tianyuan-api-server/apps/gateway/internal/validator/validator.go

// internal/validator/validation.go

package validator

import (
	"errors"
	"fmt"
	"github.com/zeromicro/go-zero/core/stores/redis"
	"regexp"
	"unicode/utf8"
)

func ValidateUsername(username string) error {
	if utf8.RuneCountInString(username) < 2 {
		return errors.New("用户名长度不能少于2个中文或4个英文字符")
	}
	return nil
}

func ValidatePassword(password string) error {
	if len(password) < 8 {
		return errors.New("密码长度不能少于8位")
	}
	return nil
}

func ValidatePhoneNumber(phone string) error {
	phoneRegex := `^1[3-9]\d{9}$`
	re := regexp.MustCompile(phoneRegex)
	if !re.MatchString(phone) {
		return errors.New("手机号格式不正确")
	}
	return nil
}

func ValidateVerifyCode(redisClient *redis.Redis, phone, code string) error {
	// 从 Redis 获取验证码
	savedCode, err := redisClient.Get(phone)
	if err != nil {
		if errors.Is(err, redis.Nil) {
			return errors.New("验证码已过期")
		}
		return err
	}

	// 验证码不匹配
	if savedCode != code {
		return errors.New("验证码不正确")
	}

	return nil
}
func IsValidIPAddress(ip string) bool {
	// 正则表达式：匹配 IPv4 地址格式
	var ipRegex = regexp.MustCompile(`^([0-9]{1,3}\.){3}[0-9]{1,3}$`)

	// 判断格式是否匹配
	if !ipRegex.MatchString(ip) {
		return false
	}

	// 验证每个段是否在 0 到 255 之间
	var segments = ipRegex.FindStringSubmatch(ip)
	for _, segment := range segments {
		var num int
		fmt.Sscanf(segment, "%d", &num)
		if num < 0 || num > 255 {
			return false
		}
	}

	return true
}