Files
backend/internal/service/yggdrasil_validator.go
2025-12-03 10:58:39 +08:00

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package service
import (
"errors"
"net"
"regexp"
"strings"
)
// Validator Yggdrasil验证器
type Validator struct{}
// NewValidator 创建验证器实例
func NewValidator() *Validator {
return &Validator{}
}
var (
// emailRegex 邮箱正则表达式
emailRegex = regexp.MustCompile(`^[a-zA-Z0-9._%+\-]+@[a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}$`)
)
// ValidateServerID 验证服务器ID格式
func (v *Validator) ValidateServerID(serverID string) error {
if serverID == "" {
return errors.New("服务器ID不能为空")
}
if len(serverID) > 100 {
return errors.New("服务器ID长度超过限制最大100字符")
}
// 防止注入攻击:检查危险字符
if strings.ContainsAny(serverID, "<>\"'&") {
return errors.New("服务器ID包含非法字符")
}
return nil
}
// ValidateIP 验证IP地址格式
func (v *Validator) ValidateIP(ip string) error {
if ip == "" {
return nil // IP是可选的
}
if net.ParseIP(ip) == nil {
return errors.New("IP地址格式无效")
}
return nil
}
// ValidateEmail 验证邮箱格式
func (v *Validator) ValidateEmail(email string) error {
if email == "" {
return errors.New("邮箱不能为空")
}
if !emailRegex.MatchString(email) {
return errors.New("邮箱格式不正确")
}
return nil
}
// ValidateUUID 验证UUID格式简单验证
func (v *Validator) ValidateUUID(uuid string) error {
if uuid == "" {
return errors.New("UUID不能为空")
}
// UUID格式xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx (32个十六进制字符 + 4个连字符)
if len(uuid) < 32 || len(uuid) > 36 {
return errors.New("UUID格式无效")
}
return nil
}
// ValidateAccessToken 验证访问令牌
func (v *Validator) ValidateAccessToken(token string) error {
if token == "" {
return errors.New("访问令牌不能为空")
}
if len(token) < 10 {
return errors.New("访问令牌格式无效")
}
return nil
}