feat: import existing smb.conf and /etc/exports on first boot

Adds auto-detection of pre-existing Samba shares and NFS exports when nasctl is installed on a host that already has these configs. New package internal/importer parses smb.conf (INI-style) and /etc/exports (line-based) and imports them into SQLite. Imported shares/exports are marked dirty so the user must review and apply manually before any file is overwritten. Backup: before the first Apply, each module backs up the original config to <path>.nasctl.bak.<timestamp> (one time only). New CLI flag --import-on-boot / NASCTL_IMPORT_ON_BOOT env var (default false, opt-in). New API endpoints: GET /api/import/status POST /api/import/samba POST /api/import/nfs New DB methods ReplaceSambaShares/ReplaceNFSExports (transactional replace-all), guarded by import.samba.done / import.nfs.done settings flags.
2026-07-05 21:45:25 -04:00
parent d6b184d19b
commit 4ae7335b31
14 changed files with 1153 additions and 0 deletions
@@ -0,0 +1,76 @@
+package db
+
+import (
+	"fmt"
+)
+
+func (d *DB) ReplaceSambaShares(shares []SambaShare) error {
+	tx, err := d.conn.Begin()
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	if _, err := tx.Exec(`DELETE FROM samba_shares`); err != nil {
+		return fmt.Errorf("clear samba_shares: %w", err)
+	}
+
+	for _, share := range shares {
+		validUsers, err := encodeJSONStrings(share.ValidUsers)
+		if err != nil {
+			return err
+		}
+		validGroups, err := encodeJSONStrings(share.ValidGroups)
+		if err != nil {
+			return err
+		}
+		readOnly := 0
+		if share.ReadOnly {
+			readOnly = 1
+		}
+		guestOK := 0
+		if share.GuestOK {
+			guestOK = 1
+		}
+		_, err = tx.Exec(`
+			INSERT INTO samba_shares (name, path, comment, read_only, guest_ok, valid_users, valid_groups)
+			VALUES (?, ?, ?, ?, ?, ?, ?)`,
+			share.Name, share.Path, share.Comment, readOnly, guestOK, validUsers, validGroups,
+		)
+		if err != nil {
+			return fmt.Errorf("insert samba share %s: %w", share.Name, err)
+		}
+	}
+
+	return tx.Commit()
+}
+
+func (d *DB) ReplaceNFSExports(exports []NFSExport) error {
+	tx, err := d.conn.Begin()
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	if _, err := tx.Exec(`DELETE FROM nfs_exports`); err != nil {
+		return fmt.Errorf("clear nfs_exports: %w", err)
+	}
+
+	for _, exp := range exports {
+		clients, err := encodeJSONStrings(exp.Clients)
+		if err != nil {
+			return err
+		}
+		_, err = tx.Exec(`
+			INSERT INTO nfs_exports (path, clients, options)
+			VALUES (?, ?, ?)`,
+			exp.Path, clients, exp.Options,
+		)
+		if err != nil {
+			return fmt.Errorf("insert nfs export %s: %w", exp.Path, err)
+		}
+	}
+
+	return tx.Commit()
+}
+