B4J Question B4J and SFTP

[juventino883]

Hi, i'm trying to use the Jsch lib for B4A in B4J due that i read that Erel said it should work in B4J but is not tested yet (https://www.b4x.com/android/forum/t...sed-on-jsch-tutorial.26994/page-2#post-228078), I try to make a test project for upload a file to a sftp server and everithing seems to work, the program sucessfully connects to the server and upload the file, but when you try to open the file it is partially uploaded for example a picture, it upload half picture or sometimes creates the file but with no info (0kb), this is the log i get:

Waiting for debugger to connect...
Program started.
0: Success
    at com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2629)
    at com.jcraft.jsch.ChannelSftp._put(ChannelSftp.java:545)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:491)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:461)
    at anywheresoftware.b4a.objects.SFtpWrapper$1.run(SFtpWrapper.java:116)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
/home/iccca/USL2.jpg, Success=false
0: Success
0: Success
    at com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2629)
    at com.jcraft.jsch.ChannelSftp._put(ChannelSftp.java:545)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:491)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:461)
    at anywheresoftware.b4a.objects.SFtpWrapper$1.run(SFtpWrapper.java:116)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
/home/iccca/USL2.jpg, Success=false
0: Success

and this is the code:

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Dim sftp1 As SFtp
    Private Button1 As Button
End Sub

Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    MainForm.SetFormStyle("DEFAULT")
    MainForm.RootPane.LoadLayout("main") 'Load the layout file.
    sftp1.Initialize("sftp1", "usr", "pswrd", "srvr", 22)
     sftp1.SetKnownHostsStore(File.DirApp, "hosts.txt")
    MainForm.Show
End Sub

Sub sftp1_PromptYesNo (Message As String)
   Dim res As Int = fx.Msgbox2(MainForm,Message, "", "Yes", "", "No",Null)
   'The next line might be a bit confusing. It is a condition.
   'The value will be True if res equals to DialogResponse.POSITIVE.
   sftp1.SetPromptResult(res = fx.DialogResponse.POSITIVE)
   
   'sftp1.SetPromptResult(True)
End Sub

Sub sftp1_ShowMessage (Message As String)
   fx.Msgbox(MainForm,Message, "")
End Sub

Sub sftp1_UploadProgress (ServerPath As String, TotalUploaded As Long, Total As Long)
    Dim s As String
    s = "Uploaded " & Round(TotalUploaded / 1000) & "KB"
    If Total > 0 Then s = s & " out of " & Round(Total / 1000) & "KB"
    Log(s)
End Sub

Sub sftp1_UploadCompleted (ServerPath As String, Success As Boolean)
    Log(ServerPath & ", Success=" & Success)
    If Success = False Then Log(LastException.Message)
End Sub


Sub Button1_Action
    sftp1.UploadFile(File.DirAssets,"USL2.jpg","/home/iccca/USL2.jpg")
End Sub

the same code works on b4a.

maybe i forget to initialize something?, or it's better use other lib for sftp??

thanks in advance!!

christian.

 

[Erel]

I found the source of this issue. It is fixed for the next update of B4J.

For now the workaround is to remove the UploadProgress event sub.