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""" | ||
dealing with users (User records in our database) | ||
""" | ||
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from datetime import datetime | ||
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from django.contrib.auth import get_user_model | ||
from django.core.management.base import BaseCommand | ||
from django.db import transaction | ||
from django.utils import timezone | ||
from django.utils.translation import ugettext_lazy as _ | ||
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from nsupdate.main.models import Host, Domain | ||
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DAY = 24 * 3600 # [s] | ||
T_age = 365 * DAY # min. age of last login for considering deletion of a user | ||
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NEVER = datetime.fromtimestamp(DAY, timezone.utc) # 2.1.1970 | ||
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LOG_MSG_DELETE = _("%%(user)s hasn't logged in for %(age)fy, has no hosts and no domains -> deleted user.") | ||
LOG_MSG_HAS_HOSTS = _("%%(user)s kept, has hosts. age: %(age)fy, hosts: %(hosts)d.") | ||
LOG_MSG_HAS_DOMAINS = _("%%(user)s kept, has domains. age: %(age)fy, hosts: %(hosts)d, domains: %(domains)d.") | ||
LOG_MSG_RECENTLY_USED = _("%(user)s kept, was used recently.") | ||
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def check_staleness(u): | ||
""" | ||
checks the staleness of User u (has not logged in for a longer time, | ||
has no hosts and no domains) and if it is stale, delete it. | ||
Return log msg (can be None). | ||
:param u: user instance | ||
:return: deleted, log_msg | ||
""" | ||
t_now = timezone.now() | ||
t_last_login = u.last_login or NEVER | ||
age = (t_now - t_last_login).total_seconds() | ||
if age < T_age: | ||
log_msg = LOG_MSG_RECENTLY_USED | ||
else: | ||
age_y = age / 365.0 / DAY | ||
host_count = Host.objects.filter(created_by=u).count() | ||
if host_count > 0: | ||
log_msg = LOG_MSG_HAS_HOSTS % dict(age=age_y, hosts=host_count) | ||
else: | ||
domain_count = Domain.objects.filter(created_by=u).count() | ||
if domain_count > 0: | ||
log_msg = LOG_MSG_HAS_DOMAINS % dict(age=age_y, hosts=host_count, domains=domain_count) | ||
else: | ||
# is not recently used, has no hosts, no domains | ||
u.delete() | ||
log_msg = LOG_MSG_DELETE % dict(age=age_y) | ||
return log_msg | ||
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class Command(BaseCommand): | ||
help = 'deal with users' | ||
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def add_arguments(self, parser): | ||
parser.add_argument('--stale-check', | ||
action='store_true', | ||
dest='stale_check', | ||
default=False, | ||
help='check whether user has logged in recently and has hosts or domains, delete if not') | ||
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def handle(self, *args, **options): | ||
def print_stats(when): | ||
user_count = User.objects.all().count() | ||
host_count = Host.objects.all().count() | ||
domain_count = Domain.objects.all().count() | ||
print("%s: users: %d, hosts %d, domains: %d" % (when, user_count, host_count, domain_count)) | ||
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stale_check = options['stale_check'] | ||
User = get_user_model() | ||
with transaction.atomic(): | ||
print_stats("before") | ||
for u in User.objects.all(): | ||
user = "%s <%s>" % (u.username, u.email) | ||
if stale_check: | ||
log_msg = check_staleness(u) | ||
if log_msg: | ||
log_msg = log_msg % dict(user=user) | ||
self.stdout.write(log_msg) | ||
print_stats("after") |