算了，后端我自己写吧

backend/ai_work/models/def.go

@@ -0,0 +1,108 @@
+package models
+
+import (
+	"crypto/md5"
+	"crypto/rand"
+	"encoding/hex"
+	"regexp"
+	"strings"
+
+	"time"
+)
+
+// 获取当前时间字符串
+// 参数格式可选，默认"2006-01-02 15:04:05"
+func GetCurrentTimeString(format ...string) string {
+	// 默认格式
+	layout := "2006_01_02-15_04_05.999999999"
+
+	// 如果传入了格式参数则使用自定义格式
+	if len(format) > 0 {
+		layout = format[0]
+	}
+
+	return time.Now().Format(layout)
+}
+
+func StringToTimePtr(str string) (*time.Time, error) {
+	layout := "2006-01-02 15:04"
+	t, err := time.Parse(layout, str)
+	if err != nil {
+		return nil, err
+	}
+	return &t, nil
+}
+
+func RandStr32() string {
+	// 生成 32 字节 (256 位) 随机数据
+	b := make([]byte, 32)
+	if _, err := rand.Read(b); err != nil {
+		panic(err)
+	}
+
+	// 转换为 16 进制字符串 (长度 64)
+	cookie := hex.EncodeToString(b)
+	return cookie
+}
+
+func Md5Str(str string) string {
+	hashBytes2 := md5.Sum([]byte(str))
+	hashString2 := hex.EncodeToString(hashBytes2[:]) // 注意数组转切片的[:]
+	return hashString2
+}
+
+func HashUserPass(user *TabUser_) {
+	switch ConfigsUser.PassHashType {
+	case "text":
+		break
+	case "md5":
+		user.Pass = Md5Str(user.Pass)
+
+	case "md5salt":
+		if user.Salt == "" {
+			user.Salt = RandStr32()
+		}
+		user.Pass = Md5Str(Md5Str(user.Pass) + user.Salt)
+
+	}
+
+}
+
+func IsExpired(expireTime time.Time) bool {
+	return expireTime.Before(time.Now())
+}
+
+func CheckCookiesAndUpdate(cookie *TabCookie_) bool {
+	if !IsExpired(cookie.ExpiresAt) {
+		if cookie.Remember {
+			cookiewhere := TabCookie_{
+				ID: cookie.ID,
+			}
+			cookieupdata := TabCookie_{
+				UpdatedAt: time.Now(),
+				ExpiresAt: time.Now().Add(time.Duration(ConfigsUser.CookieTimeout) * time.Second),
+			}
+			DB.Where(&cookiewhere).Updates(&cookieupdata)
+
+		}
+		return true
+	} else {
+		//以过期
+		return false
+	}
+	//return false
+}
+
+// 判断邮箱是否合法
+func IsEmailValid(email string) bool {
+	// 正则表达式（覆盖 99% 常见邮箱格式）
+	pattern := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`
+	regex := regexp.MustCompile(pattern)
+	return regex.MatchString(email)
+}
+
+// 判断字符串是否包含标点符号
+func IsContainsSpecialChar(str string) bool {
+	specialChars := "!@#$%^&*()-+={}[]|\\:;\"'<>,.?/"
+	return strings.ContainsAny(str, specialChars)
+}