Encoding VBScript中的Base64编码字符串_Encoding_Vbscript_Base64_Wsh

Encoding VBScript中的Base64编码字符串

encoding vbscript

Encoding VBScript中的Base64编码字符串,encoding,vbscript,base64,wsh,Encoding,Vbscript,Base64,Wsh,我有一个web服务加载驱动程序，它是一个Windows脚本文件（WSF），其中包括一些VBScript和JavaScript文件。我的web服务要求传入消息是base64编码的。我目前有一个VBScript函数可以实现这一点，但它的效率非常低（内存密集，主要是由于VBScript糟糕的字符串连接） [旁白；是的，我看到了。连接是在1000到10000字节大小的消息之间的循环中发生的。] 我尝试过使用一些自定义字符串连接例程；一个使用数组，另一个使用ADODB.Stream。这些有一点帮助，但我认

我有一个web服务加载驱动程序，它是一个Windows脚本文件（WSF），其中包括一些VBScript和JavaScript文件。我的web服务要求传入消息是base64编码的。我目前有一个VBScript函数可以实现这一点，但它的效率非常低（内存密集，主要是由于VBScript糟糕的字符串连接）

[旁白；是的，我看到了。连接是在1000到10000字节大小的消息之间的循环中发生的。]

我尝试过使用一些自定义字符串连接例程；一个使用数组，另一个使用ADODB.Stream。这些有一点帮助，但我认为如果我有其他的方式来编码信息，而不是通过我自己的VBS函数，会有更大的帮助

是否有其他方式来编码我的消息，更倾向于使用本机Windows方法？

我最初使用的是Antonin Foller提供的一些VBScript代码：和

在搜索安东宁的网站时，我看到他有一些代码，所以我试了一下

最后，我移植了Mark对VBScript的回答中提到的代码（也使用了SO问题中的一些代码），并使用Antonin站点中的and函数来获取使用MSXML编码的函数

我运行了一个快速测试来测量所有四种方法中1500个字符的消息（我需要发送到web服务的平均消息大小）的编码时间：

本机VBScript（VBScript）
引用可打印，使用CDO.Message（QP）
引用的可打印二进制文件，使用CDO.Message（QP二进制文件）
MSXML/ADODB.Stream（MSXML）

结果如下：

Iterations : 10,000 Message Size : 1,500 +-------------+-----------+ + Method | Time (ms) + +-------------+-----------+ | VBScript | 301,391 | +-------------+-----------+ | QP | 12,922 | +-------------+-----------+ | QP (Binary) | 13,953 | +-------------+-----------+ | MSXML | 3,312 | +-------------+-----------+

我最初使用的是Antonin Foller的一些VBScript代码：和

在搜索安东宁的网站时，我看到他有一些代码，所以我试了一下

最后，我移植了Mark对VBScript的回答中提到的代码（也使用了SO问题中的一些代码），并使用Antonin站点中的and函数来获取使用MSXML编码的函数

我运行了一个快速测试来测量所有四种方法中1500个字符的消息（我需要发送到web服务的平均消息大小）的编码时间：

本机VBScript（VBScript）
引用可打印，使用CDO.Message（QP）
引用的可打印二进制文件，使用CDO.Message（QP二进制文件）
MSXML/ADODB.Stream（MSXML）

结果如下：

我还有一些编码器和解码器的完整示例：

编码器：

' This script reads jpg picture named SuperPicture.jpg, converts it to base64
' code using encoding abilities of MSXml2.DOMDocument object and saves
' the resulting data to encoded.txt file

Option Explicit

Const fsDoOverwrite     = true  ' Overwrite file with base64 code
Const fsAsASCII         = false ' Create base64 code file as ASCII file
Const adTypeBinary      = 1     ' Binary file is encoded

' Variables for writing base64 code to file
Dim objFSO
Dim objFileOut

' Variables for encoding
Dim objXML
Dim objDocElem

' Variable for reading binary picture
Dim objStream

' Open data stream from picture
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open()
objStream.LoadFromFile("SuperPicture.jpg")

' Create XML Document object and root node
' that will contain the data
Set objXML = CreateObject("MSXml2.DOMDocument")
Set objDocElem = objXML.createElement("Base64Data")
objDocElem.dataType = "bin.base64"

' Set binary value
objDocElem.nodeTypedValue = objStream.Read()

' Open data stream to base64 code file
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFileOut = objFSO.CreateTextFile("encoded.txt", fsDoOverwrite, fsAsASCII)

' Get base64 value and write to file
objFileOut.Write objDocElem.text
objFileOut.Close()

' Clean all
Set objFSO = Nothing
Set objFileOut = Nothing
Set objXML = Nothing
Set objDocElem = Nothing
Set objStream = Nothing

解码器：

' This script reads base64 encoded picture from file named encoded.txt,
' converts it in to back to binary reprisentation using encoding abilities
' of MSXml2.DOMDocument object and saves data to SuperPicture.jpg file

Option Explicit

Const foForReading          = 1 ' Open base 64 code file for reading
Const foAsASCII             = 0 ' Open base 64 code file as ASCII file
Const adSaveCreateOverWrite = 2 ' Mode for ADODB.Stream
Const adTypeBinary          = 1 ' Binary file is encoded

' Variables for reading base64 code from file
Dim objFSO
Dim objFileIn
Dim objStreamIn

' Variables for decoding
Dim objXML
Dim objDocElem

' Variable for write binary picture
Dim objStream

' Open data stream from base64 code filr
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFileIn   = objFSO.GetFile("encoded.txt")
Set objStreamIn = objFileIn.OpenAsTextStream(foForReading, foAsASCII)

' Create XML Document object and root node
' that will contain the data
Set objXML = CreateObject("MSXml2.DOMDocument")
Set objDocElem = objXML.createElement("Base64Data")
objDocElem.DataType = "bin.base64"

' Set text value
objDocElem.text = objStreamIn.ReadAll()

' Open data stream to picture file
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open()

' Get binary value and write to file
objStream.Write objDocElem.NodeTypedValue
objStream.SaveToFile "SuperPicture.jpg", adSaveCreateOverWrite

' Clean all
Set objFSO = Nothing
Set objFileIn = Nothing
Set objStreamIn = Nothing
Set objXML = Nothing
Set objDocElem = Nothing
Set objStream = Nothing

我还有一些编码器和解码器的完整示例：

编码器：

' This script reads jpg picture named SuperPicture.jpg, converts it to base64
' code using encoding abilities of MSXml2.DOMDocument object and saves
' the resulting data to encoded.txt file

Option Explicit

Const fsDoOverwrite     = true  ' Overwrite file with base64 code
Const fsAsASCII         = false ' Create base64 code file as ASCII file
Const adTypeBinary      = 1     ' Binary file is encoded

' Variables for writing base64 code to file
Dim objFSO
Dim objFileOut

' Variables for encoding
Dim objXML
Dim objDocElem

' Variable for reading binary picture
Dim objStream

' Open data stream from picture
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open()
objStream.LoadFromFile("SuperPicture.jpg")

' Create XML Document object and root node
' that will contain the data
Set objXML = CreateObject("MSXml2.DOMDocument")
Set objDocElem = objXML.createElement("Base64Data")
objDocElem.dataType = "bin.base64"

' Set binary value
objDocElem.nodeTypedValue = objStream.Read()

' Open data stream to base64 code file
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFileOut = objFSO.CreateTextFile("encoded.txt", fsDoOverwrite, fsAsASCII)

' Get base64 value and write to file
objFileOut.Write objDocElem.text
objFileOut.Close()

' Clean all
Set objFSO = Nothing
Set objFileOut = Nothing
Set objXML = Nothing
Set objDocElem = Nothing
Set objStream = Nothing

解码器：

' This script reads base64 encoded picture from file named encoded.txt,
' converts it in to back to binary reprisentation using encoding abilities
' of MSXml2.DOMDocument object and saves data to SuperPicture.jpg file

Option Explicit

Const foForReading          = 1 ' Open base 64 code file for reading
Const foAsASCII             = 0 ' Open base 64 code file as ASCII file
Const adSaveCreateOverWrite = 2 ' Mode for ADODB.Stream
Const adTypeBinary          = 1 ' Binary file is encoded

' Variables for reading base64 code from file
Dim objFSO
Dim objFileIn
Dim objStreamIn

' Variables for decoding
Dim objXML
Dim objDocElem

' Variable for write binary picture
Dim objStream

' Open data stream from base64 code filr
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFileIn   = objFSO.GetFile("encoded.txt")
Set objStreamIn = objFileIn.OpenAsTextStream(foForReading, foAsASCII)

' Create XML Document object and root node
' that will contain the data
Set objXML = CreateObject("MSXml2.DOMDocument")
Set objDocElem = objXML.createElement("Base64Data")
objDocElem.DataType = "bin.base64"

' Set text value
objDocElem.text = objStreamIn.ReadAll()

' Open data stream to picture file
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open()

' Get binary value and write to file
objStream.Write objDocElem.NodeTypedValue
objStream.SaveToFile "SuperPicture.jpg", adSaveCreateOverWrite

' Clean all
Set objFSO = Nothing
Set objFileIn = Nothing
Set objStreamIn = Nothing
Set objXML = Nothing
Set objDocElem = Nothing
Set objStream = Nothing

这是一个不使用ADODB对象的解码示例

option explicit
dim inobj,outobj,infile,myname,state,rec,outfile,content,table(256),bits,c,x,outword
state = 0
const r64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
myname = wscript.scriptfullname
set inobj = createobject("Scripting.FileSystemObject")
set outobj = createobject("Scripting.FileSystemObject")
set infile = inobj.opentextfile(myname,1)
set outfile = outobj.createtextfile("q.png")
for x = 1 to 256 step 1
    table(x) = -1
next
for x = 1 to 64 step 1
    table(1+asc(mid(r64,x,1))) = x - 1
next
bits = 0
do until(infile.atendofstream)
    dim size
    rec = infile.readline
    if (state = 1) then 
        content = mid(rec,2)
        size = len(content)
        for x = 1 to size step 1
            c = table(1+asc(mid(content,x,1)))
            if (c <> -1) then
                if (bits = 0) then
                    outword = c*4
                    bits = 6
                elseif (bits = 2) then
                    outword = c+outword
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    bits = 0
                elseif (bits = 4) then
                    outword = outword + int(c/4)
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    outword = c*64
                    bits = 2
                else
                    outword = outword + int(c/16)
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    outword = c*16
                    bits = 4
                end if
            end if
        next
    end if
    if (rec = "'PAYLOAD") then
        state = 1
    end if
loop
infile.close
outfile.close
wscript.echo "q.png created"
wscript.quit
'PAYLOAD
'iVBORw0KGgoAAAANSUhEUgAAAD4AAAA+CAIAAAD8oz8TAAABoklEQVRo3u2awQrDMAxDl7H/
'/+Xu0EsgSDw7hRF7vWywpO0UW5acjOu6Xmde79ex1+f+GGPACfcqzePXdVvvts7iv6rx56Ou
'8FNYkgyZx9xzZ3TVHfg7VEHdR+o6ZsWV54O/yDvUQj2KzYyH5wof5f14fR97xdPrmjy1ArVQ
'55yteMYzEqma5B2qoM5VBK+OuXUrHutjJ8c59l4z/vV6Vv15PbOjiFRunB/rOcYgIz1jEPek
'nnh+rBPsiYbOaRu/DipzKrqkqNOJdgEIF3mNVLGa7jM9YSReg+t6U/UvFTYqmn13gGeUr9C1
'ul85rlCVgVTHnGeo2xGIdnT3PRR3vbUYhjAJqXxRHxTtslfsrxOe8aziWdlnAukRVPGmuX9P
'KnG0y9Wjv+71IPf8JEMIZxeP9ZHDkvO0z6XoXmlF1APTMIpR38R5qd8ZAa7gc76JaMl+ZwR4
'N0vdn6hRf89+ZwRIXZy/e473bks9sd9uterERvmbKP4end6cVlFRHt2n9mxTN9b3PTzfIco5
'4Ip9mGd1ud8bUriS3Oh6RuC318GofwHqKhl/Nn0DHQAAAABJRU5ErkJggg==

选项显式
dim inobj、outobj、INFLE、myname、state、rec、outfile、content、table（256）、bits、c、x、outword
状态=0
const r64=“abcdefghijklmnopqrstuvxyzabcdefghijklmnopqrstuvxyz012456789+/”
myname=wscript.scriptfullname
set inobj=createobject（“Scripting.FileSystemObject”）
set-outobj=createobject（“Scripting.FileSystemObject”）
set infle=inobj.opentextfile（myname，1）
set outfile=outobj.createtextfile（“q.png”）
对于x=1到256，步骤1
表（x）=-1
下一个
对于x=1到64，步骤1
表（1+asc（mid（r64，x，1））=x-1
下一个
位=0
直到（填充atendofstream）
暗淡的尺寸
rec=infle.readline
如果（状态=1），则
内容=中间（记录，2）
大小=长度（内容）
对于x=1，调整步骤1的大小
c=表（1+asc（mid（内容，x，1）））
如果（c-1）那么
如果（位=0），则
向外=c*4
位=6
elseif（位=2）则
向外=c+向外
输出文件写入（chr（clng（“&H”&hex（输出模块256）））
位=0
elseif（位=4）则
外向=外向+内（c/4）
输出文件写入（chr（clng（“&H”&hex（输出模块256）））
向外=c*64
位=2
其他的
外向=外向+外向（c/16）
输出文件写入（chr（clng（“&H”&hex（输出模块256）））
向外=c*16
位=4
如果结束
如果结束
下一个
如果结束
如果（rec=“'PAYLOAD”），则
状态=1
如果结束
环
结束
关闭
wscript.echo“q.png已创建”
wscript.quit
“有效载荷
'Ivborw0kgoaaaansuhueugaaad4aaaa+caiaad8oz8taaabokleqvro3u2awqrdmaxdl7h/
'/+xu0esgsdw7hrf7vwwwpo0uw5acjou6xmde79ex1+f+ggpacfcqzepxdvvvvts7iv6rx56ou
'8FNYkgyZx9xzZ3TVHfg7VEHdR+o6ZsWV54O/yDvUQj2KzYyH5wof5f14fR97xdPrmjy1ArVQ
'55yteMYzEqma5B2qoM5VBK+OuxurhutJ8C59L4Z/vV6Vv15PbOjiFRunB/rOcYgIz1jEPek
'nnh+rBPsiYbOaRu/DipzKrqkqNOJdgEIF3mNVLGa7jM9YSReg+t6U/UvFTYqmn13gGeUr9C1
'UL85RLCVGVTHNGEO2xGIDNT3PRR3VBUYHJAJQXXRHXTTSLFSRXOE8AZWDLNAUKRVGMUX9P
'KnG0y9Wjv+71IPF8JEMIZEXEP9ZHDKVO0Z6XOXMLF1APTMIPR38R5QD8ZAA7GC76JAML+ZwR4
'N0vdn6hRf89+ZwRIXZy/E473BKS9SD9UTERRVMBKP4END6CVLFRHT2N9MXTN9B3PTZFICO5
'4Ip9mGd1ud8bUriS3Oh6RuC318GofwHqKhl/NN0DHQAAABJRU5ERKJGG==

这是一个不使用ADODB对象的解码示例

option explicit
dim inobj,outobj,infile,myname,state,rec,outfile,content,table(256),bits,c,x,outword
state = 0
const r64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
myname = wscript.scriptfullname
set inobj = createobject("Scripting.FileSystemObject")
set outobj = createobject("Scripting.FileSystemObject")
set infile = inobj.opentextfile(myname,1)
set outfile = outobj.createtextfile("q.png")
for x = 1 to 256 step 1
    table(x) = -1
next
for x = 1 to 64 step 1
    table(1+asc(mid(r64,x,1))) = x - 1
next
bits = 0
do until(infile.atendofstream)
    dim size
    rec = infile.readline
    if (state = 1) then 
        content = mid(rec,2)
        size = len(content)
        for x = 1 to size step 1
            c = table(1+asc(mid(content,x,1)))
            if (c <> -1) then
                if (bits = 0) then
                    outword = c*4
                    bits = 6
                elseif (bits = 2) then
                    outword = c+outword
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    bits = 0
                elseif (bits = 4) then
                    outword = outword + int(c/4)
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    outword = c*64
                    bits = 2
                else
                    outword = outword + int(c/16)
                    outfile.write(chr(clng("&H" & hex(outword mod 256))))
                    outword = c*16
                    bits = 4
                end if
            end if
        next
    end if
    if (rec = "'PAYLOAD") then
        state = 1
    end if
loop
infile.close
outfile.close
wscript.echo "q.png created"
wscript.quit
'PAYLOAD
'iVBORw0KGgoAAAANSUhEUgAAAD4AAAA+CAIAAAD8oz8TAAABoklEQVRo3u2awQrDMAxDl7H/
'/+Xu0EsgSDw7hRF7vWywpO0UW5acjOu6Xmde79ex1+f+GGPACfcqzePXdVvvts7iv6rx56Ou
'8FNYkgyZx9xzZ3TVHfg7VEHdR+o6ZsWV54O/yDvUQj2KzYyH5wof5f14fR97xdPrmjy1ArVQ
'55yteMYzEqma5B2qoM5VBK+OuXUrHutjJ8c59l4z/vV6Vv15PbOjiFRunB/rOcYgIz1jEPek
'nnh+rBPsiYbOaRu/DipzKrqkqNOJdgEIF3mNVLGa7jM9YSReg+t6U/UvFTYqmn13gGeUr9C1
'ul85rlCVgVTHnGeo2xGIdnT3PRR3vbUYhjAJqXxRHxTtslfsrxOe8aziWdlnAukRVPGmuX9P
'KnG0y9Wjv+71IPf8JEMIZxeP9ZHDkvO0z6XoXmlF1APTMIpR38R5qd8ZAa7gc76JaMl+ZwR4
'N0vdn6hRf89+ZwRIXZy/e473bks9sd9uterERvmbKP4end6cVlFRHt2n9mxTN9b3PTzfIco5
'4Ip9mGd1ud8bUriS3Oh6RuC318GofwHqKhl/Nn0DHQAAAABJRU5ErkJggg==

选项显式
dim inobj、outobj、INFLE、myname、state、rec、outfile、content、table（256）、bits、c、x、outword
状态=0
const r64=“abcdefghijklmnopqrstuvxyzabcdefghijklmnopqrstuvxyz012456789+/”
myname=wscript.scriptfullname
set inobj=createobject（“Scripting.FileSystemObject”）
set-outobj=createobject（“Scripting.FileSystemObject”）
set infle=inobj.opentextfile（myname，1）
set outfile=outobj.createtextfile（“q.png”）
对于x=1到256，步骤1
表（x）=-1
下一个
对于x=1到64，步骤1
表（1+asc（mid（r64，x，1））=x-1
下一个
位=0
直到（填充atendofstream）
暗淡的尺寸
rec=infle.readline
如果（状态=1），则
内容=中间（记录，2）
大小=长度（内容）
对于x=1，调整步骤1的大小
c=表（1+asc（mid（内容，x，1）））
如果（c-1）那么
如果（位=0），则
向外=c*4
Function Base64Encode(sText)
 Set oNode = CreateObject("Msxml2.DOMDocument.3.0").CreateElement("base64")
 oNode.dataType = "bin.base64"
 oNode.nodeTypedValue =Stream_StringToBinary(sText)
 Base64Encode = oNode.text
 Set oNode = Nothing
End Function

Function Base64Decode(ByVal vCode)
 Set oNode = CreateObject("Msxml2.DOMDocument.3.0").CreateElement("base64")
 oNode.dataType = "bin.base64"
 oNode.text = vCode
 Base64Decode = Stream_BinaryToString(oNode.nodeTypedValue)
 Set oNode = Nothing
End Function

Function Stream_StringToBinary(Text)
 Set BinaryStream = CreateObject("ADODB.Stream")
 BinaryStream.Type = 2
' All Format =>  utf-16le - utf-8 - utf-16le
 BinaryStream.CharSet = "us-ascii"
 BinaryStream.Open
 BinaryStream.WriteText Text
 BinaryStream.Position = 0
 BinaryStream.Type = 1
 BinaryStream.Position = 0
 Stream_StringToBinary = BinaryStream.Read
 Set BinaryStream = Nothing
End Function

Function Stream_BinaryToString(Binary)
 Set BinaryStream = CreateObject("ADODB.Stream")
 BinaryStream.Type = 1
 BinaryStream.Open
 BinaryStream.Write Binary
 BinaryStream.Position = 0
 BinaryStream.Type = 2
 ' All Format =>  utf-16le - utf-8 - utf-16le
 BinaryStream.CharSet = "utf-8"
 Stream_BinaryToString = BinaryStream.ReadText
 Set BinaryStream = Nothing
End Function

''''''''''''''''''''''''''''''''''''''''''''''Testing'''''''''''''''''''''''''''''''''''''''''

arr=array("Hello","&Welcome","To My Program")
For Each Endcode In arr
 WSH.Echo Base64Encode(Endcode)
Next

arr=array("2LPZhNin2YU==","R29vZA==","QnkhIQ==")
For Each Decode In arr
 WSH.Echo Base64Decode(Decode)
Next