Hide clone panel and file list when user is only a guest

Fixes gitlab-org/gitlab-ce#17489

Fix test finding two of the same element

Capybara will raise an exception because it finds two elements that
match .nav-links. This means this test would fail, even if the page
meets the conditions for passing the test.

Add more tests for guest access

app/controllers/projects_controller.rb

@@ -257,7 +257,7 @@ class ProjectsController < Projects::ApplicationController
   #
   # pages list order: repository readme, wiki home, issues list, customize workflow
   def render_landing_page
-    if @project.feature_available?(:repository, current_user)
+    if can?(current_user, :download_code, @project)
       return render 'projects/no_repo' unless @project.repository_exists?
       render 'projects/empty' if @project.empty_repo?
     else

app/helpers/preferences_helper.rb

@@ -49,7 +49,7 @@ module PreferencesHelper
     user_view = current_user.project_view
-    if @project.feature_available?(:repository, current_user)
+    if can?(current_user, :download_code, @project)
       user_view
     elsif user_view == "activity"
       "activity"

app/views/projects/_home_panel.html.haml

@@ -24,7 +24,7 @@
         = render 'projects/buttons/fork'
       %span.hidden-xs
-        - if @project.feature_available?(:repository, current_user)
+        - if can?(current_user, :download_code, @project)
           .project-clone-holder
             = render "shared/clone_panel"

changelogs/unreleased/17489-hide-code-from-guests.yml

+---
+title: Hide clone panel and file list when user is only a guest
+merge_request:
+author: James Clark

spec/features/projects/guest_navigation_menu_spec.rb

@@ -13,7 +13,7 @@ describe "Guest navigation menu" do
   it "shows allowed tabs only" do
     visit namespace_project_path(project.namespace, project)
-    within(".nav-links") do
+    within(".layout-nav") do
       expect(page).to have_content 'Project'
       expect(page).to have_content 'Issues'
       expect(page).to have_content 'Wiki'
@@ -23,4 +23,51 @@ describe "Guest navigation menu" do
       expect(page).not_to have_content 'Merge Requests'
     end
   end
+
+  it "does not show fork button" do
+    visit namespace_project_path(project.namespace, project)
+
+    within(".count-buttons") do
+      expect(page).not_to have_link 'Fork'
+    end
+  end
+
+  it "does not show clone path" do
+    visit namespace_project_path(project.namespace, project)
+
+    within(".project-repo-buttons") do
+      expect(page).not_to have_selector '.project-clone-holder'
+    end
+  end
+
+  describe 'project landing page' do
+    before do
+      project.project_feature.update_attribute("issues_access_level", ProjectFeature::DISABLED)
+      project.project_feature.update_attribute("wiki_access_level", ProjectFeature::DISABLED)
+    end
+
+    it "does not show the project file list landing page" do
+      visit namespace_project_path(project.namespace, project)
+      expect(page).not_to have_selector '.project-stats'
+      expect(page).not_to have_selector '.project-last-commit'
+      expect(page).not_to have_selector '.project-show-files'
+    end
+
+    it "shows the customize workflow when issues and wiki are disabled" do
+      visit namespace_project_path(project.namespace, project)
+      expect(page).to have_selector '.project-show-customize_workflow'
+    end
+
+    it "shows the wiki when enabled" do
+      project.project_feature.update_attribute("wiki_access_level", ProjectFeature::PRIVATE)
+      visit namespace_project_path(project.namespace, project)
+      expect(page).to have_selector '.project-show-wiki'
+    end
+
+    it "shows the issues when enabled" do
+      project.project_feature.update_attribute("issues_access_level", ProjectFeature::PRIVATE)
+      visit namespace_project_path(project.namespace, project)
+      expect(page).to have_selector '.issues-list'
+    end
+  end
 end