def _check_command_response(response, reset, msg=None, allowable_errors=None):
"""Check the response to a command for errors.
"""
if "ok" not in response:
# Server didn't recognize our message as a command.
raise OperationFailure(response.get("$err"), response.get("code"),
response)
if response.get("wtimeout", False):
# MongoDB versions before 1.8.0 return the error message in an "errmsg"
# field. If "errmsg" exists "err" will also exist set to None, so we
# have to check for "errmsg" first.
raise WTimeoutError(response.get("errmsg", response.get("err")),
response.get("code"), response)
if not response["ok"]:
details = response
# Mongos returns the error details in a 'raw' object
# for some errors.
if "raw" in response:
for shard in response["raw"].itervalues():
if not shard.get("ok"):
# Just grab the first error...
details = shard
break
errmsg = details["errmsg"]
if allowable_errors is None or errmsg not in allowable_errors:
# Server is "not master" or "recovering"
if (errmsg.startswith("not master")
or errmsg.startswith("node is recovering")):
if reset is not None:
reset()
raise AutoReconnect(errmsg)
# Server assertion failures
if errmsg == "db assertion failure":
errmsg = ("db assertion failure, assertion: '%s'" %
details.get("assertion", ""))
raise OperationFailure(errmsg, details.get("assertionCode"),
response)
# Other errors
code = details.get("code")
# findAndModify with upsert can raise duplicate key error
if code in (11000, 11001, 12582):
raise DuplicateKeyError(errmsg, code, response)
elif code == 50:
raise ExecutionTimeout(errmsg, code, response)
# wtimeout from write commands
if "errInfo" in details and details["errInfo"].get("wtimeout"):
raise WTimeoutError(errmsg, code, response)
msg = msg or "%s"
raise OperationFailure(msg % errmsg, code, response)
def _raise_write_concern_error(error):
if "errInfo" in error and error["errInfo"].get('wtimeout'):
# Make sure we raise WTimeoutError
raise WTimeoutError(
error.get("errmsg"), error.get("code"), error)
raise WriteConcernError(
error.get("errmsg"), error.get("code"), error)
def _check_gle_response(result):
"""Return getlasterror response as a dict, or raise OperationFailure."""
# Did getlasterror itself fail?
_check_command_response(result)
if result.get("wtimeout", False):
# MongoDB versions before 1.8.0 return the error message in an "errmsg"
# field. If "errmsg" exists "err" will also exist set to None, so we
# have to check for "errmsg" first.
raise WTimeoutError(result.get("errmsg", result.get("err")),
result.get("code"),
result)
error_msg = result.get("err", "")
if error_msg is None:
return result
if error_msg.startswith("not master"):
raise NotMasterError(error_msg, result)
details = result
# mongos returns the error code in an error object for some errors.
if "errObjects" in result:
for errobj in result["errObjects"]:
if errobj.get("err") == error_msg:
details = errobj
break
code = details.get("code")
if code in (11000, 11001, 12582):
raise DuplicateKeyError(details["err"], code, result)
raise OperationFailure(details["err"], code, result)
def _check_write_command_response(results):
"""Backward compatibility helper for write command error handling.
"""
errors = [
res for res in results
if "writeErrors" in res[1] or "writeConcernError" in res[1]
]
if errors:
# If multiple batches had errors
# raise from the last batch.
offset, result = errors[-1]
# Prefer write errors over write concern errors
write_errors = result.get("writeErrors")
if write_errors:
# If the last batch had multiple errors only report
# the last error to emulate continue_on_error.
error = write_errors[-1]
error["index"] += offset
if error.get("code") == 11000:
raise DuplicateKeyError(error.get("errmsg"), 11000, error)
else:
error = result["writeConcernError"]
if "errInfo" in error and error["errInfo"].get('wtimeout'):
# Make sure we raise WTimeoutError
raise WTimeoutError(error.get("errmsg"), error.get("code"),
error)
raise OperationFailure(error.get("errmsg"), error.get("code"), error)
def _check_command_response(response, msg=None, allowable_errors=None):
"""Check the response to a command for errors.
"""
if "ok" not in response:
# Server didn't recognize our message as a command.
raise OperationFailure(response.get("$err"),
response.get("code"),
response)
# TODO: remove, this is moving to _check_gle_response
if response.get("wtimeout", False):
# MongoDB versions before 1.8.0 return the error message in an "errmsg"
# field. If "errmsg" exists "err" will also exist set to None, so we
# have to check for "errmsg" first.
raise WTimeoutError(response.get("errmsg", response.get("err")),
response.get("code"),
response)
if not response["ok"]:
details = response
# Mongos returns the error details in a 'raw' object
# for some errors.
if "raw" in response:
for shard in itervalues(response["raw"]):
# Grab the first non-empty raw error from a shard.
if shard.get("errmsg") and not shard.get("ok"):
details = shard
break
errmsg = details["errmsg"]
if allowable_errors is None or errmsg not in allowable_errors:
# Server is "not master" or "recovering"
if (errmsg.startswith("not master")
or errmsg.startswith("node is recovering")):
raise NotMasterError(errmsg, response)
# Server assertion failures
if errmsg == "db assertion failure":
errmsg = ("db assertion failure, assertion: '%s'" %
details.get("assertion", ""))
raise OperationFailure(errmsg,
details.get("assertionCode"),
response)
# Other errors
code = details.get("code")
# findAndModify with upsert can raise duplicate key error
if code in (11000, 11001, 12582):
raise DuplicateKeyError(errmsg, code, response)
elif code == 50:
raise ExecutionTimeout(errmsg, code, response)
elif code == 43:
raise CursorNotFound(errmsg, code, response)
msg = msg or "%s"
raise OperationFailure(msg % errmsg, code, response)
def _raise_write_concern_error(error: Any) -> NoReturn:
if "errInfo" in error and error["errInfo"].get("wtimeout"):
# Make sure we raise WTimeoutError
raise WTimeoutError(error.get("errmsg"), error.get("code"), error)
raise WriteConcernError(error.get("errmsg"), error.get("code"), error)