75 lines
1.8 KiB
Plaintext
75 lines
1.8 KiB
Plaintext
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GUID Generator - 26 Characters
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'Generate 26 charcter Unique ID
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Function GetUniqueId()
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Dim strUniqueID, GUID
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Dim iCount, strBinary, strUniqueChar
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'Set GUID = Server.CreateObject("GuidMak
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' r.GUID")
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Set GUID = Server.CreateObject("GuidMakr.GUID")
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strUniqueID = Trim(GUID.GetGUID) 'Returns something like E06019F5A31311D4902B00A0C9ECF1DF
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'Remove -, { in the generated number
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strUniqueID = Right(Left(Replace(strUniqueID, "-", ""), 33), 32)
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'Convert to binary
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strBinary = ""
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For iCount = 1 To 32
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strBinary = strBinary & ConvertHexToBin(Mid(strUniqueID, iCount, 1))
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Next
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'make it to 130 bit number
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strBinary = strBinary & "00"
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'Regroup binary into 5bits and convert t
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' o number
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For iCount = 1 To 130 Step 5
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strNo = (CInt(Mid(strBinary, iCount, 1)) * 16) + (CInt(Mid(strBinary, iCount + 1, 1)) * 8) + (CInt(Mid(strBinary, iCount + 2, 1)) * 4) + (CInt(Mid(strBinary, iCount + 3, 1)) * 2) + (CInt(Mid(strBinary, iCount + 4, 1)))
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'If greater than 9 convert the number To alphabet. Where A maps to 10
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If strNo > 9 Then
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strChar = Chr(strNo + 56)
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Else
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strChar = CStr(strNo)
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End If
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strUniqueChar = strUniqueChar & strChar
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Next
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GetUniqueId = strUniqueChar 'Something like T1H1KUE32D8U941C02HDKS7IST
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End Function
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Function ConvertHexToBin(strHex)
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Dim strBin
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Select Case UCase(strHex)
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Case "0"
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strBin = "0000"
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Case "1"
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strBin = "0001"
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Case "2"
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strBin = "0010"
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Case "3"
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strBin = "0011"
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Case "4"
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strBin = "0100"
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Case "5"
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strBin = "0101"
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Case "6"
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strBin = "0110"
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Case "7"
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strBin = "0111"
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Case "8"
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strBin = "1000"
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Case "9"
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strBin = "1001"
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Case "A"
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strBin = "1010"
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Case "B"
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strBin = "1011"
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Case "C"
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strBin = "1100"
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Case "D"
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strBin = "1101"
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Case "E"
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strBin = "1110"
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Case "F"
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strBin = "1111"
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Case Else
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strBin = ""
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End Select
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ConvertHexToBin = strBin
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End Function
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