How to test the internet connection behind a proxy? - powershell

Question

I have this vbscript that works well on Windows 7 32-bit without proxy
In order to improve it, I seek for this solution: How to test internet connection behind a proxy ?
The solution perhaps it will be in VBScript or Powershell or Batch, much as I find a way to check whether i am connected or not behind a proxy !
The piece of code to improve it when i'm behind a proxy
If there is a trick to check if i'm connected to internet when i'm behind a proxy this is my question ?
If CheckConnection = true then
Msgbox "i'm connected to internet",vbinformation+vbSystemModal,"Check connection to internet"
Else
Msgbox "i'm not connected to internet",vbCritical+vbSystemModal,"Check connection to internet"
End if
'***************************************************************************
Function CheckConnection()
CheckConnection = False
strComputer = "smtp.gmail.com"
Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
("select * from Win32_PingStatus where address = '" & strComputer & "'")
For Each objStatus in objPing
If objStatus.Statuscode = 0 Then
MyLoop = False
CheckConnection = True
Exit Function
End If
Next
End Function
'******************************************************************************
The hole code :
Option Explicit
Dim Title,MyScriptPath,DJBuzzRadio,MyLoop,strComputer,objPing,objStatus,FSO,FolderScript,URLICON,Icon
Title = "Radio DJ Buzz Live by © Hackoo © 2015"
MyScriptPath = WScript.ScriptFullName
Set FSO = Createobject("Scripting.FileSystemObject")
FolderScript = FSO.GetParentFolderName(MyScriptPath) 'Chemin du dossier ou se localise le Vbscript
Icon = FolderScript & "\akg.ico"
URLICON = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(104)&ChrW(97)&ChrW(99)&ChrW(107)&ChrW(111)&ChrW(111)&ChrW(46)&ChrW(97)&ChrW(108)&ChrW(119)&ChrW(97)&ChrW(121)&ChrW(115)&ChrW(100)&ChrW(97)&ChrW(116)&ChrW(97)&ChrW(46)&ChrW(110)&ChrW(101)&ChrW(116)&ChrW(47)&ChrW(97)&ChrW(107)&ChrW(103)&ChrW(46)&ChrW(105)&ChrW(99)&ChrW(111)
If Not FSO.FileExists(Icon) Then Call Download(URLICON,Icon)
DJBuzzRadio = ChrW(104)&ChrW(116)&ChrW(116)&ChrW(112)&ChrW(58)&ChrW(47)&ChrW(47)&ChrW(119)&ChrW(119)&ChrW(119)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(111)&ChrW(99)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(115)&ChrW(46)&ChrW(99)&ChrW(104)&ChrW(47)&ChrW(100)&ChrW(106)&ChrW(98)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(114)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(95)&ChrW(119)&ChrW(105)&ChrW(110)&ChrW(100)&ChrW(111)&ChrW(119)&ChrW(115)&ChrW(46)&ChrW(109)&ChrW(112)&ChrW(51)&ChrW(46)&ChrW(97)&ChrW(115)&ChrW(120)
Call Shortcut(MyScriptPath,"DJ Buzz Radio")
MyLoop = True
If CheckConnection = True Then Call AskQuestion()
'***************************************************************************
Function CheckConnection()
CheckConnection = False
While MyLoop = True
strComputer = "smtp.gmail.com"
Set objPing = GetObject("winmgmts:{impersonationLevel=impersonate}!\\").ExecQuery _
("select * from Win32_PingStatus where address = '" & strComputer & "'")
For Each objStatus in objPing
If objStatus.Statuscode = 0 Then
MyLoop = False
CheckConnection = True
Exit Function
End If
Next
Pause(10) 'To sleep for 10 secondes
Wend
End Function
'***************************************************************************
Sub Play(URL)
Dim Sound
Set Sound = CreateObject("WMPlayer.OCX")
Sound.URL = URL
Sound.settings.volume = 100
Sound.Controls.play
do while Sound.currentmedia.duration = 0
wscript.sleep 100
loop
wscript.sleep (int(Sound.currentmedia.duration)+1)*1000
End Sub
'***************************************************************************
Sub Shortcut(CheminApplication,Nom)
Dim objShell,fso,DesktopPath,objShortCut,MyTab,strCurDir
Set objShell = CreateObject("WScript.Shell")
Set fso = CreateObject("Scripting.FileSystemObject")
strCurDir = fso.GetParentFolderName(WScript.ScriptFullName)
MyTab = Split(CheminApplication,"\")
If Nom = "" Then
Nom = MyTab(UBound(MyTab))
End if
DesktopPath = objShell.SpecialFolders("Desktop")
Set objShortCut = objShell.CreateShortcut(DesktopPath & "\" & Nom & ".lnk")
objShortCut.TargetPath = Dblquote(CheminApplication)
ObjShortCut.IconLocation = strCurDir & "\akg.ico"
objShortCut.Save
End Sub
'*****************************************************************************
'Fonction pour ajouter les doubles quotes dans une variable
Function DblQuote(Str)
DblQuote = Chr(34) & Str & Chr(34)
End Function
'*****************************************************************************
Function AppPrevInstance()
With GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\.\root\cimv2")
With .ExecQuery("SELECT * FROM Win32_Process WHERE CommandLine LIKE " & CommandLineLike(WScript.ScriptFullName) & _
" AND CommandLine LIKE '%WScript%' OR CommandLine LIKE '%cscript%'")
AppPrevInstance = (.Count > 1)
End With
End With
End Function
'******************************************************************************
Function CommandLineLike(ProcessPath)
ProcessPath = Replace(ProcessPath, "\", "\\")
CommandLineLike = "'%" & ProcessPath & "%'"
End Function
'******************************************************************************
Sub Pause(NSeconds)
Wscript.Sleep(NSeconds*1000)
End Sub
'******************************************************************************
Sub AskQuestion()
Dim Question,MsgAR,MsgFR,MsgEN
MsgFR = "Voulez-vous écouter DJ Buzz Radio en direct ?" & vbcr & "Oui = Pour écouter" & vbcr & "Non = Pour arrêter" & vbcr & String(50,"*")
MsgEN = "Did you want to listen to the Radio DJ Buzz Live ?" & vbcr & "Yes = To listen" & vbcr & "No = To stop" & vbcr & String(50,"*")
MsgAR = ChrW(1607)&ChrW(1604)&ChrW(32)&ChrW(1578)&ChrW(1585)&ChrW(1610)&ChrW(1583)&ChrW(32)&ChrW(1571)&ChrW(1606)&ChrW(32)&ChrW(1578)&ChrW(1587)&ChrW(1605)&ChrW(1593)&ChrW(32)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1610)&ChrW(1601)&ChrW(32)&ChrW(1585)&ChrW(1575)&ChrW(1583)&ChrW(1610)&ChrW(1608)&ChrW(32)&ChrW(68)&ChrW(74)&ChrW(32)&ChrW(66)&ChrW(117)&ChrW(122)&ChrW(122)&ChrW(32)&ChrW(82)&ChrW(97)&ChrW(100)&ChrW(105)&ChrW(111)&ChrW(32)&ChrW(63) & vbcr & ChrW(1606)&ChrW(1593)&ChrW(1605)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1575)&ChrW(1587)&ChrW(1578)&ChrW(1605)&ChrW(1575)&ChrW(1593) & vbcr & ChrW(1604)&ChrW(1575)&ChrW(32)&ChrW(61)&ChrW(32)&ChrW(1604)&ChrW(1608)&ChrW(1602)&ChrW(1601) & vbcr &_
String(50,"*")
Question = MsgBox(MsgFR & vbcr & MsgEN & vbcr & MsgAR,vbYesNO+vbQuestion+vbSystemModal,Title)
If Question = VbYes And Not AppPrevInstance() Then
Call Play(DJBuzzRadio)
End If
If Question = VbYes And AppPrevInstance() Then
MsgBox "There is another instance in execution !" & VbCrLF &_
"Il y a une autre instance en cours d'exécution !"& VbcrLF &_
ChrW(1607)&ChrW(1606)&ChrW(1575)&ChrW(1603)&ChrW(32)&ChrW(1605)&ChrW(1579)&ChrW(1575)&ChrW(1604)&ChrW(32)&ChrW(1570)&ChrW(1582)&ChrW(1585)&ChrW(32)&ChrW(1601)&ChrW(1610)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1578)&ChrW(1606)&ChrW(1601)&ChrW(1610)&ChrW(1584)& VbcrLF &_
CommandLineLike(WScript.ScriptName),VbExclamation+vbSystemModal,Title
WScript.Quit()
End If
If Question = VbNo And Not AppPrevInstance() Then
Call Kill("wscript.exe")
End If
If Question = VbNo And AppPrevInstance() Then
Call Kill("wscript.exe")
End If
End Sub
'******************************************************************************
Sub Kill(MyProcess)
Dim Titre,colItems,objItem,Processus,Question
Titre = " Processus "& DblQuote(MyProcess) &" en cours d'exécution "
Set colItems = GetObject("winmgmts:").ExecQuery("Select * from Win32_Process " _
& "Where Name like '%"& MyProcess &"%' AND commandline like " & CommandLineLike(WScript.ScriptFullName) & "",,48)
For Each objItem in colItems
objItem.Terminate(0)' Tuer ce processus
Next
End Sub
'******************************************************************************
Sub Download(strFileURL,strHDLocation)
Dim objXMLHTTP,objADOStream
Set objXMLHTTP = CreateObject("MSXML2.XMLHTTP")
objXMLHTTP.open "GET", strFileURL, false
objXMLHTTP.send()
If objXMLHTTP.Status = 200 Then
Set objADOStream = CreateObject("ADODB.Stream")
objADOStream.Open
objADOStream.Type = 1 'adTypeBinary
objADOStream.Write objXMLHTTP.ResponseBody
objADOStream.Position = 0 'Set the stream position to the start
objADOStream.SaveToFile strHDLocation,2
objADOStream.Close
Set objADOStream = Nothing
End If
Set objXMLHTTP = Nothing
Shortcut MyScriptPath,"DJ Buzz Radio"
MsgBox "Un raccourci a été crée sur votre bureau !"& vbcr &_
"A shortcut was created on your desktop !"& vbcr &_
ChrW(1578)&ChrW(1605)&ChrW(32)&ChrW(1573)&ChrW(1606)&ChrW(1588)&ChrW(1575)&ChrW(1569)&ChrW(32)&ChrW(1575)&ChrW(1582)&ChrW(1578)&ChrW(1589)&ChrW(1575)&ChrW(1585)&ChrW(32)&ChrW(1593)&ChrW(1604)&ChrW(1609)&ChrW(32)&ChrW(1587)&ChrW(1591)&ChrW(1581)&ChrW(32)&ChrW(1575)&ChrW(1604)&ChrW(1605)&ChrW(1603)&ChrW(1578)&ChrW(1576),vbSystemModal+vbInformation,Title
End Sub
'**************************************************************************

Answer 1

If you mean the settings of the local computer you can query the registry:
REG QUERY "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable
If the value is 0x1 then the there is set proxy. You can check also the proxy value through the value of ProxyServer at the same location. More info here.
You can check if your external IP is the same like your internal IP address.
This uses winhttpjs.bat
for /f "skip=1 tokens=* delims=" %%a in ('winhhttpjs.bat "http://www.telize.com/ip" -saveTo con') do (
set "ip=%%a"
)
ipconfig| find "%ip%" || (
echo not real IP/proxy
)