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scan-alert-hardening: different-finder re-alert within 250m window + fingerprint 24h block (12/12 scenarios pass)

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This commit is contained in:
Sam Rolfe
2026-08-07 17:29:47 +10:00
parent f646af3ec6
commit 61737825ea
9 changed files with 140 additions and 33 deletions
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12
frontend/internal/db/queries.sql
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@@ -47,8 +47,8 @@ INSERT INTO tags (tag_code) VALUES ($1)
RETURNING *;
-- name: InsertScan :one
INSERT INTO scans (tag_id, lat, lng, location_shared, scanner_phone)
VALUES ($1, $2, $3, $4, $5)
INSERT INTO scans (tag_id, lat, lng, location_shared, scanner_phone, fingerprint)
VALUES ($1, $2, $3, $4, $5, $6)
RETURNING *;
-- name: GetLastAlertByTag :one
@@ -67,4 +67,10 @@ LIMIT 1;
UPDATE scans SET alert_sent = $2 WHERE id = $1;
-- name: SetScanPhone :exec
UPDATE scans SET scanner_phone = $2 WHERE id = $1;
UPDATE scans SET scanner_phone = $2, fingerprint = $3 WHERE id = $1;
-- name: GetRecentScanByFingerprint :one
SELECT * FROM scans
WHERE fingerprint = $1 AND id <> $2 AND scanned_at > now() - interval '24 hours'
ORDER BY scanned_at DESC
LIMIT 1;