Download world button does not download a valid .zip file

[CoWinkKeyDinkInc]

I clicked on the download world button while the Minecraft server was turned off, and once it finished downloading I tried to open it up in Ark, and it says the file is not actually a zip archive. I copied it over to another computer and tried opening it using macOS Archive Utility and that also fails. I know about using the scp command to download a copy using that so I am fine, as that downloads a legitimate copy

[Raekye]

I'll have to look into this. Thanks for letting me know

[Raekye]

This is hopefully fixed in the minecraft server wrapper (it now uses shutil.make_archive).
I tested the zips on both windows and linux.
Please let me know if the problem persists - otherwise I will close this in a weak.

Thanks!

[mbainter]

Unfortunately it still doesn't work for me. I just started up mine, stopped minecraft, took a backup, and downloaded the zip:

$ unzip -t minecraft-world-2020_apr_02.zip 
Archive:  /home/mbainter/Downloads/minecraft-world-2020_apr_02.zip
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of /home/mbainter/Downloads/minecraft-world-2020_apr_02.zip or
        /home/mbainter/Downloads/minecraft-world-2020_apr_02.zip.zip, and cannot find /home/mbainter/Downloads/minecraft-world-2020_apr_02.zip.ZIP, period.

$ file minecraft-world-2020_apr_02.zip 
/home/mbainter/Downloads/minecraft-world-2020_apr_02.zip: Zip archive data, at least v2.0 to extract

7z also gives me:

ERRORS:
Unexpected end of archive

But, as before it's fine on the server itself:

$ unzip -t minecraft-world_backup-2020_04_02-18_11_05-763304.zip 
Archive:  minecraft-world_backup-2020_04_02-18_11_05-763304.zip
    testing: session.lock             OK
...
    testing: region/r.2.-2.mca        OK
No errors detected in compressed data of minecraft-world_backup-2020_04_02-18_11_05-763304.zip.

Downloading via SCP it works fine -- it's just when using the Download button in the UI that something isn't right.

[Raekye]

Hmmm, I just tested on Chrome (previously on Firefox), and it seemed ok for me, not using 7zip though. If you have a chance, could you run grep make_archive /opt/gamocosm/mcsw.py on your server, and let me know if it prints anything? The setup_server_worker.rb should update the minecraft server wrapper every time it boots, but that could hasn't been exercised in a long time (haven't made changes to the server wrapper for a while)

[Raekye]

I'm having trouble reproducing this, I've tried on:

• Windows, Firefox
• Linux, Firefox
• Mac, Firefox
• Mac, Chrome

I'm assuming some people are still having this issue. If you could report:

• Your OS
• Browser
• If you can SSH, the output of grep make_archive /opt/gamocosm/mcsw.py (I want to see if MCSW got updated properly)

Many thanks