refactor: 从 Beego 迁移到 GoFrame v2

- 替换 Beego 框架为 GoFrame v2
- 重构项目结构: controller/service/dao/middleware 分层
- 替换自定义 crons 包为 gcron
- 模板从 views/ 迁移到 resource/template/
- 配置从 conf/app.conf 迁移到 config.yml
- 数据库从 MySQL 切换为 SQLite (modernc.org/sqlite)
- 移除 agent/ 远程执行器（待后续迁移）
- 移除 crons/ 自定义定时器包
- 静态资源整理到 resource/static/

libs/string.go

@@ -1,83 +1,56 @@
-/**********************************************
-** @Des: This file ...
-** @Author: haodaquan
-** @Date:   2017-09-08 00:24:25
-** @Last Modified by:   haodaquan
-** @Last Modified time: 2017-09-17 10:12:06
-***********************************************/
-
 package libs
 
 import (
 	"crypto/md5"
+	"crypto/sha256"
+	"encoding/hex"
 	"fmt"
-	"github.com/axgle/mahonia"
-	"math/rand"
-	"regexp"
-	"time"
+	"strings"
+
+	"github.com/gogf/gf/v2/util/grand"
 )
 
-var emailPattern = regexp.MustCompile("[\\w!#$%&'*+/=?^_`{|}~-]+(?:\\.[\\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\\w](?:[\\w-]*[\\w])?\\.)+[a-zA-Z0-9](?:[\\w-]*[\\w])?")
-
+// Md5 计算MD5哈希（仅用于向后兼容旧密码验证）
 func Md5(buf []byte) string {
-	hash := md5.New()
-	hash.Write(buf)
-	return fmt.Sprintf("%x", hash.Sum(nil))
+	return fmt.Sprintf("%x", md5.Sum(buf))
 }
 
-func SizeFormat(size float64) string {
-	units := []string{"Byte", "KB", "MB", "GB", "TB"}
-	n := 0
-	for size > 1024 {
-		size /= 1024
-		n += 1
+// HashPassword 生成密码哈希（使用 SHA-256 + 随机盐值）
+// 格式: $sha256$<salt>$<hash>
+func HashPassword(password string) (string, string) {
+	salt := grand.S(16)
+	h := sha256.Sum256([]byte(salt + password))
+	hash := fmt.Sprintf("$sha256$%s$%x", salt, h)
+	return hash, salt
+}
+
+// VerifyPassword 验证密码，兼容新旧两种哈希格式
+func VerifyPassword(password, storedHash, salt string) bool {
+	// 新格式: $sha256$<salt>$<hash>
+	if strings.HasPrefix(storedHash, "$sha256$") {
+		parts := strings.Split(storedHash, "$")
+		if len(parts) != 4 {
+			return false
+		}
+		h := sha256.Sum256([]byte(parts[2] + password))
+		expected := fmt.Sprintf("$sha256$%s$%x", parts[2], h)
+		return storedHash == expected
 	}
-
-	return fmt.Sprintf("%.2f %s", size, units[n])
+	// 旧格式: MD5(password + salt)
+	return Md5([]byte(password+salt)) == storedHash
 }
 
-func IsEmail(b []byte) bool {
-	return emailPattern.Match(b)
-}
-
-func Password(len int, pwdO string) (pwd string, salt string) {
-	salt = GetRandomString(4)
-	defaultPwd := "george518"
-	if pwdO != "" {
-		defaultPwd = pwdO
+// Password 生成密码和盐值（已弃用，使用 HashPassword 代替）
+func Password(length int, pwdO string) (pwd string, salt string) {
+	if pwdO == "" {
+		pwdO = "george518"
 	}
-	pwd = Md5([]byte(defaultPwd + salt))
-	return pwd, salt
+	pwd, salt = HashPassword(pwdO)
+	return
 }
 
-// 生成32位MD5
-// func MD5(text string) string{
-//    ctx := md5.New()
-//    ctx.Write([]byte(text))
-//    return hex.EncodeToString(ctx.Sum(nil))
-// }
-
-//生成随机字符串
-func GetRandomString(lens int) string {
-	str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	bytes := []byte(str)
-	result := []byte{}
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	for i := 0; i < lens; i++ {
-		result = append(result, bytes[r.Intn(len(bytes))])
-	}
-	return string(result)
-}
-
-func GbkAsUtf8(str string) string {
-	srcDecoder := mahonia.NewDecoder("gbk")
-	desDecoder := mahonia.NewDecoder("utf-8")
-	resStr := srcDecoder.ConvertString(str)
-	_, resBytes, _ := desDecoder.Translate([]byte(resStr), true)
-	return string(resBytes)
-}
-
-//任务识别码
-func JobKey(taskId, serverId int) int {
-	return taskId*100000 + serverId
+// Sha256Hex 计算 SHA-256 十六进制字符串
+func Sha256Hex(data []byte) string {
+	h := sha256.Sum256(data)
+	return hex.EncodeToString(h[:])
 }