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from copy import copy
from collections import deque
from itertools import chain
from sentry_sdk._functools import wraps
from sentry_sdk._types import MYPY
from sentry_sdk.utils import logger, capture_internal_exceptions
from sentry_sdk.tracing import Transaction
from sentry_sdk.attachments import Attachment
if MYPY:
from typing import Any
from typing import Dict
from typing import Optional
from typing import Deque
from typing import List
from typing import Callable
from typing import TypeVar
from sentry_sdk._types import (
Breadcrumb,
Event,
EventProcessor,
ErrorProcessor,
ExcInfo,
Hint,
Type,
)
from sentry_sdk.tracing import Span
from sentry_sdk.sessions import Session
F = TypeVar("F", bound=Callable[..., Any])
T = TypeVar("T")
global_event_processors = [] # type: List[EventProcessor]
def add_global_event_processor(processor):
# type: (EventProcessor) -> None
global_event_processors.append(processor)
def _attr_setter(fn):
# type: (Any) -> Any
return property(fset=fn, doc=fn.__doc__)
def _disable_capture(fn):
# type: (F) -> F
@wraps(fn)
def wrapper(self, *args, **kwargs):
# type: (Any, *Dict[str, Any], **Any) -> Any
if not self._should_capture:
return
try:
self._should_capture = False
return fn(self, *args, **kwargs)
finally:
self._should_capture = True
return wrapper # type: ignore
class Scope(object):
"""The scope holds extra information that should be sent with all
events that belong to it.
"""
# NOTE: Even though it should not happen, the scope needs to not crash when
# accessed by multiple threads. It's fine if it's full of races, but those
# races should never make the user application crash.
#
# The same needs to hold for any accesses of the scope the SDK makes.
__slots__ = (
"_level",
"_name",
"_fingerprint",
# note that for legacy reasons, _transaction is the transaction *name*,
# not a Transaction object (the object is stored in _span)
"_transaction",
"_user",
"_tags",
"_contexts",
"_extras",
"_breadcrumbs",
"_event_processors",
"_error_processors",
"_should_capture",
"_span",
"_session",
"_attachments",
"_force_auto_session_tracking",
)
def __init__(self):
# type: () -> None
self._event_processors = [] # type: List[EventProcessor]
self._error_processors = [] # type: List[ErrorProcessor]
self._name = None # type: Optional[str]
self.clear()
def clear(self):
# type: () -> None
"""Clears the entire scope."""
self._level = None # type: Optional[str]
self._fingerprint = None # type: Optional[List[str]]
self._transaction = None # type: Optional[str]
self._user = None # type: Optional[Dict[str, Any]]
self._tags = {} # type: Dict[str, Any]
self._contexts = {} # type: Dict[str, Dict[str, Any]]
self._extras = {} # type: Dict[str, Any]
self._attachments = [] # type: List[Attachment]
self.clear_breadcrumbs()
self._should_capture = True
self._span = None # type: Optional[Span]
self._session = None # type: Optional[Session]
self._force_auto_session_tracking = None # type: Optional[bool]
@_attr_setter
def level(self, value):
# type: (Optional[str]) -> None
"""When set this overrides the level. Deprecated in favor of set_level."""
self._level = value
def set_level(self, value):
# type: (Optional[str]) -> None
"""Sets the level for the scope."""
self._level = value
@_attr_setter
def fingerprint(self, value):
# type: (Optional[List[str]]) -> None
"""When set this overrides the default fingerprint."""
self._fingerprint = value
@property
def transaction(self):
# type: () -> Any
# would be type: () -> Optional[Transaction], see https://github.com/python/mypy/issues/3004
"""Return the transaction (root span) in the scope, if any."""
# there is no span/transaction on the scope
if self._span is None:
return None
# the span on the scope is itself a transaction
if isinstance(self._span, Transaction):
return self._span
# the span on the scope isn't a transaction but belongs to one
if self._span._containing_transaction:
return self._span._containing_transaction
# there's a span (not a transaction) on the scope, but it was started on
# its own, not as the descendant of a transaction (this is deprecated
# behavior, but as long as the start_span function exists, it can still
# happen)
return None
@transaction.setter
def transaction(self, value):
# type: (Any) -> None
# would be type: (Optional[str]) -> None, see https://github.com/python/mypy/issues/3004
"""When set this forces a specific transaction name to be set."""
# XXX: the docstring above is misleading. The implementation of
# apply_to_event prefers an existing value of event.transaction over
# anything set in the scope.
# XXX: note that with the introduction of the Scope.transaction getter,
# there is a semantic and type mismatch between getter and setter. The
# getter returns a transaction, the setter sets a transaction name.
# Without breaking version compatibility, we could make the setter set a
# transaction name or transaction (self._span) depending on the type of
# the value argument.
self._transaction = value
span = self._span
if span and isinstance(span, Transaction):
span.name = value
@_attr_setter
def user(self, value):
# type: (Dict[str, Any]) -> None
"""When set a specific user is bound to the scope. Deprecated in favor of set_user."""
self.set_user(value)
def set_user(self, value):
# type: (Dict[str, Any]) -> None
"""Sets a user for the scope."""
self._user = value
if self._session is not None:
self._session.update(user=value)
@property
def span(self):
# type: () -> Optional[Span]
"""Get/set current tracing span or transaction."""
return self._span
@span.setter
def span(self, span):
# type: (Optional[Span]) -> None
self._span = span
# XXX: this differs from the implementation in JS, there Scope.setSpan
# does not set Scope._transactionName.
if isinstance(span, Transaction):
transaction = span
if transaction.name:
self._transaction = transaction.name
def set_tag(
self,
key, # type: str
value, # type: Any
):
# type: (...) -> None
"""Sets a tag for a key to a specific value."""
self._tags[key] = value
def remove_tag(
self, key # type: str
):
# type: (...) -> None
"""Removes a specific tag."""
self._tags.pop(key, None)
def set_context(
self,
key, # type: str
value, # type: Dict[str, Any]
):
# type: (...) -> None
"""Binds a context at a certain key to a specific value."""
self._contexts[key] = value
def remove_context(
self, key # type: str
):
# type: (...) -> None
"""Removes a context."""
self._contexts.pop(key, None)
def set_extra(
self,
key, # type: str
value, # type: Any
):
# type: (...) -> None
"""Sets an extra key to a specific value."""
self._extras[key] = value
def remove_extra(
self, key # type: str
):
# type: (...) -> None
"""Removes a specific extra key."""
self._extras.pop(key, None)
def clear_breadcrumbs(self):
# type: () -> None
"""Clears breadcrumb buffer."""
self._breadcrumbs = deque() # type: Deque[Breadcrumb]
def add_attachment(
self,
bytes=None, # type: Optional[bytes]
filename=None, # type: Optional[str]
path=None, # type: Optional[str]
content_type=None, # type: Optional[str]
add_to_transactions=False, # type: bool
):
# type: (...) -> None
"""Adds an attachment to future events sent."""
self._attachments.append(
Attachment(
bytes=bytes,
path=path,
filename=filename,
content_type=content_type,
add_to_transactions=add_to_transactions,
)
)
def add_event_processor(
self, func # type: EventProcessor
):
# type: (...) -> None
"""Register a scope local event processor on the scope.
:param func: This function behaves like `before_send.`
"""
if len(self._event_processors) > 20:
logger.warning(
"Too many event processors on scope! Clearing list to free up some memory: %r",
self._event_processors,
)
del self._event_processors[:]
self._event_processors.append(func)
def add_error_processor(
self,
func, # type: ErrorProcessor
cls=None, # type: Optional[Type[BaseException]]
):
# type: (...) -> None
"""Register a scope local error processor on the scope.
:param func: A callback that works similar to an event processor but is invoked with the original exception info triple as second argument.
:param cls: Optionally, only process exceptions of this type.
"""
if cls is not None:
cls_ = cls # For mypy.
real_func = func
def func(event, exc_info):
# type: (Event, ExcInfo) -> Optional[Event]
try:
is_inst = isinstance(exc_info[1], cls_)
except Exception:
is_inst = False
if is_inst:
return real_func(event, exc_info)
return event
self._error_processors.append(func)
@_disable_capture
def apply_to_event(
self,
event, # type: Event
hint, # type: Hint
):
# type: (...) -> Optional[Event]
"""Applies the information contained on the scope to the given event."""
def _drop(event, cause, ty):
# type: (Dict[str, Any], Any, str) -> Optional[Any]
logger.info("%s (%s) dropped event (%s)", ty, cause, event)
return None
is_transaction = event.get("type") == "transaction"
# put all attachments into the hint. This lets callbacks play around
# with attachments. We also later pull this out of the hint when we
# create the envelope.
attachments_to_send = hint.get("attachments") or []
for attachment in self._attachments:
if not is_transaction or attachment.add_to_transactions:
attachments_to_send.append(attachment)
hint["attachments"] = attachments_to_send
if self._level is not None:
event["level"] = self._level
if not is_transaction:
event.setdefault("breadcrumbs", {}).setdefault("values", []).extend(
self._breadcrumbs
)
if event.get("user") is None and self._user is not None:
event["user"] = self._user
if event.get("transaction") is None and self._transaction is not None:
event["transaction"] = self._transaction
if event.get("fingerprint") is None and self._fingerprint is not None:
event["fingerprint"] = self._fingerprint
if self._extras:
event.setdefault("extra", {}).update(self._extras)
if self._tags:
event.setdefault("tags", {}).update(self._tags)
if self._contexts:
event.setdefault("contexts", {}).update(self._contexts)
if self._span is not None:
contexts = event.setdefault("contexts", {})
if not contexts.get("trace"):
contexts["trace"] = self._span.get_trace_context()
exc_info = hint.get("exc_info")
if exc_info is not None:
for error_processor in self._error_processors:
new_event = error_processor(event, exc_info)
if new_event is None:
return _drop(event, error_processor, "error processor")
event = new_event
for event_processor in chain(global_event_processors, self._event_processors):
new_event = event
with capture_internal_exceptions():
new_event = event_processor(event, hint)
if new_event is None:
return _drop(event, event_processor, "event processor")
event = new_event
return event
def update_from_scope(self, scope):
# type: (Scope) -> None
if scope._level is not None:
self._level = scope._level
if scope._fingerprint is not None:
self._fingerprint = scope._fingerprint
if scope._transaction is not None:
self._transaction = scope._transaction
if scope._user is not None:
self._user = scope._user
if scope._tags:
self._tags.update(scope._tags)
if scope._contexts:
self._contexts.update(scope._contexts)
if scope._extras:
self._extras.update(scope._extras)
if scope._breadcrumbs:
self._breadcrumbs.extend(scope._breadcrumbs)
if scope._span:
self._span = scope._span
if scope._attachments:
self._attachments.extend(scope._attachments)
def update_from_kwargs(
self,
user=None, # type: Optional[Any]
level=None, # type: Optional[str]
extras=None, # type: Optional[Dict[str, Any]]
contexts=None, # type: Optional[Dict[str, Any]]
tags=None, # type: Optional[Dict[str, str]]
fingerprint=None, # type: Optional[List[str]]
):
# type: (...) -> None
if level is not None:
self._level = level
if user is not None:
self._user = user
if extras is not None:
self._extras.update(extras)
if contexts is not None:
self._contexts.update(contexts)
if tags is not None:
self._tags.update(tags)
if fingerprint is not None:
self._fingerprint = fingerprint
def __copy__(self):
# type: () -> Scope
rv = object.__new__(self.__class__) # type: Scope
rv._level = self._level
rv._name = self._name
rv._fingerprint = self._fingerprint
rv._transaction = self._transaction
rv._user = self._user
rv._tags = dict(self._tags)
rv._contexts = dict(self._contexts)
rv._extras = dict(self._extras)
rv._breadcrumbs = copy(self._breadcrumbs)
rv._event_processors = list(self._event_processors)
rv._error_processors = list(self._error_processors)
rv._should_capture = self._should_capture
rv._span = self._span
rv._session = self._session
rv._force_auto_session_tracking = self._force_auto_session_tracking
rv._attachments = list(self._attachments)
return rv
def __repr__(self):
# type: () -> str
return "<%s id=%s name=%s>" % (
self.__class__.__name__,
hex(id(self)),
self._name,
)