feat: persistent session name (#902)

* feat: persistent session name

* chore: update

api/system_setting.go

@@ -13,6 +13,8 @@ type SystemSettingName string
 const (
 	// SystemSettingServerID is the key type of server id.
 	SystemSettingServerID SystemSettingName = "serverId"
+	// SystemSettingSecretSessionName is the key type of secret session name.
+	SystemSettingSecretSessionName SystemSettingName = "secretSessionName"
 	// SystemSettingAllowSignUpName is the key type of allow signup setting.
 	SystemSettingAllowSignUpName SystemSettingName = "allowSignUp"
 	// SystemSettingAdditionalStyleName is the key type of additional style.
@@ -43,6 +45,8 @@ func (key SystemSettingName) String() string {
 	switch key {
 	case SystemSettingServerID:
 		return "serverId"
+	case SystemSettingSecretSessionName:
+		return "secretSessionName"
 	case SystemSettingAllowSignUpName:
 		return "allowSignUp"
 	case SystemSettingAdditionalStyleName:

bin/server/main.go

@@ -4,15 +4,13 @@ import (
 	"os"
 
 	_ "github.com/mattn/go-sqlite3"
+	"github.com/pkg/errors"
 
 	"context"
 	"fmt"
 
 	"github.com/usememos/memos/server"
 	"github.com/usememos/memos/server/profile"
-	"github.com/usememos/memos/store"
-
-	DB "github.com/usememos/memos/store/db"
 )
 
 const (
@@ -40,20 +38,11 @@ func run() error {
 	println("version:", profile.Version)
 	println("---")
 
-	db := DB.NewDB(profile)
-	if err := db.Open(ctx); err != nil {
-		return fmt.Errorf("cannot open db: %w", err)
+	serverInstance, err := server.NewServer(ctx, profile)
+	if err != nil {
+		return errors.Wrap(err, "failed to start server")
 	}
 
-	serverInstance := server.NewServer(profile)
-	storeInstance := store.New(db.Db, profile)
-	serverInstance.Store = storeInstance
-
-	metricCollector := server.NewMetricCollector(profile, storeInstance)
-	// Disable metrics collector.
-	metricCollector.Enabled = false
-	serverInstance.Collector = &metricCollector
-
 	println(greetingBanner)
 	fmt.Printf("Version %s has started at :%d\n", profile.Version, profile.Port)
 	return serverInstance.Run(ctx)

go.mod

@@ -16,7 +16,7 @@ require github.com/labstack/echo/v4 v4.9.0
 require (
 	github.com/VictoriaMetrics/fastcache v1.10.0
 	github.com/gorilla/feeds v1.1.1
-	github.com/gorilla/securecookie v1.1.1
+	github.com/gorilla/securecookie v1.1.1 // indirect
 	github.com/gorilla/sessions v1.2.1
 	github.com/labstack/echo-contrib v0.13.0
 	github.com/stretchr/testify v1.8.1

server/server.go

@@ -6,14 +6,12 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/google/uuid"
 	"github.com/pkg/errors"
 	"github.com/usememos/memos/api"
-	"github.com/usememos/memos/common"
 	"github.com/usememos/memos/server/profile"
 	"github.com/usememos/memos/store"
+	"github.com/usememos/memos/store/db"
 
-	"github.com/gorilla/securecookie"
 	"github.com/gorilla/sessions"
 	"github.com/labstack/echo-contrib/session"
 	"github.com/labstack/echo/v4"
@@ -23,16 +21,13 @@ import (
 type Server struct {
 	e *echo.Echo
 
-	ID string
-
+	ID        string
+	Profile   *profile.Profile
+	Store     *store.Store
 	Collector *MetricCollector
-
-	Profile *profile.Profile
-
-	Store *store.Store
 }
 
-func NewServer(profile *profile.Profile) *Server {
+func NewServer(ctx context.Context, profile *profile.Profile) (*Server, error) {
 	e := echo.New()
 	e.Debug = true
 	e.HideBanner = true
@@ -43,6 +38,19 @@ func NewServer(profile *profile.Profile) *Server {
 		Profile: profile,
 	}
 
+	db := db.NewDB(profile)
+	if err := db.Open(ctx); err != nil {
+		return nil, errors.Wrap(err, "cannot open db")
+	}
+
+	storeInstance := store.New(db.DBInstance, profile)
+	s.Store = storeInstance
+
+	metricCollector := NewMetricCollector(profile, storeInstance)
+	// Disable metrics collector.
+	metricCollector.Enabled = false
+	s.Collector = &metricCollector
+
 	e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
 		Format: `{"time":"${time_rfc3339}",` +
 			`"method":"${method}","uri":"${uri}",` +
@@ -68,14 +76,22 @@ func NewServer(profile *profile.Profile) *Server {
 		Timeout:      30 * time.Second,
 	}))
 
-	embedFrontend(e)
+	serverID, err := s.getSystemServerID(ctx)
+	if err != nil {
+		return nil, err
+	}
+	s.ID = serverID
 
-	// In dev mode, set the const secret key to make signin session persistence.
-	secret := []byte("usememos")
+	secretSessionName := "usememos"
 	if profile.Mode == "prod" {
-		secret = securecookie.GenerateRandomKey(16)
+		secretSessionName, err = s.getSystemSecretSessionName(ctx)
+		if err != nil {
+			return nil, err
+		}
 	}
-	e.Use(session.Middleware(sessions.NewCookieStore(secret)))
+	e.Use(session.Middleware(sessions.NewCookieStore([]byte(secretSessionName))))
+
+	embedFrontend(e)
 
 	rootGroup := e.Group("")
 	s.registerRSSRoutes(rootGroup)
@@ -99,28 +115,10 @@ func NewServer(profile *profile.Profile) *Server {
 	s.registerResourceRoutes(apiGroup)
 	s.registerTagRoutes(apiGroup)
 
-	return s
+	return s, nil
 }
 
 func (s *Server) Run(ctx context.Context) 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
-		}
-	}
-	s.ID = serverIDValue.Value
-
 	if err := s.createServerStartActivity(ctx); err != nil {
 		return errors.Wrap(err, "failed to create activity")
 	}

server/system.go

 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
+}

store/db/db.go

@@ -24,8 +24,8 @@ var seedFS embed.FS
 
 type DB struct {
 	// sqlite db connection instance
-	Db      *sql.DB
-	profile *profile.Profile
+	DBInstance *sql.DB
+	profile    *profile.Profile
 }
 
 // NewDB returns a new instance of DB associated with the given datasource name.
@@ -47,7 +47,7 @@ func (db *DB) Open(ctx context.Context) (err error) {
 	if err != nil {
 		return fmt.Errorf("failed to open db with dsn: %s, err: %w", db.profile.DSN, err)
 	}
-	db.Db = sqliteDB
+	db.DBInstance = sqliteDB
 
 	if db.profile.Mode == "dev" {
 		// In dev mode, we should migrate and seed the database.
@@ -156,7 +156,7 @@ func (db *DB) applyMigrationForMinorVersion(ctx context.Context, minorVersion st
 		}
 	}
 
-	tx, err := db.Db.Begin()
+	tx, err := db.DBInstance.Begin()
 	if err != nil {
 		return err
 	}
@@ -197,7 +197,7 @@ func (db *DB) seed(ctx context.Context) error {
 
 // execute runs a single SQL statement within a transaction.
 func (db *DB) execute(ctx context.Context, stmt string) error {
-	tx, err := db.Db.Begin()
+	tx, err := db.DBInstance.Begin()
 	if err != nil {
 		return err
 	}

store/db/migration_history.go

@@ -20,7 +20,7 @@ type MigrationHistoryFind struct {
 }
 
 func (db *DB) FindMigrationHistory(ctx context.Context, find *MigrationHistoryFind) (*MigrationHistory, error) {
-	tx, err := db.Db.BeginTx(ctx, nil)
+	tx, err := db.DBInstance.BeginTx(ctx, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -40,7 +40,7 @@ func (db *DB) FindMigrationHistory(ctx context.Context, find *MigrationHistoryFi
 }
 
 func (db *DB) UpsertMigrationHistory(ctx context.Context, upsert *MigrationHistoryUpsert) (*MigrationHistory, error) {
-	tx, err := db.Db.BeginTx(ctx, nil)
+	tx, err := db.DBInstance.BeginTx(ctx, nil)
 	if err != nil {
 		return nil, err
 	}