fix: 修复了SMB的一个已知问题

Plugins/SMB.go

@@ -1,7 +1,6 @@
 package Plugins
 
 import (
-	"errors"
 	"fmt"
 	"github.com/shadow1ng/fscan/Common"
 	"github.com/stacktitan/smb/smb"
@@ -10,24 +9,20 @@ import (
 	"time"
 )
 
-// SmbScan 执行SMB服务的认证扫描
 func SmbScan(info *Common.HostInfo) (tmperr error) {
 	if Common.DisableBrute {
 		return nil
 	}
 
-	maxRetries := Common.MaxRetries
 	threads := Common.BruteThreads
+	totalTasks := len(Common.Userdict["smb"]) * len(Common.Passwords)
 
-	// 创建任务通道
 	taskChan := make(chan struct {
 		user string
 		pass string
-	}, len(Common.Userdict["smb"])*len(Common.Passwords))
+	}, totalTasks)
 
-	resultChan := make(chan error, threads)
-
-	// 生成所有用户名密码组合任务
+	// 生成任务
 	for _, user := range Common.Userdict["smb"] {
 		for _, pass := range Common.Passwords {
 			pass = strings.Replace(pass, "{user}", user, -1)
@@ -39,108 +34,48 @@ func SmbScan(info *Common.HostInfo) (tmperr error) {
 	}
 	close(taskChan)
 
-	// 启动工作线程
 	var wg sync.WaitGroup
+	successChan := make(chan struct{}, 1)
+
+	// 启动工作线程
 	for i := 0; i < threads; i++ {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
-			startTime := time.Now().Unix()
-
 			for task := range taskChan {
-				// 重试循环
-				for retryCount := 0; retryCount < maxRetries; retryCount++ {
-					// 检查是否超时
-					if time.Now().Unix()-startTime > int64(Common.Timeout) {
-						resultChan <- fmt.Errorf("扫描超时")
-						return
-					}
-
-					// 执行SMB认证
-					done := make(chan struct {
-						success bool
-						err     error
-					})
-
-					go func(user, pass string) {
-						success, err := doWithTimeOut(info, user, pass)
-						done <- struct {
-							success bool
-							err     error
-						}{success, err}
-					}(task.user, task.pass)
-
-					// 等待结果或超时
-					var err error
 				select {
-					case result := <-done:
-						err = result.err
-						if result.success && err == nil {
-							// 认证成功
-							var successLog string
+				case <-successChan:
+					return
+				default:
+				}
+
+				success, err := doWithTimeOut(info, task.user, task.pass)
+				if success {
 					if Common.Domain != "" {
-								successLog = fmt.Sprintf("[✓] SMB认证成功 %v:%v Domain:%v\\%v Pass:%v",
-									info.Host, info.Ports, Common.Domain, task.user, task.pass)
+						Common.LogSuccess(fmt.Sprintf("[+] SMB认证成功 %v:%v Domain:%v\\%v Pass:%v",
+							info.Host, info.Ports, Common.Domain, task.user, task.pass))
 					} else {
-								successLog = fmt.Sprintf("[✓] SMB认证成功 %v:%v User:%v Pass:%v",
-									info.Host, info.Ports, task.user, task.pass)
+						Common.LogSuccess(fmt.Sprintf("[+] SMB认证成功 %v:%v User:%v Pass:%v",
+							info.Host, info.Ports, task.user, task.pass))
 					}
-							Common.LogSuccess(successLog)
-							resultChan <- nil
+					successChan <- struct{}{}
 					return
 				}
-					case <-time.After(time.Duration(Common.Timeout) * time.Second):
-						err = fmt.Errorf("连接超时")
-					}
-
-					// 处理错误情况
 				if err != nil {
-						errlog := fmt.Sprintf("[x] SMB认证失败 %v:%v User:%v Pass:%v Err:%v",
-							info.Host, info.Ports, task.user, task.pass,
-							strings.ReplaceAll(err.Error(), "\n", ""))
-						Common.LogError(errlog)
-
-						// 检查是否需要重试
-						if retryErr := Common.CheckErrs(err); retryErr != nil {
-							if retryCount == maxRetries-1 {
-								resultChan <- err
-								return
-							}
-							continue // 继续重试
+					Common.LogError(fmt.Sprintf("[-] SMB认证失败 %v:%v User:%v Pass:%v Err:%v",
+						info.Host, info.Ports, task.user, task.pass, err))
 				}
 			}
-
-					break // 如果不需要重试，跳出重试循环
-				}
-			}
-			resultChan <- nil
 		}()
 	}
 
-	// 等待所有线程完成
-	go func() {
 	wg.Wait()
-		close(resultChan)
-	}()
-
-	// 检查结果
-	for err := range resultChan {
-		if err != nil {
-			tmperr = err
-			if retryErr := Common.CheckErrs(err); retryErr != nil {
-				return err
-			}
-		}
-	}
-
-	return tmperr
+	return nil
 }
 
-// SmblConn 尝试建立SMB连接并进行认证
 func SmblConn(info *Common.HostInfo, user string, pass string, signal chan struct{}) (flag bool, err error) {
 	flag = false
 
-	// 配置SMB连接选项
 	options := smb.Options{
 		Host:        info.Host,
 		Port:        445,
@@ -150,34 +85,69 @@ func SmblConn(info *Common.HostInfo, user string, pass string, signal chan struc
 		Workstation: "",
 	}
 
-	// 尝试建立SMB会话
 	session, err := smb.NewSession(options, false)
 	if err == nil {
 		defer session.Close()
 		if session.IsAuthenticated {
 			flag = true
+			return flag, nil
+		}
+		return flag, fmt.Errorf("认证失败")
+	}
+
+	// 清理错误信息中的换行符和多余空格
+	errMsg := strings.TrimSpace(strings.ReplaceAll(err.Error(), "\n", " "))
+	if strings.Contains(errMsg, "NT Status Error") {
+		switch {
+		case strings.Contains(errMsg, "STATUS_LOGON_FAILURE"):
+			err = fmt.Errorf("用户名或密码错误")
+		case strings.Contains(errMsg, "STATUS_ACCOUNT_LOCKED_OUT"):
+			err = fmt.Errorf("账号已锁定")
+		case strings.Contains(errMsg, "STATUS_ACCESS_DENIED"):
+			err = fmt.Errorf("访问被拒绝")
+		case strings.Contains(errMsg, "STATUS_ACCOUNT_DISABLED"):
+			err = fmt.Errorf("账号已禁用")
+		case strings.Contains(errMsg, "STATUS_PASSWORD_EXPIRED"):
+			err = fmt.Errorf("密码已过期")
+		case strings.Contains(errMsg, "STATUS_USER_SESSION_DELETED"):
+			return flag, fmt.Errorf("会话已断开")
+		default:
+			err = fmt.Errorf("认证失败") // 简化错误信息
 		}
 	}
 
-	// 发送完成信号
 	signal <- struct{}{}
 	return flag, err
 }
 
-// doWithTimeOut 执行带超时的SMB连接认证
 func doWithTimeOut(info *Common.HostInfo, user string, pass string) (flag bool, err error) {
-	signal := make(chan struct{})
+	signal := make(chan struct{}, 1)
+	result := make(chan struct {
+		success bool
+		err     error
+	}, 1)
 
-	// 在goroutine中执行SMB连接
 	go func() {
-		flag, err = SmblConn(info, user, pass, signal)
+		success, err := SmblConn(info, user, pass, signal)
+		select {
+		case result <- struct {
+			success bool
+			err     error
+		}{success, err}:
+		default:
+		}
 	}()
 
-	// 等待连接结果或超时
 	select {
-	case <-signal:
-		return flag, err
+	case r := <-result:
+		return r.success, r.err
 	case <-time.After(time.Duration(Common.Timeout) * time.Second):
-		return false, errors.New("[-] SMB连接超时")
+		// 尝试从result通道读取，避免协程泄露
+		select {
+		case r := <-result:
+			return r.success, r.err
+		default:
+			return false, fmt.Errorf("连接超时")
+		}
 	}
 }