Rebooting a Citrix Server

#
# $Author: Berry $
# $Rev: 1.4 $
#
# Version control:
#
# 1.0 Initial version in powershell scripting
# 1.1 Changed the log rotate to 90 days, added the print spooler task kill
# 1.2 20-11-2012 Added Function GetCurrentDateTime to proper logfile entry creation
# 1.3 03-01-2013 Completely restructured and re-written
# 1.4 23-06-2013 Added Function SetMachineConfigRights and set email alert to: alert@bogus.tld

#
# Functions definitions
#

Function LogAction
{
	Param([string]$a)
	[string]$LogDate = Get-Date -format “dd-MM-yyyy HH:mm:ss.ms”
	Add-Content -path $LogFileName -value “$LogDate – $a”
}

Function LogRotate
{
	param([int]$a)
	# Check for logfiles older than <$a> days
	LogAction “—————————————————-”
	LogAction “Starting to rotate log files”
	[int]$DaysToKeep = $a
	$CompareDate = (Get-Date).AddDays(-$DaysToKeep)
	Get-ChildItem $LogFolder\*$LogFile | Where-Object {$_.LastWriteTime -lt $CompareDate} | Remove-Item
	LogAction ” Finished to rotating log files”
}

Function LogOffCitrixUsers
{
	Add-PSSnapin Citrix* -ErrorAction SilentlyContinue
	[array]$CheckActiveSessions = Get-XASession -ServerName $CitrixServer | where {$_.Protocol -match “ICA” -and $_.AccountName -match “$UserDomain”}

	If ($CheckActiveSessions.length -gt 0){

		do {
			[array]$ActiveSessions = Get-XASession -ServerName $CitrixServer | where {$_.Protocol -match “ICA” -and $_.AccountName -match “$Userdomain”}
			for ($i=0; $i -lt $ActiveSessions.length ; $i++)
			{
				LogAction “Attempting to log off”
				LogAction $ActiveSessions[$i].AccountName
				LogAction $ActiveSessions[$i].SessionId
				LogOff $ActiveSessions[$i].SessionId
				LogAction “Sleeping for 8192 milliseconds.”
				Start-Sleep -Milliseconds 8192
			}
		}	while ($ActiveSessions.Count -gt 0 )
	}
	else
	{
		LogAction “No active user sessions found.”
	}
}

Function ApplyPatchesAndReboot
{
	Param([string]$a)
	[string]$EmailAddress = $a
	[string]$StartExe = “c:\windows\syswow64\ApplyPatchesAndreboot.exe”
	[string]$StartExeArgs = “/noreboot /mailonfail:$EmailAddress”
	LogAction “Starting to apply patches”
	start-process $StartExe $StartExeArgs -Wait
	LogAction ” Finished applying Patches”
}

Function SetMachineConfigRights
{
	LogAction “Starting SetMachineConfigRights”
	$FindMachineConfig = get-childitem -path C:\Windows\Microsoft.NET -Recurse -Filter “Machine.Config”
	$FindMachineConfig = $FindMachineConfig.Fullname
	For ($i=0; $i -lt $FindMachineConfig.length ; $i++)
	{
		LogAction ” Setting ACL for “$FindMachineConfig[$i]
		icacls $FindMachineConfig[$i] /grant “Domain Users:(M)”
		}
	LogAction ” Finished SetMachineConfigRights”
}

Function RemoveSpoolFiles
{
	LogAction “Cleaning obsolete files from the spooler directory”
	$SpoolFolder = Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Control\Print\Printers | select “DefaultSpoolDirectory”
	[int]$SpoolFileCount = 0
	Get-ChildItem -Path $SpoolFolder.DefaultSpoolDirectory | ForEach-Object {$SpoolFileCount++}
	If ($SpoolFileCount -gt 0)
	{
		LogAction ” Removing $SpoolFileCount spool files”
		Get-ChildItem $SpoolFolder.DefaultSpoolDirectory | foreach ($_) {remove-item $_.fullname}
	}
	Else
	{
		LogAction ” No obsolete spool files found”
	}
}

Function KillService {
	Param([string]$a, [string]$b) # the two parameters.
	[string]$ServiceName = $a
	[string]$ServiceDescription = $b
	[int]$n = 3 # second to wait
	LogAction “Attempting to abort $b”
	If (Get-Process $ServiceName -ErrorAction SilentlyContinue)
	{
		Stop-Process -processname $ServiceName -Force
		Start-Sleep -Seconds $n
		If (Get-Process $ServiceName -ErrorAction SilentlyContinue)
		{
			LogAction ” ***** FAILED *****”
		}
		Else
		{
			LogAction ” $ServiceDescription abortion confirmed”
		}
	}
	Else
	{
		LogAction ” * $ServiceDescription not running *”
	}

Function StartService {
	Param([string]$a) # Service description.
	[string]$ServiceDescription =$a
	[int]$n = 3 # second to wait
	LogAction “Starting $a after $n seconds”
	Start-Sleep -Seconds $n
	Start-Service $a
	Get-Service “Print Spooler” | ForEach-Object { 
		if ($_.status -eq “running”)
		{LogAction ” Service – $a – running”}
		else
		{
			LogAction ” ***** Service -$a- not running *****”
		}
	}
}

Function RebootServer {
	LogAction ” ***** Initiating Reboot *****”
	. c:\s4\Framework\Core\S4-Preload.ps1;S4-PreLoad;S4\Invoke-Systemreboot
	LogAction ” ***** Reboot intiated *****”
}

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### Start of Main Routine
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################## PREREQUISITES ##################
################## PREREQUISITES ##################
################## PREREQUISITES ##################

[string]$SystemDrive = Get-Content ENV:SystemDrive
[string]$SystemRoot = Get-Content ENV:SystemRoot
[string]$CitrixServer = Get-Content ENV:COMPUTERNAME
[string]$UserDomain = Get-Content ENV:USERDOMAIN
[string]$LogFolder = $SystemDrive+”\Logs\”
[string]$LogFile = “_Reboot_log.txt”
[string]$LogFileDate = get-date -format “dd-MM-yyyy”
[string]$LogFileName = $LogFolder + $LogFileDate + $LogFile

### Do house keeping on the logfiles by rotating over $DaysToKeep

LogRotate 90 #DaysToKeep

### User log off

LogOffCitrixUsers

### Killing the Citrix Print Manager
KillService cpsvc “Citrix Print Manager Service”

### Kill Microsoft Print Spooler Service
KillService spoolsv “Print Spooler”

### Cleaning up the obsolote spool files from the spooler directory
RemoveSpoolFiles

### Starting Microsoft Print Spooler Service
StartService “Print Spooler”

### Starting Citrix Print Manager Service
StartService “Citrix Print Manager Service”

### Start process Apply Patches (without reboot!)
### email the results on failure to address mentioned in first argument
alert@bogus.tld

### Change the ACL for the MACHINE.CONFIG files in the various Microsoft .NET folders
SetMachineConfigRights

### Starting Citrix Print Manager Service
RebootServer

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### End of Main Routine
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