feat(phase2,phase4): comments, attachments, notifications, Web Push, import/export
Comments and attachments close out phase 2. Files are stored content-addressed by hash, so the path never contains anything the uploader chose — a filename is attacker-controlled text, and building a path from it is how "../" becomes a write outside the data directory. Everything downloads as application/octet-stream: an uploaded SVG served inline would run its own script on this origin with the session cookie attached. Web Push is written directly against RFC 8030/8291/8292 rather than pulled in — it is three specs' worth of well-defined crypto and about two hundred lines, and the alternatives carry a JWT and crypto stack each larger than the file. Phase 4 imports Todoist's CSV and exports it back. Todoist numbers priorities the opposite way to how it displays them — its 4 is P1 — so the two are converted rather than copied; getting it backwards silently inverts the urgency of every imported task. Nesting is positional, so the reader keeps an indent stack and the writer never sorts. The round trip is tested as the brief asks: a CSV in, out, and back produces an identical project, and two exports of one project are byte-identical. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
co-authored by
Claude Opus 5
parent
0ee72d399c
commit
4058ff0533
@@ -0,0 +1,232 @@
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package store
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import (
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"context"
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"database/sql"
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"time"
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)
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type Notification struct {
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ID string
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UserID string
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ActorID string
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ActorName string
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ProjectID string
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TaskID string
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Kind string
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Title string
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Body string
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ReadAt *time.Time
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CreatedAt time.Time
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}
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func (db *DB) CreateNotification(ctx context.Context, n *Notification) error {
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if n.ID == "" {
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n.ID = NewID()
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}
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n.CreatedAt = time.Now().UTC()
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_, err := db.ExecContext(ctx,
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`INSERT INTO notifications (id, user_id, actor_id, project_id, task_id, kind,
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title, body, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
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n.ID, n.UserID, nullString(n.ActorID), nullString(n.ProjectID),
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nullString(n.TaskID), n.Kind, n.Title, n.Body, n.CreatedAt.Unix())
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return err
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}
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func (db *DB) ListNotifications(ctx context.Context, userID string, limit int) ([]Notification, error) {
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if limit <= 0 || limit > 100 {
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limit = 30
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}
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rows, err := db.QueryContext(ctx, `
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SELECT n.id, n.user_id, n.actor_id, COALESCE(u.name, ''), n.project_id, n.task_id,
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n.kind, n.title, n.body, n.read_at, n.created_at
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FROM notifications n
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LEFT JOIN users u ON u.id = n.actor_id
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WHERE n.user_id = ?
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ORDER BY n.created_at DESC
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LIMIT ?`, userID, limit)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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out := []Notification{}
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for rows.Next() {
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var n Notification
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var actorID, projectID, taskID sql.NullString
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var readAt sql.NullInt64
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var created int64
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if err := rows.Scan(&n.ID, &n.UserID, &actorID, &n.ActorName, &projectID,
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&taskID, &n.Kind, &n.Title, &n.Body, &readAt, &created); err != nil {
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return nil, err
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}
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n.ActorID, n.ProjectID, n.TaskID = actorID.String, projectID.String, taskID.String
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if readAt.Valid {
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v := time.Unix(readAt.Int64, 0).UTC()
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n.ReadAt = &v
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}
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n.CreatedAt = time.Unix(created, 0).UTC()
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out = append(out, n)
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}
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return out, rows.Err()
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}
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func (db *DB) UnreadNotificationCount(ctx context.Context, userID string) (int, error) {
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var n int
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err := db.QueryRowContext(ctx,
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`SELECT count(*) FROM notifications WHERE user_id = ? AND read_at IS NULL`,
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userID).Scan(&n)
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return n, err
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}
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// MarkNotificationsRead marks one, or all of them when id is empty.
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func (db *DB) MarkNotificationsRead(ctx context.Context, userID, id string) error {
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query := `UPDATE notifications SET read_at = ? WHERE user_id = ? AND read_at IS NULL`
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args := []any{time.Now().Unix(), userID}
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if id != "" {
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query += ` AND id = ?`
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args = append(args, id)
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}
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_, err := db.ExecContext(ctx, query, args...)
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return err
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}
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// ProjectMemberIDs is everyone who can see a project, owner included — the audience
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// for a notification about something that happened inside it.
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func (db *DB) ProjectMemberIDs(ctx context.Context, projectID string) ([]string, error) {
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rows, err := db.QueryContext(ctx, `
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SELECT owner_id FROM projects WHERE id = ?
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UNION
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SELECT user_id FROM project_members WHERE project_id = ?`, projectID, projectID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var out []string
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for rows.Next() {
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var id string
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if err := rows.Scan(&id); err != nil {
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return nil, err
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}
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out = append(out, id)
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}
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return out, rows.Err()
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}
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// --- Web Push subscriptions --------------------------------------------------------
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type PushSubscription struct {
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ID string
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UserID string
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Endpoint string
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P256dh string
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Auth string
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UserAgent string
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Failures int
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}
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// SavePushSubscription is an upsert on the endpoint: a browser that re-subscribes
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// produces the same endpoint, and a second row would mean two identical
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// notifications on one device.
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func (db *DB) SavePushSubscription(ctx context.Context, sub *PushSubscription) error {
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if sub.ID == "" {
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sub.ID = NewID()
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}
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_, err := db.ExecContext(ctx,
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`INSERT INTO push_subscriptions (id, user_id, endpoint, p256dh, auth, user_agent, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?)
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ON CONFLICT (endpoint) DO UPDATE SET
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user_id = excluded.user_id,
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p256dh = excluded.p256dh,
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auth = excluded.auth,
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user_agent = excluded.user_agent,
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failures = 0`,
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sub.ID, sub.UserID, sub.Endpoint, sub.P256dh, sub.Auth, sub.UserAgent,
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time.Now().Unix())
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return err
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}
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func (db *DB) ListPushSubscriptions(ctx context.Context, userID string) ([]PushSubscription, error) {
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rows, err := db.QueryContext(ctx,
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`SELECT id, user_id, endpoint, p256dh, auth, user_agent, failures
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FROM push_subscriptions WHERE user_id = ?`, userID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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out := []PushSubscription{}
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for rows.Next() {
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var s PushSubscription
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if err := rows.Scan(&s.ID, &s.UserID, &s.Endpoint, &s.P256dh, &s.Auth,
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&s.UserAgent, &s.Failures); err != nil {
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return nil, err
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}
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out = append(out, s)
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}
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return out, rows.Err()
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}
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func (db *DB) DeletePushSubscription(ctx context.Context, endpoint string) error {
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_, err := db.ExecContext(ctx, `DELETE FROM push_subscriptions WHERE endpoint = ?`, endpoint)
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return err
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}
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// RecordPushFailure counts a delivery failure and drops the subscription once it
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// has failed enough times. A push service says 404 or 410 when an endpoint is gone,
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// but it also has bad days — forgiving a few failures keeps a flaky network from
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// silently unsubscribing somebody's phone.
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func (db *DB) RecordPushFailure(ctx context.Context, endpoint string, permanent bool) error {
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if permanent {
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return db.DeletePushSubscription(ctx, endpoint)
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}
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_, err := db.ExecContext(ctx,
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`UPDATE push_subscriptions SET failures = failures + 1 WHERE endpoint = ?`, endpoint)
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if err != nil {
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return err
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}
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_, err = db.ExecContext(ctx,
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`DELETE FROM push_subscriptions WHERE endpoint = ? AND failures >= 10`, endpoint)
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return err
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}
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// --- VAPID keypair ------------------------------------------------------------------
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// InstanceKeys returns the VAPID keypair, generating it on first use.
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//
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// Generated rather than configured: it identifies this instance to push services
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// and is not something an operator should have to produce. Rotating it only costs
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// every browser re-subscribing.
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func (db *DB) InstanceKeys(ctx context.Context, generate func() (public, private string, err error)) (string, string, error) {
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var public, private string
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err := db.QueryRowContext(ctx,
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`SELECT public_key, private_key FROM instance_keys LIMIT 1`).Scan(&public, &private)
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if err == nil {
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return public, private, nil
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}
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if err != sql.ErrNoRows {
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return "", "", err
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}
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public, private, err = generate()
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if err != nil {
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return "", "", err
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}
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_, err = db.ExecContext(ctx,
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`INSERT INTO instance_keys (id, public_key, private_key, created_at) VALUES (?, ?, ?, ?)`,
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NewID(), public, private, time.Now().Unix())
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if err != nil {
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// Another request generated one first; take theirs so the two agree.
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var existingPub, existingPriv string
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if qErr := db.QueryRowContext(ctx,
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`SELECT public_key, private_key FROM instance_keys LIMIT 1`).
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Scan(&existingPub, &existingPriv); qErr == nil {
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return existingPub, existingPriv, nil
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}
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return "", "", err
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}
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return public, private, nil
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}
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