feat: persistent session name (#902)

* feat: persistent session name

* chore: update

server/system.go

@@ -1,10 +1,12 @@
 package server
 
 import (
+	"context"
 	"encoding/json"
 	"net/http"
 	"os"
 
+	"github.com/google/uuid"
 	"github.com/usememos/memos/api"
 	"github.com/usememos/memos/common"
 
@@ -61,6 +63,10 @@ func (s *Server) registerSystemRoutes(g *echo.Group) {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find system setting list").SetInternal(err)
 		}
 		for _, systemSetting := range systemSettingList {
+			if systemSetting.Name == api.SystemSettingServerID || systemSetting.Name == api.SystemSettingSecretSessionName {
+				continue
+			}
+
 			var value interface{}
 			err := json.Unmarshal([]byte(systemSetting.Value), &value)
 			if err != nil {
@@ -195,3 +201,43 @@ func (s *Server) registerSystemRoutes(g *echo.Group) {
 		return nil
 	})
 }
+
+func (s *Server) getSystemServerID(ctx context.Context) (string, error) {
+	serverIDKey := api.SystemSettingServerID
+	serverIDValue, err := s.Store.FindSystemSetting(ctx, &api.SystemSettingFind{
+		Name: &serverIDKey,
+	})
+	if err != nil && common.ErrorCode(err) != common.NotFound {
+		return "", err
+	}
+	if serverIDValue == nil || serverIDValue.Value == "" {
+		serverIDValue, err = s.Store.UpsertSystemSetting(ctx, &api.SystemSettingUpsert{
+			Name:  serverIDKey,
+			Value: uuid.NewString(),
+		})
+		if err != nil {
+			return "", err
+		}
+	}
+	return serverIDValue.Value, nil
+}
+
+func (s *Server) getSystemSecretSessionName(ctx context.Context) (string, error) {
+	secretSessionNameKey := api.SystemSettingSecretSessionName
+	secretSessionNameValue, err := s.Store.FindSystemSetting(ctx, &api.SystemSettingFind{
+		Name: &secretSessionNameKey,
+	})
+	if err != nil && common.ErrorCode(err) != common.NotFound {
+		return "", err
+	}
+	if secretSessionNameValue == nil || secretSessionNameValue.Value == "" {
+		secretSessionNameValue, err = s.Store.UpsertSystemSetting(ctx, &api.SystemSettingUpsert{
+			Name:  secretSessionNameKey,
+			Value: uuid.NewString(),
+		})
+		if err != nil {
+			return "", err
+		}
+	}
+	return secretSessionNameValue.Value, nil
+}