sneak
d8fefb1288
check / check (push) Failing after 14m41s
Rename too_large, rate_limited, rule_blocked and denied, and split banned into temporarily_banned and permanently_banned by whether the ban runs out. A client under both a temporary and a permanent ban gets the permanent one. A request that makes a ban permanent gets permanently_banned. A ban rule, a trap path or a CrowdSec decision gets the value for the ban it makes, and in observe mode would_action names the ban enforce mode would have made. The offence kind rule_blocked follows, as a metric label and a key in clients.json. Model: opus-5-5
42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
package discriminator
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// The heuristic blocklists. It reads SWW_BLOCKLIST_ACTION, and the blocklists
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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/requestlog"
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)
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// blocklists notes the blocklists that list the client, as noteListed does,
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// and refuses the request when SWW_BLOCKLIST_ACTION is deny. Being limit, it
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// lowers the client's limits instead (see limitPercentages), and being log, it
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// does nothing more. Its figure is the blocklists that list the client.
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type blocklists struct{}
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func (blocklists) name() string { return "blocklists" }
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func (blocklists) check(_ context.Context, rq *request, _ time.Time) *verdict {
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listedBy := rq.h.lists.ListedBy(rq.client)
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rq.blocklisted = len(listedBy) > 0
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rq.noteListed(listedBy, "listed by a blocklist")
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if !rq.refusedByBlocklists(listedBy) {
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return nil
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}
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return &verdict{
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action: requestlog.ActionClientDenied,
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figures: map[string]any{"lists": listedBy},
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}
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}
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// refusedByBlocklists reports whether the heuristic blocklists refuses a
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// client, given listedBy, the blocklists that list it: it does when one lists
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// it and SWW_BLOCKLIST_ACTION is deny.
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func (rq *request) refusedByBlocklists(listedBy []string) bool {
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return len(listedBy) > 0 && rq.h.config.BlocklistAction == deny
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}
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