[Backport] Fixing contacts and stats endpoints for users API

taiga/users/api.py

@@ -111,7 +111,7 @@ class UsersViewSet(ModelCrudViewSet):
     def stats(self, request, *args, **kwargs):
         user = get_object_or_404(models.User, **kwargs)
         self.check_permissions(request, "stats", user)
-        return response.Ok(services.get_stats_for_user(user))
+        return response.Ok(services.get_stats_for_user(user, request.user))
 
     @list_route(methods=["POST"])
     def password_recovery(self, request, pk=None):

taiga/users/filters.py

@@ -15,30 +15,14 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from django.apps import apps
-from django.db.models import Q
 
 from taiga.base.filters import PermissionBasedFilterBackend
+from . import services
 
 class ContactsFilterBackend(PermissionBasedFilterBackend):
-    permission = "view_project"
-
     def filter_queryset(self, user, request, queryset, view):
         qs = queryset.filter(is_active=True)
-        Membership = apps.get_model('projects', 'Membership')
-        memberships_qs = Membership.objects.filter(user=user)
-
-        # Authenticated
-        if request.user.is_authenticated():
-            # if super user we don't need to filter anything
-            if not request.user.is_superuser:
-                memberships_qs = memberships_qs.filter(Q(role__permissions__contains=[self.permission]) |
-                                                       Q(is_owner=True))
-
-        # Anonymous
-        else:
-            memberships_qs = memberships_qs.filter(project__anon_permissions__contains=[self.permission])
-
-        projects_list = [membership.project_id for membership in memberships_qs]
-        qs = qs.filter(memberships__project_id__in=projects_list)
+        project_ids = services.get_visible_project_ids(user, request.user)
+        qs = qs.filter(memberships__project_id__in=project_ids)
         qs = qs.exclude(id=user.id)
         return qs.distinct()

taiga/users/services.py

@@ -89,21 +89,51 @@ def get_big_photo_or_gravatar_url(user):
     else:
         return get_gravatar_url(user.email, size=settings.DEFAULT_BIG_AVATAR_SIZE)
 
-def get_stats_for_user(user):
-    """Get the user stats"""
 
-    project_ids = user.memberships.values_list("project__id", flat=True).distinct()
-    total_num_projects = project_ids.count()
-    roles = [_(r) for r in user.memberships.values_list("role__name", flat=True)]
+def get_visible_project_ids(from_user, by_user):
+    """Calculate the project_ids from one user visible by another"""
+    required_permissions = ["view_project"]
+    #Or condition for membership filtering, the basic one is the access to projects allowing anonymous visualization
+    member_perm_conditions = Q(project__anon_permissions__contains=required_permissions)
+
+    # Authenticated
+    if by_user.is_authenticated():
+        #Calculating the projects wich from_user user is member
+        by_user_project_ids = by_user.memberships.values_list("project__id", flat=True)
+        #Adding to the condition two OR situations:
+        #- The from user has a role that allows access to the project
+        #- The to user is the owner
+        member_perm_conditions |= \
+            Q(project__id__in=by_user_project_ids, role__permissions__contains=required_permissions) |\
+            Q(project__id__in=by_user_project_ids, is_owner=True)
+
+    Membership = apps.get_model('projects', 'Membership')
+    #Calculating the user memberships adding the permission filter for the by user
+    memberships_qs = Membership.objects.filter(member_perm_conditions, user=from_user)
+    project_ids = memberships_qs.values_list("project__id", flat=True)
+    return project_ids
+
+
+def get_stats_for_user(from_user, by_user):
+    """Get the user stats"""
+    project_ids = get_visible_project_ids(from_user, by_user)
+
+    total_num_projects = len(project_ids)
+
+    roles = [_(r) for r in from_user.memberships.filter(project__id__in=project_ids).values_list("role__name", flat=True)]
     roles = list(set(roles))
+
     User = apps.get_model('users', 'User')
     total_num_contacts = User.objects.filter(memberships__project__id__in=project_ids)\
-        .exclude(id=user.id)\
+        .exclude(id=from_user.id)\
         .distinct()\
         .count()
 
     UserStory = apps.get_model('userstories', 'UserStory')
-    total_num_closed_userstories = UserStory.objects.filter(is_closed=True, assigned_to=user).count()
+    total_num_closed_userstories = UserStory.objects.filter(
+        is_closed=True,
+        project__id__in=project_ids,
+        assigned_to=from_user).count()
 
     project_stats = {
         'total_num_projects': total_num_projects,

tests/unit/test_timeline.py

@@ -57,13 +57,6 @@ def test_add_to_objects_timeline():
             service.push_to_timeline(None, project, "test")
 
 
-def test_modify_created_timeline_entry():
-    timeline = Timeline()
-    timeline.pk = 3
-    with pytest.raises(ValidationError):
-        timeline.save()
-
-
 def test_get_impl_key_from_model():
     assert service._get_impl_key_from_model(Timeline, "test") == "timeline.timeline.test"
     with pytest.raises(Exception):