[转帖]ASP + Serv-u 实现FTP的代码

作者：绝对零度

<!--#include file="md5.asp"-->
<%
'**************************************************
'* 作者：awaysrain(绝对零度) *
'* 完成时间：2003-10-10 *
'* 测试环境：WIN2000SERVER，SERV-U 4.2-beta版 *
'**************************************************
Dim iniPath,iniFileName,iniStr,tmpStr,n
Dim userName,passWord,tmp

userName = "myfso222" '用户名
passWord = "awaysrain" '密码
tmp = "ai" '随机生成两个小写字母，（应该是随机生成的，但是我这里省略了）
passWord = tmp & UCase(md5(passWord)) '密码，是MD5加密过的，用动网的MD5加密程序，具体算法是随机生成两位小写字母，然后和你的密码连接后进行MD5加密，把随机生成的密码和MD5加密后的结果作为密码存放，举个例子来说比如下面的awaysrain用户，我的密码为awaysrain先随机生成两位小写字母ai，和我的密码 awaysrain连接得到aiawaysrain把aiawaysrain进行MD5加密得到 9118BFD94A9CE9CF37AE5BAA947ED596把随机生成两位小写字母ai和MD5加密后的结果 9118BFD94A9CE9CF37AE5BAA947ED596连接得到密码ai9118BFD94A9CE9CF37AE5BAA947ED596

iniPath="D:\Program Files\Serv-U" 'ini文件的路径
iniFileName = "ServUDaemon.ini" 'ini的文件名

Set fso=Server.CreateObject("Scripting.FileSystemObject")
Set ServUIni = fso.OpenTextFile(iniPath & "\" & iniFileName,1,false)

iniStr = ""
n = 0
addedUserList = false

Set tf = fso.CreateTextFile(iniPath & "\" & iniFileName & "._awaysrain.tmp", True)
'生成新的临时INI文件

Do While not ServUIni.AtEndOfStream
tmpStr = ServUIni.ReadLine

If Instr("awaysrain||" & tmpStr,"awaysrain||User")>0 Then
'记录用户原来的数量
n = n+1
End If

If Instr("awaysrain||" & tmpStr,"awaysrain||[USER=")>0 and not addedUserList Then
'往用户列表的部分添加现在的用户
n = n +1
tf.WriteLine("User" & n & "=" & userName & "|1|0")
addedUserList = true
End If
tf.WriteLine(tmpStr)
Loop
ServUIni.Close

'添加新用户的信息，具体内容可以在SERV-U中新建用户并对照INI文件

tf.WriteLine("[USER=" & userName & "|1]") '用户名
tf.WriteLine("Password=" & passWord) '密码
tf.WriteLine("HomeDir=e:\temp") '主目录
tf.WriteLine("RelPaths=1") '是否锁定用户于主目录
tf.WriteLine("MaxUsersLoginPerIP=1") '相同IP同时登录数
tf.WriteLine("SpeedLimitDown=102400") '最大下载速度
tf.WriteLine("TimeOut=600") '空闲超时时间（秒）
tf.WriteLine("Access1=E:\Temp|RLP") '可访问目录,可以不是一个，比如 'Access2=E:\Temp1|RLP'

tf.Close
'--------------------备份原来的INI文件--------------------------
Set f1 = fso.GetFile(iniPath & "\" & iniFileName)
f1.Copy (iniPath & "\" & iniFileName & "._awaysrain.bak")
f1.Delete
'--------------------把生成的临时INI文件改为正式的INI--------------------------
Set f1 = fso.GetFile(iniPath & "\" & iniFileName & "._awaysrain.tmp")
f1.Copy (iniPath & "\" & iniFileName)
f1.Delete

Set fso = nothing
%>

注：以上代码假设ServUDaemon.ini中的格式只有一个域并已经至少有一个用户

测试的ServUDaemon.ini文件结构如下：
==================================
[Domain1]
User1=222|1|0
User2=myfso111|1|0
[USER=222|1]
Password=hwB1ECF70CDAF5DAE2B981AE394EEFCDC0
HomeDir=E:\Temp
RelPaths=1
TimeOut=600
Access1=E:\Temp|RLP
[USER=myfso111|1]
Password=ai9118BFD94A9CE9CF37AE5BAA947ED596
HomeDir=e:\temp
RelPaths=1
TimeOut=600
Access1=E:\Temp|RLP

生成后的文件结构如下
==================================
[Domain1]
User1=222|1|0
User2=myfso111|1|0
User3=myfso222|1|0
[USER=222|1]
Password=hwB1ECF70CDAF5DAE2B981AE394EEFCDC0
HomeDir=E:\Temp
RelPaths=1
TimeOut=600
Access1=E:\Temp|RLP
[USER=myfso111|1]
Password=ai9118BFD94A9CE9CF37AE5BAA947ED596
HomeDir=e:\temp
RelPaths=1
TimeOut=600
Access1=E:\Temp|RLP
[USER=myfso222|1]
Password=ai9118BFD94A9CE9CF37AE5BAA947ED596
HomeDir=e:\temp
RelPaths=1
TimeOut=600
Access1=E:\Temp|RLP


附MD5.ASP
==========================================
<%
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)

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 md5_F(x, y, z)
md5_F = (x And y) Or ((Not x) And z)
End Function

Private Function md5_G(x, y, z)
md5_G = (x And z) Or (y And (Not z))
End Function

Private Function md5_H(x, y, z)
md5_H = (x Xor y Xor z)
End Function

Private Function md5_I(x, y, z)
md5_I = (y Xor (x Or (Not z)))
End Function

Private Sub md5_FF(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub

Private Sub md5_GG(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub

Private Sub md5_HH(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub

Private Sub md5_II(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_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)
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)


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

md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
md5_FF b, c, d, a, x(k + 15), S14, &H49B40821

md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
md5_GG d, a, b, c, x(k + 10), S22, &H2441453
md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A

md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665

md5_II a, b, c, d, x(k + 0), S41, &HF4292244
md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
md5_II c, d, a, b, x(k + 6), S43, &HA3014314
md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
md5_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))
'MD5=LCase(WordToHex(b) & WordToHex(c)) 'I crop this to fit 16byte database password :D
End Function
%>

Serv-U密码算法器

Copy code

<%
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)

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 md5_F(x, y, z)
  md5_F = (x And y) Or ((Not x) And z)
End Function

Private Function md5_G(x, y, z)
  md5_G = (x And z) Or (y And (Not z))
End Function

Private Function md5_H(x, y, z)
  md5_H = (x Xor y Xor z)
End Function

Private Function md5_I(x, y, z)
  md5_I = (y Xor (x Or (Not z)))
End Function

Private Sub md5_FF(a, b, c, d, x, s, ac)
  a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))
  a = RotateLeft(a, s)
  a = AddUnsigned(a, b)
End Sub

Private Sub md5_GG(a, b, c, d, x, s, ac)
  a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))
  a = RotateLeft(a, s)
  a = AddUnsigned(a, b)
End Sub

Private Sub md5_HH(a, b, c, d, x, s, ac)
  a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))
  a = RotateLeft(a, s)
  a = AddUnsigned(a, b)
End Sub

Private Sub md5_II(a, b, c, d, x, s, ac)
  a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_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

Private Function MD5(sMessage)
  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)


  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
 
    md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
    md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
    md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
    md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
    md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
    md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
    md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
    md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
    md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
    md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
    md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
    md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
    md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
    md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
    md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
    md5_FF b, c, d, a, x(k + 15), S14, &H49B40821
 
    md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
    md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
    md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
    md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
    md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
    md5_GG d, a, b, c, x(k + 10), S22, &H2441453
    md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
    md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
    md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
    md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
    md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
    md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
    md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
    md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
    md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
    md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A
       
    md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
    md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
    md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
    md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
    md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
    md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
    md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
    md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
    md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
    md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
    md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
    md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
    md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
    md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
    md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
    md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665
 
    md5_II a, b, c, d, x(k + 0), S41, &HF4292244
    md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
    md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
    md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
    md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
    md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
    md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
    md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
    md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
    md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
    md5_II c, d, a, b, x(k + 6), S43, &HA3014314
    md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
    md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
    md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
    md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
    md5_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 = UCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))
End Function

Public function ServU(strpass)
    Randomize
    AA = chr(Int((97 - 122 + 1) * Rnd() + 122))
    BB= lcase(chr(Int((65 - 90 + 1) * Rnd() + 90)))
    ServU = md5(AA & BB & strpass)
    ServU = AA & BB & ServU
end function
%>

<%
    Pass=Request("md5")
    If Len(Pass)=0 Then Pass="Serv-U密码算法演示"
%>
<head>
<title>Serv-U密码算法器</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>BODY,TD,INPUT{FONT-SIZE:9PT}</style>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<form name="md5pass" method="post" >
明文：<input type="text" name="md5" value="<%=Pass%>">
<input type="submit" name="Submit" value="提交">
</form>
散列：<input type=text size=34 maxlength=16 value='<%=ServU(Pass)%>'>
<BR><BR><BR>
测试环境：SERV-U 5.0 & 5.004<BR>
测试结果：测试通过<BR>
<HR>测试方法：<BR><BR>
输入明文后点提交，而后将下面文本框中的散列复制下来，粘贴到Serv-U的ServUDaemon.ini文件中，而后重新启动Serv-u服务。即可测试密码是否正确。
<BR><BR>
测试时发现，直接在INI文件中添加的账户，无须启动SERV-U即可登陆，但如果你同时添加了一些虚拟目录的话，虚拟目录需要服务器重起时才能生效。
<BR><BR>
另外，如果修改INI时，填写了错误的信息，造成该用户无法登陆，在不重新启动服务的情况下，无论再次怎么修改，该用户也无[屏蔽]常登陆了，解决方法：<BR>
修改该用户名，并将纠正错误的配置信息，即可登陆。