首次提交：初始化项目代码

internal/pkg/jwt/jwt.go

@@ -0,0 +1,41 @@
+package jwt
+
+import (
+	"time"
+
+	"cloudnest/internal/pkg/errors"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+type Claims struct {
+	UserID   uint   `json:"user_id"`
+	Username string `json:"username"`
+	UserCode string `json:"user_code"`
+	jwt.RegisteredClaims
+}
+
+func GenerateToken(userID uint, username, userCode string, secret string, expiresIn time.Duration) (string, error) {
+	claims := Claims{
+		UserID:   userID,
+		Username: username,
+		UserCode: userCode,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(expiresIn)),
+		},
+	}
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString([]byte(secret))
+}
+
+func ParseToken(tokenString, secret string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(secret), nil
+	})
+	if err != nil {
+		return nil, errors.Unauthorized("invalid token")
+	}
+	if claims, ok := token.Claims.(*Claims); ok && token.Valid {
+		return claims, nil
+	}
+	return nil, errors.Unauthorized("invalid token")
+}