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python38
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python3.8
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sentry_sdk
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Filename :
hub.py
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import sys import copy import weakref from datetime import datetime from contextlib import contextmanager from warnings import warn from sentry_sdk._compat import with_metaclass from sentry_sdk.scope import Scope from sentry_sdk.client import Client from sentry_sdk.utils import ( exc_info_from_error, event_from_exception, logger, ContextVar, ) if False: from typing import Union from typing import Any from typing import Optional from typing import Dict from typing import Tuple from typing import List from typing import Callable from typing import overload from contextlib import ContextManager from sentry_sdk.integrations import Integration else: def overload(x): return x _local = ContextVar("sentry_current_hub") _initial_client = None def _should_send_default_pii(): # type: () -> bool client = Hub.current.client if not client: return False return client.options["send_default_pii"] class _InitGuard(object): def __init__(self, client): self._client = client def __enter__(self): return self def __exit__(self, exc_type, exc_value, tb): c = self._client if c is not None: c.close() def init(*args, **kwargs): """Initializes the SDK and optionally integrations. This takes the same arguments as the client constructor. """ global _initial_client client = Client(*args, **kwargs) Hub.current.bind_client(client) rv = _InitGuard(client) if client is not None: _initial_client = weakref.ref(client) return rv class HubMeta(type): @property def current(self): # type: () -> Hub """Returns the current instance of the hub.""" rv = _local.get(None) if rv is None: rv = Hub(GLOBAL_HUB) _local.set(rv) return rv @property def main(self): """Returns the main instance of the hub.""" return GLOBAL_HUB class _HubManager(object): def __init__(self, hub): self._old = Hub.current _local.set(hub) def __exit__(self, exc_type, exc_value, tb): _local.set(self._old) class _ScopeManager(object): def __init__(self, hub): self._hub = hub self._original_len = len(hub._stack) self._layer = hub._stack[-1] def __enter__(self): # type: () -> Scope scope = self._layer[1] assert scope is not None return scope def __exit__(self, exc_type, exc_value, tb): current_len = len(self._hub._stack) if current_len < self._original_len: logger.error( "Scope popped too soon. Popped %s scopes too many.", self._original_len - current_len, ) return elif current_len > self._original_len: logger.warning( "Leaked %s scopes: %s", current_len - self._original_len, self._hub._stack[self._original_len :], ) layer = self._hub._stack[self._original_len - 1] del self._hub._stack[self._original_len - 1 :] if layer[1] != self._layer[1]: logger.error( "Wrong scope found. Meant to pop %s, but popped %s.", layer[1], self._layer[1], ) elif layer[0] != self._layer[0]: warning = ( "init() called inside of pushed scope. This might be entirely " "legitimate but usually occurs when initializing the SDK inside " "a request handler or task/job function. Try to initialize the " "SDK as early as possible instead." ) logger.warning(warning) class Hub(with_metaclass(HubMeta)): # type: ignore """The hub wraps the concurrency management of the SDK. Each thread has its own hub but the hub might transfer with the flow of execution if context vars are available. If the hub is used with a with statement it's temporarily activated. """ _stack = None # type: List[Tuple[Optional[Client], Scope]] def __init__(self, client_or_hub=None, scope=None): # type: (Union[Hub, Client], Optional[Any]) -> None if isinstance(client_or_hub, Hub): hub = client_or_hub client, other_scope = hub._stack[-1] if scope is None: scope = copy.copy(other_scope) else: client = client_or_hub if scope is None: scope = Scope() self._stack = [(client, scope)] self._last_event_id = None # type: Optional[str] self._old_hubs = [] # type: List[Hub] def __enter__(self): # type: () -> Hub self._old_hubs.append(Hub.current) _local.set(self) return self def __exit__( self, exc_type, # type: Optional[type] exc_value, # type: Optional[BaseException] tb, # type: Optional[Any] ): # type: (...) -> None old = self._old_hubs.pop() _local.set(old) def run(self, callback): """Runs a callback in the context of the hub. Alternatively the with statement can be used on the hub directly. """ with self: return callback() def get_integration(self, name_or_class): # type: (Union[str, Integration]) -> Any """Returns the integration for this hub by name or class. If there is no client bound or the client does not have that integration then `None` is returned. If the return value is not `None` the hub is guaranteed to have a client attached. """ if isinstance(name_or_class, str): integration_name = name_or_class elif name_or_class.identifier is not None: integration_name = name_or_class.identifier else: raise ValueError("Integration has no name") client = self._stack[-1][0] if client is not None: rv = client.integrations.get(integration_name) if rv is not None: return rv initial_client = _initial_client if initial_client is not None: initial_client = initial_client() if ( initial_client is not None and initial_client is not client and initial_client.integrations.get(name_or_class) is not None ): warning = ( "Integration %r attempted to run but it was only " "enabled on init() but not the client that " "was bound to the current flow. Earlier versions of " "the SDK would consider these integrations enabled but " "this is no longer the case." % (name_or_class,) ) warn(Warning(warning), stacklevel=3) logger.warning(warning) @property def client(self): # type: () -> Optional[Client] """Returns the current client on the hub.""" return self._stack[-1][0] def last_event_id(self): # type: () -> Optional[str] """Returns the last event ID.""" return self._last_event_id def bind_client(self, new): """Binds a new client to the hub.""" top = self._stack[-1] self._stack[-1] = (new, top[1]) def capture_event(self, event, hint=None): # type: (Dict[str, Any], Dict[str, Any]) -> Optional[str] """Captures an event. The return value is the ID of the event. The event is a dictionary following the Sentry v7/v8 protocol specification. Optionally an event hint dict can be passed that is used by processors to extract additional information from it. Typically the event hint object would contain exception information. """ client, scope = self._stack[-1] if client is not None: rv = client.capture_event(event, hint, scope) if rv is not None: self._last_event_id = rv return rv return None def capture_message(self, message, level=None): # type: (str, Optional[Any]) -> Optional[str] """Captures a message. The message is just a string. If no level is provided the default level is `info`. """ if self.client is None: return None if level is None: level = "info" return self.capture_event({"message": message, "level": level}) def capture_exception(self, error=None): # type: (Optional[BaseException]) -> Optional[str] """Captures an exception. The argument passed can be `None` in which case the last exception will be reported, otherwise an exception object or an `exc_info` tuple. """ client = self.client if client is None: return None if error is None: exc_info = sys.exc_info() else: exc_info = exc_info_from_error(error) event, hint = event_from_exception(exc_info, client_options=client.options) try: return self.capture_event(event, hint=hint) except Exception: self._capture_internal_exception(sys.exc_info()) return None def _capture_internal_exception(self, exc_info): """Capture an exception that is likely caused by a bug in the SDK itself.""" logger.error("Internal error in sentry_sdk", exc_info=exc_info) def add_breadcrumb(self, crumb=None, hint=None, **kwargs): # type: (Dict[str, Any], Dict[str, Any], **Any) -> None """Adds a breadcrumb. The breadcrumbs are a dictionary with the data as the sentry v7/v8 protocol expects. `hint` is an optional value that can be used by `before_breadcrumb` to customize the breadcrumbs that are emitted. """ client, scope = self._stack[-1] if client is None: logger.info("Dropped breadcrumb because no client bound") return crumb = dict(crumb or ()) # type: Dict[str, Any] crumb.update(kwargs) if not crumb: return hint = dict(hint or ()) if crumb.get("timestamp") is None: crumb["timestamp"] = datetime.utcnow() if crumb.get("type") is None: crumb["type"] = "default" original_crumb = crumb if client.options["before_breadcrumb"] is not None: crumb = client.options["before_breadcrumb"](crumb, hint) if crumb is not None: scope._breadcrumbs.append(crumb) else: logger.info("before breadcrumb dropped breadcrumb (%s)", original_crumb) max_breadcrumbs = client.options["max_breadcrumbs"] # type: int while len(scope._breadcrumbs) > max_breadcrumbs: scope._breadcrumbs.popleft() @overload # noqa def push_scope(self): # type: () -> ContextManager[Scope] pass @overload # noqa def push_scope(self, callback): # type: (Callable[[Scope], None]) -> None pass def push_scope(self, callback=None): # noqa """Pushes a new layer on the scope stack. Returns a context manager that should be used to pop the scope again. Alternatively a callback can be provided that is executed in the context of the scope. """ if callback is not None: with self.push_scope() as scope: callback(scope) return None client, scope = self._stack[-1] new_layer = (client, copy.copy(scope)) self._stack.append(new_layer) return _ScopeManager(self) scope = push_scope def pop_scope_unsafe(self): """Pops a scope layer from the stack. Try to use the context manager `push_scope()` instead.""" rv = self._stack.pop() assert self._stack, "stack must have at least one layer" return rv @overload # noqa def configure_scope(self): # type: () -> ContextManager[Scope] pass @overload # noqa def configure_scope(self, callback): # type: (Callable[[Scope], None]) -> None pass def configure_scope(self, callback=None): # noqa """Reconfigures the scope.""" client, scope = self._stack[-1] if callback is not None: if client is not None: callback(scope) return None @contextmanager def inner(): if client is not None: yield scope else: yield Scope() return inner() def flush(self, timeout=None, callback=None): """Alias for self.client.flush""" client, scope = self._stack[-1] if client is not None: return client.flush(timeout=timeout, callback=callback) GLOBAL_HUB = Hub() _local.set(GLOBAL_HUB)