我总是使用以下脚本在经典asp中上传文件,但它停止工作,给我这个错误
vbscript运行时错误800a01a8
需要对象'项目(...)'
我调查了一下,我认为问题出在带有BuildUploadRequest函数的文件upload.asp中,但我真的不明白为什么
<form method="POST" action="landing-page.asp" ENCTYPE="multipart/form-data">
<input type="file" name="file">
<input type="hidden" name="key" value="0">
<input type="submit" name="send" value="1">
</form>
byteCount = Request.TotalBytes
RequestBin = Request.BinaryRead(byteCount)
Dim UploadRequest
Set UploadRequest = CreateObject("Scripting.Dictionary")
BuildUploadRequest(RequestBin) '//function defined in upload.asp
if UploadRequest.Item("key").Item("Value")="0" then '//this is the line giving the error
'//code here...
end if
Sub BuildUploadRequest(RequestBin)
PosBeg = 1
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
boundary = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
boundaryPos = InstrB(1,RequestBin,boundary)
'//Get all data inside the boundaries
Do until (boundaryPos=InstrB(RequestBin,boundary & getByteString("--")))
'//Members variable of objects are put in a dictionary object
Dim UploadControl
Set UploadControl = CreateObject("Scripting.Dictionary")
'//Get an object name
Pos = InstrB(BoundaryPos,RequestBin,getByteString("Content-Disposition"))
Pos = InstrB(Pos,RequestBin,getByteString("name="))
PosBeg = Pos+6
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(34)))
Name = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
PosFile = InstrB(BoundaryPos,RequestBin,getByteString("filename="))
PosBound = InstrB(PosEnd,RequestBin,boundary)
'//Test if object is of file type
If PosFile<>0 AND (PosFile<PosBound) Then
'//Get Filename, content-type and content of file
PosBeg = PosFile + 10
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(34)))
FileName = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
'//Add filename to dictionary object
UploadControl.Add "FileName", FileName
Pos = InstrB(PosEnd,RequestBin,getByteString("Content-Type:"))
PosBeg = Pos+14
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
'//Add content-type to dictionary object
ContentType = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
UploadControl.Add "ContentType",ContentType
'//Get content of object
PosBeg = PosEnd+4
PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
Value = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
Else
'//Get content of object
Pos = InstrB(Pos,RequestBin,getByteString(chr(13)))
PosBeg = Pos+4
PosEnd = InstrB(PosBeg,RequestBin,boundary)-2
Value = getString(MidB(RequestBin,PosBeg,PosEnd-PosBeg))
End If
'//Add content to dictionary object
UploadControl.Add "Value" , Value
'//Add dictionary object to main dictionary
'//response.write name & "<br>"
UploadRequest.Add name, UploadControl
'//Loop to next object
BoundaryPos=InstrB(BoundaryPos+LenB(boundary),RequestBin,boundary)
Loop
End Sub
'//String to byte string conversion
Function getByteString(StringStr)
For i = 1 to Len(StringStr)
charx = Mid(StringStr,i,1)
getByteString = getByteString & chrB(AscB(charx))
Next
End Function
'//Byte string to string conversion
Function getString(StringBin)
getString =""
For intCount = 1 to LenB(StringBin)
getString = getString & chr(AscB(MidB(StringBin,intCount,1)))
Next
End Function
此代码在每个项目中始终正常运行,但现在它无法在任何地方运行。所以我不能编辑和使用其他功能,我需要理解为什么它不再起作用
答案 0 :(得分:21)
修复#1 - 卸载&#34; KB3104002 IE11的累积安全更新&#34;
修复#2 - 将所有字节数组复制到一个字节值字符串中并对其进行处理,或者提供替代在数组上进行自己迭代的instrb。
Function InstrBNew(startPos, inputArray, searchChar)
if LenB(searchChar) = 1 Then
Dim loc
For loc = startPos to Lenb(inputArray)
if MidB(inputArray, loc, 1) = searchChar then Exit For
Next
InstrBNew = loc
Else
InstrBNew = InstrB(startPos, inputArray, searchChar)
End If
End Function
修复#3 - Microsoft发布了一个修补程序。这将在2016年1月向所有人发布。您可以在这里尽早得到它。 https://support.microsoft.com/en-us/kb/3125446
问题似乎是vbScript中的InstrB函数现在在以下条件下返回值1.
如果您正在搜索字符串,或者您正在搜索多字节模式,那么InstrB正常工作。
PosEnd = InstrB(PosBeg, ByteArray, chrb(13))
在我损坏的系统上,即使在位置1没有字节值13,该函数也总是返回1。当搜索字节数组时,它返回1为任何值。经典的ASP文件上传组件,这就是为什么我们都在这个线程上运行,因为他们正在解析那个字节数组寻找分隔符。
PosEnd = InstrB(PosBeg,ByteArray,getByteString("FormBoundary"))
PosEnd = InstrB(PosBeg,ByteArray,getByteString(vbCRLF))
PosEnd = InstrB(PosBeg,"Normal string", chrb(103)) ' Search for letter g in a string
以上这些行正常并且符合预期。多字节搜索和匹配字符串工作预期。
这个问题昨晚在多台服务器上同时发生。我看到昨晚Windows系统更新也在运行。缩小范围,我发现MS15-124(KB3的累积安全更新KB3104002)包含vbscript.dll的更新。我删除了此更新,现在代码恢复正常工作。
我在他们的&#34; IE Connect&#34;上提出了一个问题。系统,因为它包含在IE更新中,但我不确定它是否是正确的位置。
我已附上测试用例。在破碎的系统上,它将返回&#34; 5,1,5和#34;。在工作系统上,它将返回&#34; 5,5,5和#34;
希望得到解决方案。有些旧代码在我无法访问的系统上运行。
' Test.vbs
Dim byteArray, byteArray2, byteArray3, bPosition
Dim responseText
' byte string
' "hello hello"
byteArray = chrb(104) & chrb(101) & chrb(108) & chrb(108) & chrb(111) & chrb(32) & chrb(104) & chrb(101) & chrb(108) & chrb(108) & chrb(111) & chrb(0)
' byte array - What Response.BinaryRead is
byteArray2 = TextToBytes(byteArray)
' Vartype: http://stackoverflow.com/questions/3281355/get-the-type-of-a-variable-in-vbscript
ResponseText = ResponseText + "blen: " & lenb(byteArray) & vbCRLF
ResponseText = ResponseText + "type: " & vartype(byteArray) & vbCRLF
ResponseText = ResponseText + "blen: " & lenb(byteArray2) & vbCRLF
ResponseText = ResponseText + "type: " & vartype(byteArray2) & vbCRLF
bPosition = instrb(1, byteArray, chrb(111))
ResponseText = ResponseText + "Position in string: " & bPosition & vbCRLF
bPosition = instrb(1, byteArray2, chrb(111))
ResponseText = ResponseText + "Position in byte array: " & bPosition & vbCRLF
bPosition = instrb(1, byteArray2, chrb(111) & chrb(32))
ResponseText = ResponseText + "Position in byte array: " & bPosition & vbCRLF
WScript.Echo ResponseText
' Converts a string (8) to a vbArray of bytes (8192 + 17)
' I'm not sure how else to create a vbArray of bytes. It does not seem to be a common data type in vbscript
Private Function TextToBytes(ByRef pbinBinaryData)
Dim lobjRs
Dim llngLength
Dim lbinBuffer
CONST adLongVarBinary = 205
llngLength = LenB(pbinBinaryData)
Set lobjRs = CreateObject("ADODB.Recordset")
Call lobjRs.Fields.Append("BinaryData", adLongVarBinary, llngLength)
Call lobjRs.Open()
Call lobjRs.AddNew()
Call lobjRs.Fields("BinaryData").AppendChunk(pbinBinaryData)
Call lobjRs.Update()
lbinBuffer = lobjRs.Fields("BinaryData").GetChunk(llngLength)
Call lobjRs.Close()
Set lobjRs = Nothing
TextToBytes = lbinBuffer
End Function
答案 1 :(得分:1)
我在经典ASP中遇到了同样的问题,即使我在调试器中验证它不应该是有问题的字符位于第17位,InStrB突然返回1。
我为InStrB编写了以下替换函数(仅用于查找1个字符时)。我是一个蹩脚的VBS程序员,所以,请随意清理它。但它似乎确实有用......
Private Function findCharInStrB(startPos, inputArray, searchChar)
Dim loc
For loc = startPos to Len(inputArray)
if MidB(inputArray, loc, 1) = searchChar then Exit For
Next
findCharInStrB = loc
End Function
答案 2 :(得分:1)
Microsoft已发布修补程序以解决此问题。
答案 3 :(得分:0)
请尝试使用此上传代码(信用于Lewis Moten):http://planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=8525&lngWId=4
我最近在将网站迁移到较新版本的Windows Server时遇到了同样的问题。使用Lewis Moten的上传代码来解决问题。
如果链接死亡,代码也会发布在this answer。
答案 4 :(得分:0)
由于低代表我无法回复原始评论,但是如果你无法使用普通的控制面板方法删除更新,就像我不能(它没有出现在卸载列表中)以下是使用Powershell和命令行的方法:
卸载“KB3104002 IE11累积安全更新”的临时解决方法:
执行以下操作以检查是否已安装更新:
如果已安装更新,请继续:
警告:KB3104002被列为“关键安全更新”according to Microsoft所以我不建议永远忽略此更新,但作为此更新导致的问题的临时解决方案,这就是我选择了。我想微软将发布一个更新,这个更新处理它显然导致ASP代码仍然在使用的大屠杀。