Files
selfpost/internal/store/logtail.go
T
mix 5e5d157496 release: 0.5.0: Pre-1.0 security review, domain-admin role, doc consolidation
A bounce could be recorded as a successful delivery. The log-tailer's
Fixed:
  - A bounce could be recorded as a successful delivery. The log-tailer's
  - Log-tailer resumes where it stopped instead of jumping to end-of-file on
  - Level-2 rate limit no longer overshoots under concurrency: messages that
Changed:
  - The project has a single public home: `github.com/mixeme/selfpost`. Codeberg
  - Code comments no longer cite the archived specification. References like
  - `docs/code-review.md` is gone. Its plan is finished — phases 0 (bar the
  - `docs/architecture.md` gained a *Code layers* section: a diagram of
  - Phase 1 doc/code hygiene (`docs/code-review.md`): removed ~30 stale
  … (1 more in CHANGELOG)
Security:
  - Pre-release security review (plan § D, model Fable, 2026-08-06): full pass
  - `saslpasswd2` argv: the application login is now passed after a `--`
Added:
  - Optional password encryption for the two secret-bearing downloads (plan
  - Domain import accepts an encrypted export: the envelope is detected by its
  - `selfpost-backup` writes encrypted archives and reads them back:
  - `TestParseDelivery` covers the exotic mail.log shapes the review asked for
  - docs: README *Encrypting a backup or export*; `docs/security.md` §
  … (14 more in CHANGELOG)
Removed:
  - docs: `security.md` — accepted risk «restore old backup revives session rows»
Changed:
  - docs: `implementation-plan.md` trimmed to the sole open v1.x gate — pre-release
  - docs: `architecture.md` — sessions (SQLite, idle renew, password change),
  - docs: `development.md` — expanded e2e stack and `release.yml` matrix workflow.
  - docs: `security.md` — accepted risk for send-log rows stuck at `queued` after
  - docs: `roadmap.md` — optional send-log / `mail.log` follow-ups under v1.x tail.
  … (10 more in CHANGELOG)

Full detail: CHANGELOG.md (0.5.0).
2026-09-22 15:24:51 +03:00

55 lines
1.7 KiB
Go

package store
import (
"database/sql"
"errors"
"fmt"
"time"
)
// LogtailState is the persisted read position of the mail.log tailer: how far
// into the log it had got, and a fingerprint of the file that offset refers to.
// It lets the tailer resume after a panel restart instead of jumping to
// end-of-file and losing the delivery lines written while it was down.
type LogtailState struct {
Fingerprint string
Offset int64
}
// LogtailState returns the stored read position for path. ok is false the first
// time a path is followed (nothing persisted yet), which the tailer treats as
// "start at the end".
func (s *Store) LogtailState(path string) (LogtailState, bool, error) {
var st LogtailState
err := s.db.QueryRow(
`SELECT fingerprint, read_offset FROM logtail_state WHERE path = ?`,
path,
).Scan(&st.Fingerprint, &st.Offset)
if errors.Is(err, sql.ErrNoRows) {
return LogtailState{}, false, nil
}
if err != nil {
return LogtailState{}, false, fmt.Errorf("read logtail state for %q: %w", path, err)
}
return st, true, nil
}
// SaveLogtailState records the tailer's read position for path, replacing any
// previous one. It is called on a timer while tailing, so it is a single small
// upsert rather than a transaction.
func (s *Store) SaveLogtailState(path string, st LogtailState) error {
_, err := s.db.Exec(
`INSERT INTO logtail_state (path, fingerprint, read_offset, updated_at)
VALUES (?, ?, ?, ?)
ON CONFLICT(path) DO UPDATE SET
fingerprint = excluded.fingerprint,
read_offset = excluded.read_offset,
updated_at = excluded.updated_at`,
path, st.Fingerprint, st.Offset, time.Now().UTC().Format(time.RFC3339),
)
if err != nil {
return fmt.Errorf("save logtail state for %q: %w", path, err)
}
return nil
}