| 1 | package contra |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "log/slog" |
| 6 | "time" |
| 7 | |
| 8 | "github.com/carlosframework/rastrillo/db" |
| 9 | |
| 10 | "github.com/carlosframework/contra/internal/contra/auth" |
| 11 | "github.com/carlosframework/contra/internal/contra/store" |
| 12 | ) |
| 13 | |
| 14 | // SweepInterval is how often the expired-row sweep runs. Nothing depends on |
| 15 | // it being prompt: every query already carries its own expiry, so a row that |
| 16 | // outlives its deadline is inert until this deletes it. |
| 17 | const SweepInterval = 5 * time.Minute |
| 18 | |
| 19 | // Sweep deletes rows whose deadline has passed: half-finished signups and |
| 20 | // device handoffs nobody completed. |
| 21 | // |
| 22 | // Both tables are correct without it — the expiry is in every WHERE clause — |
| 23 | // so this is not about correctness. It is that an unswept table becomes a log |
| 24 | // of who tried to sign up and when, and of when each account enrolled a |
| 25 | // device, which is residue we have no reason to keep. slopbox, whose link |
| 26 | // shape this follows, has no sweeper and its rows accumulate forever. |
| 27 | func Sweep(ctx context.Context, d *db.DB, logger *slog.Logger) { |
| 28 | signups, err := auth.SweepSignupsIn(ctx, d.G, time.Now().UTC()) |
| 29 | if err != nil { |
| 30 | logger.Warn("sweep signups", "err", err) |
| 31 | } |
| 32 | links, err := store.New(d.G).SweepLinks(ctx, time.Now().UTC()) |
| 33 | if err != nil { |
| 34 | logger.Warn("sweep device links", "err", err) |
| 35 | } |
| 36 | if signups > 0 || links > 0 { |
| 37 | logger.Info("swept", "signups", signups, "device_links", links) |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | // SweepLoop runs Sweep until the context is cancelled. main starts it; App |
| 42 | // does not, so a test gets a server with no background goroutine and no |
| 43 | // clock of its own. |
| 44 | func SweepLoop(ctx context.Context, d *db.DB, logger *slog.Logger) { |
| 45 | t := time.NewTicker(SweepInterval) |
| 46 | defer t.Stop() |
| 47 | Sweep(ctx, d, logger) |
| 48 | for { |
| 49 | select { |
| 50 | case <-ctx.Done(): |
| 51 | return |
| 52 | case <-t.C: |
| 53 | Sweep(ctx, d, logger) |
| 54 | } |
| 55 | } |
| 56 | } |
| 57 | |
amadan