Simplify recent vault open flow and Android local sync

session/session.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"io"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -177,6 +178,18 @@ func (m *Manager) SynchronizeFromLocal(path string) error {
 	return m.persistMergedToCurrentSource(merged)
 }
 
+func (m *Manager) SynchronizeFromLocalBytes(name string, content []byte) error {
+	other, _, err := loadLocalSourceBytes(name, content, m.key)
+	if err != nil {
+		return err
+	}
+	merged, err := m.mergedWithPeer(other)
+	if err != nil {
+		return err
+	}
+	return m.persistMergedToCurrentSource(merged)
+}
+
 func (m *Manager) SynchronizeToLocal(path string) error {
 	other, config, err := loadLocalSourceOrEmpty(path, m.key)
 	if err != nil {
@@ -908,6 +921,17 @@ func loadLocalSource(path string, key vault.MasterKey) (vault.Model, *vault.KDBX
 	return model, config, nil
 }
 
+func loadLocalSourceBytes(name string, content []byte, key vault.MasterKey) (vault.Model, *vault.KDBXConfig, error) {
+	if len(content) == 0 {
+		return vault.Model{}, nil, fmt.Errorf("open %s for synchronize: %w", name, io.EOF)
+	}
+	model, config, err := vault.LoadKDBXWithConfig(bytes.NewReader(content), key)
+	if err != nil {
+		return vault.Model{}, nil, fmt.Errorf("decode %s for synchronize: %w", name, err)
+	}
+	return model, config, nil
+}
+
 func loadLocalSourceOrEmpty(path string, key vault.MasterKey) (vault.Model, *vault.KDBXConfig, error) {
 	model, config, err := loadLocalSource(path, key)
 	if err == nil {