Fix 500 error when ordinary user viewed system JTs (#15465)

awx/main/access.py

@@ -1843,6 +1843,11 @@ class SystemJobTemplateAccess(BaseAccess):
 
     model = SystemJobTemplate
 
+    def filtered_queryset(self):
+        if self.user.is_superuser or self.user.is_system_auditor:
+            return self.model.objects.all()
+        return self.model.objects.none()
+
     @check_superuser
     def can_start(self, obj, validate_license=True):
         '''Only a superuser can start a job from a SystemJobTemplate'''

awx/main/tests/functional/test_rbac_job.py

@@ -2,7 +2,7 @@ import pytest
 
 from rest_framework.exceptions import PermissionDenied
 
-from awx.main.access import JobAccess, JobLaunchConfigAccess, AdHocCommandAccess, InventoryUpdateAccess, ProjectUpdateAccess
+from awx.main.access import JobAccess, JobLaunchConfigAccess, AdHocCommandAccess, InventoryUpdateAccess, ProjectUpdateAccess, SystemJobTemplateAccess
 from awx.main.models import (
     Job,
     JobLaunchConfig,
@@ -350,3 +350,21 @@ class TestLaunchConfigAccess:
 
         assert access.can_use(config)
         assert rando.can_access(JobLaunchConfig, 'use', config)
+
+
+@pytest.mark.django_db
+class TestSystemJobTemplateAccess:
+    def test_system_job_template_auditor(self, system_auditor, system_job_template):
+        access = SystemJobTemplateAccess(system_auditor)
+        assert access.can_read(system_job_template)
+        assert not access.can_start(system_job_template)
+
+    def test_system_job_template_rando(self, rando, system_job_template):
+        access = SystemJobTemplateAccess(rando)
+        assert not access.can_read(system_job_template)
+        assert not access.can_start(system_job_template)
+
+    def test_system_job_template_superuser(self, admin_user, system_job_template):
+        access = SystemJobTemplateAccess(admin_user)
+        assert access.can_read(system_job_template)
+        assert access.can_start(system_job_template)

awx/main/tests/unit/test_access.py

@@ -5,7 +5,7 @@ from django.contrib.auth.models import User
 from django.forms.models import model_to_dict
 from rest_framework.exceptions import ParseError
 
-from awx.main.access import BaseAccess, check_superuser, JobTemplateAccess, WorkflowJobTemplateAccess, SystemJobTemplateAccess, vars_are_encrypted
+from awx.main.access import BaseAccess, check_superuser, JobTemplateAccess, WorkflowJobTemplateAccess, vars_are_encrypted
 
 from awx.main.models import (
     Credential,
@@ -239,14 +239,3 @@ def test_user_capabilities_method():
     foo = object()
     foo_capabilities = foo_access.get_user_capabilities(foo, ['edit', 'copy'])
     assert foo_capabilities == {'edit': 'bar', 'copy': 'foo'}
-
-
-def test_system_job_template_can_start(mocker):
-    user = mocker.MagicMock(spec=User, id=1, is_system_auditor=True, is_superuser=False)
-    assert user.is_system_auditor
-    access = SystemJobTemplateAccess(user)
-    assert not access.can_start(None)
-
-    user.is_superuser = True
-    access = SystemJobTemplateAccess(user)
-    assert access.can_start(None)