discourse/spec/requests/static_controller_spec.rb

# frozen_string_literal: true

RSpec.describe StaticController do
  fab!(:upload) { Fabricate(:upload) }

  describe '#favicon' do
    let(:filename) { 'smallest.png' }
    let(:file) { file_from_fixtures(filename) }

    let(:upload) do
      UploadCreator.new(file, filename).create_for(Discourse.system_user.id)
    end

    after do
      Discourse.redis.scan_each(match: "memoize_*").each do |key|
        Discourse.redis.del(key)
      end
    end

    context 'with local store' do
      it 'returns the default favicon if favicon has not been configured' do
        get '/favicon/proxied'

        expect(response.status).to eq(200)
        expect(response.media_type).to eq('image/png')
        expect(response.body.bytesize).to eq(SiteIconManager.favicon.filesize)
      end

      it 'returns the configured favicon' do
        SiteSetting.favicon = upload

        get '/favicon/proxied'

        expect(response.status).to eq(200)
        expect(response.media_type).to eq('image/png')
        expect(response.body.bytesize).to eq(upload.filesize)
      end
    end

    context 'with external store' do
      let(:upload) do
        Upload.create!(
          url: '//s3-upload-bucket.s3-us-east-1.amazonaws.com/somewhere/a.png',
          original_filename: filename,
          filesize: file.size,
          user_id: Discourse.system_user.id
        )
      end

      before do
        setup_s3
      end

      it 'can proxy a favicon correctly' do
        SiteSetting.favicon = upload

        stub_request(:get, "https:/#{upload.url}")
          .to_return(status: 200, body: file)

        get '/favicon/proxied'

        expect(response.status).to eq(200)
        expect(response.media_type).to eq('image/png')
        expect(response.body.bytesize).to eq(upload.filesize)
      end
    end
  end

  describe '#brotli_asset' do
    it 'returns a non brotli encoded 404 if asset is missing' do
      get "/brotli_asset/missing.js"

      expect(response.status).to eq(404)
      expect(response.headers['Content-Encoding']).not_to eq('br')
      expect(response.headers['Cache-Control']).to match(/max-age=1/)
    end

    it 'can handle fallback brotli assets' do
      begin
        assets_path = Rails.root.join("tmp/backup_assets")

        GlobalSetting.stubs(:fallback_assets_path).returns(assets_path.to_s)

        FileUtils.mkdir_p(assets_path)

        file_path = assets_path.join("test.js.br")
        File.write(file_path, 'fake brotli file')

        get "/brotli_asset/test.js"

        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).to match(/public/)
      ensure
        File.delete(file_path)
      end
    end

    it 'has correct headers for brotli assets' do
      begin
        assets_path = Rails.root.join("public/assets")

        FileUtils.mkdir_p(assets_path)

        file_path = assets_path.join("test.js.br")
        File.write(file_path, 'fake brotli file')

        get "/brotli_asset/test.js"

        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).to match(/public/)
      ensure
        File.delete(file_path)
      end
    end

    it 'has correct cors headers for brotli assets' do
      begin
        assets_path = Rails.root.join("public/assets")

        FileUtils.mkdir_p(assets_path)

        file_path = assets_path.join("test.js.br")
        File.write(file_path, 'fake brotli file')
        GlobalSetting.stubs(:cdn_url).returns("https://www.example.com/")

        get "/brotli_asset/test.js"

        expect(response.status).to eq(200)
        expect(response.headers["Access-Control-Allow-Origin"]).to match("*")
      ensure
        File.delete(file_path)
      end
    end
  end

  describe '#cdn_asset' do
    let (:site) { RailsMultisite::ConnectionManagement.current_db }

    it 'can serve assets' do
      begin
        assets_path = Rails.root.join("public/assets")

        FileUtils.mkdir_p(assets_path)

        file_path = assets_path.join("test.js.br")
        File.write(file_path, 'fake brotli file')

        get "/cdn_asset/#{site}/test.js.br"

        expect(response.status).to eq(200)
        expect(response.headers["Cache-Control"]).to match(/public/)
      ensure
        File.delete(file_path)
      end
    end
  end

  describe '#show' do
    before do
      post = create_post
      SiteSetting.tos_topic_id = post.topic.id
      SiteSetting.guidelines_topic_id = post.topic.id
      SiteSetting.privacy_topic_id = post.topic.id
    end

    context "with a static file that's present" do
      it "should return the right response for /faq" do
        get "/faq"

        expect(response.status).to eq(200)
        expect(response.body).to include(I18n.t('js.faq'))
        expect(response.body).to include("<title>FAQ - Discourse</title>")
      end
    end

    [
      ['tos', :tos_url, I18n.t('js.tos')],
      ['privacy', :privacy_policy_url, I18n.t('js.privacy')]
    ].each do |id, setting_name, text|

      context "#{id}" do
        context "when #{setting_name} site setting is NOT set" do
          it "renders the #{id} page" do
            get "/#{id}"

            expect(response.status).to eq(200)
            expect(response.body).to include(text)
          end
        end

        context "when #{setting_name} site setting is set" do
          before do
            SiteSetting.set(setting_name, 'http://example.com/page')
          end

          it "redirects to the #{setting_name}" do
            get "/#{id}"

            expect(response).to redirect_to('http://example.com/page')
          end
        end
      end
    end

    context "with a missing file" do
      it "should respond 404" do
        get "/static/does-not-exist"
        expect(response.status).to eq(404)
      end

      context "with modal pages" do
        it "should return the right response for /signup" do
          get "/signup"
          expect(response.status).to eq(200)
        end

        it "should return the right response for /password-reset" do
          get "/password-reset"
          expect(response.status).to eq(200)
        end
      end
    end

    it 'should redirect to / when logged in and path is /login' do
      sign_in(Fabricate(:user))
      get "/login"
      expect(response).to redirect_to('/')
    end

    it "should display the login template when login is required" do
      SiteSetting.login_required = true

      get "/login"

      expect(response.status).to eq(200)

      expect(response.body).to include(PrettyText.cook(I18n.t(
        'login_required.welcome_message', title: SiteSetting.title
      )))
    end

    context "when login_required is enabled" do
      before do
        SiteSetting.login_required = true
      end

      ['faq', 'guidelines', 'rules', 'conduct'].each do |page_name|
        it "#{page_name} page redirects to login page for anon" do
          get "/#{page_name}"
          expect(response).to redirect_to '/login'
        end

        it "#{page_name} page redirects to login page for anon" do
          get "/#{page_name}"
          expect(response).to redirect_to '/login'
        end

        it "#{page_name} page loads for logged in user" do
          sign_in(Fabricate(:user))

          get "/#{page_name}"

          expect(response.status).to eq(200)
          expect(response.body).to include(I18n.t('js.guidelines'))
        end
      end
    end

    context "with crawler view" do
      it "should include correct title" do
        get '/faq', headers: { 'HTTP_USER_AGENT' => 'Googlebot' }
        expect(response.status).to eq(200)
        expect(response.body).to include("<title>FAQ - Discourse</title>")
      end
    end

    context "with plugin api extensions" do
      after do
        Rails.application.reload_routes!
        StaticController::CUSTOM_PAGES.clear
      end

      it "adds new topic-backed pages" do
        routes = Proc.new do
          get "contact" => "static#show", id: "contact"
        end
        Discourse::Application.routes.send(:eval_block, routes)

        topic_id = Fabricate(:post, cooked: "contact info").topic_id
        SiteSetting.setting(:test_contact_topic_id, topic_id)

        Plugin::Instance.new.add_topic_static_page("contact", topic_id: "test_contact_topic_id")

        get "/contact"

        expect(response.status).to eq(200)
        expect(response.body).to include("contact info")
      end

      it "replaces existing topic-backed pages" do
        topic_id = Fabricate(:post, cooked: "Regular FAQ").topic_id
        SiteSetting.setting(:test_faq_topic_id, topic_id)
        polish_topic_id = Fabricate(:post, cooked: "Polish FAQ").topic_id
        SiteSetting.setting(:test_polish_faq_topic_id, polish_topic_id)

        Plugin::Instance.new.add_topic_static_page("faq") do
          current_user&.locale == "pl" ? "test_polish_faq_topic_id" : "test_faq_topic_id"
        end

        get "/faq"

        expect(response.status).to eq(200)
        expect(response.body).to include("Regular FAQ")

        sign_in(Fabricate(:user, locale: "pl"))
        get "/faq"

        expect(response.status).to eq(200)
        expect(response.body).to include("Polish FAQ")
      end
    end

    it "does not pollute SiteSetting.title (regression)" do
      SiteSetting.title = "test"
      SiteSetting.short_site_description = "something"

      expect do
        get "/login"
        get "/login"
      end.to_not change { SiteSetting.title }
    end
  end

  describe '#enter' do
    context 'without a redirect path' do
      it 'redirects to the root url' do
        post "/login.json"
        expect(response).to redirect_to('/')
      end
    end

    context 'with a redirect path' do
      it 'redirects to the redirect path' do
        post "/login.json", params: { redirect: '/foo' }
        expect(response).to redirect_to('/foo')
      end
    end

    context 'with a full url' do
      it 'redirects to the correct path' do
        post "/login.json", params: { redirect: "#{Discourse.base_url}/foo" }
        expect(response).to redirect_to('/foo')
      end
    end

    context 'with a redirect path with query params' do
      it 'redirects to the redirect path and preserves query params' do
        post "/login.json", params: { redirect: '/foo?bar=1' }
        expect(response).to redirect_to('/foo?bar=1')
      end
    end

    context 'with a period to force a new host' do
      it 'redirects to the root path' do
        post "/login.json", params: { redirect: ".org/foo" }
        expect(response).to redirect_to('/')
      end
    end

    context 'with a full url to someone else' do
      it 'redirects to the root path' do
        post "/login.json", params: { redirect: "http://eviltrout.com/foo" }
        expect(response).to redirect_to('/')
      end
    end

    context 'with an invalid URL' do
      it "redirects to the root" do
        post "/login.json", params: { redirect: "javascript:alert('trout')" }
        expect(response).to redirect_to('/')
      end
    end

    context 'with an array' do
      it "redirects to the root" do
        post "/login.json", params: { redirect: ["/foo"] }
        expect(response.status).to eq(400)
        json = response.parsed_body
        expect(json["errors"]).to be_present
        expect(json["errors"]).to include(
          I18n.t("invalid_params", message: "redirect")
        )
      end
    end

    context 'when the redirect path is the login page' do
      it 'redirects to the root url' do
        post "/login.json", params: { redirect: login_path }
        expect(response).to redirect_to('/')
      end
    end
  end

  describe "#service_worker_asset" do
    it "works" do
      get "/service-worker.js"
      expect(response.status).to eq(200)
      expect(response.content_type).to start_with("application/javascript")
      expect(response.body).to include("workbox")
    end

    it "replaces sourcemap URL" do
      Rails.application.assets_manifest.stubs(:find_sources).with("service-worker.js").returns([
        <<~JS
          someFakeServiceWorkerSource();
          //# sourceMappingURL=service-worker-abcde.js.map
        JS
      ])

      {
        '/assets/service-worker.js' => '/assets/service-worker-abcde.js.map',
        '/assets/service-worker.js.br' => '/assets/service-worker-abcde.js.map',
        '/assets/service-worker.br.js' => '/assets/service-worker-abcde.js.map',
        '/assets/service-worker.js.gz' => '/assets/service-worker-abcde.js.map',
        '/assets/service-worker.gz.js' => '/assets/service-worker-abcde.js.map',
        'https://example.com/assets/service-worker.js' => 'https://example.com/assets/service-worker-abcde.js.map',
        'https://example.com/subfolder/assets/service-worker.js' => 'https://example.com/subfolder/assets/service-worker-abcde.js.map',
      }.each do |asset_path, expected_map_url|
        ActionController::Base.helpers.stubs(:asset_path).with("service-worker.js").returns(asset_path)

        get "/service-worker.js"
        expect(response.status).to eq(200)
        expect(response.content_type).to start_with("application/javascript")
        expect(response.body).to include("sourceMappingURL=#{expected_map_url}\n")
      end
    end
  end
end