Is it possible use HttpUtils2 to upload file?

rossati

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Longtime User
hello

I have removed httputils2 and used a script of Don (thanks Don) which I include, below how I coded this:

B4X:
Sub Camera1_PictureTaken (Data() As Byte)
   Dim dir As String = File.DirRootExternal
   camEx.SavePictureToFile(Data, dir, fileName)
   camEx.StartPreview 'restart preview   
   'send a broadcast intent to the media scanner to force it to scan the saved file.
   Dim Phone As Phone
   Dim i As Intent
   i.Initialize("android.intent.action.MEDIA_SCANNER_SCAN_FILE", "file://" & File.Combine(dir,fileName))
   Phone.SendBroadcastIntent(i)
   save_and_rotate(dir, fileName)
  Dim NV As Map
  NV.Initialize
  NV.Put("width", parameters.Get("width"))
  NV.Put("height", parameters.Get("height"))
  NV.Put("action", "upload")
  Dim files As List
  files.Initialize
  Dim fd As FileData
  fd.Initialize
  fd.dir = File.DirRootExternal
  fd.fileName = fileName
  fd.KeyName = "fileUpload"
  fd.ContentType = "application/octet-stream"
  files.Add(fd)
     hc.Initialize("hc")
       Dim req As HttpRequest
'       req = MultipartPost.CreatePostRequest("http://rete.condorinformatique.com/upload.php", NV, files)
       req = MultipartPost.CreatePostRequest("http://ises.senioresitalia.org/upload.php", NV, files)
       hc.Execute(req, 1)
End Sub
Sub hc_ResponseError (Response As HttpResponse, Reason As String, StatusCode As Int, TaskId As Int)
    If Response <> Null Then
        Log("error: " & Response.GetString("utf8") & " " & StatusCode)
    End If
    Log("error: " & Reason & " " & StatusCode)
End Sub
Sub hc_ResponseSuccess (Response As HttpResponse, TaskId As Int)
    out.InitializeToBytesArray(0) ' I expect less than 2000 bytes here
      Response.GetAsynchronously("Response", out, True, TaskId)
    Log("response: " & Response.GetString("utf8") )
End Sub
Sub Response_StreamFinish (Success As Boolean, TaskId As Int)
    Dim another_buffer () As Byte
    another_buffer = out.ToBytesArray
    Log (BytesToString(another_buffer, 0, another_buffer.Length, "UTF8"))
End Sub
It my be a Server problem, the commented CreatePostRequest doesn't works; you can test yourself, the site simple echoes POST variables, something like this:
B4X:
response: 1945624452<pre>Array
(
    [fileUpload] => Array
        (
            [name] => image.jpg
            [type] => application/octet-stream
            [tmp_name] => /tmp/phpfsBzQJ
            [error] => 0
            [size] => 151663
        )

)
Array
(
    [width] => 640
    [height] => 480
    [action] => upload
)
Regards
John
 

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  • MultipartPost.bas
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EvgenyB4A

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Do you mean "GET" or "POST"? My server expects POST.
If you mean the file format, my server can get any file format. If I send the files from Windows PC web client app, the server gets the files.
I tried to send files using MultipartPost example and my server also see and gets the files. But if I try Job.Postfile the server see the request, but don't see the file.
 
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EvgenyB4A

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Licensed User
Longtime User
Yes. My server expects POST. As I can see that there is the difference between sending files by mutipartpost and job.Postfile. Maybe I need to change the asp.net page settings in order to get files by Job.Postfile?
 
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nwhitfield

Active Member
Licensed User
Longtime User
I have upload photos from one of my apps using httputils2; the api script on the server expects multipart/form data, consisting of two text fields, USERKEY and APPKEY, which together identify the device, then the JPEG image, which the script finds in the usual $_FILES array on the server (I'm using PHP).

Happy to share the full code if you want, but essentially what I do is use stringbuilder to create my form data, appending first the boundary strings and the text fields.

I convert that to a bytes array, and initialise a stream as a bytes array, to which I copy first the headers, and then the JPEG image from the device, and finally the trailing bit of the form - the final boundary. Flush the stream, and the you can post it using the .PostBytes method, and setting the headers of the request, like this:

B4X:
Dim uploader As HttpJob
uploader.Initialize("upload",Me)
uploader.PostBytes(uploadURL,formStream.ToBytesArray)
uploader.GetRequest.SetContentType("multipart/form-data; boundary=" & boundary)
uploader.GetRequest.SetHeader("User-Agent",BLUF.blufVersion)
 
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