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sentry_sdk
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integrations
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import sentry_sdk from sentry_sdk.integrations import DidNotEnable, Integration from sentry_sdk.integrations._wsgi_common import ( DEFAULT_HTTP_METHODS_TO_CAPTURE, RequestExtractor, ) from sentry_sdk.integrations.wsgi import SentryWsgiMiddleware from sentry_sdk.scope import should_send_default_pii from sentry_sdk.tracing import SOURCE_FOR_STYLE from sentry_sdk.utils import ( capture_internal_exceptions, ensure_integration_enabled, event_from_exception, package_version, ) from typing import TYPE_CHECKING if TYPE_CHECKING: from typing import Any, Callable, Dict, Union from sentry_sdk._types import Event, EventProcessor from sentry_sdk.integrations.wsgi import _ScopedResponse from werkzeug.datastructures import FileStorage, ImmutableMultiDict try: import flask_login # type: ignore except ImportError: flask_login = None try: from flask import Flask, Request # type: ignore from flask import request as flask_request from flask.signals import ( before_render_template, got_request_exception, request_started, ) from markupsafe import Markup except ImportError: raise DidNotEnable("Flask is not installed") try: import blinker # noqa except ImportError: raise DidNotEnable("blinker is not installed") TRANSACTION_STYLE_VALUES = ("endpoint", "url") class FlaskIntegration(Integration): identifier = "flask" origin = f"auto.http.{identifier}" transaction_style = "" def __init__( self, transaction_style="endpoint", # type: str http_methods_to_capture=DEFAULT_HTTP_METHODS_TO_CAPTURE, # type: tuple[str, ...] ): # type: (...) -> None if transaction_style not in TRANSACTION_STYLE_VALUES: raise ValueError( "Invalid value for transaction_style: %s (must be in %s)" % (transaction_style, TRANSACTION_STYLE_VALUES) ) self.transaction_style = transaction_style self.http_methods_to_capture = tuple(map(str.upper, http_methods_to_capture)) @staticmethod def setup_once(): # type: () -> None version = package_version("flask") if version is None: raise DidNotEnable("Unparsable Flask version.") if version < (0, 10): raise DidNotEnable("Flask 0.10 or newer is required.") before_render_template.connect(_add_sentry_trace) request_started.connect(_request_started) got_request_exception.connect(_capture_exception) old_app = Flask.__call__ def sentry_patched_wsgi_app(self, environ, start_response): # type: (Any, Dict[str, str], Callable[..., Any]) -> _ScopedResponse if sentry_sdk.get_client().get_integration(FlaskIntegration) is None: return old_app(self, environ, start_response) integration = sentry_sdk.get_client().get_integration(FlaskIntegration) middleware = SentryWsgiMiddleware( lambda *a, **kw: old_app(self, *a, **kw), span_origin=FlaskIntegration.origin, http_methods_to_capture=( integration.http_methods_to_capture if integration else DEFAULT_HTTP_METHODS_TO_CAPTURE ), ) return middleware(environ, start_response) Flask.__call__ = sentry_patched_wsgi_app def _add_sentry_trace(sender, template, context, **extra): # type: (Flask, Any, Dict[str, Any], **Any) -> None if "sentry_trace" in context: return scope = sentry_sdk.get_current_scope() trace_meta = Markup(scope.trace_propagation_meta()) context["sentry_trace"] = trace_meta # for backwards compatibility context["sentry_trace_meta"] = trace_meta def _set_transaction_name_and_source(scope, transaction_style, request): # type: (sentry_sdk.Scope, str, Request) -> None try: name_for_style = { "url": request.url_rule.rule, "endpoint": request.url_rule.endpoint, } scope.set_transaction_name( name_for_style[transaction_style], source=SOURCE_FOR_STYLE[transaction_style], ) except Exception: pass def _request_started(app, **kwargs): # type: (Flask, **Any) -> None integration = sentry_sdk.get_client().get_integration(FlaskIntegration) if integration is None: return request = flask_request._get_current_object() # Set the transaction name and source here, # but rely on WSGI middleware to actually start the transaction _set_transaction_name_and_source( sentry_sdk.get_current_scope(), integration.transaction_style, request ) scope = sentry_sdk.get_isolation_scope() evt_processor = _make_request_event_processor(app, request, integration) scope.add_event_processor(evt_processor) class FlaskRequestExtractor(RequestExtractor): def env(self): # type: () -> Dict[str, str] return self.request.environ def cookies(self): # type: () -> Dict[Any, Any] return { k: v[0] if isinstance(v, list) and len(v) == 1 else v for k, v in self.request.cookies.items() } def raw_data(self): # type: () -> bytes return self.request.get_data() def form(self): # type: () -> ImmutableMultiDict[str, Any] return self.request.form def files(self): # type: () -> ImmutableMultiDict[str, Any] return self.request.files def is_json(self): # type: () -> bool return self.request.is_json def json(self): # type: () -> Any return self.request.get_json(silent=True) def size_of_file(self, file): # type: (FileStorage) -> int return file.content_length def _make_request_event_processor(app, request, integration): # type: (Flask, Callable[[], Request], FlaskIntegration) -> EventProcessor def inner(event, hint): # type: (Event, dict[str, Any]) -> Event # if the request is gone we are fine not logging the data from # it. This might happen if the processor is pushed away to # another thread. if request is None: return event with capture_internal_exceptions(): FlaskRequestExtractor(request).extract_into_event(event) if should_send_default_pii(): with capture_internal_exceptions(): _add_user_to_event(event) return event return inner @ensure_integration_enabled(FlaskIntegration) def _capture_exception(sender, exception, **kwargs): # type: (Flask, Union[ValueError, BaseException], **Any) -> None event, hint = event_from_exception( exception, client_options=sentry_sdk.get_client().options, mechanism={"type": "flask", "handled": False}, ) sentry_sdk.capture_event(event, hint=hint) def _add_user_to_event(event): # type: (Event) -> None if flask_login is None: return user = flask_login.current_user if user is None: return with capture_internal_exceptions(): # Access this object as late as possible as accessing the user # is relatively costly user_info = event.setdefault("user", {}) try: user_info.setdefault("id", user.get_id()) # TODO: more configurable user attrs here except AttributeError: # might happen if: # - flask_login could not be imported # - flask_login is not configured # - no user is logged in pass # The following attribute accesses are ineffective for the general # Flask-Login case, because the User interface of Flask-Login does not # care about anything but the ID. However, Flask-User (based on # Flask-Login) documents a few optional extra attributes. # # https://github.com/lingthio/Flask-User/blob/a379fa0a281789618c484b459cb41236779b95b1/docs/source/data_models.rst#fixed-data-model-property-names try: user_info.setdefault("email", user.email) except Exception: pass try: user_info.setdefault("username", user.username) except Exception: pass
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