Android client gets internal server error logging into timezone-aware server 8.0.3

[jimays]

Android client gets Internal Server Error logging into 8.0.3 server that has been made timezone aware by setting TIMEZONE and USE_TZ=True in seahub_settings.py.

Traceback in seahub.log ends with:

File "/opt/seafile/seafile-server-8.0.3/seahub/seahub/api2/authentication.py", line 130, in authenticate_v2
if not within_time_range(token.last_accessed, datetime.datetime.now(), 10 * 60):
File "/opt/seafile/seafile-server-8.0.3/seahub/seahub/utils/init.py", line 1335, in within_time_range
delta = d2 - d1 if d2 > d1 else d1 - d2
TypeError: can't compare offset-naive and offset-aware datetimes
2021-03-01 07:32:24,435 [ERROR] django.request:228 log_response Internal Server Error: /seafile/api2/account/inf
o/

I fixed this issue with a patch as I posted in https://forum.seafile.com/t/seafile-client-doesnt-connect-to-server/11983/3

vi /opt/seafile/seafile-server-8.0.3/seahub/seahub/api2/authentication.py # near line 130, fix mobile login
        # 13.0.8.5.12-t6 jimays token.last_accessed is timezone-aware, so must be compared with such
        # gratitude stackoverflow questions/4530069/how-do-i-get-a-value-of-datetime-today-in-py
thon-that-is-timezone-aware/25421145
        # gratitude stackoverflow questions/5802108/how-to-check-if-a-datetime-object-is-localiz
ed-with-pytz

        # if not within_time_range(token.last_accessed, datetime.datetime.now(), 10 * 60):

        import pytz
        if not within_time_range(token.last_accessed, datetime.datetime.now() if (token.last_accessed.tzinfo is None or token.last_accessed.tzinfo.utcoffset(token.last_accessed) is None) else datetime.datetime.utcnow().replace(tzinfo=pytz.utc), 10 * 60):