self.config.app_log.warning(e) return False if transaction.inputs: failed = False used_ids_in_this_txn = [] async for x in get_inputs(transaction.inputs): if self.config.BU.is_input_spent(x.id, transaction.public_key, from_index=block.index): failed = True if x.id in used_ids_in_this_txn: failed = True if (x.id, transaction.public_key) in used_inputs: failed = True used_inputs[(x.id, transaction.public_key)] = transaction used_ids_in_this_txn.append(x.id) if failed and block.index >= CHAIN.CHECK_DOUBLE_SPEND_FROM: return False elif failed and block.index < CHAIN.CHECK_DOUBLE_SPEND_FROM: continue if block.index >= 35200 and delta_t < 600 and block.special_min: self.config.app_log.warning('1') return False if int(block.index) > CHAIN.CHECK_TIME_FROM and int(block.time) < int(last_block.time): self.config.app_log.warning('2') return False if last_block.index != (block.index - 1) or last_block.hash != block.prev_hash: self.config.app_log.warning('3') return False if int(block.index) > CHAIN.CHECK_TIME_FROM and (int(block.time) < (int(last_block.time) + 600)) and block.special_min: self.config.app_log.warning('4') return False if block.index >= 35200 and delta_t < 600 and block.special_min: self.config.app_log.warning('5') return False target_block_time = CHAIN.target_block_time(self.config.network) checks_passed = False if (int(block.hash, 16) < target): self.config.app_log.warning('6') checks_passed = True elif (block.special_min and int(block.hash, 16) < special_target): self.config.app_log.warning('7') checks_passed = True elif (block.special_min and block.index < 35200): self.config.app_log.warning('8') checks_passed = True elif (block.index >= 35200 and block.index < 38600 and block.special_min and (int(block.time) - int(last_block.time)) > target_block_time): self.config.app_log.warning('9') checks_passed = True else: self.config.app_log.warning("Integrate block error - index and time error") if not checks_passed: return False return True