help: Fix structure of markdown context logic.

Refactoring in this file had resulted in the logic for
html_settings_link being duplicated and extra logic being needed to
ensure these variables were set where they were needed.

This fixes subscriptions_html not being rendered properly in the /help
and /api pages, in addition to removing duplicate code.

zerver/tests/test_docs.py

@@ -153,10 +153,10 @@ class IntegrationTest(TestCase):
         self.assertEqual(context["api_url"], "http://mysubdomain.testserver/api")
         self.assertTrue(context["html_settings_links"])
 
-    def test_integration_view_html_settings_links(self) -> None:
+    def test_html_settings_links(self) -> None:
-        context = dict()
+        context = dict()  # type: Dict[str, Any]
-        context['html_settings_links'] = False
+        with self.settings(ROOT_DOMAIN_LANDING_PAGE=True):
-        add_integrations_context(context)
+            add_api_uri_context(context, HostRequestMock())
         self.assertEqual(
             context['settings_html'],
             'Zulip settings page')
@@ -165,8 +165,17 @@ class IntegrationTest(TestCase):
             'streams page')
 
         context = dict()
-        context['html_settings_links'] = True
+        with self.settings(ROOT_DOMAIN_LANDING_PAGE=True):
-        add_integrations_context(context)
+            add_api_uri_context(context, HostRequestMock(host="mysubdomain.testserver"))
+        self.assertEqual(
+            context['settings_html'],
+            '<a href="../../#settings">Zulip settings page</a>')
+        self.assertEqual(
+            context['subscriptions_html'],
+            '<a target="_blank" href="../../#streams">streams page</a>')
+
+        context = dict()
+        add_api_uri_context(context, HostRequestMock())
         self.assertEqual(
             context['settings_html'],
             '<a href="../../#settings">Zulip settings page</a>')

zerver/views/integrations.py

@@ -34,7 +34,16 @@ def add_api_uri_context(context: Dict[str, Any], request: HttpRequest) -> None:
     context['external_uri_scheme'] = settings.EXTERNAL_URI_SCHEME
     context['api_url'] = api_url
     context['api_url_scheme_relative'] = api_url_scheme_relative
+
     context["html_settings_links"] = html_settings_links
+    if html_settings_links:
+        settings_html = '<a href="../../#settings">Zulip settings page</a>'
+        subscriptions_html = '<a target="_blank" href="../../#streams">streams page</a>'
+    else:
+        settings_html = 'Zulip settings page'
+        subscriptions_html = 'streams page'
+    context['settings_html'] = settings_html
+    context['subscriptions_html'] = subscriptions_html
 
 class ApiURLView(TemplateView):
     def get_context_data(self, **kwargs: Any) -> Dict[str, str]:
@@ -102,30 +111,6 @@ def add_integrations_context(context: Dict[str, Any]) -> None:
     context['integrations_dict'] = alphabetical_sorted_integration
     context['integrations_count_display'] = integrations_count_display
 
-    if "html_settings_links" in context and context["html_settings_links"]:
-        settings_html = '<a href="../../#settings">Zulip settings page</a>'
-        subscriptions_html = '<a target="_blank" href="../../#streams">streams page</a>'
-    else:
-        settings_html = 'Zulip settings page'
-        subscriptions_html = 'streams page'
-
-    context['settings_html'] = settings_html
-    context['subscriptions_html'] = subscriptions_html
-
-
-def add_context_for_single_integration(context: Dict[str, Any], name: str, request: HttpRequest) -> None:
-    add_api_uri_context(context, request)
-
-    if "html_settings_links" in context and context["html_settings_links"]:
-        settings_html = '<a href="../../#settings">Zulip settings page</a>'
-        subscriptions_html = '<a target="_blank" href="../../#streams">streams page</a>'
-    else:
-        settings_html = 'Zulip settings page'
-        subscriptions_html = 'streams page'
-
-    context['settings_html'] = settings_html
-    context['subscriptions_html'] = subscriptions_html
-
 
 class IntegrationView(ApiURLView):
     template_name = 'zerver/integrations/index.html'
@@ -144,7 +129,7 @@ def integration_doc(request: HttpRequest, integration_name: str=REQ(default=None
         return HttpResponseNotFound()
 
     context = {}  # type: Dict[str, Any]
-    add_context_for_single_integration(context, integration_name, request)
+    add_api_uri_context(context, request)
 
     context['integration_name'] = integration.name
     context['integration_display_name'] = integration.display_name