checkmk-plugins/check_mk-pending_reboot/agents/windows/plugins/pending_reboot.ps1
2019-08-12 11:59:29 +03:00

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#[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
## Check for pending restart status
$Computer = get-content env:computername
# Setting pending values to false to cut down on the number of else statements
$PendFileRename,$Pending,$SCCM = $false,$false,$false
# Setting CBSRebootPend to null since not all versions of Windows has this value
$CBSRebootPend = $null
# Querying WMI for build version
$WMI_OS = Get-WmiObject -Class Win32_OperatingSystem -Property BuildNumber, CSName -ComputerName $Computer -Authentication PacketPrivacy -Impersonation Impersonate
# Making registry connection to the local/remote computer
$RegCon = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.Win32.RegistryHive]"LocalMachine", $Computer)
# If Vista/2008 & Above query the CBS Reg Key
if ($WMI_OS.BuildNumber -ge 6001){
$RegSubKeysCBS = $RegCon.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\").GetSubKeyNames()
$CBSRebootPend = $RegSubKeysCBS -contains "RebootPending"
}
else{
$CBSRebootPend = $false
}
# Query WUAU from the registry
$RegWUAU = $RegCon.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\")
$RegSubKeysWUAU = $RegWUAU.GetSubKeyNames()
$WUAURebootReq = $RegSubKeysWUAU -contains "RebootRequired"
# Query PendingFileRenameOperations from the registry
$RegSubKeySM = $RegCon.OpenSubKey("SYSTEM\CurrentControlSet\Control\Session Manager\")
$RegValuePFRO = $RegSubKeySM.GetValue("PendingFileRenameOperations",$null)
# If PendingFileRenameOperations has a value set $RegValuePFRO variable to $true
if ($RegValuePFRO){
$PendFileRename = $true
}
# Closing registry connection
$RegCon.Close()
# Determine SCCM 2012 Client Reboot Pending Status
# To avoid nested 'if' statements and unneeded WMI calls to determine if the CCM_ClientUtilities class exist, setting EA = 0
$CCMClientSDK = $null
$CCMSplat = @{
NameSpace='ROOT\ccm\ClientSDK'
Class='CCM_ClientUtilities'
Name='DetermineIfRebootPending'
ComputerName=$Computer
ErrorAction='SilentlyContinue'
}
$CCMClientSDK = Invoke-WmiMethod @CCMSplat
if ($CCMClientSDK){
if ($CCMClientSDK.ReturnValue -ne 0){
Write-Warning "Error: DetermineIfRebootPending returned error code $($CCMClientSDK.ReturnValue)"
}
if ($CCMClientSDK.IsHardRebootPending -or $CCMClientSDK.RebootPending){
$SCCM = $true
}
}
else{
$SCCM = $null
}
if($CBSRebootPend OR $WUAURebootReq -OR $PendFileRename -OR $SCCM){
$machineNeedsRestart = $true
}
else{
$machineNeedsRestart = $false
}
write-host "<<<pending_reboot>>>"
if($machineNeedsRestart){
if(!(Test-Path "./age1.txt")){
Get-Date -format G| Out-File ./age1.txt
}
$startDate=Get-Content "./age1.txt"
$currentDate=(Get-Date -format G)
$difference=(New-Timespan -Start $startDate -End $currentDate)
$diffOut=[math]::round($difference.TotalHours,0)
write-host "pendingReboot 1"$diffOut
}
else{
if(Test-Path "./age1.txt"){
Remove-Item ./age1.txt
}
if(!(Test-Path "./age2.txt")){
Get-Date -format G| Out-File ./age2.txt
}
$startDate=Get-Content "./age2.txt"
$currentDate=(Get-Date -format G)
$difference=(New-Timespan -Start $startDate -End $currentDate)
$diffOut=[math]::round($difference.TotalHours,0)
write-host "pendingReboot 0"$diffOut
}