Posting Image files with WebBrowser or Inet?

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September 16th, 2003, 06:28 AM

floaterfan

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How do I post Image files with WebBrowser or Inet?

I hope this is the right place to ask this questions.

Here is my dilemma:
I need to post an image file from Visual Basic to an existing server. I tried to just set the value of the filename but I know this is not possible because the input is type=file, which means that the Value property is read only for security reasons. So now I need to know how to post the data to the site with either the webbrowser control or the inet control. I don’t care which but if it’s the inet control I will need to know how to extract the form data like I have done with the webbrowser control.

Scenario:
Step 1: Login in to the web site that I will need to upload images to.
Seep 2: Navigate to image loading page.
Step 3: Extract form data.
Step 4: Encode Data - I need help with this
Step 5: Post Data - I need help with this

My first question is do I need to encode just the image path, or do I need to encode the actual image data?

My second question is how do I post the data?

Here is the HTML from the form that I want to post to.
******************************************************

Code:

<form name="upload1" action="http://xxxServerxxx/manimage.asp" method="POST" enctype="multipart/form-data">
<input type="hidden" name="cmd" value="savefile">
<input type="hidden" name="sku" value="448755">
<input type="hidden" name="pid" value="505705">
<input type="hidden" name="func" value="savefile">
<input type="hidden" name="randomnumber" value="434896073610">
<span class="t1">Filename:<br>
<input type="file" name="filename" size="18" class="i3" style="width:250px"><p>
<input type="submit" name="uploadfile" value="Click Here To Upload Image" class="sub1">
</form>

******************************************************

Here is the start of some VB code
******************************************************
web = the name of my webbrowser control

Code:

Private Function postImages()

Dim strCMD, strSKU, strPID, strFUNC, strand as String
Dim strPostData, strImgPath as String
Dim bytPostData() as Byte
Dim varPostData as Variant

      strCMD = web.document.upload1.cmd.Value
      strSKU = web.document.upload1.sku.Value
      strPID = web.document.upload1.pid.Value
      strFUNC = web.document.upload1.func.Value
      strRAND = web.document.upload1.randomnumber.Value

       strImgPath = "F:\YRGVB\LMS\img\myimg.jpg"

    	strPostData = "cmd=" & strCMD & _
                    "&sku=" & strSKU & _
                    "&pid=" & strPID & _
                    "&func=" & strFUNC & _
                    "&randomnumber=" & strRAND & _
                    "&filename=" & strImgPath

	strHeader = "????????????????????????????????????"

	'Do some type of encoding with strPostData and set to bytPostData   ????? 
	encodePostData(bytPostData, strPostData)

	'set varPostData to bytPostData						  ?????
	varPostData = bytPostData
	
          web.navigate "http://xxxServerxxx/manimage.asp", 0, "", varPostData, strHeader

End Function

Private Sub encodePostData(ByRef ByteArray() As Byte, ByVal strPostData As String)

'I don’t know what to do here

End Sub

Please help with the encoding, again I don’t know if I should encode the file path or the actual file.

Please help with the headers and the posting.

Any help is appreciated.
Thanks,
Sam

Last edited by floaterfan : September 16th, 2003 at 05:01 PM.

September 17th, 2003, 01:00 AM

cleverpig

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Some Knowledge about upload:
http://www.winnetmag.com/Articles/I...m?ArticleID=565

September 17th, 2003, 02:37 PM

Doug G

Grumpier Old Moderator

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Is FTP out of the question? The Internet Transfer Control (sometimes flakey) supports ftp transfers, and there are some free 3rd party ftp controls floating around too.

I don't know how to manipulate the header to post your file automatically using the web browser control.

September 23rd, 2003, 03:07 PM

floaterfan

Junior Member

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Time spent in forums: < 1 sec
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Thank you for your input

Cleverpig - Thank you for the link, I figured out the headers by catching the post data with the Webbrowser control, but I still do not know how the data is encoded.

Doug G - Thank you, but ftp will not work for this.

Sam

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