sneak
14e8ee7413
check / check (push) Waiting to run
Each check servewaf runs on a request is a type in its own file behind one interface, heuristic, and is registered in one of four ordered lists in heuristics.go. Order and behaviour are unchanged. Every refusal now logs heuristic, the name of the heuristic that made it, and heuristic_figures, the figures it acted on. A ban by refusal_limit or byte_limits after the answer logs report_heuristic and report_heuristic_figures instead, so a line can name both. All four are in docs/request-log.md, and SPEC.md names each heuristic at its step. Model: opus-5-5
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
package servewaf
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// The heuristic countries. It reads SWWAF_DENIED_COUNTRIES and
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// SWWAF_EXCLUSIVELY_ALLOWED_COUNTRIES.
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import (
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"context"
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"slices"
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"time"
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"sneak.berlin/go/smallwebwaf/internal/requestlog"
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)
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// countries refuses a request by the client's country as it was looked up. A
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// client without a country, or whose country cannot be found, is refused only
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// by SWWAF_EXCLUSIVELY_ALLOWED_COUNTRIES. Its figures are the country and the
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// setting that refused it.
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type countries struct{}
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func (countries) name() string { return "countries" }
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func (countries) check(_ context.Context, rq *request, _ time.Time) *verdict {
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denied := rq.h.config.DeniedCountries
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allowed := rq.h.config.ExclusivelyAllowedCountries
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country := rq.line.Country
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var setting string
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switch {
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case slices.Contains(denied, country):
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setting = "SWWAF_DENIED_COUNTRIES"
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case len(allowed) > 0 && !slices.Contains(allowed, country):
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setting = "SWWAF_EXCLUSIVELY_ALLOWED_COUNTRIES"
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default:
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return nil
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}
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return &verdict{
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action: requestlog.ActionCountryDenied,
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figures: map[string]any{"country": country, "setting": setting},
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}
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}
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