chore: update auth middleware (#2057)

* chore: update auth middleware

* chore: update

* chore: update

api/auth/auth.go

@@ -0,0 +1,27 @@
+package auth
+
+import (
+	"time"
+)
+
+const (
+	// The key name used to store user id in the context
+	// user id is extracted from the jwt token subject field.
+	UserIDContextKey = "user-id"
+	// issuer is the issuer of the jwt token.
+	Issuer = "memos"
+	// Signing key section. For now, this is only used for signing, not for verifying since we only
+	// have 1 version. But it will be used to maintain backward compatibility if we change the signing mechanism.
+	KeyID = "v1"
+	// AccessTokenAudienceName is the audience name of the access token.
+	AccessTokenAudienceName = "user.access-token"
+	AccessTokenDuration     = 7 * 24 * time.Hour
+
+	// CookieExpDuration expires slightly earlier than the jwt expiration. Client would be logged out if the user
+	// cookie expires, thus the client would always logout first before attempting to make a request with the expired jwt.
+	// Suppose we have a valid refresh token, we will refresh the token in cases:
+	// 1. The access token has already expired, we refresh the token so that the ongoing request can pass through.
+	CookieExpDuration = AccessTokenDuration - 1*time.Minute
+	// AccessTokenCookieName is the cookie name of access token.
+	AccessTokenCookieName = "memos.access-token"
+)

api/v1/auth.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
 	"github.com/usememos/memos/common/util"
 	"github.com/usememos/memos/plugin/idp"
 	"github.com/usememos/memos/plugin/idp/oauth2"
@@ -77,7 +76,7 @@ func (s *APIV1Service) registerAuthRoutes(g *echo.Group) {
 			return echo.NewHTTPError(http.StatusUnauthorized, "Incorrect login credentials, please try again")
 		}
 
-		if err := auth.GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
+		if err := GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate tokens").SetInternal(err)
 		}
 		if err := s.createAuthSignInActivity(c, user); err != nil {
@@ -165,7 +164,7 @@ func (s *APIV1Service) registerAuthRoutes(g *echo.Group) {
 			return echo.NewHTTPError(http.StatusForbidden, fmt.Sprintf("User has been archived with username %s", userInfo.Identifier))
 		}
 
-		if err := auth.GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
+		if err := GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate tokens").SetInternal(err)
 		}
 		if err := s.createAuthSignInActivity(c, user); err != nil {
@@ -231,7 +230,7 @@ func (s *APIV1Service) registerAuthRoutes(g *echo.Group) {
 		if err != nil {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create user").SetInternal(err)
 		}
-		if err := auth.GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
+		if err := GenerateTokensAndSetCookies(c, user, s.Secret); err != nil {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate tokens").SetInternal(err)
 		}
 		if err := s.createAuthSignUpActivity(c, user); err != nil {
@@ -244,7 +243,7 @@ func (s *APIV1Service) registerAuthRoutes(g *echo.Group) {
 
 	// POST /auth/signout - Sign out.
 	g.POST("/auth/signout", func(c echo.Context) error {
-		auth.RemoveTokensAndCookies(c)
+		RemoveTokensAndCookies(c)
 		return c.JSON(http.StatusOK, true)
 	})
 }

api/v1/auth/auth.go

@@ -1,132 +0,0 @@
-package auth
-
-import (
-	"net/http"
-	"strconv"
-	"time"
-
-	"github.com/golang-jwt/jwt/v4"
-	"github.com/labstack/echo/v4"
-	"github.com/pkg/errors"
-	"github.com/usememos/memos/store"
-)
-
-const (
-	// The key name used to store user id in the context
-	// user id is extracted from the jwt token subject field.
-	UserIDContextKey = "user-id"
-	// issuer is the issuer of the jwt token.
-	issuer = "memos"
-	// Signing key section. For now, this is only used for signing, not for verifying since we only
-	// have 1 version. But it will be used to maintain backward compatibility if we change the signing mechanism.
-	keyID = "v1"
-	// AccessTokenAudienceName is the audience name of the access token.
-	AccessTokenAudienceName = "user.access-token"
-	// RefreshTokenAudienceName is the audience name of the refresh token.
-	RefreshTokenAudienceName = "user.refresh-token"
-	apiTokenDuration         = 2 * time.Hour
-	accessTokenDuration      = 24 * time.Hour
-	refreshTokenDuration     = 7 * 24 * time.Hour
-
-	// CookieExpDuration expires slightly earlier than the jwt expiration. Client would be logged out if the user
-	// cookie expires, thus the client would always logout first before attempting to make a request with the expired jwt.
-	// Suppose we have a valid refresh token, we will refresh the token in cases:
-	// 1. The access token has already expired, we refresh the token so that the ongoing request can pass through.
-	CookieExpDuration = refreshTokenDuration - 1*time.Minute
-	// AccessTokenCookieName is the cookie name of access token.
-	AccessTokenCookieName = "memos.access-token"
-	// RefreshTokenCookieName is the cookie name of refresh token.
-	RefreshTokenCookieName = "memos.refresh-token"
-)
-
-type claimsMessage struct {
-	Name string `json:"name"`
-	jwt.RegisteredClaims
-}
-
-// GenerateAPIToken generates an API token.
-func GenerateAPIToken(userName string, userID int, secret string) (string, error) {
-	expirationTime := time.Now().Add(apiTokenDuration)
-	return generateToken(userName, userID, AccessTokenAudienceName, expirationTime, []byte(secret))
-}
-
-// GenerateAccessToken generates an access token for web.
-func GenerateAccessToken(userName string, userID int, secret string) (string, error) {
-	expirationTime := time.Now().Add(accessTokenDuration)
-	return generateToken(userName, userID, AccessTokenAudienceName, expirationTime, []byte(secret))
-}
-
-// GenerateRefreshToken generates a refresh token for web.
-func GenerateRefreshToken(userName string, userID int, secret string) (string, error) {
-	expirationTime := time.Now().Add(refreshTokenDuration)
-	return generateToken(userName, userID, RefreshTokenAudienceName, expirationTime, []byte(secret))
-}
-
-// GenerateTokensAndSetCookies generates jwt token and saves it to the http-only cookie.
-func GenerateTokensAndSetCookies(c echo.Context, user *store.User, secret string) error {
-	accessToken, err := GenerateAccessToken(user.Username, user.ID, secret)
-	if err != nil {
-		return errors.Wrap(err, "failed to generate access token")
-	}
-
-	cookieExp := time.Now().Add(CookieExpDuration)
-	setTokenCookie(c, AccessTokenCookieName, accessToken, cookieExp)
-
-	// We generate here a new refresh token and saving it to the cookie.
-	refreshToken, err := GenerateRefreshToken(user.Username, user.ID, secret)
-	if err != nil {
-		return errors.Wrap(err, "failed to generate refresh token")
-	}
-	setTokenCookie(c, RefreshTokenCookieName, refreshToken, cookieExp)
-
-	return nil
-}
-
-// RemoveTokensAndCookies removes the jwt token and refresh token from the cookies.
-func RemoveTokensAndCookies(c echo.Context) {
-	// We set the expiration time to the past, so that the cookie will be removed.
-	cookieExp := time.Now().Add(-1 * time.Hour)
-	setTokenCookie(c, AccessTokenCookieName, "", cookieExp)
-	setTokenCookie(c, RefreshTokenCookieName, "", cookieExp)
-}
-
-// setTokenCookie sets the token to the cookie.
-func setTokenCookie(c echo.Context, name, token string, expiration time.Time) {
-	cookie := new(http.Cookie)
-	cookie.Name = name
-	cookie.Value = token
-	cookie.Expires = expiration
-	cookie.Path = "/"
-	// Http-only helps mitigate the risk of client side script accessing the protected cookie.
-	cookie.HttpOnly = true
-	cookie.SameSite = http.SameSiteStrictMode
-	c.SetCookie(cookie)
-}
-
-// generateToken generates a jwt token.
-func generateToken(username string, userID int, aud string, expirationTime time.Time, secret []byte) (string, error) {
-	// Create the JWT claims, which includes the username and expiry time.
-	claims := &claimsMessage{
-		Name: username,
-		RegisteredClaims: jwt.RegisteredClaims{
-			Audience: jwt.ClaimStrings{aud},
-			// In JWT, the expiry time is expressed as unix milliseconds.
-			ExpiresAt: jwt.NewNumericDate(expirationTime),
-			IssuedAt:  jwt.NewNumericDate(time.Now()),
-			Issuer:    issuer,
-			Subject:   strconv.Itoa(userID),
-		},
-	}
-
-	// Declare the token with the HS256 algorithm used for signing, and the claims.
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	token.Header["kid"] = keyID
-
-	// Create the JWT string.
-	tokenString, err := token.SignedString(secret)
-	if err != nil {
-		return "", err
-	}
-
-	return tokenString, nil
-}

api/v1/idp.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/jwt.go

@@ -5,22 +5,86 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/golang-jwt/jwt/v4"
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/common/util"
 	"github.com/usememos/memos/store"
 )
 
-// Claims creates a struct that will be encoded to a JWT.
-// We add jwt.RegisteredClaims as an embedded type, to provide fields such as name.
-type Claims struct {
+type claimsMessage struct {
 	Name string `json:"name"`
 	jwt.RegisteredClaims
 }
 
+// GenerateAccessToken generates an access token for web.
+func GenerateAccessToken(username string, userID int, secret string) (string, error) {
+	expirationTime := time.Now().Add(auth.AccessTokenDuration)
+	return generateToken(username, userID, auth.AccessTokenAudienceName, expirationTime, []byte(secret))
+}
+
+// GenerateTokensAndSetCookies generates jwt token and saves it to the http-only cookie.
+func GenerateTokensAndSetCookies(c echo.Context, user *store.User, secret string) error {
+	accessToken, err := GenerateAccessToken(user.Username, user.ID, secret)
+	if err != nil {
+		return errors.Wrap(err, "failed to generate access token")
+	}
+
+	cookieExp := time.Now().Add(auth.CookieExpDuration)
+	setTokenCookie(c, auth.AccessTokenCookieName, accessToken, cookieExp)
+	return nil
+}
+
+// RemoveTokensAndCookies removes the jwt token and refresh token from the cookies.
+func RemoveTokensAndCookies(c echo.Context) {
+	cookieExp := time.Now().Add(-1 * time.Hour)
+	setTokenCookie(c, auth.AccessTokenCookieName, "", cookieExp)
+}
+
+// setTokenCookie sets the token to the cookie.
+func setTokenCookie(c echo.Context, name, token string, expiration time.Time) {
+	cookie := new(http.Cookie)
+	cookie.Name = name
+	cookie.Value = token
+	cookie.Expires = expiration
+	cookie.Path = "/"
+	// Http-only helps mitigate the risk of client side script accessing the protected cookie.
+	cookie.HttpOnly = true
+	cookie.SameSite = http.SameSiteStrictMode
+	c.SetCookie(cookie)
+}
+
+// generateToken generates a jwt token.
+func generateToken(username string, userID int, aud string, expirationTime time.Time, secret []byte) (string, error) {
+	// Create the JWT claims, which includes the username and expiry time.
+	claims := &claimsMessage{
+		Name: username,
+		RegisteredClaims: jwt.RegisteredClaims{
+			Audience: jwt.ClaimStrings{aud},
+			// In JWT, the expiry time is expressed as unix milliseconds.
+			ExpiresAt: jwt.NewNumericDate(expirationTime),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			Issuer:    auth.Issuer,
+			Subject:   strconv.Itoa(userID),
+		},
+	}
+
+	// Declare the token with the HS256 algorithm used for signing, and the claims.
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	token.Header["kid"] = auth.KeyID
+
+	// Create the JWT string.
+	tokenString, err := token.SignedString(secret)
+	if err != nil {
+		return "", err
+	}
+
+	return tokenString, nil
+}
+
 func extractTokenFromHeader(c echo.Context) (string, error) {
 	authHeader := c.Request().Header.Get("Authorization")
 	if authHeader == "" {
@@ -62,7 +126,8 @@ func audienceContains(audience jwt.ClaimStrings, token string) bool {
 // will try to generate new access token and refresh token.
 func JWTMiddleware(server *APIV1Service, next echo.HandlerFunc, secret string) echo.HandlerFunc {
 	return func(c echo.Context) error {
-		path := c.Path()
+		ctx := c.Request().Context()
+		path := c.Request().URL.Path
 		method := c.Request().Method
 
 		if server.defaultAuthSkipper(c) {
@@ -87,8 +152,8 @@ func JWTMiddleware(server *APIV1Service, next echo.HandlerFunc, secret string) e
 			return echo.NewHTTPError(http.StatusUnauthorized, "Missing access token")
 		}
 
-		claims := &Claims{}
-		accessToken, err := jwt.ParseWithClaims(token, claims, func(t *jwt.Token) (any, error) {
+		claims := &claimsMessage{}
+		_, err := jwt.ParseWithClaims(token, claims, func(t *jwt.Token) (any, error) {
 			if t.Method.Alg() != jwt.SigningMethodHS256.Name {
 				return nil, errors.Errorf("unexpected access token signing method=%v, expect %v", t.Header["alg"], jwt.SigningMethodHS256)
 			}
@@ -100,27 +165,15 @@ func JWTMiddleware(server *APIV1Service, next echo.HandlerFunc, secret string) e
 			return nil, errors.Errorf("unexpected access token kid=%v", t.Header["kid"])
 		})
 
-		generateToken := false
 		if err != nil {
-			var ve *jwt.ValidationError
-			if errors.As(err, &ve) {
-				// If expiration error is the only error, we will clear the err
-				// and generate new access token and refresh token
-				if ve.Errors == jwt.ValidationErrorExpired {
-					generateToken = true
-				}
-			} else {
-				auth.RemoveTokensAndCookies(c)
-				return echo.NewHTTPError(http.StatusUnauthorized, errors.Wrap(err, "Invalid or expired access token"))
-			}
+			RemoveTokensAndCookies(c)
+			return echo.NewHTTPError(http.StatusUnauthorized, errors.Wrap(err, "Invalid or expired access token"))
 		}
-
 		if !audienceContains(claims.Audience, auth.AccessTokenAudienceName) {
 			return echo.NewHTTPError(http.StatusUnauthorized, fmt.Sprintf("Invalid access token, audience mismatch, got %q, expected %q.", claims.Audience, auth.AccessTokenAudienceName))
 		}
 
 		// We either have a valid access token or we will attempt to generate new access token and refresh token
-		ctx := c.Request().Context()
 		userID, err := strconv.Atoi(claims.Subject)
 		if err != nil {
 			return echo.NewHTTPError(http.StatusUnauthorized, "Malformed ID in the token.")
@@ -137,59 +190,6 @@ func JWTMiddleware(server *APIV1Service, next echo.HandlerFunc, secret string) e
 			return echo.NewHTTPError(http.StatusUnauthorized, fmt.Sprintf("Failed to find user ID: %d", userID))
 		}
 
-		if generateToken {
-			generateTokenFunc := func() error {
-				rc, err := c.Cookie(auth.RefreshTokenCookieName)
-				if err != nil {
-					return echo.NewHTTPError(http.StatusUnauthorized, "Failed to generate access token. Missing refresh token.")
-				}
-
-				// Parses token and checks if it's valid.
-				refreshTokenClaims := &Claims{}
-				refreshToken, err := jwt.ParseWithClaims(rc.Value, refreshTokenClaims, func(t *jwt.Token) (any, error) {
-					if t.Method.Alg() != jwt.SigningMethodHS256.Name {
-						return nil, errors.Errorf("unexpected refresh token signing method=%v, expected %v", t.Header["alg"], jwt.SigningMethodHS256)
-					}
-
-					if kid, ok := t.Header["kid"].(string); ok {
-						if kid == "v1" {
-							return []byte(secret), nil
-						}
-					}
-					return nil, errors.Errorf("unexpected refresh token kid=%v", t.Header["kid"])
-				})
-				if err != nil {
-					if err == jwt.ErrSignatureInvalid {
-						return echo.NewHTTPError(http.StatusUnauthorized, "Failed to generate access token. Invalid refresh token signature.")
-					}
-					return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprintf("Server error to refresh expired token. User Id %d", userID)).SetInternal(err)
-				}
-
-				if !audienceContains(refreshTokenClaims.Audience, auth.RefreshTokenAudienceName) {
-					return echo.NewHTTPError(http.StatusUnauthorized,
-						fmt.Sprintf("Invalid refresh token, audience mismatch, got %q, expected %q. you may send request to the wrong environment",
-							refreshTokenClaims.Audience,
-							auth.RefreshTokenAudienceName,
-						))
-				}
-
-				// If we have a valid refresh token, we will generate new access token and refresh token
-				if refreshToken != nil && refreshToken.Valid {
-					if err := auth.GenerateTokensAndSetCookies(c, user, secret); err != nil {
-						return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprintf("Server error to refresh expired token. User Id %d", userID)).SetInternal(err)
-					}
-				}
-
-				return nil
-			}
-
-			// It may happen that we still have a valid access token, but we encounter issue when trying to generate new token
-			// In such case, we won't return the error.
-			if err := generateTokenFunc(); err != nil && !accessToken.Valid {
-				return err
-			}
-		}
-
 		// Stores userID into context.
 		c.Set(auth.UserIDContextKey, userID)
 		return next(c)

api/v1/memo.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/memo_organizer.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/memo_resource.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/resource.go

@@ -21,7 +21,7 @@ import (
 	"github.com/disintegration/imaging"
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/common/log"
 	"github.com/usememos/memos/common/util"
 	"github.com/usememos/memos/plugin/storage/s3"

api/v1/shortcut.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/storage.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/system.go

@@ -5,7 +5,7 @@ import (
 	"net/http"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/common/log"
 	"github.com/usememos/memos/server/profile"
 	"github.com/usememos/memos/store"

api/v1/system_setting.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 )
 

api/v1/tag.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 	"golang.org/x/exp/slices"
 )

api/v1/user.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/labstack/echo/v4"
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/common/util"
 	"github.com/usememos/memos/store"
 	"golang.org/x/crypto/bcrypt"

api/v1/user_setting.go

@@ -6,7 +6,7 @@ import (
 	"net/http"
 
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/store"
 	"golang.org/x/exp/slices"
 )

api/v2/auth/auth.go

@@ -1,297 +0,0 @@
-// Package auth handles the auth of gRPC server.
-package auth
-
-import (
-	"context"
-	"errors"
-	"net/http"
-	"strconv"
-	"strings"
-	"time"
-
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/metadata"
-	"google.golang.org/grpc/status"
-
-	"github.com/golang-jwt/jwt/v4"
-	errs "github.com/pkg/errors"
-
-	"github.com/usememos/memos/store"
-)
-
-// ContextKey is the key type of context value.
-type ContextKey int
-
-const (
-	// The key name used to store user id in the context
-	// user id is extracted from the jwt token subject field.
-	UserIDContextKey ContextKey = iota
-	// issuer is the issuer of the jwt token.
-	issuer = "memos"
-	// Signing key section. For now, this is only used for signing, not for verifying since we only
-	// have 1 version. But it will be used to maintain backward compatibility if we change the signing mechanism.
-	keyID = "v1"
-	// AccessTokenAudienceName is the audience name of the access token.
-	AccessTokenAudienceName = "user.access-token"
-	// RefreshTokenAudienceName is the audience name of the refresh token.
-	RefreshTokenAudienceName = "user.refresh-token"
-	apiTokenDuration         = 2 * time.Hour
-	accessTokenDuration      = 24 * time.Hour
-	refreshTokenDuration     = 7 * 24 * time.Hour
-
-	// CookieExpDuration expires slightly earlier than the jwt expiration. Client would be logged out if the user
-	// cookie expires, thus the client would always logout first before attempting to make a request with the expired jwt.
-	// Suppose we have a valid refresh token, we will refresh the token in cases:
-	// 1. The access token has already expired, we refresh the token so that the ongoing request can pass through.
-	CookieExpDuration = refreshTokenDuration - 1*time.Minute
-	// AccessTokenCookieName is the cookie name of access token.
-	AccessTokenCookieName = "memos.access-token"
-	// RefreshTokenCookieName is the cookie name of refresh token.
-	RefreshTokenCookieName = "memos.refresh-token"
-)
-
-// GRPCAuthInterceptor is the auth interceptor for gRPC server.
-type GRPCAuthInterceptor struct {
-	store  *store.Store
-	secret string
-}
-
-// NewGRPCAuthInterceptor returns a new API auth interceptor.
-func NewGRPCAuthInterceptor(store *store.Store, secret string) *GRPCAuthInterceptor {
-	return &GRPCAuthInterceptor{
-		store:  store,
-		secret: secret,
-	}
-}
-
-// AuthenticationInterceptor is the unary interceptor for gRPC API.
-func (in *GRPCAuthInterceptor) AuthenticationInterceptor(ctx context.Context, request any, serverInfo *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
-	md, ok := metadata.FromIncomingContext(ctx)
-	if !ok {
-		return nil, status.Errorf(codes.Unauthenticated, "failed to parse metadata from incoming context")
-	}
-	accessTokenStr, refreshTokenStr, err := getTokenFromMetadata(md)
-	if err != nil {
-		return nil, status.Errorf(codes.Unauthenticated, err.Error())
-	}
-
-	userID, err := in.authenticate(ctx, accessTokenStr, refreshTokenStr)
-	if err != nil {
-		if IsAuthenticationAllowed(serverInfo.FullMethod) {
-			return handler(ctx, request)
-		}
-		return nil, err
-	}
-
-	// Stores userID into context.
-	childCtx := context.WithValue(ctx, UserIDContextKey, userID)
-	return handler(childCtx, request)
-}
-
-func (in *GRPCAuthInterceptor) authenticate(ctx context.Context, accessTokenStr, refreshTokenStr string) (int, error) {
-	if accessTokenStr == "" {
-		return 0, status.Errorf(codes.Unauthenticated, "access token not found")
-	}
-	claims := &claimsMessage{}
-	generateToken := false
-	accessToken, err := jwt.ParseWithClaims(accessTokenStr, claims, func(t *jwt.Token) (any, error) {
-		if t.Method.Alg() != jwt.SigningMethodHS256.Name {
-			return nil, status.Errorf(codes.Unauthenticated, "unexpected access token signing method=%v, expect %v", t.Header["alg"], jwt.SigningMethodHS256)
-		}
-		if kid, ok := t.Header["kid"].(string); ok {
-			if kid == "v1" {
-				return []byte(in.secret), nil
-			}
-		}
-		return nil, status.Errorf(codes.Unauthenticated, "unexpected access token kid=%v", t.Header["kid"])
-	})
-	if err != nil {
-		var ve *jwt.ValidationError
-		if errors.As(err, &ve) && ve.Errors == jwt.ValidationErrorExpired {
-			// If expiration error is the only error, we will clear the err
-			// and generate new access token and refresh token
-			if refreshTokenStr == "" {
-				return 0, status.Errorf(codes.Unauthenticated, "access token is expired")
-			}
-			generateToken = true
-		} else {
-			return 0, status.Errorf(codes.Unauthenticated, "failed to parse claim")
-		}
-	}
-	if !audienceContains(claims.Audience, AccessTokenAudienceName) {
-		return 0, status.Errorf(codes.Unauthenticated,
-			"invalid access token, audience mismatch, got %q, expected %q. you may send request to the wrong environment",
-			claims.Audience,
-			AccessTokenAudienceName,
-		)
-	}
-
-	userID, err := strconv.Atoi(claims.Subject)
-	if err != nil {
-		return 0, status.Errorf(codes.Unauthenticated, "malformed ID %q in the access token", claims.Subject)
-	}
-	user, err := in.store.GetUser(ctx, &store.FindUser{
-		ID: &userID,
-	})
-	if err != nil {
-		return 0, status.Errorf(codes.Unauthenticated, "failed to find user ID %q in the access token", userID)
-	}
-	if user == nil {
-		return 0, status.Errorf(codes.Unauthenticated, "user ID %q not exists in the access token", userID)
-	}
-	if user.RowStatus == store.Archived {
-		return 0, status.Errorf(codes.Unauthenticated, "user ID %q has been deactivated by administrators", userID)
-	}
-
-	if generateToken {
-		generateTokenFunc := func() error {
-			// Parses token and checks if it's valid.
-			refreshTokenClaims := &claimsMessage{}
-			refreshToken, err := jwt.ParseWithClaims(refreshTokenStr, refreshTokenClaims, func(t *jwt.Token) (any, error) {
-				if t.Method.Alg() != jwt.SigningMethodHS256.Name {
-					return nil, status.Errorf(codes.Unauthenticated, "unexpected refresh token signing method=%v, expected %v", t.Header["alg"], jwt.SigningMethodHS256)
-				}
-
-				if kid, ok := t.Header["kid"].(string); ok {
-					if kid == "v1" {
-						return []byte(in.secret), nil
-					}
-				}
-				return nil, errs.Errorf("unexpected refresh token kid=%v", t.Header["kid"])
-			})
-			if err != nil {
-				if err == jwt.ErrSignatureInvalid {
-					return errs.Errorf("failed to generate access token: invalid refresh token signature")
-				}
-				return errs.Errorf("Server error to refresh expired token, user ID %d", userID)
-			}
-
-			if !audienceContains(refreshTokenClaims.Audience, RefreshTokenAudienceName) {
-				return errs.Errorf("Invalid refresh token, audience mismatch, got %q, expected %q. you may send request to the wrong environment",
-					refreshTokenClaims.Audience,
-					RefreshTokenAudienceName,
-				)
-			}
-
-			// If we have a valid refresh token, we will generate new access token and refresh token
-			if refreshToken != nil && refreshToken.Valid {
-				if err := generateTokensAndSetCookies(ctx, user.Username, user.ID, in.secret); err != nil {
-					return errs.Wrapf(err, "failed to regenerate token")
-				}
-			}
-
-			return nil
-		}
-
-		// It may happen that we still have a valid access token, but we encounter issue when trying to generate new token
-		// In such case, we won't return the error.
-		if err := generateTokenFunc(); err != nil && !accessToken.Valid {
-			return 0, status.Errorf(codes.Unauthenticated, err.Error())
-		}
-	}
-	return userID, nil
-}
-
-func getTokenFromMetadata(md metadata.MD) (string, string, error) {
-	authorizationHeaders := md.Get("Authorization")
-	if len(md.Get("Authorization")) > 0 {
-		authHeaderParts := strings.Fields(authorizationHeaders[0])
-		if len(authHeaderParts) != 2 || strings.ToLower(authHeaderParts[0]) != "bearer" {
-			return "", "", errs.Errorf("authorization header format must be Bearer {token}")
-		}
-		return authHeaderParts[1], "", nil
-	}
-	// check the HTTP cookie
-	var accessToken, refreshToken string
-	for _, t := range append(md.Get("grpcgateway-cookie"), md.Get("cookie")...) {
-		header := http.Header{}
-		header.Add("Cookie", t)
-		request := http.Request{Header: header}
-		if v, _ := request.Cookie(AccessTokenCookieName); v != nil {
-			accessToken = v.Value
-		}
-		if v, _ := request.Cookie(RefreshTokenCookieName); v != nil {
-			refreshToken = v.Value
-		}
-	}
-	if accessToken != "" && refreshToken != "" {
-		return accessToken, refreshToken, nil
-	}
-	return "", "", nil
-}
-
-func audienceContains(audience jwt.ClaimStrings, token string) bool {
-	for _, v := range audience {
-		if v == token {
-			return true
-		}
-	}
-	return false
-}
-
-type claimsMessage struct {
-	Name string `json:"name"`
-	jwt.RegisteredClaims
-}
-
-// generateTokensAndSetCookies generates jwt token and saves it to the http-only cookie.
-func generateTokensAndSetCookies(ctx context.Context, username string, userID int, secret string) error {
-	accessToken, err := GenerateAccessToken(username, userID, secret)
-	if err != nil {
-		return errs.Wrap(err, "failed to generate access token")
-	}
-	// We generate here a new refresh token and saving it to the cookie.
-	refreshToken, err := GenerateRefreshToken(username, userID, secret)
-	if err != nil {
-		return errs.Wrap(err, "failed to generate refresh token")
-	}
-
-	if err := grpc.SetHeader(ctx, metadata.New(map[string]string{
-		AccessTokenCookieName:  accessToken,
-		RefreshTokenCookieName: refreshToken,
-	})); err != nil {
-		return errs.Wrapf(err, "failed to set grpc header")
-	}
-	return nil
-}
-
-// GenerateAccessToken generates an access token for web.
-func GenerateAccessToken(username string, userID int, secret string) (string, error) {
-	expirationTime := time.Now().Add(accessTokenDuration)
-	return generateToken(username, userID, AccessTokenAudienceName, expirationTime, []byte(secret))
-}
-
-// GenerateRefreshToken generates a refresh token for web.
-func GenerateRefreshToken(username string, userID int, secret string) (string, error) {
-	expirationTime := time.Now().Add(refreshTokenDuration)
-	return generateToken(username, userID, RefreshTokenAudienceName, expirationTime, []byte(secret))
-}
-
-// Pay attention to this function. It holds the main JWT token generation logic.
-func generateToken(username string, userID int, aud string, expirationTime time.Time, secret []byte) (string, error) {
-	// Create the JWT claims, which includes the username and expiry time.
-	claims := &claimsMessage{
-		Name: username,
-		RegisteredClaims: jwt.RegisteredClaims{
-			Audience: jwt.ClaimStrings{aud},
-			// In JWT, the expiry time is expressed as unix milliseconds.
-			ExpiresAt: jwt.NewNumericDate(expirationTime),
-			IssuedAt:  jwt.NewNumericDate(time.Now()),
-			Issuer:    issuer,
-			Subject:   strconv.Itoa(userID),
-		},
-	}
-
-	// Declare the token with the HS256 algorithm used for signing, and the claims.
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	token.Header["kid"] = keyID
-
-	// Create the JWT string.
-	tokenString, err := token.SignedString(secret)
-	if err != nil {
-		return "", err
-	}
-
-	return tokenString, nil
-}

api/v2/auth/config.go

@@ -1,15 +0,0 @@
-package auth
-
-import "strings"
-
-var authenticationAllowlistMethods = map[string]bool{
-	"/memos.api.v2.UserService/GetUser": true,
-}
-
-// IsAuthenticationAllowed returns whether the method is exempted from authentication.
-func IsAuthenticationAllowed(fullMethodName string) bool {
-	if strings.HasPrefix(fullMethodName, "/grpc.reflection") {
-		return true
-	}
-	return authenticationAllowlistMethods[fullMethodName]
-}

api/v2/jwt.go

@@ -0,0 +1,193 @@
+package v2
+
+import (
+	"context"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang-jwt/jwt/v4"
+	"github.com/pkg/errors"
+	"github.com/usememos/memos/api/auth"
+	"github.com/usememos/memos/store"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+var authenticationAllowlistMethods = map[string]bool{
+	"/memos.api.v2.UserService/GetUser": true,
+}
+
+// IsAuthenticationAllowed returns whether the method is exempted from authentication.
+func IsAuthenticationAllowed(fullMethodName string) bool {
+	if strings.HasPrefix(fullMethodName, "/grpc.reflection") {
+		return true
+	}
+	return authenticationAllowlistMethods[fullMethodName]
+}
+
+// ContextKey is the key type of context value.
+type ContextKey int
+
+const (
+	// The key name used to store user id in the context
+	// user id is extracted from the jwt token subject field.
+	UserIDContextKey ContextKey = iota
+)
+
+// GRPCAuthInterceptor is the auth interceptor for gRPC server.
+type GRPCAuthInterceptor struct {
+	store  *store.Store
+	secret string
+}
+
+// NewGRPCAuthInterceptor returns a new API auth interceptor.
+func NewGRPCAuthInterceptor(store *store.Store, secret string) *GRPCAuthInterceptor {
+	return &GRPCAuthInterceptor{
+		store:  store,
+		secret: secret,
+	}
+}
+
+// AuthenticationInterceptor is the unary interceptor for gRPC API.
+func (in *GRPCAuthInterceptor) AuthenticationInterceptor(ctx context.Context, request any, serverInfo *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
+	md, ok := metadata.FromIncomingContext(ctx)
+	if !ok {
+		return nil, status.Errorf(codes.Unauthenticated, "failed to parse metadata from incoming context")
+	}
+	accessTokenStr, err := getTokenFromMetadata(md)
+	if err != nil {
+		return nil, status.Errorf(codes.Unauthenticated, err.Error())
+	}
+
+	userID, err := in.authenticate(ctx, accessTokenStr)
+	if err != nil {
+		if IsAuthenticationAllowed(serverInfo.FullMethod) {
+			return handler(ctx, request)
+		}
+		return nil, err
+	}
+
+	// Stores userID into context.
+	childCtx := context.WithValue(ctx, UserIDContextKey, userID)
+	return handler(childCtx, request)
+}
+
+func (in *GRPCAuthInterceptor) authenticate(ctx context.Context, accessTokenStr string) (int, error) {
+	if accessTokenStr == "" {
+		return 0, status.Errorf(codes.Unauthenticated, "access token not found")
+	}
+	claims := &claimsMessage{}
+	_, err := jwt.ParseWithClaims(accessTokenStr, claims, func(t *jwt.Token) (any, error) {
+		if t.Method.Alg() != jwt.SigningMethodHS256.Name {
+			return nil, status.Errorf(codes.Unauthenticated, "unexpected access token signing method=%v, expect %v", t.Header["alg"], jwt.SigningMethodHS256)
+		}
+		if kid, ok := t.Header["kid"].(string); ok {
+			if kid == "v1" {
+				return []byte(in.secret), nil
+			}
+		}
+		return nil, status.Errorf(codes.Unauthenticated, "unexpected access token kid=%v", t.Header["kid"])
+	})
+	if err != nil {
+		return 0, status.Errorf(codes.Unauthenticated, "Invalid or expired access token")
+	}
+	if !audienceContains(claims.Audience, auth.AccessTokenAudienceName) {
+		return 0, status.Errorf(codes.Unauthenticated,
+			"invalid access token, audience mismatch, got %q, expected %q. you may send request to the wrong environment",
+			claims.Audience,
+			auth.AccessTokenAudienceName,
+		)
+	}
+
+	userID, err := strconv.Atoi(claims.Subject)
+	if err != nil {
+		return 0, status.Errorf(codes.Unauthenticated, "malformed ID %q in the access token", claims.Subject)
+	}
+	user, err := in.store.GetUser(ctx, &store.FindUser{
+		ID: &userID,
+	})
+	if err != nil {
+		return 0, status.Errorf(codes.Unauthenticated, "failed to find user ID %q in the access token", userID)
+	}
+	if user == nil {
+		return 0, status.Errorf(codes.Unauthenticated, "user ID %q not exists in the access token", userID)
+	}
+	if user.RowStatus == store.Archived {
+		return 0, status.Errorf(codes.Unauthenticated, "user ID %q has been deactivated by administrators", userID)
+	}
+
+	return userID, nil
+}
+
+func getTokenFromMetadata(md metadata.MD) (string, error) {
+	authorizationHeaders := md.Get("Authorization")
+	if len(md.Get("Authorization")) > 0 {
+		authHeaderParts := strings.Fields(authorizationHeaders[0])
+		if len(authHeaderParts) != 2 || strings.ToLower(authHeaderParts[0]) != "bearer" {
+			return "", errors.Errorf("authorization header format must be Bearer {token}")
+		}
+		return authHeaderParts[1], nil
+	}
+	// check the HTTP cookie
+	var accessToken string
+	for _, t := range append(md.Get("grpcgateway-cookie"), md.Get("cookie")...) {
+		header := http.Header{}
+		header.Add("Cookie", t)
+		request := http.Request{Header: header}
+		if v, _ := request.Cookie(auth.AccessTokenCookieName); v != nil {
+			accessToken = v.Value
+		}
+	}
+	return accessToken, nil
+}
+
+func audienceContains(audience jwt.ClaimStrings, token string) bool {
+	for _, v := range audience {
+		if v == token {
+			return true
+		}
+	}
+	return false
+}
+
+type claimsMessage struct {
+	Name string `json:"name"`
+	jwt.RegisteredClaims
+}
+
+// GenerateAccessToken generates an access token for web.
+func GenerateAccessToken(username string, userID int, secret string) (string, error) {
+	expirationTime := time.Now().Add(auth.AccessTokenDuration)
+	return generateToken(username, userID, auth.AccessTokenAudienceName, expirationTime, []byte(secret))
+}
+
+func generateToken(username string, userID int, aud string, expirationTime time.Time, secret []byte) (string, error) {
+	// Create the JWT claims, which includes the username and expiry time.
+	claims := &claimsMessage{
+		Name: username,
+		RegisteredClaims: jwt.RegisteredClaims{
+			Audience: jwt.ClaimStrings{aud},
+			// In JWT, the expiry time is expressed as unix milliseconds.
+			ExpiresAt: jwt.NewNumericDate(expirationTime),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			Issuer:    auth.Issuer,
+			Subject:   strconv.Itoa(userID),
+		},
+	}
+
+	// Declare the token with the HS256 algorithm used for signing, and the claims.
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	token.Header["kid"] = auth.KeyID
+
+	// Create the JWT string.
+	tokenString, err := token.SignedString(secret)
+	if err != nil {
+		return "", err
+	}
+
+	return tokenString, nil
+}

api/v2/user_service.go

@@ -3,7 +3,6 @@ package v2
 import (
 	"context"
 
-	"github.com/usememos/memos/api/v2/auth"
 	apiv2pb "github.com/usememos/memos/proto/gen/api/v2"
 	"github.com/usememos/memos/store"
 	"google.golang.org/grpc/codes"
@@ -46,7 +45,7 @@ func (s *UserService) GetUser(ctx context.Context, request *apiv2pb.GetUserReque
 		return nil, status.Errorf(codes.Internal, "failed to list user settings: %v", err)
 	}
 
-	userID, ok := ctx.Value(auth.UserIDContextKey).(int)
+	userID, ok := ctx.Value(UserIDContextKey).(int)
 	if ok && userID == int(userMessage.Id) {
 		for _, userSetting := range userSettings {
 			userMessage.Settings = append(userMessage.Settings, convertUserSettingFromStore(userSetting))

api/v2/v2.go

@@ -6,7 +6,6 @@ import (
 
 	grpcRuntime "github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"github.com/labstack/echo/v4"
-	"github.com/usememos/memos/api/v2/auth"
 	apiv2pb "github.com/usememos/memos/proto/gen/api/v2"
 	"github.com/usememos/memos/server/profile"
 	"github.com/usememos/memos/store"
@@ -24,7 +23,7 @@ type APIV2Service struct {
 }
 
 func NewAPIV2Service(secret string, profile *profile.Profile, store *store.Store, grpcServerPort int) *APIV2Service {
-	authProvider := auth.NewGRPCAuthInterceptor(store, secret)
+	authProvider := NewGRPCAuthInterceptor(store, secret)
 	grpcServer := grpc.NewServer(
 		grpc.ChainUnaryInterceptor(
 			authProvider.AuthenticationInterceptor,

test/server/server.go

@@ -11,7 +11,7 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
-	"github.com/usememos/memos/api/v1/auth"
+	"github.com/usememos/memos/api/auth"
 	"github.com/usememos/memos/server"
 	"github.com/usememos/memos/server/profile"
 	"github.com/usememos/memos/store"