Files
SharedClassManager/backend-go/pkg/jwt/jwt.go
canglan d6dec878bd feat: 多班级版 v2.0 - Go后端重写 + 43轮代码审查
- 后端从 Python FastAPI 重写为 Go Gin(端口 56789)
- 多班级完全隔离
- 超级管理员独立登录
- 课代表作业管理、排行榜分项排行
- 角色加减分上下限可配置
- 家长改密功能(可开关)
- 周度/月度重置功能
- MySQL 5.7 兼容
- 43轮代码审查+全部修复
- Apache 2.0 许可证
2026-06-22 10:06:10 +08:00

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// ===========================================
// 多班级版班级管理系统 - Go 后端
//
// 开发者: Canglan
// 联系方式: admin@sea-studio.top
// 版权归属: Sea Network Technology Studio
// 许可证: Apache License 2.0
//
// 版权所有 © Sea Network Technology Studio
// ===========================================
package jwt
import (
"fmt"
"time"
goJwt "github.com/golang-jwt/jwt/v5"
"hz-gitea.sea-studio.top/canglan/SharedClassManager/internal/config"
)
// getSigningMethod 根据配置返回对应的签名算法
func getSigningMethod(algorithm string) goJwt.SigningMethod {
switch algorithm {
case "HS384":
return goJwt.SigningMethodHS384
case "HS512":
return goJwt.SigningMethodHS512
default:
return goJwt.SigningMethodHS256
}
}
// Claims JWT 载荷结构(与 Python 版完全兼容)
type Claims struct {
UserID int `json:"user_id"`
Username string `json:"username"`
UserType string `json:"user_type"`
StudentID *int `json:"student_id"`
Role string `json:"role"`
RealName string `json:"real_name"`
ClassID *int `json:"class_id"`
NeedChangePassword bool `json:"need_change_password"`
goJwt.RegisteredClaims
}
// CreateToken 创建 JWT Token
func CreateToken(userID int, username, userType string, studentID *int, role, realName string, classID *int, needChangePassword bool) (string, error) {
now := time.Now()
cfg := config.AppConfig
claims := Claims{
UserID: userID,
Username: username,
UserType: userType,
StudentID: studentID,
Role: role,
RealName: realName,
ClassID: classID,
NeedChangePassword: needChangePassword,
RegisteredClaims: goJwt.RegisteredClaims{
ExpiresAt: goJwt.NewNumericDate(now.Add(time.Duration(cfg.JWTExpireMinutes) * time.Minute)),
IssuedAt: goJwt.NewNumericDate(now),
Issuer: cfg.AppName,
},
}
token := goJwt.NewWithClaims(getSigningMethod(cfg.JWTAlgorithm), claims)
return token.SignedString([]byte(cfg.JWTSecretKey))
}
// VerifyToken 验证 JWT Token返回解析后的载荷
func VerifyToken(tokenStr string) (*Claims, error) {
cfg := config.AppConfig
token, err := goJwt.ParseWithClaims(tokenStr, &Claims{}, func(t *goJwt.Token) (interface{}, error) {
if _, ok := t.Method.(*goJwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("不支持的签名算法: %v", t.Header["alg"])
}
return []byte(cfg.JWTSecretKey), nil
})
if err != nil {
return nil, fmt.Errorf("token 验证失败: %w", err)
}
claims, ok := token.Claims.(*Claims)
if !ok || !token.Valid {
return nil, fmt.Errorf("token 无效")
}
return claims, nil
}