Fix oauth callback state validation error #103602
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Co-authored-by: jenn.muengtaweepongsa <jenn.muengtaweepongsa@sentry.io>
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Fixes
PipelineError: token_exchange_mismatched_stateduring OAuth flows. This error occurred due to transient Redis read failures (e.g., replica lag) whereRedisSessionStorewould returnNonefor a recently written state, prematurely invalidating the pipeline.Introduces an in-process cache to
RedisSessionStorethat temporarily stores freshly written state. This allows the system to tolerate brief Redis unavailability or replica lag by serving the cached state for a few retries before considering the pipeline truly invalid. Includes regression tests for transient read failures and eventual invalidation.Legal Boilerplate
Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.