def regen_all(cls, context):
"""重算所有缓存，只有通过命令行提权后才能调用"""
User.test_permission(context)
for obj in models.Submission.objects.all():
try:
obj.group = User.get(context, obj.user).group
obj.save()
except NotFound:
pass
for obj in models.FlagClear.objects.all():
try:
user = User.get(context, obj.user)
obj.group = user.group
challenge = Challenge.get(context, obj.challenge)
if obj.flag not in range(len(challenge.flags)):
raise NotFound
obj.save()
except NotFound:
obj.delete()
for challenge in Challenge.get_all(context):
cls._regen_challenge_clear(challenge)
models.ChallengeFirst.objects.all().delete()
models.FlagFirst.objects.all().delete()
cls._refill_first()
cls._regen_score()
def update(self, **kwargs):
User.test_permission(self._context, 'challenge.full')
old = self._json_all
self._update(**kwargs)
new = self._json_all
for subscriber in self.subscribers:
subscriber(old, new)
def get_log(cls,
context,
*,
after=None,
before=None,
limit=None,
challenge=None,
group=None,
match=None):
if after is not None and before is not None:
raise WrongArguments()
User.test_permission(context, 'submission.full', 'submission.view')
queryset = models.Submission.objects.order_by('-pk')
if after is not None:
queryset = queryset.filter(pk__lt=after)
if before is not None:
queryset = queryset.filter(pk__gt=before).reverse()
if challenge is not None:
queryset = queryset.filter(challenge=challenge)
if group is not None:
queryset = queryset.filter(group=group)
if match is not None:
queryset = queryset.filter(flagclear__isnull=not match)
queryset = list(
queryset.values(
'pk',
'user',
'challenge',
'text',
'time',
flag=models.models.F('flagclear__flag'),
)[slice(limit)])
if before is not None:
queryset.reverse()
return queryset
def get_all(cls, context):
queryset = models.Trigger.objects.order_by('time')
try:
User.test_permission(context, 'trigger.full')
except PermissionRequired:
queryset = queryset.filter(time__lte=context.time)
return [cls(context, obj) for obj in queryset]
def delete(self):
User.test_permission(self._context, 'challenge.full')
old = self._json_all
self._obj.expr_set.all().delete()
self._obj.delete()
self._obj = None
for subscriber in self.subscribers:
subscriber(old, None)
def create(cls, context, **kwargs):
User.test_permission(context, 'trigger.full')
self = cls(context, models.Trigger())
self._update(**kwargs)
new = self._json_all
for subscriber in self.subscribers:
subscriber(None, new)
return self
def get_board(cls, context, *, limit=None, category=None, group=None):
if group in User.no_board_groups:
User.test_permission(context, 'submission.full', 'submission.view')
return list(
cls._filter_group(models.Score.objects,
group).filter(category=category).order_by(
'-score',
'time').values('user', 'score',
'time')[slice(limit)])
def get_enabled(cls, context):
User.test_authenticated(context)
Terms.test_agreed_enabled(context)
User.test_profile(context)
try:
User.test_permission(context, 'challenge.full', 'challenge.view')
except PermissionRequired:
Trigger.test_can_view_challenges(context)
queryset = models.Challenge.objects.filter(enabled=True)
return [cls(context, obj) for obj in queryset]
def create(cls, context, **kwargs):
User.test_permission(context, 'challenge.full')
self = cls(context, models.Challenge())
flags = kwargs.pop('flags')
self._update(**kwargs)
self._update(flags=flags)
new = self._json_all
for subscriber in self.subscribers:
subscriber(None, new)
return self
def flags(self):
flags = json.loads(self._obj.flags)
try:
User.test_permission(self._context, 'challenge.full',
'challenge.view')
return flags
except PermissionRequired:
return [{
'name': flag['name'],
'score': flag['score'],
} for flag in flags]
def get_violations(cls, context, *, challenge=None, group=None):
User.test_permission(context, 'submission.full', 'submission.view')
queryset = models.FlagViolation.objects
if challenge is not None:
queryset = queryset.filter(submission__challenge=challenge)
if group is not None:
queryset = queryset.filter(submission__group=group)
return list(queryset.values(
'violation_flag', 'violation_user',
user=models.models.F('submission__user'),
challenge=models.models.F('submission__challenge'),
time=models.models.F('submission__time'),
))
def get_first(cls, context, *, group=None):
if group in User.no_board_groups:
User.test_permission(context, 'submission.full', 'submission.view')
return {
'challenges':
list(
models.ChallengeFirst.objects.filter(group=group).values(
'challenge', 'user', 'time')),
'flags':
list(
models.FlagFirst.objects.filter(group=group).values(
'challenge', 'flag', 'user', 'time')),
}
def get(cls, context, pk):
queryset = models.Challenge.objects.all()
try:
User.test_permission(context, 'challenge.full', 'challenge.view')
except PermissionRequired:
User.test_authenticated(context)
Terms.test_agreed_enabled(context)
User.test_profile(context)
Trigger.test_can_view_challenges(context)
queryset = queryset.filter(enabled=True)
try:
return cls(context, queryset.get(pk=pk))
except models.Challenge.DoesNotExist:
raise NotFound('题目不存在')
def regen_all(cls, context):
"""重算所有缓存，只有通过命令行提权后才能调用"""
User.test_permission(context)
models.User.objects.all().delete()
models.Expr.objects.all().delete()
models.ExprFlag.objects.all().delete()
for challenge in cls.get_all(context):
for i, flag in enumerate(challenge.flags):
if flag['type'] != 'expr':
continue
challenge._obj.expr_set.create(flag_index=i, expr=flag['flag'])
for user in User.get_all(context):
if not user.token:
continue
cls._add_user(user.pk)
models.User.objects.create(user=user.pk)
def get_all(cls, context):
User.test_permission(context, 'challenge.full', 'challenge.view')
return [cls(context, obj) for obj in models.Challenge.objects.all()]
def submit(cls, context, user, challenge, text):
if context.user.pk != user:
User.test_permission(context)
if len(text) > 200:
raise WrongFormat('Flag 不应超过 200 个字符')
user = User.get(context, user)
challenge = Challenge.get(context, challenge)
try:
latest = (models.Submission.objects.filter(
user=user.pk, challenge=challenge.pk).latest('time'))
except models.Submission.DoesNotExist:
pass
else:
if latest.time + timedelta(seconds=10) > context.time:
raise SlowDown('提交过于频繁，请 10 秒后再试')
obj = models.Submission.objects.create(
user=user.pk,
group=user.group,
challenge=challenge.pk,
text=text,
time=context.time,
)
matches, violations = challenge.check_flag_with_violations(text)
queryset = models.FlagClear.objects.filter(user=user.pk,
challenge=challenge.pk)
flags = {i.flag for i in queryset}
match_flags = {i['index'] for i in matches}
for flag in match_flags - flags:
models.FlagClear.objects.create(
submission=obj,
user=user.pk,
group=user.group,
challenge=challenge.pk,
flag=flag,
time=context.time,
)
if user.group not in User.no_score_groups:
models.FlagFirst.objects.get_or_create(
challenge=challenge.pk,
flag=flag,
group=None,
defaults={
'user': user.pk,
'time': context.time
},
)
models.FlagFirst.objects.get_or_create(
challenge=challenge.pk,
flag=flag,
group=user.group,
defaults={
'user': user.pk,
'time': context.time
},
)
for f, u in violations:
models.FlagViolation.objects.create(
submission=obj,
violation_flag=f['index'],
violation_user=u,
)
if match_flags - flags:
if (flags | match_flags).issuperset(range(len(challenge.flags))):
models.ChallengeClear.objects.create(
user=user.pk,
group=user.group,
challenge=challenge.pk,
time=context.time,
)
if user.group not in User.no_score_groups:
models.ChallengeFirst.objects.get_or_create(
challenge=challenge.pk,
group=None,
defaults={
'user': user.pk,
'time': context.time
},
)
models.ChallengeFirst.objects.get_or_create(
challenge=challenge.pk,
group=user.group,
defaults={
'user': user.pk,
'time': context.time
},
)
score = sum(i['score'] for i in matches if i['index'] not in flags)
cls._add_score(user.pk, user.group, context.time, score,
challenge.category)
return matches
def delete(self):
User.test_permission(self._context, 'trigger.full')
self._obj.delete()
self._obj = None
def get(cls, context, pk):
User.test_permission(context, 'trigger.full')
try:
return cls(context, models.Trigger.objects.get(pk=pk))
except models.Trigger.DoesNotExist:
raise NotFound()