增加session验证

This commit is contained in:
张超
2025-06-13 08:59:01 +08:00
parent 7913a2b381
commit 67c85327ee
8 changed files with 201 additions and 207 deletions

View File

@@ -1,90 +0,0 @@
package jwt
import (
"errors"
"fmt"
"net/http"
"strings"
"time"
"go_blog/models"
"github.com/gin-gonic/gin"
"github.com/golang-jwt/jwt/v5"
)
// 定义 JWT 密钥(从配置文件读取)
// var jwtSecret = []byte(config.GetJWTSecret())
var jwtSecret = []byte("your-hardcoded-secret-key")
// CustomClaims 自定义 JWT 载荷(包含用户 ID
type CustomClaims struct {
UserID uint `json:"user_id"`
jwt.RegisteredClaims
}
// GenerateToken 生成 JWT 令牌
func GenerateToken(user *models.Account) (string, error) {
expiresAt := jwt.NewNumericDate(time.Now().Add(24 * time.Hour)) // 令牌有效期 24 小时
claims := CustomClaims{
UserID: uint(user.ID),
RegisteredClaims: jwt.RegisteredClaims{
ExpiresAt: expiresAt,
Issuer: "go_blog",
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
return token.SignedString(jwtSecret)
}
// VerifyToken 验证 JWT 令牌并返回用户信息
func VerifyToken(tokenStr string) (*models.Account, error) { // 修改返回类型为 *models.Account
token, err := jwt.ParseWithClaims(tokenStr, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
return jwtSecret, nil
})
if err != nil {
return nil, err
}
if claims, ok := token.Claims.(*CustomClaims); ok && token.Valid {
return models.GetAccountByID(claims.UserID) // 假设 models 包新增 GetAccountByID 方法
}
return nil, errors.New("invalid token")
}
// AuthRequired Gin 中间件:验证 JWT 令牌
func AuthRequired() gin.HandlerFunc {
return func(c *gin.Context) {
// 从请求头获取 Authorization 字段格式Bearer <token>
authHeader := c.GetHeader("Authorization")
if authHeader == "" {
c.JSON(http.StatusUnauthorized, gin.H{"error": "请提供认证令牌"})
c.Abort()
return
}
// 解析令牌
parts := strings.SplitN(authHeader, " ", 2)
if len(parts) != 2 || parts[0] != "Bearer" {
c.JSON(http.StatusUnauthorized, gin.H{"error": "令牌格式错误(应为 Bearer <token>"})
c.Abort()
return
}
// 验证令牌并获取用户
user, err := VerifyToken(parts[1])
if err != nil {
c.JSON(http.StatusUnauthorized, gin.H{"error": "无效或过期的令牌: " + err.Error()})
c.Abort()
return
}
// 将用户信息存入上下文(后续路由可通过 c.Get("user") 获取)
c.Set("user", user)
c.Next()
}
}