xds: Add ext_authz response handling - #13037
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kannanjgithub
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Sep 8, 2026
Part 2 of the client-side ext_authz filter. Sits on top of #12493. Adds CheckResponseHandler, which interprets the CheckResponse from the authorization service. It evaluates OkHttpResponse vs DeniedHttpResponse, maps HTTP status codes to gRPC statuses, applies failure_mode_allow semantics when the authz server is unreachable, and validates decoder header mutations against the configured HeaderMutationRulesConfig. AuthzResponse is the resulting value object carrying the allow/deny decision, the gRPC status for denied calls, and any header/trailer mutations to apply.
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Part 2 of the client-side ext_authz filter. Sits on top of #12493 (merged).
Adds
CheckResponseHandler, which interprets theCheckResponsefrom the authorization service. It evaluatesOkHttpResponsevsDeniedHttpResponse, maps HTTP status codes to gRPC statuses, appliesfailure_mode_allowsemantics when the authz server is unreachable, and validates decoder header mutations against the configuredHeaderMutationRulesConfig.AuthzResponseis the resulting value object carrying the allow/deny decision, the gRPC status for denied calls, and any header/trailer mutations to apply.