Add json exp (#699)

* Add json exp

* Add json exp and add gen jwt token

* Gen seahub and notif jwt token

* Add exp for gen jwt token

* Delete gen_jwt_token API

* Delete set exp to 72 hour

---------

Co-authored-by: 杨赫然 <heran.yang@seafile.com>

fileserver/utils/utils.go

@@ -1,7 +1,12 @@
 package utils
 
 import (
+	"fmt"
+	"time"
+
+	jwt "github.com/golang-jwt/jwt/v5"
 	"github.com/google/uuid"
+	"github.com/haiwen/seafile-server/fileserver/option"
 )
 
 func IsValidUUID(u string) bool {
@@ -22,3 +27,55 @@ func IsObjectIDValid(objID string) bool {
 	}
 	return true
 }
+
+type SeahubClaims struct {
+	Exp        int64 `json:"exp"`
+	IsInternal bool  `json:"is_internal"`
+	jwt.RegisteredClaims
+}
+
+func (*SeahubClaims) Valid() error {
+	return nil
+}
+
+func GenSeahubJWTToken() (string, error) {
+	claims := new(SeahubClaims)
+	claims.Exp = time.Now().Add(time.Second * 300).Unix()
+	claims.IsInternal = true
+
+	token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), claims)
+	tokenString, err := token.SignedString([]byte(option.JWTPrivateKey))
+	if err != nil {
+		err := fmt.Errorf("failed to gen seahub jwt token: %w", err)
+		return "", err
+	}
+
+	return tokenString, nil
+}
+
+type MyClaims struct {
+	Exp      int64  `json:"exp"`
+	RepoID   string `json:"repo_id"`
+	UserName string `json:"username"`
+	jwt.RegisteredClaims
+}
+
+func (*MyClaims) Valid() error {
+	return nil
+}
+
+func GenNotifJWTToken(repoID, user string, exp int64) (string, error) {
+	claims := new(MyClaims)
+	claims.Exp = exp
+	claims.RepoID = repoID
+	claims.UserName = user
+
+	token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), claims)
+	tokenString, err := token.SignedString([]byte(option.JWTPrivateKey))
+	if err != nil {
+		err := fmt.Errorf("failed to gen jwt token for repo %s: %w", repoID, err)
+		return "", err
+	}
+
+	return tokenString, nil
+}