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 +1,124 @@
+package web
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/darroyo/nasctl/internal/db"
+	"github.com/darroyo/nasctl/internal/importer"
+	"github.com/darroyo/nasctl/internal/modules/nfs"
+	"github.com/darroyo/nasctl/internal/modules/samba"
+)
+
+type importStatus struct {
+	Samba   moduleImportStatus `json:"samba"`
+	NFS     moduleImportStatus `json:"nfs"`
+}
+
+type moduleImportStatus struct {
+	Done         bool   `json:"done"`
+	LastImportAt string `json:"last_import_at,omitempty"`
+	Count        int    `json:"count,omitempty"`
+}
+
+func (s *Server) handleImportStatus(w http.ResponseWriter, r *http.Request) {
+	sambaDone, _, _ := s.DB.GetSetting("import.samba.done")
+	nfsDone, _, _ := s.DB.GetSetting("import.nfs.done")
+
+	shares, _ := s.DB.ListSambaShares()
+	exports, _ := s.DB.ListNFSExports()
+
+	status := importStatus{
+		Samba: moduleImportStatus{
+			Done:  sambaDone == "true",
+			Count: len(shares),
+		},
+		NFS: moduleImportStatus{
+			Done:  nfsDone == "true",
+			Count: len(exports),
+		},
+	}
+
+	if ts, ok, _ := s.DB.GetSetting("import.samba.at"); ok {
+		status.Samba.LastImportAt = ts
+	}
+	if ts, ok, _ := s.DB.GetSetting("import.nfs.at"); ok {
+		status.NFS.LastImportAt = ts
+	}
+
+	writeJSON(w, http.StatusOK, status)
+}
+
+func (s *Server) handleImportSamba(w http.ResponseWriter, r *http.Request) {
+	if err := importer.ResetImportFlags(r.Context(), s.DB); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	shares, err := importer.ImportSambaShares(s.SMBConfPath)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	if len(shares) == 0 {
+		writeJSON(w, http.StatusOK, map[string]any{"imported": 0, "message": "no shares found in smb.conf"})
+		return
+	}
+
+	if err := s.DB.ReplaceSambaShares(shares); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	if err := s.DB.MarkDirty(samba.ModuleName); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	_ = s.DB.SetSetting("import.samba.done", "true")
+	_ = s.DB.SetSetting("import.samba.at", time.Now().Format(time.RFC3339))
+
+	writeJSON(w, http.StatusOK, map[string]any{"imported": len(shares)})
+}
+
+func (s *Server) handleImportNFS(w http.ResponseWriter, r *http.Request) {
+	if err := importer.ResetImportFlags(r.Context(), s.DB); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	exports, err := importer.ImportNFSExports(s.ExportsPath)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	if len(exports) == 0 {
+		writeJSON(w, http.StatusOK, map[string]any{"imported": 0, "message": "no exports found in exports file"})
+		return
+	}
+
+	if err := s.DB.ReplaceNFSExports(exports); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	if err := s.DB.MarkDirty(nfs.ModuleName); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	_ = s.DB.SetSetting("import.nfs.done", "true")
+	_ = s.DB.SetSetting("import.nfs.at", time.Now().Format(time.RFC3339))
+
+	writeJSON(w, http.StatusOK, map[string]any{"imported": len(exports)})
+}
+
+type dbExporter interface {
+	ReplaceSambaShares(shares []db.SambaShare) error
+	ReplaceNFSExports(exports []db.NFSExport) error
+	MarkDirty(module string) error
+}
+
+var _ dbExporter = (*db.DB)(nil)