我很困惑为什么这不起作用似乎找不到任何问题。
这是代码。
Public Const MULTIPART_BOUNDARY = "speed"
Function getBalance() As String
Dim sEntityBody As String
Dim postBody() As Byte
Dim username As String
Dim password As String
username = CStr(frmMain.txtUser.text)
password = CStr(frmMain.txtPass.text)
sEntityBody = "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""function""" & vbCrLf & vbCrLf & "balance" & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""username""" & vbCrLf & vbCrLf & username & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""password""" & vbCrLf & vbCrLf & password & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & "--" & vbCrLf
postBody = StrConv(sEntityBody, vbFromUnicode)
Dim xhr As Object
Set xhr = CreateObject("WinHttp.WinHttpRequest.5.1")
xhr.Option(WinHttpRequestOption_EnableRedirects) = False
If xhr Is Nothing Then Set xhr = CreateObject("WinHttp.WinHttpRequest")
If xhr Is Nothing Then Set xhr = CreateObject("MSXML2.ServerXMLHTTP")
If xhr Is Nothing Then Set xhr = CreateObject("Microsoft.XMLHTTP")
xhr.open "POST", "http://poster.example.com", False
xhr.setRequestHeader "User-Agent", "Alalala"
xhr.setRequestHeader "Content-Type", "multipart/form-data; boundary=" & MULTIPART_BOUNDARY
xhr.setRequestHeader "Content-Length", Len(sEntityBody)
xhr.send "" + sEntityBody 'postBody 'URLEncode(sEntityBody)
If xhr.Status = 200 Then
getBalance = xhr.responseText
Else
frmMain.addToChatbox "Failed at getting response from blah ErrCode:" & xhr.Status
End If
End Function
现在下面的工作(虽然它只是一个 HTML 表格)。
<form
method="post"
action="http://poster.example.com/"
enctype="multipart/form-data">
<input type="hidden" name="function" value="balance">
<input type="text" name="username" value="blah">
<input type="text" name="password" value="blah">
<input type="submit" value="Send">
</form>
这是一个数据包嗅探。(之后将主机等更改为示例)
POST / HTTP/1.1..User-Agent:Alalala..Content-Type:multipart/form-data;边界=速度..内容长度:233..接受:/ ..主机:poster.example.com..连接:保持活动..--速度..内容分配:表单数据;name="function"..balance..--speed..Content-Dispostion: form-data; name="username"..blah..--speed..Content-Dispostion: form-data; 名称=“密码”..废话..--速度--..
响应为空
HTTP/1.1 200 OK..日期:2010 年 10 月 7 日星期四 20:31:20 GMT..服务器:Apache..内容长度:0..连接:关闭..内容类型:文本/html;字符集=UTF-8....
PS> 不必发送带有值 Send 的提交按钮,所以如果有人想知道,那就不是它。它可能是什么,我从嗅探中注意到的是,它将标头 + 发布数据(上传数据)作为一个数据包发送,而 firefox/chrome 将它作为 2 个单独的数据包发送。
谢谢