observer_disabled was not being imported into core/models/user.py

[plstackapi.git] / planetstack / core / models / user.py

diff --git a/planetstack/core/models/user.py b/planetstack/core/models/user.py
index d8355a2..1b3be29 100644 (file)
--- a/planetstack/core/models/user.py
+++ b/planetstack/core/models/user.py
@@ -3,7 +3,7 @@ import datetime
 from collections import defaultdict
 from django.db import models
 from django.db.models import F, Q
-from core.models import PlCoreBase,Site, DashboardView
+from core.models import PlCoreBase,Site, DashboardView, DiffModelMixIn
 from core.models.site import Deployment
 from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
 from timezones.fields import TimeZoneField
@@ -11,6 +11,21 @@ from operator import itemgetter, attrgetter
 from django.core.mail import EmailMultiAlternatives
 from core.middleware import get_request
 import model_policy
+from django.core.exceptions import PermissionDenied
+
+# ------ from plcorebase.py ------
+try:
+    # This is a no-op if observer_disabled is set to 1 in the config file
+    from observer import *
+except:
+    print >> sys.stderr, "import of observer failed! printing traceback and disabling observer:"
+    import traceback
+    traceback.print_exc()
+
+    # guard against something failing
+    def notify_observer(*args, **kwargs):
+        pass
+# ------ ------
 
 # Create your models here.
 class UserManager(BaseUserManager):
@@ -48,10 +63,14 @@ class UserManager(BaseUserManager):
         return user
 
 class DeletedUserManager(UserManager):
-    def get_query_set(self):
+    def get_queryset(self):
         return super(UserManager, self).get_query_set().filter(deleted=True)
 
-class User(AbstractBaseUser):
+    # deprecated in django 1.7 in favor of get_queryset()
+    def get_query_set(self):
+        return self.get_queryset()
+
+class User(AbstractBaseUser, DiffModelMixIn):
 
     class Meta:
         app_label = "core"
@@ -95,6 +114,13 @@ class User(AbstractBaseUser):
     USERNAME_FIELD = 'email'
     REQUIRED_FIELDS = ['firstname', 'lastname']
 
+    PI_FORBIDDEN_FIELDS = ["is_admin", "site", "is_staff"]
+    USER_FORBIDDEN_FIELDS = ["is_admin", "is_active", "site", "is_staff", "is_readonly"]
+
+    def __init__(self, *args, **kwargs):
+        super(User, self).__init__(*args, **kwargs)
+        self._initial = self._dict # for DiffModelMixIn
+
     def isReadOnlyUser(self):
         return self.is_readonly
 
@@ -178,6 +204,8 @@ class User(AbstractBaseUser):
         self.username = self.email
         super(User, self).save(*args, **kwds)
 
+        self._initial = self._dict
+
     def send_temporary_password(self):
         password = User.objects.make_random_password()
         self.set_password(password)\r
@@ -189,6 +217,31 @@ class User(AbstractBaseUser):
         msg.attach_alternative(html_content, "text/html")\r
         msg.send()
 
+    def can_update(self, user):
+        from core.models import SitePrivilege
+        _cant_update_fieldName = None
+        if user.is_readonly:
+            return False
+        if user.is_admin:
+            return True
+        # site pis can update
+        site_privs = SitePrivilege.objects.filter(user=user, site=self.site)
+        for site_priv in site_privs:
+            if site_priv.role.role == 'pi':
+                for fieldName in self.diff.keys():
+                    if fieldName in self.PI_FORBIDDEN_FIELDS:
+                        _cant_update_fieldName = fieldName
+                        return False
+                return True
+        if (user.id == self.id):
+            for fieldName in self.diff.keys():
+                if fieldName in self.USER_FORBIDDEN_FIELDS:
+                    _cant_update_fieldName = fieldName
+                    return False
+            return True
+
+        return False
+
     @staticmethod
     def select_by_user(user):
         if user.is_admin:
@@ -204,6 +257,20 @@ class User(AbstractBaseUser):
             qs = User.objects.filter(Q(site__in=sites) | Q(id__in=user_ids))
         return qs
 
+    def save_by_user(self, user, *args, **kwds):
+        if not self.can_update(user):
+            if getattr(self, "_cant_update_fieldName", None) is not None:
+                raise PermissionDenied("You do not have permission to update field %s on object %s" % (self._cant_update_fieldName, self.__class__.__name__))
+            else:
+                raise PermissionDenied("You do not have permission to update %s objects" % self.__class__.__name__)
+
+        self.save(*args, **kwds)
+
+    def delete_by_user(self, user, *args, **kwds):
+        if not self.can_update(user):
+            raise PermissionDenied("You do not have permission to delete %s objects" % self.__class__.__name__)
+        self.delete(*args, **kwds)
+
 class UserDashboardView(PlCoreBase):
      user = models.ForeignKey(User, related_name="dashboardViews")
      dashboardView = models.ForeignKey(DashboardView, related_name="dashboardViews")