get_rdp_info.vbs

'On Error Resume Next

' The basis for this script was found on the Internet however I have no knowledge of
' who created it. Whoever you are the credit goes out to you :)
Option Explicit
' Define the variables
Dim FinalOutput, OutputTotalOverallThresholds, OutputTotalOverallThresholdsPerfdata, qwinstaOutput, Counter, DefinedActive, DefinedIdle, DefinedDisconnected, TotalActive, TotalIdle, TotalDisconnected, TotalOverall, Version, NumberOfArguments, NumberOfValues, ArgumentCount, CurrentArgument, DefinedValuesArgumentFlag, DefinedValuesArgumentSplit, License, LicenseMessage, Help, HelpMessage, ExitCode, WarnTotalOverall, CritTotalOverall

' Version Number
Version = "2018-02-22"

' Count the number of arguments
NumberOfArguments = Wscript.Arguments.Count

DefinedValuesArgumentFlag = 0

' Lets look at what arguments were supplied
For CurrentArgument = 0 to NumberOfArguments-1
	' Check to see if the -help argument was supplied
	If Wscript.Arguments.Item(CurrentArgument) = "-help" or Wscript.Arguments.Item(CurrentArgument) = "--help" or Wscript.Arguments.Item(CurrentArgument) = "-HELP" or Wscript.Arguments.Item(CurrentArgument) = "-Help" or Wscript.Arguments.Item(CurrentArgument) = "/?" or Wscript.Arguments.Item(CurrentArgument) = "?" Then
		Help = "yes"
	End If
	
	' Check to see if the -license argument was supplied
	If Wscript.Arguments.Item(CurrentArgument) = "-license" Then
		License = "yes"
	End If
	
	' Check to see if the -define_values argument was supplied
	If Wscript.Arguments.Item(CurrentArgument) = "-define_values" Then
		' Check to see if the -define_values argument value was supplied
		If NumberOfArguments-1 > CurrentArgument Then
			DefinedValuesArgumentFlag = 1
						
			' Split the values supplied by the user
			DefinedValuesArgumentSplit = Split(Wscript.Arguments.Item(CurrentArgument+1), ",") 
			
			' Count the number of values
			NumberOfValues = UBound(DefinedValuesArgumentSplit)
			
			' Proceed if 3 values were supplied
			If NumberOfValues = 2 Then
				DefinedActive = DefinedValuesArgumentSplit(0)
				DefinedIdle = DefinedValuesArgumentSplit(1)
				DefinedDisconnected = DefinedValuesArgumentSplit(2)
			Else
				' Set the ExitCode to 3 = Unknown
				ExitCode = 3
				' Set the FinalOutput message
				FinalOutput = "You did not supply 3 values for -define_values (i.e. active,idle,disc )"
				'Wscript.Echo "ExitCode: "& ExitCode
				' Echo the FinalOutput and abort
				Wscript.Echo FinalOutput
				WScript.Quit(ExitCode)
			End If
		Else
			' Nothing was supplied for the -define_values argument
			' Set the ExitCode to 3 = Unknown
			ExitCode = 3
			' Set the FinalOutput message
			FinalOutput = "You did not supply 3 values for -define_values (i.e. active,idle,disc )"
			'Wscript.Echo "ExitCode: "& ExitCode
			' Echo the FinalOutput and abort
			Wscript.Echo FinalOutput
			WScript.Quit(ExitCode)
		End If
	End If

	' Check to see if the -warn_total_overall argument was supplied
	If Wscript.Arguments.Item(CurrentArgument) = "-warn_total_overall" Then
		' Check to see if the -warn_total_overall argument value was supplied
		If NumberOfArguments-1 > CurrentArgument Then
			' Check to see if the -warn_total_overall argument value is a number
			If IsNumeric(Wscript.Arguments.Item(CurrentArgument+1)) Then
				' Check to see if the -warn_total_overall argument value is a positive number
				If Wscript.Arguments.Item(CurrentArgument+1) >= 0 Then
					' Define the value to be used later
					WarnTotalOverall = Wscript.Arguments.Item(CurrentArgument+1)
				Else 
					' Set the ExitCode to 3 = Unknown
					ExitCode = 3
					' Set the FinalOutput message
					FinalOutput = "You did not supply a valid numeric value for -warn_total_overall"
					'Wscript.Echo "ExitCode: "& ExitCode
					' Echo the FinalOutput and abort
					Wscript.Echo FinalOutput
					WScript.Quit(ExitCode)
				End If
			Else 
				' Set the ExitCode to 3 = Unknown
				ExitCode = 3
				' Set the FinalOutput message
				FinalOutput = "You did not supply a numeric value for -warn_total_overall"
				'Wscript.Echo "ExitCode: "& ExitCode
				' Echo the FinalOutput and abort
				Wscript.Echo FinalOutput
				WScript.Quit(ExitCode)
			End If
		Else 
			' Set the ExitCode to 3 = Unknown
			ExitCode = 3
			' Set the FinalOutput message
			FinalOutput = "You did not supply a value for -warn_total_overall"
			'Wscript.Echo "ExitCode: "& ExitCode
			' Echo the FinalOutput and abort
			Wscript.Echo FinalOutput
			WScript.Quit(ExitCode)
		End If
	End If
	
	' Check to see if the -crit_total_overall argument was supplied
	If Wscript.Arguments.Item(CurrentArgument) = "-crit_total_overall" Then
		' Check to see if the -crit_total_overall argument value was supplied
		If NumberOfArguments-1 > CurrentArgument Then
			' Check to see if the -crit_total_overall argument value is a number
			If IsNumeric(Wscript.Arguments.Item(CurrentArgument+1)) Then
				' Check to see if the -crit_total_overall argument value is a positive number
				If Wscript.Arguments.Item(CurrentArgument+1) >= 0 Then
					' Define the value to be used later
					CritTotalOverall = Wscript.Arguments.Item(CurrentArgument+1)
				Else 
					' Set the ExitCode to 3 = Unknown
					ExitCode = 3
					' Set the FinalOutput message
					FinalOutput = "You did not supply a valid numeric value for -crit_total_overall"
					'Wscript.Echo "ExitCode: "& ExitCode
					' Echo the FinalOutput and abort
					Wscript.Echo FinalOutput
					WScript.Quit(ExitCode)
				End If
			Else
				' Set the ExitCode to 3 = Unknown
				ExitCode = 3
				' Set the FinalOutput message
				FinalOutput = "You did not supply a numeric value for -crit_total_overall"
				'Wscript.Echo "ExitCode: "& ExitCode
				' Echo the FinalOutput and abort
				Wscript.Echo FinalOutput
				WScript.Quit(ExitCode)
			End If
		Else 
			' Set the ExitCode to 3 = Unknown
			ExitCode = 3
			' Set the FinalOutput message
			FinalOutput = "You did not supply a value for -crit_total_overall"
			'Wscript.Echo "ExitCode: "& ExitCode
			' Echo the FinalOutput and abort
			Wscript.Echo FinalOutput
			WScript.Quit(ExitCode)
		End If
	End IF
	
Next

' If -define_values argument was NOT supplied then use the default english values
If DefinedValuesArgumentFlag = 0 Then
	DefinedActive = "active"
	DefinedIdle = "idle"
	DefinedDisconnected = "disc"
End If



' Check to see if the user is requesting the license
If License = "yes" Then
	LicenseMessage = vbCrLf
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	LicenseMessage = LicenseMessage & "f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "All other non-permissive additional terms are considered ""further restrictions"" within the meaning of section 10.  If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.  If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "8. Termination." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "You may not propagate or modify a covered work except as expressly provided under this License.  Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11)." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License.  If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "9. Acceptance Not Required for Having Copies." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "You are not required to accept this License in order to receive or run a copy of the Program.  Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance.  However, nothing other than this License grants you permission to propagate or modify any covered work.  These actions infringe copyright if you do not accept this License.  Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "10. Automatic Licensing of Downstream Recipients." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License.  You are not responsible for enforcing compliance by third parties with this License." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "An ""entity transaction"" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations.  If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License.  For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "11. Patents." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "A ""contributor"" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based.  The work thus licensed is called the contributor's ""contributor version""." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "A contributor's ""essential patent claims"" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version.  For purposes of this definition, ""control"" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "In the following three paragraphs, a ""patent license"" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement).  To ""grant"" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients.  ""Knowingly relying"" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "A patent license is ""discriminatory"" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License.  You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "12. No Surrender of Others' Freedom." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License.  If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all.  For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "13. Use with the GNU Affero General Public License." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work.  The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "14. Revised Versions of this License." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Each version is given a distinguishing version number.  If the Program specifies that a certain numbered version of the GNU General Public License ""or any later version"" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation.  If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "Later license versions may give you additional or different permissions.  However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "15. Disclaimer of Warranty." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ""AS IS"" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "16. Limitation of Liability." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "17. Interpretation of Sections 15 and 16." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee." & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "END OF TERMS AND CONDITIONS" & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & vbCrLf
	LicenseMessage = LicenseMessage & "To see the license type:" & vbCrLf
	LicenseMessage = LicenseMessage & vbTab & "cscript /nologo check_paging_file.vbs -license | more" & vbCrLf
	
	' Echo the LicenseMessage and exit
	Wscript.Echo LicenseMessage
	WScript.Quit(0)
End If


' Check to see if the user is requesting help
If Help = "yes" Then
	HelpMessage = vbCrLf
	HelpMessage = HelpMessage & "get_rdp_info.vbs plugin for Nagios version " & Version & vbCrLf
	HelpMessage = HelpMessage & "Copyright (c) 2018 Troy Lea aka Box293" & vbCrLf
	HelpMessage = HelpMessage & "plugins@box293.com" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "The purpose of this plugin is to get information on the Windows Terminal Services / Remote Desktop Session Host Usage and return this back to Nagios." & vbCrLf
	HelpMessage = HelpMessage & "The plugin runs without any arguments, it will just return a service status of OK." & vbCrLf
	HelpMessage = HelpMessage & "The plugin allows you to use warning and/or critical thresholds for the total overall sessions." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "This plugin is designed to be run by NSClient++ on the host you want to check. It is not designed to allow you to check a remote host, this is why there is no option to specify the host name." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Session Information:" & vbCrLf
	HelpMessage = HelpMessage & "The plugin will report how many RDP sessions are Active, Idle or Disconnected and the total." & vbCrLf
	HelpMessage = HelpMessage & "This is a way to look at daily trends and understand how loaded your servers are." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Examples:" & vbCrLf
	HelpMessage = HelpMessage & "Check Total Overall Sessions, warning when more than 50 sessions exist:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "cscript /nologo get_rdp_info.vbs -warn_total_overall 50" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Configuring Nagios and NSClient++" & vbCrLf
	HelpMessage = HelpMessage & "Check Total Overall Sessions, warning when more than 50 sessions exist, critical @ 75:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "cscript /nologo get_rdp_info.vbs -warn_total_overall 50 -crit_total_overall 75" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Configuring Nagios and NSClient++" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Nagios:" & vbCrLf
	HelpMessage = HelpMessage & "The following shows you how to configure your Command AND Service definitions." & vbCrLf
	HelpMessage = HelpMessage & "Command Definition:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "define command {" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "command_name	get_rdp_info" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "command_line	$USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c get_rdp_info" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "}" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Service Definition:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "define service {" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "host_name		your_host" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "service_description	RDP Info" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "check_command		get_rdp_info" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "max_check_attempts	3" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "check_interval		3" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "retry_interval		3" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "register		1" & vbCrLf
	HelpMessage = HelpMessage & vbTab & vbTab & "}" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "NSClient++" & vbCrLf
	HelpMessage = HelpMessage & "Version 0.3.x" & vbCrLf
	HelpMessage = HelpMessage & "Copy the plugin to the scripts directory." & vbCrLf
	HelpMessage = HelpMessage & "Add the following to the [External Scripts] section in NSC.ini:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "get_rdp_info=cscript.exe //T:30 //NoLogo scripts\get_rdp_info.vbs" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Nagios PNP Performance Graph Template" & vbCrLf
	HelpMessage = HelpMessage & "A custom pnp performance graph template has been provided, this generates two seperate performance graphs." & vbCrLf
	HelpMessage = HelpMessage & "The file must be placed into the pnp/templates directory on your Nagios host. I have only tested this on Nagios XI and the default location on a Nagios XI host is /usr/local/nagios/share/pnp/templates." & vbCrLf
	HelpMessage = HelpMessage & "NOTE: The name of the file MUST match the name of the Command Definition command_name. In the example above it is called get_rdp_info and hence this is why the template is called get_rdp_info.php. If you are using this plugin as a passive check, the ending string of the performance data includes the name of the plugin, pnp will see this and use the custom pnp template." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "License: " & vbCrLf
	HelpMessage = HelpMessage & "This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "You should have received a copy of the GNU General Public License along with this program.  If not, see http://www.gnu.org/licenses/." & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "To see the license type:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "cscript /nologo check_paging_file.vbs -license | more" & vbCrLf
	HelpMessage = HelpMessage & vbCrLf
	HelpMessage = HelpMessage & "Help: " & vbCrLf
	HelpMessage = HelpMessage & "To see the help type:" & vbCrLf
	HelpMessage = HelpMessage & vbTab & "cscript /nologo check_paging_file.vbs -help | more"
	
	' Echo the HelpMessage and exit
	Wscript.Echo HelpMessage
	WScript.Quit(0)
End If


' If a critical value was supplied then is it has to be greater than the warning value
' Also create the string used in the performance data
OutputTotalOverallThresholdsPerfdata = ""
' First check to see if the critical value exists
If Not IsEmpty(CritTotalOverall) Then
	' Now check to see if the warning value exists
	If Not IsEmpty(WarnTotalOverall) Then
		' Now check to see if the critical value is smaller than the warning value
		If cInt(CritTotalOverall) < cInt(WarnTotalOverall) Then
			' Set the ExitCode to 3 = Unknown
			ExitCode = 3
			' Set the FinalOutput message
			FinalOutput = "The value you supplied for -crit_total_overall is smaller than the -warn_total_overall value"
			'Wscript.Echo "ExitCode: "& ExitCode
			' Echo the FinalOutput and abort
			Wscript.Echo FinalOutput
			WScript.Quit(ExitCode)
		Else
			' Define the OutputTotalOverallThresholdsPerfdata
			OutputTotalOverallThresholdsPerfdata = ";" & WarnTotalOverall & ";" & CritTotalOverall
		End If
	Else
		' Define the OutputTotalOverallThresholdsPerfdata
		OutputTotalOverallThresholdsPerfdata = ";;" & CritTotalOverall
	End If
Else
	' Define the OutputTotalOverallThresholdsPerfdata
	OutputTotalOverallThresholdsPerfdata = ";" & WarnTotalOverall
End If

' ############################################################
' BEGIN Session State data collection

' Set all the totals to 0
TotalActive = 0
TotalIdle = 0
TotalDisconnected = 0

' Get the output from qwinsta
qwinstaOutput = Split(cmd("qwinsta"),vbCrLf) 
'Wscript.Echo "Output: " & qwinstaOutput
'Wscript.Echo ""

' Loop through each output line of qwinstaOutput
For Counter = 0 to UBound(qwinstaOutput) 
	' First we need to make sure it's not the session services
	If InStr(1, qwinstaOutput(Counter), "services", 1) = 0 Then
		' Test for an Active session
		If InStr(1, qwinstaOutput(Counter), DefinedActive, 1) > 0 Then
			'Wscript.Echo "Active"
			TotalActive = TotalActive + 1
		End If
		' Test for an Idle session
		If InStr(1, qwinstaOutput(Counter), DefinedIdle, 1) > 0 Then
			'Wscript.Echo "Idle"
			TotalIdle = TotalIdle + 1
		End If
		' Test for a Disconnected session
		If InStr(1, qwinstaOutput(Counter), DefinedDisconnected, 1) > 0 Then
			'Wscript.Echo "Disc"
			TotalDisconnected = TotalDisconnected + 1
		End If
	End If
Next 

' Calculate the total overall
TotalOverall = TotalActive + TotalIdle + TotalDisconnected
'Wscript.Echo "TotalOverall: " & TotalOverall
'Wscript.Echo "WarnTotalOverall: " & WarnTotalOverall
'Wscript.Echo "CritTotalOverall: " & CritTotalOverall

OutputTotalOverallThresholds = ""
' To check the critical value first we must check to see if the warning value exists
If Not IsEmpty(WarnTotalOverall) Then
	' Check to see if the critical value exists
	If Not IsEmpty(CritTotalOverall) Then
		' Check to see if the current usage is greater than the critical value
		If Int(TotalOverall) > Int(CritTotalOverall) Then
			' Set the ExitCode
			ExitCode = 2
			' Define the OutputTotalOverallThresholds
			OutputTotalOverallThresholds = OutputTotalOverallThresholds & ", CRITICAL: Current Usage " & TotalOverall & " EXCEEDS critical threshold of " & CritTotalOverall
		Else
			' The current usage was not greater than the critical value, now to check the warning value
			If Int(TotalOverall) > Int(WarnTotalOverall) Then
				' Set the ExitCode
				ExitCode = 1
				' Define the OutputTotalOverallThresholds
				OutputTotalOverallThresholds = OutputTotalOverallThresholds & ", Current Usage " & TotalOverall & " EXCEEDS warning threshold of " & WarnTotalOverall
			End If
		End If
	Else
		' There was not critical value so check to see if the current usage is greater than the warning value
		If Int(TotalOverall) > Int(WarnTotalOverall) Then
			' Set the ExitCode
			ExitCode = 1
			' Define the OutputTotalOverallThresholds
			OutputTotalOverallThresholds = OutputTotalOverallThresholds & ", Current Usage " & TotalOverall & " EXCEEDS warning threshold of " & WarnTotalOverall
		End If
	End If
' There was no warning value so we need to do the critical check
Else
	' Check to see if the critical value exists
	If Not IsEmpty(CritTotalOverall) Then
		' Check to see if the current usage is greater than the critical value
		If Int(TotalOverall) > Int(CritTotalOverall) Then
			' Set the ExitCode
			ExitCode = 2
			' Define the OutputTotalOverallThresholds
			OutputTotalOverallThresholds = OutputTotalOverallThresholds & ", CRITICAL: Current Usage " & TotalOverall & " EXCEEDS critical threshold of " & CritTotalOverall
		End If
	End If
End If


' This function is as I found it on the Internet
Function Cmd(cmdline) 
	' Wrapper for getting StdOut from a console command 
	Dim Sh, FSO, fOut, OutF, sCmd 
	Set Sh = createobject("WScript.Shell") 
	Set FSO = createobject("Scripting.FileSystemObject") 
	fOut = FSO.GetTempName 
	sCmd = "%COMSPEC% /c " & cmdline & " >" & fOut 
	Sh.Run sCmd, 0, True 
	If FSO.FileExists(fOut) Then 
		If FSO.GetFile(fOut).Size>0 Then 
			Set OutF = FSO.OpenTextFile(fOut) 
			Cmd = OutF.Readall 
			OutF.Close 
		End If 
		FSO.DeleteFile(fOut) 
	End If 
End Function 


' ############################################################
' END Session State data collection

FinalOutput = "Sessions {Total Overall=" & TotalOverall & OutputTotalOverallThresholds & "} {Active=" & TotalActive & "} {Idle=" & TotalIdle & "} {Disconnected=" & TotalDisconnected & "}|'Total Overall Sessions'=" & TotalOverall & OutputTotalOverallThresholdsPerfdata & " 'Active Sessions'=" & TotalActive & " 'Idle Sessions'=" & TotalIdle & " 'Disconnected Sessions'=" & TotalDisconnected
Wscript.Echo FinalOutput
WScript.Quit(ExitCode)