Files
smallwebwaf/internal/waf/countries.go
T
sneak a8b24a843b
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Format Go with gofmt, then golines -m 77 (closes #215)
script/fmt now runs golines -m 77 after gofmt, repeating golines until
it changes nothing, since one pass can leave a line the next splits.
script/fmt-check fails when either would change a file.
script/bootstrap installs golines v0.13.0 with go install, pinned to
its commit, and checks the installed version with go version -m.

The tree is reformatted. The longer lines this makes are fixed by
hand: nolint directives moved onto their own line above the statement,
one string split, and 20 functions over funlen's 80 lines shortened or
split, RunWAF and limitPercentages among them.

Model: opus-5-5
2026-11-11 14:50:46 +00:00

40 lines
952 B
Go

package waf
// The heuristic countries. It reads SWW_EXCLUSIVELY_ALLOWED_COUNTRIES.
import (
"context"
"slices"
"time"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
)
// countries refuses a request when SWW_EXCLUSIVELY_ALLOWED_COUNTRIES is set and
// does not hold the client's country as it was looked up. A client without a
// country, or whose country cannot be found, is refused. Its figures are the
// country and the setting that refused it.
type countries struct{}
func (countries) name() string { return "countries" }
func (countries) check(
_ context.Context,
rq *request,
_ time.Time,
) *verdict {
allowed := rq.h.config.ExclusivelyAllowedCountries
country := rq.line.Country
if len(allowed) == 0 || slices.Contains(allowed, country) {
return nil
}
return &verdict{
action: requestlog.ActionCountryDenied,
figures: map[string]any{
"country": country, "setting": "SWW_EXCLUSIVELY_ALLOWED_COUNTRIES",
},
}
}