import logging
from datetime import datetime, timezone
from fnmatch import fnmatch
import sentry_sdk
from sentry_sdk.utils import (
to_string,
event_from_exception,
current_stacktrace,
capture_internal_exceptions,
)
from sentry_sdk.integrations import Integration
from sentry_sdk._types import TYPE_CHECKING
if TYPE_CHECKING:
from collections.abc import MutableMapping
from logging import LogRecord
from typing import Any
from typing import Dict
from typing import Optional
DEFAULT_LEVEL = logging.INFO
DEFAULT_EVENT_LEVEL = logging.ERROR
LOGGING_TO_EVENT_LEVEL = {
logging.NOTSET: "notset",
logging.DEBUG: "debug",
logging.INFO: "info",
logging.WARN: "warning", # WARN is same a WARNING
logging.WARNING: "warning",
logging.ERROR: "error",
logging.FATAL: "fatal",
logging.CRITICAL: "fatal", # CRITICAL is same as FATAL
}
# Capturing events from those loggers causes recursion errors. We cannot allow
# the user to unconditionally create events from those loggers under any
# circumstances.
#
# Note: Ignoring by logger name here is better than mucking with thread-locals.
# We do not necessarily know whether thread-locals work 100% correctly in the user's environment.
_IGNORED_LOGGERS = set(
["sentry_sdk.errors", "urllib3.connectionpool", "urllib3.connection"]
)
[docs]
def ignore_logger(
name, # type: str
):
# type: (...) -> None
"""This disables recording (both in breadcrumbs and as events) calls to
a logger of a specific name. Among other uses, many of our integrations
use this to prevent their actions being recorded as breadcrumbs. Exposed
to users as a way to quiet spammy loggers.
:param name: The name of the logger to ignore (same string you would pass to ``logging.getLogger``).
"""
_IGNORED_LOGGERS.add(name)
class LoggingIntegration(Integration):
identifier = "logging"
def __init__(self, level=DEFAULT_LEVEL, event_level=DEFAULT_EVENT_LEVEL):
# type: (Optional[int], Optional[int]) -> None
self._handler = None
self._breadcrumb_handler = None
if level is not None:
self._breadcrumb_handler = BreadcrumbHandler(level=level)
if event_level is not None:
self._handler = EventHandler(level=event_level)
def _handle_record(self, record):
# type: (LogRecord) -> None
if self._handler is not None and record.levelno >= self._handler.level:
self._handler.handle(record)
if (
self._breadcrumb_handler is not None
and record.levelno >= self._breadcrumb_handler.level
):
self._breadcrumb_handler.handle(record)
@staticmethod
def setup_once():
# type: () -> None
old_callhandlers = logging.Logger.callHandlers
def sentry_patched_callhandlers(self, record):
# type: (Any, LogRecord) -> Any
# keeping a local reference because the
# global might be discarded on shutdown
ignored_loggers = _IGNORED_LOGGERS
try:
return old_callhandlers(self, record)
finally:
# This check is done twice, once also here before we even get
# the integration. Otherwise we have a high chance of getting
# into a recursion error when the integration is resolved
# (this also is slower).
if ignored_loggers is not None and record.name not in ignored_loggers:
integration = sentry_sdk.get_client().get_integration(
LoggingIntegration
)
if integration is not None:
integration._handle_record(record)
logging.Logger.callHandlers = sentry_patched_callhandlers # type: ignore
class _BaseHandler(logging.Handler, object):
COMMON_RECORD_ATTRS = frozenset(
(
"args",
"created",
"exc_info",
"exc_text",
"filename",
"funcName",
"levelname",
"levelno",
"linenno",
"lineno",
"message",
"module",
"msecs",
"msg",
"name",
"pathname",
"process",
"processName",
"relativeCreated",
"stack",
"tags",
"taskName",
"thread",
"threadName",
"stack_info",
)
)
def _can_record(self, record):
# type: (LogRecord) -> bool
"""Prevents ignored loggers from recording"""
for logger in _IGNORED_LOGGERS:
if fnmatch(record.name, logger):
return False
return True
def _logging_to_event_level(self, record):
# type: (LogRecord) -> str
return LOGGING_TO_EVENT_LEVEL.get(
record.levelno, record.levelname.lower() if record.levelname else ""
)
def _extra_from_record(self, record):
# type: (LogRecord) -> MutableMapping[str, object]
return {
k: v
for k, v in vars(record).items()
if k not in self.COMMON_RECORD_ATTRS
and (not isinstance(k, str) or not k.startswith("_"))
}
[docs]
class EventHandler(_BaseHandler):
"""
A logging handler that emits Sentry events for each log record
Note that you do not have to use this class if the logging integration is enabled, which it is by default.
"""
def emit(self, record):
# type: (LogRecord) -> Any
with capture_internal_exceptions():
self.format(record)
return self._emit(record)
def _emit(self, record):
# type: (LogRecord) -> None
if not self._can_record(record):
return
client = sentry_sdk.get_client()
if not client.is_active():
return
client_options = client.options
# exc_info might be None or (None, None, None)
#
# exc_info may also be any falsy value due to Python stdlib being
# liberal with what it receives and Celery's billiard being "liberal"
# with what it sends. See
# https://github.com/getsentry/sentry-python/issues/904
if record.exc_info and record.exc_info[0] is not None:
event, hint = event_from_exception(
record.exc_info,
client_options=client_options,
mechanism={"type": "logging", "handled": True},
)
elif record.exc_info and record.exc_info[0] is None:
event = {}
hint = {}
with capture_internal_exceptions():
event["threads"] = {
"values": [
{
"stacktrace": current_stacktrace(
include_local_variables=client_options[
"include_local_variables"
],
max_value_length=client_options["max_value_length"],
),
"crashed": False,
"current": True,
}
]
}
else:
event = {}
hint = {}
hint["log_record"] = record
level = self._logging_to_event_level(record)
if level in {"debug", "info", "warning", "error", "critical", "fatal"}:
event["level"] = level # type: ignore[typeddict-item]
event["logger"] = record.name
# Log records from `warnings` module as separate issues
record_caputured_from_warnings_module = (
record.name == "py.warnings" and record.msg == "%s"
)
if record_caputured_from_warnings_module:
# use the actual message and not "%s" as the message
# this prevents grouping all warnings under one "%s" issue
msg = record.args[0] # type: ignore
event["logentry"] = {
"message": msg,
"params": (),
}
else:
event["logentry"] = {
"message": to_string(record.msg),
"params": record.args,
}
event["extra"] = self._extra_from_record(record)
sentry_sdk.capture_event(event, hint=hint)
# Legacy name
SentryHandler = EventHandler
[docs]
class BreadcrumbHandler(_BaseHandler):
"""
A logging handler that records breadcrumbs for each log record.
Note that you do not have to use this class if the logging integration is enabled, which it is by default.
"""
def emit(self, record):
# type: (LogRecord) -> Any
with capture_internal_exceptions():
self.format(record)
return self._emit(record)
def _emit(self, record):
# type: (LogRecord) -> None
if not self._can_record(record):
return
sentry_sdk.add_breadcrumb(
self._breadcrumb_from_record(record), hint={"log_record": record}
)
def _breadcrumb_from_record(self, record):
# type: (LogRecord) -> Dict[str, Any]
return {
"type": "log",
"level": self._logging_to_event_level(record),
"category": record.name,
"message": record.message,
"timestamp": datetime.fromtimestamp(record.created, timezone.utc),
"data": self._extra_from_record(record),
}