Rob van der Woude's Scripting Pages
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Source code for pingsite.vbs

(view source code of pingsite.vbs as plain text) 

  1. Option Explicit
  2.  
  3. Dim strMsg, strWebsite
  4.  
  5. If WScript.Arguments.Unnamed.Count <> 1 Then Syntax
  6. If WScript.Arguments.Named.Count   <> 0 Then Syntax
  7. If Not IsHostName( WScript.Arguments.Unnamed(0) ) Then Syntax
  8.  
  9. strWebsite = WScript.Arguments.Unnamed(0)
  10. If PingSite( strWebsite ) Then
  11. 	WScript.Echo "Web site " & strWebsite & " is up and running!"
  12. Else
  13. 	WScript.Echo "Web site " & strWebsite & " is down!!!"
  14. End If
  15.  
  16.  
  17. Function PingSite( myWebsite )
  18. ' This function checks if a website is running by sending an HTTP request.
  19. ' If the website is up, the function returns True, otherwise it returns False.
  20. ' Argument: myWebsite [string] in "www.domain.tld" format, without the
  21. ' "http://" prefix.
  22. '
  23. ' Written by Rob van der Woude
  24. ' http://www.robvanderwoude.com
  25. 	Dim intStatus, objHTTP
  26.  
  27. 	Set objHTTP = CreateObject( "WinHttp.WinHttpRequest.5.1" )
  28.  
  29. 	objHTTP.Open "GET", "http://" & myWebsite & "/", False
  30. 	objHTTP.SetRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MyApp 1.0; Windows NT 5.1)"
  31.  
  32. 	On Error Resume Next
  33.  
  34. 	objHTTP.Send
  35. 	intStatus = objHTTP.Status
  36.  
  37. 	On Error Goto 0
  38.  
  39. 	Set objHTTP = Nothing
  40.  
  41. 	If intStatus = 200 Then
  42. 		PingSite = True
  43. 	Else
  44. 		PingSite = False
  45. 	End If
  46. End Function
  47.  
  48.  
  49. Function IsHostName( myString )
  50. ' Check if a string has a valid host name format
  51. 	Dim colMatches, objRE
  52.  
  53. 	Set objRE        = New RegExp
  54. 	objRE.Global     = False
  55. 	objRE.IgnoreCase = True
  56. 	objRE.Pattern    = "^([a-z][a-z_0-9-]+\.)*[a-z][a-z_0-9-]+\.[a-z]{2,8}$"
  57. 	Set colMatches   = objRE.Execute( myString )
  58.  
  59. 	If colMatches.Count = 1 Then
  60. 		IsHostName = True
  61. 	Else
  62. 		IsHostName = False
  63. 	End If
  64.  
  65. 	Set colMatches = Nothing
  66. 	Set objRE      = Nothing
  67. End Function
  68.  
  69.  
  70. Sub Syntax( )
  71. 		strMsg = "PingSite.vbs,  Version 1.01" & vbCrLf _
  72. 		       & "Check if a website is up and running" & vbCrLf & vbCrLf _
  73. 		       & "Usage:  PINGSITE.VBS  www.any_domain.tld" & vbCrLf & vbCrLf _
  74. 		       & "Written by Rob van der Woude" & vbCrLf _
  75. 		       & "http://www.robvanderwoude.com"
  76. 		WScript.Echo strMsg
  77. 		WScript.Quit 1
  78. End Sub
  79.  

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