sneak
d282a737a8
check / check (push) Successful in 4m46s
Every setting of discriminator and rproxy is read through viper, in place of the os.LookupEnv function Main passed down. NewViper turns AutomaticEnv and AllowEmptyEnv on, so a setting that is set but empty reads as set. A setting may also be given as a file, the _FILE form, which rproxy's settings now have too; rproxy still writes nothing to disk. The settings are renamed. Discriminator's take the prefix SWW_WAF_, rproxy's take SWW_RPROXY_, and the shared SWW_COMMAND keeps SWW_. The Core Rule Set's settings take SWW_WAF_CORE_RULE_SET_ rather than SWW_WAF_WAF_. Model: deepseek-v4-pro (first version); opus-5-5 (rework)
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
package discriminator
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// The heuristic crowdsec. It reads SWW_WAF_CROWDSEC_LAPI_URL, and the decisions
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// through the reputation lists.
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import (
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"context"
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"time"
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"sneak.berlin/go/smallwebwaf/internal/bans"
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"sneak.berlin/go/smallwebwaf/internal/config"
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"sneak.berlin/go/smallwebwaf/internal/reputation"
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"sneak.berlin/go/smallwebwaf/internal/requestlog"
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)
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// crowdSec refuses a request when a decision of the CrowdSec decision list on
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// the client is in force at now. It then adds the tag crowdsec, notes the
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// list, as noteHit does, and bans the client until that decision ends. Its
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// figures are the decision's scenario and when it ends.
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type crowdSec struct{}
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func (crowdSec) name() string { return "crowdsec" }
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func (crowdSec) check(_ context.Context, rq *request, now time.Time) *verdict {
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decision, listed := rq.crowdSecDecisionInForce(now)
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if !listed {
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return nil
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}
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rq.addTag(config.CrowdSecTag)
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rq.noteHit(bans.ReputationHit{Source: rq.h.config.CrowdSecDecisionsURL},
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"listed by the CrowdSec decision list")
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return &verdict{
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action: rq.banForCrowdSec(now, decision),
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figures: map[string]any{
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"scenario": decision.Scenario,
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"expires": requestlog.FormatTime(decision.Expires),
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},
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}
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}
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// crowdSecDecisionInForce returns the decision of the CrowdSec decision list on
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// the client that is in force at now, and reports whether there is one, which
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// the heuristic crowdsec refuses the request for.
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func (rq *request) crowdSecDecisionInForce(
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now time.Time,
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) (reputation.Decision, bool) {
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return rq.h.lists.CrowdSecDecision(rq.client, now)
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}
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