kopano-cachestat not working

sultansofswing

Hi, I’m using Kopano 8.7.5 (UCS integration). Upgraded from 8.7.1. Since upgrade, monitoring by a self-written check_mk plugin does not return any data.
Analyzed it and found that check_mk agent clears locale data on invocation:

unset LANG
export LC_ALL=C

calling kopano-cachestat this way returns:

root@hostname:/usr/lib/check_mk_agent/local# LANG= LC_ALL=C /usr/sbin/kopano-cachestat
Traceback (most recent call last):
  File "/usr/sbin/kopano-cachestat", line 18, in <module>
    server = kopano.Server(options=options, auth_user='SYSTEM', auth_pass='')
  File "/usr/lib/python3/dist-packages/kopano/server.py", line 241, in __init__
    config = _config.Config(None, filename=config_file)
  File "/usr/lib/python3/dist-packages/kopano/config.py", line 103, in __init__
    self._parse_config(fh)
  File "/usr/lib/python3/dist-packages/kopano/config.py", line 115, in _parse_config
    for line in fh:
  File "/usr/lib/python3.5/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 193: ordinal not in range(128)

Looking into kopano-cachestat I found that the third column of the query

table = server.table(PR_EC_STATSTABLE_SYSTEM, columns=[PR_DISPLAY_NAME_W, PR_EC_STATS_SYSTEM_VALUE, PR_EC_STATS_SYSTEM_DESCRIPTION])

returns localized strings (the server is set up in de_DE.UTF-8 locale) even in the absence of LANG, and LC_ALL=C. I would propose stripping the third column from the query, given that it is not processed in any way:

for row in table.rows():
    name, value, _ = row

(and the ‘_’ variable not used anywhere in the script). With the proposed changes, the script starts working again under the given environment.

Regards, sultansofswing.