← Back
Editing: scope.py
from copy import copy from collections import deque from itertools import chain import os import uuid from sentry_sdk.attachments import Attachment from sentry_sdk._functools import wraps from sentry_sdk.tracing_utils import ( Baggage, extract_sentrytrace_data, has_tracing_enabled, normalize_incoming_data, ) from sentry_sdk.tracing import ( BAGGAGE_HEADER_NAME, SENTRY_TRACE_HEADER_NAME, Transaction, ) from sentry_sdk._types import TYPE_CHECKING from sentry_sdk.utils import logger, capture_internal_exceptions from sentry_sdk.consts import FALSE_VALUES if TYPE_CHECKING: from typing import Any from typing import Dict from typing import Iterator from typing import Optional from typing import Deque from typing import List from typing import Callable from typing import Tuple from typing import TypeVar from sentry_sdk._types import ( Breadcrumb, Event, EventProcessor, ErrorProcessor, ExcInfo, Hint, Type, ) from sentry_sdk.profiler import Profile from sentry_sdk.tracing import Span from sentry_sdk.session 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", "_transaction_info", "_user", "_tags", "_contexts", "_extras", "_breadcrumbs", "_event_processors", "_error_processors", "_should_capture", "_span", "_session", "_attachments", "_force_auto_session_tracking", "_profile", "_propagation_context", ) def __init__(self): # type: () -> None self._event_processors = [] # type: List[EventProcessor] self._error_processors = [] # type: List[ErrorProcessor] self._name = None # type: Optional[str] self._propagation_context = None # type: Optional[Dict[str, Any]] self.clear() incoming_trace_information = self._load_trace_data_from_env() self.generate_propagation_context(incoming_data=incoming_trace_information) def _load_trace_data_from_env(self): # type: () -> Optional[Dict[str, str]] """ Load Sentry trace id and baggage from environment variables. Can be disabled by setting SENTRY_USE_ENVIRONMENT to "false". """ incoming_trace_information = None sentry_use_environment = ( os.environ.get("SENTRY_USE_ENVIRONMENT") or "" ).lower() use_environment = sentry_use_environment not in FALSE_VALUES if use_environment: incoming_trace_information = {} if os.environ.get("SENTRY_TRACE"): incoming_trace_information[SENTRY_TRACE_HEADER_NAME] = ( os.environ.get("SENTRY_TRACE") or "" ) if os.environ.get("SENTRY_BAGGAGE"): incoming_trace_information[BAGGAGE_HEADER_NAME] = ( os.environ.get("SENTRY_BAGGAGE") or "" ) return incoming_trace_information or None def _extract_propagation_context(self, data): # type: (Dict[str, Any]) -> Optional[Dict[str, Any]] context = {} # type: Dict[str, Any] normalized_data = normalize_incoming_data(data) baggage_header = normalized_data.get(BAGGAGE_HEADER_NAME) if baggage_header: context["dynamic_sampling_context"] = Baggage.from_incoming_header( baggage_header ).dynamic_sampling_context() sentry_trace_header = normalized_data.get(SENTRY_TRACE_HEADER_NAME) if sentry_trace_header: sentrytrace_data = extract_sentrytrace_data(sentry_trace_header) if sentrytrace_data is not None: context.update(sentrytrace_data) only_baggage_no_sentry_trace = ( "dynamic_sampling_context" in context and "trace_id" not in context ) if only_baggage_no_sentry_trace: context.update(self._create_new_propagation_context()) if context: if not context.get("span_id"): context["span_id"] = uuid.uuid4().hex[16:] return context return None def _create_new_propagation_context(self): # type: () -> Dict[str, Any] return { "trace_id": uuid.uuid4().hex, "span_id": uuid.uuid4().hex[16:], "parent_span_id": None, "dynamic_sampling_context": None, } def set_new_propagation_context(self): # type: () -> None """ Creates a new propagation context and sets it as `_propagation_context`. Overwriting existing one. """ self._propagation_context = self._create_new_propagation_context() logger.debug( "[Tracing] Create new propagation context: %s", self._propagation_context, ) def generate_propagation_context(self, incoming_data=None): # type: (Optional[Dict[str, str]]) -> None """ Makes sure `_propagation_context` is set. If there is `incoming_data` overwrite existing `_propagation_context`. if there is no `incoming_data` create new `_propagation_context`, but do NOT overwrite if already existing. """ if incoming_data: context = self._extract_propagation_context(incoming_data) if context is not None: self._propagation_context = context logger.debug( "[Tracing] Extracted propagation context from incoming data: %s", self._propagation_context, ) if self._propagation_context is None: self.set_new_propagation_context() def get_dynamic_sampling_context(self): # type: () -> Optional[Dict[str, str]] """ Returns the Dynamic Sampling Context from the Propagation Context. If not existing, creates a new one. """ if self._propagation_context is None: return None baggage = self.get_baggage() if baggage is not None: self._propagation_context[ "dynamic_sampling_context" ] = baggage.dynamic_sampling_context() return self._propagation_context["dynamic_sampling_context"] def get_traceparent(self): # type: () -> Optional[str] """ Returns the Sentry "sentry-trace" header (aka the traceparent) from the Propagation Context. """ if self._propagation_context is None: return None traceparent = "%s-%s" % ( self._propagation_context["trace_id"], self._propagation_context["span_id"], ) return traceparent def get_baggage(self): # type: () -> Optional[Baggage] if self._propagation_context is None: return None dynamic_sampling_context = self._propagation_context.get( "dynamic_sampling_context" ) if dynamic_sampling_context is None: return Baggage.from_options(self) else: return Baggage(dynamic_sampling_context) def get_trace_context(self): # type: () -> Any """ Returns the Sentry "trace" context from the Propagation Context. """ if self._propagation_context is None: return None trace_context = { "trace_id": self._propagation_context["trace_id"], "span_id": self._propagation_context["span_id"], "parent_span_id": self._propagation_context["parent_span_id"], "dynamic_sampling_context": self.get_dynamic_sampling_context(), } # type: Dict[str, Any] return trace_context def iter_headers(self): # type: () -> Iterator[Tuple[str, str]] """ Creates a generator which returns the `sentry-trace` and `baggage` headers from the Propagation Context. """ if self._propagation_context is not None: traceparent = self.get_traceparent() if traceparent is not None: yield SENTRY_TRACE_HEADER_NAME, traceparent dsc = self.get_dynamic_sampling_context() if dsc is not None: baggage = Baggage(dsc).serialize() yield BAGGAGE_HEADER_NAME, baggage 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._transaction_info = {} # type: Dict[str, 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] self._profile = None # type: Optional[Profile] self._propagation_context = None @_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 # there is an orphan span on the scope if self._span.containing_transaction is None: return None # there is either a transaction (which is its own containing # transaction) or a non-orphan span on the scope return self._span.containing_transaction @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. Deprecated: use set_transaction_name instead.""" # 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. logger.warning( "Assigning to scope.transaction directly is deprecated: use scope.set_transaction_name() instead." ) self._transaction = value if self._span and self._span.containing_transaction: self._span.containing_transaction.name = value def set_transaction_name(self, name, source=None): # type: (str, Optional[str]) -> None """Set the transaction name and optionally the transaction source.""" self._transaction = name if self._span and self._span.containing_transaction: self._span.containing_transaction.name = name if source: self._span.containing_transaction.source = source if source: self._transaction_info["source"] = source @_attr_setter def user(self, value): # type: (Optional[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: (Optional[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 @property def profile(self): # type: () -> Optional[Profile] return self._profile @profile.setter def profile(self, profile): # type: (Optional[Profile]) -> None self._profile = profile 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 options=None, # type: Optional[Dict[str, Any]] ): # type: (...) -> Optional[Event] """Applies the information contained on the scope to the given event.""" def _drop(cause, ty): # type: (Any, str) -> Optional[Any] logger.info("%s (%s) dropped event", ty, cause) 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("transaction_info") is None and self._transaction_info is not None: event["transaction_info"] = self._transaction_info 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) contexts = event.setdefault("contexts", {}) if contexts.get("trace") is None: if has_tracing_enabled(options) and self._span is not None: contexts["trace"] = self._span.get_trace_context() else: contexts["trace"] = self.get_trace_context() try: replay_id = contexts["trace"]["dynamic_sampling_context"]["replay_id"] except (KeyError, TypeError): replay_id = None if replay_id is not None: contexts["replay"] = { "replay_id": replay_id, } 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(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_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._transaction_info is not None: self._transaction_info.update(scope._transaction_info) 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) if scope._profile: self._profile = scope._profile if scope._propagation_context: self._propagation_context = scope._propagation_context 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._transaction_info = dict(self._transaction_info) 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._propagation_context = self._propagation_context 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) rv._profile = self._profile return rv def __repr__(self): # type: () -> str return "<%s id=%s name=%s>" % ( self.__class__.__name__, hex(id(self)), self._name, )
Save File
Cancel