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from copy import copy

from collections import deque

from functools import wraps

from itertools import chain

from sentry_sdk.utils import logger, capture_internal_exceptions

MYPY = False

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.utils import Breadcrumb, Event, EventProcessor, ErrorProcessor, Hint

F = TypeVar("F", bound=Callable[..., Any])

global_event_processors = [] # type: List[EventProcessor]

def add_global_event_processor(processor):

# type: (EventProcessor) -> None

global_event_processors.append(processor)

def _attr_setter(fn):

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.

"""

__slots__ = (

"_level",

"_name",

"_fingerprint",

"_transaction",

"_user",

"_tags",

"_contexts",

"_extras",

"_breadcrumbs",

"_event_processors",

"_error_processors",

"_should_capture",

"_span",

)

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()

@_attr_setter

def level(self, value):

"""When set this overrides the level."""

self._level = value

@_attr_setter

def fingerprint(self, value):

"""When set this overrides the default fingerprint."""

self._fingerprint = value

@_attr_setter

def transaction(self, value):

"""When set this forces a specific transaction name to be set."""

self._transaction = value

@_attr_setter

def user(self, value):

"""When set a specific user is bound to the scope."""

self._user = value

def set_span_context(self, span_context):

"""Sets the span context."""

self._span = span_context

def set_tag(self, key, value):

# type: (str, Any) -> None

"""Sets a tag for a key to a specific value."""

self._tags[key] = value

def remove_tag(self, key):

# type: (str) -> None

"""Removes a specific tag."""

self._tags.pop(key, None)

def set_context(self, key, value):

# type: (str, Any) -> None

"""Binds a context at a certain key to a specific value."""

self._contexts[key] = value

def remove_context(self, key):

# type: (str) -> None

"""Removes a context."""

self._contexts.pop(key, None)

def set_extra(self, key, value):

# type: (str, Any) -> None

"""Sets an extra key to a specific value."""

self._extras[key] = value

def remove_extra(self, key):

# type: (str) -> None

"""Removes a specific extra key."""

self._extras.pop(key, None)

def clear(self):

# type: () -> None

"""Clears the entire scope."""

self._level = None

self._fingerprint = None

self._transaction = None

self._user = None

self._tags = {} # type: Dict[str, Any]

self._contexts = {} # type: Dict[str, Dict[str, Any]]

self._extras = {} # type: Dict[str, Any]

self.clear_breadcrumbs()

self._should_capture = True

self._span = None

def clear_breadcrumbs(self):

# type: () -> None

"""Clears breadcrumb buffer."""

self._breadcrumbs = deque() # type: Deque[Breadcrumb]

def add_event_processor(self, func):

# type: (EventProcessor) -> None

""""Register a scope local event processor on the scope.

This function behaves like `before_send.`

"""

self._event_processors.append(func)

def add_error_processor(self, func, cls=None):

# type: (ErrorProcessor, Optional[type]) -> None

""""Register a scope local error processor on the scope.

The error processor works similar to an event processor but is

invoked with the original exception info triple as second argument.

"""

if cls is not None:

cls_ = cls # For mypy.

real_func = func

def func(event, exc_info):

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, hint):

# type: (Event, Hint) -> 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

if self._level is not None:

event["level"] = self._level

event.setdefault("breadcrumbs", []).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:

event.setdefault("contexts", {})["trace"] = {

"trace_id": self._span.trace_id,

"span_id": self._span.span_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(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 __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

return rv

def __repr__(self):

# type: () -> str

return "<%s id=%s name=%s>" % (

self.__class__.__name__,

hex(id(self)),

self._name,

)

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