Sometimes stuck at Start downloading...

[mariusvn]

Sometimes, when i want to download a jpeg file, the library print Start downloading... and wait indefinitly.

i am already in binary mode.

i think there is a time desync with the socket opening or something like that because it seems that the socket is listening and nothing is answered.

it does block there lib/src/commands/file.dart:94.

We use a Pure-FTPd as server.

I/flutter (29447): [2024-05-17 16:59:18.494143] Download /80/STM6001_DIA_001/SITE80_STM6001_DIA_001_2023-3-30T9_59_31.jpeg to /data/user/0/<APP ID PURPOSELY HIDDEN>/app_flutter/ftpfiles/SITE80_STM6001_DIA_001_2023-3-30T9_59_31.jpeg
I/flutter (29447): [2024-05-17 16:59:18.495056] > SIZE /80/STM6001_DIA_001/SITE80_STM6001_DIA_001_2023-3-30T9_59_31.jpeg
I/flutter (29447): [2024-05-17 16:59:18.800862] < FTPReply =  [code= 213, message= 213 135512]
I/flutter (29447): [2024-05-17 16:59:18.802551] > EPSV
I/flutter (29447): [2024-05-17 16:59:19.110779] < FTPReply =  [code= 229, message= 229 Extended Passive mode OK (|||40092|)]
I/flutter (29447): [2024-05-17 16:59:19.111523] > RETR /80/STM6001_DIA_001/SITE80_STM6001_DIA_001_2023-3-30T9_59_31.jpeg
I/flutter (29447): [2024-05-17 16:59:19.112454] Opening DataSocket to Port 40092
I/flutter (29447): [2024-05-17 16:59:19.442433] < FTPReply =  [code= 226, message= 150-Accepted data connection
I/flutter (29447): 150 132.3 kbytes to download
I/flutter (29447): 226-File successfully transferred
I/flutter (29447): 226 0.000 seconds (measured here), 282.76 Mbytes per second]
I/flutter (29447): [2024-05-17 16:59:19.445156] Start downloading...

[rafadompas]

I have the same problem with downloadfile and uploadfile. But only when Securitytipe = FTPES.

I/flutter (31721): [2024-05-18 19:14:41.078646] < FTPReply = [code= 150, message= 150 Ok to send data.]
I/flutter (31721): [2024-05-18 19:14:41.079077] Start uploading...
I/flutter (31721): porcentaje progreso: 34.04
I/flutter (31721): Total Recibido: 65536
I/flutter (31721): Tamaño fichero: 192512
I/flutter (31721): porcentaje progreso: 68.09
I/flutter (31721): Total Recibido: 131072
I/flutter (31721): Tamaño fichero: 192512
I/flutter (31721): porcentaje progreso: 100.0
I/flutter (31721): Total Recibido: 192512
I/flutter (31721): Tamaño fichero: 192512
I/flutter (31721): FTPConnectException: Timeout reached for Receiving response ! (Response: null)

If Securitytipe is FTP not have problem.
uploadfile send than the file is completed upload but the file in the server is 0 bytes.
and the code stops in the line uploadfile. not continues.
Please is very importan because is very dangerous use ftp without protection FTPES.
Olders versions packages not have this problem. 1.0.0 worked well with FTPES.