Files
selfpost/internal/app/password.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

28 lines
994 B
Go

package app
import (
"crypto/rand"
"encoding/base64"
"fmt"
)
// passwordBytes is the number of random bytes behind a generated application
// password. 24 bytes = 192 bits of entropy, well above any brute-force concern
// for a SASL credential the panel shows exactly once (security.md).
const passwordBytes = 24
// generatePassword returns a strong, URL-safe random password for an
// application's SASL account. The panel generates it, shows it once and never
// stores the plaintext (security.md); sasldb2 keeps only the hashed form.
//
// base64url output keeps the password to a safe ASCII alphabet with no shell or
// SMTP-special characters, so it survives being typed into client configuration
// and passed to saslpasswd2 over stdin unchanged.
func generatePassword() (string, error) {
buf := make([]byte, passwordBytes)
if _, err := rand.Read(buf); err != nil {
return "", fmt.Errorf("generate password: %w", err)
}
return base64.RawURLEncoding.EncodeToString(buf), nil
}