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SPEC.md is the only place that says how smallwebwaf behaves and why; docs/ holds lists linking to it; the README is short and links to both. Passed independent review in round 8. Model: fable-5-1 (writing); opus-5-5 (review, merge)
49 lines
2.1 KiB
Markdown
49 lines
2.1 KiB
Markdown
# Admin endpoints
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The endpoints under `/_smallwebwaf/`, what each takes and what each answers.
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"Admin endpoints" in [`SPEC.md`](../SPEC.md) says which checks they go through
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and how their tokens work.
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- `GET /_smallwebwaf/healthz`: `200` and `ok`, to anyone.
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- `GET /_smallwebwaf/metrics`: the metrics, for `SWWAF_METRICS_TOKEN` (see
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[`metrics.md`](metrics.md)).
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- `GET /_smallwebwaf/bans`: every ban held, under `bans`, each as `bans.json`
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lists it. Needs `SWWAF_ADMIN_TOKEN`, as do the three below.
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- `POST /_smallwebwaf/bans`: bans a netblock. The body is a JSON object of
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`netblock`, `duration` and, if you like, `reason`. `netblock` is a netblock
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such as `203.0.113.0/24`, or a client's address, which bans its IPv4 netblock
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(`SWWAF_BAN_SCOPE_V4_PREFIX`) or its IPv6 group. `duration` is a duration such
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as `1h` or `7d`, or `permanent`. A bad body is answered `400`, saying what is
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wrong:
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- one that is not such an object, or has another field;
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- one longer than 4 KiB;
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- one that names an IPv4-mapped netblock, or an address with a zone.
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- `DELETE /_smallwebwaf/bans/<client>`: lifts every active ban covering the
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address `<client>`. It answers `404` when none is active.
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- `GET /_smallwebwaf/clients/<ip>`: what `smallwebwaf` knows of the client.
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Under `client`, its counters and history as `clients.json` holds them, or
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`null` when `clients.json` does not hold it. Under `bans`, every ban covering
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the address, with its notes.
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## Examples
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With `SWWAF_ADMIN_TOKEN` set, and the token in `$TOKEN`:
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```sh
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# Every ban.
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curl -H "Authorization: Bearer $TOKEN" https://app.example/_smallwebwaf/bans
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# Ban 203.0.113.0/24 for seven days.
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curl -H "Authorization: Bearer $TOKEN" \
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--json '{"netblock": "203.0.113.0/24", "duration": "7d", "reason": "probes for logins"}' \
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https://app.example/_smallwebwaf/bans
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# Lift the bans on 203.0.113.9.
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curl -H "Authorization: Bearer $TOKEN" -X DELETE \
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https://app.example/_smallwebwaf/bans/203.0.113.9
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# What smallwebwaf knows of 203.0.113.9.
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curl -H "Authorization: Bearer $TOKEN" \
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https://app.example/_smallwebwaf/clients/203.0.113.9
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```
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