async def run_in_executor(self, query_name, func, kwargs):
start = time.perf_counter()
try:
result = await asyncio.get_running_loop().run_in_executor(
self.session_mgr.query_executor, func, kwargs)
except asyncio.CancelledError:
raise
except reader.SQLiteInterruptedError as error:
metrics = self.get_metrics_or_placeholder_for_api(query_name)
metrics.query_interrupt(start, error.metrics)
raise RPCError(JSONRPC.QUERY_TIMEOUT, 'sqlite query timed out')
except reader.SQLiteOperationalError as error:
metrics = self.get_metrics_or_placeholder_for_api(query_name)
metrics.query_error(start, error.metrics)
raise RPCError(JSONRPC.INTERNAL_ERROR, 'query failed to execute')
except Exception:
log.exception("dear devs, please handle this exception better")
metrics = self.get_metrics_or_placeholder_for_api(query_name)
metrics.query_error(start, {})
raise RPCError(JSONRPC.INTERNAL_ERROR, 'unknown server error')
if self.env.track_metrics:
metrics = self.get_metrics_or_placeholder_for_api(query_name)
(result, metrics_data) = result
metrics.query_response(start, metrics_data)
return base64.b64encode(result).decode()
def assert_claim_id(self, value):
'''Raise an RPCError if the value is not a valid claim id
hash.'''
try:
if len(util.hex_to_bytes(value)) == 20:
return
except Exception:
pass
raise RPCError(1, f'{value} should be a claim id hash')
def assert_tx_hash(self, value):
'''Raise an RPCError if the value is not a valid transaction
hash.'''
try:
if len(util.hex_to_bytes(value)) == 32:
return
except Exception:
pass
raise RPCError(1, f'{value} should be a transaction hash')
async def run_in_executor(self, metrics: APICallMetrics, func, kwargs):
start = time.perf_counter()
try:
result = await asyncio.get_running_loop().run_in_executor(
self.session_mgr.query_executor, func, kwargs)
except reader.SQLiteInterruptedError as error:
metrics.query_interrupt(start, error.metrics)
raise RPCError(JSONRPC.QUERY_TIMEOUT, 'sqlite query timed out')
except reader.SQLiteOperationalError as error:
metrics.query_error(start, error.metrics)
raise RPCError(JSONRPC.INTERNAL_ERROR, 'query failed to execute')
except:
metrics.query_error(start, {})
raise RPCError(JSONRPC.INTERNAL_ERROR, 'unknown server error')
if self.env.track_metrics:
(result, metrics_data) = result
metrics.query_response(start, metrics_data)
return base64.b64encode(result).decode()
async def utxo_get_address(self, tx_hash, index):
# fixme: lbryum
# Used only for electrum client command-line requests. We no
# longer index by address, so need to request the raw
# transaction. So it works for any TXO not just UTXOs.
self.assert_tx_hash(tx_hash)
try:
index = int(index)
if index < 0:
raise ValueError
except ValueError:
raise RPCError(1, "index has to be >= 0 and integer")
raw_tx = await self.daemon_request('getrawtransaction', tx_hash)
if not raw_tx:
return None
raw_tx = util.hex_to_bytes(raw_tx)
tx = self.coin.DESERIALIZER(raw_tx).read_tx()
if index >= len(tx.outputs):
return None
return self.coin.address_from_script(tx.outputs[index].pk_script)
async def wrapper(*args, **kwargs):
try:
return await decorated_function(*args, **kwargs)
except DaemonError as daemon_error:
raise RPCError(1, daemon_error.args[0])