Improve passage support

This commit adds parsing of unencrypted passage identities and
automatically mounts an existing passage store under the mount
point passage/ if it's detected during setup (not later).

Fixes gopasspw#2059

RELEASE_NOTES=[ENHANCEMENT] Improve passage support

Signed-off-by: Dominik Schulz <[email protected]>

internal/action/setup.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"path/filepath"
 
 	"github.com/fatih/color"
 	"github.com/gopasspw/gopass/internal/action/exit"
@@ -15,6 +16,7 @@ import (
 	"github.com/gopasspw/gopass/internal/store/root"
 	"github.com/gopasspw/gopass/pkg/ctxutil"
 	"github.com/gopasspw/gopass/pkg/debug"
+	"github.com/gopasspw/gopass/pkg/fsutil"
 	"github.com/gopasspw/gopass/pkg/pwgen/xkcdgen"
 	"github.com/gopasspw/gopass/pkg/termio"
 	"github.com/urfave/cli/v2"
@@ -285,6 +287,11 @@ func (s *Action) initLocal(ctx context.Context) error {
 	}
 	// TODO remotes for fossil, etc.
 
+	// detect and add mount a for passage
+	if err := s.initDetectPassage(ctx); err != nil {
+		out.Warningf(ctx, "Failed to add passage mount: %s", err)
+	}
+
 	// save config.
 	if err := s.cfg.Save(); err != nil {
 		return fmt.Errorf("failed to save config: %w", err)
@@ -295,6 +302,25 @@ func (s *Action) initLocal(ctx context.Context) error {
 	return nil
 }
 
+func (s *Action) initDetectPassage(ctx context.Context) error {
+	pIds := age.PassageIdFile()
+	if !fsutil.IsFile(pIds) {
+		debug.Log("no passage identities found at %s", pIds)
+
+		return nil
+	}
+
+	pDir := filepath.Dir(pIds)
+
+	if err := s.Store.AddMount(ctx, "passage", pDir); err != nil {
+		return fmt.Errorf("failed to mount passage dir: %w", err)
+	}
+
+	out.OKf(ctx, "Detected passage store at %s. Mounted below passage/.", pDir)
+
+	return nil
+}
+
 // initCreateTeam will create a local root store and a shared team store.
 func (s *Action) initCreateTeam(ctx context.Context, team, remote string) error {
 	var err error

internal/backend/crypto/age/identities.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"filippo.io/age"
+	"github.com/gopasspw/gopass/pkg/appdir"
 	"github.com/gopasspw/gopass/pkg/ctxutil"
 	"github.com/gopasspw/gopass/pkg/debug"
 )
@@ -250,12 +251,42 @@ func (a *Age) getAllIdentities(ctx context.Context) (map[string]age.Identity, er
 	}
 	debug.Log("got %d merged identities", len(native))
 
-	// TODO(gh/2059) add passage identities from
-	// $HOME/.passage/identities
+	ps, err := a.getPassageIdentities(ctx)
+	if err != nil {
+		debug.Log("unable to load passage identities: %s", err)
+	}
+
+	// merge
+	for k, v := range ps {
+		native[k] = v
+	}
 
 	return native, nil
 }
 
+func (a *Age) getPassageIdentities(ctx context.Context) (map[string]age.Identity, error) {
+	fn := PassageIdFile()
+	fh, err := os.Open(fn)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open %s: %w", fn, err)
+	}
+	defer fh.Close()
+
+	ids, err := age.ParseIdentities(fh)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO(gh/2059) support encrypted passage identities
+
+	return idMap(ids), nil
+}
+
+// PassageIdFile returns the location of the passage identities file
+func PassageIdFile() string {
+	return filepath.Join(appdir.UserHome(), ".passage", "identities")
+}
+
 func (a *Age) getNativeIdentities(ctx context.Context) (map[string]age.Identity, error) {
 	ids, err := a.Identities(ctx)
 	if err != nil {