add BAM

server/model/system/Jwt.go

@@ -0,0 +1,89 @@
+package system
+
+import (
+	"errors"
+	"fmt"
+	"github.com/golang-jwt/jwt/v5"
+	"log"
+	"server/config"
+	"server/plugin/common/util"
+	"server/plugin/db"
+	"time"
+)
+
+type UserClaims struct {
+	UserID   uint   `json:"userID"`
+	UserName string `json:"userName"`
+	jwt.RegisteredClaims
+}
+
+// GenToken 生成token
+func GenToken(userId uint, userName string) (string, error) {
+	uc := UserClaims{
+		UserID:   userId,
+		UserName: userName,
+		RegisteredClaims: jwt.RegisteredClaims{
+			Issuer:    config.Issuer,
+			Subject:   userName,
+			Audience:  jwt.ClaimStrings{"Auth_All"},
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(config.AuthTokenExpires * time.Hour)),
+			NotBefore: jwt.NewNumericDate(time.Now().Add(-10 * time.Second)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			ID:        util.GenerateSalt(),
+		},
+	}
+	priKey, err := util.ParsePriKeyBytes([]byte(config.PrivateKey))
+	token, err := jwt.NewWithClaims(jwt.SigningMethodRS256, uc).SignedString(priKey)
+	return token, err
+}
+
+// ParseToken 解析token
+func ParseToken(tokenStr string) (*UserClaims, error) {
+	token, err := jwt.ParseWithClaims(tokenStr, &UserClaims{}, func(token *jwt.Token) (interface{}, error) {
+		pub, err := util.ParsePubKeyBytes([]byte(config.PublicKey))
+		if err != nil {
+			return nil, err
+		}
+		return pub, nil
+	})
+	if err != nil {
+		if errors.Is(err, jwt.ErrTokenExpired) {
+			claims, _ := token.Claims.(*UserClaims)
+			return claims, err
+		}
+		return nil, err
+	}
+	// 验证token是否有效
+	if !token.Valid {
+		return nil, errors.New("token is invalid")
+	}
+	// 解析token中的claims内容
+	claims, ok := token.Claims.(*UserClaims)
+	if !ok {
+		return nil, errors.New("invalid claim type error")
+	}
+	return claims, err
+}
+
+// RefreshToken 刷新 token
+
+// SaveUserToken 将用户登录成功后的token字符串存放到redis中
+func SaveUserToken(token string, userId uint) error {
+	// 设置redis中token的过期时间为 token过期时间后的7天
+	return db.Rdb.Set(db.Cxt, fmt.Sprintf(config.UserTokenKey, userId), token, (config.AuthTokenExpires+7*24)*time.Hour).Err()
+}
+
+// GetUserTokenById 从redis中获取指定userId对应的token
+func GetUserTokenById(userId uint) string {
+	token, err := db.Rdb.Get(db.Cxt, fmt.Sprintf(config.UserTokenKey, userId)).Result()
+	if err != nil {
+		log.Println(err)
+		return ""
+	}
+	return token
+}
+
+// ClearUserToken 清楚指定id的用户的登录信息
+func ClearUserToken(userId uint) error {
+	return db.Rdb.Del(db.Cxt, fmt.Sprintf(config.UserTokenKey, userId)).Err()
+}