officejs_support_request_ui: Tolerate Events with non visible SR in RSS

bt5/erp5_officejs_support_request_ui/SkinTemplateItem/portal_skins/erp5_officejs_support_request/SupportRequestModule_getEventList.py

@@ -16,7 +16,11 @@ def getSupportRequestInfo(event):
   try:
     return getSupportRequest_memo[follow_up]
   except KeyError:
-    support_request = portal.restrictedTraverse(follow_up)
+    support_request = portal.restrictedTraverse(follow_up, None)
+    if support_request is None:
+      # For corner cases where user has an event for which he cannot access the ticket,
+      # we don't raise error so that others events are visible.
+      return event.getTitle(), '', ''
     getSupportRequest_memo[follow_up] = (
       support_request.getTitle(),
       support_request.getResourceTranslatedTitle() or '',

bt5/erp5_officejs_support_request_ui_test/TestTemplateItem/portal_components/test.erp5.testSupportRequest.py

@@ -525,6 +525,29 @@ class TestSupportRequestRSSSMultipleEvents(SupportRequestRSSTestCase, DefaultTes
     self.assertFalse(rss.bozo)
 
 
+class TestSupportRequestRSSSNonVisibleSupportRequest(SupportRequestRSSTestCase, DefaultTestRSSMixin):
+  """Edge case test for support request RSS for an event (visible by user) on a support request not visible by user.
+  """
+  def afterSetUp(self):
+    super(TestSupportRequestRSSSNonVisibleSupportRequest, self).afterSetUp()
+    support_request = self.support_request.Base_createCloneDocument(batch_mode=True)
+    support_request.manage_permission('View', ['Manager'], 0)
+    self.event.setFollowUpValue(support_request)
+    self.tic()
+
+  def _checkRSS(self, response):
+    self.assertEqual(httplib.OK, response.getStatus())
+    rss = feedparser.parse(response.getBody())
+    item, = rss.entries
+    self.assertEqual(item['author'], self.user.getTitle())
+    # there's no link to support request, as user cannot see it.
+    self.assertNotIn(self.support_request.getRelativeUrl(), item['link'])
+    self.assertEqual(item['published'], DateTime(2001, 1, 1).rfc822())
+    self.assertEqual(item['summary'], '<p>This is <b>Content</b></p>')
+    # https://pythonhosted.org/feedparser/bozo.html#advanced-bozo
+    self.assertFalse(rss.bozo)
+
+
 class TestIngestPostAsWebMessage(SupportRequestTestCase):
   """Tests ingesting HTML Post into web messages.
   """