Security authn via netty channel validator #95112
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…uthn-with-header-validator
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This PR tests that malformed HTTP requests that fail at the decoding stage don't go through validation and are further dispatched as bad requests. Related: #95112
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Following the changes in #95112, which relocated the calls into the AuthenticationService that authenticate HTTP requests, the authentication duration was no longer comprised in between the Tracer#startTrace and Tracer#stopTrace. Consequently, the span records didn't cover the authentication duration any longer. This PR remedies that by changing the Tracer implementation, i.e. APMTracer, to look for the trace start time instant in the transient thread context and use that when starting traces (overriding the now default). The trace start time is set in the thread context when the request-wise thread context is first populated (with HTTP request headers).
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Instead of not authN and letting them through, this PR rejects OPTIONS requests with a body (400). Relates #95112
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Jun 15, 2023
Hooks "REST" authN, as a "validator", into the new netty channel interceptor for http headers.
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Jun 15, 2023
This address HTTP OPTIONS requests following the authentication refactoring in elastic#95112. Relates elastic#95112
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Instead of not authN and letting them through, this PR rejects OPTIONS requests with a body (400). Relates elastic#95112
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Jun 19, 2023
This PR tests that malformed HTTP requests that fail at the decoding stage don't go through validation and are further dispatched as bad requests. Related: elastic#95112
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This is a backport of multiple work items related to authentication enhancements for HTTP, which were originally merged in the 8.8 - 8.9 releases. Hence, the HTTP (only the netty4-based implementation (default), not the NIO one) authentication implementation gets a throughput boost (especially for requests failing authn). Relates to: ES-6188 #92220 #95112
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Hooks "REST" authN, as a "validator", into the new netty channel interceptor for http headers.