RConObserver error

[marceltoepler]

I try to use RConObserver like this:

from observer import RConObserver
observer = RConObserver("127.0.0.1", "xxxxx", 25565)

When I try to run the overviewer now, following error appears:

2016-01-29 23:31:45 E Partial traceback:
  File "/usr/local/bin/minecraft-scripts/overviewer/config", line 21, in <module>
    observer = RConObserver("127.0.0.1", "xxxxx", 25565)
  File "/usr/lib/python2.7/dist-packages/overviewer_core/observer.py", line 407, in __init__
    self.conn.login(password)
  File "/usr/lib/python2.7/dist-packages/overviewer_core/rcon.py", line 89, in login
    self.send(3, password)
  File "/usr/lib/python2.7/dist-packages/overviewer_core/rcon.py", line 71, in send
    res_len, res_id, res_type = struct.unpack("<iii", self.sock.recv(12))
error: unpack requires a string argument of length 12

Is my config wrong or someting else?

[CounterPillow]

What version of the minecraft server are you trying to communicate with?

[CounterPillow]

I just pushed a commit which may fix this, let me know if the error is gone now (and whether it was 100% reproducible in the first place)

[marceltoepler]

I'm using Spigot version 1.8.
Using the patched version of rcon.py seems like the same error appears. :/

2016-01-30 14:27:59 E Partial traceback: File "/usr/local/bin/minecraft-scripts/overviewer/config", line 21, in <module> observer = RConObserver("127.0.0.1", "xxxxx", 25565) File "/usr/lib/python2.7/dist-packages/overviewer_core/observer.py", line 407, in __init__ self.conn.login(password) File "/usr/lib/python2.7/dist-packages/overviewer_core/rcon.py", line 90, in login self.send(3, password) File "/usr/lib/python2.7/dist-packages/overviewer_core/rcon.py", line 72, in send struct.unpack("<iii", self.sock.recv(12, socket.MSG_WAITALL)) error: unpack requires a string argument of length 12

[CounterPillow]

Huh, interesting. The only way this could happen as far as I can tell is if the rcon server closes the connection prematurely or if, according to the recv(2) man-page, a signal is caught or an error occurs.

Perhaps the password is invalid and spigot closes the connection immediately in that case? I'm just guessing though.

[marceltoepler]

I'm using mcrcon too with the same credentials and it's working, so I think we can rule that out.

[CounterPillow]

I'll try to reproduce this locally with spigot then so that I can investigate further, thanks for the quick responses.

[marceltoepler]

Thank you!