fix(stats): hide stats if no project access (#81162)

Second attempt of #80447

Comparing with the previous attempt, we now also allow project stats for
staff users (`or user.is_staff`).

The superuser case is already covered in this code:

https://github.com/getsentry/sentry/blob/2e5e0654c717adfa569be7875f44cb7e2bda4a74/src/sentry/api/serializers/models/project.py#L131-L136
`is_superuser` is True, therefore `has_access` is True, and the first
condition in this snippet works:
```
if attrs["has_access"] or user.is_staff:
```

src/sentry/api/serializers/models/project.py

@@ -770,14 +770,16 @@ def serialize(
         )
         if not self._collapse(LATEST_DEPLOYS_KEY):
             context[LATEST_DEPLOYS_KEY] = attrs["deploys"]
-        if "stats" in attrs:
-            context.update(stats=attrs["stats"])
-        if "transactionStats" in attrs:
-            context.update(transactionStats=attrs["transactionStats"])
-        if "sessionStats" in attrs:
-            context.update(sessionStats=attrs["sessionStats"])
-        if "options" in attrs:
-            context.update(options=attrs["options"])
+
+        if attrs["has_access"] or user.is_staff:
+            if "stats" in attrs:
+                context.update(stats=attrs["stats"])
+            if "transactionStats" in attrs:
+                context.update(transactionStats=attrs["transactionStats"])
+            if "sessionStats" in attrs:
+                context.update(sessionStats=attrs["sessionStats"])
+            if "options" in attrs:
+                context.update(options=attrs["options"])
 
         return context
 

tests/sentry/api/endpoints/test_organization_projects.py

@@ -1,3 +1,4 @@
+import pytest
 from django.urls import reverse
 
 from sentry.models.apikey import ApiKey
@@ -6,7 +7,7 @@
 from sentry.testutils.silo import assume_test_silo_mode
 from sentry.testutils.skips import requires_snuba
 
-pytestmark = [requires_snuba]
+pytestmark = [pytest.mark.sentry_metrics, requires_snuba]
 
 
 class OrganizationProjectsTestBase(APITestCase):
@@ -85,6 +86,70 @@ def test_with_stats(self):
             self.organization.slug, qs_params={"statsPeriod": "48h"}, status_code=400
         )
 
+    def test_staff_with_stats(self):
+        projects = [self.create_project(teams=[self.team])]
+
+        # disable Open Membership
+        self.organization.flags.allow_joinleave = False
+        self.organization.save()
+
+        staff_user = self.create_user(is_staff=True)
+        self.login_as(user=staff_user, staff=True)
+
+        response = self.get_success_response(
+            self.organization.slug,
+            qs_params={"statsPeriod": "24h", "transactionStats": "1", "sessionStats": "1"},
+        )
+        self.check_valid_response(response, projects)
+
+        assert "stats" in response.data[0]
+        assert "transactionStats" in response.data[0]
+        assert "sessionStats" in response.data[0]
+
+    def test_superuser_with_stats(self):
+        projects = [self.create_project(teams=[self.team])]
+
+        # disable Open Membership
+        self.organization.flags.allow_joinleave = False
+        self.organization.save()
+
+        superuser = self.create_user(is_superuser=True)
+        self.login_as(user=superuser, superuser=True)
+
+        response = self.get_success_response(
+            self.organization.slug,
+            qs_params={"statsPeriod": "24h", "transactionStats": "1", "sessionStats": "1"},
+        )
+        self.check_valid_response(response, projects)
+
+        assert "stats" in response.data[0]
+        assert "transactionStats" in response.data[0]
+        assert "sessionStats" in response.data[0]
+
+    def test_no_stats_if_no_project_access(self):
+        projects = [self.create_project(teams=[self.team])]
+
+        # disable Open Membership
+        self.organization.flags.allow_joinleave = False
+        self.organization.save()
+
+        # user has no access to the first project
+        user_no_team = self.create_user(is_superuser=False)
+        self.create_member(
+            user=user_no_team, organization=self.organization, role="member", teams=[]
+        )
+        self.login_as(user_no_team)
+
+        response = self.get_success_response(
+            self.organization.slug,
+            qs_params={"statsPeriod": "24h", "transactionStats": "1", "sessionStats": "1"},
+        )
+        self.check_valid_response(response, projects)
+
+        assert "stats" not in response.data[0]
+        assert "transactionStats" not in response.data[0]
+        assert "sessionStats" not in response.data[0]
+
     def test_search(self):
         project = self.create_project(teams=[self.team], name="bar", slug="bar")