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nailbuster / esp8266FTPServer

Simple FTP Server for using esp8266/esp32 SPIFFs
GNU Lesser General Public License v2.1
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Able to download fine but not upload some files #26

Open bill-orange opened 5 years ago

bill-orange commented 5 years ago

I am running esp8266FTPServer on an ESP8266. I have used this library for several years without any issues. I recently had to recompile some old code using the Arduino IDE 1.8.8 plus the newer 2.5 board manager. I am not sure if my problems relate to the new IDE and board manager, insufficient memory or some other unrelated issue. Filezilla has gone through several revisions since I used this code last too.

Here's the problem:

Using Filezilla I can download fine. When I try to upload with Filezillza, many files show a size of zero. If I try to delete them and go again, I get the overwrite message even thought they should be deleted and I still get the zero size file. My sketch seems able to do these operations fine, no problems upload, downloading or deleting if done within the sketch. Free memory is around 32000.

Not only can I not isolate the source of the problem, I am not sure how to go about troubleshooting it,

Thoughts anyone?

stephen-coates commented 5 years ago

Just loaded this today and had the same issue, any attempt to upload results in a zero byte file as does renaming an existing file. After a bit of experimentation I point the finger at Filezilla, WinScp and Windows 10 explorer both upload and rename files without issue. Filezilla appears to upload the file as a hidden file with the filename prefixed by a comma e.g. ,filename and also creates a file named +r,length of uploaded file. Possibly Filezilla is expecting a response from the FTP server before converting these files to the uploaded name but if so it's a piece of FTP arcana that Microsoft and WinScp cheerfully ignore.

tbienvenu commented 4 years ago

I've the same problem as bill-orange, files are 0 length. I found that filezilla closed too quickly connection after send data so the ESP see a available connection but data connection status are closed() before the esp test it. However data are received by the ESP and data.available() return true on the connection.

bill-orange commented 4 years ago

Interesting. I finally gave up and switched to CoreFTP which seems to work fine.

Jahencov commented 4 years ago

Now I see it is similar issue that I had. Some solution applied by me described here: https://github.com/nailbuster/esp8266FTPServer/issues/33