planetstack/core/models/user.py

   1 import os
   2 import datetime
   3 from collections import defaultdict
   4 from django.forms.models import model_to_dict
   5 from django.db import models
   6 from django.db.models import F, Q
   7 from core.models import PlCoreBase,Site, DashboardView, DiffModelMixIn
   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     # ---- copy stuff from DiffModelMixin ----
  87
  88     @property
  89     def _dict(self):
  90         return model_to_dict(self, fields=[field.name for field in
  91                              self._meta.fields])
  92
  93     @property
  94     def diff(self):
  95         d1 = self._initial
  96         d2 = self._dict
  97         diffs = [(k, (v, d2[k])) for k, v in d1.items() if v != d2[k]]
  98         return dict(diffs)
  99
 100     @property
 101     def has_changed(self):
 102         return bool(self.diff)
 103
 104     @property
 105     def changed_fields(self):
 106         return self.diff.keys()
 107
 108     def has_field_changed(self, field_name):
 109         return field_name in self.diff.keys()
 110
 111     def get_field_diff(self, field_name):
 112         return self.diff.get(field_name, None)
 113     # ---- end copy stuff from DiffModelMixin ----
 114
 115     class Meta:
 116         app_label = "core"
 117
 118     email = models.EmailField(
 119         verbose_name='email address',
 120         max_length=255,
 121         unique=True,
 122         db_index=True,
 123     )
 124
 125     username = models.CharField(max_length=255, default="Something" )
 126
 127     firstname = models.CharField(help_text="person's given name", max_length=200)
 128     lastname = models.CharField(help_text="person's surname", max_length=200)
 129
 130     phone = models.CharField(null=True, blank=True, help_text="phone number contact", max_length=100)
 131     user_url = models.URLField(null=True, blank=True)
 132     site = models.ForeignKey(Site, related_name='users', help_text="Site this user will be homed too", null=True)
 133     public_key = models.TextField(null=True, blank=True, max_length=1024, help_text="Public key string")
 134
 135     is_active = models.BooleanField(default=True)
 136     is_admin = models.BooleanField(default=True)
 137     is_staff = models.BooleanField(default=True)
 138     is_readonly = models.BooleanField(default=False)
 139
 140     created = models.DateTimeField(auto_now_add=True)
 141     updated = models.DateTimeField(auto_now=True)
 142     enacted = models.DateTimeField(null=True, default=None)
 143     backend_status = models.CharField(max_length=140,
 144                                       default="Provisioning in progress")
 145     deleted = models.BooleanField(default=False)
 146
 147     timezone = TimeZoneField()
 148
 149     dashboards = models.ManyToManyField('DashboardView', through='UserDashboardView', blank=True)
 150
 151     objects = UserManager()
 152     deleted_objects = DeletedUserManager()
 153
 154     USERNAME_FIELD = 'email'
 155     REQUIRED_FIELDS = ['firstname', 'lastname']
 156
 157     PI_FORBIDDEN_FIELDS = ["is_admin", "site", "is_staff"]
 158     USER_FORBIDDEN_FIELDS = ["is_admin", "is_active", "site", "is_staff", "is_readonly"]
 159
 160     def __init__(self, *args, **kwargs):
 161         super(User, self).__init__(*args, **kwargs)
 162         self._initial = self._dict # for DiffModelMixIn
 163
 164     def isReadOnlyUser(self):
 165         return self.is_readonly
 166
 167     def get_full_name(self):
 168         # The user is identified by their email address
 169         return self.email
 170
 171     def get_short_name(self):
 172         # The user is identified by their email address
 173         return self.email
 174
 175     def delete(self, *args, **kwds):
 176         # so we have something to give the observer
 177         purge = kwds.get('purge',False)
 178         if purge:
 179             del kwds['purge']
 180         try:
 181             purge = purge or observer_disabled
 182         except NameError:
 183             pass
 184
 185         if (purge):
 186             super(User, self).delete(*args, **kwds)
 187         else:
 188             self.deleted = True
 189             self.enacted=None
 190             self.save(update_fields=['enacted','deleted'])
 191
 192     @property
 193     def keyname(self):
 194         return self.email[:self.email.find('@')]
 195
 196     def __unicode__(self):
 197         return self.email
 198
 199     def has_perm(self, perm, obj=None):
 200         "Does the user have a specific permission?"
 201         # Simplest possible answer: Yes, always
 202         return True
 203
 204     def has_module_perms(self, app_label):
 205         "Does the user have permissions to view the app `app_label`?"
 206         # Simplest possible answer: Yes, always
 207         return True
 208
 209     def is_superuser(self):
 210         return False
 211
 212     def get_dashboards(self):
 213         DEFAULT_DASHBOARDS=["Tenant"]
 214
 215         dashboards = sorted(list(self.userdashboardviews.all()), key=attrgetter('order'))
 216         dashboards = [x.dashboardView for x in dashboards]
 217
 218         if not dashboards:
 219             for dashboardName in DEFAULT_DASHBOARDS:
 220                 dbv = DashboardView.objects.filter(name=dashboardName)
 221                 if dbv:
 222                     dashboards.append(dbv[0])
 223
 224         return dashboards
 225
 226 #    def get_roles(self):
 227 #        from core.models.site import SitePrivilege
 228 #        from core.models.slice import SliceMembership
 229 #
 230 #        site_privileges = SitePrivilege.objects.filter(user=self)
 231 #        slice_memberships = SliceMembership.objects.filter(user=self)
 232 #        roles = defaultdict(list)
 233 #        for site_privilege in site_privileges:
 234 #            roles[site_privilege.role.role_type].append(site_privilege.site.login_base)
 235 #        for slice_membership in slice_memberships:
 236 #            roles[slice_membership.role.role_type].append(slice_membership.slice.name)
 237 #        return roles
 238
 239     def save(self, *args, **kwds):
 240         if not self.id:
 241             self.set_password(self.password)
 242         if self.is_active:
 243             if self.password=="!":\r
 244                 self.send_temporary_password()\r
 245 \r
 246         self.username = self.email
 247         super(User, self).save(*args, **kwds)
 248
 249         self._initial = self._dict
 250
 251     def send_temporary_password(self):
 252         password = User.objects.make_random_password()
 253         self.set_password(password)\r
 254         subject, from_email, to = 'OpenCloud Account Credentials', 'support@opencloud.us', str(self.email)\r
 255         text_content = 'This is an important message.'\r
 256         userUrl="http://%s/" % get_request().get_host()\r
 257         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
 258         msg = EmailMultiAlternatives(subject,text_content, from_email, [to])\r
 259         msg.attach_alternative(html_content, "text/html")\r
 260         msg.send()
 261
 262     def can_update(self, user):
 263         from core.models import SitePrivilege
 264         _cant_update_fieldName = None
 265         if user.is_readonly:
 266             return False
 267         if user.is_admin:
 268             return True
 269         # site pis can update
 270         site_privs = SitePrivilege.objects.filter(user=user, site=self.site)
 271         for site_priv in site_privs:
 272             if site_priv.role.role == 'pi':
 273                 for fieldName in self.diff.keys():
 274                     if fieldName in self.PI_FORBIDDEN_FIELDS:
 275                         _cant_update_fieldName = fieldName
 276                         return False
 277                 return True
 278         if (user.id == self.id):
 279             for fieldName in self.diff.keys():
 280                 if fieldName in self.USER_FORBIDDEN_FIELDS:
 281                     _cant_update_fieldName = fieldName
 282                     return False
 283             return True
 284
 285         return False
 286
 287     @staticmethod
 288     def select_by_user(user):
 289         if user.is_admin:
 290             qs = User.objects.all()
 291         else:
 292             # can see all users at any site where this user has pi role
 293             from core.models.site import SitePrivilege
 294             site_privs = SitePrivilege.objects.filter(user=user)
 295             sites = [sp.site for sp in site_privs if sp.role.role == 'pi']
 296             # get site privs of users at these sites
 297             site_privs = SitePrivilege.objects.filter(site__in=sites)
 298             user_ids = [sp.user.id for sp in site_privs] + [user.id]
 299             qs = User.objects.filter(Q(site__in=sites) | Q(id__in=user_ids))
 300         return qs
 301
 302     def save_by_user(self, user, *args, **kwds):
 303         if not self.can_update(user):
 304             if getattr(self, "_cant_update_fieldName", None) is not None:
 305                 raise PermissionDenied("You do not have permission to update field %s on object %s" % (self._cant_update_fieldName, self.__class__.__name__))
 306             else:
 307                 raise PermissionDenied("You do not have permission to update %s objects" % self.__class__.__name__)
 308
 309         self.save(*args, **kwds)
 310
 311     def delete_by_user(self, user, *args, **kwds):
 312         if not self.can_update(user):
 313             raise PermissionDenied("You do not have permission to delete %s objects" % self.__class__.__name__)
 314         self.delete(*args, **kwds)
 315
 316 class UserDashboardView(PlCoreBase):
 317      user = models.ForeignKey(User, related_name='userdashboardviews')
 318      dashboardView = models.ForeignKey(DashboardView, related_name='userdashboardviews')
 319      order = models.IntegerField(default=0)