planetstack/core/models/site.py

   1 import os
   2 from django.db import models
   3 from core.models import PlCoreBase,PlCoreBaseManager,PlCoreBaseDeletionManager
   4 from core.models import Tag
   5 from django.contrib.contenttypes import generic
   6 from geoposition.fields import GeopositionField
   7 from core.acl import AccessControlList
   8
   9 class DeploymentLinkManager(PlCoreBaseManager):
  10     def get_queryset(self):
  11         parent=super(DeploymentLinkManager, self)
  12         if hasattr(parent, "get_queryset"):
  13             return parent.get_queryset().filter(Q(deployment__backend_type=config.observer_backend_type)|Q(backend_type=None))
  14         else:
  15             return parent.get_queryset().filter(Q(deployment__backend_type=config.observer_backend_type)|Q(backend_type=None))
  16
  17     # deprecated in django 1.7 in favor of get_queryset().
  18     def get_query_set(self):
  19         return self.get_queryset()
  20
  21
  22 class DeploymentManager(PlCoreBaseManager):
  23     def get_queryset(self):
  24         parent=super(DeploymentManager, self)
  25         if hasattr(parent, "get_queryset"):
  26             return parent.get_queryset().filter(Q(backend_type=config.observer_backend_type)|Q(backend_type=None))
  27         else:
  28             return parent.get_queryset().filter(Q(backend_type=config.observer_backend_type)|Q(backend_type=None))
  29
  30     # deprecated in django 1.7 in favor of get_queryset().
  31     def get_query_set(self):
  32         return self.get_queryset()
  33
  34 class Site(PlCoreBase):
  35     """
  36         A logical grouping of Nodes that are co-located at the same geographic location, which also typically corresponds to the Nodes' location in the physical network.
  37     """
  38     name = models.CharField(max_length=200, help_text="Name for this Site")
  39     site_url = models.URLField(null=True, blank=True, max_length=512, help_text="Site's Home URL Page")
  40     enabled = models.BooleanField(default=True, help_text="Status for this Site")
  41     location = GeopositionField()
  42     longitude = models.FloatField(null=True, blank=True)
  43     latitude = models.FloatField(null=True, blank=True)
  44     login_base = models.CharField(max_length=50, unique=True, help_text="Prefix for Slices associated with this Site")
  45     is_public = models.BooleanField(default=True, help_text="Indicates the visibility of this site to other members")
  46     abbreviated_name = models.CharField(max_length=80)
  47
  48     #deployments = models.ManyToManyField('Deployment', blank=True, related_name='sites')
  49     deployments = models.ManyToManyField('Deployment', through='SiteDeployments', blank=True, help_text="Select which sites are allowed to host nodes in this deployment", related_name='sites')
  50     tags = generic.GenericRelation(Tag)
  51
  52     def __unicode__(self):  return u'%s' % (self.name)
  53
  54     def can_update(self, user):
  55         if user.is_readonly:
  56             return False
  57         if user.is_admin:
  58             return True
  59         site_privs = SitePrivilege.objects.filter(user=user, site=self)
  60         for site_priv in site_privs:
  61             if site_priv.role.role == 'pi':
  62                 return True
  63         return False
  64
  65     @staticmethod
  66     def select_by_user(user):
  67         if user.is_admin:
  68             qs = Site.objects.all()
  69         else:
  70             site_ids = [sp.site.id for sp in SitePrivilege.objects.filter(user=user)]
  71             site_ids.append(user.site.id)
  72             qs = Site.objects.filter(id__in=site_ids)
  73         return qs
  74
  75
  76 class SiteRole(PlCoreBase):
  77
  78     ROLE_CHOICES = (('admin','Admin'),('pi','PI'),('tech','Tech'),('billing','Billing'))
  79     role = models.CharField(choices=ROLE_CHOICES, unique=True, max_length=30)
  80
  81     def __unicode__(self):  return u'%s' % (self.role)
  82
  83 class SitePrivilege(PlCoreBase):
  84
  85     user = models.ForeignKey('User', related_name='site_privileges')
  86     site = models.ForeignKey('Site', related_name='site_privileges')
  87     role = models.ForeignKey('SiteRole')
  88
  89     def __unicode__(self):  return u'%s %s %s' % (self.site, self.user, self.role)
  90
  91     def save(self, *args, **kwds):
  92         super(SitePrivilege, self).save(*args, **kwds)
  93
  94     def delete(self, *args, **kwds):
  95         super(SitePrivilege, self).delete(*args, **kwds)
  96
  97     def can_update(self, user):
  98         return self.site.can_update(user)
  99
 100     @staticmethod
 101     def select_by_user(user):
 102         if user.is_admin:
 103             qs = SitePrivilege.objects.all()
 104         else:
 105             sp_ids = [sp.id for sp in SitePrivilege.objects.filter(user=user)]
 106             qs = SitePrivilege.objects.filter(id__in=sp_ids)
 107         return qs
 108
 109 class Deployment(PlCoreBase):
 110     name = models.CharField(max_length=200, unique=True, help_text="Name of the Deployment")
 111     admin_user = models.CharField(max_length=200, null=True, blank=True, help_text="Username of an admin user at this deployment")
 112     admin_password = models.CharField(max_length=200, null=True, blank=True, help_text="Password of theadmin user at this deployment")\r
 113     admin_tenant = models.CharField(max_length=200, null=True, blank=True, help_text="Name of the tenant the admin user belongs to")\r
 114     auth_url = models.CharField(max_length=200, null=True, blank=True, help_text="Auth url for the deployment")
 115     backend_type = models.CharField(max_length=200, null=True, blank=True, help_text="Type of deployment, e.g. EC2, OpenStack, or OpenStack version")
 116
 117     # smbaker: the default of 'allow all' is intended for evolutions of existing
 118     #    deployments. When new deployments are created via the GUI, they are
 119     #    given a default of 'allow site <site_of_creator>'
 120     accessControl = models.TextField(max_length=200, blank=False, null=False, default="allow all",
 121                                      help_text="Access control list that specifies which sites/users may use nodes in this deployment")
 122
 123     def get_acl(self):
 124         return AccessControlList(self.accessControl)
 125
 126     def test_acl(self, slice=None, user=None):
 127         potential_users=[]
 128
 129         if user:
 130             potential_users.append(user)
 131
 132         if slice:
 133             potential_users.append(slice.creator)
 134             for priv in slice.slice_privileges.all():
 135                 if priv.user not in potential_users:
 136                     potential_users.append(priv.user)
 137
 138         acl = self.get_acl()
 139         for user in potential_users:
 140             if acl.test(user) == "allow":
 141                 return True
 142
 143         return False
 144
 145     @staticmethod
 146     def select_by_acl(user):
 147         ids = []
 148         for deployment in Deployment.objects.all():
 149             acl = deployment.get_acl()
 150             if acl.test(user) == "allow":
 151                 ids.append(deployment.id)
 152
 153         return Deployment.objects.filter(id__in=ids)
 154
 155     def __unicode__(self):  return u'%s' % (self.name)
 156
 157     @staticmethod
 158     def select_by_user(user):
 159         return Deployment.objects.all()
 160
 161 class DeploymentRole(PlCoreBase):
 162
 163     ROLE_CHOICES = (('admin','Admin'),)
 164     role = models.CharField(choices=ROLE_CHOICES, unique=True, max_length=30)
 165
 166     def __unicode__(self):  return u'%s' % (self.role)
 167
 168 class DeploymentPrivilege(PlCoreBase):
 169
 170     user = models.ForeignKey('User', related_name='deployment_privileges')
 171     deployment = models.ForeignKey('Deployment', related_name='deployment_privileges')
 172     role = models.ForeignKey('DeploymentRole')
 173
 174     def __unicode__(self):  return u'%s %s %s' % (self.deployment, self.user, self.role)
 175
 176     def can_update(self, user):
 177         if user.is_readonly:
 178             return False
 179         if user.is_admin:
 180             return True
 181         dprivs = DeploymentPrivilege.objects.filter(user=user)
 182         for dpriv in dprivs:
 183             if dpriv.role.role == 'admin':
 184                 return True
 185         return False
 186
 187     @staticmethod
 188     def select_by_user(user):
 189         if user.is_admin:
 190             qs = DeploymentPrivilege.objects.all()
 191         else:
 192             dpriv_ids = [dp.id for dp in DeploymentPrivilege.objects.filter(user=user)]
 193             qs = DeploymentPrivilege.objects.filter(id__in=dpriv_ids)
 194         return qs
 195
 196 class SiteDeployments(PlCoreBase):
 197     site = models.ForeignKey(Site)
 198     deployment = models.ForeignKey(Deployment)
 199     tenant_id = models.CharField(null=True, blank=True, max_length=200, help_text="Keystone tenant id")
 200
 201     @staticmethod
 202     def select_by_user(user):
 203         return SiteDeployments.objects.all()
 204
 205     #class Meta:
 206     #    db_table = 'core_site_deployments'
 207     #    #auto_created = Site
 208