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files: seed a default README.txt into every member's public area

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ensureUserPub only ran os.MkdirAll, so a freshly-provisioned /public
(and thus ~<name>/public on the web) came up empty — only ~chovy had a
README because it was uploaded by hand. Embed that help text as a
default and write it whenever the area has no README.txt.

ensureUserPub is hit on SFTP connect (fs.go) and when the web host
materializes ~<name>/public (AnonRoot), so this self-heals every
existing empty member the next time they connect or their page is
viewed — no manual backfill. A member's own README is never clobbered.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Anthony Ettinger 2026-07-01 02:43:27 +00:00
parent 042166b05f
commit d19c5c4c3e
4 changed files with 111 additions and 10 deletions
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26
internal/files/backend.go
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@ -23,6 +23,7 @@
package files
import (
_ "embed"
"io/fs"
"os"
"path/filepath"
@ -34,6 +35,15 @@ import (
"github.com/profullstack/agentbbs/internal/store"
)
// defaultPublicReadme seeds every member's public area so ~<name>/public is
// never a bare "(empty)" listing — it explains the SFTP endpoint and the two
// areas. Written on first materialization of the area (and re-seeded if absent),
// so it self-heals existing members the next time they connect or their page is
// viewed. Members are free to delete or replace it.
//
//go:embed default_readme.txt
var defaultPublicReadme []byte
// Setting keys persisted in files_settings.
const (
// settingPublicWrite is "members" (default) or "off". When "off", the
@ -111,9 +121,21 @@ func (s *Service) ensureWorkspace(user string) error {
}
// ensureUserPub creates a member's public area if absent. It is world-readable
// (0o755) because the web host serves it anonymously at ~<name>/public.
// (0o755) because the web host serves it anonymously at ~<name>/public. It also
// seeds a default README.txt when the area has none, so a freshly-provisioned
// (or previously-empty) public listing greets visitors with the SFTP how-to
// instead of "(empty)". Members may delete or overwrite it freely.
func (s *Service) ensureUserPub(user string) error {
return os.MkdirAll(s.userPub(user), 0o755)
dir := s.userPub(user)
if err := os.MkdirAll(dir, 0o755); err != nil {
return err
}
readme := filepath.Join(dir, "README.txt")
if _, err := os.Stat(readme); os.IsNotExist(err) {
// Best-effort: a seed failure must not block file access.
_ = os.WriteFile(readme, defaultPublicReadme, 0o644)
}
return nil
}
// ownedUsage sums a member's two owned areas — their private /me and their