asp.net - 从 C# ASP.Net 调用经典 ASP

Question

我需要从一些服务器端 c#.net 代码中调用经典 asp 页面上的 VBscript 函数 - 有谁知道一种干净的方法来做到这一点？在 .net 中重写函数不是一种选择。

我会再解释一下这个问题......

有问题的客户端函数是用 VBScript 编写的 MD5 实现，用于散列密码。我正在 .Net 中重新设计该站点，并希望将密码加密移动到 SHA，为了做到这一点，我需要使用旧机制(旧版 MD5 实现)在第一次登录时捕获用户，使用散列他们的密码SHA & 存储新的哈希值以备将来使用。

我遇到的问题是我无法使用旧的 MD5 实现对新 .Net 站点上的用户进行身份验证。

我已经尝试了发布的建议，但是出于某种奇怪的原因，当我从“foo.asp”页面(仅用于调用该函数)调用该函数时，它给了我与旧站点不同的结果!

对这个有点疯狂 - 也许这是一种编码？

我还尝试将旧版 MD5 算法转换为 .Net，但无济于事。

任何帮助将非常感激。

这是遗留脚本:

<%
' Derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm,
' as set out in the memo RFC1321.

Private Const BITS_TO_A_BYTE = 8
Private Const BYTES_TO_A_WORD = 4
Private Const BITS_TO_A_WORD = 32

Private m_lOnBits(30)
Private m_l2Power(30)

m_lOnBits(0) = CLng(1)
m_lOnBits(1) = CLng(3)
m_lOnBits(2) = CLng(7)
m_lOnBits(3) = CLng(15)
m_lOnBits(4) = CLng(31)
m_lOnBits(5) = CLng(63)
m_lOnBits(6) = CLng(127)
m_lOnBits(7) = CLng(255)
m_lOnBits(8) = CLng(511)
m_lOnBits(9) = CLng(1023)
m_lOnBits(10) = CLng(2047)
m_lOnBits(11) = CLng(4095)
m_lOnBits(12) = CLng(8191)
m_lOnBits(13) = CLng(16383)
m_lOnBits(14) = CLng(32767)
m_lOnBits(15) = CLng(65535)
m_lOnBits(16) = CLng(131071)
m_lOnBits(17) = CLng(262143)
m_lOnBits(18) = CLng(524287)
m_lOnBits(19) = CLng(1048575)
m_lOnBits(20) = CLng(2097151)
m_lOnBits(21) = CLng(4194303)
m_lOnBits(22) = CLng(8388607)
m_lOnBits(23) = CLng(16777215)
m_lOnBits(24) = CLng(33554431)
m_lOnBits(25) = CLng(67108863)
m_lOnBits(26) = CLng(134217727)
m_lOnBits(27) = CLng(268435455)
m_lOnBits(28) = CLng(536870911)
m_lOnBits(29) = CLng(1073741823)
m_lOnBits(30) = CLng(2147483647)

m_l2Power(0) = CLng(1)
m_l2Power(1) = CLng(2)
m_l2Power(2) = CLng(4)
m_l2Power(3) = CLng(8)
m_l2Power(4) = CLng(16)
m_l2Power(5) = CLng(32)
m_l2Power(6) = CLng(64)
m_l2Power(7) = CLng(128)
m_l2Power(8) = CLng(256)
m_l2Power(9) = CLng(512)
m_l2Power(10) = CLng(1024)
m_l2Power(11) = CLng(2048)
m_l2Power(12) = CLng(4096)
m_l2Power(13) = CLng(8192)
m_l2Power(14) = CLng(16384)
m_l2Power(15) = CLng(32768)
m_l2Power(16) = CLng(65536)
m_l2Power(17) = CLng(131072)
m_l2Power(18) = CLng(262144)
m_l2Power(19) = CLng(524288)
m_l2Power(20) = CLng(1048576)
m_l2Power(21) = CLng(2097152)
m_l2Power(22) = CLng(4194304)
m_l2Power(23) = CLng(8388608)
m_l2Power(24) = CLng(16777216)
m_l2Power(25) = CLng(33554432)
m_l2Power(26) = CLng(67108864)
m_l2Power(27) = CLng(134217728)
m_l2Power(28) = CLng(268435456)
m_l2Power(29) = CLng(536870912)
m_l2Power(30) = CLng(1073741824)

Private Function LShift(lValue, iShiftBits)
    If iShiftBits = 0 Then
        LShift = lValue
        Exit Function
    ElseIf iShiftBits = 31 Then
        If lValue And 1 Then
            LShift = &H80000000
        Else
            LShift = 0
        End If
        Exit Function
    ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
        Err.Raise 6
    End If

    If (lValue And m_l2Power(31 - iShiftBits)) Then
        LShift = ((lValue And m_lOnBits(31 - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H80000000
    Else
        LShift = ((lValue And m_lOnBits(31 - iShiftBits)) * m_l2Power(iShiftBits))
    End If
End Function

Private Function RShift(lValue, iShiftBits)
    If iShiftBits = 0 Then
        RShift = lValue
        Exit Function
    ElseIf iShiftBits = 31 Then
        If lValue And &H80000000 Then
            RShift = 1
        Else
            RShift = 0
        End If
        Exit Function
    ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
        Err.Raise 6
    End If

    RShift = (lValue And &H7FFFFFFE) \ m_l2Power(iShiftBits)

    If (lValue And &H80000000) Then
        RShift = (RShift Or (&H40000000 \ m_l2Power(iShiftBits - 1)))
    End If
End Function

Private Function RotateLeft(lValue, iShiftBits)
    RotateLeft = LShift(lValue, iShiftBits) Or RShift(lValue, (32 - iShiftBits))
End Function

Private Function AddUnsigned(lX, lY)
    Dim lX4
    Dim lY4
    Dim lX8
    Dim lY8
    Dim lResult

    lX8 = lX And &H80000000
    lY8 = lY And &H80000000
    lX4 = lX And &H40000000
    lY4 = lY And &H40000000

    lResult = (lX And &H3FFFFFFF) + (lY And &H3FFFFFFF)

    If lX4 And lY4 Then
        lResult = lResult Xor &H80000000 Xor lX8 Xor lY8
    ElseIf lX4 Or lY4 Then
        If lResult And &H40000000 Then
            lResult = lResult Xor &HC0000000 Xor lX8 Xor lY8
        Else
            lResult = lResult Xor &H40000000 Xor lX8 Xor lY8
        End If
    Else
        lResult = lResult Xor lX8 Xor lY8
    End If

    AddUnsigned = lResult
End Function

Private Function F(x, y, z)
    F = (x And y) Or ((Not x) And z)
End Function

Private Function G(x, y, z)
    G = (x And z) Or (y And (Not z))
End Function

Private Function H(x, y, z)
    H = (x Xor y Xor z)
End Function

Private Function I(x, y, z)
    I = (y Xor (x Or (Not z)))
End Function

Private Sub FF(a, b, c, d, x, s, ac)
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac))
    a = RotateLeft(a, s)
    a = AddUnsigned(a, b)
End Sub

Private Sub GG(a, b, c, d, x, s, ac)
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac))
    a = RotateLeft(a, s)
    a = AddUnsigned(a, b)
End Sub

Private Sub HH(a, b, c, d, x, s, ac)
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac))
    a = RotateLeft(a, s)
    a = AddUnsigned(a, b)
End Sub

Private Sub II(a, b, c, d, x, s, ac)
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac))
    a = RotateLeft(a, s)
    a = AddUnsigned(a, b)
End Sub

Private Function ConvertToWordArray(sMessage)
    Dim lMessageLength
    Dim lNumberOfWords
    Dim lWordArray()
    Dim lBytePosition
    Dim lByteCount
    Dim lWordCount

    Const MODULUS_BITS = 512
    Const CONGRUENT_BITS = 448

    lMessageLength = Len(sMessage)

    lNumberOfWords = (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) \ BITS_TO_A_BYTE)) \  (MODULUS_BITS \ BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS \ BITS_TO_A_WORD)
ReDim lWordArray(lNumberOfWords - 1)

lBytePosition = 0
lByteCount = 0
Do Until lByteCount >= lMessageLength
    lWordCount = lByteCount \ BYTES_TO_A_WORD
    lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE
    lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(Asc(Mid(sMessage, lByteCount + 1, 1)), lBytePosition)
    lByteCount = lByteCount + 1
Loop

lWordCount = lByteCount \ BYTES_TO_A_WORD
lBytePosition = (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE

lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(&H80, lBytePosition)

lWordArray(lNumberOfWords - 2) = LShift(lMessageLength, 3)
lWordArray(lNumberOfWords - 1) = RShift(lMessageLength, 29)

ConvertToWordArray = lWordArray
End Function

Private Function WordToHex(lValue)
Dim lByte
Dim lCount

For lCount = 0 To 3
    lByte = RShift(lValue, lCount * BITS_TO_A_BYTE) And m_lOnBits(BITS_TO_A_BYTE - 1)
    WordToHex = WordToHex & Right("0" & Hex(lByte), 2)
Next
End Function

Public Function MD5(sMessage)
Dim x
Dim k
Dim AA
Dim BB
Dim CC
Dim DD
Dim a
Dim b
Dim c
Dim d

Const S11 = 7
Const S12 = 12
Const S13 = 17
Const S14 = 22
Const S21 = 5
Const S22 = 9
Const S23 = 14
Const S24 = 20
Const S31 = 4
Const S32 = 11
Const S33 = 16
Const S34 = 23
Const S41 = 6
Const S42 = 10
Const S43 = 15
Const S44 = 21

x = ConvertToWordArray(sMessage)

a = &H67452301
b = &HEFCDAB89
c = &H98BADCFE
d = &H10325476

For k = 0 To UBound(x) Step 16
    AA = a
    BB = b
    CC = c
    DD = d

    FF a, b, c, d, x(k + 0), S11, &HD76AA478
    FF d, a, b, c, x(k + 1), S12, &HE8C7B756
    FF c, d, a, b, x(k + 2), S13, &H242070DB
    FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
    FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
    FF d, a, b, c, x(k + 5), S12, &H4787C62A
    FF c, d, a, b, x(k + 6), S13, &HA8304613
    FF b, c, d, a, x(k + 7), S14, &HFD469501
    FF a, b, c, d, x(k + 8), S11, &H698098D8
    FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
    FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
    FF b, c, d, a, x(k + 11), S14, &H895CD7BE
    FF a, b, c, d, x(k + 12), S11, &H6B901122
    FF d, a, b, c, x(k + 13), S12, &HFD987193
    FF c, d, a, b, x(k + 14), S13, &HA679438E
    FF b, c, d, a, x(k + 15), S14, &H49B40821

    GG a, b, c, d, x(k + 1), S21, &HF61E2562
    GG d, a, b, c, x(k + 6), S22, &HC040B340
    GG c, d, a, b, x(k + 11), S23, &H265E5A51
    GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
    GG a, b, c, d, x(k + 5), S21, &HD62F105D
    GG d, a, b, c, x(k + 10), S22, &H2441453
    GG c, d, a, b, x(k + 15), S23, &HD8A1E681
    GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
    GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
    GG d, a, b, c, x(k + 14), S22, &HC33707D6
    GG c, d, a, b, x(k + 3), S23, &HF4D50D87
    GG b, c, d, a, x(k + 8), S24, &H455A14ED
    GG a, b, c, d, x(k + 13), S21, &HA9E3E905
    GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
    GG c, d, a, b, x(k + 7), S23, &H676F02D9
    GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A

    HH a, b, c, d, x(k + 5), S31, &HFFFA3942
    HH d, a, b, c, x(k + 8), S32, &H8771F681
    HH c, d, a, b, x(k + 11), S33, &H6D9D6122
    HH b, c, d, a, x(k + 14), S34, &HFDE5380C
    HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
    HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
    HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
    HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
    HH a, b, c, d, x(k + 13), S31, &H289B7EC6
    HH d, a, b, c, x(k + 0), S32, &HEAA127FA
    HH c, d, a, b, x(k + 3), S33, &HD4EF3085
    HH b, c, d, a, x(k + 6), S34, &H4881D05
    HH a, b, c, d, x(k + 9), S31, &HD9D4D039
    HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
    HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
    HH b, c, d, a, x(k + 2), S34, &HC4AC5665

    II a, b, c, d, x(k + 0), S41, &HF4292244
    II d, a, b, c, x(k + 7), S42, &H432AFF97
    II c, d, a, b, x(k + 14), S43, &HAB9423A7
    II b, c, d, a, x(k + 5), S44, &HFC93A039
    II a, b, c, d, x(k + 12), S41, &H655B59C3
    II d, a, b, c, x(k + 3), S42, &H8F0CCC92
    II c, d, a, b, x(k + 10), S43, &HFFEFF47D
    II b, c, d, a, x(k + 1), S44, &H85845DD1
    II a, b, c, d, x(k + 8), S41, &H6FA87E4F
    II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
    II c, d, a, b, x(k + 6), S43, &HA3014314
    II b, c, d, a, x(k + 13), S44, &H4E0811A1
    II a, b, c, d, x(k + 4), S41, &HF7537E82
    II d, a, b, c, x(k + 11), S42, &HBD3AF235
    II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
    II b, c, d, a, x(k + 9), S44, &HEB86D391

    a = AddUnsigned(a, AA)
    b = AddUnsigned(b, BB)
    c = AddUnsigned(c, CC)
    d = AddUnsigned(d, DD)
Next

MD5 = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))
End Function
%>

Answer 1

听起来您的 VBScript 函数可以通过 HTTP 访问。如果不是，请通过创建一个新页面来公开它，例如 foo.asp它所做的只是调用 MyFunction() .

如果是这种情况，那么您的代码隐藏可以使用 WebClient 要调用的类:

WebClient client = new WebClient ();
Stream data = client.OpenRead ("http://server/foo.asp?bar=baz");
StreamReader reader = new StreamReader (data);
string s = reader.ReadToEnd ();
data.Close ();
reader.Close ();