czjt1234

回复 15# newswan


我测试了win7x64

拔插U盘会触发设定的程序

在U盘上写入删除修改文件，均不会触发设定的程序

newswan

回复 16# czjt1234

会不停的有消息__InstanceModificationEvent

$psAction = {
	$action = $eventArgs.NewEvent.__CLASS
	Write-Host ""
	Write-Host (Get-Date)
	Write-Host $action
}

$psQuery = " select * from __InstanceOperationEvent within 1 where TargetInstance isa 'Win32_LogicalDisk' "

Register-WmiEvent  -SourceIdentifier mountEvent  -Query $psQuery  -Action $psAction
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newswan

回复 16# czjt1234

你加上 case else 试试

WHY

回复 11# newswan

$query = "select * from __InstanceOperationEvent within 5 where (__CLASS='__InstanceCreationEvent' or __CLASS='__InstanceDeletionEvent') and  TargetInstance isa 'Win32_LogicalDisk' and TargetInstance.DriveType=2";
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这样写，除了查询语句变长、变复杂，没啥太大意义。
即使这样写，还是需要 Swith 或 If 判断一下，除非插入与拔出时执行的是一样的命令（比如都是设置共享，或者都是删除共享）。

newswan

回复 19# WHY

谢谢，但是，我是为了避免的不需要的事件

czjt1234

回复 18# newswan


为什么要加 case else
原代码已经满足了你的需求，不是不要加这个么
加了这个反而不好

还有 ps 不是用了 Switch ($class) 么
你把这个去掉当然有问题了

newswan

回复 21# czjt1234

这样通知订阅就 提前过滤掉 __InstanceModificationEvent ，不用到 case 的才过滤掉

newswan

回复 19# WHY

让 ai 给合并，结果是个 250

czjt1234

提前过滤掉 __InstanceModificationEvent
代码运行查看cpu占用基本为0，不用在意这个吧
再说19楼说了，即使过滤掉，还是要对结果进行 case 或 Switch

非要过滤掉，vbs可以变通一下，当然代码非但没简洁反而更复杂了

s1 = "SELECT * FROM __InstanceCreationEvent WITHIN 1 WHERE TargetInstance ISA 'Win32_LogicalDisk' AND TargetInstance.DriveType = 2"
s2 = "SELECT * FROM __InstanceDeletionEvent WITHIN 1 WHERE TargetInstance ISA 'Win32_LogicalDisk' AND TargetInstance.DriveType = 2"
Set oWshShell = CreateObject("WScript.Shell")
Set oWMI = GetObject("Winmgmts:\\.\Root\Cimv2")
Set oSWbemSink = WScript.CreateObject("WbemScripting.SWbemSink", "Sink_")
Set o1 = CreateObject("WbemScripting.SWbemNamedValueSet")
o1.Add "类型", "插入"
Set o2 = CreateObject("WbemScripting.SWbemNamedValueSet")
o2.Add "类型", "拔出"
oWMI.ExecNotificationQueryAsync oSWbemSink, s1,,,, o1
oWMI.ExecNotificationQueryAsync oSWbemSink, s2,,,, o2
Do
    WScript.Sleep 100
Loop
Sub Sink_OnObjectReady(objWbemObject, objWbemAsyncContext)
    If objWbemAsyncContext.Item("类型") = "插入" Then msgbox "插入"
    If objWbemAsyncContext.Item("类型") = "拔出" Then msgbox "拔出"
End Sub
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newswan

回复 24# czjt1234

这算强迫症

newswan

最终

if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
    Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass  -NoExit -File `"$PSCommandPath`"" -Verb RunAs
    exit
}


$psQuery = @"
	select *  from __InstanceOperationEvent  within 1
	where TargetInstance  isa 'Win32_LogicalDisk' and (__CLASS='__InstanceCreationEvent' or __CLASS='__InstanceDeletionEvent')
"@

$psAction = {
	$action = $eventArgs.NewEvent.__CLASS
	$diskDriveType  = $event.SourceArgs.NewEvent.TargetInstance.DriveType
	$diskLetter  = $event.SourceArgs.NewEvent.TargetInstance.Name
	$diskVolume  = $event.SourceArgs.NewEvent.TargetInstance.VolumeName

	Write-Host "`n"
	Write-Host "- $( Get-Date -format "yyyy-MM-dd HH:mm:ss" ) -"

	switch ( $diskDriveType ) {
		2 {
			$sharePath = $diskLetter + "movie"
			$shareName = $diskVolume -replace "\D+","movie"
			
			Switch ($action) {
				"__InstanceCreationEvent" {
					if ( Test-Path $sharePath ) {
						Write-Host "USB Drive $diskLetter $diskVolume Inserted."
						Write-Host $(net share $shareName=$sharePath /GRANT:everyone,CHANGE)
					}
				}
				"__InstanceDeletionEvent" {
					Write-Host "USB Drive $diskLetter $diskVolume Removed."
					Write-Host $(net share $shareName /Delete)
				}
			}
		}
		5 {
			$sharePath = $diskLetter
			$shareName = $($sharePath -replace ":","_") + $diskVolume
			
			Switch ($action) {
				"__InstanceCreationEvent" {
					Write-Host "Optical Drive $diskLetter $diskVolume Inserted."
					Write-Host $(net share $shareName=$sharePath)
				}
				"__InstanceDeletionEvent" {
					Write-Host "Optical Drive $diskLetter $diskVolume Removed."
					Write-Host $(net share $shareName /Delete)
				}
			}
		}
	}
}


Unregister-Event mountEvent -ErrorAction SilentlyContinue
Register-WmiEvent  -SourceIdentifier mountEvent  -Query $psQuery  -Action $psAction
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