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import uuid
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
from common.utils import date_expired_default
class AssetPermission(models.Model):
from users.models import User, UserGroup
from assets.models import Asset, AssetGroup, SystemUser, Cluster
id = models.UUIDField(default=uuid.uuid4, primary_key=True)
name = models.CharField(max_length=128, unique=True, verbose_name=_('Name'))
users = models.ManyToManyField(User, related_name='asset_permissions', blank=True, verbose_name=_("User"))
user_groups = models.ManyToManyField(UserGroup, related_name='asset_permissions', blank=True, verbose_name=_("User group"))
assets = models.ManyToManyField(Asset, related_name='granted_by_permissions', blank=True, verbose_name=_("Asset"))
asset_groups = models.ManyToManyField(AssetGroup, related_name='granted_by_permissions', blank=True, verbose_name=_("Asset group"))
system_users = models.ManyToManyField(SystemUser, related_name='granted_by_permissions', verbose_name=_("System user"))
is_active = models.BooleanField(default=True, verbose_name=_('Active'))
date_expired = models.DateTimeField(default=date_expired_default, verbose_name=_('Date expired'))
created_by = models.CharField(max_length=128, blank=True, verbose_name=_('Created by'))
date_created = models.DateTimeField(auto_now_add=True, verbose_name=_('Date created'))
comment = models.TextField(verbose_name=_('Comment'), blank=True)
def __str__(self):
return self.name
@property
def is_valid(self):
if self.date_expired > timezone.now() and self.is_active:
return True
return False
def get_granted_users(self):
return list(set(self.users.all()) | self.get_granted_user_groups_member())
def get_granted_user_groups_member(self):
users = set()
for user_group in self.user_groups.all():
for user in user_group.users.all():
setattr(user, 'is_inherit_from_user_groups', True)
setattr(user, 'inherit_from_user_groups',
getattr(user, 'inherit_from_user_groups', set()).add(user_group))
users.add(user)
return users
def get_granted_assets(self):
return list(set(self.assets.all()) | self.get_granted_asset_groups_member())
def get_granted_asset_groups_member(self):
assets = set()
for asset_group in self.asset_groups.all():
for asset in asset_group.assets.all():
setattr(asset, 'is_inherit_from_asset_groups', True)
setattr(asset, 'inherit_from_asset_groups',
getattr(asset, 'inherit_from_user_groups', set()).add(asset_group))
assets.add(asset)
return assets
def check_system_user_in_assets(self):
errors = {}
assets = self.get_granted_assets()
clusters = set([asset.cluster for asset in assets])
for system_user in self.system_users.all():
cluster_remain = clusters - set(system_user.cluster.all())
if cluster_remain:
errors[system_user] = cluster_remain
return errors
class NodePermission(models.Model):
id = models.UUIDField(default=uuid.uuid4, primary_key=True)
node = models.ForeignKey('assets.Node', on_delete=models.CASCADE, verbose_name=_("Node"))
user_group = models.ForeignKey('users.UserGroup', on_delete=models.CASCADE, verbose_name=_("User group"))
system_user = models.ForeignKey('assets.SystemUser', on_delete=models.CASCADE, verbose_name=_("System user"))
is_active = models.BooleanField(default=True, verbose_name=_('Active'))
date_expired = models.DateTimeField(default=date_expired_default, verbose_name=_('Date expired'))
created_by = models.CharField(max_length=128, blank=True, verbose_name=_('Created by'))
date_created = models.DateTimeField(auto_now_add=True, verbose_name=_('Date created'))
comment = models.TextField(verbose_name=_('Comment'), blank=True)
def __str__(self):
return "{}:{}:{}".format(self.node.value, self.user_group.name, self.system_user.name)
class Meta:
unique_together = ('node', 'user_group', 'system_user')
verbose_name = _("Asset permission")