# prtg-nagios
#
# Simple Script to run Nagios Scripts and convert results into PRTC EXEXML-Format
# can run as CustomEXEXML or can run as HTTPPush-Sensor

param (
	[string]$command="cmd.exe /c 'echo OK MyCheck1 var1=value1^|var2=value2 ein beliebiger text mit Leerzeichen'",
	[string]$parameters,
	[string]$httppush="" # "GET http://<probe_ip>:<port_number>/<token>?content="  # URL 
)

Write-host "prtg-nagios: Start"
set-psdebug -strict

Write-host " Start Nagios Command $command"
$result = invoke-expression -command $command

$resultarray= $result.SPLIT(" ")
$status=$resultarray[0]
$name=$resultarray[1]
$vars=$resultarray[2].split("|")
$textmessage=$resultarray[3..($resultarray.length - 1)]

Write-host " Preparing Output XML"
$prtgresult='<?xml version=""1.0"" encoding=""UTF-8"" ?>' +"`r`n"
$prtgresult+="<prtg>`r`n"
foreach ($var in $vars)
{
	$prtgresult+="  <result>`r`n"
	$prtgresult+="   	<channel>"+$name+":"+$var.split("=")[0]+"</channel>`r`n"
	$prtgresult+="   	<value>"+$var.split("=")[1].split(";")[0]+"</value>`r`n"
	$prtgresult+="	</result>`r`n"
}
$prtgresult+="<text>"+$textmessage+"</text>`r`n"
$prtgresult+="</prtg>"

if ($httppush.length -gt 0 )
{
	write-host " Sending via HTTPPush"
	$httppush
	$Answer = Invoke-Webrequest `
		-method "GET" `
		-URI ($httppush+$prtgresult)
	if ($answer.Statuscode -ne 200) {
	   write-Host " Request to PRTG failed Exit 3"
	   exit 3
	}
}
else
{
	write-host " Sending Output to pipeline"
	$prtgresult
}

Write-host "prtg-nagios: Exiting. Code:" -nonewline
switch ($status) {
	"OK" 		{write-host "0"; exit 0}
	"WARNING" 	{write-host "1"; exit 1}
	"CRITICAL" 	{write-host "2"; exit 2}
	"UNKNOWN" 	{write-host "3"; exit 3}
}