planetstack/core/models/user.py

   1 import os
   2 import datetime
   3 from collections import defaultdict
   4 from django.db import models
   5 from django.db.models import F, Q
   6 from core.models import PlCoreBase,Site, DashboardView, DiffModelMixIn
   7 from core.models.site import Deployment
   8 from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
   9 from timezones.fields import TimeZoneField
  10 from operator import itemgetter, attrgetter
  11 from django.core.mail import EmailMultiAlternatives
  12 from core.middleware import get_request
  13 import model_policy
  14 from django.core.exceptions import PermissionDenied
  15
  16 # ------ from plcorebase.py ------
  17 try:
  18     # This is a no-op if observer_disabled is set to 1 in the config file
  19     from observer import *
  20 except:
  21     print >> sys.stderr, "import of observer failed! printing traceback and disabling observer:"
  22     import traceback
  23     traceback.print_exc()
  24
  25     # guard against something failing
  26     def notify_observer(*args, **kwargs):
  27         pass
  28 # ------ ------
  29
  30 # Create your models here.
  31 class UserManager(BaseUserManager):
  32     def create_user(self, email, firstname, lastname, password=None):
  33         """
  34         Creates and saves a User with the given email, date of
  35         birth and password.
  36         """
  37         if not email:
  38             raise ValueError('Users must have an email address')
  39
  40         user = self.model(
  41             email=UserManager.normalize_email(email),
  42             firstname=firstname,
  43             lastname=lastname,
  44             password=password
  45         )
  46         #user.set_password(password)
  47         user.is_admin = True
  48         user.save(using=self._db)
  49         return user
  50
  51     def create_superuser(self, email, firstname, lastname, password):
  52         """
  53         Creates and saves a superuser with the given email, date of
  54         birth and password.
  55         """
  56         user = self.create_user(email,
  57             password=password,
  58             firstname=firstname,
  59             lastname=lastname
  60         )
  61         user.is_admin = True
  62         user.save(using=self._db)
  63         return user
  64
  65     def get_queryset(self):
  66         parent=super(UserManager, self)
  67         if hasattr(parent, "get_queryset"):
  68             return parent.get_queryset().filter(deleted=False)
  69         else:
  70             return parent.get_query_set().filter(deleted=False)
  71
  72     # deprecated in django 1.7 in favor of get_queryset().
  73     def get_query_set(self):
  74         return self.get_queryset()
  75
  76 class DeletedUserManager(UserManager):
  77     def get_queryset(self):
  78         return super(UserManager, self).get_query_set().filter(deleted=True)
  79
  80     # deprecated in django 1.7 in favor of get_queryset()
  81     def get_query_set(self):
  82         return self.get_queryset()
  83
  84 class User(AbstractBaseUser, DiffModelMixIn):
  85
  86     class Meta:
  87         app_label = "core"
  88
  89     email = models.EmailField(
  90         verbose_name='email address',
  91         max_length=255,
  92         unique=True,
  93         db_index=True,
  94     )
  95
  96     username = models.CharField(max_length=255, default="Something" )
  97
  98     firstname = models.CharField(help_text="person's given name", max_length=200)
  99     lastname = models.CharField(help_text="person's surname", max_length=200)
 100
 101     phone = models.CharField(null=True, blank=True, help_text="phone number contact", max_length=100)
 102     user_url = models.URLField(null=True, blank=True)
 103     site = models.ForeignKey(Site, related_name='users', help_text="Site this user will be homed too", null=True)
 104     public_key = models.TextField(null=True, blank=True, max_length=1024, help_text="Public key string")
 105
 106     is_active = models.BooleanField(default=True)
 107     is_admin = models.BooleanField(default=True)
 108     is_staff = models.BooleanField(default=True)
 109     is_readonly = models.BooleanField(default=False)
 110
 111     created = models.DateTimeField(auto_now_add=True)
 112     updated = models.DateTimeField(auto_now=True)
 113     enacted = models.DateTimeField(null=True, default=None)
 114     backend_status = models.CharField(max_length=140,
 115                                       default="Provisioning in progress")
 116     deleted = models.BooleanField(default=False)
 117
 118     timezone = TimeZoneField()
 119
 120     dashboards = models.ManyToManyField('DashboardView', through='UserDashboardView', blank=True)
 121
 122     objects = UserManager()
 123     deleted_objects = DeletedUserManager()
 124
 125     USERNAME_FIELD = 'email'
 126     REQUIRED_FIELDS = ['firstname', 'lastname']
 127
 128     PI_FORBIDDEN_FIELDS = ["is_admin", "site", "is_staff"]
 129     USER_FORBIDDEN_FIELDS = ["is_admin", "is_active", "site", "is_staff", "is_readonly"]
 130
 131     def __init__(self, *args, **kwargs):
 132         super(User, self).__init__(*args, **kwargs)
 133         self._initial = self._dict # for DiffModelMixIn
 134
 135     def isReadOnlyUser(self):
 136         return self.is_readonly
 137
 138     def get_full_name(self):
 139         # The user is identified by their email address
 140         return self.email
 141
 142     def get_short_name(self):
 143         # The user is identified by their email address
 144         return self.email
 145
 146     def delete(self, *args, **kwds):
 147         # so we have something to give the observer
 148         purge = kwds.get('purge',False)
 149         if purge:
 150             del kwds['purge']
 151         try:
 152             purge = purge or observer_disabled
 153         except NameError:
 154             pass
 155
 156         if (purge):
 157             super(User, self).delete(*args, **kwds)
 158         else:
 159             self.deleted = True
 160             self.enacted=None
 161             self.save(update_fields=['enacted','deleted'])
 162
 163     @property
 164     def keyname(self):
 165         return self.email[:self.email.find('@')]
 166
 167     def __unicode__(self):
 168         return self.email
 169
 170     def has_perm(self, perm, obj=None):
 171         "Does the user have a specific permission?"
 172         # Simplest possible answer: Yes, always
 173         return True
 174
 175     def has_module_perms(self, app_label):
 176         "Does the user have permissions to view the app `app_label`?"
 177         # Simplest possible answer: Yes, always
 178         return True
 179
 180     def is_superuser(self):
 181         return False
 182
 183     def get_dashboards(self):
 184         DEFAULT_DASHBOARDS=["Tenant"]
 185
 186         dashboards = sorted(list(self.userdashboardviews.all()), key=attrgetter('order'))
 187         dashboards = [x.dashboardView for x in dashboards]
 188
 189         if not dashboards:
 190             for dashboardName in DEFAULT_DASHBOARDS:
 191                 dbv = DashboardView.objects.filter(name=dashboardName)
 192                 if dbv:
 193                     dashboards.append(dbv[0])
 194
 195         return dashboards
 196
 197 #    def get_roles(self):
 198 #        from core.models.site import SitePrivilege
 199 #        from core.models.slice import SliceMembership
 200 #
 201 #        site_privileges = SitePrivilege.objects.filter(user=self)
 202 #        slice_memberships = SliceMembership.objects.filter(user=self)
 203 #        roles = defaultdict(list)
 204 #        for site_privilege in site_privileges:
 205 #            roles[site_privilege.role.role_type].append(site_privilege.site.login_base)
 206 #        for slice_membership in slice_memberships:
 207 #            roles[slice_membership.role.role_type].append(slice_membership.slice.name)
 208 #        return roles
 209
 210     def save(self, *args, **kwds):
 211         if not self.id:
 212             self.set_password(self.password)
 213         if self.is_active:
 214             if self.password=="!":\r
 215                 self.send_temporary_password()\r
 216 \r
 217         self.username = self.email
 218         super(User, self).save(*args, **kwds)
 219
 220         self._initial = self._dict
 221
 222     def send_temporary_password(self):
 223         password = User.objects.make_random_password()
 224         self.set_password(password)\r
 225         subject, from_email, to = 'OpenCloud Account Credentials', 'support@opencloud.us', str(self.email)\r
 226         text_content = 'This is an important message.'\r
 227         userUrl="http://%s/" % get_request().get_host()\r
 228         html_content = """<p>Your account has been created on OpenCloud. Please log in <a href="""+userUrl+""">here</a> to activate your account<br><br>Username: """+self.email+"""<br>Temporary Password: """+password+"""<br>Please change your password once you successully login into the site.</p>"""\r
 229         msg = EmailMultiAlternatives(subject,text_content, from_email, [to])\r
 230         msg.attach_alternative(html_content, "text/html")\r
 231         msg.send()
 232
 233     def can_update(self, user):
 234         from core.models import SitePrivilege
 235         _cant_update_fieldName = None
 236         if user.is_readonly:
 237             return False
 238         if user.is_admin:
 239             return True
 240         # site pis can update
 241         site_privs = SitePrivilege.objects.filter(user=user, site=self.site)
 242         for site_priv in site_privs:
 243             if site_priv.role.role == 'pi':
 244                 for fieldName in self.diff.keys():
 245                     if fieldName in self.PI_FORBIDDEN_FIELDS:
 246                         _cant_update_fieldName = fieldName
 247                         return False
 248                 return True
 249         if (user.id == self.id):
 250             for fieldName in self.diff.keys():
 251                 if fieldName in self.USER_FORBIDDEN_FIELDS:
 252                     _cant_update_fieldName = fieldName
 253                     return False
 254             return True
 255
 256         return False
 257
 258     @staticmethod
 259     def select_by_user(user):
 260         if user.is_admin:
 261             qs = User.objects.all()
 262         else:
 263             # can see all users at any site where this user has pi role
 264             from core.models.site import SitePrivilege
 265             site_privs = SitePrivilege.objects.filter(user=user)
 266             sites = [sp.site for sp in site_privs if sp.role.role == 'pi']
 267             # get site privs of users at these sites
 268             site_privs = SitePrivilege.objects.filter(site__in=sites)
 269             user_ids = [sp.user.id for sp in site_privs] + [user.id]
 270             qs = User.objects.filter(Q(site__in=sites) | Q(id__in=user_ids))
 271         return qs
 272
 273     def save_by_user(self, user, *args, **kwds):
 274         if not self.can_update(user):
 275             if getattr(self, "_cant_update_fieldName", None) is not None:
 276                 raise PermissionDenied("You do not have permission to update field %s on object %s" % (self._cant_update_fieldName, self.__class__.__name__))
 277             else:
 278                 raise PermissionDenied("You do not have permission to update %s objects" % self.__class__.__name__)
 279
 280         self.save(*args, **kwds)
 281
 282     def delete_by_user(self, user, *args, **kwds):
 283         if not self.can_update(user):
 284             raise PermissionDenied("You do not have permission to delete %s objects" % self.__class__.__name__)
 285         self.delete(*args, **kwds)
 286
 287 class UserDashboardView(PlCoreBase):
 288      user = models.ForeignKey(User, related_name='userdashboardviews')
 289      dashboardView = models.ForeignKey(DashboardView, related_name='userdashboardviews')
 290      order = models.IntegerField(default=0)