Expose assets filepath URL on UI

Part of https://gitlab.com/gitlab-org/gitlab/issues/27300

See merge request https://gitlab.com/gitlab-org/gitlab/issues/27300

app/assets/javascripts/releases/components/release_block_assets.vue

@@ -34,7 +34,7 @@ export default {
 
     <ul v-if="assets.links.length" class="pl-0 mb-0 prepend-top-8 list-unstyled js-assets-list">
       <li v-for="link in assets.links" :key="link.name" class="append-bottom-8">
-        <gl-link v-gl-tooltip.bottom :title="__('Download asset')" :href="link.url">
+        <gl-link v-gl-tooltip.bottom :title="__('Download asset')" :href="link.directAssetUrl">
           <icon name="package" class="align-middle append-right-4 align-text-bottom" />
           {{ link.name }}
           <span v-if="link.external">{{ __('(external source)') }}</span>

changelogs/unreleased/27300-expose-filepath-url-on-ui.yml

+---
+title: Expose assets filepath URL on UI
+merge_request: 25635
+author:
+type: added

spec/controllers/projects/releases_controller_spec.rb

@@ -198,6 +198,46 @@ describe Projects::ReleasesController do
     end
   end
 
+  context 'GET #downloads' do
+    subject do
+      get :downloads, params: { namespace_id: project.namespace, project_id: project, tag: tag, filepath: filepath }
+    end
+
+    before do
+      sign_in(user)
+    end
+
+    let(:release) { create(:release, project: project, tag: tag ) }
+    let!(:link) { create(:release_link, release: release, name: 'linux-amd64 binaries', filepath: '/binaries/linux-amd64', url: 'https://downloads.example.com/bin/gitlab-linux-amd64') }
+    let(:tag) { 'v11.9.0-rc2' }
+
+    context 'valid filepath' do
+      let(:filepath) { CGI.escape('/binaries/linux-amd64') }
+
+      it 'redirects to the asset direct link' do
+        subject
+
+        expect(response).to redirect_to('https://downloads.example.com/bin/gitlab-linux-amd64')
+      end
+
+      it 'redirects with a status of 302' do
+        subject
+
+        expect(response).to have_gitlab_http_status(:redirect)
+      end
+    end
+
+    context 'invalid filepath' do
+      let(:filepath) { CGI.escape('/binaries/win32') }
+
+      it 'is not found' do
+        subject
+
+        expect(response).to have_gitlab_http_status(:not_found)
+      end
+    end
+  end
+
   context 'GET #downloads' do
     subject do
       get :downloads, params: {

spec/features/projects/releases/user_views_releases_spec.rb

@@ -24,16 +24,31 @@ describe 'User views releases', :js do
   context 'when there is a link as an asset' do
     let!(:release_link) { create(:release_link, release: release, url: url ) }
     let(:url) { "#{project.web_url}/-/jobs/1/artifacts/download" }
+    let(:direct_asset_link) { Gitlab::Routing.url_helpers.project_release_url(project, release) << release_link.filepath }
 
     it 'sees the link' do
       visit project_releases_path(project)
 
       page.within('.js-assets-list') do
-        expect(page).to have_link release_link.name, href: release_link.url
+        expect(page).to have_link release_link.name, href: direct_asset_link
         expect(page).not_to have_content('(external source)')
       end
     end
 
+    context 'when there is a link redirect' do
+      let!(:release_link) { create(:release_link, release: release, name: 'linux-amd64 binaries', filepath: '/binaries/linux-amd64', url: url) }
+      let(:url) { "#{project.web_url}/-/jobs/1/artifacts/download" }
+
+      it 'sees the link' do
+        visit project_releases_path(project)
+
+        page.within('.js-assets-list') do
+          expect(page).to have_link release_link.name, href: direct_asset_link
+          expect(page).not_to have_content('(external source)')
+        end
+      end
+    end
+
     context 'when url points to external resource' do
       let(:url) { 'http://google.com/download' }
 

spec/frontend/releases/components/release_block_spec.js

@@ -92,7 +92,7 @@ describe('Release block', () => {
       expect(wrapper.findAll('.js-assets-list li').length).toEqual(release.assets.links.length);
 
       expect(wrapper.find('.js-assets-list li a').attributes().href).toEqual(
-        first(release.assets.links).url,
+        first(release.assets.links).directAssetUrl,
       );
 
       expect(wrapper.find('.js-assets-list li a').text()).toContain(

spec/frontend/releases/mock_data.js

@@ -96,6 +96,7 @@ export const release = {
         id: 1,
         name: 'my link',
         url: 'https://google.com',
+        direct_asset_url: 'https://redirected.google.com',
         external: true,
       },
       {
@@ -103,6 +104,7 @@ export const release = {
         name: 'my second link',
         url:
           'https://gitlab.com/gitlab-org/gitlab-foss/-/jobs/artifacts/v11.6.0-rc4/download?job=rspec-mysql+41%2F50',
+        direct_asset_url: 'https://redirected.google.com',
         external: false,
       },
     ],