VBS模擬POST上傳文件的代碼

字號:


    改寫自CSDN上的一個(gè)ASP中模擬form上傳文件,即(multipart/form-data)的表單的程序,原程序有些地方寫錯(cuò)了。
    代碼如下:
    'XML Upload Class
    Class XMLUpload
    Private xmlHttp
    Private objTemp
    Private adTypeBinary, adTypeText
    Private strCharset, strBoundary
    Private Sub Class_Initialize()
    adTypeBinary = 1
    adTypeText = 2
    Set xmlHttp = CreateObject("Msxml2.XMLHTTP")
    Set objTemp = CreateObject("ADODB.Stream")
    objTemp.Type = adTypeBinary
    objTemp.Open
    strCharset = "utf-8"
    strBoundary = GetBoundary()
    End Sub
    Private Sub Class_Terminate()
    objTemp.Close
    Set objTemp = Nothing
    Set xmlHttp = Nothing
    End Sub
    '指定字符集的字符串轉(zhuǎn)字節(jié)數(shù)組
    Public Function StringToBytes(ByVal strData, ByVal strCharset)
    Dim objFile
    Set objFile = CreateObject("ADODB.Stream")
    objFile.Type = adTypeText
    objFile.Charset = strCharset
    objFile.Open
    objFile.WriteText strData
    objFile.Position = 0
    objFile.Type = adTypeBinary
    If UCase(strCharset) = "UNICODE" Then
    objFile.Position = 2 'delete UNICODE BOM
    ElseIf UCase(strCharset) = "UTF-8" Then
    objFile.Position = 3 'delete UTF-8 BOM
    End If
    StringToBytes = objFile.Read(-1)
    objFile.Close
    Set objFile = Nothing
    End Function
    '獲取文件內(nèi)容的字節(jié)數(shù)組
    Private Function GetFileBinary(ByVal strPath)
    Dim objFile
    Set objFile = CreateObject("ADODB.Stream")
    objFile.Type = adTypeBinary
    objFile.Open
    objFile.LoadFromFile strPath
    GetFileBinary = objFile.Read(-1)
    objFile.Close
    Set objFile = Nothing
    End Function
    '獲取自定義的表單數(shù)據(jù)分界線
    Private Function GetBoundary()
    Dim ret(12)
    Dim table
    Dim i
    table = "abcdefghijklmnopqrstuvwxzy0123456789"
    Randomize
    For i = 0 To UBound(ret)
    ret(i) = Mid(table, Int(Rnd() * Len(table) + 1), 1)
    Next
    GetBoundary = "---------------------------" & Join(ret, Empty)
    End Function
    '設(shè)置上傳使用的字符集
    Public Property Let Charset(ByVal strValue)
    strCharset = strValue
    End Property
    '添加文本域的名稱和值
    Public Sub AddForm(ByVal strName, ByVal strValue)
    Dim tmp
    tmp = "\r\n--$1\r\nContent-Disposition: form-data; name=""$2""\r\n\r\n$3"
    tmp = Replace(tmp, "\r\n", vbCrLf)
    tmp = Replace(tmp, "$1", strBoundary)
    tmp = Replace(tmp, "$2", strName)
    tmp = Replace(tmp, "$3", strValue)
    objTemp.Write StringToBytes(tmp, strCharset)
    End Sub
    '設(shè)置文件域的名稱/文件名稱/文件MIME類型/文件路徑或文件字節(jié)數(shù)組
    Public Sub AddFile(ByVal strName, ByVal strFileName, ByVal strFileType, ByVal strFilePath)
    Dim tmp
    tmp = "\r\n--$1\r\nContent-Disposition: form-data; name=""$2""; filename=""$3""\r\nContent-Type: $4\r\n\r\n"
    tmp = Replace(tmp, "\r\n", vbCrLf)
    tmp = Replace(tmp, "$1", strBoundary)
    tmp = Replace(tmp, "$2", strName)
    tmp = Replace(tmp, "$3", strFileName)
    tmp = Replace(tmp, "$4", strFileType)
    objTemp.Write StringToBytes(tmp, strCharset)
    objTemp.Write GetFileBinary(strFilePath)
    End Sub
    '設(shè)置multipart/form-data結(jié)束標(biāo)記
    Private Sub AddEnd()
    Dim tmp
    tmp = "\r\n--$1--\r\n"
    tmp = Replace(tmp, "\r\n", vbCrLf)
    tmp = Replace(tmp, "$1", strBoundary)
    objTemp.Write StringToBytes(tmp, strCharset)
    objTemp.Position = 2
    End Sub
    '上傳到指定的URL,并返回服務(wù)器應(yīng)答
    Public Function Upload(ByVal strURL)
    Call AddEnd
    xmlHttp.Open "POST", strURL, False
    xmlHttp.setRequestHeader "Content-Type", "multipart/form-data; boundary=" & strBoundary
    'xmlHttp.setRequestHeader "Content-Length", objTemp.size
    xmlHttp.Send objTemp
    Upload = xmlHttp.responseText
    End Function
    End Class
    Dim UploadData
    Set UploadData = New XMLUpload
    UploadData.Charset = "utf-8"
    UploadData.AddForm "content", "Hello world" '文本域的名稱和內(nèi)容
    UploadData.AddFile "file", "test.jpg", "image/jpg", "test.jpg"
    WScript.Echo UploadData.Upload("http://example.com/takeupload.php")
    Set UploadData = Nothing