Update Flask and Quart integrations (#1520)

Flask and Quart are deprecating and removing the ``_xxx_ctx_stack``s
and adopting a more direct usage of ContextVars. The previous code
will therefore break for the latest version of Quart and start to warn
for Flask and then break.

This fix should work with any version of Flask or Quart, and hence is
a more robust version. There is an extra indirection, however I don't
think this is on any hot path.

Co-authored-by: Anton Pirker <anton.pirker@sentry.io>

Author: pgjones

sentry_sdk/integrations/flask.py

@@ -28,7 +28,7 @@
 try:
     from flask import Flask, Markup, Request  # type: ignore
     from flask import __version__ as FLASK_VERSION
-    from flask import _app_ctx_stack, _request_ctx_stack
+    from flask import request as flask_request
     from flask.signals import (
         before_render_template,
         got_request_exception,
@@ -124,19 +124,17 @@ def _set_transaction_name_and_source(scope, transaction_style, request):
         pass
 
 
-def _request_started(sender, **kwargs):
+def _request_started(app, **kwargs):
     # type: (Flask, **Any) -> None
     hub = Hub.current
     integration = hub.get_integration(FlaskIntegration)
     if integration is None:
         return
 
-    app = _app_ctx_stack.top.app
     with hub.configure_scope() as scope:
-        request = _request_ctx_stack.top.request
-
         # Set the transaction name and source here,
         # but rely on WSGI middleware to actually start the transaction
+        request = flask_request._get_current_object()
         _set_transaction_name_and_source(scope, integration.transaction_style, request)
         evt_processor = _make_request_event_processor(app, request, integration)
         scope.add_event_processor(evt_processor)

sentry_sdk/integrations/quart.py

@@ -27,11 +27,12 @@
 
 try:
     from quart import (  # type: ignore
+        has_request_context,
+        has_websocket_context,
         Request,
         Quart,
-        _request_ctx_stack,
-        _websocket_ctx_stack,
-        _app_ctx_stack,
+        request,
+        websocket,
     )
     from quart.signals import (  # type: ignore
         got_background_exception,
@@ -100,19 +101,18 @@ def _set_transaction_name_and_source(scope, transaction_style, request):
         pass
 
 
-def _request_websocket_started(sender, **kwargs):
+def _request_websocket_started(app, **kwargs):
     # type: (Quart, **Any) -> None
     hub = Hub.current
     integration = hub.get_integration(QuartIntegration)
     if integration is None:
         return
 
-    app = _app_ctx_stack.top.app
     with hub.configure_scope() as scope:
-        if _request_ctx_stack.top is not None:
-            request_websocket = _request_ctx_stack.top.request
-        if _websocket_ctx_stack.top is not None:
-            request_websocket = _websocket_ctx_stack.top.websocket
+        if has_request_context():
+            request_websocket = request._get_current_object()
+        if has_websocket_context():
+            request_websocket = websocket._get_current_object()
 
         # Set the transaction name here, but rely on ASGI middleware
         # to actually start the transaction