Add ability to resolve project id into path

By visiting `projects/:id` you will be redirected to project page with
path in it.

projects/123 => foo/bar

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

2 files changed, 57 insertions, 0 deletions

diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index f84f069f4db..9801ed19957 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -955,6 +955,59 @@ describe ProjectsController do
     end
   end
 
+  describe 'GET resolve' do
+    shared_examples 'resolvable endpoint' do
+      it 'redirects to the project page' do
+        get :resolve, params: { id: project.id }
+
+        expect(response).to have_gitlab_http_status(302)
+        expect(response).to redirect_to(project_path(project))
+      end
+    end
+
+    context 'with an authenticated user' do
+      before do
+        sign_in(user)
+      end
+
+      context 'when user has access to the project' do
+        before do
+          project.add_developer(user)
+        end
+
+        it_behaves_like 'resolvable endpoint'
+      end
+
+      context 'when user has no access to the project' do
+        it 'gives 404 for existing project' do
+          get :resolve, params: { id: project.id }
+
+          expect(response).to have_gitlab_http_status(404)
+        end
+      end
+
+      it 'gives 404 for non-existing project' do
+        get :resolve, params: { id: '0' }
+
+        expect(response).to have_gitlab_http_status(404)
+      end
+    end
+
+    context 'non authenticated user' do
+      context 'with a public project' do
+        let(:project) { public_project }
+
+        it_behaves_like 'resolvable endpoint'
+      end
+
+      it 'gives 404 for private project' do
+        get :resolve, params: { id: project.id }
+
+        expect(response).to have_gitlab_http_status(404)
+      end
+    end
+  end
+
   def project_moved_message(redirect_route, project)
     "Project '#{redirect_route.path}' was moved to '#{project.full_path}'. Please update any links and bookmarks that may still have the old path."
   end
diff --git a/spec/routing/project_routing_spec.rb b/spec/routing/project_routing_spec.rb
index 5c3b37ef11c..a0d01fc8263 100644
--- a/spec/routing/project_routing_spec.rb
+++ b/spec/routing/project_routing_spec.rb
@@ -122,6 +122,10 @@ describe 'project routing' do
         route_to('projects#preview_markdown', namespace_id: 'gitlab', id: 'gitlabhq')
       )
     end
+
+    it 'to #resolve' do
+      expect(get('/projects/1')).to route_to('projects#resolve', id: '1')
+    end
   end
 
   # members_namespace_project_autocomplete_sources_path        GET /:project_id/autocomplete_sources/members(.:format)        projects/autocomplete_sources#members