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Add middleware for request prioritization (#33951)

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This adds a middleware for overload protection that is intended to help protect against malicious scrapers.
It does this via [`codel`](https://github.com/bohde/codel), which will perform the following:

1. Limit the number of in-flight requests to some user-defined max
2. When in-flight requests have reached their begin queuing requests.
    Logged-in requests having priority above logged-out requests
3. Once a request has been queued for too long,
    it has a probabilistic chance to be rejected based on how overloaded the entire system is.

When a server experiences more traffic than it can handle,
this keeps latency low for logged-in users and rejects just
enough requests from logged-out users to not overload the service.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>
This commit is contained in:
Rowan Bohde
2025-04-14 09:25:48 -05:00
committed by GitHub
parent 3a9fcac11b
commit c57304ac3f
10 changed files with 301 additions and 2 deletions
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@@ -32,6 +32,7 @@ require (
github.com/aws/aws-sdk-go-v2/service/codecommit v1.28.1
github.com/blakesmith/ar v0.0.0-20190502131153-809d4375e1fb
github.com/blevesearch/bleve/v2 v2.4.2
github.com/bohde/codel v0.2.0
github.com/buildkite/terminal-to-html/v3 v3.16.8
github.com/caddyserver/certmagic v0.22.0
github.com/charmbracelet/git-lfs-transfer v0.2.0