Incorporating .NET code into a webpage

Maverick1182 · 12-05-2006, 08:02 AM

I have finally got my wake on LAN function working by using the depicus website WOL ovre internet http://www.depicus.com/wake-on-lan/woli.aspx (for those who are interested). I'm being a little paranoid and I want to make a similar webpage which does the same thing just incase the Depicus website closes down etc. On the depicus page it gives a stripped down version of .NET code for creating the magic packet. I'm not a hardcore programmer and I tried to copy the code to my website (at uni). Unfortunately I dont know how to manipulate the .NET code to make it into the usable type of code as on the depicus page. I was wondering if anyone who has the experience had any suggestions (or could help) on how to create the webpage page. I may invest time in learning html / .net from scratch but I dont know if that's over kill. Hence i need to have someone look at it before I commence. Any advice would be much appreciated.

The code is as follows:

Code:

<%@ Import Namespace = "System.Net" %>

<%@ Import Namespace = "System.Net.Sockets" %>

<%@ Import Namespace = "System.Net.Dns"%>

<%@ Import Namespace = "System.Text"%>



<script language="vb" runat="server">



	Private Function InvertBinary(ByVal x As String) As String

        Dim ch As Char

        Dim len As Integer = CStr(x).Length

        For Each ch In CStr(x)

            If ch = "1" Then

                InvertBinary += "0"

            Else

                InvertBinary += "1"

            End If

        Next

    End Function



    Private Function OrIt(ByVal x As Long, ByVal y As Long) As String

        'Pad out

        Dim xx As String

        xx = CStr(x)

        While xx.Length < 8

            xx = "0" + xx

        End While



        Dim yy As String

        yy = CStr(y)

        While yy.Length < 8

            yy = "0" + yy

        End While

        For c As Integer = 0 To 7

            If xx.Chars(c) = "1" Or yy.Chars(c) = "1" Then

                OrIt += "1"

            Else

                OrIt += "0"

            End If

        Next

    End Function



    Private Function ToBinary(ByVal x As Long) As String

        Dim temp As String = ""

        Do

            If x Mod 2 Then

                temp = "1" + temp

            Else

                temp = "0" + temp

            End If

            x = x \ 2

            If x < 1 Then Exit Do

        Loop



        While temp.Length < 8

            temp = "0" + temp

        End While



        Return temp

    End Function



    Private Function ToInteger(ByVal x As Long) As String

        Dim temp As String

        Dim ch As Char

        Dim multiply As Integer = 1

        Dim subtract As Integer = 1

        Dim len As Integer = CStr(x).Length

        For Each ch In CStr(x)

            For len = 1 To CStr(x).Length - subtract

                multiply = multiply * 2

            Next

            multiply = CInt(ch.ToString) * multiply

            temp = multiply + temp

            subtract = subtract + 1

            multiply = 1

        Next

        Return temp

    End Function

    

    Private Sub btnWakeUp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) 

        Dim udpClient As New UdpClient

        Dim buf(101) As Char

        Dim sendBytes As [Byte]() = Encoding.ASCII.GetBytes(buf)

        For x As Integer = 0 To 5

            sendBytes(x) = CInt("&HFF")

        Next



        Dim MacAddress As String

        MacAddress = Replace(edtMac.Text, "-", "")



        Dim i As Integer = 6

        For x As Integer = 1 To 16

            sendBytes(i) = CInt("&H" + MacAddress.Substring(0, 2))

            sendBytes(i + 1) = CInt("&H" + MacAddress.Substring(2, 2))

            sendBytes(i + 2) = CInt("&H" + MacAddress.Substring(4, 2))

            sendBytes(i + 3) = CInt("&H" + MacAddress.Substring(6, 2))

            sendBytes(i + 4) = CInt("&H" + MacAddress.Substring(8, 2))

            sendBytes(i + 5) = CInt("&H" + MacAddress.Substring(10, 2))

            i += 6

        Next



        Dim myAddress As String



        '' Split user IP address

        Dim myIpArray() As String

        Dim a, b, c, d As Int64

        myIpArray = edtIpAddress.Text.Split(".")

        For i = 0 To myIpArray.GetUpperBound(0)

            Select Case i

                Case Is = 0

                    a = Convert.ToInt64(myIpArray(i))

                Case Is = 1

                    b = Convert.ToInt64(myIpArray(i))

                Case Is = 2

                    c = Convert.ToInt64(myIpArray(i))

                Case Is = 3

                    d = Convert.ToInt64(myIpArray(i))

            End Select

        Next



        Dim mySubnetArray() As String

        Dim sm1, sm2, sm3, sm4 As Int64

        mySubnetArray = edtSubnetMask.Text.Split(".")

        For i = 0 To mySubnetArray.GetUpperBound(0)

            Select Case i

                Case Is = 0

                    sm1 = Convert.ToInt64(mySubnetArray(i))

                Case Is = 1

                    sm2 = Convert.ToInt64(mySubnetArray(i))

                Case Is = 2

                    sm3 = Convert.ToInt64(mySubnetArray(i))

                Case Is = 3

                    sm4 = Convert.ToInt64(mySubnetArray(i))

            End Select

        Next

        myAddress = ToInteger(OrIt(ToBinary(a), InvertBinary(ToBinary(sm1)))) & "." & ToInteger(OrIt(ToBinary(b), InvertBinary(ToBinary(sm2)))) & _

    "." & ToInteger(OrIt(ToBinary(c), InvertBinary(ToBinary(sm3)))) & "." & ToInteger(OrIt(ToBinary(d), InvertBinary(ToBinary(sm4))))





        udpClient.Send(sendBytes, sendBytes.Length, myAddress, CInt(edtPortNo.Text))

        lblSent.Text = " Magic Packet sent to " & myAddress







    End Sub

    



	</script>



<html>



<head>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">

<title>www.depicus.com</title>

</head>



<body>



<form id=myForm method=post runat="server">

<asp:textbox id=edtMac runat="server" CssClass="myInput">00-90-27-A3-22-FE</asp:TextBox><br>

<asp:textbox id=edtIpAddress runat="server" MaxLength="15" CssClass="myInput">217.204.255.55</asp:TextBox><br>

<asp:textbox id=edtSubnetMask runat="server" MaxLength="15" CssClass="myInput">255.255.255.240</asp:TextBox><br>

<asp:textbox id=edtPortNo runat="server" MaxLength="5" CssClass="myInput">7</asp:TextBox><br>

<asp:button id=btnWakeUp runat="server" onclick="btnWakeUp_Click" Text="Wake On Wan" CssClass="bluebutton"></asp:Button>

<asp:Label id=lblSent runat="server" CssClass="errortext"><p>&nbsp;</p></asp:Label>

</form>



</body>



</html>

hob · 12-06-2006, 03:39 PM

IIRC the current version of Mono supports C#, but not VB.NET, so you will need to convert this code into C# in order to run it on a Linux server.

Maverick1182 · 12-06-2006, 05:16 PM

Okay, I will have a word withsomeone on the conversion. Thanks for the direction

mrcheeks · 12-06-2006, 05:52 PM

I would try to use code behind as much as possible instead of embedding the code in a webpage.

Maverick1182 · 12-07-2006, 04:33 AM

Do you mean I can somehow create a standalone application which can do the same thing?

mrcheeks · 12-07-2006, 06:27 PM

Yes and separate the vb.net code from the html server code. Look at the .Net quick start. If I remember it just and include of the vb.net code at the top of the aspx page.
Good Luck!